Jacob M. Garguilo

Works (17)

Updated: July 5th, 2023 16:00

2009 journal article

Fluorescence quenching effects of nanocrystalline diamond surfaces

DIAMOND AND RELATED MATERIALS, 18(1), 82–87.

By: J. Sakon, G. Ribeill, J. Garguilo*, J. Perkins, K. Weninger*  & R. Nemanich*

author keywords: Nanocrystalline; Diamond film; Biocompatibility; Optical properties
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Sources: Web Of Science, NC State University Libraries
Added: August 6, 2018

2007 journal article

The surface oxidation potential of melanosomes measured by free electron laser-photoelectron emission microscopy

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 83(3), 692–697.

By: J. Garguilo*, L. Hong, G. Edwards, R. Nemanich* & J. Simon

MeSH headings : Animals; Cattle; Hair / cytology; Hair / ultrastructure; Humans; Iron / metabolism; Iron Chelating Agents / pharmacology; Melanosomes / chemistry; Microscopy / instrumentation; Microscopy / methods; Nanostructures; Oxidation-Reduction; Pigment Epithelium of Eye / ultrastructure; Potentiometry; Sepia; Silicates; Spectrum Analysis; Titanium
TL;DR: The surface oxidation potential of iron in human melanosomes in both the eye and brain is insensitive to bound Fe(III) up to saturation, suggesting that the metal is bound to the interior of the granule. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Age-dependent photoionization thresholds of melanosomes and lipofuscin isolated from human retinal pigment epithelium cells

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 82(6), 1475–1481.

By: L. Hong, J. Garguilo*, L. Anzaldi, G. Edwards, R. Nemanich* & J. Simon

MeSH headings : Adolescent; Aged; Humans; Light; Lipofuscin / metabolism; Lipofuscin / radiation effects; Melanosomes / metabolism; Melanosomes / radiation effects; Melanosomes / ultrastructure; Microscopy, Electron, Scanning; Middle Aged; Pigment Epithelium of Eye / cytology; Pigment Epithelium of Eye / physiology; Pigment Epithelium of Eye / radiation effects; Retina / growth & development; Spectrophotometry
TL;DR: The data suggest that thin deposits of lipofuscin on the surface of retinal pigment epithelium melanosomes are common in the aged eye and that this renders the melanosome more pro-oxidant. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

Photoionization thresholds of melanins obtained from free electron laser-photoelectron emission microscopy, femtosecond transient absorption spectroscopy and electron paramagnetic resonance measurements of oxygen photoconsumption

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 82(3), 733–737.

By: T. Ye *, L. Hong*, J. Garguilo n, A. Pawlak *, G. Edwards*, R. Nemanich n, T. Sarna *, J. Simon*

MeSH headings : Electron Spin Resonance Spectroscopy; Melanins / chemistry; Microscopy, Electron; Oxygen / chemistry; Photochemistry; Skin Neoplasms / etiology; Spectrophotometry, Ultraviolet; Spectrum Analysis / methods
TL;DR: The lower ionization potential observed for pheomelanin could be an important part of the explanation for the greater incidence rate of UV-induced skin cancers in red-haired individuals. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2006 journal article

The surface oxidation potential of human neuromelanin reveals a spherical architecture with a pheomelanin core and a eumelanin surface

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 103(40), 14785–14789.

By: W. Bush*, J. Garguilo n, F. Zucca *, A. Albertini*, L. Zecca *, G. Edwards*, R. Nemanich n, J. Simon*

author keywords: free electron laser; oxidative stress; photoelectron imaging; substantia nigra; Parkinson's disease
MeSH headings : Animals; Brain Chemistry; Cattle; Humans; Melanins / chemistry; Melanins / radiation effects; Microscopy, Atomic Force; Microscopy, Electron, Scanning; Oxidation-Reduction; Sepia; Substantia Nigra / chemistry; Substantia Nigra / ultrastructure; Surface Properties; Ultraviolet Rays
TL;DR: Neuromelanin isolated from the substantia nigra region of the human brain was studied by scanning probe and photoelectron emission microscopies and reveals that NM granules are comprised of spherical structures with a diameter of ≈30 nm, similar to that observed for Sepia cuttlefish, bovine eye, and human eye and hair melanosomes. (via Semantic Scholar)
UN Sustainable Development Goal Categories
14. Life Below Water (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2005 article

Field enhanced thermionic electron emission from sulfur doped nanocrystalline diamond films

DIAMOND AND RELATED MATERIALS, Vol. 14, pp. 704–708.

