Works (70)
Updated: August 25th, 2023 21:17
2021 article
Optical properties of segmented Ag-Au wire at single particle level studied with a home-built micro-spectrometer
Neupane, B. B., Chase, T. E., Zhao, L., Wang, G., & He, L. (2021, July 18). ENGINEERING REPORTS.
author keywords: hetero-metallic nanowires; second harmonic generation; surface plasmon resonance; two-photon excitation luminescence; up-conversion luminescence
onlinelibrary.wiley.com (publisher PDF)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 2, 2021
2020 journal article
Study on self-assembly of colloidal particles at high ionic strength with stimulated emission depletion microscopy
ENGINEERING REPORTS, 2(9).
author keywords: DLVO theory; ionic strength; negatively charged; resolution; self-assembly; stimulated emission depletion
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 9, 2021
2020 article
Three-Dimensional Single Particle Tracking and Its Applications in Confined Environments
ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 13, Vol. 13, pp. 381–403.
author keywords: three-dimensional single particle tracking; point spread function; PSF; astigmatic imaging; double-helix PSF; deep neural networks; confined environment
TL;DR:
The presented studies demonstrate the great potential of 3D SPT for understanding fundamental phenomena in confined space, which will enable us to predict basic principles involved in chemical recognition, separation, and analysis, and to optimize mass transport and responses by structural design and optimization.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: December 11, 2020
2019 journal article
Enhancing Photostability of Fluorescent Dye-Attached Molecular Machines at Air-Glass Interface Using Cyclooctatetraene
JOURNAL OF PHYSICAL CHEMISTRY C, 123(5), 3011–3018.
TL;DR:
This study evaluated using a triplet-state quencher cyclooctatetraene (COT) group to enhance the photostability of cy5-attached molecular machines to show that the COT group provides further protection for the second dye in a single-dye-modified nanocars.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: February 25, 2019
2019 journal article
Harnessing Plasmon-Induced Hot Carriers at the Interfaces with Ferroelectrics
Frontiers in Chemistry, 7(299), 1–19.
author keywords: ferroelectrics; surface plasmon resonance; Schottky barrier; spontaneous polarization; hot electrons; charge injection; photocatalysis
TL;DR:
Results demonstrate that integrated ferroelectric-plasmonic systems represent a potentially transformative concept for use in the field of solar energy conversion.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: May 28, 2019
2019 journal article
Interfacing Plasmonic Nanoparticles with Ferroelectrics for Hot-Carrier-Driven Photocatalysis: Impact of Schottky Barrier Height
ACS APPLIED ENERGY MATERIALS, 2(10), 7690–7699.
author keywords: Pt-end-capped gold nanorods; ferroelectrics; surface plasmon resonance; hot electrons; charge separation; photocatalysts; H-2 production
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: February 3, 2020
2019 journal article
Near-Infrared Light Activates Molecular Nanomachines to Drill into and Kill Cells
ACS NANO, 13(6), 6813–6823.
author keywords: two-photon excitation; molecular nanomachines; cell membranes; cell killing; cancer; antibiotic-resistant bacteria
MeSH headings : 3T3 Cells; Animals; Cell Death; Cell Membrane / metabolism; HeLa Cells; Humans; Infrared Rays; MCF-7 Cells; Mice; Nanostructures / chemistry; Nanostructures / radiation effects; Nanostructures / toxicity; PC-3 Cells; Photons; Smart Materials / chemistry; Smart Materials / radiation effects; Smart Materials / toxicity
TL;DR:
Using two-photon excitation (2PE), molecular nanomachines (MNMs) are able to drill through cell membranes and kill the cells using the more damaging ultraviolet light used formerly to induce this nanomechanical cell-killing effect.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: July 15, 2019
2018 journal article
Composite Ferroelectric and Plasmonic Particles for Hot Charge Separation and Photocatalytic Hydrogen Gas Production
ACS APPLIED ENERGY MATERIALS, 1(9), 4606–4616.
author keywords: Pt-end-capped gold nanorods; ferroelectrics; surface plasmon resonance; hot electrons; photocatalysts; H-2 production
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: March 4, 2019
2018 journal article
Developing Noise-Resistant Three-Dimensional Single Particle Tracking Using Deep Neural Networks
ANALYTICAL CHEMISTRY, 90(18), 10748–10757.
MeSH headings : Fluorescent Dyes / chemistry; Imaging, Three-Dimensional; Microscopy, Fluorescence; Neural Networks, Computer; Particle Size; Signal-To-Noise Ratio
TL;DR:
This work test deep neural networks (DNNs) in recognizing and differentiating very similar image patterns incurred in 3D SPT and shows that for high S/N images, both DNNs and conventional correlation coefficient-based method perform well, however, when theS/N drops close to 1, conventional methods completely fail while DNN's show strong resistance to both artificial and experimental noises.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 16, 2018
2018 journal article
Diffusion of Nanocars on an Air-Glass Interface
JOURNAL OF PHYSICAL CHEMISTRY C, 122(33), 19025–19036.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: October 19, 2018
2018 journal article
Effect of doping Ge into Y2O3:Ho,Yb on the green-to-red emission ratio and temperature sensing
DALTON TRANSACTIONS, 47(32), 11158–11165.
