Biossensores para a detecção de agentes infecciosos e análise da qualidade de alimentos

Detalhes bibliográficos
Ano de defesa: 2024
Autor(a) principal: Ribeiro, Sandro Henrique Dias
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Tese
Tipo de acesso: Acesso embargado
Idioma: por
Instituição de defesa: Universidade Federal de Uberlândia
Brasil
Programa de Pós-graduação em Genética e Bioquímica
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: https://repositorio.ufu.br/handle/123456789/41461
http://doi.org/10.14393/ufu.te.2023.676
Resumo: Infectious diseases represent risks to the population and challenges for healthcare services. An example is cytomegalovirus, a pathogen from the Herpesvirus family that is easily transmissible and capable of causing infection and complications, especially in pregnant women and immunosuppressed individuals; another example is Escherichia coli O157:H7, which is associated with foodborne illnesses, mainly due to the production of toxins that can lead to hemorrhagic diarrhea, Hemolytic-Uremic Syndrome (HUS), and even death. Thus, efficient detection of the pathogen is crucial both in assessing food quality and in the diagnosis, monitoring, and/or treatment of infectious diseases. The development of biosensors assists in identifying these pathogens that affect public health due to the advantages presented by such devices, such as low cost, specificity, sensitivity, selectivity, rapidity, possibility of miniaturization, and portability. Considering this, the present doctoral thesis aimed to develop two electrochemical genosensors for the detection of Cytomegalovirus and Escherichia coli O157:H7, by immobilizing a specific DNA probe for each pathogen on graphite electrodes modified with nanomaterials derived from amino acids. This work contributes to the ongoing efforts to build increasingly simple and economical biosensors, crucial for various applications, including medical diagnostics, food safety, and environmental monitoring.