Prof. Nicholas A. Kotov Profile

Prof. Nicholas A. Kotov

at Univ of Michigan

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 10 March 2020 Presentation

Light confinement in low-index particles with all-dielectric anisotropic metamaterial shell (Conference Presentation)

Saman Jahani, Joong Hwan Bahng, Douglas Montjoy, Timothy Yao, Nicholas Kotov, Alireza Marandi

Proceedings Volume 11289, 1128906 (2020) https://doi.org/10.1117/12.2545314

KEYWORDS: Particles, Metamaterials, Photonic nanostructures, Anisotropy, Refractive index, Nonlinear optics, Quantum optics, Optical sensing, Optical components, Resonators

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Proceedings Article | 13 March 2019 Presentation + Paper

Terahertz time-domain polarimetry for generalized anistropic and chiral materials

Gong Cheng, Won Jin Choi, Hee-Jeong Jang, Nicholas Kotov, Theodore Norris

Proceedings Volume 10917, 1091704 (2019) https://doi.org/10.1117/12.2516383

KEYWORDS: Terahertz radiation, Polarization, Polarizers, Anisotropy, Spectroscopy, Sensors, Polarimetry, Polymers, Molecules, Circular dichroism spectroscopy

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SPIE Journal Paper | 1 May 2011 Open Access

Dual-mode imaging with radiolabeled gold nanorods

Ashish Agarwal, Huanan Zhang, Nicholas Kotov, Xia Shao, Justin Rajian, Xueding Wang, David Chamberland

JBO, Vol. 16, Issue 05, 051307, (May 2011) https://doi.org/10.1117/12.10.1117/1.3580277

KEYWORDS: Gold, Photoacoustic spectroscopy, Nuclear imaging, Tissues, Tissue optics, Transducers, Image enhancement, Biomedical optics, Nanorods, Nanoparticles

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Proceedings Article | 19 February 2011 Paper

Photoacoustic and nuclear imaging of [125I]-labeled gold nanorod contrast agent

Xia Shao, Ashish Agarwal, Justin Rajian, Nicholas Kotov, Xueding Wang

Proceedings Volume 7899, 789924 (2011) https://doi.org/10.1117/12.875604

KEYWORDS: Nuclear imaging, Nanoparticles, Gold, Photoacoustic spectroscopy, Tissues, Image enhancement, In vivo imaging, Tissue optics, Absorption, Nanorods

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Proceedings Article | 18 February 2011 Paper

Multi-target photoacoustic molecular imaging of cardiovascular inflammatory biomarkers using bioconjugated gold nanorods

S. Ha, S. Tripathy, A. Carson, L. Lavery, H. Zhang, A. Agarwal, N. Kotov, F. Villanueva, K. Kim

Proceedings Volume 7899, 78991M (2011) https://doi.org/10.1117/12.875459

KEYWORDS: Ultrasonography, Injuries, Photoacoustic spectroscopy, In vivo imaging, Inflammation, Molecular imaging, Blood, Gold, Veins, Nanorods

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Proceedings Article | 8 April 2008 Paper

Spatial structural sensing by carbon nanotube-based skins

Kenneth Loh, Tsung-Chin Hou, Jerome Lynch, Nicholas Kotov

Proceedings Volume 6932, 693207 (2008) https://doi.org/10.1117/12.776564

KEYWORDS: Skin, Corrosion, Electrodes, Nanocomposites, Sensors, Carbon, Structural health monitoring, Aluminum, Finite element methods, Chemical elements

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Proceedings Article | 28 February 2008 Paper

In vivo imaging of inflammatory responses by photoacoustics using cell-targeted gold nanorods (GNR) as contrast agent

K. Kim, A. Agarwal, A. Mcdonald, R. Moore, D. Myers, R. Witte, S.-W. Huang, S. Ashkenazi, M. Kaplan, T. Wakefield, M. O'Donnell, N. Kotov

Proceedings Volume 6856, 68560H (2008) https://doi.org/10.1117/12.763498

KEYWORDS: Injuries, Photoacoustic spectroscopy, Ultrasonography, Inflammation, Gold, Veins, Blood, Absorption, In vivo imaging, Nanorods

