A flexible and disposable poly(sodium 4-styrenesulfonate)/polyaniline coated glass microfiber paper for sensitive and selective detection of ammonia at room temperature

Autor(es)

Andre, Rafaela S. ^{[1, 2, 3]} ; Chen, Jun ^[4] ; Kwak, Dongwook ^[5] ; Correa, Daniel S. ^{[1, 2]} ; Mattoso, Luiz H. C. ^{[1, 2]} ; Lei, Yu ^[3]

Afiliação do(s) autor(es)

^[1] Embrapa Instrumentacao, Nanotechnol Natl Lab Agr LNNA, BR-13560970 Sao Carlos, SP - Brazil

^[2] Fed Univ Sao Carlos UFSCar, Dept Chem, Ctr Exact Sci & Technol, PPGQ, Dept Chem, BR-13565905 Sao Carlos, SP - Brazil

^[3] Univ Connecticut, Dept Chem & Biomol Engn, 191 Auditorium Rd, Storrs, CT 06269 - USA

^[4] Univ Connecticut, Dept Biomed Engn, 260 Glenbrook Rd, Storrs, CT 06269 - USA

^[5] Univ Connecticut, Dept Mat Sci & Engn, 97 North Eagleville Rd, Storrs, CT 06269 - USA

• Tipo de documento: Artigo Científico
• Fonte: Synthetic Metals; v. 233, p. 22-27, NOV 2017.
• Citações Web of Science: 5

Resumo

Ammonia (NH3) gas monitoring is of outmost importance, once its emission above toxic levels in poultry farms can cause environmental pollution and also pose a threat on the quality of livestock, affecting the poultry production and health. Herein we report on the development of a low cost, flexible and disposable sensor device (GFP@PSS/PANI) for sensitive and selective ammonia detection at room temperature. Specifically, the sensing platform was composed by a glass microfiber paper (GFP) coated with poly(sodium 4-styrenesulfonate) (PSS) through drop-casting and polyaniline (PANI) through in situ polymerization. Various techniques including SEM and FTIR were employed to characterize the as-prepared sensing materials. Upon exposure to ammonia, the developed sensor device shows a rapid, sensitive and reversible response with a limit detection of 125 ppb and good selectivity against other common interferents such as nitrogen dioxide and carbon monoxide, most commonly found in poultry farm environment. This study provides a simple method to prepare a unique room-temperature ammonia sensing platform of low-cost and high performance, which is suitable for monitoring and controlling ammonia level in poultry farms. (AU)

• Processo FAPESP: 16/23793-4 - Desenvolvimento de sensores nanoestruturados visando a detecção de compostos voláteis indicadores da qualidade de alimentos
• Beneficiário: Rafaela da Silveira Andre
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado