Prof. Yun-Sheng Chen Profile

Prof. Yun-Sheng Chen

Assistant Professor at Univ of Illinois

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Publications (12)

Proceedings Article | 13 March 2024 Presentation

Dual modal ultrasound localization microscopy and photoacoustic imaging

Shensheng Zhao, Jonathan Hartanto, Ritin Joseph, Cheng-Hsun Wu, Yang Zhao, Yun-Sheng Chen

Proceedings Volume PC12834, PC1283401 (2024) https://doi.org/10.1117/12.3000721

KEYWORDS: Ultrasonography, Photoacoustic imaging, Microscopy, Data acquisition, Photoacoustic spectroscopy, In vivo imaging, Algorithm development, Temporal resolution, Super resolution, Oncology

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Proceedings Article | 3 October 2022 Presentation

Ultrafast optical force nanoscopy

Hanwei Wang, Sean Michael Meyer, Catherine Murphy, Yun-Sheng Chen, Yang Zhao

Proceedings Volume PC12197, PC121971D (2022) https://doi.org/10.1117/12.2633636

KEYWORDS: Ultrafast phenomena, Super resolution microscopy, Visualization, Raster graphics, Nanotechnology, Light-matter interactions

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Proceedings Article | 20 August 2020 Presentation

Nanoscopic imaging of molecular conformations in physiological conditions

Yang Zhao, Yun-Sheng Chen

Proceedings Volume 11462, 1146211 (2020) https://doi.org/10.1117/12.2568640

KEYWORDS: Plasmonics, Super resolution microscopy, Atomic force microscopy, Molecules, Visualization, Macromolecules, Proteins, Optical tweezers, Resonance energy transfer, Fluorescence resonance energy transfer

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SPIE Journal Paper | 7 May 2013 Open Access

Modulation of photoacoustic signal generation from metallic surfaces

Trevor Mitcham, Kimberly Homan, Wolfgang Frey, Yun-Sheng Chen, Stanislav Emelianov, John Hazle, Richard Bouchard

JBO, Vol. 18, Issue 05, 056008, (May 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.5.056008

KEYWORDS: Signal generators, Titanium, Modulation, Surface roughness, Metals, Absorption, Polishing, Photoacoustic spectroscopy, Surface finishing, Natural surfaces

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SPIE Journal Paper | 3 January 2013 Open Access

Photoacoustic signal amplification through plasmonic nanoparticle aggregation

Carolyn Bayer, Seung Yun Nam, Yun-Sheng Chen, Stanislav Emelianov

JBO, Vol. 18, Issue 01, 016001, (January 2013) https://doi.org/10.1117/12.10.1117/1.JBO.18.1.016001

KEYWORDS: Nanoparticles, Gold, Photoacoustic spectroscopy, Plasmonics, Absorption, Signal generators, Silica, Particles, Transmission electron microscopy, Nanorods

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Proceedings Article | 23 February 2011 Paper

Photoacoustic imaging to guide needle injections

Jimmy Su, Andrei Karpiouk, Yun-Sheng Chen, Stanislav Emelianov

Proceedings Volume 7899, 78993A (2011) https://doi.org/10.1117/12.875219

KEYWORDS: Tissues, Ultrasonography, Photoacoustic spectroscopy, Metals, Transducers, Photoacoustic imaging, Natural surfaces, Visualization, Acoustics, Absorption

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Proceedings Article | 24 February 2010 Paper

Combined photoacoustic and magneto-motive ultrasound imaging

Min Qu, Seungsoo Kim, Mohammad Mehrmohammadi, Srivalleesha Mallidi, Pratixa Joshi, Kimberly Homan, Yun-Sheng Chen, Stanislav Emelianov

Proceedings Volume 7564, 756433 (2010) https://doi.org/10.1117/12.842406

KEYWORDS: Ultrasonography, Photoacoustic spectroscopy, Magnetism, Tissue optics, Nanoparticles, Tissues, Transducers, Photoacoustic imaging, Image resolution, Absorption

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Proceedings Article | 24 February 2010 Paper

On stability of molecular therapeutic agents for noninvasive photoacoustic and ultrasound image-guided photothermal therapy

