| Full text | |
| Author(s): |
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]
Total Authors: 6
|
| Affiliation: | [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
Total Affiliations: 5
|
| Document type: | Journal article |
| Source: | Synthetic Metals; v. 233, p. 22-27, NOV 2017. |
| Web of Science Citations: | 5 |
| Abstract | |
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) | |
| FAPESP's process: | 16/23793-4 - Development of nanostructured sensor aiming the detection of volatile compounds for food quality indicators |
| Grantee: | Rafaela da Silveira Andre |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |