Journal of nanoscience and nanotechnology最新文献_第3页

Gold Nanoparticles with Dexmedetomidine Regulate GSK-3β to Reduce Neurocognitive Effects in Anesthetized Rats. 右美托咪定纳米金调控GSK-3β减轻麻醉大鼠神经认知效应

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.18745

Xiaoxia Zhang, Zumin Xing, Jiyuan Li, Shuyi Tang, Yiwen Zhang

引用次数: 0

Evaluation of Nano-Particulate-Matter-Induced Lung Injury in Mice Using Quantitative Micro-Computed Tomography. 用定量微计算机断层扫描评价纳米颗粒物质诱导的小鼠肺损伤。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19522

Meiru Mao, Jianglong Kong, Kui Chen, Jiaxin Zhang, Ziteng Chen, Jiacheng Li, Yanan Chang, Hui Yuan, Xiaoyue Shi, Guogang Chen, Jian Zhang, Juan Li

{"title":"Evaluation of Nano-Particulate-Matter-Induced Lung Injury in Mice Using Quantitative Micro-Computed Tomography.","authors":"Meiru Mao, Jianglong Kong, Kui Chen, Jiaxin Zhang, Ziteng Chen, Jiacheng Li, Yanan Chang, Hui Yuan, Xiaoyue Shi, Guogang Chen, Jian Zhang, Juan Li","doi":"10.1166/jnn.2021.19522","DOIUrl":"https://doi.org/10.1166/jnn.2021.19522","url":null,"abstract":"Nano-particulate matters (NPM) induced the lung injury in mice were evaluated using quantitative micro-computed tomography in the present article. It is an important negative effect of health problems that NPM exposure provokes changes in the lung injury. The micro-computed tomography (CT) to assess lung injury in mouse models has been investigated. The dynamic structural changes in a NPM-induced lung injury mouse mode were monitored. Adults female BALB/C mice were repeatedly exposed to NPM, and micro-CT scans were performed at day 0, 3, 5 and 9. Lung samples were also collected for histological analysis at each time point. The total lung volume, the injured lung volume, and the normal lung volume were defined and calculated volume during the phase of NPM-exposure on the mice. The total and injured lung volumes of NPM-exposed mice were significantly larger than those of the mice at day 5 and 9. The data from micro-CT was consistent with alveolar enlargement and destruction by histological quantification from pathological section. The study for NPM-induced lung injury model by micro-CT may extend our understanding of the distinct pathophysiology of NPM induced lung injury in mice.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6041-6047"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39159097","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: 3

Silver Nanoprism for Selective and Sensitive Detection of Hg⁺² Ions. 银纳米片选择性灵敏检测Hg+2离子。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19529

Avneesh Mittal, Komal Gupta, Balaram Pani, Gulshan Kumar, Gopala Ram Bhadu, Sachin Kumar Godara, Ratyakshi Nain, Sidhharth Sirohi

引用次数: 1

Highly Efficient and Thermally Stable Eu²⁺-Doped Ca₉Nd(PO₄)₇ Phosphor for Near-Ultraviolet White-Emission LED Applications. 用于近紫外白光发光LED的高效热稳定Eu2+掺杂Ca9Nd(PO₄)7荧光粉。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19505