TL;DR:
This study demonstrates a new mechanism to channel non-thermally coupled energy levels to achieve high temperature sensitivity and matched green and red emission intensities, as well as the high thermal sensitivity, in Y2O3:Ho,Yb,Ge.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: October 19, 2018
2018 journal article
Three-Dimensional Heterogeneous Structure Formation on a Supported Lipid Bilayer Disclosed by Single-Particle Tracking
LANGMUIR, 34(39), 11857–11865.
MeSH headings : Diffusion; Hydrogen-Ion Concentration; Lipid Bilayers / chemistry; Nanoparticles / chemistry; Phosphatidylethanolamines / chemistry; Phosphatidylserines / chemistry; Polystyrenes / chemistry; Surface Properties
TL;DR:
This work suggests that the geometry of the 3D lipid structures can play a role in tuning the particle-lipid surface interactions, and sheds new light on the origin of lateral heterogeneity on the lipid membrane.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: October 19, 2018
2018 journal article
Tuning green-to-red ratio of Ho3+/Yb3+ activated GdPO4 upconversion luminescence through Eu3+ doping
JOURNAL OF LUMINESCENCE, 199, 188–193.
author keywords: Rare earth; UC luminescence; Energy transfer; Color chromaticity; Green-to-red intensity ratio
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
Anisotropic Overgrowth of Palladium on Gold Nanorods in the Presence of Salicylic Acid Family Additives
JOURNAL OF PHYSICAL CHEMISTRY C, 121(3), 1876–1883.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
Characteristic rotational behaviors of rod-shaped cargo revealed by automated five-dimensional single particle tracking
Nature Communications, 8(1).
MeSH headings : Biological Transport; Cell Line; Gold / analysis; Humans; Microscopy, Interference / methods; Nanotubes / analysis; Transferrin / analysis; Transferrin / chemistry
TL;DR:
An automated single particle tracking technique for tracking the x, y, z coordinates, azimuthal and elevation angles of anisotropic plasmonic gold nanorod probes in live cells is reported, collectively referred to as 5D.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
14. Life Below Water
(OpenAlex)
Sources: Crossref, NC State University Libraries
Added: August 6, 2018
2017 journal article
Harnessing Hot Electrons from Near IR Light for Hydrogen Production Using Pt-End-Capped-AuNRs
ACS APPLIED MATERIALS & INTERFACES, 9(31), 25962–25969.
author keywords: Pt-end-capped gold nanorods; surface plasmon resonance; hot electrons; photocatalysts; H-2 production
TL;DR:
It is shown that gold nanorods are excellent for converting low-energy photons into high-energy hot electrons, which can be used to drive chemical reactions at their surfaces, and Tuning of the surface plasmon resonance wavelength of AuNRs changes the hydrogen gas production rate, indicating that SPR is involved in hot electron generation and photoreduction of hydrogen ions.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018
2017 journal article
Investigating Diffusing on Highly Curved Water-Oil Interface Using Three-Dimensional Single Particle Tracking
JOURNAL OF PHYSICAL CHEMISTRY C, 121(14), 8023–8032.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
Investigation of NIR-to-red upconversion luminescence mechanism in Y2O3:Er3+, Yb3+ and the effect of co-doping Zn in the matrix
JOURNAL OF LUMINESCENCE, 192, 982–989.
author keywords: Rare earth; Up conversion; Erbium; Energy back transfer
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2017 journal article
Molecular machines open cell membranes
Nature, 548(7669), 567–572.
MeSH headings : Animals; Cell Membrane / chemistry; Cell Membrane / metabolism; Cell Survival; Diffusion; HEK293 Cells; Humans; Infrared Rays; Lipid Bilayers / chemistry; Lipid Bilayers / metabolism; Mice; Molecular Motor Proteins / metabolism; Molecular Motor Proteins / radiation effects; Movement / radiation effects; NIH 3T3 Cells; Nanotechnology; Necrosis; Patch-Clamp Techniques; Photons; Rotation; Ultraviolet Rays
TL;DR:
Molecular machines can drill through cellular bilayers using their molecular-scale actuation, specifically nanomechanical action and it is expected that molecular machines could also be used in vivo, especially as their design progresses to allow two-photon, near-infrared and radio-frequency activation.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Crossref, Web Of Science
Added: August 6, 2018
2016 journal article
Imaging Single Molecular Machines Attached with Two BODIPY Dyes at the Air-Solid Interface: High Probability of Single-Step-Like Photobleaching and Nonscaling Intensity
JOURNAL OF PHYSICAL CHEMISTRY C, 120(46), 26522–26531.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
7. Affordable and Clean Energy
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2016 journal article
Investigating axial diffusion in cylindrical pores using confocal single-particle fluorescence correlation spectroscopy
ELECTROPHORESIS, 37(15-16), 2129–2138.
author keywords: Confined diffusion; Confocal fluorescence microscopy; Cylindrical nanopores; Fluorescence correlation spectroscopy
MeSH headings : Diffusion; Hydrodynamics; Models, Theoretical; Molecular Dynamics Simulation; Nanoparticles / chemistry; Porosity; Spectrometry, Fluorescence / methods
TL;DR:
The feasibility of using confocal fluorescence correlation spectroscopy to study small nanoparticle diffusion in hundred‐nanometer‐sized cylindrical pores is explored and two diffusion dynamics can be observed in both original intensity traces and the autocorrelation functions (ACFs).
