Masao Gen

Profile Information

Affiliation: Assistant Professor, Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

Degree: Doctor of Engineering(Jun, 2014, Tokyo University of Agriculture and Technology)

Researcher number: 50774535
ORCID ID: https://orcid.org/0000-0001-6160-9029
J-GLOBAL ID: 202001013136447620
researchmap Member ID: R000001078

External link: https://mgen0928.wordpress.com/

Research Interests

Research History

Apr, 2022 - Present

Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
Apr, 2021 - Present

JST 創発的研究支援事業創発研究者（吉田パネル）
Feb, 2020 - Mar, 2022

Assistant Professor, Faculty of Frontier Engineering, Institute of Science and Engineering, Kanazawa University
Apr, 2016 - Jan, 2020

Research Fellow, School of Energy and Environment, City University of Hong Kong
Oct, 2015 - Mar, 2016

Assistant Professor, Advanced Institute for Materials Research, Tohoku University
Oct, 2014 - Sep, 2015

(Researcher), Institute of Multidisciplinary Research for Advanced Materials, Tohoku University

Education

Oct, 2011 - Jun, 2014

Tokyo University of Agriculture and Technology

Awards

2020

The 2019 Environmental Science and Technology Letters Best Paper Award, American Chemical Society

Masao Gen, Ruifeng Zhang, DanDan Huang, Yongjie Li, Chak K. Chan
2019

Best Poster Award, Japan Association of Aerosol and Technology

R. Kunihisa, A. Matsuki, A. Iwata, M. Gen, C. K. Chan
2015

Best Paper Award, Development of a battery-driven passive sampling system for electrostatically trapping atmospheric particles, 2nd International Conference on Purity, Utility Reaction and Environmental Research (PURE 2015)

M. P. Khairunnisa, F. Faizal, H. Fukushima, M. Gen, P. Widiatmoko, I.W. Lenggoro
2015

Best Poster Award, Insertion of colloidal particles in the pores of a honeycomb structure via an aerosol route, Asian Aerosol Conference 2015

I.W. Lenggoro, K. Kusdianto, M. Gen, M. Tsukada
2013

Iinoya Award (Best Presentation Award), Development of a portable sensor system based on aerosol particles to detect pesticide residues, Japan Association of Aerosol and Technology

M. Gen
2013

Kanji Takahashi Award (Best paper award), Measurement of aerosols derived from model gas containing two metal components after cooling and dilution process, Japan Association of Aerosol and Technology

N. Hama, Y. Takashima, M. Gen, M. Tsukada, H. Kamiya, I. W. Lenggoro
2013

Student Research Grant, Development of a novel method for detection of pesticide residues, Innovation Organization Program at Tokyo University of Agriculture and Technology

M. Gen
2012

Student Travel Grand for stay (30 days) at Universiti Putra Malaysia, Fabrication of a simple particle collection system to monitor atmospheric particles in Malaysia, FOLENS Program at Tokyo University of Agriculture and Technology

M. Gen
2011

Commendation from the president, Design and fabrication of aerosol system for plants-growth chamber, Tokyo University of Agriculture and Technology

M. Gen
2010

Best Poster Paper Award, A plant-growth chamber system for the exposure to submicron aerosol particles, 13th Asia Pacific Confederation of Chemical Engineering

W. Lenggoro, M. Gen, F. Z. Lim, M. Yamaguchi, T. Izuta

Papers

Rapid hydrolysis of NO2 at high ionic strengths of deliquesced aerosol particles

Masao Gen, Haotian Zheng, Yele Sun, Wanyun Xu, Nan Ma, Hang Su, Yafang Cheng, Shuxiao Wang, Jia Xing, Shuping Zhang, Likun Xue, Chaoyang Xue, Yujing Mu, Xiao Tian, Atsushi Matsuki, Shaojie Song

Dec 6, 2022 Lead authorCorresponding author
Kinetic quantitative analysis reveals the suppression of Sup35NM amyloid fibril nucleation by liquid-liquid phase separation.

Mao Fukuyama, Suguru Nishinami, Yoko Maruyama, Taiki Ozawa, Shunsuke Tomita, Yumiko Ohhashi, Motohiro Kasuya, Masao Gen, Eri Chatani, Kentaro Shiraki, Akihide Hibara

Nov 1, 2022
Filtration of aerosol particles by parallel and staggered filter arrays

Manabu Nishimura, Yajiao Liu, Masao Gen, Takafumi Seto, Yoshio Otani

Aerosol Science and Technology, 1-10, May 20, 2022 Peer-reviewed
Decay Kinetics and Absorption Changes of Methoxyphenols and Nitrophenols during Nitrate-Mediated Aqueous Photochemical Oxidation at 254 and 313 nm

