Nano最新文献

{"title":"Influence on the Energy Conservation and Green Environment R152A Refrigeration with Various Nanorefrigerants","authors":"S. Vandaarkuzhali, P. Balu, D. Jayabalakishan, M. Maniyarasan","doi":"10.1142/s1793292023500984","DOIUrl":"https://doi.org/10.1142/s1793292023500984","url":null,"abstract":"Global Warming Potential (GWP) has proven to be just as critical in determining a possible coolant in recent years as Ozone Depletion Potential (ODP). By lowering the refrigerant charge and enhancing the coolant containment systems, R152A emissions are now aggressively reduced. The option to use the R152A device must be discussed due to concerns about its global warming potential. Disperse the specified quantities of nanoparticles in the compressor oil using a magnetic stirrer for two hours, and then ultrasonic dissolve for four hours to prepare the necessary volume fractions. The experiments showed a performance improvement using CuOs with 0.5% volume fractions with a base refrigerant such as R152A. Experimental results from three different nanoparticles, such as CuO, ZnO and Al 2 O 3 , indicate strong miscibility of the nano-CuO lubricant and an increase in lubricity oil to two nanoparticles.","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135088519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Magnetic Hyperthermia Efficiency of PEG-Coated Fe₃O₄ Nanoparticles","authors":"Neha Srivastava, Manoj Baranwal, Bhupendra Chudasama","doi":"10.1142/s1793292023500947","DOIUrl":"https://doi.org/10.1142/s1793292023500947","url":null,"abstract":"Magnetic nanoparticle hyperthermia has drawn considerable interest in cancer therapy. In this study, we report the synthesis of PEG-coated Fe 3 O 4 nanoparticles and evaluate their suitability for magnetic hyperthermia applications. Fe 3 O 4 nanoparticles were synthesized by the chemical coprecipitation method, which are coated with polyethylene glycol (PEG). PEG-coated Fe 3 O 4 nanoparticles were characterized by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), vibrating sample magnetometer (VSM), dynamic light scattering (DLS) and transmission electron microscopy (TEM). Synthesized nanoparticles possess inverse-spinel structural with a crystallite size of 9.1[Formula: see text]nm. From the M-H hysteresis loops, it was confirmed that the synthesized Fe 3 O 4 nanoparticles were superparamagnetic. The physical size of bare Fe 3 O 4 nanoparticles, as determined from the HR-TEM, is [Formula: see text][Formula: see text]nm, and the corresponding hydrodynamic size of PEG-coated Fe 3 O 4 nanoparticles is [Formula: see text][Formula: see text]nm. Magnetic hyperthermia efficiency of PEG-coated Fe 3 O 4 nanoparticles was determined as a function of magnetic field frequency (162–935.6[Formula: see text]kHz), field strength (5–12[Formula: see text]mT) and nanoparticle concentration (1–100[Formula: see text]mg/mL). Temperature rise in an aqueous dispersion of PEG-coated Fe 3 O 4 nanoparticles was measured for 20[Formula: see text]min. The specific loss power (SLP) was calculated by the corrected slope method. SLP values of PEG-coated Fe 3 O 4 nanoparticles increase with magnetic field frequency and field strength and decrease with nanoparticle concentration. The optimum hyperthermia performance of PEG-coated Fe 3 O 4 nanoparticles was observed for 935.6[Formula: see text]kHz frequency, 10[Formula: see text]mT field strength and 25[Formula: see text]mg/mL concentration. Under these conditions, the measured SLP of PEG-coated Fe 3 O 4 nanoparticles was 4.43[Formula: see text]W/g. These results show that the synthesized PEG-coated Fe 3 O 4 nanoparticles could be a potential candidate for magnetic hyperthermia treatment of cancer.","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135293665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on the absorption performance of silicon-based pyramidal microstructure with ultra-low reflectivity","authors":"Zhiwei Fang, Kai Wang, Kai Gao, Daohan Ge, Liqiang Zhang","doi":"10.1142/s1793292023501060","DOIUrl":"https://doi.org/10.1142/s1793292023501060","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Ni-doped TiO₂ Microtubes as Cathode Catalyst for Rechargeable Li-O₂ Batteries","authors":"Huagen Liang, Xiangwei Meng","doi":"10.1142/s1793292023501072","DOIUrl":"https://doi.org/10.1142/s1793292023501072","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135869145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biogenic synthesis and characterization of biocompatible iron oxide nanoparticles: In vitro study of selective antiproliferative efficacy against MCF-7 cells and antibacterial potential","authors":"S. Buvana, Julie Charles, R. Subashini","doi":"10.1142/s1793292023500996","DOIUrl":"https://doi.org/10.1142/s1793292023500996","url":null,"abstract":"The accelerating fatality rate of breast cancer patients has led to the idea of unconventional therapeutic approach in this work. Here, we report the facile, eco-benign and economically advantageous route for producing iron oxide nanoparticles