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2016 journal article
Microscopic Movement of Slow-Diffusing Nanoparticles in Cylindrical Nanopores Studied with Three-Dimensional Tracking
ANALYTICAL CHEMISTRY, 88(10), 5122–5130.
TL;DR:
This study shows that it is possible to differentiate slow diffusion in confined environments caused by different mechanisms, and that the particles in sticky pores are microscopically active by showing limited reduction of step sizes.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2016 journal article
Moving Kinetics of Nanocars with Hydrophobic Wheels on Solid Surfaces at Ambient Conditions
JOURNAL OF PHYSICAL CHEMISTRY C, 120(20), 10887–10894.
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2016 journal article
Nanosecond Time-Resolution Study of Gold Nanorod Rotation at the Liquid-Solid Interface
CHEMPHYSCHEM, 17(14), 2218–2224.
author keywords: adsorption; fluctuation correlation spectroscopy; gold nanorods; rotation; surface plasmon resonance
TL;DR:
This nanosecond time-resolution study reveals that the apparent continuous rotation of gold nanorods actually consists of numerous fast, intermittent rotations or transitions between a small number of weakly immobilized states, with the particle resting in the immobilization states most of the time.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
16. Peace, Justice and Strong Institutions
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2016 journal article
New dinuclear ruthenium arene complexes containing thiosemicarbazone ligands: synthesis, structure and cytotoxic studies
DALTON TRANSACTIONS, 45(48), 19329–19340.
MeSH headings : Cell Line, Tumor; Coordination Complexes / chemistry; Coordination Complexes / pharmacology; Crystallography, X-Ray; Drug Screening Assays, Antitumor; Humans; Hydrocarbons / chemistry; Ligands; Molecular Structure; Ruthenium Compounds / chemistry; Thiosemicarbazones / chemistry
TL;DR:
A series of mononuclear ruthenium arene complexes with thiosemicarbazone (TSC) ligands and their corresponding di-nuclear analogues were synthesized and characterized by NMR, elemental analysis and HR-ESI-mass spectrometry.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
A dual wavelength-activatable gold nanorod complex for synergistic cancer treatment
NANOSCALE, 7(28), 12096–12103.
Contributors: D. Pacardo n, B. Neupane n, S. Rikard n, Y. Lu n, R. Mo n, S. Mishra n, J. Tracy n , n, F. Ligler n, Z. Gu n
MeSH headings : Antineoplastic Agents / chemistry; Antineoplastic Agents / pharmacology; Drug Screening Assays, Antitumor; Gold / chemistry; Gold / pharmacology; HeLa Cells; Humans; Infrared Rays; Nanotubes / chemistry; Neoplasms / drug therapy; Photochemotherapy
TL;DR:
This multifunctional AuNR-based system represents a novel theranostic strategy for spatiotemporal delivery of anticancer therapeutics and demonstrates enhanced anticancer efficacy through the synergistic combination of promoted drug release upon ultraviolet (UV) light irradiation and photothermal therapy upon infrared (IR) irradiation.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science; OpenAlex)
Sources: Web Of Science, ORCID
Added: August 6, 2018
2015 journal article
A temperature microsensor for measuring laser-induced heating in gold nanorods
ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 407(3), 719–725.
author keywords: Microsensor; Gold nanorods; Temperature; Nanoparticles; Microfluidics
MeSH headings : Chemistry Techniques, Analytical / instrumentation; Chemistry Techniques, Analytical / methods; Equipment Design; Gold; Heating; Hot Temperature; Lasers; Microtechnology; Nanotubes / analysis
TL;DR:
The results demonstrate the suitability of this simple temperature microsensor for determining laser-induced heating profiles of metallic nanomaterials; such measurements will be essential for optimizing therapeutic and catalytic applications.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
An exonuclease I-based label-free fluorometric aptasensor for adenosine triphosphate (ATP) detection with a wide concentration range
BIOSENSORS & BIOELECTRONICS, 63, 311–316.
author keywords: Aptasensor; ATP; Fluorescence; Label-free; Enzyme catalysis
MeSH headings : Adenosine Triphosphate / chemistry; Adenosine Triphosphate / isolation & purification; Aptamers, Nucleotide / chemistry; Berberine / chemistry; Biosensing Techniques; Exodeoxyribonucleases / chemistry; Fluorescence; Fluorometry; G-Quadruplexes; Limit of Detection
TL;DR:
A novel aptamer-based label-free assay for sensitive and selective detection of ATP using a new aptamer/fluorescent probe system that shows resistance to exonuclease I (Exo I) digestion upon binding to ATP molecules.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
6. Clean Water and Sanitation
(OpenAlex)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
Continuous-wave stimulated emission depletion microscope for imaging actin cytoskeleton in fixed and live cells
Sensors (Basel, Switzerland), 15(9), 24178–24190.