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Proceedings Article | 28 February 2008 Paper

Enhanced photoacoustic neuroimaging with gold nanorods and PEBBLEs

Russell Witte, K. Kim, A. Agarwal, W. Fan, R. Kopelman, N. Kotov, D. Kipke, M. O'Donnell

Proceedings Volume 6856, 685614 (2008) https://doi.org/10.1117/12.764337

KEYWORDS: Nerve, Photoacoustic spectroscopy, Tissue optics, Absorption, Gold, Neuroimaging, Brain, Tissues, In vivo imaging, Nanorods

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Proceedings Article | 20 April 2007 Paper

Integration of electrical conductivity and high strength in a SWNT polymeric nanocomposite

Bong Sup Shim, Pratima Ingle, Zhiyong Tang, Nicholas Kotov

Proceedings Volume 6526, 65261Z (2007) https://doi.org/10.1117/12.717028

KEYWORDS: Single walled carbon nanotubes, Composites, Polymers, Polymer thin films, Nanolithography, Nanocomposites, Thin films, Heat treatments, Hydrogen, Fabrication

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Proceedings Article | 10 April 2007 Paper

Passive wireless strain and pH sensing using carbon nanotube-gold nanocomposite thin films

Kenneth Loh, Jerome Lynch, Nicholas Kotov

Proceedings Volume 6529, 652919 (2007) https://doi.org/10.1117/12.715826

KEYWORDS: Sensors, Thin films, Antennas, Resistance, Capacitance, Nanocomposites, Capacitors, Carbon, Nanolithography, Inductance

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Proceedings Article | 19 February 2007 Paper

Functionalized gold nanorod particles for molecular optoacoustic imaging

Mohammad Eghtedari, Alexander Oraevsky, Andre Conjusteau, John Copland, Nicholas Kotov, Massoud Motamedi

Proceedings Volume 6437, 64370G (2007) https://doi.org/10.1117/12.716380

KEYWORDS: Gold, Nanoparticles, Signal detection, Laser irradiation, Transducers, In vivo imaging, Absorption, Skin, Cancer, Nanorods

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Proceedings Article | 13 February 2007 Paper

Gold nano-rods as a targeting contrast agent for photoacoustic imaging

A. Agarwal, S.-W. Huang, K. Day, M. O'Donnell, M. Day, N. Kotov, S. Ashkenazi

Proceedings Volume 6437, 64370H (2007) https://doi.org/10.1117/12.700881

KEYWORDS: Gold, Absorption, Photoacoustic spectroscopy, Particles, Ultrasonography, Photoacoustic imaging, Nanoparticles, Cancer, Prostate cancer, Nanorods

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Proceedings Article | 11 April 2006 Paper

Mechanical-electrical characterization of carbon-nanotube thin films for structural monitoring applications

Kenneth Loh, Jerome Lynch, Nicholas Kotov

Proceedings Volume 6174, 61741Z (2006) https://doi.org/10.1117/12.658896

KEYWORDS: Thin films, Single walled carbon nanotubes, Sensors, Resistance, Carbon nanotubes, Structural monitoring, Nanolithography, Metals, Polymers, Microelectromechanical systems

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Proceedings Article | 6 March 2006 Paper

Metallic nanoparticles as optoacoustic contrast agents for medical imaging

Andre Conjusteau, Sergey Ermilov, Dmitri Lapotko, Hongwei Liao, Jason Hafner, Mohammad Eghtedari, Massoud Motamedi, Nicholas Kotov, Alexander Oraevsky

Proceedings Volume 6086, 60860K (2006) https://doi.org/10.1117/12.658065

KEYWORDS: Nanoparticles, Gold, Tumors, Particles, Absorption, Plasmons, Laser damage threshold, Water, Cancer, Nanorods

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Proceedings Article | 28 February 2006 Paper

Colloidal quantum dots as optoelectronic elements

Dinakar Ramadurai, Yang Li, Takayuki Yamanaka, Dwarakanath Geerpuram, Viswanath Sankar, Milana Vasudev, Dimitri Alexson, Peng Shi, Mitra Dutta, Michael Stroscio, Tijana Rajh, Zoran Saponjic, Nicholas Kotov, Zhiyong Tang, Song Xu

