Works Published in 2009

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Displaying works 61 - 80 of 96 in total

Sorted by most recent date added to the index first, which may not be the same as publication date order.

2009 journal article

Optical tracking of acoustic radiation force impulse-induced dynamics in a tissue-mimicking phantom

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 126(5), 2733–2745.

MeSH headings : Artifacts; Elastic Tissue / diagnostic imaging; Elasticity; Gelatin; Microscopy, Acoustic / instrumentation; Microspheres; Models, Biological; Phantoms, Imaging; Transducers; Ultrasonics
TL;DR: Optical tracking was utilized to investigate the acoustic radiation force impulse (ARFI)-induced response, generated by a 5-MHz piston transducer, in a translucent tissue-mimicking phantom, and provided high-frame-rate, two-dimensional tracking data that could prove useful in the investigation of complex ARFI-induced dynamics in controlled experimental settings. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Simultaneous Decoupled Detection of Dopamine and Oxygen Using Pyrolyzed Carbon Microarrays and Fast-Scan Cyclic Voltammetry

ANALYTICAL CHEMISTRY, 81(15), 6258–6265.

MeSH headings : Animals; Biosensing Techniques; Brain / metabolism; Carbon / chemistry; Dopamine / analysis; Electrochemistry / instrumentation; Microarray Analysis; Microelectrodes; Oxygen / analysis; Rats; Spectrum Analysis, Raman
TL;DR: The work described in this paper utilizes microfabrication processes to produce devices that enable multiple fast-scan cyclic voltammetry (FSCV) waveforms to be applied to different electrodes on a single substrate, enabling the simultaneous, decoupled detection of dopamine and oxygen. (via Semantic Scholar)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2009 journal article

Modulation of collagen gel compaction by extracellular ATP is MAPK and NF-kappa B pathways dependent

EXPERIMENTAL CELL RESEARCH, 315(11), 1990–2000.

author keywords: ATP; Collagen gel; P2 receptor; bone; NF-kappa B; MAPK; Prestress
MeSH headings : 3T3 Cells; Adenosine Triphosphate / metabolism; Adenosine Triphosphate / pharmacology; Adenylyl Cyclases / metabolism; Animals; Base Sequence; Calmodulin / metabolism; Collagen / genetics; Collagen / metabolism; DNA Primers / genetics; Extracellular Fluid / metabolism; Gels; Gene Expression / drug effects; Kinetics; MAP Kinase Signaling System; Mechanotransduction, Cellular; Mice; Models, Biological; Myosin-Light-Chain Kinase / metabolism; NF-kappa B / metabolism; Osteoblasts / cytology; Osteoblasts / drug effects; Osteoblasts / metabolism; Phosphatidylinositol 3-Kinases / metabolism; Receptors, Purinergic P2 / metabolism; Stress, Mechanical
TL;DR: The results from the present and previous studies indicate that extracellular ATP may act as a negative feedback modulator in the mechanotransduction system since mechanical stimuli increase ATP release from stimulated cells. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Microfabricated curtains for controlled cell seeding in high throughput microfluidic systems

LAB ON A CHIP, 9(12), 1756–1762.

By: . Adrian T. O'Neill n, N. Monteiro-Riviere n & G. Walker n

MeSH headings : Cell Culture Techniques / instrumentation; Cell Movement; Cell Proliferation; Cell Survival / drug effects; Collagen / metabolism; Cytotoxins / toxicity; Dimethylpolysiloxanes; Humans; Keratinocytes / cytology; Keratinocytes / drug effects; Microfluidic Analytical Techniques / instrumentation; Nylons; Skin / cytology; Time Factors
TL;DR: Curtain use permitted high initial cell seeding densities and increased the amount of time cells can be cultured compared to multi-well plates and showed that cells exposed to 6% ethanol or less grew in population size, 8% ethanol exposure stunted growth, and higher concentrations led to population loss. (via Semantic Scholar)
UN Sustainable Development Goal Categories
2. Zero Hunger (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Comparison of diffraction-enhanced computed tomography and monochromatic synchrotron radiation computed tomography of human trabecular bone

PHYSICS IN MEDICINE AND BIOLOGY, 54(20), 6123–6133.

