Joonseok Koh

Prof. Dr. Joonseok Koh

Konkuk University, republic of korea
orcid

Research Focus & Metrics

Academic Career Length

29Years (1998-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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Verified
Journal Article
Open access
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Santosh KumarSantosh Kumar
Santosh Kumar
Joonseok KohJoonseok Koh
Joonseok Koh
This paper describes the physiochemical, optical and biological activity of chitosan-chromone derivative. The chitosan-chromone derivative gels were prepared by reacting chitosan with chromone-3-carbaldehyde, followed by solvent exchange, filtration and drying by evaporation. The identity of Schiff base was confirmed by UV-Vis absorption spectroscopy and Fourier-transform infrared (FTIR) spectroscopy. The chitosan-chromone derivative was evaluated by X-ray diffraction (XRD), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), photoluminescence (PL) and circular dichroism (CD). The CD spectrum showed the chitosan-chromone derivative had a secondary helical structure. Microbiological screening results demonstrated the chitosan-chromone derivative had antimicrobial activity against Escherichia coli bacteria. The chitosan-chromone derivative did not have any adverse effect on the cellular proliferation of mouse embryonic fibroblasts (MEF) and did not lead to cellular toxicity in MEFs. These results suggest that the chitosan-chromone derivative gels may open a new perspective in biomedical applications.

1 February 2019 in Carbohydrate Polymers
Verified
Journal Article
Closed access
Santosh KumarSantosh Kumar
Santosh Kumar
Krishnakumar BaluKrishnakumar Balu
Krishnakumar Balu
ASAbilio J.F.N. Sobral
Abilio J.F.N. Sobral
Joonseok KohJoonseok Koh
Joonseok Koh

5 July 2012 in ACS Nano
Verified
Journal Article
Closed access
YLYong-Deok Lee
Yong-Deok Lee
CLChang-Keun Lim
Chang-Keun Lim
ASAjay Singh
Ajay Singh
Joonseok KohJoonseok Koh
Joonseok Koh
JKJungahn Kim
Jungahn Kim
SKSehoon Kim
Sehoon Kim

1 September 2014 in International Journal of Biological Macromolecules
Verified
Journal Article
Closed access
SKSantosh Kumar
Santosh Kumar
Joonseok KohJoonseok Koh
Joonseok Koh

1 April 2012 in International Journal of Biological Macromolecules
Verified
Journal Article
Closed access
Santosh KumarSantosh Kumar
Santosh Kumar
Joonseok KohJoonseok Koh
Joonseok Koh
HKHyerim Kim
Hyerim Kim
MGMukesh Kumar Gupta
Mukesh Kumar Gupta
PDP.K. Dutta
P.K. Dutta

1 October 2020 in International Journal of Biological Macromolecules
Verified
Journal Article
Closed access
Santosh KumarSantosh Kumar
Santosh Kumar
JDJoydeep Dutta
Joydeep Dutta
PDP.K. Dutta
P.K. Dutta
Joonseok KohJoonseok Koh
Joonseok Koh