Tunable Gas Sensing Gels by Cooperative Assembly

Abid Hussain; Ana T. S. Semeano; Susana I. C. J. Palma; Ana S. Pina; José Almeida; Bárbara F. Medrado; Ana C. C. S. Pádua; Ana L. Carvalho; Madalena Dionísio; Rosamaria W. C. Li; Hugo Gamboa; Rein V. Ulijn; Jonas Gruber; Ana C. A. Roque

doi:10.1002/adfm.201700803

journal article·2017-07Open access

Tunable Gas Sensing Gels by Cooperative Assembly

Abid Hussain, Ana T. S. Semeano, Susana I. C. J. Palma, Ana S. Pina, José Almeida, Bárbara F. Medrado, Ana C. C. S. Pádua, Ana L. Carvalho, Madalena Dionísio, Rosamaria W. C. Li, Hugo Gamboa, Rein V. Ulijn, Jonas Gruber, Ana C. A. Roque

Advanced Functional Materials· Volume 27· Issue 27

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Source abstract

Abstract

The cooperative assembly of biopolymers and small molecules can yield functional materials with precisely tunable properties. Here, the fabrication, characterization, and use of multicomponent hybrid gels as selective gas sensors are reported. The gels are composed of liquid crystal droplets self‐assembled in the presence of ionic liquids, which further coassemble with biopolymers to form stable matrices. Each individual component can be varied and acts cooperatively to tune gels' structure and function. The unique molecular environment in hybrid gels is explored for supramolecular recognition of volatile compounds. Gels with distinct compositions are used as optical and electrical gas sensors, yielding a combinatorial response conceptually mimicking olfactory biological systems, and tested to distinguish volatile organic compounds and to quantify ethanol in automotive fuel. The gel response is rapid, reversible, and reproducible. These robust, versatile, modular, pliant electro‐optical soft materials possess new possibilities in sensing triggered by chemical and physical stimuli.

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Research context

OpenAlex topics: Advanced Chemical Sensor Technologies · Cephalopods and Marine Biology · Polydiacetylene-based materials and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

UCIBIO REQUIMTE Departamento de Química Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa 2829‐516 Caparica Portugal

Departamento de Química Fundamental Instituto de Química da Universidade de São Paulo Av. Prof. Lineu Prestes 748 CEP 05508‐000 São Paulo SP Brasil

Advanced Science Research Center (ASRC) City University of New York New York 10031 USA

LAQV REQUIMTE Departamento de Química Faculdade de Ciências e Tecnologia Universidade Nova de Lisboa 2829‐516 Caparica Portugal

Centro Universitário Estácio Radial de São Paulo Vila dos Remédios CEP 05107‐001 São Paulo SP Brasil

Laboratório de Instrumentação Engenharia Biomédica e Física da Radiação (LIBPhys‐UNL) Departamento de Física Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa Monte da Caparica 2892‐516 Caparica Portugal

Hunter College Department of Chemistry and Biochemistry 695 Park Avenue New York NY 10065 USA

PhD Programs in Chemistry and Biochemistry The Graduate Center of the City University of New York New York NY 10016 USA

Funding

European Research Council · European Regional Development Fund

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