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Research Output

Publications

53 peer-reviewed articles, conference papers, and preprints across materials science, optoelectronics, biosensing, and flexible biomedical engineering.
Complete list on Google Scholar →  • 1,685+ citations • h-index 21

2026 — 8 papers

Preprint ★ Selected

Magnetically Tunable Plasmonic Hotspots in Mesoporous Gold for Sensitive Biosensing

E. Ahmed, J. Bashir, A. Ashok, A.S. Nugraha, M. Shahbazi, T. Pejovic, T. Morgan, C. Salomon, Md.S.A. Hossain, M.K. Masud, Y. Yamauchi

Nature Sensors — 2026

mesoporous gold biosensing plasmonics SERS
Preprint ★ Selected

Next Generation Mesoporous Chalcogenides for Tunable Optoelectronics

A. Sharma, A. Ashok, J.F. Fernando, A. Vasanth, D.V. Golberg, Y. Yamauchi

Angewandte Chemie International Edition — 2026

chalcogenides optoelectronics mesoporous materials
Preprint

Electrically Addressable Defect–Dipole States Encode Protein Interactions at TiO2–Metal Interfaces

H. Park, J. Lim, A. Ashok, Y. Jo, J. Seo, H. Kim, J. Bu, J. Kim, Y. Kim, S. Park, A. Terfort, H. Jang

Advanced Materials — 2026

biosensing TiO2 defect engineering protein detection
Preprint

Mesoporous Gold SERS Platform for Early Detection of Ovarian Cancer via Circulating Extracellular Vesicles

M. Hasan, E. Ahmed, A. Ashok, S. Chowdhury, A. Lai, D. Guanzon, K. Scholz-Romero, N. Islam, Md.S.A. Hossain, C. Salomon, M.K. Masud, Y. Yamauchi

ACS Materials and Interfaces — 2026

mesoporous gold SERS cancer detection extracellular vesicles
Preprint

Metal Nanoarchitectonics as Scaffold for microRNA Sensing

H. Park, M.K. Masud, A.S. Nugraha, C-H. Liu, A. Vasanth, A. Ashok, S.M.A. Hossain, E. Ahmed, T. Pejovic, T. Morgan, J. Hooper, A. Lai, D. Guanzon, Y.V. Kaneti, M.S.A. Hossain, C. Salomon, Y. Yamauchi, M.K. Masud

RSC Chemical Society Reviews — 2026

nanoarchitectonics microRNA sensing biosensing gold
Preprint ★ Selected

A Scalable Spin-Coating Strategy for Mesoporous Gold Thin Films

A. Ashok, E. Ahmed, A. Vasanth, M.H.M. Leung, Md.S.A. Hossain, M.K. Masud, C.S. Gallo, Y. Yamauchi

Advanced Science — 2026

mesoporous gold thin films spin coating fabrication
Journal Article

Flexible and Stretchable Silicon Carbide Nanomembranes for Implantable Applications

T.A. Truong, R. Almasry, X. Huang, S. Zhao, M.J. Barton, T.B. Dang, R. Reshamwala, J. Ingles, M. Xu, P.T. Phan, A.J. Cheng, A. Ashok, A.A. Abed, Y. Qiu, J. Liu, T.K. Nguyen, T.N. Do, N.T. Nguyen, H. Zhao, H.P. Phan

ACS Applied Nano Materials — 2026

silicon carbide flexible electronics implantable devices

2025 — 9 papers

Journal Article

Wireless, 3D Optical Sensor Fabricated Using Mechanical Buckling for Navigation and Agriculture Applications

C.C. Nguyen, J. Cerezo, T.B. Dang, S. Zhao, M. Torok, A. Vasanth, A. Ashok, M. Deghat, T.N. Do, H.P. Phan

Advanced Material Technologies — 2025

3D sensors flexible electronics mechanical buckling
Journal Article

Plasmonic Mesoporous Gold-Based SERS Biosensor for Ovarian Cancer-Derived Extracellular Vesicles

