Prof. George G. Malliaras Profile

Prof. George G. Malliaras

Professor at Univ of Cambridge

SPIE Involvement:

Conference Program Committee | Author

Publications (23)

Proceedings Article | 3 October 2022 Presentation

Presentation

Multi-scale ordering of PEDOT and PSS in the presence of ionic salts enables water-stable 2D/3D printable conductors and devices (Conference Presentation)

Laine Taussig, Masoud Ghasemi, Sanggil Han, Tatiana Proksch, Ruipeng Li, Enrique Gomez, Albert Kwansa, Yaroslava Yingling, George Malliaras, Aram Amassian

Proceedings Volume PC12211, PC122110F (2022) https://doi.org/10.1117/12.2633568

KEYWORDS: Solid state electronics, Crystals, Water, Transmission electron microscopy, Thin films, Printing, Photovoltaics, Optoelectronics, Molecular self-assembly, Electrodes

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Proceedings Article | 18 September 2018 Presentation

Presentation

Neuromorphic devices based on organic mixed conductors (Conference Presentation)

Paschalis Gkoupidenis, Dimitrios Koutsouras, George Malliaras

Proceedings Volume 10738, 107380B (2018) https://doi.org/10.1117/12.2320100

KEYWORDS: Signal processing, Interfaces, Biology, Electronic filtering, Transistors, Synaptic plasticity, Biosensing

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Proceedings Article | 19 September 2017 Presentation

Presentation

Organic neuromorphic devices based on electrochemical concepts (Conference Presentation)

Paschalis Gkoupidenis, Dimitrios Koutsouras, Thomas Lonjaret, Shahab Rezaei-Mazinani, Esma Ismailova, Jessamyn Fairfield, George Malliaras

Proceedings Volume 10366, 1036602 (2017) https://doi.org/10.1117/12.2272693

KEYWORDS: Transistors, Data processing, Synaptic plasticity, Microelectronics, Neurons, Liquids, Interfaces

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Proceedings Article | 7 November 2016 Presentation

Presentation

Conducting polymer scaffolds for electrical control of cellular functions (Conference Presentation)

Sahika Inal, Alwin Wan, Tiffany Williams, Emmanuel Giannelis, Claudia Fischbach-Teschl, Delphine Gourdon, Róisín Owens, George Malliaras

Proceedings Volume 9944, 99440Q (2016) https://doi.org/10.1117/12.2238526

KEYWORDS: Polymers, Switching, Diagnostics, Chemistry, In vitro testing, Tissues, Transistors, Network architectures, Mining, Smart materials

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Considering the limited physiological relevance of 2D cell culture experiments, significant effort was devoted to the development of materials that could more accurately recreate the in vivo cellular microenvironment, and support 3D cell cultures in vitro. (1) One such class of materials is conducting polymers, which are promising due to their compliant mechanical properties, compatibility with biological systems, mixed electrical and ionic conductivity, and ability to form porous structures. (2) In this work, we report the fabrication of a single component, macroporous scaffold made from poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) via an ice-templating method. (3) PEDOT:PSS scaffolds offer tunable pore size, morphology and shape through facile changes in preparation conditions, and are capable of supporting 3D cell cultures due to their biocompatibility and tissue-like elasticity. Moreover, these materials are functional: they exhibit excellent electrochemical switching behavior and significantly lower impedance compared to films. Their electrochemical activity enables their use in the active channel of a state of the art diagnostic tool in the field of bioelectronics, i.e., the organic electrochemical transistor (OECT). The inclusion of cells within the porous architecture affects the impedance of the electrically-conducting polymer network and, thus, may be used as a method to quantify cell growth. The adhesion and pro-angiogenic secretions of mouse fibroblasts cultured within the scaffolds can be controlled by switching the electrochemical state of the polymer prior to cell-seeding. In summary, these smart materials hold promise not only as extracellular matrix-mimicking structures for cell culture, but also as high-performance bioelectronic tools for diagnostic and signaling applications. References [1] M. Holzwarth, P. X. Ma, Journal of Materials Chemistry, 21, 10243‐10251 (2011). [2] L. H. Jimison, J. Rivnay, R. M. Owens, in Organic Electronics, Wiley‐VCH Verlag GmbH and Co. KGaA, 27‐6 (2013). [3] A. M.-D. Wan, S. Inal, T. Williams et al. Journal of Materials Chemistry B, DOI: 10.1039/C5TB00390C (2015).

