2026

Abusrewil, S. et al. (2026) Chitosan molecular weight influences on endodontic biofilms and material enhancement strategies. Dentistry Journal, 14(4), 192. (doi: 10.3390/dj14040192)

2025

Babu, Aswathy, Aliyana, Akshaya Kumar, O’Hara, Christopher, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Boal, Connell, Goswami, Amit, Stylios, George K., Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 and Pillai, Suresh C. (2025) Direct 3D-printed triboactive polymer layers on stretchable conductive fabric for high-performance T-TENGs. Nano Energy, 142(A), 111218. (doi: 10.1016/j.nanoen.2025.111218)

Mulvihill, D. M. et al. (2025) How to test triboelectric nanogenerators: key factors for standardized performance evaluation. Advanced Energy Materials, (doi: 10.1002/aenm.202502920) (Early Online Publication)

Pradhan, A. et al. (2025) The surface-topography challenge: a multi-laboratory benchmark study to advance the characterization of topography. Tribology Letters, 73(3), 110. (doi: 10.1007/s11249-025-02014-y) (PMID:40726540) (PMCID:PMC12296861)

Bairagi, Satyaranjan, Banerjee, Sourav, Shee, Chirantan, Aliyana, Akshaya Kumar, Mukherjee, Rudra ORCID: https://orcid.org/0000-0002-7307-3599, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Stylios, George K., Ali, S. Wazed and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2025) Polyethyleneimine (PEI)-treated multifunctional textile triboelectric nanogenerator: a scalable and cost-effective solution for self-powered electronics, energy harvesting and physiological movement monitoring. Nano Energy, 139, 110990. (doi: 10.1016/j.nanoen.2025.110990)

Sonker, Amit Kumar, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Tideland, Hannah, Bairagi, Satyaranjan, Katiyar, Nirmal Kumar, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Westman, Gunnar (2025) Bendable substrates of cellulose nanocrystals for triboelectric nanogenerators. ACS Applied Nano Materials, 8(19), pp. 9868-9877. (doi: 10.1021/acsanm.5c01087) (PMID:40400700) (PMCID:PMC12090183)

Aazem, Irthasa, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Walden, Ryan, Babu, Aswathy, Goswami, Amit, Hinder, Steven J., Khandelwal, Gaurav ORCID: https://orcid.org/0000-0002-7698-4494, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088, McGranaghan, Gerard and Pillai, Suresh C. (2025) Electroactive phase dependent triboelectric nanogenerator performance of PVDF–TiO2 composites. Energy Advances, 4(5), pp. 683-698. (doi: 10.1039/D4YA00525B)

2024

Kumar Aliyana, Akshaya, Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 and Stylios, George K. (2024) Investigating superior performance by configuring bimetallic electrodes on fabric triboelectric nanogenerators (F-TENGs) for IoT enabled touch sensor applications. Nano Energy, 130, 110125. (doi: 10.1016/j.nanoen.2024.110125)

Menezes, Pedro Duarte, Hunter, Alysha, Dickson, Thomas, Hecht, Soren, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Busek, Mathias, Krauss, Stefan and Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X (2024) Scalable, transparent and micro: 3D printed rapid tooling for injection moulded microfluidics. Advanced Engineering Materials, 26(20), 2400276. (doi: 10.1002/adem.202400276)

Baburaj, Aiswarya, Aliyana, Akshaya Kumar, Naveen Kumar, S. K., Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Stylios, George K (2024) High-performance biodegradable triboelectric nanogenerators based on hydroxypropyl methylcellulose and zinc oxide hybrid composites. Nano Energy, 128(Part B), 109943. (doi: 10.1016/j.nanoen.2024.109943)

Abusrewil, Sumaya, Scott, J. Alun ORCID: https://orcid.org/0000-0003-1536-7035, Alqahtani, Saeed S., Butcher, Mark C., Tiba, Mohammad, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088, Ramage, Gordon ORCID: https://orcid.org/0000-0002-0932-3514 and Mclean, William ORCID: https://orcid.org/0000-0003-4942-7075 (2024) The effect of chitosan incorporation on physico-mechanical and biological characteristics of a calcium silicate filling material. Dentistry Journal, 12(4), 100. (doi: 10.3390/dj12040100)

2023

Bairagi, Satyaranjan, ul-Islam, Shahid-, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Aswathy, Babu, Aliyana, Akshaya Kumar, Stylios, George, Pillai, Suresh C. and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Wearable nanocomposite textile-based piezoelectric and triboelectric nanogenerators: Progress and perspectives. Nano Energy, 118(B), 108962. (doi: 10.1016/j.nanoen.2023.108962)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Laughtland, Kaspar, Bairagi, Satyaranjan, Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Mechanics of Sliding Triboelectric Nanogenerators for Sustainable Energy Harvesting. 17th International Conference on Advances in Experimental Mechanics, Glasgow University Union, University of Glasgow, UK, 30 August 2023 - 01 September 2023.

Gokhool, Shravan, Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506 and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Reflections on boosting wearable triboelectric nanogenerator performance via interface optimisation. Results in Engineering, 17, 100808. (doi: 10.1016/j.rineng.2022.100808)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Perris, Jack, Bairagi, Satyaranjan, Min, Guanbo, Xu, Yang ORCID: https://orcid.org/0000-0002-7111-5134, Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Multiscale in-situ quantification of the role of surface roughness and contact area using a novel Mica-PVS triboelectric nanogenerator. Nano Energy, 107, 108122. (doi: 10.1016/j.nanoen.2022.108122)

Perris, Jack, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Xu, Yang ORCID: https://orcid.org/0000-0002-7111-5134, Tassieri, Manlio ORCID: https://orcid.org/0000-0002-6807-0385, Kartal, Mehmet E., Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) 3D printing and rapid replication of advanced numerically generated rough surface topographies in numerous polymers. Advanced Engineering Materials, 25(1), 2200832. (doi: 10.1002/adem.202200832)

2022

Bairagi, Satyaranjan, Khandelwal, Gaurav ORCID: https://orcid.org/0000-0002-7698-4494, Karagiorgis, Xenofon, Gokhool, Shravan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Min, Guanbo and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2022) High-performance triboelectric nanogenerators based on commercial textiles: electrospun nylon 66 nanofibers on silk and PVDF on polyester. ACS Applied Materials and Interfaces, 14(39), pp. 44591-44603. (doi: 10.1021/acsami.2c13092) (PMID:36150147) (PMCID:PMC9542703)

Walden, Ryan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Pillai, Suresh C. (2022) Opportunities and challenges in triboelectric nanogenerator (TENG) based sustainable energy generation technologies: a mini-review. Chemical Engineering Journal Advances, 9, 100237. (doi: 10.1016/j.ceja.2021.100237)

2021

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Speck, Thomas and Le, Vincent (2021) Local contact formation during sliding on soft adhesive surfaces with complex microstructuring. Tribology International, 163, 107180. (doi: 10.1016/j.triboint.2021.107180)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Speck, Thomas and Le Houerou, Vincent (2021) Effect of Normal Load on Friction Characteristics of Bio-inspired Elastomeric Surfaces. 10th International Conference on Tribology (Balkantrib '20), 20-22 May 2022.

2020

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Favier, Damien, Speck, Thomas and Le Houérou, Vincent (2020) In situ investigation of adhesion mechanisms on complex microstructured biological surfaces. Advanced Materials Interfaces, 7(20), 2000969. (doi: 10.1002/admi.202000969)

2019

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Palacios, Alejandro, Surapaneni, Venkata A., Bold, Georg, Thielen, Marc, Licht, Erik, Higham, Timothy E., Speck, Thomas and Le Houérou, Vincent (2019) Replicating the complexity of natural surfaces: technique validation and applications for biomimetics, ecology and evolution. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377(2138), 20180265. (doi: 10.1098/rsta.2018.0265) (PMID:30967061) (PMCID:PMC6335282)

2018

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Le Houérou, Vincent, Speck, Thomas and Bohn, Holger F. (2018) Straightforward and precise approach to replicate complex hierarchical structures from plant surfaces onto soft matter polymer. Royal Society Open Science, 5(4), 172132. (doi: 10.1098/rsos.172132) (PMID:29765666) (PMCID:PMC5936931)

Articles

Abusrewil, S. et al. (2026) Chitosan molecular weight influences on endodontic biofilms and material enhancement strategies. Dentistry Journal, 14(4), 192. (doi: 10.3390/dj14040192)

Babu, Aswathy, Aliyana, Akshaya Kumar, O’Hara, Christopher, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Boal, Connell, Goswami, Amit, Stylios, George K., Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 and Pillai, Suresh C. (2025) Direct 3D-printed triboactive polymer layers on stretchable conductive fabric for high-performance T-TENGs. Nano Energy, 142(A), 111218. (doi: 10.1016/j.nanoen.2025.111218)

Mulvihill, D. M. et al. (2025) How to test triboelectric nanogenerators: key factors for standardized performance evaluation. Advanced Energy Materials, (doi: 10.1002/aenm.202502920) (Early Online Publication)

Pradhan, A. et al. (2025) The surface-topography challenge: a multi-laboratory benchmark study to advance the characterization of topography. Tribology Letters, 73(3), 110. (doi: 10.1007/s11249-025-02014-y) (PMID:40726540) (PMCID:PMC12296861)

Bairagi, Satyaranjan, Banerjee, Sourav, Shee, Chirantan, Aliyana, Akshaya Kumar, Mukherjee, Rudra ORCID: https://orcid.org/0000-0002-7307-3599, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Stylios, George K., Ali, S. Wazed and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2025) Polyethyleneimine (PEI)-treated multifunctional textile triboelectric nanogenerator: a scalable and cost-effective solution for self-powered electronics, energy harvesting and physiological movement monitoring. Nano Energy, 139, 110990. (doi: 10.1016/j.nanoen.2025.110990)

Sonker, Amit Kumar, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Tideland, Hannah, Bairagi, Satyaranjan, Katiyar, Nirmal Kumar, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Westman, Gunnar (2025) Bendable substrates of cellulose nanocrystals for triboelectric nanogenerators. ACS Applied Nano Materials, 8(19), pp. 9868-9877. (doi: 10.1021/acsanm.5c01087) (PMID:40400700) (PMCID:PMC12090183)

Aazem, Irthasa, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Walden, Ryan, Babu, Aswathy, Goswami, Amit, Hinder, Steven J., Khandelwal, Gaurav ORCID: https://orcid.org/0000-0002-7698-4494, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088, McGranaghan, Gerard and Pillai, Suresh C. (2025) Electroactive phase dependent triboelectric nanogenerator performance of PVDF–TiO2 composites. Energy Advances, 4(5), pp. 683-698. (doi: 10.1039/D4YA00525B)

Kumar Aliyana, Akshaya, Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 and Stylios, George K. (2024) Investigating superior performance by configuring bimetallic electrodes on fabric triboelectric nanogenerators (F-TENGs) for IoT enabled touch sensor applications. Nano Energy, 130, 110125. (doi: 10.1016/j.nanoen.2024.110125)

Menezes, Pedro Duarte, Hunter, Alysha, Dickson, Thomas, Hecht, Soren, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Busek, Mathias, Krauss, Stefan and Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X (2024) Scalable, transparent and micro: 3D printed rapid tooling for injection moulded microfluidics. Advanced Engineering Materials, 26(20), 2400276. (doi: 10.1002/adem.202400276)

Baburaj, Aiswarya, Aliyana, Akshaya Kumar, Naveen Kumar, S. K., Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Stylios, George K (2024) High-performance biodegradable triboelectric nanogenerators based on hydroxypropyl methylcellulose and zinc oxide hybrid composites. Nano Energy, 128(Part B), 109943. (doi: 10.1016/j.nanoen.2024.109943)

Abusrewil, Sumaya, Scott, J. Alun ORCID: https://orcid.org/0000-0003-1536-7035, Alqahtani, Saeed S., Butcher, Mark C., Tiba, Mohammad, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088, Ramage, Gordon ORCID: https://orcid.org/0000-0002-0932-3514 and Mclean, William ORCID: https://orcid.org/0000-0003-4942-7075 (2024) The effect of chitosan incorporation on physico-mechanical and biological characteristics of a calcium silicate filling material. Dentistry Journal, 12(4), 100. (doi: 10.3390/dj12040100)

Bairagi, Satyaranjan, ul-Islam, Shahid-, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Aswathy, Babu, Aliyana, Akshaya Kumar, Stylios, George, Pillai, Suresh C. and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Wearable nanocomposite textile-based piezoelectric and triboelectric nanogenerators: Progress and perspectives. Nano Energy, 118(B), 108962. (doi: 10.1016/j.nanoen.2023.108962)