Jian Zhou, Si-Li Ren

{"title":"Highly Efficient and Thermally Stable Eu2+-Doped Ca9Nd(PO₄)7 Phosphor for Near-Ultraviolet White-Emission LED Applications.","authors":"Jian Zhou, Si-Li Ren","doi":"10.1166/jnn.2021.19505","DOIUrl":"https://doi.org/10.1166/jnn.2021.19505","url":null,"abstract":"Various Eu2+-based Ca9Nd(PO₄)7 (CNP:xEu2+, with different x values) materials are prepared via facile solid-state reaction. Their crystal structures are investigated in detail by means of the Rietveld refinement. The structure of CNP:Eu2+ with a trigonal lattice is analogous to that of β-Ca₃(PO₄)₂. Therefore, Eu2+ ions tend to incorporate calcium sites in the host. All the obtained samples can be excited using near ultraviolet (nUV) light to present blue-green emission. An optimal dopant concentration is verified at x = 0.8 with a large critical interaction radius (11.21 Å). The mechanism of the concentration quenching effect is assigned to the multipole-multipole interaction. CNP:xEu2+ possesses a short decay lifetime of ∼60 μs and can endure severe working conditions thanks to its great thermal stability. The relative photoluminescence (PL) intensity of CNP:0.8Eu2+ can retain 84.75% of the pristine intensity measured at room temperature, and the relative intensity remains as high as 69.97% at 423 K. The CNP:Eu2+ phosphors also show great performance in the WLED demonstration. The correlated color temperature (CCT) of the prototype device is 3404 K, with an extremely high Ra (97.6). Therefore, CNP:xEu2+ could be regarded as a promising alternative to blue green phosphors in nUV chip-based WLED applications.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5859-5866"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158763","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

Carboxymethyl Cellulose Hydrogel Based Formulations of Zinc Hydroxide Nitrate-Sodium Dodecylsulphate-Bispyribac Nanocomposite: Advancements in Controlled Release Formulation of Herbicide. 羧甲基纤维素水凝胶基的硝酸锌-十二烷基硫酸钠-双嘧菌酯纳米复合材料:除草剂控释制剂研究进展。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19499

Sharifah Norain Mohd Sharif, Norhayati Hashim, Illyas Md Isa, Suriani Abu Bakar, Mohamad Idris Saidin, Mohamad Syahrizal Ahmad, Mazidah Mamat, Mohd Zobir Hussein, Rahadian Zainul

{"title":"Carboxymethyl Cellulose Hydrogel Based Formulations of Zinc Hydroxide Nitrate-Sodium Dodecylsulphate-Bispyribac Nanocomposite: Advancements in Controlled Release Formulation of Herbicide.","authors":"Sharifah Norain Mohd Sharif, Norhayati Hashim, Illyas Md Isa, Suriani Abu Bakar, Mohamad Idris Saidin, Mohamad Syahrizal Ahmad, Mazidah Mamat, Mohd Zobir Hussein, Rahadian Zainul","doi":"10.1166/jnn.2021.19499","DOIUrl":"https://doi.org/10.1166/jnn.2021.19499","url":null,"abstract":"The usefulness of carboxymethyl cellulose (CMC) as a matrix material in enhancing the controlled release formulations of bispyribac (BP) herbicide from the interlayer gallery of zinc hydroxide nitratesodium dodecylsulphate-bispyribac (ZHN-SDS-BP) nanocomposite was investigated. The CMC coated nanocomposite, ZHN-SDS-BP-CMC was characterised using several instruments for the determination of its physicochemical properties. The release rates of the BP were measured using a UV spectrophotometer, and the aqueous solutions containing PO3-₄ , SO2-₄ and Cl- were selected as release media in the release studies so as to mimic the real conditions of environmental soil. Significant release time delays, triggered by the gelation forming ability and hygroscopic nature of CMC, were observed in all release media, and the release processes were found to behave in a concentration-dependent manner in all release media. Fitting the release data into several kinetic models demonstrated that release in aqueous solutions of Na₃PO₄ and Na₂SO₄ was governed by pseudo second order processes, whereas the release in an aqueous NaCl solution was governed by the parabolic diffusion kinetic model. The potential of CMC in prolonging the release of BP from ZHN-SDS-BP-CMC can potentially help in reducing the pollution resulting from the overuse of pesticides.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"5867-5880"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158764","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: 3

Aqueous Mg-Ion Supercapacitor and Bi-Functional Electrocatalyst Based on MgTiO₃ Nanoparticles. 基于MgTiO₃纳米颗粒的mg离子超级电容器和双功能电催化剂。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19321

