This paper demonstrates, for the first time, the use of paper‐based electrochemical devices coupled to external solid working electrodes. The paper‐based electrochemical cells were fabricated using inexpensive and largely available office paper, according to a simple protocol that consists on the creation of hydrophobic barriers using paraffinized paper and preheated metal stamp. The counter and reference electrodes were integrated to the paper platform through the deposition of carbon and silver inks, respectively. The electrochemical paper analytical device (ePAD) was coupled to external glassy carbon rod electrode modified with reduced graphene oxide doped with Cu nanoparticles through meniscus configuration. The analytical usefulness of this electrochemical approach was demonstrated through the simultaneous determination of paracetamol and caffeine in biological samples. The analytes were successfully quantified in real urine samples and limits of detection of 24.6 nM (paracetamol) and 36.1 nM (caffeine) were obtained. The paper platform showed good stability (RSD of 1.07 % for the peak currents and 1.43 % for the peak potentials) and satisfactory performance. The use of solid electrodes coupled to paper electrochemical devices, firstly demonstrated here, opens new possibilities for the utilization of ePADs in electrochemistry and electroanalytical chemistry and offers advantages such as the extremely reduced consumption of reagents and the minimal generation of wastes.
Objetivo: relatar a experiência vivenciada por profissionais residentes do Programa de Residência Multiprofissional em Saúde do Adolescente da UFSJ e Secretaria Municipal de Saúde, no cotidiano da Central de Atendimentos Alô Corona. Relato de experiência: Implantado em março de 2020, o Alô Corona tem como finalidade proporcionar informações à população, por teleatendimento, sobre diversos assuntos relacionados à COVID-19, evitando assim o deslocamento dos usuários às unidades de saúde da Atenção Primária à Saúde (APS) em um município no interior de Minas Gerais. A prática educativa desenvolvida, por profissionais residentes, via ligação telefônica, dá ao usuário a possibilidade de ter suas dúvidas resolvidas em um espaço confiável e seguro de acesso à informação, considerando que desde janeiro do corrente ano a sociedade está imersa em um contexto de excesso de informações, muitas vezes desencontradas. Considerações finais: O Alô Corona vem se mostrando importante dispositivo de promoção da saúde e prevenção dos agravos relacionados à COVID-19.
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