Source: NC State University Libraries
Added: August 6, 2018
2015 journal article
Unimolecular Submersible Nanomachines. Synthesis, Actuation, and Monitoring
NANO LETTERS, 15(12), 8229–8239.
author keywords: Unimolecular submersible nanomachines; light-driven motor; diffusion coefficient; fluorophores
MeSH headings : Fluorescent Dyes; Nanotechnology; Spectrometry, Fluorescence / methods; Ultraviolet Rays
TL;DR:
Through careful design of control molecules with no motor and with a slow motor, it is found using single molecule fluorescence correlation spectroscopy that only the molecules with fast rotating speed show an enhancement in diffusion by 26% when the motor is fully activated by UV light.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2015 journal article
beta-Cyclodextrin functionalized Mn-doped ZnS quantum dots for the chiral sensing of tryptophan enantiomers
POLYMER CHEMISTRY, 6(4), 591–598.
TL;DR:
A photoluminescence chiral-assay for tryptophan enantiomers was developed and it was found that L-Tryptophan can be detected in the presence of its stereoisomer with a detection limit of 5.4 nM in a linear range of 0–6.0 μM.
(via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018
2014 review
Review of recent developments in stimulated emission depletion microscopy: Applications on cell imaging
[Review of ]. Journal of Biomedical Optics, 19(8).
Source: NC State University Libraries
Added: August 6, 2018
2013 journal article
Simultaneous Single-Particle Superlocalization and Rotational Tracking
ACS NANO, 7(2), 1658–1665.
author keywords: imaging; microscopy; superlocalization; gold nanorods; rotational tracking; kinesin
MeSH headings : Animals; Cell Survival; Endocytosis; Gold / chemistry; Gold / metabolism; Metal Nanoparticles / chemistry; Microscopy; Optical Phenomena; PC12 Cells; Particle Size; Rats; Rotation; Time Factors
TL;DR:
The new technique overcomes the difficulty in localization of the antisymmetric DIC point spread function by using a dual-modality microscope configuration for simultaneous rotational tracking and localization of single gold nanorods with nanometer-scale precision.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2013 review
Single Cell Optical Imaging and Spectroscopy
[Review of ]. CHEMICAL REVIEWS, 113(4), 2469–2527.
MeSH headings : Apoptosis / physiology; Fluorescence Resonance Energy Transfer; Fluorescent Dyes / chemistry; Lipid Metabolism / physiology; Microscopy, Confocal; Microscopy, Fluorescence, Multiphoton / instrumentation; Microscopy, Fluorescence, Multiphoton / methods; Microscopy, Interference; Mitosis / physiology; Nanoparticles / chemistry; Optical Imaging / instrumentation; Optical Imaging / methods; Plant Cells / pathology; Single-Cell Analysis
TL;DR:
A review of the key advances that have occurred in the past several years in the field of single cell optical imaging to highlight the types of findings that are possible at the nexus of microscopy, nanoprobes, and live cells.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2013 journal article
Tuning donut profile for spatial resolution in stimulated emission depletion microscopy
Review of Scientific Instruments, 84(4), 043701.
MeSH headings : Microscopy, Polarization / instrumentation; Microscopy, Polarization / methods; Models, Theoretical; Optics and Photonics / instrumentation; Optics and Photonics / methods
TL;DR:
This study investigates the transformation of the donut-shaped depletion beam focused by a high numerical aperture microscope objective, and model STED point spread function (PSF) as a function of donut beam profile, and derives the mathematical expression for continuous wave (CW) STED PSF as a functions of focal plane donut and excitation beam profiles, as well as dye properties.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Sources: Crossref, NC State University Libraries
Added: August 6, 2018
2013 journal article
Up-Conversion Luminescence of Gold Nanospheres When Excited at Nonsurface Plasmon Resonance Wavelength by a Continuous Wave Laser
NANO LETTERS, 13(9), 4087–4092.
author keywords: Up conversion; photoluminescence; gold nanospheres; gold nanorods; surface plasmon resonance (SPR); interband transition
MeSH headings : Gold / chemistry; Lasers; Luminescence; Molecular Imaging; Nanoparticles; Nanospheres / chemistry; Surface Plasmon Resonance
TL;DR:
It is shown that, when gold nanospheres are excited at the red side of the surface plasmon resonance (SPR) wavelength at 592 nm by a continuous wave (CW) laser, they give substantial up-converted luminescence in the SPR wavelength range.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2012 journal article
Deciphering Orientation and Rotational Information of Cargoes at Pauses During Axonal Transport
Biophysical Journal, 102(3), 38a–39a.
TL;DR:
The lateral and rotational motions of cargos during directional transport and pausing stages are elucidated, and their relationship with motor protein competition and regulation is discussed.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2012 conference paper
Detecting and tracking nonfluorescent nanoparticle probes in live cells
Imaging and spectroscopic analysis of living cells: optical and spectroscopic techniques, 504, 83–108.