Proceedings Article | 5 October 2015 Open Access

Open Access

Presentation

Interfacing with the brain using organic electronics (Presentation Recording)

George Malliaras

Proceedings Volume 9568, 956825 (2015) https://doi.org/10.1117/12.2195526

KEYWORDS: Brain, Organic electronics, Electrodes, Transistors, Diagnostics, Brain-machine interfaces, Physiology, Pathology, Therapeutics, Mining

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Proceedings Article | 5 October 2015 Presentation

Presentation

A better understanding of organic electrochemical transistors for biosensing applications (Presentation Recording)

Jacob Friedlein, George Malliaras, Sean Shaheen, Robert McLeod

Proceedings Volume 9568, 95681H (2015) https://doi.org/10.1117/12.2190417

KEYWORDS: Transistors, Biosensing, Glucose, Signal detection, Brain, Physics, Biosensors, Mining, Video, Sensors

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Proceedings Article | 31 August 2015 Paper

Paper

Fully printed metabolite sensor using organic electrochemical transistor

Gaëtan Scheiblin, Abdelkader Aliane, Romain Coppard, Róisín Owens, Pascal Mailley, George Malliaras

Proceedings Volume 9568, 95681E (2015) https://doi.org/10.1117/12.2186385

KEYWORDS: Electrodes, Sensors, Transistors, Glucose, Printing, Fabrication, Biosensing, Polymers, Platinum, Interfaces

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Proceedings Article | 8 September 2011 Paper

Paper

Wearable electrochemical sensors for monitoring performance athletes

Kevin Fraser, Vincenzo Curto, Shirley Coyle, Benjamin Schazmann, Robert Byrne, Fernando Benito-Lopez, Róisín Owens, George Malliaras, Dermot Diamond

Proceedings Volume 8118, 81180C (2011) https://doi.org/10.1117/12.895109

KEYWORDS: Sensors, Liquids, Biosensors, Transistors, Sodium, Proteins, Glucose, Chemical fiber sensors, Single sideband modulation, Polymers

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Proceedings Article | 8 September 2011 Paper

Paper

Electrochemical transistors with ionic liquids for enzymatic sensing

Kevin Fraser, Sang Yoon Yang, Fabio Cicoira, Vincenzo Curto, Robert Byrne, Fernando Benito-Lopez, Dion Khodagholy, Róisín Owens, George Malliaras, Dermot Diamond

Proceedings Volume 8118, 81180U (2011) https://doi.org/10.1117/12.894412

KEYWORDS: Liquids, Glucose, Ions, Transistors, Sensors, Electrodes, Polymers, Sodium, Biosensing, Chemistry

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Proceedings Article | 30 March 2010 Paper

Paper

Orthogonal lithography for organic electronics

Priscilla Taylor, Jin-Kyun Lee, Alexander Zakhidov, Ha Soo Hwang, John DeFranco, Hon Hang Fong, Margarita Chatzichristidi, Eisuke Murotani, George Malliaras, Christopher Ober

Proceedings Volume 7639, 76390Z (2010) https://doi.org/10.1117/12.848410

KEYWORDS: Organic electronics, Optical lithography, Photoresist materials, Lithography, Fluorine, Electron beam lithography, Polymers, Organic materials, Organic light emitting diodes, Silicon

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Proceedings Article | 21 August 2009 Paper

Paper

Structure vs. property relationships in high mobility fused thiophene polymers

Mingqian He, Jianfeng Li, Michael Sorensen, Feixia Zhang, Hon Hang Fong, Vladimir Pozdin, Detlef Smilgies, George Malliaras

Proceedings Volume 7417, 74170F (2009) https://doi.org/10.1117/12.826014

KEYWORDS: Polymers, Field effect transistors, Crystals, Molecules, Scattering, Head-mounted displays, Silica, Transistors, Semiconductors, Annealing

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Proceedings Article | 2 February 2001 Paper

Paper

Hole injection from indium tin oxide into triphenyl diamine

Yulong Shen, Daniel Jacobs, George Malliaras

Proceedings Volume 4105, (2001) https://doi.org/10.1117/12.416881

KEYWORDS: Telescopic pixel displays, Indium, Tin, Oxides, Data modeling, Interfaces, Solids, Organic semiconductors, Aluminum, Thin film devices

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Proceedings Article | 17 December 1999 Paper

Paper

Light-emitting diodes based on a liquid-crystalline oxadiazole derivative

Rong Fan, Dragana Culjkovic, Pongpun Piromreun, Michael Turon, Jason Langseth, George Malliaras, Shihai Gu, Ludmila Sukhomlinova, Robert Twieg

Proceedings Volume 3797, (1999) https://doi.org/10.1117/12.372707

KEYWORDS: Crystals, Liquid crystals, Multilayers, Organic light emitting diodes, Light emitting diodes, Diodes, Liquids, Crystallography, Molecules, Information operations

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Proceedings Article | 16 December 1998 Paper

Paper

Injection, transport, and recombination in organic light-emitting diodes

J. Campbell Scott, George Malliaras, Jesse Salem, Phillip Brock, L. Bozano, Sue Carter

Proceedings Volume 3476, (1998) https://doi.org/10.1117/12.332604

KEYWORDS: Electrons, Electrodes, Organic light emitting diodes, Diodes, Quantum efficiency, Polymers, Interfaces, Excitons, Diffusion, Numerical simulations

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Proceedings Article | 1 November 1996 Paper

Paper

Preparation of photovoltaic cells from sexithiophene-C60 blends

S. Veenstra, George Malliaras, Hendrik-Jan Brouwer, F. Esselink, Victor Krasnikov, Paul van Hutten, Jurjen Wildeman, H. Jonkman, George Sawatzky, Georges Hadziioannou

Proceedings Volume 2852, (1996) https://doi.org/10.1117/12.256183

KEYWORDS: Photovoltaics, Polymers, Excitons, Electrons, Crystals, Solar cells, Luminescence, Heterojunctions, Diffusion, Transmission electron microscopy

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Proceedings Article | 15 October 1996 Paper

Paper

Space-charge field formation in poly(N-vinylcarbazole)-based photorefractive composites

George Malliaras, Victor Krasnikov, Henk Bolink, Georges Hadziioannou

Proceedings Volume 2850, (1996) https://doi.org/10.1117/12.254247

KEYWORDS: Polymers, Composites, Electro optical modeling, Phase shifts, Photorefractive polymers, Diffusion, Molecules, Nonlinear optics, Diffraction, Modulation

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Proceedings Article | 15 October 1996 Paper

Paper

Control of charge trapping in a novel photorefractive composite consisting of a bifunctional molecule based on TPD

Henk Bolink, C. Arts, Victor Krasnikov, George Malliaras, Georges Hadziioannou

Proceedings Volume 2850, (1996) https://doi.org/10.1117/12.254252

KEYWORDS: Molecules, Telescopic pixel displays, Phase shifts, Composites, Refractive index, Photorefractive polymers, Electro optics, Polymers, Modulation, Oxidation

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Proceedings Article | 5 October 1995 Paper

Paper

Transient photorefractive gratings in polymers

George Malliaras, Victor Krasnikov, Henk Bolink, Georges Hadziioannou

Proceedings Volume 2527, (1995) https://doi.org/10.1117/12.222795

KEYWORDS: Polymers, Composites, Diffraction, Diffraction gratings, Electro optics, Molecules, Image processing, Crystals, Temperature metrology, Photorefractive polymers

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Proceedings Article | 23 August 1995 Paper

Paper

Photorefractive host-guest systems and fully functionalized polymers

Henk Bolink, Igna van der Weide, George Malliaras, Victor Krasnikov, Georges Hadziioannou

Proceedings Volume 2526, (1995) https://doi.org/10.1117/12.217312

KEYWORDS: Polymers, Molecules, Electro optics, Telescopic pixel displays, Photorefractive polymers, Glasses, Photorefraction, Absorption, Transparency, Electro optic polymers

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Proceedings Article | 23 August 1995 Paper

