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You searched on: Author: jeeseong hwang

Displaying records 11 to 20 of 62 records.
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11. Mapping the Vif-A3G interaction using peptide arrays: a basis for anti-HIV lead peptides
Published: 6/15/2013
Authors: Jeeseong Hwang, Ji Y. Lee, Abigail E. Miller, Tali Reingewertz, Elena Britan-Rosich, Shahar Rotem-Bamberger, Mathias Viard, Robert Blumenthal, Assaf Friedler
Abstract: Human apolipoprotein-B mRNA-editing catalytic polypeptide-like 3G (A3G) is a cytidine deaminase that restricts retroviruses, endogenous retro-elements and DNA viruses. A3G plays a key role in the anti- HIV-1 innate cellular immunity. The HIV-1 Vif ...

12. Metrology for Lab-on-a-Chip Final-Product Devices
Published: 5/12/2013
Authors: Darwin R Reyes-Hernandez, Michael W Halter, Jeeseong Hwang
Abstract: New metrology tools to measure the critical parameters of internal structures in lab on a chip devices are greatly needed in order to develop standard tests for this technology. Here we present a method that combines a custom made optical coherence ...

13. Calibration and validation scheme for in vivo spectroscopic imaging of tissue oxygenation
Published: 8/9/2012
Authors: Maritoni Abatayo Litorja, Robert C. Chang, Jeeseong Hwang, David W Allen
Abstract: The determination of the level of oxygenation in optically accessible tissues using multispectral or hyperspectral imaging (HSI ) of oxy- and deoxyhemoglobin has special appeal in clinical work due to its non-invasiveness, ease of use and capability ...

14. Developing digital tissue phantoms for hyperspectral imaging of ischemic wounds
Published: 5/18/2012
Authors: David W Allen, Jeeseong Hwang, Maritoni Abatayo Litorja, Joseph Paul Rice
Abstract: Biomedical optical imaging has the potential to achieve high spatial resolution and high functional sensitivity for non-invasive assessment of ischemic wounds. However, clinical acceptance of many optical imaging devices is hampered by poor repro ...

15. Algorithm Validation Using Multicolor Phantoms
Published: 5/9/2012
Authors: Daniel Victor Samarov, Matthew Lawrence Clarke, Ji Y. Lee, David W Allen, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: We present a framework for hyperspectral image (HSI) analysis validation, specifically abundance fraction estimation based on HSI measurements of water soluble dye mixtures printed on microarray chips. In our work we focus on the performance of tw ...

16. Designing Microarrays Phantoms for Hyperspectral Imaging Validation
Published: 5/9/2012
Authors: Matthew Lawrence Clarke, Ji Y. Lee, Daniel Victor Samarov, David W Allen, Maritoni Abatayo Litorja, Ralph Nossal, Jeeseong Hwang
Abstract: The simple design of custom-tailored microarrays for the characterization of hyperspectral imaging systems and analysis methods for biologically relevant samples. Individual and mixtures of dyes were printed on microscope slides and imaged by a hyper ...

17. Fabrication and Characterization of a Multilayered Optical Tissue Model with Embedded Scattering Microspheres in Polymeric Materials
Published: 5/9/2012
Authors: Robert C. Chang, Peter M. Johnson, Christopher M Stafford, Jeeseong Hwang
Abstract: We report on a novel fabrication approach to build multilayered optical tissue phantoms that serve as independently validated test targets for axial resolution and contrast in scattering measurements by depth-resolving optical coherent tomography (OC ...

18. Hyperspectral Image Projector Applications
Published: 2/15/2012
Authors: Joseph Paul Rice, Steven W Brown, David W Allen, Howard W Yoon, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: For the past several years NIST has been developing, along with several collaborators, a Hyperspectral Image Projector (HIP). This scene projector produces high-resolution programmable spectra and projects them into dynamic two-dimensional images ...

19. Validating the LASSO Algorithm by Unmixing Spectral Signatures in Multicolor Phantoms
Published: 2/1/2012
Authors: Daniel Victor Samarov, Matthew Lawrence Clarke, Ji Y. Lee, David W Allen, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: As hyperspectral imaging (HSI) sees increased implementation into the biological and medical fields it becomes increasingly important that the algorithms being used to analyze the corresponding output be validated. While certainly important under any ...

20. Hyperspectral Imaging and Analysis of Single Erythrocytes
Published: 8/12/2011
Authors: Ji Y. Lee, Matthew Lawrence Clarke, Fuyuki Tokumasu, John F. Lesoine, David W Allen, Robert C. Chang, Maritoni Abatayo Litorja, Jeeseong Hwang
Abstract: We report a hyperspectral imaging and analysis technique to resolve unique physico-chemical characteristics of subcellular substances in single erythrocytes. We constructed a microscope system installed with a spectral light engine capable of contr ...

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