Nano-Structures & Nano-Objects最新文献_第10页

Fabric-based intelligent fire-warning and flame-retardant coating: A review of advances, challenges and prospects 基于织物的智能火灾预警和阻燃涂层：进展、挑战和前景综述

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-09 DOI: 10.1016/j.nanoso.2024.101328

Guangyi Zhang, Shusheng Wu, Xichen Xu, Zaihong Wei, Bihe Yuan

{"title":"Fabric-based intelligent fire-warning and flame-retardant coating: A review of advances, challenges and prospects","authors":"Guangyi Zhang, Shusheng Wu, Xichen Xu, Zaihong Wei, Bihe Yuan","doi":"10.1016/j.nanoso.2024.101328","DOIUrl":"10.1016/j.nanoso.2024.101328","url":null,"abstract":"<div><p>Fabric-based fire-warning and flame-retardant coatings could achieve dual functions of active warning response and passive fire retardancy. In contrast to conventional fire detection systems that necessitate installation at designated locations, the contact surface between the coating sensing material and the flame is substantially augmented. Therefore, it possesses crucial application value in enhancing the warning efficiency and fire safety performance of flammable substrates. This review primarily delved into the flame retardancy and fire warning of fabric coating materials. It thoroughly examined the current research status of fabric-based flame-retardant coatings and analyzed the fire-warning mechanisms of voltage-based and resistance-based coatings. Furthermore, this comprehensive review elucidated the research and current applications of various coatings based on sensing materials such as graphene oxide, carbon nanotubes, and MXene in the fire warning and flame resistance. Additionally, it is worth noting that the current functionality of fabric-based coatings is relatively limited, necessitating the incorporation of multi-functionality to adapt to various usage scenarios. In addition, it is necessary to develop large-scale coating preparation technique to achieve commercial production and combine artificial intelligence technology to achieve higher-level fire warning and flame-resistant application. Finally, the future development trend of the fabric-based coating was prospected.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"40 ","pages":"Article 101328"},"PeriodicalIF":5.45,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142162897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An overview of bio-assisted nanoparticles: Synthesis, application and challenges in nature's toolbox 生物辅助纳米粒子概述：大自然工具箱中的合成、应用与挑战

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-07 DOI: 10.1016/j.nanoso.2024.101317

Kazi Sabnam Banu, Prateeti Chakraborty

{"title":"An overview of bio-assisted nanoparticles: Synthesis, application and challenges in nature's toolbox","authors":"Kazi Sabnam Banu, Prateeti Chakraborty","doi":"10.1016/j.nanoso.2024.101317","DOIUrl":"https://doi.org/10.1016/j.nanoso.2024.101317","url":null,"abstract":"Nanomaterials (NMs) are distinct chemical substances that possess an extraordinarily large surface area and exterior dimensions within the nano scale range, specifically between 1 and 100 nanometers. Nano materials are categorized as inorganic NMs, organic NMs, carbon containing NMs, and composite NMs. The comprehensive examination of NMs encompasses a wide range of investigation in the field of nano technology, nano engineering, and nano science. The current imperative is for researchers to synthesize NMs due to it’s huge application in versatile areas. Different materials such as metal oxides, polymeric compounds, semiconductors, ceramics, metals etc.are utilized to synthesize nanostructures by different processes. NMs of different morphology have been synthesized based on the specific synthetic procedure and origin of the materials. Out of the several procedures, biosynthesis, also known as green synthesis or bio-assisted method, is the most environmentally benign, low-toxic and cost-effective procedure. The main aim of this job is to give a brief overview of the different naturally existing NMs, their sources amd different bio-assisted methods with the mechanisms. Three types of biogenic synthesis with the involvement of microorganisms, biomolecules as templates and plant extracts are discussed thoroughly. This review not only examines the synthesis of biogenic nanoparticles but also investigates various applications of these NMs and explores different categorizations of NMs that have been produced by environmentally sustainable techniques. The present article paper examines the underexplored field of NMs and its potential for advancements in near future.","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"77 1","pages":""},"PeriodicalIF":5.45,"publicationDate":"2024-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural and magnetic properties of aluminium substituted Ni-Cu spinel ferrite 铝取代镍铜尖晶石铁氧体的结构和磁性能

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-06 DOI: 10.1016/j.nanoso.2024.101325

