Dr. Kelly L. Nash Profile

Dr. Kelly L. Nash

Professor of Physics

SPIE Involvement:

Conference Program Committee | Author

Area of Expertise:

Biophotonics , Spectroscopy , Biosensors , Nanoparticles , Microscopy

Websites:

Personal Website

Proceedings Article | 3 October 2022 Presentation

Solvent based thickness control of MoSe2 2D structures produced by PLAL

Alejandro Morales Betancourt, Sumeyra Tek, Andreas Christodoulou, Ernesto Flores, Jacob Flowers, Amber Arooj, Kelly Nash

Proceedings Volume PC12200, PC1220003 (2022) https://doi.org/10.1117/12.2633123

KEYWORDS: Liquids, Electronics, Binary data, Transmission electron microscopy, Transition metals, Spectroscopy, Sensors, Semiconductors, Semiconductor materials, Selenium

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Proceedings Article | 12 March 2021 Presentation + Paper

Synthesis of colloidal SeTe nanoalloy by pulsed laser ablation in deep eutectic solvents to be used as anticancer treatment

Alejandro Morales Betancourt, Chrismond Smith, Keith Minor, Andreas Christodoulou, Joshua Naranjo, Sumeyra Tek, Kelly Nash

Proceedings Volume 11659, 116590N (2021) https://doi.org/10.1117/12.2583196

KEYWORDS: Nanoparticles, Laser ablation, Tellurium, Selenium, Liquids, Nanomaterials, Modulation, Melanoma, Biomedical optics

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Proceedings Article | 13 March 2019 Presentation

Bioessential chalcogenides and immunological applications: an in vitro exploration of Selenium nanoparticles as potential carriers and therapeutic agents (Conference Presentation)

Brandy Vincent, Chrismond Smith, Jonathan Mendoza, Ashley Tran, Justine Mendez, Rosemary Robledo, Kelly Nash

Proceedings Volume 10892, 108920S (2019) https://doi.org/10.1117/12.2513343

KEYWORDS: Selenium, Chalcogenides, Nanoparticles, Therapeutic agents, In vitro testing, Tellurium, Cancer, Oxygen

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Proceedings Article | 7 March 2019 Paper

Upconversion nanoparticles for photobiomodulation of neuronal cells

Sumeyra Tek, Brandy Vincent, Christopher Baker, Ashley Tran, Kelly Nash

Proceedings Volume 10892, 108920N (2019) https://doi.org/10.1117/12.2512255

KEYWORDS: Nanoparticles, Near infrared, Upconversion, Luminescence, Ytterbium, Thulium, Scanning electron microscopy, Biomedical optics, Neurons, Lanthanides

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Proceedings Article | 22 February 2017 Paper

Lanthanum fluoride upconverting nanoparticles for photo-biomodulation of cell function

Sumeyra Tek, Brandy Vincent, L. Christopher Mimun, Ashley Tran, Binita Shrestha, Liang Tang, Kelly Nash

Proceedings Volume 10078, 1007804 (2017) https://doi.org/10.1117/12.2253790

KEYWORDS: Nanoparticles, Lanthanum, Upconversion, Near infrared, Luminescence, Biomedical optics, Nanoprobes, Modulation, Lanthanides, Fluorescent materials, Ytterbium, Thulium, Crystals, Microwave radiation, Visualization

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Proceedings Article | 26 August 2015 Paper

Photoacoustic and magnetoelastic property of cobalt ferrite nanoparticles and its attenuation with barium titanate coating

Soutik Betal, Moumita Dutta, Edward Khachatryan, Luiz Cotica, Kelly Nash, Amar Bhalla, Ruyan Guo

Proceedings Volume 9586, 958609 (2015) https://doi.org/10.1117/12.2188979

KEYWORDS: Nanoparticles, Cobalt, Photoacoustic spectroscopy, Ferroelectric materials, Magnetism, Sensors, Signal attenuation, Coating, Water, Acoustics

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Proceedings Article | 13 March 2015 Paper

External stimulation by nanosecond pulsed electric fields to enhance cellular uptake of nanoparticles

Samantha Franklin, Hope Beier, Bennett Ibey, Kelly Nash

Proceedings Volume 9326, 932610 (2015) https://doi.org/10.1117/12.2077950

KEYWORDS: Particles, Luminescence, Nanoparticles, Gold, Plasma, Acquisition tracking and pointing, Confocal microscopy, Ovary, Microscopes, Radio optics

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Proceedings Article | 3 March 2014 Paper

