{"title":"纳米材料增强了微波处理的抗菌效果：了解纳米材料特性的作用","authors":"Lele Shao, Satwik Majumder, Ziruo Liu, Ruitong Dai, Thilak Raj, Swathi Sudhakar, Saji George","doi":"10.1007/s11051-024-06093-1","DOIUrl":null,"url":null,"abstract":"<div><p>Unique outcomes ensuing nanomaterial (NM) interactions with discrete wavelengths of electromagnetic radiation have been utilized in various biological applications. We investigated the antibacterial effect and dissolution of five NMs (gold nanospheres (AuNSs), two gold nanorods (AuNRs636 and AuNRs772), silver nanoparticles (AgNPs), and titanium dioxide nanoparticles (TiO<sub>2</sub> NPs)) in saline and milk during microwave (MW) treatment. AuNSs, AgNPs, AuNRs636, and AuNRs772 improved the antibacterial effect of MW not only by increasing the temperature of the suspending media but also due to oxidative stress. Notably, the damage to bacterial membrane, measured as a reduction in the membrane potential, and reactive oxygen species generation in Gram-negative (<i>Escherichia coli</i>) and Gram-positive (<i>Staphylococcus aureus</i>) bacteria was higher during MW treatment in the presence of AuNRs in comparison to AuNSs. AuNRs636 (4 µg/mL) combined with MW (40 s) achieved ~ 5 Log<sub>10</sub>(CFU/mL) reduction of <i>E. coli</i> and <i>S. aureus</i> in milk. MW enhanced the dissolution of AuNRs636 in milk, while AgNPs and TiO<sub>2</sub> NPs showed aggregation after MW. Apart from elucidating the increased temperature and oxidative stress on bacterial elimination, this work highlighted the differential effects of MW on NMs of different chemical composition and shape.</p></div>","PeriodicalId":653,"journal":{"name":"Journal of Nanoparticle Research","volume":"26 8","pages":""},"PeriodicalIF":2.1000,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nanomaterials enhanced the antimicrobial effect of microwave treatment: understanding the role of nanomaterial properties\",\"authors\":\"Lele Shao, Satwik Majumder, Ziruo Liu, Ruitong Dai, Thilak Raj, Swathi Sudhakar, Saji George\",\"doi\":\"10.1007/s11051-024-06093-1\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Unique outcomes ensuing nanomaterial (NM) interactions with discrete wavelengths of electromagnetic radiation have been utilized in various biological applications. We investigated the antibacterial effect and dissolution of five NMs (gold nanospheres (AuNSs), two gold nanorods (AuNRs636 and AuNRs772), silver nanoparticles (AgNPs), and titanium dioxide nanoparticles (TiO<sub>2</sub> NPs)) in saline and milk during microwave (MW) treatment. AuNSs, AgNPs, AuNRs636, and AuNRs772 improved the antibacterial effect of MW not only by increasing the temperature of the suspending media but also due to oxidative stress. Notably, the damage to bacterial membrane, measured as a reduction in the membrane potential, and reactive oxygen species generation in Gram-negative (<i>Escherichia coli</i>) and Gram-positive (<i>Staphylococcus aureus</i>) bacteria was higher during MW treatment in the presence of AuNRs in comparison to AuNSs. AuNRs636 (4 µg/mL) combined with MW (40 s) achieved ~ 5 Log<sub>10</sub>(CFU/mL) reduction of <i>E. coli</i> and <i>S. aureus</i> in milk. MW enhanced the dissolution of AuNRs636 in milk, while AgNPs and TiO<sub>2</sub> NPs showed aggregation after MW. Apart from elucidating the increased temperature and oxidative stress on bacterial elimination, this work highlighted the differential effects of MW on NMs of different chemical composition and shape.</p></div>\",\"PeriodicalId\":653,\"journal\":{\"name\":\"Journal of Nanoparticle Research\",\"volume\":\"26 8\",\"pages\":\"\"},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-08-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Nanoparticle Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11051-024-06093-1\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Nanoparticle Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s11051-024-06093-1","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Nanomaterials enhanced the antimicrobial effect of microwave treatment: understanding the role of nanomaterial properties
Unique outcomes ensuing nanomaterial (NM) interactions with discrete wavelengths of electromagnetic radiation have been utilized in various biological applications. We investigated the antibacterial effect and dissolution of five NMs (gold nanospheres (AuNSs), two gold nanorods (AuNRs636 and AuNRs772), silver nanoparticles (AgNPs), and titanium dioxide nanoparticles (TiO2 NPs)) in saline and milk during microwave (MW) treatment. AuNSs, AgNPs, AuNRs636, and AuNRs772 improved the antibacterial effect of MW not only by increasing the temperature of the suspending media but also due to oxidative stress. Notably, the damage to bacterial membrane, measured as a reduction in the membrane potential, and reactive oxygen species generation in Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria was higher during MW treatment in the presence of AuNRs in comparison to AuNSs. AuNRs636 (4 µg/mL) combined with MW (40 s) achieved ~ 5 Log10(CFU/mL) reduction of E. coli and S. aureus in milk. MW enhanced the dissolution of AuNRs636 in milk, while AgNPs and TiO2 NPs showed aggregation after MW. Apart from elucidating the increased temperature and oxidative stress on bacterial elimination, this work highlighted the differential effects of MW on NMs of different chemical composition and shape.
期刊介绍：
The objective of the Journal of Nanoparticle Research is to disseminate knowledge of the physical, chemical and biological phenomena and processes in structures that have at least one lengthscale ranging from molecular to approximately 100 nm (or submicron in some situations), and exhibit improved and novel properties that are a direct result of their small size.
Nanoparticle research is a key component of nanoscience, nanoengineering and nanotechnology.
The focus of the Journal is on the specific concepts, properties, phenomena, and processes related to particles, tubes, layers, macromolecules, clusters and other finite structures of the nanoscale size range. Synthesis, assembly, transport, reactivity, and stability of such structures are considered. Development of in-situ and ex-situ instrumentation for characterization of nanoparticles and their interfaces should be based on new principles for probing properties and phenomena not well understood at the nanometer scale. Modeling and simulation may include atom-based quantum mechanics; molecular dynamics; single-particle, multi-body and continuum based models; fractals; other methods suitable for modeling particle synthesis, assembling and interaction processes. Realization and application of systems, structures and devices with novel functions obtained via precursor nanoparticles is emphasized. Approaches may include gas-, liquid-, solid-, and vacuum-based processes, size reduction, chemical- and bio-self assembly. Contributions include utilization of nanoparticle systems for enhancing a phenomenon or process and particle assembling into hierarchical structures, as well as formulation and the administration of drugs. Synergistic approaches originating from different disciplines and technologies, and interaction between the research providers and users in this field, are encouraged.
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