Construction of a high performance shield for in vivo studies with optical pumping magnetometers

• Grant number: 21/06224-4
• Support Opportunities: Regular Research Grants
• Start date: December 01, 2021
• End date: May 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics
• Principal Investigator: Oswaldo Baffa Filho
• Grantee: Oswaldo Baffa Filho
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

This proposal aims to assemble a shield for measurements of low-intensity magnetic field of biological origin through optical pumping magnetometers (OPM). To operate satisfactorily, OPMs need a shield that attenuates the ambient magnetic field to a level between ~10-20 nT. With this shielding, we will be able to study biomagnetic signals of the human body associated with the heart (magnetocardiograms of adults and fetal), the human brain (magnetoencephalography), muscles (magnetomyogram) and the stomach (magnetogastrogram) that will allow several studies and thus advance the frontiers of knowledge in medicine. In this first phase, we propose the instrumental development, characterizations and in vitro studies of the first high-performance magnetic shielding in Latin America. After the tests and certifications, in vivo studies will be proposed and carried out in other specific projects to be developed in collaboration with medical researchers. (AU)

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)

TARDELLI, GABRIELA P. P.; PHAN, TAN; STRASBURGER, JANETTE; BAFFA, OSWALDO; WAKAI, RONALD. Ferrite Shield to Enhance the Performance of Optically Pumped Magnetometers for Fetal Magnetocardiography. JOURNAL OF CLINICAL MEDICINE, v. 12, n. 9, p. 11-pg., 2023-04-24. (13/07699-0, 21/06224-4)