Yun-Sheng Chen, Pieter Kruizinga, Pratixa Joshi, Seungsoo Kim, Kimberly Homan, Konstantin Sokolov, Wolfgang Frey, Stanislav Emelianov

Proceedings Volume 7564, 75641Q (2010) https://doi.org/10.1117/12.842906

KEYWORDS: Gold, Silica, Photoacoustic spectroscopy, Ultrasonography, Nanoparticles, Absorption, Coating, Photoacoustic imaging, Pulsed laser operation, Nanorods

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Proceedings Article | 13 February 2010 Paper

Combined photothermal therapy and magneto-motive ultrasound imaging using multifunctional nanoparticles

Mohammad Mehrmohammadi, Li Ma, Yun-Sheng Chen, Min Qu, Pratixa Joshi, Raeanna Chen, Keith Johnston, Stanislav Emelianov

Proceedings Volume 7574, 757405 (2010) https://doi.org/10.1117/12.843055

KEYWORDS: Nanoparticles, Magnetism, Ultrasonography, Tissue optics, Tissues, Tumors, Laser therapeutics, Iron, Gold, Imaging systems

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Photothermal therapy is a laser-based non-invasive technique for cancer treatment. Photothermal therapy can be enhanced by employing metal nanoparticles that absorb the radiant energy from the laser leading to localized thermal damages. Targeting of nanoparticles leads to more efficient uptake and localization of photoabsorbers thus increasing the effectiveness of the treatment. Moreover, efficient targeting can reduce the required dosage of photoabsorbers; thereby reducing the side effects associated with general systematic administration of nanoparticles. Magnetic nanoparticles, due to their small size and response to an external magnetic field gradient have been proposed for targeted drug delivery. In this study, we investigate the applicability of multifunctional nanoparticles (e.g., magneto-plasmonic nanoparticles) and magneto-motive ultrasound imaging for image-guided photothermal therapy. Magneto-motive ultrasound imaging is an ultrasound based imaging technique capable of detecting magnetic nanoparticles indirectly by utilizing a high strength magnetic field to induce motion within the magnetically labeled tissue. The ultrasound imaging is used to detect the internal tissue motion. Due to presence of the magnetic component, the proposed multifunctional nanoparticles along with magneto-motive ultrasound imaging can be used to detect the presence of the photo absorbers. Clearly the higher concentration of magnetic carriers leads to a monotonic increase in magneto-motive ultrasound signal. Thus, magnetomotive ultrasound can determine the presence of the hybrid agents and provide information about their location and concentration. Furthermore, the magneto-motive ultrasound signal can indicate the change in tissue elasticity - a parameter that is expected to change significantly during the photothermal therapy. Therefore, a comprehensive guidance and assessment of the photothermal therapy may be feasible through magneto-motive ultrasound imaging and magnetoplasmonic nanoparticles.

Proceedings Article | 12 February 2008 Paper

Preparation of metallo-dielectric photonic crystals by multi-photon direct laser writing

Stephen Kuebler, Amir Tal, Yun-Sheng Chen

Proceedings Volume 6901, 69010Z (2008) https://doi.org/10.1117/12.760826

KEYWORDS: Copper, Reflectivity, Polymers, Photonic crystals, Mid-IR, Multiphoton lithography, Metals, Plating, Plasma etching, FT-IR spectroscopy

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Proceedings Article | 6 February 2008 Paper

Metallo-dielectric nanophotonic materials via direct laser writing and electroless metallization

Stephen Kuebler, Yun-Sheng Chen, Amir Tal

Proceedings Volume 6883, 68830L (2008) https://doi.org/10.1117/12.760824

KEYWORDS: Polymers, Reflectivity, Silver, Photonic crystals, Copper, Metals, Photonics, Scanning electron microscopy, Microfabrication, FT-IR spectroscopy

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Proceedings Article | 7 March 2007 Paper

Silvered three-dimensional polymeric photonic crystals having a large mid-infrared stop band

Stephen Kuebler, Amir Tal, Yun-Sheng Chen

Proceedings Volume 6462, 646213 (2007) https://doi.org/10.1117/12.702168

KEYWORDS: Photonic crystals, Polymers, Silver, Metals, Scanning electron microscopy, Reflectivity, FT-IR spectroscopy, Liquids, Dielectrics, Microfabrication

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Showing 5 of 12 publications

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