Nanomedicine & Nanotechnology Open Access最新文献

{"title":"Perovskite Oxide Material Based Thin Films Prospect and Applicability","authors":"Emmanuel Ifeanyi Ugwu","doi":"10.23880/nnoa-16000240","DOIUrl":"https://doi.org/10.23880/nnoa-16000240","url":null,"abstract":"In this current dispensation and quest for material thin film that exhibits ranges of applications in various areas due to its wide spectrum of attractive properties such ferroelectricity, piezoelectricity, ferromagnetism dielectric, magnotoresistance, multiferroic with high efficiency in solar energy conversion couple with the fact that some are good for passivation of layer of metals and then invariably minimizes metal corrosion","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208177","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}

{"title":"Characterization of Chitosan-Titanium Oxide-Silver Nanocomposite Synthesized by Pulsed Laser Ablation in Liquid","authors":"Amer Al-Nafiey","doi":"10.23880/nnoa-16000254","DOIUrl":"https://doi.org/10.23880/nnoa-16000254","url":null,"abstract":"Chitosan-titanium oxide-silver CS-TiO2 -Ag nanocomposite was successfully synthesized using pulsed laser ablation in liquid with a frequency of 1 Hz and energy of 500 mJ, and the number of pulses of titanium and silver plates was 1000 and 500, respectively. The resulting nanocomposite was characterized using various techniques, including FTIR, UV-vis, X-ray diffraction, and SEM. The FTIR analysis showed that the chemical bonds of chitosan were superimposed with silver and titanium oxide. UV-vis spectrum showed that the absorbance peaks for CS-Ag and CS-TiO2 at 399.9 nm and 242 nm, respectively, and the calculating energy gaps of the CS-TiO2 ,CS-Ag and CS-TiO2 -Ag nanocomposites are found to be (4.18 , 2.82 and 2.74 ) eV, respectively. The SEM images for CS-TiO2 -Ag showed that the shape as semi-spherical, and the average grain size of the nanoparticles is 95 nm. Moreover, the X-ray diffraction analysis revealed that TiO2 and Ag were polycrystalline and that the average crystallite sizes for CS-Ag, CS-TiO2 , and CS-TiO2 -Ag were 5.96, 5.96, and 5.95 nm, respectively. This study demonstrated that pulsed laser ablation in liquid is an easy and safe method for synthesizing CS-TiO2 -Ag nanocomposites that can be used in various applications. The characterization techniques used in this study provided valuable insights into the properties and structures of the synthesized nanocomposite material.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206882","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}

{"title":"Aspirin Loaded Niosomes A Novel Drug Delivery System by Ether Injection Method","authors":"Abbaraju Krishna sailaja","doi":"10.23880/nnoa-16000237","DOIUrl":"https://doi.org/10.23880/nnoa-16000237","url":null,"abstract":"Acetylsalicylic acid (ASA), generally known as aspirin, is a nonsteroidal anti-inflammatory medication (NSAID) used to treat inflammation, fever, and pain. It also has an anti-platelet action, which lowers blood clotting by reducing platelet levels and preventing heart attacks. Aspirin's common gastrointestinal side effects are stomach ulcers and bleeding. Niosomes are vesicular drug delivery system that can enhance therapeutic efficacy and minimise side effects by encapsulating aspirin into vesicles. In this study, niosomes were prepared by the ether injection method, and a total of six formulations were prepared and evaluated, of which N2 showed 98.9% drug content and 80.8% entrapment efficiency. In vitro drug release was performed, and N4 showed 45.5% drug release at 3rd hour.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206897","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}

{"title":"Seismic Analysis of RCC Water Tanks under Near-Fault Condition","authors":"Veluswamy Selvan","doi":"10.23880/nnoa-16000252","DOIUrl":"https://doi.org/10.23880/nnoa-16000252","url":null,"abstract":"Reinforced concrete water tank plays a important role in providing sustainable water supply to the our community. We use water supply for our daily basic needs, industrial needs, agriculture, firefighting purposes etc. Due to its importance factor, water tank’s structural integrity was important during an critical event of time. Seismic design of reinforced concrete water tanks is a critical aspect of ensuring the safety and functionality of these structures during seismic activities. The importance of seismic design for reinforced concrete water tanks extends beyond just safeguarding the tanks themselves. These tanks often provide a critical water supply during post-earthquake recovery and emergency response operations. Therefore, ensuring their structural integrity helps to maintain an essential resource for drinking, sanitation, and firefighting purposes when it is most needed. Earthquake creates large number of lateral forces. The amount of damage which exerts on the building depends on both the seismic activity and the building’s property. Water tanks has a huge amount of mass accumulated on the single point at a certain height which makes them vulnerable to some kinds on critical events. Capacity based design provided to be useful for designing a building for withstanding earthquake. But we need to know how to be building reacts to a certain event before we design the water tank according to it. Performance-based design philosophy plays a vital role in predicting the performance level associated with several levels of hazardous earthquake events. For this purpose, the building needs to be designed beyond the elastic limit of the member. The analysis procedure was broadly classified into linear and nonlinear methods of analysis, in which linear is only used in case the building won’t reach the collapse load. But during an earthquake, the structural loading will reach the collapse load, and the material stresses will be above yield stresses. So the material and geometrical properties of the building need to be considered heterogeneous and non-linear. It is focused on behavior of RC water tank under near fault excitation condition. Two water tank model was used for this thesis where one can hold up to 500m3 of water and other is up to 1370m3 of water. The finite element modelling and numerical analysis is done using ABAQUS software.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206895","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}

{"title":"Curvature Optimised Plasmonic Gold-Gallium Oxide Nanocomposites for High Temperature Optical Detection of NO2","authors":"Gnanaprakash Dharmalingam","doi":"10.23880/nnoa-16000235","DOIUrl":"https://doi.org/10.23880/nnoa-16000235","url":null,"abstract":"NO2 emissions are of great concern to human health, with projected increases in consumption of its sources making it vital to develop sensors for monitoring its production in harsh environment such as combustion sources. Plasmonic nanomaterials can be extremely sensitive and hence useful in this regard, but suffer from inherent thermal stability drawbacks. The plasmonic and morphological characteristics of mixed polygon incorporated gallium oxide nanocomposites and their dependence on the changes in surrounding environment on gas exposure has been investigated here. We have detected NO2 at high temperature (800°C) by monitoring the change in intensity of the surface plasmon at the interfaces of the gold gallia nanocomposite as a function of time for different concentrations. The results obtained in this study demonstrates that it is a promising sensing material to detect oxidizing gases like NO2 .","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206901","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}

{"title":"Green Synthesis of Iron Oxide Nanoparticles Using Lactobacillus Plantarum Mk-55 and In Vitro Assessment of Cytotoxic Activity","authors":"Serap Yalcin","doi":"10.23880/nnoa-16000242","DOIUrl":"https://doi.org/10.23880/nnoa-16000242","url":null,"abstract":"Recently, there has been a significant focus among researchers on developing efficient green chemistry methods for synthesizing metal nanoparticles. The primary objective is to discover an environmentally friendly approach to nanoparticle production. Magnetic nanoparticles have garnered considerable attention in the fields of nanoscience and nanotechnology due to their desirable physicochemical properties, small particle size, and low toxicity. This study aims to synthesize iron oxide nanoparticles using supernatant from Lactobacillus plantarum MK-55 environmentally-friendly process. In the study, iron oxide nanoparticles were synthesized by in situ method. Then, green synthesis was carried out with MK-55 bacterial supernatant. The synthesized nanoparticles were characterized by FTIR and SEM, and cytotoxicity and uptake analyzes were made. The toxic effect of green synthesis nanoparticles on cancer cells was determined according to the results of the study. According to the results obtained, it was observed that the successfully synthesized nanoparticles were effective on cancer cells. However, in vivo studies are needed in further analysis.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136207098","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}

{"title":"Toxicity of the Quatro Stimuli Nanocontainers in Rats","authors":"George Kordas","doi":"10.23880/nnoa-16000243","DOIUrl":"https://doi.org/10.23880/nnoa-16000243","url":null,"abstract":"An artificial intelligent drug delivery system (DDS) was produced for cancer treatment, consisting of a shell made of three polymers: the first is sensitive to temperature, the second is sensitive to pH, and the third is sensitive to redox","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136207106","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}

{"title":"The Study of Mechanical Properties of Biological Cells","authors":"","doi":"10.23880/nnoa-16000257","DOIUrl":"https://doi.org/10.23880/nnoa-16000257","url":null,"abstract":"Cells are the basic unit of all living organisms. They can realize various specific functions of living organisms such as energy conversion, material transportation, signal transduction, and expression of genetic information. They are the foundation for human research on the life activities of all living organisms. As a line of defense for cells to protect themselves, the cell membrane has certain mechanical properties that can ensure the balance and stability of various normal biochemical reactions inside and outside the cell during its survival, such as cell growth, movement, division, etc. When cells face changes in the environment, their surface mechanical properties will also change to a certain extent. However, the mechanism and manner in which cells respond to environmental influences are still not very clear. Therefore, in order to understand this complex mechanical behavior of cells in living organisms, it is necessary to analyze the mechanical properties of the cell surface.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208179","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}

{"title":"Governing Technology: “Nanotechnology Risk Management and Public Health Protection Act” A Harmonized Approach to Promoting Innovation While Protecting Global Health","authors":"Ilise L Feitshans","doi":"10.23880/nnoa-16000229","DOIUrl":"https://doi.org/10.23880/nnoa-16000229","url":null,"abstract":"Nanotechnology is globally in food, clothing, aviation, transport, housing construction, weaponry, medical devices, new medicines and outer space exploration. Since risks associated with the new technology emerge slowly there is time to create a rational global oversight mechanism that promotes innovation and protects public health, Because no commercial product is made entirely in the same place from start to finish without any components from other nations, nor is it marketed only in the place where it was made, innovators, must catalogue a multitude of laws and drill down into key subjects across jurisdictions1 in order to comply with law2 and thus soon find their compliance efforts in a swamp of legal documents, regulations and guidance without a compass to figure out which regulatory path works best or is appropriate. This plethora of laws, regardless how well intended, creates disinformation and blocking both public education and the free flow of commerce. This article proposes an international nano-risk governance framework with a bioethics commission, empowered to examine questions about nanotechnology and its commercial applications and to disseminate information to the general public. The “Nanotechnology Risk Management and Public Health Protection Act” fills a void in the nanoregulatory landscape, where information is plentiful but trustworthy sources are rare.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208383","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}

{"title":"Nanotechnology's Quantum Leap: Illuminating the Future of Space Exploration","authors":"Shivani R Pandya","doi":"10.23880/nnoa-16000253","DOIUrl":"https://doi.org/10.23880/nnoa-16000253","url":null,"abstract":"In the vast expanse of the cosmos, where the intersection of human knowledge and the universe’s mysteries takes place, nanotechnology has emerged as a guiding star, propelling space exploration into a new era. As we peer beyond our earthly confines, the fusion of nanotechnology with space research promises groundbreaking possibilities, reshaping our understanding of the cosmos and propelling us towards uncharted horizons.","PeriodicalId":286628,"journal":{"name":"Nanomedicine & Nanotechnology Open Access","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206890","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}