Paper

Charge trapping in photorefractive polymers

George Malliaras, Victor Krasnikov, Henk Bolink, Georges Hadziioannou

Proceedings Volume 2526, (1995) https://doi.org/10.1117/12.217307

KEYWORDS: Molecules, Phase shifts, Photorefractive polymers, Composites, Diffraction, Polymers, Ionization, Electro optics, Diffraction gratings, Holography

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Proceedings Article | 16 December 1993 Paper

Paper

Silicon-based donor-acceptor compounds: synthesis and nonlinear optical characterization

Diny Hissink, Henk Bolink, Jan-Willem Eshuis, Paul van Hutten, George Malliaras, Georges Hadziioannou

Proceedings Volume 2025, (1993) https://doi.org/10.1117/12.165285

KEYWORDS: Silicon, Molecules, Chemical species, Absorption, Transparency, Visible radiation, Spectroscopy, Polymers, Bromine, Crystals

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Proceedings Article | 16 December 1993 Paper

Paper

Photorefractive polymer materials

Henk Bolink, Victor Krasnikov, George Malliaras, Georges Hadziioannou

Proceedings Volume 2025, (1993) https://doi.org/10.1117/12.165266

KEYWORDS: Polymers, Electro optics, Electro optic polymers, Refractive index, Crystals, Photorefraction, Polymer thin films, Molecules, Polyurethane, Photorefractive polymers

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Proceedings Article | 16 December 1993 Paper

Paper

Color tuning of poly[(silanylene)thiophene] block copolymers

George Malliaras, J. Herrema, Jurjen Wildeman, Richard Gill, R. Wieringa, S. Lampoura, Georges Hadziioannou

Proceedings Volume 2025, (1993) https://doi.org/10.1117/12.165282

KEYWORDS: Polymers, Electroluminescence, Indium, Electrons, Absorption, Electrodes, Luminescence, Optical properties, Thin films, Silver

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Showing 5 of 23 publications

Proceedings Volume Editor (3)

SPIE Conference Volume | 20 August 2009

Organic Semiconductors in Sensors and Bioelectronics II

SPIE Conference Volume | 25 August 2008

Organic Field-Effect Transistors VII and Organic Semiconductors in Sensors and Bioelectronics

SPIE Conference Volume | 13 September 2007

Organic-based Chemical and Biological Sensors

Conference Committee Involvement (21)

Organic and Hybrid Sensors and Bioelectronics XVII

19 August 2024 | San Diego, California, United States

Organic and Hybrid Sensors and Bioelectronics XVI

20 August 2023 | San Diego, California, United States

Organic and Hybrid Sensors and Bioelectronics XV

21 August 2022 | San Diego, California, United States

Organic and Hybrid Sensors and Bioelectronics XIV

1 August 2021 | San Diego, California, United States

Organic and Hybrid Sensors and Bioelectronics XIII

24 August 2020 | Online Only, California, United States

Organic and Hybrid Sensors and Bioelectronics XII

11 August 2019 | San Diego, California, United States

Organic and Hybrid Sensors and Bioelectronics XI

19 August 2018 | San Diego, California, United States

Organic Sensors and Bioelectronics X

6 August 2017 | San Diego, California, United States

Organic Sensors and Bioelectronics IX

28 August 2016 | San Diego, California, United States

Organic Sensors and Bioelectronics VIII

9 August 2015 | San Diego, California, United States

Organic Semiconductors in Sensors and Bioelectronics II

5 August 2009 | San Diego, California, United States

Organic Semiconductors in Sensors and Bioelectronics

10 August 2008 | San Diego, California, United States

Organic-based Chemical and Biological Sensors

28 August 2007 | San Diego, California, United States

Organic Field-Effect Transistors V

13 August 2006 | San Diego, California, United States

Organic Photovoltaics VI

2 August 2005 | San Diego, California, United States

Organic Field-Effect Transistors IV

31 July 2005 | San Diego, California, United States

Organic Photovoltaics V

4 August 2004 | Denver, Colorado, United States

Organic Field Effect Transistors III

3 August 2004 | Denver, Colorado, United States

Organic Photovoltaics IV

7 August 2003 | San Diego, California, United States

Organic Field Effect Transistors II

3 August 2003 | San Diego, California, United States

Photonic Materials and Devices

18 September 2001 | Tucson, AZ, United States

Showing 5 of 21 Conference Committees

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