Source: NC State University Libraries
Added: August 6, 2018
2012 journal article
Determining the Full Three-Dimensional Orientation of Single Anisotropic Nanoparticles by Differential Interference Contrast Microscopy
Angewandte Chemie International Edition, 51(31), 7734–7738.
author keywords: gold; microscopy; nanorods; rotational tracking; single-particle tracking
MeSH headings : Anisotropy; Gold / analysis; Metal Nanoparticles / analysis; Microscopy, Phase-Contrast; Particle Size
TL;DR:
By combining differential interference contrast (DIC) image pattern recognition with DIC polarization anisotropy, the exact full three-dimensional angular information of individual tilted gold nanorods positioned in the focal plane of the objective lens can be readily determined.
(via Semantic Scholar)
Source: Crossref
Added: August 14, 2021
2012 journal article
Electrophoretic Migration and Axial Diffusion of Individual Nanoparticles in Cylindrical Nanopores
The Journal of Physical Chemistry C, 116(34), 18460–18468.
TL;DR:
The electrophoretic mobilities and the diffusion coefficients of polystyrene nanoparticles were both substantially smaller compared to bulk solution independent of particle size or pore diameter, implying that the apparent solution viscosity in nanodomains is anomalous.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2012 journal article
Influence of Polarization Setting on Gold Nanorod Signal at Nonplasmonic Wavelengths Under Differential Interference Contrast Microscopy
ANALYTICAL CHEMISTRY, 84(12), 5210–5215.
TL;DR:
The nonplasmonic diffraction bands that were observed could potentially be exploited for rotational tracking, but more importantly, researchers should exhibit care in selecting a nanorod sample and the polarization setting when working with DIC microscopy.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: Web Of Science
Added: August 6, 2018
2012 journal article
Revealing Rotational Modes of Functionalized Gold Nanorods on Live Cell Membranes
Small, 9(5), 785–792.
author keywords: rotational dynamics; single particle tracking; correlation analysis; rotational modes; gold nanorods
MeSH headings : Cell Membrane; Gold / chemistry; Nanotechnology; Nanotubes / chemistry
TL;DR:
The single particle orientation and rotational tracking (SPORT) technique is combined here with correlation analysis to identify the fundamental rotational modes: in-plane rotation and out-of-plane tilting, from the vast image data captured at a temporal resolution of 5 ms for single gold nanorod probes in live cell imaging experiments.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2012 journal article
Rotational dynamics of cargos at pauses during axonal transport
Nature Communications, 3(1).
MeSH headings : Animals; Axonal Transport; Axons / chemistry; Axons / metabolism; Biological Transport, Active; Dyneins / metabolism; Endocytosis; Kinesins / metabolism; PC12 Cells; Rats; Rotation
TL;DR:
First-time observations of cargo's rotational dynamics provide new insights on how kinesin and dynein motors take the cargo through the alternating stages of active directional transport and pause, with a temporal resolution of 2 ms.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2012 journal article
Three-dimensional super-localization and tracking of single gold nanoparticles in cells
Analytical Chemistry, 84(9), 4111–4117.
MeSH headings : Algorithms; Cell Survival; Endocytosis; Gold / analysis; HeLa Cells; Humans; Imaging, Three-Dimensional / methods; Microscopy, Interference / methods; Nanoparticles / analysis
TL;DR:
The 3D superlocalization method was applied to tracking gold nanospheres during live endocytosis events and demonstrated the localization precision of 4-7 nm laterally and 16 nm axially for 40-nm gold Nanospheres at an imaging rate of 10 frames per second.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(Web of Science)
Source: NC State University Libraries
Added: August 6, 2018
2011 journal article
Detection of the Potential Pancreatic Cancer Marker MUC4 in Serum Using Surface-Enhanced Raman Scattering
Analytical Chemistry, 83(7), 2554–2561.
MeSH headings : Animals; Biomarkers, Tumor / blood; Blood Chemical Analysis / methods; Blood Chemical Analysis / standards; Cell Extracts; Cell Line, Tumor; Enzyme-Linked Immunosorbent Assay; Humans; Limit of Detection; Mucin-4 / blood; Pancreatic Neoplasms / blood; Reference Standards; Spectrum Analysis, Raman / methods; Spectrum Analysis, Raman / standards; Surface Properties
TL;DR:
Results indicate that a SERS-based immunoassay can monitor MUC4 levels in patient sera, representing a much needed first step toward assessing the potential of this protein to serve as a serum marker for the early stage diagnosis of PC.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: Crossref
Added: May 1, 2022
2011 journal article
Differential interference contrast polarization anisotropy for tracking rotational dynamics of gold nanorods
Chemical Communications, 47(27), 7743.
MeSH headings : Anisotropy; Gold / chemistry; Kinesins / ultrastructure; Microscopy, Interference / methods; Microtubules / ultrastructure; Nanotubes / analysis; Nanotubes / ultrastructure
TL;DR:
DIC polarization anisotropy enabled us to reveal the unidirectional clockwise circular translocation of an AuNR attached to a kinesin-driven microtubule and to precisely determine the real-time orientation of the AuNR during the dynamic process.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2011 journal article
Dual-Modality Single Particle Orientation and Rotational Tracking of Intracellular Transport of Nanocargos
Analytical Chemistry, 84(2), 1134–1138.