J. Bashir, M.K. Masud, A.S. Nugraha, C-H. Liu, A. Vasanth, A. Ashok, S.M.A. Hossain, E. Ahmed, T. Pejovic, T. Morgan, J. Hooper, A. Lai, D. Guanzon, Y.V. Kaneti, M.S.A. Hossain, C. Salomon, Y. Yamauchi, M.K. Masud

Small — 2025

mesoporous gold SERS biosensor ovarian cancer
Journal Article ★ Selected

Nanoarchitectured CuTe Thin Films: A Next-Generation Platform for Ultra-Sensitive Biosensing

A. Vasanth, A. Ashok, H.N. Nam, Q.M. Phung, H.P. Phan, Md.S.A. Hossain, Y. Yamauchi

ACS Nano — 2025

CuTe thin films biosensing nanoarchitectonics
Journal Article

Materials Advances in Devices for Heart Disease Interventions

G.K. Jalandhra, L. Srethbhakdi, J. Davies, C.C. Nguyen, P.T. Phan, Z. Och, A. Ashok, K.S. Lim, H.P. Phan, T.N. Do, N.H. Lovell, J.R. Kovacina

Advanced Materials — 2025

biomedical devices cardiac materials science
Journal Article

Motor-free Soft Robots for Minimally Invasive Surgery

C.C. Nguyen, J. Davies, A. Ashok, T.T. Hoang, A. Ahteda, D.T. Bach, E. Nicotra, H.A. Tran, B. Sharma, K. Zhu, P.T. Phan, A. Ji, J.J. Wan, O. Vittorio, H.P. Phan, N.H. Lovell, T.N. Do

Advanced Healthcare Materials — 2025

soft robotics minimally invasive surgery flexible devices
Journal Article

Flexible Electrode Arrays Based on Wide Bandgap Semiconductors for Chronic Implantable Multiplexed Sensing and Heart Pacemakers

T.A. Truong, X. Huang, M. Barton, A. Ashok, A.A. Abed, R. Almasri, M.N. Shivdasani, R. Reshamwala, J. Ingles, M.T.T. Mai, C. Nguyen, S. Zhao, X. Zhang, Z. Gu, A. Vasanth, S. Peng, T.K. Nguyen, T.N. Do, N.T. Nguyen, H. Zhao, H.P. Phan

ACS Nano — 2025

wide bandgap semiconductors implantable devices pacemakers flexible electronics
Journal Article ★ Selected

Tailored Design of Trimetallic Mesoporous Au–Ag–Cu Alloys for Maximizing Electrochemical Applications

H. Park, A. Ashok, M.K. Masud, M. Kim, J. Otte, Md.S. Hossain, Y.V. Kaneti, Y. Yamauchi

ACS Nano — 2025

mesoporous metals gold alloys electrochemistry biosensing

2024 — 4 papers

Journal Article

2D Mesoporous Carbon with Hollow Turtle Shell-like Morphology for Resolving Restacking Effect

J. Earnshaw, A. Ashok, K.K. Leong, J. Kim, M. Kim, Y. Yamauchi

Small — 2024

mesoporous carbon 2D materials supercapacitors
Journal Article

Dealloying Strategies for Mesoporous AuCu Nanoparticles: Impact on Internal Metallic Structure and Electrocatalytic Performance

A.S. Nugraha, A. Ashok, W. Xia, H. Miyata, S.M. Alshehri, T. Ahamad, Y. Bando, M. Han, Y. Yamauchi

Small Structures — 2024

mesoporous gold dealloying electrocatalysis
Journal Article

Mesoporous Gold: Substrate-Dependent Growth Dynamics, Strain Accumulation, and Electrocatalytic Activity for Biosensing

H. Park, M.K. Masud, A. Ashok, M. Kim, Md.A. Wahab, J. Zhou, Y. Terasawa, C.S. Gallo, N.T. Nguyen, Md.S. Hossain, Y. Yamauchi, Y.V. Kaneti

