Development of a portable impedance analyzer.

• Grant number: 19/00101-8
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2019
• End date: August 31, 2021
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Osvaldo Novais de Oliveira Junior
• Grantee: Lorenzo Antonio Buscaglia
• Host Institution: Instituto de Física de São Carlos (IFSC). Universidade de São Paulo (USP). São Carlos , SP, Brazil

Abstract

Sensing based on electrical impedance measurements is used to detect changes in the physical and chemical properties of samples, permitting the automation of multiple diagnostic and monitoring processes. The use of biosensors and multisensors offers greater sensitivity and selectivity, for which impedance spectra are measured with numerous measurements, usually with an expensive commercial impedance analyzer that is not portable. In this Project, we shall develop a portable impedance analyzer for multiple automated measurements with sensor and biosensor arrays. The development steps will include design, prototyping, fabrication, implementation of dedicated software and testing with sensors and biosensors. The architecture proposed for the system, to be validated and explored throughout the Project, includes a microcomputer, a microcontroller and circuits for wireless communication, wave generation, filtering, analog multiplexing, amplification, AD conversion and display. The operation of the analyzer will be tested in collaboration with researchers from the São Carlos Institute of Physics who employ sensors and multisensors in the diagnosis of diseases and for detecting contamination in water and food.

Scientific publications

(6)

(The scientific publications listed on this page originate from the Web of Science or SciELO databases. Their authors have cited FAPESP grant or fellowship project numbers awarded to Principal Investigators or Fellowship Recipients, whether or not they are among the authors. This information is collected automatically and retrieved directly from those bibliometric databases.)

SOARES, JULIANA COATRINI; SOARES, ANDREY COATRINI; RODRIGUES, VALQUIRIA CRUZ; OITICICA, PEDRO RAMON ALMEIDA; RAYMUNDO-PEREIRA, PAULO AUGUSTO; BOTT-NETO, JOSE LUIZ; BUSCAGLIA, LORENZO A.; DE CASTRO, LUCAS DANIEL CHIBA; RIBAS, LUCAS C.; SCABINI, LEONARDO; et al. Detection of a SARS-CoV-2 sequence with genosensors using data analysis based on information visualization and machine learning techniques. MATERIALS CHEMISTRY FRONTIERS, JUN 2021. (18/22214-6, 18/19750-3, 18/18953-8, 16/01919-6, 19/13514-9, 14/50867-3, 20/02938-0, 19/00101-8, 19/07811-0, 16/23763-8)

BOTT-NETO, JOSE L.; MARTINS, THIAGO S.; BUSCAGLIA, LORENZO A.; MACHADO, SERGIO A. S.; OLIVEIRA, OSVALDO N. JR JR. Photocatalysis of TiO2 Sensitized with Graphitic Carbon Nitride and Electrodeposited Aryl Diazonium on Screen-Printed Electrodes to Detect Prostate Specific Antigen under Visible Light. ACS APPLIED MATERIALS & INTERFACES, v. 14, n. 19, p. 8-pg., 2022-05-18. (19/13514-9, 19/00101-8, 18/22214-6, 19/01777-5)

BUSCAGLIA, LORENZO A.; CARMO, JOAO PAULO; OLIVEIRA, OSVALDO N., JR.. Simple-Z: A Low-Cost Portable Impedance Analyzer. IEEE SENSORS JOURNAL, v. 23, n. 21, p. 8-pg., 2023-11-01. (18/22214-6, 19/00101-8)

BUSCAGLIA, LORENZO A.; OLIVEIRA, OSVALDO N.; CARMO, JOAO PAULO. Roadmap for Electrical Impedance Spectroscopy for Sensing: A Tutorial. IEEE SENSORS JOURNAL, v. 21, n. 20, p. 22246-22257, OCT 15 2021. (19/00101-8, 18/22214-6)

SOARES, JULIANA COATRINI; SOARES, ANDREY COATRINI; RODRIGUES, VALQUIRIA CRUZ; OITICICA, PEDRO RAMON ALMEIDA; RAYMUNDO-PEREIRA, PAULO AUGUSTO; BOTT-NETO, JOSE LUIZ; BUSCAGLIA, LORENZO A.; DE CASTRO, LUCAS DANIEL CHIBA; RIBAS, LUCAS C.; SCABINI, LEONARDO; et al. Detection of a SARS-CoV-2 sequence with genosensors using data analysis based on information visualization and machine learning techniques. MATERIALS CHEMISTRY FRONTIERS, v. 5, n. 15, p. 5658-5670, AUG 7 2021. (19/07811-0, 18/19750-3, 20/02938-0, 16/01919-6, 18/18953-8, 19/13514-9, 14/50867-3, 16/23763-8, 18/22214-6, 19/00101-8)

BOTT-NETO, JOSE L.; MARTINS, THIAGO S.; BUSCAGLIA, LORENZO A.; SANTIAGO, PATRICIA V. B.; FERNANDEZ, PABLO S.; MACHADO, SERGIO A. S.; OLIVEIRA JR, OSVALDO N.. A portable system for photoelectrochemical detection of lactate on TiO2 nanoparticles and [Ni(salen)] polymeric film. SENSORS AND ACTUATORS B-CHEMICAL, v. 345, OCT 15 2021. (18/22214-6, 19/00101-8, 17/11986-5, 19/13514-9, 18/20952-0)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

BUSCAGLIA, Lorenzo Antonio. Development of a Portable Impedance Spectrometer. 2022. Master's Dissertation - Universidade de São Paulo (USP). Instituto de Física de São Carlos (IFSC/BT) São Carlos.