MeSH headings : Biological Transport; Diffusion; Gold / chemistry; Humans; Lung Neoplasms / pathology; Microscopy, Fluorescence; Microscopy, Interference; Microtubules / ultrastructure; Molecular Probes / chemistry; Nanotechnology; Nanotubes / analysis; Nanotubes / ultrastructure
TL;DR:
A dual-modality SPORT technique is demonstrated for shedding new light on unresolved questions in intracellular transport and can be unambiguously identified while the dynamic orientation of nanometer-sized cargos can be monitored at video rate.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2011 journal article
Rotational Motions of Endocytic Cargos Revealed by Single Particle Orientation and Rotation Tracking (Sport)
Biophysical Journal, 100(3), 405a–406a.
TL;DR:
An integrated imaging platform based on the combination of birefringent gold nanorod probes and differential interference contrast (DIC) microscopy that can achieve single particle orientation and rotation tracking (SPORT).
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2011 journal article
Single Particle Orientation and Rotation Tracking Discloses Distinctive Rotational Dynamics of Drug Delivery Vectors on Live Cell Membranes
Journal of the American Chemical Society, 133(15), 5720–5723.
MeSH headings : Cell Line, Tumor; Cell Membrane / metabolism; Drug Carriers / chemistry; Drug Carriers / metabolism; Gold / chemistry; Humans; Nanotubes / chemistry
TL;DR:
The study of rotational brownian motion of nanoparticles on cell membranes will lead to a better understanding of the mechanisms of drug delivery and provide guidance in designing surface modification strategies for drug delivery vectors under various circumstances.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: Crossref
Added: May 1, 2022
2011 journal article
Superlocalization of Single Molecules and Nanoparticles in High-Fidelity Optical Imaging Microfluidic Devices
Analytical Chemistry, 83(13), 5073–5077.
MeSH headings : Dimethylpolysiloxanes / chemistry; Microfluidics / instrumentation; Nanoparticles
TL;DR:
The high-fidelity (Hi-Fi) optical imaging microfluidic device was validated by precisely mapping micronecklaces made of fluorescent microtubules and 40 nm gold nanoparticles and by demonstrating the activation and excitation cycles of single Alexa Fluor 647 dyes for direct stochastic optical reconstruction microscopy in PDMS-based microchannels for the first time.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2011 journal article
Understanding Nanoparticle Drug Delivery from Rotational Dynamics and Behaviors of Functionalized Gold Nanorods on Live Cell Membranes
Biophysical Journal, 100(3), 473a.
TL;DR:
This study of nanoparticle rotational diffusion on cell membranes will lead to better understanding of the mechanisms of drug delivery and provide guidance in designing the modification strategies for drug delivery agents under different circumstances.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
3. Good Health and Well-being
(OpenAlex)
Source: Crossref
Added: May 1, 2022
2011 journal article
Whole-Cell Scan Using Automatic Variable-Angle and Variable-Illumination-Depth Pseudo–Total Internal Reflection Fluorescence Microscopy
Journal of Laboratory Automation, 16(4), 255–262.
MeSH headings : Calibration; Cell Line, Tumor; Cell Nucleus / ultrastructure; Equipment Design; Extracellular Space; Histocytological Preparation Techniques; Humans; Microscopy, Fluorescence / instrumentation; Microscopy, Fluorescence / methods; Microscopy, Fluorescence / standards; User-Computer Interface
TL;DR:
An automatic calibration and angle-scanning prism-type total internal reflection fluorescence microscope was modified to function in both TIRFM and pseudo-TIRFM modes.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2010 journal article
Autocalibrated Scanning-Angle Prism-Type Total Internal Reflection Fluorescence Microscopy for Nanometer-Precision Axial Position Determination
Analytical Chemistry, 82(6), 2441–2447.
MeSH headings : Calibration; Equipment Design; Microscopy, Fluorescence / instrumentation; Microscopy, Fluorescence / methods; Microtubules / ultrastructure; Surface Plasmon Resonance
TL;DR:
An automatic calibration and scanning-angle prism-type total internal reflection fluorescence microscope (TIRFM) was constructed and tested for the highest vertical resolution and demonstrated to be better than 10 nm under the rigorous statistical analysis of confidence levels and by the Monte Carlo simulation.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2010 journal article
Influence of Gold Nanorod Geometry on Optical Response
ACS Nano, 4(12), 7667–7675.
author keywords: surface plasmon resonance; gold nanorod; diffraction limit; dark field microscopy; differential interference contrast (DIC) microscopy; multipole
TL;DR:
The optical response of three important gold nanorod configurations under dark field and differential interference contrast (DIC) microscopy after first establishing their absolute geometries with transmission electron microscopy (TEM).
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2010 journal article
Optical imaging of non-fluorescent nanoparticleprobes in live cells
The Analyst, 135(2), 215–221.
MeSH headings : Animals; Cells / ultrastructure; Diagnostic Imaging; Humans; Molecular Probes; Nanoparticles / analysis
TL;DR:
An overview of recent developments in the optical imaging of non-fluorescent nanoparticle probes in live cells is provided.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2010 journal article
Resolving Rotational Motions of Nano-objects in Engineered Environments and Live Cells with Gold Nanorods and Differential Interference Contrast Microscopy
Journal of the American Chemical Society, 132(46), 16417–16422.