MeSH headings : Absorption; Bone and Bones / diagnostic imaging; Bone and Bones / pathology; Equipment Design; Humans; Normal Distribution; Radiographic Image Interpretation, Computer-Assisted / methods; Scattering, Radiation; Silicon; Synchrotrons; Tibia / diagnostic imaging; Tibia / pathology; Tomography, X-Ray Computed / methods; X-Rays
TL;DR: The apparent absorption DECT images have significantly higher spatial resolution and CNR than the corresponding SRCT images, and will prove to be a useful tool for imaging applications in which high contrast and high spatial resolution are required for both soft tissue features and bone. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Microbubble tunneling in gel phantoms

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 125(5), EL183–EL189.

MeSH headings : Elastic Modulus; Microbubbles; Phantoms, Imaging; Ultrasonics; Ultrasonography
TL;DR: In this study, tunnel formulation occurred in the direction of the propagating ultrasound wave, where radiation pressure directed the contact of the bubble and gel, facilitating the activity of the liquid jets. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Improved Dynamic Cardiac Phantom Based on 4D NURBS and Tagged MRI

IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 56(5), 2728–2738.

By: W. Segars*, D. Lalush n, E. Frey*, D. Manocha*, M. King* & B. Tsui*

author keywords: Cardiac; medical imaging; phantom; simulation
TL;DR: The new cardiac model was incorporated into the 4D NURBS-based Cardiac-Torso (NCAT) phantom widely used in imaging research and will provide a useful tool in the study of cardiac imaging and the effects of cardiac motion in medical images. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Functionalized Polypyrrole Film: Synthesis, Characterization, and Potential Applications in Chemical and Biological Sensors

ACS APPLIED MATERIALS & INTERFACES, 1(7), 1599–1606.

author keywords: functionalized polypyrrole film; chemical and biological sensors; permeability and permselectivity; matrix for biomolecule immobilization; fluorescence quenching; electrochemical polymerization
MeSH headings : Biosensing Techniques; Electrochemistry / methods; Microscopy, Atomic Force / methods; Microscopy, Confocal / methods; Microscopy, Electron, Scanning / methods; Microscopy, Fluorescence / methods; Models, Chemical; Organic Chemicals / chemistry; Polymers / chemistry; Pyrroles / chemistry; Spectrometry, Fluorescence / methods; Spectrophotometry, Ultraviolet / methods; Spectroscopy, Fourier Transform Infrared / methods; Spectrum Analysis, Raman / methods
TL;DR: The experimental data show that the as-prepared PPPA film exhibits a hydrophilic nanoporous structure, abundant -COOH functional groups in the polymer backbone, and high fluorescent emission under laser excitation. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 article

Composite Tissue Engineering on Polycaprolactone Nanofiber Scaffolds

Reed, C. R., Han, L., Andrady, A., Caballero, M., Jack, M. C., Collins, J. B., … Aalst, J. A. (2009, May). ANNALS OF PLASTIC SURGERY, Vol. 62, pp. 505–512.

By: C. Reed*, L. Han*, A. Andrady*, M. Caballero*, M. Jack*, J. Collins*, S. Saba*, E. Loboa n, B. Cairns*, J. Aalst*

author keywords: nanofiber scaffolds; nanotechnology; composite tissue engineering; keratinocytes; fibroblasts; osteoinduction; fat-derived stem cells; periosteum; periosteal cells
MeSH headings : Adult Stem Cells / cytology; Animals; Biocompatible Materials; Cell Survival; Female; Fibroblasts / cytology; Foreskin / cytology; Humans; Keratinocytes / cytology; Male; Mice; Mice, Inbred C57BL; Nanostructures; Osteogenesis; Periosteum / cytology; Periosteum / growth & development; Polyesters; Plastic Surgery Procedures / methods; Tissue Culture Techniques; Tissue Engineering / methods; Tissue Scaffolds
TL;DR: This work represents initial efforts to create the building blocks for composite tissue reflecting the basic unit of healing, though the major obstacles to the trilaminar construct are maintaining an appropriate interface between the tissue types and neovascularization of the composite structure. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Versatile Horizontal Force Probe for Mechanical Tests on Pipette-Held Cells, Particles, and Membrane Capsules

BIOPHYSICAL JOURNAL, 96(3), 1218–1231.

