Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre
Nanotechnology applied to health sciences has revolutionized the study of several fields, among which Green Chemistry stands out. Silver nanoparticles, mediated by the use of plant extracts, have been studied with different applications, among which copper nanoparticles with positive allelopathic po...
| Autor principal: | Torres, Alef Ney Nunes da Silva |
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| Grau: | Trabalho de Conclusão de Curso |
| Idioma: | por |
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Brasil
2024
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http://riu.ufam.edu.br/handle/prefix/7356 |
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oai:localhost:prefix-73562025-03-10T21:15:28Z Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre Exploring the potential of Aloe vera in the green synthesis of copper nanoparticles Torres, Alef Ney Nunes da Silva Maia, Paulo José de Sousa http://lattes.cnpq.br/7563056909720108 Carmo, Dominique Fernandes de Moura do Silva, Andreza Miranda Barata da Aloe vera (L.) Burm. F. Síntese verde Nanopartículas metálicas Nanopartículas de cobre Alelopatia CIENCIAS DA SAUDE CIENCIAS EXATAS E DA TERRA Agentes alelopáticos Nanopartículas Nanotechnology applied to health sciences has revolutionized the study of several fields, among which Green Chemistry stands out. Silver nanoparticles, mediated by the use of plant extracts, have been studied with different applications, among which copper nanoparticles with positive allelopathic potential stand out. The present work aimed to carry out the synthesis of copper nanoparticles using the plant extract of Aloe vera (L.) Burm. f., and evaluate its effectiveness in relation to the allelopathic effect on Lactuca sativa lettuce seeds. The copper sulfate II solution was concentrated at 3x10-3 mol/L.-1, two aliquots of 20 ml and 30 ml of extract were removed into 50 ml of copper sulfate II, where for pH 9 the volumes of 20 ml and 30 ml, and for pH 12 volumes of 20 ml and 30 ml were used, and for 21 days, under agitation, spectrum analysis was carried out. A 1% copper nanoparticle solution (T2) was prepared and from this dilutions of 0.1% (T3), 0.01% (T4) and 0.001% (T5) were developed and water was used as controls. (T0), water plus Neem oil (T1) in the proportion (1:1) being emulsified with water. The experiment was carried out in ten days and the variables were evaluated: Percentage of germination (P.G.%) and Average germination time (TMG), where they were subjected to statistical analysis using the SISVAR software. Treatments at concentrations of 1% (T2) and 0.1% (T3) acted directly by reducing the germination percentage (P.G.%) and average germination time (AMR) of Lactuca sativa lettuce seeds. The copper nanoparticles showed allelopathic activity against lettuce seeds, however additional tests must be carried out in order to elucidate the possible mechanisms of action of the nanoparticles and the possibility of conveying them in other formulations. A nanotecnologia aplicada às ciências da saúde revolucionou o estudo de diversos campos de atuação, dentre estes, destaca-se a Química Verde. As nanopartículas de prata, mediadas pela utilização de extratos vegetais, vêm sendo estudadas com diferentes aplicações, dentre estas destaca-se as nanopartículas de cobre com potencial alelopático positivo. O presente trabalho objetivou realizar a síntese de nanopartículas de cobre utilizando o extrato vegetal da Aloe vera (L.) Burm. f., e avaliar sua eficácia em relação ao efeito alelopático sobre sementes de alface Lactuca sativa. A solução de sulfato de cobre II concentrada em 3x10-3 mol/L-1, retirou-se duas alíquotas de 20 ml e 30 ml de extrato para 50 ml de sulfato de cobre II, onde para o pH 9 foram utilizados os volumes de 20 ml e 30 ml, e para o pH 12 foram utilizados os volumes de 20 ml e 30 ml, e durante 21 dias, sob agitação foi realizada a análise em espectro. Uma solução de nanopartícula de cobre à 1% (T2) foi preparada e a partir desta foram desenvolvidas as diluições de 0,1% (T3), 0,01% (T4) e 0,001% (T5) e como controles foram usados água (T0), água mais óleo de Neem (T1) na proporção (1:1) sendo emulsionado com água. O experimento foi realizado em dez dias e foram avaliadas as variáveis: Percentual de germinação (P.G.