Genet Tsegaye, Zebene Kiflie, Tizazu H. Mekonnen, Mulisa Jida
{"title":"具有抗菌活性的咖啡壳提取物(CHE)封端 Fe3O4/PU/ZnO 纳米复合材料的合成与表征","authors":"Genet Tsegaye, Zebene Kiflie, Tizazu H. Mekonnen, Mulisa Jida","doi":"10.1007/s13399-024-05918-2","DOIUrl":null,"url":null,"abstract":"<p>Waterborne diseases pose a significant threat to global health, particularly in developing nations mainly attributed to disease-carrying microbes. This study aims to synthesize plant-mediated nanocomposite material with antimicrobial activity that can have applications for domestic water treatment. The study employed phytochemicals extracted from coffee husk (CH) as a capping agent to synthesize a novel coffee husk extract-capped magnetic pumice zinc oxide nanocomposite (CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC) for antibacterial material applications. The study was carried out to examine the effects of coffee husk extract (CHE) on biosynthesized nanocomposite characteristics and to compare the antibacterial activity of CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NCs versus bare CHE-capped ZnO nanoparticles (ZnO-NPs). The biosynthesized CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC have high zeta potential (− 23.8 mV) proving that the synthesized nanocomposite material was more stable than bare ZnO-NPs (− 21 mv) as a colloidal dispersion. SEM was used to examine the shape and size of CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC particles and for comparison with bare ZnO-NPs. It was noted that the Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC has smaller particle size (11.2 nm) than ZnO-NPs (22.2 nm). The CHE Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC also demonstrated a better bacterial growth inhibition zone against <i>Staphylococcus aureus</i> (<i>S. aureus</i>) and <i>Escherichia coli</i> (<i>E. coli</i>) than pure CHE-capped ZnO-NPs. The CHE Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC exhibited more potent antimicrobial activity against <i>S. aureus</i> than against <i>E. coli.</i> This confirmed that the developed biosynthesized CHE-capped nanocomposite could be a promising candidate for pathogen disinfection.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\n","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":null,"pages":null},"PeriodicalIF":3.5000,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and characterization of coffee husk extract (CHE)-capped Fe3O4/PU/ZnO nanocomposites with antimicrobial activity\",\"authors\":\"Genet Tsegaye, Zebene Kiflie, Tizazu H. 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The biosynthesized CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC have high zeta potential (− 23.8 mV) proving that the synthesized nanocomposite material was more stable than bare ZnO-NPs (− 21 mv) as a colloidal dispersion. SEM was used to examine the shape and size of CHE-capped Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC particles and for comparison with bare ZnO-NPs. It was noted that the Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC has smaller particle size (11.2 nm) than ZnO-NPs (22.2 nm). The CHE Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC also demonstrated a better bacterial growth inhibition zone against <i>Staphylococcus aureus</i> (<i>S. aureus</i>) and <i>Escherichia coli</i> (<i>E. coli</i>) than pure CHE-capped ZnO-NPs. The CHE Fe<sub>3</sub>O<sub>4</sub>/PU/ZnO-NC exhibited more potent antimicrobial activity against <i>S. aureus</i> than against <i>E. coli.</i> This confirmed that the developed biosynthesized CHE-capped nanocomposite could be a promising candidate for pathogen disinfection.</p><h3 data-test=\\\"abstract-sub-heading\\\">Graphical Abstract</h3>\\n\",\"PeriodicalId\":488,\"journal\":{\"name\":\"Biomass Conversion and Biorefinery\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.5000,\"publicationDate\":\"2024-07-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biomass Conversion and Biorefinery\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1007/s13399-024-05918-2\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biomass Conversion and Biorefinery","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1007/s13399-024-05918-2","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
Synthesis and characterization of coffee husk extract (CHE)-capped Fe3O4/PU/ZnO nanocomposites with antimicrobial activity
Waterborne diseases pose a significant threat to global health, particularly in developing nations mainly attributed to disease-carrying microbes. This study aims to synthesize plant-mediated nanocomposite material with antimicrobial activity that can have applications for domestic water treatment. The study employed phytochemicals extracted from coffee husk (CH) as a capping agent to synthesize a novel coffee husk extract-capped magnetic pumice zinc oxide nanocomposite (CHE-capped Fe3O4/PU/ZnO-NC) for antibacterial material applications. The study was carried out to examine the effects of coffee husk extract (CHE) on biosynthesized nanocomposite characteristics and to compare the antibacterial activity of CHE-capped Fe3O4/PU/ZnO-NCs versus bare CHE-capped ZnO nanoparticles (ZnO-NPs). The biosynthesized CHE-capped Fe3O4/PU/ZnO-NC have high zeta potential (− 23.8 mV) proving that the synthesized nanocomposite material was more stable than bare ZnO-NPs (− 21 mv) as a colloidal dispersion. SEM was used to examine the shape and size of CHE-capped Fe3O4/PU/ZnO-NC particles and for comparison with bare ZnO-NPs. It was noted that the Fe3O4/PU/ZnO-NC has smaller particle size (11.2 nm) than ZnO-NPs (22.2 nm). The CHE Fe3O4/PU/ZnO-NC also demonstrated a better bacterial growth inhibition zone against Staphylococcus aureus (S. aureus) and Escherichia coli (E. coli) than pure CHE-capped ZnO-NPs. The CHE Fe3O4/PU/ZnO-NC exhibited more potent antimicrobial activity against S. aureus than against E. coli. This confirmed that the developed biosynthesized CHE-capped nanocomposite could be a promising candidate for pathogen disinfection.
期刊介绍:
Biomass Conversion and Biorefinery presents articles and information on research, development and applications in thermo-chemical conversion; physico-chemical conversion and bio-chemical conversion, including all necessary steps for the provision and preparation of the biomass as well as all possible downstream processing steps for the environmentally sound and economically viable provision of energy and chemical products.