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Adv Funct Mater

Title:		Tunable Gas Sensing Gels by Cooperative Assembly
Author(s):		Hussain A; Semeano ATS; Palma S; Pina AS; Almeida J; Medrado BF; Padua A; Carvalho AL; Dionisio M; Li RWC; Gamboa H; Ulijn RV; Gruber J; Roque ACA;
Address:		"UCIBIO, REQUIMTE, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal. UCIBIO, REQUIMTE, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; Departamento de Quimica Fundamental, Instituto de Quimica da Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 748 CEP 05508-000, Sao Paulo, SP, Brasil. UCIBIO, REQUIMTE, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal; Advanced Science Research Center (ASRC), City University of New York, New York 10031, USA. LAQV, REQUIMTE, Departamento de Quimica, Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal. Departamento de Quimica Fundamental, Instituto de Quimica da Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 748 CEP 05508-000, Sao Paulo, SP, Brasil; Centro Universitario Estacio Radial de Sao Paulo, Vila dos Remedios, CEP 05107-001 Sao Paulo, SP, Brasil. Laboratorio de Instrumentacao, Engenharia Biomedica e Fisica da Radiacao (LIBPhys-UNL), Departamento de Fisica, Faculdade de Ciencias e Tecnologia da Universidade Nova de Lisboa, Monte da Caparica, 2892-516 Caparica, Portugal. Advanced Science Research Center (ASRC), City University of New York, New York 10031, USA; 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. Departamento de Quimica Fundamental, Instituto de Quimica da Universidade de Sao Paulo, Av. Prof. Lineu Prestes, 748 CEP 05508-000, Sao Paulo, SP, Brasil"
Journal Title:		Adv Funct Mater
Year:		2017
Volume:		27
Issue:		27
Page Number:		-
DOI:		10.1002/adfm.201700803
ISSN/ISBN:		1616-301X (Print) 1616-3028 (Electronic) 1616-301X (Linking)
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"
Keywords:		gas sensing gelatin ionic liquids liquid crystals self-assembly;
Notes:		"PubMed-not-MEDLINEHussain, Abid Semeano, Ana T S Palma, Susana I C J Pina, Ana S Almeida, Jose Medrado, Barbara F Padua, Ana C C S Carvalho, Ana L Dionisio, Madalena Li, Rosamaria W C Gamboa, Hugo Ulijn, Rein V Gruber, Jonas Roque, Ana C A eng 639123/ERC_/European Research Council/International Germany 2017/07/28 Adv Funct Mater. 2017 Jul 19; 27(27):1700803. doi: 10.1002/adfm.201700803"