S Maitra, R Mitra, T K Nath

{"title":"Aqueous Mg-Ion Supercapacitor and Bi-Functional Electrocatalyst Based on MgTiO₃ Nanoparticles.","authors":"S Maitra, R Mitra, T K Nath","doi":"10.1166/jnn.2021.19321","DOIUrl":"https://doi.org/10.1166/jnn.2021.19321","url":null,"abstract":"Supercapacitor and hydrogen-based fuel cells are cheap and environmental-friendly next-generation energy storage devices that are intended to replace Lithium-ion batteries. Metal oxide nanostructures having perovskite crystal structure have been found to exhibit unique electrochemical properties owing to its unique electronic band structure and multiple redox-active ions. Herein, MgTiO₃ nanoparticles (MTO-1) were synthesized by wet-chemical sol-gel technique with an average particle size of 50-55 nm, which exhibited superior supercapacitor performance of capacitance (C) = 25 F/g (at 0.25 A/g), energy density (ED) = 17 Wh/kg, power density (PD) = 275 W/kg and 82.41% capacitance retention (after 1000 cycles). Aqueous 1 M Mg(ClO₄)₂ solution was used as the electrolyte. MTO-1 revealed an overpotential () = 1.329 V and Tafel slope (b) = 374 mV/dec towards Oxygen Evolution Reaction (OER) electrocatalyst and exhibited = 0.914 V and b = 301.4 mV/dec towards Hydrogen Evolution Reaction (HER) electrocatalyst, both in presence of alkaline 1 M KOH solution, making these MgTiO₃ nanoparticles very promising for potential use in various technologically important electrochemical applications.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6217-6226"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158964","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: 3

Tunable Cytotoxicity and Selectivity of Phosphonium Ionic Liquid with Aniline Blue Dye. 苯胺蓝染料磷离子液体的可调细胞毒性和选择性。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19535

Samantha Macchi, Mohd Zubair, Nawab Ali, Grégory Guisbiers, Noureen Siraj

{"title":"Tunable Cytotoxicity and Selectivity of Phosphonium Ionic Liquid with Aniline Blue Dye.","authors":"Samantha Macchi, Mohd Zubair, Nawab Ali, Grégory Guisbiers, Noureen Siraj","doi":"10.1166/jnn.2021.19535","DOIUrl":"https://doi.org/10.1166/jnn.2021.19535","url":null,"abstract":"Ionic liquids are an interesting class of materials that have recently been utilized as chemotherapeutic agents in cancer therapy. Aniline blue, a commonly used biological staining agent, was used as a counter ion to trihexyltetradecylphosphonium, a known cytotoxic cation. A facile, single step ion exchange reaction was performed to synthesize a fluorescent ionic liquid, trihexyltetradecylphosphonium aniline blue. Aqueous nanoparticles of this hydrophobic ionic liquid were prepared using reprecipitationmethod. The newly synthesized ionic liquid and subsequent nanoparticles were characterized using various spectroscopic techniques. Transmission electron microscopy and zeta potential measurements were performed to characterize the nanoparticles' morphology and surface charge. The photophysical properties of the nanoparticles and the parent aniline blue compound were studied using absorption and fluorescence spectroscopy. Cell viability studies were conducted to investigate the cytotoxicity of the newly developed trihexyltetradecylphosphonium aniline blue nanoparticles in human breast epithelial cancer cell line (MCF-7) and its corresponding normal epithelial cell line (MCF-10A) in vitro. The results revealed that the synthesized ionic nanomedicines were more cytotoxic (lower IC50) than the parent chemotherapeutic compound in MCF-7 cells. Nanoparticles of the synthesized ionic liquid were also shown to be more stable in both aqueous and cellular media and more selective than parent compounds towards cancer cells.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6143-6150"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8919709/pdf/nihms-1783303.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39159033","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Non-Antibacterial and Antibacterial ZnO Nanoparticles Composed of Different Surfactants. 由不同表面活性剂组成的非抗菌和抗菌ZnO纳米颗粒。

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19513

Saee Gharpure, Tushar Jadhav, Chetan Ghotekar, Anuja Jagtap, Yogita Vare, Balaprasad Ankamwar