Gokhool, Shravan, Bairagi, Satyaranjan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506 and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Reflections on boosting wearable triboelectric nanogenerator performance via interface optimisation. Results in Engineering, 17, 100808. (doi: 10.1016/j.rineng.2022.100808)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Perris, Jack, Bairagi, Satyaranjan, Min, Guanbo, Xu, Yang ORCID: https://orcid.org/0000-0002-7111-5134, Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Multiscale in-situ quantification of the role of surface roughness and contact area using a novel Mica-PVS triboelectric nanogenerator. Nano Energy, 107, 108122. (doi: 10.1016/j.nanoen.2022.108122)

Perris, Jack, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Xu, Yang ORCID: https://orcid.org/0000-0002-7111-5134, Tassieri, Manlio ORCID: https://orcid.org/0000-0002-6807-0385, Kartal, Mehmet E., Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2023) 3D printing and rapid replication of advanced numerically generated rough surface topographies in numerous polymers. Advanced Engineering Materials, 25(1), 2200832. (doi: 10.1002/adem.202200832)

Bairagi, Satyaranjan, Khandelwal, Gaurav ORCID: https://orcid.org/0000-0002-7698-4494, Karagiorgis, Xenofon, Gokhool, Shravan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Min, Guanbo and Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 (2022) High-performance triboelectric nanogenerators based on commercial textiles: electrospun nylon 66 nanofibers on silk and PVDF on polyester. ACS Applied Materials and Interfaces, 14(39), pp. 44591-44603. (doi: 10.1021/acsami.2c13092) (PMID:36150147) (PMCID:PMC9542703)

Walden, Ryan, Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Mulvihill, Daniel M. ORCID: https://orcid.org/0000-0003-1693-0088 and Pillai, Suresh C. (2022) Opportunities and challenges in triboelectric nanogenerator (TENG) based sustainable energy generation technologies: a mini-review. Chemical Engineering Journal Advances, 9, 100237. (doi: 10.1016/j.ceja.2021.100237)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Speck, Thomas and Le, Vincent (2021) Local contact formation during sliding on soft adhesive surfaces with complex microstructuring. Tribology International, 163, 107180. (doi: 10.1016/j.triboint.2021.107180)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Favier, Damien, Speck, Thomas and Le Houérou, Vincent (2020) In situ investigation of adhesion mechanisms on complex microstructured biological surfaces. Advanced Materials Interfaces, 7(20), 2000969. (doi: 10.1002/admi.202000969)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Palacios, Alejandro, Surapaneni, Venkata A., Bold, Georg, Thielen, Marc, Licht, Erik, Higham, Timothy E., Speck, Thomas and Le Houérou, Vincent (2019) Replicating the complexity of natural surfaces: technique validation and applications for biomimetics, ecology and evolution. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377(2138), 20180265. (doi: 10.1098/rsta.2018.0265) (PMID:30967061) (PMCID:PMC6335282)

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Le Houérou, Vincent, Speck, Thomas and Bohn, Holger F. (2018) Straightforward and precise approach to replicate complex hierarchical structures from plant surfaces onto soft matter polymer. Royal Society Open Science, 5(4), 172132. (doi: 10.1098/rsos.172132) (PMID:29765666) (PMCID:PMC5936931)

Conference or Workshop Item

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Laughtland, Kaspar, Bairagi, Satyaranjan, Gadegaard, Nikolaj ORCID: https://orcid.org/0000-0002-3396-846X and Mulvihill, Daniel ORCID: https://orcid.org/0000-0003-1693-0088 (2023) Mechanics of Sliding Triboelectric Nanogenerators for Sustainable Energy Harvesting. 17th International Conference on Advances in Experimental Mechanics, Glasgow University Union, University of Glasgow, UK, 30 August 2023 - 01 September 2023.

Kumar, Charchit ORCID: https://orcid.org/0000-0002-6912-3506, Speck, Thomas and Le Houerou, Vincent (2021) Effect of Normal Load on Friction Characteristics of Bio-inspired Elastomeric Surfaces. 10th International Conference on Tribology (Balkantrib '20), 20-22 May 2022.