employing triphala extract (TR-IONPs). MTT assay was used to assess the in-vitro anticancer effectiveness of TR-IONPs against the multi-drug-resistant breast malignant cell (MCF-7). TR-IONPs revealed a concentration-dependent effect on MCF-7 viability, with an IC[Formula: see text] value of 6.8[Formula: see text][Formula: see text]g/mL for a 24-h treatment. Thus, the cytotoxic ability was established at a much lower half-maximal inhibitory concentration. As the TR-IONPs did not show remarkable toxicity toward L929 fibroblast cells, they can be trusted as a biocompatible material for real-time biomedical applications. Apoptotic death of MCF-7 cells caused by the release of Reactive Oxygen Species (ROS) was affirmed by DCFH-DA staining, DNA fragmentation assay and cell cycle analysis. Through Kirby–Bauer Disk Diffusion assay, TR-IONPs were found to hold potent antibacterial efficacy against S. aureus, E. coli and P. aeruginosa bacterial pathogens. With the demonstrated favorable results, TR-IONPs may serve as a reliable multi-functional material in the field of nanobiotechnology.","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135874242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Amorphous Fe₂O₃ porous films grown on multilayer graphene for high-performance LIB anodes","authors":"Hailun Fu, Lan Shan, Ke Wei, Tao Zhou, Junming Xu","doi":"10.1142/s1793292023501059","DOIUrl":"https://doi.org/10.1142/s1793292023501059","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135221421","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Supramolecular self-assembly of g-C₃N₄ nano-platform as drug delivery carriers for cancer therapy","authors":"Chen Wang, Lu Gan, Yuxuan Li, Shan Wang, Li Lu, Siyao Zhang, Wenrui Wang, Yan Chen","doi":"10.1142/s1793292023501035","DOIUrl":"https://doi.org/10.1142/s1793292023501035","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136261928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An ultrathin CNFs/CF composite and the performance of electromagnetic interference shielding","authors":"Xiaojing Jia, Huan Du","doi":"10.1142/s1793292023501047","DOIUrl":"https://doi.org/10.1142/s1793292023501047","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136262769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of spherical Na(La,RE)(MoO₄)₂(RE=Eu/Yb,Er), up/down conversion photoluminescence, and optical thermometry","authors":"Changshuai Gong, Bowen Wang, Meng Sun, Jiantong Wang, Xuyan Xue, Xuejiao Wang","doi":"10.1142/s1793292023500960","DOIUrl":"https://doi.org/10.1142/s1793292023500960","url":null,"abstract":"In this work, spherical Na(La,RE)(MoO[Formula: see text] (RE = Eu/Yb-Er) double molybdates were prepared using the rare earth hydroxide (La,RE)(OH)SO 4 as a self-sacrificing template. The composition, structure, morphology, up/down conversion luminescence and fluorescence lifetime (FL) of the samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), fluorescence spectrophotometer, and Fourier transform infrared (FT-IR) spectrophotometer. The results indicate that highly pure spherical Na(La,RE)(MoO[Formula: see text] (RE = Eu/Yb-Er) samples can be obtained from the proposed route. The room temperature and temperature-dependent up/down conversion luminescence properties of the resulting Na(La,RE)(MoO[Formula: see text] (RE = Eu/Yb-Er) phosphors were analyzed in detail. The temperature-sensing performances for the two phosphors in both fluorescence intensity ratio (FIR) and FL modes were evaluated. Classical down and up-conversion photoluminescence (PL) from Eu[Formula: see text] and Er[Formula: see text] were observed. The down conversion phosphors were proved to be capable of sensing temperature via FL mode, and the maximum absolute sensitivity [Formula: see text] and maximum relative sensitivity [Formula: see text] were found to be [Formula: see text][Formula: see text]K[Formula: see text] (298[Formula: see text]K) and [Formula: see text][Formula: see text]K[Formula: see text] (523[Formula: see text]K), respectively. The up conversion phosphors Na(La,Yb,Er)(MoO[Formula: see text] were well capable of sensing temperature via FIR mode through thermally coupled 2 H[Formula: see text], 4 S[Formula: see text] levels (I[Formula: see text]/I[Formula: see text], and the maximum absolute sensitivity [Formula: see text] and maximum relative sensitivity [Formula: see text] were found to be [Formula: see text][Formula: see text]K[Formula: see text] (523[Formula: see text]K) and [Formula: see text][Formula: see text]K[Formula: see text] (348[Formula: see text]K), respectively.","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135463444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Efficient photocatalytic activity of CoNPs@CN under visible light irradiation","authors":"Mingxiu Li, Guanqun Ma, Jianli Jiao, Qiaoyun Zhang, Dan Li, Hongyan Liu","doi":"10.1142/s1793292023300074","DOIUrl":"https://doi.org/10.1142/s1793292023300074","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135567124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}