Fluctuation-enhanced sensing with organically functionalized gold nanoparticle gas sensors targeting biomedical applications

TALANTA

卷:160

Article

Lentka, Lukasz¹  Kotarski, Mateusz¹  Smulko, Janusz¹  Cindemir, Umut²  Topalian, Zareh²  Granqvist, Claes G.²  Calavia, Raul³  Ionescu, Radu³ 

[1] Gdansk Univ Technol, Fac Elect Telecommun & Informat, Narutowicza 11-12, PL-80233 Gdansk, Poland

[2] Uppsala Univ, Dept Engn Sci, Angstrom Lab, SE-75121 Uppsala, Sweden

[3] Rovira & Virgily Univ, Dept Elect, Tarragona 43006, Spain

关键词: Organically-functionalized gold nanoparticles;    Formaldehyde detection;    Fluctuation enhanced sensing;    Flicker noise;   

DOI  :  10.1016/j.talanta.2016.06.063

来源: Elsevier

【 摘 要 】

Detection of volatile organic compounds is a useful approach to non-invasive diagnosis of diseases through breath analysis. Our experimental study presents a newly developed prototype gas sensor, based on organically-functionalized gold nanoparticles, and results on formaldehyde detection using fluctuation-enhanced gas sensing. Formaldehyde was easily detected via intense fluctuations of the gas sensor's resistance, while the cross-influence of ethanol vapor (a confounding factor in exhaled breath, related to alcohol consumption) was negligible. (C) 2016 Elsevier B.V. All rights reserved.

【 授权许可】

Free