Small — 2024

mesoporous gold biosensing electrocatalysis thin films
Journal Article

Nanoarchitectonics of Point-of-Care Diagnostics for Sweat Biomarkers Analysis

X. Lin, A. Vasanth, A. Ashok, Md.F. Ahmed, H.P. Phan, Md.N. Islam, Y.V. Kaneti, Md.S.A. Hossain, Y. Yamauchi, M.K. Masud

Nano Materials Science — 2024

point-of-care wearable sensors sweat biomarkers nanoarchitectonics

2023 — 9 papers

Journal Article

Hierarchical Bimetallic Metal-Organic Frameworks with Controllable Assembling Sub-Units and Interior Architectures for Enhanced Ammonia Detection

S. Chowdhury, N.L. Torad, M. Godara, A.A.M. El-Amir, A. Ashok, Md.R. Karim, I.A. Alnaser, W. Chaikittisilp, N. Ray, Y. Yamauchi, Y.V. Kaneti

Chemical Engineering Journal — 2023

MOF ammonia sensing bimetallic gas sensors
Journal Article

Synergistic Mesoporous Bimetallic Gold-Silver Nanoparticles: Synthesis, Structure, and Superior Electrocatalytic Activity

A.S. Nugraha, M. Han, A. Ashok, Y. Kang, S.M. Alshehri, T. Ahamad, Y. Yamauchi, Y. Bando

Nano Energy — 2023

bimetallic nanoparticles gold silver electrocatalysis
Journal Article

Engineering Route for Stretchable, 3D Microarchitectures of Wide Bandgap Semiconductors for Biomedical Applications

T.A. Truong, T.K. Nguyen, X. Huang, A. Ashok, S. Yadav, Y. Park, M.T. Thai, N.K. Nguyen, H. Fallahi, Y.C. Toh, Y. Yamauchi, C.H. Wang, N.H. Lovell, J.A. Rogers, S. Peng, T.N. Do, N.T. Nguyen, H. Zhao, H.P. Phan

Advanced Functional Materials — 2023

wide bandgap semiconductors 3D electronics biomedical devices stretchable
Journal Article

Enlarging the Porosity of Metal-Organic Framework Derived Carbons for Supercapacitor Applications by Template-Free Ethylene Glycol Etching Method

R. Xin, M. Kim, P. Cheng, A. Ashok, S. Chowdhury, T. Park, A. Azhar, Md.S.A. Hossain, J. Tang, J.W. Yi, Y. Yamauchi, Y.V. Kaneti, J. Na

Journal of Materials Chemistry A — 2023

MOF porous carbon supercapacitors energy storage
Journal Article

Co, Fe and N Co-Doped 1D Assembly of Hollow Carbon Nanoboxes for High-Performance Supercapacitors

M. Kim, C. Wang, J. Earnshaw, T. Park, N. Amirilian, A. Ashok, J. Na, M. Han, A.E. Rowan, J. Li, J.W. Yi, Y. Yamauchi

Journal of Materials Chemistry A — 2023

carbon nanoboxes supercapacitors energy storage
Journal Article ★ Selected

Flexible Nanoarchitectonics for Biosensing and Physiological Monitoring Applications

A. Ashok, T.K. Nguyen, M. Barton, M. Leitch, M.K. Masud, H. Park, T.A. Truong, Y.V. Kaneti, H.T. Ta, X. Li, K. Liang, T.H. Do, C.H. Wang, N.T. Nguyen, Y. Yamauchi, H.P. Phan

Small — 2023

flexible electronics biosensing physiological monitoring nanoarchitectonics

2022 — 8 papers

Journal Article

Expeditious Electrochemical Synthesis of Mesoporous Chalcogenide Flakes: Mesoporous Cu2Se as a Potential High-Rate Anode for Sodium-Ion Battery

T. Nagaura, J. Li, J.F. Fernando, A. Ashok, A. Alowasheeir, A.K. Nanjundan, S. Lee, D.V. Golberg, J. Na, Y. Yamauchi

Small — 2022

chalcogenides sodium-ion battery electrochemical synthesis Cu2Se
Journal Article ★ Selected

MOF-Derived Nanoporous Carbons with Exotic Nanoarchitectures

M. Kim, R. Xin, J. Earnshaw, J. Tang, J. Hill, A. Ashok, A.K. Nanjundan, J. Kim, C. Young, Y. Sugahara, J. Na, Y. Yamauchi

Nature Protocols — 2022

MOF nanoporous carbon nanoarchitectonics synthesis protocols
Journal Article

Template- and Etching-Free Fabrication of Two-Dimensional Hollow Bimetallic Metal-Organic Framework Hexagonal Nanoplates for Ammonia Sensing

S. Chowdhury, N.L. Torad, A. Ashok, G. Gumilar, W. Chaikittisilp, R. Xin, P. Cheng, M.I. Hoque, Md.A. Wahab, M.R. Karim, B. Yuliarto, Md.S.A. Hossain, Y. Yamauchi, Y.V. Kaneti

Chemical Engineering Journal — 2022

MOF ammonia sensing gas sensors 2D materials
Journal Article

Integrated, Transparent Silicon Carbide Electronics and Sensors for Radio Frequency Biomedical Therapy

T.K. Nguyen, S. Yadav, M. Han, P.G. Duran, T. Dinh, A. Ashok, H. Vu, V. Dau, D. Haasmann, L. Chen, Y. Park, Y. Yamauchi, J.A. Rogers, N.T. Nguyen, H.P. Phan

ACS Nano — 2022

silicon carbide biomedical devices flexible electronics RF therapy
Journal Article

Ultra-Stable Sodium Ion Storage of Biomass Porous Carbon Derived from Sugarcane

M. Kim, J.F. Fernando, Z. Li, A. Alowasheeir, A. Ashok, R. Xin, D. Martin, A.K. Nanjundan, D.V. Golberg, Y. Yamauchi, N. Amiralian

Chemical Engineering Journal — 2022

porous carbon sodium-ion battery energy storage
Journal Article

Differentiation of Induced Pluripotent Stem Cells to Cardiomyocytes on Cellulose Nanofibril Substrate

M.R. Poorna, S. Pravallika, A. Ashok, S. Sudhindran, M.V. Thampi, P.K. Varma, U. Mony

Biochemical Engineering Journal — 2022

stem cells cardiomyocytes bioengineering
Journal Article

Nanoarchitectured Superparamagnetic Iron Oxide-Doped Mesoporous Carbon Nanozymes for Glucose Sensing

Md.A. Wahab, S.M.A. Hossain, M.K. Masud, H. Park, A. Ashok, M. Mustapić, M. Kim, D. Patel, M. Shahbazi, Y. Yamauchi, Md.S.A. Hossain, Y.V. Kaneti

Sensors and Actuators B: Chemical — 2022

glucose sensing nanozymes mesoporous carbon biosensing

2021 — 6 papers

Journal Article

κ-Carrageenan Gel Mediated Mesoporous Gold-Based Chronocoulometric Sensor for Ultrasensitive Detection of microRNA

B. Salahuddin, M.K. Masud, S. Aziz, C.H. Liu, N. Amiralian, A. Ashok, S.M. Azad Hossain, H. Park, Md.A. Wahab, Md.A. Amin, M.A. Chari, A.E. Rowan, Y. Yamauchi, Md.S.A. Hossain, Y.V. Kaneti

Bulletin of the Chemical Society of Japan — 2021

mesoporous gold microRNA detection biosensing electrochemistry
Journal Article

Heterostructuring Mesoporous 2D Iridium Nanosheets with Amorphous Nickel Boron Oxide Layers to Improve Electrolytic Water Splitting

Y. Kang, B. Jiang, V. Malgras, Y. Guo, O. Cretu, K. Kimoto, A. Ashok, Z. Wan, H. Li, Y. Sugahara, Y. Yamauchi

Small Methods — 2021

water splitting electrocatalysis 2D materials iridium
Journal Article

KOH-Activated Hollow ZIF-8 Derived Porous Carbon: Nanoarchitectured Control for Upgraded Capacitive Deionization and Supercapacitor

M. Kim, X. Xu, R. Xin, J. Earnshaw, A. Ashok, J. Kim, T. Park, A.K. Nanjundan, W.A. El-Said, J.W. Yi, J. Na, Y. Yamauchi

ACS Applied Materials & Interfaces — 2021

porous carbon supercapacitors MOF energy storage
Journal Article

Universal Electrochemical Synthesis of Mesoporous Chalcogenide Semiconductors: Mesoporous CdSe and CdTe Thin Films for Optoelectronic Applications

T. Nagaura, H.P. Phan, V. Malgras, T.A. Pham, H. Lim, A. Ashok, J. Kim, J. You, N.T. Nguyen, J. Na, Y. Yamauchi

Angewandte Chemie International Edition — 2021

chalcogenides mesoporous semiconductors optoelectronics electrochemical synthesis
Journal Article

Mesoporous Alumina-Titania Composites with Enhanced Molybdenum Adsorption towards Medical Radioisotope Production

D.P. Benu, J. Earnshaw, A. Ashok, K. Tsuchiya, I. Saptiama, B. Yuliarto, V. Suendo, R.R. Mukti, N. Fukumitsu, K. Ariga, Y.V. Kaneti, Y. Yamauchi

Bulletin of the Chemical Society of Japan — 2021

mesoporous alumina radioisotope production medical applications

2019 — 2 papers

Journal Article

Spray Pyrolysis Coated Nano-Clustered CdTe on Amorphous Si Thin Films for Heterojunction Solar Cells

A. Ashok, S.V. Nair, M. Shanmugam

Applied Nanoscience — 2019

solar cells CdTe thin films photovoltaics
Journal Article

Atomically Thin 2D Layered MoS2 Enabled Photocurrent Characteristics in TiO2 Nanoparticle Films

G. Gopakumar, A. Ashok, S.V. Nair, M. Shanmugam

Applied Nanoscience — 2019

MoS2 2D materials TiO2 photovoltaics

2018 — 6 papers

Journal Article

On the Physics of Dispersive Electron Transport Characteristics in SnO2 Nanoparticle Based Dye Sensitized Solar Cells

A. Ashok, S.N. Vijayaraghavan, G.E. Unni, S.V. Nair, M. Shanmugam

Nanotechnology — 2018

solar cells SnO2 charge transport DSSC
Journal Article

Understanding Hysteresis Behavior in SnO2 Nanofiber Based Dye Sensitized Solar Cell

A. Ashok, S.N. Vijayaraghavan, S.V. Nair, M. Shanmugam

IEEE Journal of Photovoltaics — 2018

solar cells SnO2 hysteresis DSSC
Journal Article

Cost Effective Natural Photo-Sensitizer from Upcycled Jackfruit Rags for Dye Sensitized Solar Cell Application

A. Ashok, S.E. Mathew, S.B. Shivaram, S. Shankarappa, S.V. Nair, M. Shanmugam

Journal of Science: Advanced Materials and Devices — 2018

solar cells natural dyes DSSC sustainable materials
Journal Article

Two Dimensional Layered Electron Transport Bridges in Mesoscopic TiO2 for Dye Sensitized Solar Cell Applications

G. Gopakumar, H. Menon, A. Ashok, S.V. Nair, M. Shanmugam

Electrochimica Acta — 2018

2D materials TiO2 DSSC solar cells
Journal Article

All Spray Pyrolysis Coated CdTe-TiO2 Heterogeneous Films for Photo-Electrochemical Solar Cells

S.N. Vijayaraghavan, A. Ashok, G. Gopakumar, H. Menon, S.V. Nair, M. Shanmugam

Materials for Renewable and Sustainable Energy — 2018

solar cells CdTe thin films photovoltaics
Journal Article

MoO3 Surface Passivation on TiO2: An Efficient Approach to Minimize Loss in Fill Factor and Maximum Power of Dye Sensitized Solar Cell

G. Gopakumar, A. Ashok, S.N. Vijayaraghavan, S.V. Nair, M. Shanmugam

Applied Surface Science — 2018

solar cells MoO3 surface passivation DSSC

2017 — 1 paper

Journal Article

Molybdenum Trioxide Thin Film Recombination Barrier Layers for Dye Sensitized Solar Cells

A. Ashok, S.N. Vijayaraghavan, S.V. Nair, M. Shanmugam

RSC Advances — 2017

solar cells MoO3 thin films DSSC