%) e Tempo médio de germinação (TMG), onde foram submetidos à análise estatística através do software SISVAR. Os tratamentos nas concentrações 1% (T2) e 0,1% (T3) atuaram diretamente diminuindo o percentual de germinação (P.G.%) e tempo médio de germinação (TMG) das sementes de alface Lactuca sativa. As nanopartículas de cobre apresentaram atividade alelopática frente as sementes de alface, porém devem ser realizados ensaios complementares com o intuito de elucidar os possíveis mecanismos de ação das nanopartículas e a possibilidade de veicular estas em outras formulações. 2 Sim Fiquei em dificuldade na parte em que se pede para selecionar a coleção em que o TCC seria enviado, pois me deixou confuso. Não sei se eu escolho a área do meu curso ou a área em que o trabalho foi escrito. 2024-01-31T12:54:11Z 2024-01-31T12:54:11Z 2023-11-07 Trabalho de Conclusão de Curso http://riu.ufam.edu.br/handle/prefix/7356 por Acesso Aberto https://creativecommons.org/licenses/by-nc-nd/4.0/ Brasil ICET - Instituto de Ciências Exatas e Tecnologia (Itacoatiara) Manaus (AM) Farmácia - Bacharelado - Itacoatiara |
| institution |
Repositório Institucional - Universidade Federal do Amazonas |
| collection |
RI-UFAM |
| language |
por |
| topic |
Aloe vera (L.) Burm. F. Síntese verde Nanopartículas metálicas Nanopartículas de cobre Alelopatia CIENCIAS DA SAUDE CIENCIAS EXATAS E DA TERRA Agentes alelopáticos Nanopartículas |
| spellingShingle |
Aloe vera (L.) Burm. F. Síntese verde Nanopartículas metálicas Nanopartículas de cobre Alelopatia CIENCIAS DA SAUDE CIENCIAS EXATAS E DA TERRA Agentes alelopáticos Nanopartículas Torres, Alef Ney Nunes da Silva Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| topic_facet |
Aloe vera (L.) Burm. F. Síntese verde Nanopartículas metálicas Nanopartículas de cobre Alelopatia CIENCIAS DA SAUDE CIENCIAS EXATAS E DA TERRA Agentes alelopáticos Nanopartículas |
| description |
Nanotechnology applied to health sciences has revolutionized the study of several fields, among which Green Chemistry stands out. Silver nanoparticles, mediated by the use of plant extracts, have been studied with different applications, among which copper nanoparticles with positive allelopathic potential stand out. The present work aimed to carry out the synthesis of copper nanoparticles using the plant extract of Aloe vera (L.) Burm. f., and evaluate its effectiveness in relation to the allelopathic effect on Lactuca sativa lettuce seeds. The copper sulfate II solution was concentrated at 3x10-3 mol/L.-1, two aliquots of 20 ml and 30 ml of extract were removed into 50 ml of copper sulfate II, where for pH 9 the volumes of 20 ml and 30 ml, and for pH 12 volumes of 20 ml and 30 ml were used, and for 21 days, under agitation, spectrum analysis was carried out. A 1% copper nanoparticle solution (T2) was prepared and from this dilutions of 0.1% (T3), 0.01% (T4) and 0.001% (T5) were developed and water was used as controls. (T0), water plus Neem oil (T1) in the proportion (1:1) being emulsified with water. The experiment was carried out in ten days and the variables were evaluated: Percentage of germination (P.G.%) and Average germination time (TMG), where they were subjected to statistical analysis using the SISVAR software. Treatments at concentrations of 1% (T2) and 0.1% (T3) acted directly by reducing the germination percentage (P.G.%) and average germination time (AMR) of Lactuca sativa lettuce seeds. The copper nanoparticles showed allelopathic activity against lettuce seeds, however additional tests must be carried out in order to elucidate the possible mechanisms of action of the nanoparticles and the possibility of conveying them in other formulations. |
| author_additional |
Maia, Paulo José de Sousa |
| author_additionalStr |
Maia, Paulo José de Sousa |
| format |
Trabalho de Conclusão de Curso |
| author |
Torres, Alef Ney Nunes da Silva |
| title |
Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| title_short |
Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| title_full |
Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| title_fullStr |
Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| title_full_unstemmed |
Explorando a potencialidade da Aloe vera na síntese verde de nanopartículas de cobre |
| title_sort |
explorando a potencialidade da aloe vera na síntese verde de nanopartículas de cobre |
| publisher |
Brasil |
| publishDate |
2024 |
| url |
http://riu.ufam.edu.br/handle/prefix/7356 |
| _version_ |
1831970025541468160 |
| score |
11.755432 |