<i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities
<i>Eugenia uniflora linnaeus</i>, known as Brazilian cherry, is widely distributed in Brazil, Argentina, Uruguay, and Paraguay. <i>E. uniflora</i> L. extracts contain phenolic compounds, such as flavonoids, tannins, triterpenes, and sesquiterpenes. The antimicrobial action of...
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| Language: | English |
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MDPI AG
2022-05-01
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| Series: | Microorganisms |
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| Online Access: | https://www.mdpi.com/2076-2607/10/5/999 |
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| author | Marcia Regina Franzolin Daniella dos Santos Courrol Susana de Souza Barreto Lilia Coronato Courrol |
| author_facet | Marcia Regina Franzolin Daniella dos Santos Courrol Susana de Souza Barreto Lilia Coronato Courrol |
| author_sort | Marcia Regina Franzolin |
| collection | DOAJ |
| description | <i>Eugenia uniflora linnaeus</i>, known as Brazilian cherry, is widely distributed in Brazil, Argentina, Uruguay, and Paraguay. <i>E. uniflora</i> L. extracts contain phenolic compounds, such as flavonoids, tannins, triterpenes, and sesquiterpenes. The antimicrobial action of essential oils has been attributed to their compositions of bioactive compounds, such as sesquiterpenes. In this paper, the fruit extract of <i>E. uniflora</i> was used to synthesize silver and gold nanoparticles. The nanoparticles were characterized by UV–Vis, transmission electron microscopy, elemental analysis, FTIR, and Zeta potential measurement. The silver and gold nanoparticles prepared with fruit extracts presented sizes of ~32 nm and 11 nm (diameter), respectively, and Zeta potentials of −22 mV and −14 mV. The antimicrobial tests were performed with Gram-negative and Gram-positive bacteria and <i>Candida albicans</i>. The growth inhibition of <i>Eu</i>AgNPs prepared with and without photoreduction showed the important functional groups in the antimicrobial activity. |
| first_indexed | 2024-03-10T03:22:07Z |
| format | Article |
| id | doaj.art-75312ce5bb2747ddb5a4152ee4c413bc |
| institution | Directory Open Access Journal |
| issn | 2076-2607 |
| language | English |
| last_indexed | 2024-03-10T03:22:07Z |
| publishDate | 2022-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Microorganisms |
| spelling | doaj.art-75312ce5bb2747ddb5a4152ee4c413bc2023-11-23T12:16:17ZengMDPI AGMicroorganisms2076-26072022-05-0110599910.3390/microorganisms10050999<i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial ActivitiesMarcia Regina Franzolin0Daniella dos Santos Courrol1Susana de Souza Barreto2Lilia Coronato Courrol3Laboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, BrazilLaboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, BrazilLaboratório de Bacteriologia, Instituto Butantan, São Paulo 05503-900, BrazilDepartamento de Física, Instituto de Ciências Ambientais, Químicas e Farmacêuticas, Universidade Federal de São Paulo, Diadema 09972-270, Brazil<i>Eugenia uniflora linnaeus</i>, known as Brazilian cherry, is widely distributed in Brazil, Argentina, Uruguay, and Paraguay. <i>E. uniflora</i> L. extracts contain phenolic compounds, such as flavonoids, tannins, triterpenes, and sesquiterpenes. The antimicrobial action of essential oils has been attributed to their compositions of bioactive compounds, such as sesquiterpenes. In this paper, the fruit extract of <i>E. uniflora</i> was used to synthesize silver and gold nanoparticles. The nanoparticles were characterized by UV–Vis, transmission electron microscopy, elemental analysis, FTIR, and Zeta potential measurement. The silver and gold nanoparticles prepared with fruit extracts presented sizes of ~32 nm and 11 nm (diameter), respectively, and Zeta potentials of −22 mV and −14 mV. The antimicrobial tests were performed with Gram-negative and Gram-positive bacteria and <i>Candida albicans</i>. The growth inhibition of <i>Eu</i>AgNPs prepared with and without photoreduction showed the important functional groups in the antimicrobial activity.https://www.mdpi.com/2076-2607/10/5/999<i>Eugenia uniflora</i>pitangasilver nanoparticlesgold nanoparticlesphotoreductionantimicrobial activity |
| spellingShingle | Marcia Regina Franzolin Daniella dos Santos Courrol Susana de Souza Barreto Lilia Coronato Courrol <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities Microorganisms <i>Eugenia uniflora</i> pitanga silver nanoparticles gold nanoparticles photoreduction antimicrobial activity |
| title | <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities |
| title_full | <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities |
| title_fullStr | <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities |
| title_full_unstemmed | <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities |
| title_short | <i>Eugenia uniflora</i> L. Silver and Gold Nanoparticle Synthesis, Characterization, and Evaluation of the Photoreduction Process in Antimicrobial Activities |
| title_sort | i eugenia uniflora i l silver and gold nanoparticle synthesis characterization and evaluation of the photoreduction process in antimicrobial activities |
| topic | <i>Eugenia uniflora</i> pitanga silver nanoparticles gold nanoparticles photoreduction antimicrobial activity |
| url | https://www.mdpi.com/2076-2607/10/5/999 |
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