By: F. Kock n, J. Garguilo n & R. Nemanich n

author keywords: nanocrystalline; doping; thermionic emission; energy conversion
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 article

Growth and field emission properties of small diameter carbon nanotube films

DIAMOND AND RELATED MATERIALS, Vol. 14, pp. 714–718.

By: Y. Wang n, S. Gupta n, J. Garguilo n, Z. Liu*, L. Qin * & R. Nemanich n

author keywords: small diameter carbon nanotubes; MWCVD; growth; field emission
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Imaging temperature-dependent field emission from carbon nanotube films: Single versus multiwalled

APPLIED PHYSICS LETTERS, 86(6).

By: S. Gupta n, Y. Wang n, J. Garguilo n & R. Nemanich n

Source: Web Of Science
Added: August 6, 2018

2005 journal article

Oxidation potentials of human eumelanosomes and plheomelanosomes

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 81(1), 145–148.

By: A. Samokhvalov *, L. Hong*, Y. Liu *, J. Garguilo n, R. Nemanich n, G. Edwards*, J. Simon*

TL;DR: The effect of added melanosomes on the reduction of Fe(III)-cytochrome showed pheomelanosome are stronger reducing agents than eumelanosomes, consistent with the measured oxidation potentials. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2005 journal article

Thermionic field emission from nanocrystalline diamond-coated silicon tip arrays

PHYSICAL REVIEW B, 72(16).

By: J. Garguilo n, F. Koeck  n, R. Nemanich n, X. Xiao n, J. Carlisle n & O. Auciello n

UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 article

Direct correlation of surface morphology with electron emission sites for intrinsic nanocrystalline diamond films

DIAMOND AND RELATED MATERIALS, Vol. 13, pp. 1022–1025.

By: E. Kock n, J. Garguilo n & R. Nemanich n

author keywords: nanocrystalline; plasma chemical vapor deposition; field emission
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2004 article

Experimental studies of the formation process and morphologies of carbon nanotubes with bamboo mode structures

DIAMOND AND RELATED MATERIALS, Vol. 13, pp. 1287–1291.

By: Y. Wang n, G. Tang n, F. Koeck n, B. Brown n, J. Garguilo n & R. Nemanich n

author keywords: multiwalled carbon nanotubes; bamboo mode; formation process; morphologies
Source: Web Of Science
Added: August 6, 2018

2004 article

Fibrinogen adsorption onto microwave plasma chemical vapor deposited diamond films

DIAMOND AND RELATED MATERIALS, Vol. 13, pp. 595–599.

By: J. Garguilo n, B. Davis n, M. Buddie n, F. Kock n & R. Nemanich n

author keywords: diamond properties and applications; MPCVD; biocompatibility; diamond
UN Sustainable Development Goal Categories
6. Clean Water and Sanitation (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 article

On the thermionic emission from nitrogen-doped diamond films with respect to energy conversion

DIAMOND AND RELATED MATERIALS, Vol. 13, pp. 2052–2055.

By: F. Koeck, J. Garguilo* & R. Nemanich*

author keywords: doped diamond; thermionic emission; energy conversion; CVD
UN Sustainable Development Goal Categories
7. Affordable and Clean Energy (OpenAlex)
Source: Web Of Science
Added: August 6, 2018

2004 personal communication

Photoionization threshold of eumelanosomes determined using UV free electron laser - Photoelectron emission microscopy

Samokhvalov, A., Garguilo, J., Yang, W. C., Edwards, G. S., Nemanich, R. J., & Simon, J. D. (2004, October 21).

By: A. Samokhvalov  n, J. Garguilo n, W. Yang n, G. Edwards n, R. Nemanich n & J. Simon n

TL;DR: The UV-FEL-PEEM images collected on human eumelanosomes isolated from black hair show that the organelle is photoionized by UV-B radiation, providing new insight into the origin of the differences between the photoionization and oxygen photoconsumption action spectra for eumELanins. (via Semantic Scholar)
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2003 article

Spatial distribution of electron emission sites for sulfur doped and intrinsic nanocrystalline diamond films

DIAMOND AND RELATED MATERIALS, Vol. 12, pp. 474–480.

By: F. Kock n, J. Garguilo n, R. Nemanich n, S. Gupta *, B. Weiner * & G. Morell *

author keywords: nanocrystalline; plasma CVD; field emission
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

2002 article

Enhanced low-temperature thermionic field emission from surface-treated N-doped diamond films

DIAMOND AND RELATED MATERIALS, Vol. 11, pp. 774–779.

By: F. Kock n, J. Garguilo n, B. Brown n & R. Nemanich n

author keywords: chemical vapor deposition (CVD); diamond; field emission
UN Sustainable Development Goal Categories
Source: Web Of Science
Added: August 6, 2018

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