MeSH headings : Biological Transport; Gold / chemistry; Microscopy, Interference; Models, Biological; Molecular Motor Proteins / physiology; Molecular Probes / chemistry; Nanotubes / chemistry
TL;DR:
By using the combination of gold nanorod probes and DIC microscopy, this work is able to resolve rotational motions of nano-cargos transported by motor proteins at video rate not only on engineered surfaces but also on cytoskeleton tracks in live cells.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2010 journal article
Wavelength-Dependent Differential Interference Contrast Microscopy: Multiplexing Detection Using Nonfluorescent Nanoparticles
Analytical Chemistry, 82(15), 6675–6679.
MeSH headings : Cell Line, Tumor; Cell Membrane / chemistry; Cell Membrane / ultrastructure; Gold / chemistry; Humans; Microscopy, Interference / methods; Nanoparticles / chemistry; Silver / chemistry
TL;DR:
The suitability of multiplexing detection in DIC microscopy was investigated systematically with 19 kinds of nanoparticles of different materials and/or sizes, and a unique DIC contrast spectrum was found for each kind of nanoparticle.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2009 journal article
Control of Antigen Mass Transport via Capture Substrate Rotation: Binding Kinetics and Implications on Immunoassay Speed and Detection Limits
Analytical Chemistry, 81(15), 6175–6185.
MeSH headings : Animals; Antibodies, Monoclonal / immunology; Antibodies, Viral / immunology; Antigens, Viral / analysis; Computer Simulation; Gold / chemistry; Immunoassay; Kinetics; Limit of Detection; Metal Nanoparticles / chemistry; Parvovirus, Porcine / immunology; Parvovirus, Porcine / isolation & purification; Protein Binding / immunology; Swine
TL;DR:
By vigorously rotating the substrate, the binding of antigens reaches a regime of intermediate binding kinetics, for which mass transport is comparable to the reaction rate, and the limit of detection achievable on a practical time scale is investigated.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2009 journal article
Mixed Monolayers on Gold Nanoparticle Labels for Multiplexed Surface-Enhanced Raman Scattering Based Immunoassays
Analytical Chemistry, 81(23), 9643–9650.
MeSH headings : Animals; Antibodies / immunology; Antibodies / metabolism; Antibody Specificity; Cattle; Gold / chemistry; Gold / metabolism; Humans; Immunoassay / methods; Metal Nanoparticles / chemistry; Mice; Spectrum Analysis, Raman; Staining and Labeling; Sulfhydryl Compounds / chemistry; Surface Properties
TL;DR:
The work herein not only describes the new pathway for ERL production, but also demonstrates the simultaneous qualitative and quantitative multiplexed detection using a set of four mixed-monolayer ERLs.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2009 journal article
Wavelength-Dependent Differential Interference Contrast Microscopy: Selectively Imaging Nanoparticle Probes in Live Cells
Analytical Chemistry, 81(22), 9203–9208.
MeSH headings : Gold / analysis; HeLa Cells; Humans; Metal Nanoparticles / analysis; Microscopy, Interference / methods; Peptide Fragments / chemistry; Silver / analysis; tat Gene Products, Human Immunodeficiency Virus / chemistry
TL;DR:
It is demonstrated that gold/silver nanoparticles immobilized on the same glass slides through hybridization can be differentiated and imaged separately, providing definitive probe identification in high-contrast, video-rate images of living cells.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2008 journal article
SERS as a bioassay platform: fundamentals, design, and applications
Chemical Society Reviews, 37(5), 1001.
MeSH headings : Animals; Bacteria / chemistry; Fluorescent Dyes / chemistry; Humans; Immunoassay; Metal Nanoparticles / chemistry; Proteins / analysis; Spectrum Analysis, Raman / instrumentation; Spectrum Analysis, Raman / methods; Viruses / chemistry
TL;DR:
This tutorial review outlines the recent explorations on the use of surface enhanced Raman scattering (SERS) for detection of proteins, viruses, and microorganisms in heterogeneous immunoassays, and details the design and fabrication of the assay platform, including the capture substrate and nanoparticle-based labels.
(via Semantic Scholar)
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation
(OpenAlex)
Source: Crossref
Added: May 1, 2022
2006 journal article
Analysis of heterogeneous fluorescence decays in proteins. Using fluorescence lifetime of 8-anilino-1-naphthalenesulfonate to probe apomyoglobin unfolding at equilibrium
Biochimica Et Biophysica Acta (BBA) - General Subjects, 1760(7), 1125–1137.
author keywords: fluorescence lifetime; nonlinear least squares; maximum entropy method; 1,8-ANS; apomyoglobin; folding intermediates
MeSH headings : Anilino Naphthalenesulfonates / pharmacology; Animals; Apoproteins / chemistry; Entropy; Horses; Hydrogen-Ion Concentration; Kinetics; Models, Chemical; Models, Statistical; Muscle, Skeletal / metabolism; Myoglobin / chemistry; Protein Conformation; Protein Denaturation; Protein Folding; Spectrometry, Fluorescence / methods; Spectrophotometry
TL;DR:
The fluorescence decay of ANS complexed with apomyoglobin at different conformations denatured by pH is modeled and contains information on not only apomyobic structure but also molecular populational distributions.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2006 journal article
Generalized Two-Dimensional Heterocorrelation Analysis of Spectrally Resolved and Temporally Resolved Fluorescence of the 8-Anilino-1-naphthalenesulfonate−Apomyoglobin Complex with pH Perturbation
The Journal of Physical Chemistry B, 110(16), 8506–8512.