Optoacoustic microscopy using laser beam deflection technique

E. Khachatryan, S. Maswadi, D. Tsyboulski, E. Barnes, D. Sardar, A. Oraevsky, K. Nash, R. Glickman

Proceedings Volume 8943, 89432T (2014) https://doi.org/10.1117/12.2040718

KEYWORDS: Laser beam diagnostics, Tissue optics, Ultrasonography, Acoustics, Microscopy, Objectives, Image resolution, Tissues, Transducers, Nanoparticles

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Optoacoustic microscopy (OAM) is an emerging technology combining the beneficial features of optical contrast and ultrasound resolution, to form a hybrid imaging technique capable of multi-scale, high-contrast and high-resolution imaging through optically scattering biological tissues. In the past 15 years, two system modifications have been developed for optoacoustic / photoacoustic microscopy: acoustic-resolution AR-OAM and optical-resolution OR-OAM. Typically, acoustic resolution systems can image deeper tissues structures, however, with resolution at least an order of magnitude worse than the systems of optical-resolution. It would be attractive for variety of biomedical applications to attain high (submicron) resolution at a depth exceeding the present limit of the optical resolution optoacoustic microscopy. Here we introduce a novel, all-optical method for OAM, in which not only thermal energy deposition, but also optoacoustic signal detection is achieved optically. In our design the probe laser beam was used as an ultrawide-band ultrasonic transducer. In this method the acoustic pressure wave amplitude is proportional to the angle of deflection of the probing CW laser beam incident on a balanced dual photodiode. Such laser beam deflection (LBD) method overcomes the limitations of conventional piezoelectric ultrasound transducers and optical interferometers. LBD method allows one to use high numerical aperture objectives for better focusing, avoid distortions associated with the system elements that separate optical and acoustic paths, and provides better sensitivity than any optical interferometer. It also provides a non-contact method that is insensitive to optical and acoustic artifacts typical of backward mode of optoacoustic imaging. The LBD sensitivity depends on a large number of system parameters such as probe beam power, spot size, interaction length, optical refraction index of the coupling medium, laser wavelength, photodiode sensitivity, proximity to the optoacoustic source, and thus, can be optimized. The basic setup of OR-LBD-OAM shows high sensitivity competitive with commercial ultrasonic transducers. We report first images of biological cells and tissues obtained using this technique.

Proceedings Article | 23 February 2013 Paper

Measurement of changes in plasma membrane phospholipid polarization following nanosecond pulsed electric field exposure

Samantha Franklin, Bennett Ibey, Kelly Nash, Hope Beier

Proceedings Volume 8585, 85850S (2013) https://doi.org/10.1117/12.2005091

KEYWORDS: Luminescence, Plasma, Polarization, High speed imaging, Ions, Molecules, Temperature metrology, Fluorescence spectroscopy, Spectroscopy, Imaging systems

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Proceedings Article | 22 February 2013 Paper

Opto-acoustic characterization of chitosan based gold nanoparticles (GNPs) synthesized in the presence of monovalent salt

Samantha Franklin, Zannatul Yasmin, Saher Maswadi, Kelly Nash

Proceedings Volume 8595, 85951H (2013) https://doi.org/10.1117/12.2003124

KEYWORDS: Nanoparticles, Gold, Absorption, Ultraviolet radiation, Particles, Pulsed laser operation, Photoacoustic spectroscopy, Mirrors, Macromolecules, Sodium

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Proceedings Article | 15 February 2013 Paper

Detection of oxidative stress biomarker-induced assembly of gold nanoparticles in retinal pigment epithelial cells

Z. Yasmin, Y. Lee, S. Maswadi, R. Glickman, K. Nash

Proceedings Volume 8579, 85790E (2013) https://doi.org/10.1117/12.2003156

KEYWORDS: Gold, Nanoparticles, Absorption, Photoacoustic spectroscopy, Surface plasmons, Sensors, Biosensors, Scanning electron microscopy, Nanolithography, Biomedical optics

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Proceedings Article | 20 February 2007 Paper

Modeling visible and infrared stimulated emission from Tb3+ in TbAlO3

Kelly Nash, John Gruber, Raylon Yow, Uygun Valiev, Dhiraj Sardar

Proceedings Volume 6451, 64511A (2007) https://doi.org/10.1117/12.699348

KEYWORDS: Terbium, Absorption, Infrared radiation, Crystals, Spectroscopy, Visible radiation, Luminescence, Laser crystals, Infrared spectroscopy, Thermal modeling

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