Proceedings Volume 6127, 61270L (2006) https://doi.org/10.1117/12.641067

KEYWORDS: Quantum dots, Phonons, Absorption, Nanocrystals, Semiconductors, Fluorescence resonance energy transfer, Gold, Nanolithography, Cadmium, Nanowires

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Proceedings Article | 14 October 2004 Paper

Fluorescence enhancement and energy transport from bioconjugation between nanowires and nanoparticles

Jaebeom Lee, Alexander Govorov, Nicholas Kotov

Proceedings Volume 5513, (2004) https://doi.org/10.1117/12.556796

KEYWORDS: Nanoparticles, Luminescence, Gold, Metals, Semiconductors, Transmission electron microscopy, Energy transfer, Nanolithography, Nanomaterials, Nanowires

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Proceedings Article | 12 July 2004 Paper

Optoacoustic imaging of gold nanoparticles targeted to breast cancer cells

Mohammad Eghtedari, Massoud Motamedi, Vsevolod Popov, Nicholas Kotov, Alexander Oraevsky

Proceedings Volume 5320, (2004) https://doi.org/10.1117/12.534464

KEYWORDS: Nanoparticles, Gold, Tumors, Cancer, Tissues, Breast cancer, Absorption, Signal detection, Neptunium, Breast

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Proceedings Article | 30 January 2004 Paper

Designing ultrastrong materials for space applications

Nicholas Kotov, Arif Mamedov, Maurizio Prato, Dirk Guldi, James Wicksted, Andreas Hirsch

Proceedings Volume 5166, (2004) https://doi.org/10.1117/12.510117

KEYWORDS: Single walled carbon nanotubes, Composites, Carbon nanotubes, Polymers, Multilayers, Carbon, Space telescopes, Molecular assembly, Thin films, Transmission electron microscopy

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The mass-strength ratio is of exceptional importance for space application. The critical parts of both shuttle vehicles and satellites depends on strength and toughness of the materials they are made of, while strict limitations on the weight of the different components are placed by the launch technology. Single wall carbon nanotubes (SWNT) present significant potential as the basic material for the space applications. Exceptional mechanical properties of single wall carbon nanotubes (SWNT) have prompted intensive studies of SWNT composites. These qualities can also be used in a variety of other technologies from automotive to military and medical. However, the present composites have shown only a moderate strength enhancement when compared to other hybrid materials. Although substantial advances have been made, mechanical characteristics of SWNT-doped polymers are noticeably below their highly anticipated potential. Pristine SWNTs are well known for poor solubilization, which leads to phase segregation of composites. Severe structural inhomogeneities result in the premature failure of the hybrid SWNT/polymer materials. The connectivity with and uniform distribution within the matrix are essential structural requirements for the strong SWNT composites. Here we show that a new processing approach based on sequential layering of chemically-modified nanotubes and polyelectrolytes can greatly diminish the phase segregation and render SWNT composite highly homogeneous. Combined with chemical cross-linking, this processing leads to drastically improved mechanical properties. Tensile strength of the composites is several times higher than that of SWNT composites made via mixing; it approaches values seen for hard ceramics. The universality of the layering approach applicable to a wide range of functional materials makes possible successful incorporation of SWNT into a variety of composites imparting them required mechanical properties. The thin film membranes that are obtained in the result of the layer-by-layer process can be used as an intermediate or as a component of ultrastrong laminates. At the same time, the prepared membranes can also be utilized in the as-prepared form for the large area space telescopes (both radio and optical) because the combine the strength and multiple functionality of the SWNT membranes with the ease of deployment.

Proceedings Article | 1 July 2003 Paper

Bioconjugated gold nanoparticles as a contrast agent for optoacoustic detection of small tumors

Mohammad Eghtedari, John Copland, Vsevolod Popov, Nicholas Kotov, Massoud Motamedi, Alexander Oraevsky

Proceedings Volume 4960, (2003) https://doi.org/10.1117/12.503617

KEYWORDS: Gold, Nanoparticles, Tumors, Cancer, Absorption, Tissue optics, Neptunium, Signal detection, Acoustics, Tissues

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Showing 5 of 19 publications

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