Yalin Wang, Wanyi Huang, Linhui Tian, Yuchen Wang, Fangbing Li, Dan Dan Huang, Ruifeng Zhang, Beatrix Rosette Go Mabato, Ru-Jin Huang, Qi Chen, Xinlei Ge, Lin Du, Ying Ge Ma, Masao Gen, Ka In Hoi, Kai Meng Mok, Jian Z. Yu, Chak K. Chan, Xue Li, Yong Jie Li

ACS Earth and Space Chemistry, Mar 28, 2022 Peer-reviewed
Development of spray-drying-based surface-enhanced Raman spectroscopy

Chigusa Matsumoto, Masao Gen, Atsushi Matsuki, Takafumi Seto

Scientific Reports, 12(1), Mar, 2022 Peer-reviewedCorresponding author
Photochemical Reactions of Glyoxal during Particulate Ammonium Nitrate Photolysis: Brown Carbon Formation, Enhanced Glyoxal Decay, and Organic Phase Formation

Ruifeng Zhang, Masao Gen, Zhancong Liang, Yong Jie Li, Chak Keung Chan

Environmental Science & Technology, Jan 13, 2022 Peer-reviewed
Particulate nitrate photolysis in the atmosphere

Masao Gen, Zhancong Liang, Ruifeng Zhang, Beatrix Rosette Go Mabato, Chak K. Chan

Environmental Science: Atmospheres, 2022 Peer-reviewedLead author
Nitrite/Nitrous Acid Generation from the Reaction of Nitrate and Fe(II) Promoted by Photolysis of Iron–Organic Complexes

Masao Gen, Ruifeng Zhang, Chak Keung Chan

Environmental Science & Technology, Nov 23, 2021 Peer-reviewedLead authorCorresponding author
Enhanced Nitrite Production from the Aqueous Photolysis of Nitrate in the Presence of Vanillic Acid and Implications for the Roles of Light-Absorbing Organics

Yalin Wang, Dan Dan Huang, Wanyi Huang, Ben Liu, Qi Chen, Rujin Huang, Masao Gen, Beatrix Rosette Go Mabato, Chak K. Chan, Xue Li, Tianwei Hao, Yunkai Tan, Ka In Hoi, Kai Meng Mok, Yong Jie Li

Environmental Science & Technology, Nov 16, 2021 Peer-reviewed
Single-particle Raman spectroscopy for studying physical and chemical processes of atmospheric particles

Zhancong Liang, Yangxi Chu, Masao Gen, Chak K. Chan

Atmospheric Chemistry and Physics Discussions, May 26, 2021 Peer-reviewed
Preparation and characterisation of cyclodextrin glucanotransferase enzyme immobilised in electrospun nanofibrous membrane

Suryani Saallah, M. Nazli Nairn, Mohd Noriznan Mokhtar, Noor Fitrah Abu Bakar, Masao Gen, I. Wuled Lenggoro

Journal of Fiber Science and Technology, 73(10) 251-260, 2021
Nitrate Photolysis in Mixed Sucrose-Nitrate-Sulfate Particles at Different Relative Humidities

Zhancong Liang, Ruifeng Zhang, Masao Gen, Yangxi Chu, Chak K. Chan

Journal of Physical Chemistry A, 2021 Peer-reviewed
Production of Formate via Oxidation of Glyoxal Promoted by Particulate Nitrate Photolysis

Ruifeng Zhang, Masao Gen, Tzung May Fu, Chak K. Chan

Environmental Science & Technology, 2021 Peer-reviewedCorresponding author
Concluding remarks: Faraday Discussion on air quality in megacities

Masao Gen, Liyuan Zhou, Ruifeng Zhang, Chak K. Chan

Faraday Discussions, 226 617-628, 2021 Peer-reviewedInvitedLead author
Single particle diversity and mixing state of carbonaceous aerosols in Guangzhou, China

Chunlei Cheng, Chak K. Chan, Berto Paul Lee, Masao Gen, Mei Li, Suxia Yang, Feng Hao, Cheng Wu, Peng Cheng, Dui Wu, Lei Li, Zhengxu Huang, Wei Gao, Zhong Fu, Zhen Zhou

Science of The Total Environment, 142182-142182, Sep, 2020 Peer-reviewed
Multiphase Photochemistry of Iron-Chloride Containing Particles as a Source of Aqueous Chlorine Radicals and Its Effect on Sulfate Production

Masao Gen, Ruifeng Zhang, Yongjie Li, Chak K. Chan

Environmental Science & Technology, 54(16) 9862-9871, Aug 18, 2020 Peer-reviewedLead authorCorresponding author
Contribution of Particulate Nitrate Photolysis to Heterogeneous Sulfate Formation for Winter Haze in China