MeSH headings : Biomechanical Phenomena; Cell Membrane / metabolism; DNA / metabolism; Erythrocytes / cytology; Erythrocytes / metabolism; Humans; Lipids / isolation & purification; Microbubbles; Molecular Probe Techniques / instrumentation; Nanotechnology / instrumentation; Oligodeoxyribonucleotides / metabolism; Optical Phenomena; Sensitivity and Specificity; Surface-Active Agents
TL;DR: A multipurpose nanomechanical force probe that combines a sideways-mounted elastic cantilever and an optical-lever detection module with automated micropipette manipulation withvantages in example measurements of single-cell compression, membrane-tether extrusion, oligonucleotide stretching, and extraction of individual lipids from surfactant-monolayer surfaces of microbubbles. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Thin film epitaxy and structure property correlations for non-polar ZnO films

ACTA MATERIALIA, 57(15), 4426–4431.

By: P. Pant n, J. Budai*, R. Aggarwal n, R. Narayan n & J. Narayan n

author keywords: Diffraction; Pulsed laser deposition; Strain; ZnO non-polar oxide thin film; TEM
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Stretchable diamond-like carbon microstructures for biomedical applications

JOM, 61(9), 53–58.

TL;DR: The use of pulsed laser deposition is described to create diamond-like carbon microstructures on polydimethylsiloxane to demonstrate the viability of human epidermal keratinocyte cells onpolydimethyl Siloxane surfaces coated with arrays of diamond- like carbon islands. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Optical and electrical properties of bandgap engineered gallium-doped MgxZn1-xO films

SOLID STATE COMMUNICATIONS, 149(39-40), 1670–1673.

By: W. Wei n, C. Jin n, J. Narayan n & R. Narayan n

author keywords: Type of materials thin films; Preparation and processing laser processing; Phenomena and properties optical properties
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Laser micromachining for biomedical applications

JOM, 61(9), 35–40.

TL;DR: In vitro studies showed that microscale grooves on silicon substrates may be used to orient human aortic vascular smooth muscle cells, and it is anticipated that the use of laser micromachining for modifying medical and dental devices will become more significant over the coming years. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Hydrogen storage enhanced in Li-doped carbon replica of zeolites: A possible route to achieve fuel cell demand

JOURNAL OF CHEMICAL PHYSICS, 130(17).

author keywords: adsorption; carbon nanotubes; doping; fuel cells; hydrogen storage; lithium; Monte Carlo methods; nanocomposites; nanoporous materials; nanotechnology; zeolites
TL;DR: It is found that these new ordered composites and their Li-doped versions show very attractive hydrogen storage capacities at 77 and 298 K, respectively and are thus very promising materials for hydrogen storage issues by contrast with MOFs. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Design and characterization of a spatially distributed multibeam field emission x-ray source for stationary digital breast tomosynthesis

MEDICAL PHYSICS, 36(10), 4389–4399.

By: X. Qian*, R. Rajaram*, X. Calderon-Colon*, G. Yang*, T. Phan*, D. Lalush n, J. Lu*, O. Zhou*

author keywords: tomosynthesis; breast imaging; x-ray; carbon nanotube; field emission
MeSH headings : Computer-Aided Design; Equipment Design; Equipment Failure Analysis; Mammography / instrumentation; Radiographic Image Enhancement / instrumentation; Radiometry; Reproducibility of Results; Scattering, Radiation; Sensitivity and Specificity; Tomography, X-Ray Computed / instrumentation; Transducers; X-Rays
TL;DR: The authors demonstrate experimentally the feasibility of achieving 11 s scanning time at full detector resolution with 0.3 mm source resolution without motion blur and evaluate the emission current, current variation, lifetime, and focal spot sizes of the source array. (via Semantic Scholar)
UN Sustainable Development Goal Categories
5. Gender Equality (Web of Science)
Source: Web Of Science
Added: August 6, 2018

