Pub Date : 2023-11-17DOI: 10.1142/s1793292023501096
Divya Sharma, Rajesh Mehra, Balwinder Raj
{"title":"Enhancement in Efficiency of Methyl Ammonium Tin Iodide based perovskite solar cell using SCAPS-1 D","authors":"Divya Sharma, Rajesh Mehra, Balwinder Raj","doi":"10.1142/s1793292023501096","DOIUrl":"https://doi.org/10.1142/s1793292023501096","url":null,"abstract":"","PeriodicalId":18978,"journal":{"name":"Nano","volume":"182 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2023-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139264317","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}
Ultrasonic (US) and UV-C disinfection technologies have been successfully used in wastewater treatment plants (WWTPs) for disinfection purposes. The US technology is typically used as a pre-treatment step to break down larger particles and make them more susceptible to disinfection. The UV-C technology is commonly used as a final disinfection step in many WWTPs. The study aimed to assess the potential of using Zinc Oxide (ZnO) Nanoparticles (NPs) to improve the effectiveness of UV-C and US disinfection methods in treating wastewater effluent, offering a more comprehensive solution to wastewater treatment. In this experimental study, a Laboratory US Bath (40[Formula: see text]kHz) and a UV-C lamp (16[Formula: see text]W) were used. In order to investigate the effectiveness of ZnO NPs in the reduction of microbial load, 5[Formula: see text]mg/L of ZnO NPs was added to the effluent samples. Then, samples were examined for Total Coliform (TC) and Fecal Coliform (FC) reduction by the standard MPN/100[Formula: see text]mL test. The Chick‘s law was used to calculate the efficiency of microbial load. The relationship between variables was determined by regression analysis using Excel and SPSS-ver 21 software. In this study, the samples were examined in three groups: Samples that were only exposed to sonication or received UV-C radiation with Turbidity of 18 NTU (Group A) and Turbidity of 5 NTU (Group B), and Samples that received 5[Formula: see text]mg/L of ZnO NPs (Group C). By increasing the time from 0.5[Formula: see text]min to 10[Formula: see text]min in the presence of UV-C, the amount of microbial population decreased, and 2[Formula: see text]min was considered the optimal time. The maximum removal efficiencies by US for TC were 74.07,77.7, 85.1% (40[Formula: see text]C) and 92.5,100, and 100% (60[Formula: see text]C) in group A (in 30[Formula: see text]min sonication), 85.7, 85.7, 100% (40[Formula: see text]C), respectively, and were 100% in other groups (B and C), respectively. The maximum removal efficiencies by US for FC were 76.4%, 88.2%, and 100% (40[Formula: see text]C) and 88.2%, 100%, and 100% (60[Formula: see text]C) in group A (in 30[Formula: see text]min sonication), respectively, and were 100% in other groups (B and C). In this study, an important increase in the disinfection ability of ZnO NPs has been observed in the presence of US and UV-C. So, the ZnO NPs/UV-C and ZnO NPs/US processes are valuable alternatives to conventional disinfection processes by over 90% improvement of disinfection efficiency.
{"title":"Enhancing Disinfection Efficiency of Wastewater Treatment Plant Effluent: The Role of ZnO Nanoparticles in Ultrasonic and UV-C Processes","authors":"Fatemeh Mortezazadeh, Fatemeh Nejatzadeh, Masoumeh Eslamifar, Fathollah Gholami-Borujeni","doi":"10.1142/s179329202350100x","DOIUrl":"https://doi.org/10.1142/s179329202350100x","url":null,"abstract":"Ultrasonic (US) and UV-C disinfection technologies have been successfully used in wastewater treatment plants (WWTPs) for disinfection purposes. The US technology is typically used as a pre-treatment step to break down larger particles and make them more susceptible to disinfection. The UV-C technology is commonly used as a final disinfection step in many WWTPs. The study aimed to assess the potential of using Zinc Oxide (ZnO) Nanoparticles (NPs) to improve the effectiveness of UV-C and US disinfection methods in treating wastewater effluent, offering a more comprehensive solution to wastewater treatment. In this experimental study, a Laboratory US Bath (40[Formula: see text]kHz) and a UV-C lamp (16[Formula: see text]W) were used. In order to investigate the effectiveness of ZnO NPs in the reduction of microbial load, 5[Formula: see text]mg/L of ZnO NPs was added to the effluent samples. Then, samples were examined for Total Coliform (TC) and Fecal Coliform (FC) reduction by the standard MPN/100[Formula: see text]mL test. The Chick‘s law was used to calculate the efficiency of microbial load. The relationship between variables was determined by regression analysis using Excel and SPSS-ver 21 software. In this study, the samples were examined in three groups: Samples that were only exposed to sonication or received UV-C radiation with Turbidity of 18 NTU (Group A) and Turbidity of 5 NTU (Group B), and Samples that received 5[Formula: see text]mg/L of ZnO NPs (Group C). By increasing the time from 0.5[Formula: see text]min to 10[Formula: see text]min in the presence of UV-C, the amount of microbial population decreased, and 2[Formula: see text]min was considered the optimal time. The maximum removal efficiencies by US for TC were 74.07,77.7, 85.1% (40[Formula: see text]C) and 92.5,100, and 100% (60[Formula: see text]C) in group A (in 30[Formula: see text]min sonication), 85.7, 85.7, 100% (40[Formula: see text]C), respectively, and were 100% in other groups (B and C), respectively. The maximum removal efficiencies by US for FC were 76.4%, 88.2%, and 100% (40[Formula: see text]C) and 88.2%, 100%, and 100% (60[Formula: see text]C) in group A (in 30[Formula: see text]min sonication), respectively, and were 100% in other groups (B and C). In this study, an important increase in the disinfection ability of ZnO NPs has been observed in the presence of US and UV-C. So, the ZnO NPs/UV-C and ZnO NPs/US processes are valuable alternatives to conventional disinfection processes by over 90% improvement of disinfection efficiency.","PeriodicalId":18978,"journal":{"name":"Nano","volume":"74 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135088196","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}
Pub Date : 2023-11-10DOI: 10.1142/s1793292023500984
S. Vandaarkuzhali, P. Balu, D. Jayabalakishan, M. Maniyarasan
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.
{"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":"76 17","pages":"0"},"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}
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.
{"title":"Evaluation of Magnetic Hyperthermia Efficiency of PEG-Coated Fe<sub>3</sub>O<sub>4</sub> 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":" 25","pages":"0"},"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}
Pub Date : 2023-11-03DOI: 10.1142/s1793292023501060
Zhiwei Fang, Kai Wang, Kai Gao, Daohan Ge, Liqiang Zhang
{"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":"101 6","pages":"0"},"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}
Pub Date : 2023-11-02DOI: 10.1142/s1793292023500996
S. Buvana, Julie Charles, R. Subashini
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.
{"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":"63 7","pages":"0"},"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}
Pub Date : 2023-11-01DOI: 10.1142/s1793292023501059
Hailun Fu, Lan Shan, Ke Wei, Tao Zhou, Junming Xu
{"title":"Amorphous Fe<sub>2</sub>O<sub>3</sub> 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":"35 7-8","pages":"0"},"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}
Pub Date : 2023-10-27DOI: 10.1142/s1793292023501035
Chen Wang, Lu Gan, Yuxuan Li, Shan Wang, Li Lu, Siyao Zhang, Wenrui Wang, Yan Chen
{"title":"Supramolecular self-assembly of g-C<sub>3</sub>N<sub>4</sub> 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":"132 4","pages":"0"},"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}
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