Haotian Zheng, Shaojie Song, Golam Sarwar, Masao Gen, Shuxiao Wang, Dian Ding, Xing Chang, Shuping Zhang, Jia Xing, Yele Sun, Dongsheng Ji, Chak K. Chan, Jian Gao, Michael B. McElroy

Environmental Science & Technology Letters, Jun 26, 2020 Peer-reviewed
Deposition of ultrasonic nebulized aerosols onto a hydrophilic surface

Kusdianto Kusdianto, Masao Gen, Mitsuki Wada, Sugeng Winardi, I Wuled Lenggoro

Malaysian Journal of Fundamental and Applied Sciences, 16(3) 258-263, Jun, 2020 Peer-reviewed
Reconciling Measurement and Prediction of Free and Solvated Water in Solution

Anthony S. Wexler, Kunal Patel, Masao Gen, Chak K. Chan

ACS Omega, 5(15) 8754-8765, Apr 21, 2020 Peer-reviewed
Enhanced Sulfate Production by Nitrate Photolysis in the Presence of Halide Ions in Atmospheric Particles

Ruifeng Zhang, Masao Gen, Dandan Huang, Yongjie Li, Chak K. Chan

Environmental Science & Technology, 54(7) 3831-3839, Apr 7, 2020 Peer-reviewed
Application of SERS on the chemical speciation of Individual Aitken mode particles after condensational growth

Ryota Kunihisa, Ayumi Iwata, Masao Gen, Chak K. Chan, Atsushi Matsuki

Aerosol Science and Technology, Feb 20, 2020 Peer-reviewed
Relative Humidity History Affects Hygroscopicity of Mixed Particles of Glyoxal and Reduced Nitrogenous Species

Xi Chen, Yangxi Chu, Alex K. Y. Lee, Masao Gen, Nethmi Yasara Kasthuriarachchi, Chak Keung Chan, Yong Jie Li

Environmental Science & Technology, 54(12) 7097-7106, 2020 Peer-reviewed
Heterogeneous Oxidation of SO2 in Sulfate Production during Nitrate Photolysis at 300 nm: Effect of pH, Relative Humidity, Irradiation Intensity, and the Presence of Organic Compounds

Masao Gen, Ruifeng Zhang, Dan Dan Huang, Yongjie Li, Chak K. Chan

Environmental Science & Technology, 53(15) 8757-8766, Aug 6, 2019 Peer-reviewed
Electrospray surface-enhanced Raman spectroscopy (ES-SERS) for studying organic coatings of atmospheric aerosol particles

Masao Gen, Ryota Kunihisa, Atsushi Matsuki, Chak K. Chan

Aerosol Science and Technology, 53(7) 760-770, Jul 3, 2019 Peer-reviewed
Effect of Ozone Concentration and Relative Humidity on the Heterogeneous Oxidation of Linoleic Acid Particles by Ozone: An Insight into the Interchangeability of Ozone Concentration and Time

Yangxi Chu, Tat Fan Cheng, Masao Gen, Chak K. Chan, Alex K. Y. Lee, Man Nin Chan

ACS Earth and Space Chemistry, 3(5) 779-788, May 16, 2019 Peer-reviewed
Reactive Uptake of Glyoxal by Methylaminium-Containing Salts as a Function of Relative Humidity

Beatrix Rosette Go Mabato, Masao Gen, Yangxi Chu, Chak K. Chan

ACS Earth and Space Chemistry, 3(2) 150-157, Feb 21, 2019 Peer-reviewed
Heterogeneous SO2 Oxidation in Sulfate Formation by Photolysis of Particulate Nitrate

Masao Gen, Ruifeng Zhang, Dan Dan Huang, Yongjie Li, Chak K. Chan

Environmental Science & Technology Letters, 6(2) 86-91, Feb 12, 2019 Peer-reviewed
Dynamics of lubricious, concentrated PMMA brush layers studied by surface forces and resonance shear measurements

Masashi Mizukami, Masao Gen, Shu Yao Hsu, Yoshinobu Tsujii, Kazue Kurihara

Soft Matter, 15(39) 7765-7776, 2019 Peer-reviewed
Reactive Uptake of Glyoxal by Ammonium-Containing Salt Particles as a Function of Relative Humidity

Masao Gen, Dan Dan Huang, Chak K. Chan

Environmental Science & Technology, 52(12) 6903-6911, Jun 19, 2018 Peer-reviewed
Electrospray surface-enhanced Raman spectroscopy (ES-SERS) for probing surface chemical compositions of atmospherically relevant particles

Masao Gen, Chak K. Chan

ATMOSPHERIC CHEMISTRY AND PHYSICS, 17(22) 14025-14037, Nov, 2017 Peer-reviewedLead author
Preparation and characterisation of cyclodextrin glucanotransferase enzyme immobilised in electrospun nanofibrous membrane

