{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/6411"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/6411","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Imunossensor optoeletrônico para detecção de contaminação de escherichia coli na água","abstract":"This work proposes the study and development of plastic optical fiber (POF) immunosensors for contaminated water identification in less than an hour. Based on the immune response, the POF is functionalized with an antibody to capture bacteria and identify Escherichia coli concentrations in water. The physical principle fundamental for the immunosensor construction is the variation of light modes guided when the fiber is bent. In the bent fiber some modes escape, according to the refractive index of the external medium of the fiber. Thus, the variation of the external refractive index causes the transmitted optical power changes. The accumulation of bacteria in the POF sensing region causes this variation too, identifying E. coli concentrations in the water. An optoelectronic setup using an Arduino platform is developed to provide and interpret the electrical and optical signals involved in this system. Computational modeling was used for optimizing the immunosensor and proposing advances for future researches.","abstract_html":"This work proposes the study and development of plastic optical fiber (POF) immunosensors for contaminated water identification in less than an hour. Based on the immune response, the POF is functionalized with an antibody to capture bacteria and identify Escherichia coli concentrations in water. The physical principle fundamental for the immunosensor construction is the variation of light modes guided when the fiber is bent. In the bent fiber some modes escape, according to the refractive index of the external medium of the fiber. Thus, the variation of the external refractive index causes the transmitted optical power changes. The accumulation of bacteria in the POF sensing region causes this variation too, identifying E. coli concentrations in the water. An optoelectronic setup using an Arduino platform is developed to provide and interpret the electrical and optical signals involved in this system. Computational modeling was used for optimizing the immunosensor and proposing advances for future researches.","abstract_has_math":false,"creators":["Rodrigues, Domingos Marcelus Carias"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Werneck, Marcelo Martins"],"committee_chairs":[],"committee_members":[],"year":2017,"date_issued":"2017-10","date_published":"2017-10","updated_at":"2026-07-24T01:16:21Z","subjects":["Engenharia elétrica","Sensores a fibra óptica","Imunossensor"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/6411","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Werneck, Marcelo Martins"]},{"key":"dc:creator","label":"Author","values":["Rodrigues, Domingos Marcelus Carias"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2019-02-07T17:06:38Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:01:29Z"]},{"key":"dc:date.issued","label":"Date","values":["2017-10"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"]},{"key":"dc:type","label":"Dc Type","values":["Tese"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Engenharia elétrica","Sensores a fibra óptica","Imunossensor"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/6411"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["This work proposes the study and development of plastic optical fiber (POF) immunosensors for contaminated water identification in less than an hour. Based on the immune response, the POF is functionalized with an antibody to capture bacteria and identify Escherichia coli concentrations in water. The physical principle fundamental for the immunosensor construction is the variation of light modes guided when the fiber is bent. In the bent fiber some modes escape, according to the refractive index of the external medium of the fiber. Thus, the variation of the external refractive index causes the transmitted optical power changes. The accumulation of bacteria in the POF sensing region causes this variation too, identifying E. coli concentrations in the water. An optoelectronic setup using an Arduino platform is developed to provide and interpret the electrical and optical signals involved in this system. Computational modeling was used for optimizing the immunosensor and proposing advances for future researches."]},{"key":"dc:title","label":"Title","values":["Imunossensor optoeletrônico para detecção de contaminação de escherichia coli na água"]}]}],"canonical_facts":{"dc:contributor.advisor":["Werneck, Marcelo Martins"],"dc:creator":["Rodrigues, Domingos Marcelus Carias"],"dc:date.accessioned":["2019-02-07T17:06:38Z"],"dc:date.available":["2026-05-16T03:01:29Z"],"dc:date.issued":["2017-10"],"dc:description.abstract":["This work proposes the study and development of plastic optical fiber (POF) immunosensors for contaminated water identification in less than an hour. Based on the immune response, the POF is functionalized with an antibody to capture bacteria and identify Escherichia coli concentrations in water. The physical principle fundamental for the immunosensor construction is the variation of light modes guided when the fiber is bent. In the bent fiber some modes escape, according to the refractive index of the external medium of the fiber. Thus, the variation of the external refractive index causes the transmitted optical power changes. The accumulation of bacteria in the POF sensing region causes this variation too, identifying E. coli concentrations in the water. An optoelectronic setup using an Arduino platform is developed to provide and interpret the electrical and optical signals involved in this system. Computational modeling was used for optimizing the immunosensor and proposing advances for future researches."],"dc:identifier.uri":["http://hdl.handle.net/11422/6411"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia"],"dc:rights":["Acesso Aberto"],"dc:subject":["Engenharia elétrica","Sensores a fibra óptica","Imunossensor"],"dc:title":["Imunossensor optoeletrônico para detecção de contaminação de escherichia coli na água"],"dc:type":["Tese"]},"updated_at":"2026-07-24T01:16:21Z"}