引用次数: 3

Antibacterial Activities of Biosynthesized ZnO Nanoparticles Using Leaf and Fruit Extracts of Neolamarckia cadamba. 新树叶和果实提取物合成氧化锌纳米颗粒的抗菌活性研究

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19538

Saee Gharpure, Rachana Yadwade, Shuana Mehmood, Balaprasad Ankamwar

{"title":"Antibacterial Activities of Biosynthesized ZnO Nanoparticles Using Leaf and Fruit Extracts of Neolamarckia cadamba.","authors":"Saee Gharpure, Rachana Yadwade, Shuana Mehmood, Balaprasad Ankamwar","doi":"10.1166/jnn.2021.19538","DOIUrl":"https://doi.org/10.1166/jnn.2021.19538","url":null,"abstract":"Zinc oxide nanoparticles have been biosynthesized with the help of Neolamarckia cadamba leaf and fruit extracts. ZnO nanoparticles were tested for antibacterial activity before and after calcination against Gram positive (Staphylococcus aureus, Bacillus subtilis) as well as Gram negative micro-organisms (Escherichia coli, Pseudomonas aeruginosa) within the concentration range 0.625-10 mg/mL with the help of well diffusion technique. Higher antibacterial potential has been observed in ZnO nanoparticles synthesized using leaf extract in comparison with those synthesized using fruit extract. Increased antibacterial activity was observed before calcination as compared to after calcination. ZnO synthesized using leaf extract were observed to show significant antibacterial potential against E. coli, S. aureus along with P. aeruginosa before calcination as well as against E. coli after calcination. Similarly, ZnO nanoparticles synthesized using fruit extract exhibited antibacterial activity against E. coli and P. aeruginosa before calcination and against E. coli after calcination. Both the ZnO nanoparticles before and after calcination did not show any antibacterial activity against B. subtilis. Thus, ZnO nanoparticles can serve a dual purpose by its application as an antibacterial agent against susceptible micro-organisms as well as biocompatible carrier system for drug delivery applications in case of non-antibacterial properties by virtue of its inertness as well as easy disposal.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6168-6182"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39158958","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: 3

Synthesis, Doping and Electrochemical Properties of Zn₃V₃O₈. Zn₃V₃O8的合成、掺杂及电化学性能

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI: 10.1166/jnn.2021.19532

Zheng-Yong Yuan, Yao Xiao, Xiao-Qing Yang, Chuan-Qi Feng

{"title":"Synthesis, Doping and Electrochemical Properties of Zn₃V₃O8.","authors":"Zheng-Yong Yuan, Yao Xiao, Xiao-Qing Yang, Chuan-Qi Feng","doi":"10.1166/jnn.2021.19532","DOIUrl":"https://doi.org/10.1166/jnn.2021.19532","url":null,"abstract":"The Zn₃V₃O8 was synthesized by solvothermal method combined with heat treatment using Zn(NO₃)₃ · 6H₂O and NH₄VO₃ as raw materials. The Zn₃V₃O8 was doped by Co2+ to form Zn2.88Co0.12V₃O8. The samples were characterized by X-ray diffraction and scanning electron microscopy techniques. Electrochemical tests showed that the initial discharge specific capacity for Zn2.88Co0.12V₃O8 was 640.4 mAh·g-1 when the current density was 100 mA·g-1, which was higher than that of pure Zn₃V₃O8 (563.5 mAh · g-1). After 80 cycles, the discharge specific capacity of Zn2.88Co0.12V₃O8 could maintain at 652.2 mAh · g-1, which was higher than that of pure Zn₃V₃O8 (566.8 mAh·g-1) under same condition. The Zn2.88Co0.12V₃O8 owned better rate performances than those of pure Zn₃V₃O8 also. The related modification mechanisms were discussed in this paper.","PeriodicalId":16417,"journal":{"name":"Journal of nanoscience and nanotechnology","volume":"21 12","pages":"6120-6125"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"39159030","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