S. Saallah, M. N. Naim, M. N. Mokhtar, N. F. A. Bakar, M. Gen, I. W. Lenggoro

Journal of Fiber Science and Technology, 73(10) 251-260, 2017 Peer-reviewed
Immobilisation of cyclodextrin glucanotransferase into polyvinyl alcohol (PVA) nanofibres via electrospinning

Suryani Saallah, M. Nazli Naim, I. Wuled Lenggoro, Mohd Noriznan Mokhtar, Noor Fitrah Abu Bakar, Masao Gen

Biotechnology Reports, 10 44-48, Jun 1, 2016 Peer-reviewed
Development of a battery-driven passive sampling system for electrostatically trapping atmospheric particles

M. P. Khairunnisa, F. Faizal, H. Fukushima, M. Gen, P. Widiatmoko, I. W. Lenggoro

Journal of Purity, Utility Reaction and Environment, 5(2) 43-50, 2016 Peer-reviewed
Preliminary study on the measurement of the electrostatic charging state of PM2.5 collected on filter media

Tomoaki Okuda, Tetsuro Yoshida, Yuma Gunji, Shunichi Okahisa, K. Kusdianto K., Masao Gen, Seiichi Sato, I.Wuled Lenggoro

Asian Journal of Atmospheric Environment, 9(2) 137-145, 2015 Peer-reviewed
Probing a dip-coated layer of organic molecules by an aerosol nanoparticle sensor with sub-100 nm resolution based on surface-enhanced Raman scattering

Masao Gen, Wuled Lenggoro

RSC ADVANCES, 5(7) 5158-5163, 2015 Peer-reviewedLead author
Area-selective deposition of charged particles derived from colloidal aerosol droplets on a surface with different hydrophilic levels

K. Kusdianto, Masao Gen, I. Wuled Lenggoro

JOURNAL OF AEROSOL SCIENCE, 78 83-96, Dec, 2014 Peer-reviewed
Transformation of cyclodextrin glucanotransferase (CGTase) from aqueous suspension to fine solid particles via electrospraying

Suryani Saallah, M. Nazli Naim, Mohd. Noriznan Mokhtar, Noor Fitrah Abu Bakar, Masao Gen, I. Wuled Lenggoro

ENZYME AND MICROBIAL TECHNOLOGY, 64-65 52-59, Oct, 2014 Peer-reviewed
Simultaneous deposition of submicron aerosols onto both surfaces of a plate substrate by electrostatic forces

Masao Gen, Seiji Ikawa, Shinichi Sagawa, I. Wuled Lenggoro

e-Journal of Surface Science and Nanotechnology, 12 238-241, May 20, 2014 Peer-reviewed
Insertion of Presynthesized Particles in the Pores of a Honeycomb Structure by an Aerosol Process

K. Kusdianto, Masao Gen, Mayumi Tsukada,, I. Wuled Lenggoro

Journal of the Society of Powder Technology, Japan, 51(11) 759-764, 2014 Peer-reviewed
A protocol to detect chemical residues using a nanoparticle-based sensor combined with a Raman spectroscopic method

M. Gen, H. Kakuta, Y. Kamimoto, I. W. Lenggoro

19th Regional Symposium on Chemical Engineering, 2012 Peer-reviewedLead author
A Colloidal Route to Detection of Organic Molecules Based on Surface-Enhanced Raman Spectroscopy Using Nanostructured Substrate Derived from Aerosols

Masao Gen, Hideo Kakuta, Yoshihito Kamimoto, I. Wuled Lenggoro

JAPANESE JOURNAL OF APPLIED PHYSICS, 50(6) 06GG10, Jun, 2011 Peer-reviewedLead author
Honey bee exposure to clothianidin -analysis of agrochemicals using surface enhanced Raman spectroscopy

H. Kakuta, M. Gen, Y. Kamimoto, Y. Horikawa

Research Bulletin of Obihiro University, 32 31-36, 2011 Peer-reviewed
Measurement of Model Aerosols Containing Two Metal Components Formed via Cooling and Dilution Routes

N. Hama, Y. Takashima, M. Gen, M. Tsukada, H. Kamiya, I. W. Lenggoro

Earozoru Kenkyu, 26(4) 277-285, 2011 Peer-reviewed

Misc.

From particle engineering to atmospheric chemistry

Masao Gen

Earozoru Kenkyu, 35(1) 60-62, 2020 InvitedLead author
Transport of Aerosol Particles on a Solid Substrate toward Environmental Applications

M. Gen

Earozoru Kenkyu, 31(2) 132-136, Jun, 2016 Lead author

Major Research Projects

エアロゾルと気候変動を繋ぐその場測定法の開発

創発的研究支援事業, 国立研究開発法人科学技術振興機構, Apr, 2021 - Mar, 2028

Profile Information

Research Interests

Research History

Education

Awards

Papers

Misc.

Major Research Projects

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