Ashok Zachariah Samuel

Profile Information

Affiliation: Junior Researcher (Assistant Professor) (（和文）次席研究員（研究院講師）), Research Organization for Nano and Life Innovations, Waseda University

Researcher number: 30818216
J-GLOBAL ID: 202001015471946730
researchmap Member ID: R000011505

External link: https://sites.google.com/view/ashoksamuel/home

Research Interests

Research Areas

Research History

Nov, 2017 - Present

Waseda University
Apr, 2014 - Oct, 2017

National Chiao Tung University
Jan, 2013 - Mar, 2014

Department of chemistry, Gakushuin University

Education

Jan, 2006 - Jul, 2012

Indian Institute of Science

Awards

Mar, 2014

Dr. J C GHOSH MEDAL, Indian Institute of Science
Oct, 2013

EARLY CAREER RESEARCHER AWARD, Society for Applied Spectroscopy, USA
Jun, 2005

JUNIOR RESEARCH FELLOWSHIP
May, 2003

University First Rank

Major Papers

Raman Microspectroscopy Imaging Analysis of Extracellular Vesicles Biogenesis by Filamentous Fungus Penicilium chrysogenum

Ashok Zachariah Samuel, Shumpei Horii, Takuji Nakashima, Naoko Shibata, Masahiro Ando, Haruko Takeyama

Advanced Biology, 2101322-2101322, Mar 11, 2022 Peer-reviewedLead author
100

Deconstruction of Obscure Features in SVD-Decomposed Raman Images from P. chrysogenum Reveals Complex Mixing of Spectra from Five Cellular Constituents

Ashok Zachariah Samuel, Shumpei Horii, Masahiro Ando, Haruko Takeyama

Analytical Chemistry, 93(35) 12139-12146, Sep 7, 2021 Lead authorCorresponding author
Molecular profiling of lipid droplets inside HuH7 cells with Raman micro-spectroscopy

Ashok Zachariah Samuel, Rimi Miyaoka, Masahiro Ando, Anne Gaebler, Christoph Thiele, Haruko Takeyama

Communications Biology, 3(1) 372-372, Dec, 2020 Peer-reviewedLead author
Detection of Penicillin G Produced by Penicillium chrysogenum KF 425 in Vivo with Raman Microspectroscopy and Multivariate Curve Resolution-Alternating Least Squares Methods

Shumpei Horii, Masahiro Ando, Ashok Z. Samuel, Akira Take, Takuji Nakashima, Atsuko Matsumoto, Yōko Takahashi, Haruko Takeyama

J. Nat. Prod., Accepted, Mar 11, 2020 Peer-reviewed
Direct estimation of polymer crystallinity with Raman spectroscopy using ratio of scattering cross-sections estimated from variable temperature measurements

Ashok Zachariah Samuel

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 224 117431-117431, Jan, 2020 Peer-reviewedLead authorCorresponding author
Estimating Percent Crystallinity of Polyethylene as a Function of Temperature by Raman Spectroscopy Multivariate Curve Resolution by Alternating Least Squares

Ashok Zachariah Samuel, Bo-Han Lai, Shih-Ting Lan, Masahiro Ando, Chien-Lung Wang, Hiro-o Hamaguchi

Analytical Chemistry, 89(5) 3043-3050, Mar 7, 2017 Peer-reviewedLead author
Rapid microstructure characterization of polymer thin films with 2D-array multifocus Raman microspectroscopy

Ashok Zachariah Samuel, Sohshi Yabumoto, Kenichi Kawamura, Koichi Iwata

The Analyst, 140(6) 1847-1851, 2015 Peer-reviewedLead author
Energy funneling and macromolecular conformational dynamics: a 2D Raman correlation study of PEG melting

Ashok Zachariah Samuel, Siva Umapathy

Polymer Journal, 46(6) 330-336, Jun, 2014 Peer-reviewedLead author
Conformational Reorganization of Hyperbranched and Linear Polymers and Functionalized Porous Polymer Films

Ashok Zachariah Samuel

2014 Peer-reviewedLead author
Janus Hybramers: Self-Adapting Amphiphilic Hyperbranched Polymers

Ashok Zachariah Samuel, S. Ramakrishnan

Macromolecules, 45(5) 2348-2358, Mar 13, 2012 Peer-reviewedLead author
Functionalized and Postfunctionalizable Porous Polymeric Films through Evaporation-Induced Phase Separation Using Mixed Solvents

Ashok Zachariah Samuel, S. Umapathy, S. Ramakrishnan

ACS Applied Materials & Interfaces, 3(9) 3293-3299, Sep 28, 2011 Peer-reviewedLead author

Misc.

Mycelial differentiation associated regulation of avermectin production in Streptomyces avermitilis investigated with Raman microspectroscopic imaging

堀井俊平, 堀井俊平, 安藤正浩, 中島琢自, SAMUEL Ashok, 高橋洋子, 竹山春子, 竹山春子, 竹山春子, 竹山春子

日本農芸化学会大会講演要旨集(Web), 2023, 2023
Localization analysis of avermectin production during mycelial differentiation in Streptomyces avermitilis investigated with Raman imaging

堀井俊平, 堀井俊平, 安藤正浩, 中島琢自, ASHOK Samuel, 高橋洋子, 竹山春子, 竹山春子, 竹山春子, 竹山春子

日本分子生物学会年会プログラム・要旨集(Web), 45th, 2022
Detection of mangromicin analogs by using Raman spectroscopy and multivariate spectral analysis.

向島諒, 安藤正浩, 中島琢自, SAMUEL Ashok, 高橋洋子, 竹山春子, 竹山春子, 竹山春子, 竹山春子

日本化学会春季年会講演予稿集(Web), 101st, 2021
Detection of Mangromicin analogs by using Raman microspectroscopy

向島諒, 安藤正浩, 安藤正浩, ASHOK Samuel, 中島琢自, 高橋洋子, 松本厚子, 竹山春子, 竹山春子, 竹山春子 …

日本化学会春季年会講演予稿集(CD-ROM), 100th, 2020
In situ Detection of Penicillin and Avermectin in Microbes by Raman Microspectroscopy and Multivariate Analysis

堀井俊平, 堀井俊平, 安藤正弘, 安藤正弘, 中島琢自, 中島琢自, ASHOK Samuel, 松本厚子, 高橋洋子, 竹山春子 …

日本農芸化学会大会講演要旨集(Web), 2020, 2020
顕微ラマン多変量スペクトル分解法を用いた生理活性物質penicillin及びavermectinの菌体内検出

堀井俊平, 安藤正浩, 安藤正浩, 武晃, 武晃, SAMUEL Ashok, 中島琢自, 松本厚子, 高橋洋子, 竹山春子 …

日本化学会春季年会講演予稿集(CD-ROM), 99th, 2019
顕微ラマン分光法及び多変量スペクトル分解法を用いた生理活性物質penicillin及びavermectinの菌体内検出

堀井俊平, 堀井俊平, 安藤正浩, 安藤正浩, 中島琢自, ASHOK Samuel, 松本厚子, 高橋洋子, 竹山春子, 竹山春子 …

日本生物工学会大会講演要旨集, 71st, 2019