MeSH headings : Algorithms; Anilino Naphthalenesulfonates / chemistry; Animals; Apoproteins / chemistry; Fluorescence; Horses; Hydrogen-Ion Concentration; Models, Molecular; Molecular Conformation; Myoglobin / chemistry
TL;DR:
Two-dimensional heterocorrelation analysis between spectrally resolved and temporally resolved fluorescence is demonstrated to investigate the decay dynamics of the 8-anilino-1-naphthalenesulfonate- (ANS-) apomyoglobin complex and conclusions are reached without the necessity of statistical fitting of the decay data with an a priori decay model.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2006 journal article
Probing strong adsorption of individual solute molecules at solid/liquid interfaces with model-based statistical two-dimensional correlation analysis
Journal of Molecular Structure, 799(1-3), 204–210.
author keywords: single-molecule spectroscopy; adsorption; model-based 2D correlation; correlation coefficient map
Source: Crossref
Added: May 1, 2022
2006 journal article
Statistical two-dimensional correlation coefficient mapping of simulated tissue phantom data: Boundary determination in tissue classification for cancer diagnosis
Journal of Molecular Structure, 799(1-3), 239–246.
author keywords: cancer diagnosis; fluorescence; correlation coefficient mapping; Bayes decision theory; fisher's z-transformation
TL;DR:
Boundaries of statistical significance between different tissue pathological conditions are established through Bayesian analysis on the Fisher's z-transformed Pearson’s correlation coefficients between tissue samples.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2006 journal article
Two-dimensional correlation coefficient mapping in gas chromatography: Jet fuel classification for environmental analysis
Journal of Molecular Structure, 799(1-3), 247–252.
author keywords: correlation coefficient mapping; jet fuel; sample classification; environmental analysis
Source: Crossref
Added: May 1, 2022
2006 journal article
Unfolding of apomyoglobin studied with two-dimensional correlations of tryptophan, 8-anilino-1-naphthalenesulfonate, and pyrene fluorescence
Journal of Molecular Structure, 799(1-3), 177–187.
author keywords: apomyoglobin; folding intermediates; fluorescence; 1,8-ANS; pyrene; correlation coefficient mapping; 2D hetero-spectral correlation; folding pathway
TL;DR:
Two anion-induced refolding intermediates of apomyoglobin: Cl − -induced A-1, and trichloroacetate (TCA)-induced I-2 do not follow the correlation trajectory in the acid-induced unfolding, which suggests that the two an ion-induced intermediates do not belong to the low-salt acid-unfolding pathway of Apomyoglobin.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2005 journal article
Direct observation of frits and dynamic air bubble formation in capillary electrochromatography using confocal fluorescence microscopy
Journal of Chromatography A, 1062(2), 275–283.
author keywords: confocal fluorescence microscopy; capillary electrochromatography; frits; bubble formation
MeSH headings : Chromatography, Micellar Electrokinetic Capillary / instrumentation; Chromatography, Micellar Electrokinetic Capillary / methods; Microscopy, Confocal / methods; Microscopy, Fluorescence / methods
TL;DR:
Air bubble formation is imaged during the reorganization process of the packing bed and is shown to occur close to the border between the packingBed and the outlet frit, opening a new avenue in studying dynamic processes in situ in CEC separations.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2005 journal article
Probing Strong Adsorption of Solute onto C18-Silica Gel by Fluorescence Correlation Imaging and Single-Molecule Spectroscopy under RPLC Conditions
Analytical Chemistry, 77(8), 2303–2310.
MeSH headings : Acetonitriles / chemistry; Adsorption; Chromatography, Liquid / methods; Fluorescence; Image Processing, Computer-Assisted; Lasers; Microscopy, Confocal; Rhodamines / chemistry; Silica Gel; Silicon Dioxide / chemistry; Spectrum Analysis / methods
TL;DR:
The experiments show that cationic molecule rhodamine 6G laterally diffuses through the chromatographic interface of a C(18) hydrocarbon monolayer and acetonitrile with occasional reversible strong adsorptions.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
2005 journal article
Statistical and Generalized Two-Dimensional Correlation Spectroscopy of Multiple Ionization States. Fluorescence of Neurotransmitter Serotonin
Analytical Chemistry, 77(1), 20–29.
MeSH headings : Fluorescence; Hydrogen-Ion Concentration; Serotonin / analysis; Spectrometry, Fluorescence / methods; Statistics as Topic
TL;DR:
Fluorescence spectra of neurotransmitter serotonin are analyzed with generalized and statistical two-dimensional correlation spectroscopy and reveal correlations between spectral variables and demonstrate enhanced sensitivity in detecting the dynamic spectral changes over conventional one-dimensionalSpectroscopy.
(via Semantic Scholar)
Source: Crossref
Added: May 1, 2022
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