2009 article

Controllable Microfluidic Synthesis of Multiphase Drug-Carrying Lipospheres for Site-Targeted Therapy

BIOTECHNOLOGY PROGRESS, Vol. 25, pp. 938–945.

author keywords: cancer; drug delivery; liposome; microbubble; microfluidics
MeSH headings : Cell Line, Tumor; Chemistry, Pharmaceutical; Drug Carriers / chemical synthesis; Drug Carriers / chemistry; Drug Delivery Systems / methods; Humans; Lipids / chemistry; Microfluidics / methods; Oils / chemistry; Particle Size; Phase Transition
TL;DR: The production of micrometer‐sized gas‐filled lipospheres using digital (droplet‐based) microfluidics technology for chemotherapeutic drug delivery and preliminary acoustic studies reveal a highly uniform echo correlation of greater than 95%. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Biomechanical Comparison of Four Soft Tissue Replacement Materials: An In Vitro Evaluation of Single and Multilaminate Porcine Small Intestinal Submucosa, Canine Fascia Lata, and Polypropylene Mesh

VETERINARY SURGERY, 38(7), 834–844.

By: G. Arnold n, K. Mathews n, S. Roe n, P. Mente n & T. Seaboch n

MeSH headings : Animals; Biomechanical Phenomena; Cadaver; Dogs; Fascia Lata; Intestinal Mucosa / physiology; Intestine, Small / physiology; Materials Testing / veterinary; Mollusk Venoms; Polypropylenes; Surgical Mesh / veterinary; Swine; Tensile Strength
TL;DR: Compared with previous studies, PM accommodated a significantly higher load and energy to yield when its longitudinal cords were oriented parallel with the tension axis, and MLSIS had biomechanical characteristics that were inferior to FL and PM but superior to SIS. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Electrospun composite poly(L-lactic acid)/tricalcium phosphate scaffolds induce proliferation and osteogenic differentiation of human adipose-derived stem cells

BIOMEDICAL MATERIALS, 4(3).

By: S. McCullen n, Y. Zhu*, S. Bernacki n, R. Narayan n, B. Pourdeyhimi n, R. Gorga n, E. Loboa n

MeSH headings : Adipocytes / cytology; Adipocytes / physiology; Biocompatible Materials / chemistry; Calcium Phosphates / chemistry; Cell Culture Techniques / methods; Cell Differentiation; Cell Proliferation; Cells, Cultured; Electrochemistry / methods; Humans; Lactic Acid / chemistry; Materials Testing; Mesenchymal Stem Cells / cytology; Mesenchymal Stem Cells / physiology; Osteoblasts / cytology; Osteoblasts / physiology; Osteogenesis / physiology; Polyesters; Polymers / chemistry; Rotation; Tissue Engineering / methods
TL;DR: It was noted that at the highest TCP loading levels of 10 and 20 wt%, there was a dramatic increase in the amount of cell-mediated mineralization compared to the 5 wt% TCP and the neat PLA scaffold, suggesting that local environment cues provided by the biochemical nature of the scaffold can accelerate the overall osteogenic differentiation of hASCs and encourage rapid ossification. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2009 journal article

Effects of Body Positioning on Swallowing and Esophageal Transit in Healthy Dogs

JOURNAL OF VETERINARY INTERNAL MEDICINE, 23(4), 801–805.

By: C. Bonadio*, R. Pollard*, P. Dayton n, C. Leonard* & S. Marks*

author keywords: Contrast radiography; Gastroenterology; Gastrointestinal tract; Physiology; Radiology and diagnostic imaging
MeSH headings : Animals; Barium / administration & dosage; Barium / pharmacology; Contrast Media / administration & dosage; Contrast Media / pharmacology; Deglutition / physiology; Dogs / physiology; Esophagus / physiology; Female; Gastrointestinal Transit / physiology; Male; Posture / physiology; Restraint, Physical
TL;DR: Lateral body positioning significantly increases cervical esophageal transit time and affects the type of peristaltic wave generated by a swallow. (via Semantic Scholar)
Source: Web Of Science
Added: August 6, 2018

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