P.B. Wasnik, K.G. Rewatkar, S.M. Suryawanshi, M.S. Bisen, S.D. Rokade

引用次数: 0

Anti-proliferative activities of Carthamidin mediated gold nanoparticles against breast cancer: An in-vitro approach 胭脂虫酰胺介导的金纳米粒子对乳腺癌的抗增殖活性：体外方法

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-06 DOI: 10.1016/j.nanoso.2024.101324

John Joseph, Rajkuberan Chandrasekaran, Selvakumari Palani

{"title":"Anti-proliferative activities of Carthamidin mediated gold nanoparticles against breast cancer: An in-vitro approach","authors":"John Joseph, Rajkuberan Chandrasekaran, Selvakumari Palani","doi":"10.1016/j.nanoso.2024.101324","DOIUrl":"https://doi.org/10.1016/j.nanoso.2024.101324","url":null,"abstract":"Natural pigments have unique commercial properties and are a versatile resource. Additionally, these pigments have potent therapeutic qualities that could be developed into a medication. With this rationale, a simple one-pot synthesis of gold nanoparticles (AuNPs) was achieved using Carthamidin (CT). The synthesis of gold nanoparticles was visually confirmed by the change of color pattern from yellow to dark purple color. The CTAuNPs exhibit Surface Plasmon Resonance at 537 nm in Ultra-Violet Visible Spectroscopy analysis (UV-Vis). The face-centered cubic crystalline nature of CTAuNPs was determined by the X-ray diffraction spectrum. The spherical, polydispersed, stable nanoparticles with an average size of 35 nm are depicted by scanning and transmission electron microscopy and CTAuNPs were stable as determined by zeta potential. The CTAuNPs were evaluated as a cytotoxic agent in the MCF 7 cells using the (3-[4,5-dimethylthiazol-2-yl]-2,5 diphenyltetrazolium bromide) (MTT) method. The assay inhibits the cell proliferation in a dose-dependent manner with an IC 76.32 µg/mL. Additionally, we used the Reactive Oxygen Species assay, Lactate Dehydrogenase assay, and Acridine Orange/Ethidium Bromide Staining to annotate the apoptosis pattern. These comprehensive assays validate that the MCF 7 cancer cells treated with CTAuNPs underwent apoptosis-mediated cell death. Furthermore, flow cytometry analysis showed that the CTAuNPs stop the cell cycle at the GO/G1 phase in the MCF 7 cells. It is clear from the analyses that CTAuNPs induce apoptosis in MCF 7 cells. As a result, the development of novel pigment-based gold nanoparticles will enhance the nanoparticles as a theranostic agent as a new paradigm to combat breast cancer and resistance.","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"109 1","pages":""},"PeriodicalIF":5.45,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Crystallization behavior of electro-spun Ag-SnO2 nanofibers through voltage-dependent alteration in Sn-interstitials 电纺 Ag-SnO2 纳米纤维的结晶行为取决于锡间质的电压变化

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-06 DOI: 10.1016/j.nanoso.2024.101316

Hafiz Aamir Sohail, Ameena Nazneen

引用次数: 0

Nanocarriers for nutraceutical delivery: A miniaturized revolution in health 用于营养保健品输送的纳米载体：健康领域的微型化革命

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-06 DOI: 10.1016/j.nanoso.2024.101321

Rajashri B. Sawant, Sonali P. Nikam, Arpita Roy, Ashish Kumar, Osama A. Mohammed, Kuldeep Sharma, Ashutosh Kumar Rai, Amit Roy, Ashish Gaur, Rajan Verma

{"title":"Nanocarriers for nutraceutical delivery: A miniaturized revolution in health","authors":"Rajashri B. Sawant, Sonali P. Nikam, Arpita Roy, Ashish Kumar, Osama A. Mohammed, Kuldeep Sharma, Ashutosh Kumar Rai, Amit Roy, Ashish Gaur, Rajan Verma","doi":"10.1016/j.nanoso.2024.101321","DOIUrl":"https://doi.org/10.1016/j.nanoso.2024.101321","url":null,"abstract":"With the development of nanocarriers, especially in the area of nutraceutical delivery, the rapidly expanding field of nanotechnology has brought in a new age of health and well-being. The revolutionary potential of nanocarriers to improve the stability, bioavailability, and effectiveness of nutraceutical substances is discussed in this review paper. It started with outlining the difficulties that conventional nutraceutical delivery systems have, such as their low solubility and restricted absorption, which frequently obstruct their therapeutic advantages. The various types of nanocarriers which act as nutraceuticals includes liposomes, lipids, and polymer-based materials also highlight of their special qualities and how they get around the problems outlined. Recent developments in nanocarrier technology are critically analyzed to show how these tiny particles may be designed to offer enhanced protection against bioactive compounds and targeted, controlled release. Here toxicity issues and international guidelines compliance while examining safety and regulatory factors relevant to the use of nanocarriers in nutraceuticals has also been discussed. This review concludes with a prospective outlook on the use of nanocarriers in nutraceuticals going ahead, highlighting the possibility of tailored nutrition and the significance of new developments in maintaining and averting illness. This review provides the present status and future prospects of nanocarrier technology in the improvement of nutraceutical delivery by merging recent research findings and expert perspectives.","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"87 1","pages":""},"PeriodicalIF":5.45,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195389","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of air annealing on structural, textural, thermal, magnetic and photocatalytic properties of Ag-doped mesoporous amorphous crystalline nanopowders Bi2O3 空气退火对掺银介孔无定形结晶纳米粉体 Bi2O3 的结构、纹理、热、磁和光催化性能的影响

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-05 DOI: 10.1016/j.nanoso.2024.101319

V.G. Ilves, V.S. Gaviko, A.M. Murzakaev, S.Y. Sokovnin, O.A. Svetlova, M.G. Zuev, M.A. Uimin

引用次数: 0

Green synthesis and characterization studies of TiO2 nanoparticles and its potential biological performance TiO2 纳米粒子的绿色合成和表征研究及其潜在的生物性能

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-04 DOI: 10.1016/j.nanoso.2024.101322

R. Ramya, G. Muthulakshmi, S. Sudhahar, A. Bhaskaran

{"title":"Green synthesis and characterization studies of TiO2 nanoparticles and its potential biological performance","authors":"R. Ramya, G. Muthulakshmi, S. Sudhahar, A. Bhaskaran","doi":"10.1016/j.nanoso.2024.101322","DOIUrl":"https://doi.org/10.1016/j.nanoso.2024.101322","url":null,"abstract":"Recent interest was been sparked by the potential of eco-friendly nanomaterials against human pathogenic bacteria’s and cancer cells. In the first method, TiO was obtained from green synthesis method by using seed extraction. In the second method, TiO nanoparticles were chemically synthesized by using the sol-gel process. Powder XRD, UV-Vis, ATR-IR, FESEM with EDAX, and HR-TEM were used to analyze the characteristics of the synthesized TiO nanoparticles. XRD results showed the well-developed crystallized smaller particles. The sizes of the crystalline particles were estimated by using Size-Strain Plot (SSP). The disc diffusion method was used to examine the antibacterial activity of TiO nanoparticles against gram bacteria. The synthesized TiO nanoparticles showed the largest inhibition zone and found to be more antibacterial against gram-negative bacteria. When using the green synthesized nanoparticles at a dose of 1000 µg/mL, the largest zone of inhibition against measured 15 mm. Then, the chemically synthesized TiO had the same concentration exhibited 7 mm inhibition zone. Cytotoxicity activities of human breast cancer cell were evolved by using MTT assay and their observation were showed more efficient cytotoxicity of green synthesized TiO nanoparticles compared to the chemically synthesized TiO nanoparticles. The antioxidant activity potential of green and chemically synthesized titanium dioxide nanoparticles was examined and the maximum inhibition in 400 µg/mL concentrations was reported to be 53 % and 45 %, respectively. Bovine Serum Albumin (BSA) denaturation technique revealed the significant anti-inflammatory action of green synthesized TiO, with protein denaturation of egg albumin determined as 92.2 % at 400 µg/mL concentration.","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"23 1","pages":""},"PeriodicalIF":5.45,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Potential in vitro antibacterial and anticancer properties of biosynthesized multifunctional silver nanoparticles using Martynia annua L. leaf extract 利用茉莉花叶提取物生物合成的多功能银纳米粒子的潜在体外抗菌和抗癌特性

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-04 DOI: 10.1016/j.nanoso.2024.101320

Megha B. Abbigeri, Bothe Thokchom, Santosh Mallikarjun Bhavi, Sapam Riches Singh, Pooja Joshi, Ramesh Babu Yarajarla

{"title":"Potential in vitro antibacterial and anticancer properties of biosynthesized multifunctional silver nanoparticles using Martynia annua L. leaf extract","authors":"Megha B. Abbigeri, Bothe Thokchom, Santosh Mallikarjun Bhavi, Sapam Riches Singh, Pooja Joshi, Ramesh Babu Yarajarla","doi":"10.1016/j.nanoso.2024.101320","DOIUrl":"https://doi.org/10.1016/j.nanoso.2024.101320","url":null,"abstract":"L., a medicinal herb rich in secondary metabolites, serves as a sustainable source for synthesizing silver nanoparticles (AgNPs). This study explores the eco-friendly production of AgNPs using aqueous leaf extract from and evaluates their biomedical applications. Characterization techniques including UV-Visible spectroscopy, FT-IR, SEM, TEM, and XRD confirm the spherical shape and FCC structure of the AgNPs, with a mean size of ∼11 nm and a surface charge of −24.4 mV. Biologically, the AgNPs exhibit potent antibacterial activity against both Gram positive and Gram negative bacteria, with dosage-dependent inhibition zones. AgNPs exhibited zone of inhibition comparable to those of standard antibiotic, penicillin, against Gram positive bacteria ( 22.09 mm and 23.72 mm) and Gram negative bacteria (, 13.82 mm and , 14.81 mm). They demonstrate cytotoxicity against NIH 3T3 and MCF-7 cells, with IC of 23.46 μg mL and 19.15 μg mL in cytotoxicity and anticancer assays, respectively. Notably, fragmentation assays reveal smear formation, indicating potential for inducing apoptosis. The synthesized AgNPs from exhibit spherical morphology, moderate stability, and significant antibacterial and anticancer properties, suggesting their potential as versatile biomedical agents.","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"140 1","pages":""},"PeriodicalIF":5.45,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142195391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of magnetic and electric properties of bismuth ferrite nanoparticles at different temperatures 不同温度下铋铁氧体纳米粒子的磁性和电性研究

IF 5.45

Nano-Structures & Nano-Objects Pub Date : 2024-09-01 DOI: 10.1016/j.nanoso.2024.101304

M.M. Rhaman , M.S. Miah , T. Ahmad

{"title":"Investigation of magnetic and electric properties of bismuth ferrite nanoparticles at different temperatures","authors":"M.M. Rhaman , M.S. Miah , T. Ahmad","doi":"10.1016/j.nanoso.2024.101304","DOIUrl":"10.1016/j.nanoso.2024.101304","url":null,"abstract":"<div><p>Multiferroic bismuth ferrite shows a massive interest in its potential application in magnetic and electronic devices however maintaining high purity in bismuth ferrite nanoparticles at different temperatures is a difficult task for researchers. Several samples are prepared with different annealing temperatures and investigated in different atmospheres to recognize magnetic and electrical properties. A xerogel powder of bismuth ferrite is synthesized by the sol-gel route. The powder then anneals at 500, 600, 700, and 800 °C to form a nanostructure. X-ray diffraction analysis confirms that the annealed samples are in rhombohedral structure with R3c space symmetry and show a significant increase in crystal size and reduction in lattice strain with increasing annealing temperature. FESEM reveals the microstructural features of annealed nanoparticles which represent the conversion of spherical to cubic morphology with annealing temperature. Vibrating sample magnetometer investigations were conducted as a function of annealing and surface (300, 200, 80 K) temperatures. Insignificant variations of saturation magnetization are detected with surface temperature, but considerable degradation is observed with increasing annealing temperatures. The band-gap energy of bismuth ferrite nanoparticles annealed at 500, 600, 700, and 800 ºC is measured and significant escalation is observed from 1.93 to 2.06 eV. Electrical property analyses have been investigated as a function of frequency at different surface temperatures of 50, 100, 150, 200, 250, 300, and 350 °C. Remarkable variations are established in the electric and magnetic properties. Bismuth ferrite has been widely investigated due to its promising multifunctional device applications such as memory devices, spintronics, sensors, actuators, and photocatalytic and photovoltaic applications.</p></div>","PeriodicalId":397,"journal":{"name":"Nano-Structures & Nano-Objects","volume":"39 ","pages":"Article 101304"},"PeriodicalIF":5.45,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0