Hyeona Kang

Hyeona Kang
Pohang University of Science and Technology | POSTECH · School of Interdisciplinary Bioscience and Bioengineering

About

13
Publications
1,220
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157
Citations
Introduction
Worked @ the Brain Research Core Facilities, Korea Brain Research Institute (2016-2018) Worked @ the School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (2011-2016)

Publications

Publications (13)
Article
Full-text available
Human endothelial progenitor cells (hEPCs) are promising therapeutic resources for wound repair through stimulating neovascularization. However, the hEPCs-based cell therapy has been hampered by poor engraftment of transplanted cells. In this study, we explored the effects of N-acetylated Proline-Glycine-Proline (Ac-PGP), a degradation product of c...
Article
Full-text available
Tris-HCl buffer solution is extensively used in biochemistry and molecular biology to maintain a stable pH for biomolecules such as nucleic acids and proteins. Here we report on the high-precision THz dielectric spectroscopy of a 10 mM Tris-HCl buffer. Using a double Debye model, including conductivity of ionic species, we measured the complex diel...
Article
Combined with THz time-domain spectroscopy, THz near-field microscopy based on an atomic force microscope is a technique that, while challenging to implement, is invaluable for probing low-energy light-matter interactions of solid-state and biomolecular nanostructures, which are usually embedded in background media. Here, we experimentally demonstr...
Conference Paper
We measured terahertz (THz) emission from the vertically aligned indium arsenide (InAs) nanowires using THz time-domain spectroscopy. The photoexcited InAs nanowires were grown by metalorganic chemical vapor deposition on type silicon substrate. Experimental results shows that THz emission mechanism of InAs nanowires are very different from that of...
Conference Paper
A variety of buffers are commonly used in biochemistry and molecular biology to maintain functions of various biomolecules such as nucleic acids and proteins. We present the high-precision terahertz (THz) time domain spectroscopy (TDS) of buffer and water to clarify differences between both liquids in complex dielectric functions and determine a di...
Article
Full-text available
We present quantitative coherent measurements of scattering pulses and spectra in terahertz apertureless near-field microscopes. Broadband near-field image contrasts for both amplitude and phase spectra are measured directly from time-domain scattering signals with an unprecedentedly high single-scan signal-to-noise ratio (∼48 dB), with approach cu...
Article
Full-text available
The water distribution in human osteoarthritic articular cartilage has been quantitatively characterized using terahertz time-domain spectroscopy (THz TDS). We measured the refractive index and absorption coefficient of cartilage tissue in the THz frequency range. Based on our measurements, the estimated water content was observed to decrease with...

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