Miniaturized platform for gaseous sensing using LED's and microfluidic paper analytical devices

• Grant number: 16/16830-0
• Support type: Scholarships abroad - Research Internship - Post-doctor
• Effective date (Start): February 13, 2017
• Effective date (End): September 01, 2017
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
• Principal researcher: Arnaldo Alves Cardoso
• Grantee: João Flávio da Silveira Petruci
• Supervisor abroad: Peter Hauser
• Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Research place: University of Basel, Switzerland
• Associated to the scholarship: 13/22995-4 - Luminescent sensor for in situ determination of reduced sulfur compounds in gaseous matrices using palladium compounds, BP.PD

Abstract

The aim of this project is the development of a portable and miniaturized platform to be applied in the in situ determination of a single or multi compounds in gaseous matrices. Gaseous samples will be collected using specific reagents and/or sorbents impregnated on solids into a reduced dimensions preconcentrator (i.e pipette-tip), eluted and then detected directly in a microfluidic paper analytical device (µPAD) or after previous separation in an electrophoretic lab-on-a-chip device. Optical detection (i.e absorbance or fluorescence) will be employed in the platform assembling by using dedicated LED's (UV-VIS range), fiber optics, photodiodes and electronics connected to a portable platform (i.e laptops, smartphones or tablets). The platform will be validated against the determination of H2S, NH3, NO2 and SO2.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

DA SILVEIRA PETRUCI, JOAO FLAVIO; HAUSER, PETER C.; CARDOSO, ARNALDO ALVES. Colorimetric paper-based device for gaseous hydrogen cyanide quantification based on absorbance measurements. SENSORS AND ACTUATORS B-CHEMICAL, v. 268, p. 392-397, SEP 1 2018. Web of Science Citations: 9.

PETRUCI, JOAO FLAVIO DA SILVEIRA; LIEBETANZ, MICHAEL G.; CARDOSO, ARNALDO ALVES; HAUSER, PETER C. Absorbance detector for high performance liquid chromatography based on a deep-UV light-emitting diode at 235 nm. Journal of Chromatography A, v. 1512, p. 143-146, AUG 25 2017. Web of Science Citations: 2.