Nanoscience and Nanotechnology Letters最新文献_第8页

Sintering Properties of Magnetic Separation Nonferrous Metallurgical Tailings 磁选有色冶金尾矿的烧结性能

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3188

X. Zhou, Chuan‐Yu Zhang, Song Pu, Kai Yang, Zhe Shi

{"title":"Sintering Properties of Magnetic Separation Nonferrous Metallurgical Tailings","authors":"X. Zhou, Chuan‐Yu Zhang, Song Pu, Kai Yang, Zhe Shi","doi":"10.1166/NNL.2020.3188","DOIUrl":"https://doi.org/10.1166/NNL.2020.3188","url":null,"abstract":"In this paper, the tailings produced by non-ferrous metallurgy were magnetically separated to obtain magnetic separation tailings. The sintering performance of magnetic separation tailings was studied by sintering cup experiment platform. In the research process, the differences in\u0000 sintering process of different magnetic separation tailings were compared, including vertical sintering speed, sintering coefficient, drum strength, finished product rate, end point temperature and other sintering indexes. At the same time, the obtained sinter was subjected to chemical analysis\u0000 to obtain its specific components. The influence of magnetic separation tailings with different contents on sintering was obtained by ore blending. The experimental results showed that the copper tailings are not sintered and the yield is only 0%. Tin tailings are not sintered and the yield\u0000 is only 22.30%. The aluminum tailings can be sintered into lumps with a yield of only 57.10%. As the proportion of magnetic separation tailings increases, the vertical sintering speed decreases, the sintering utilization coefficient decreases, the sinter drum index decreases, the yield decreases,\u0000 the sinter grade decreases, and the SiO2, S and P contents increase. In actual production, the proportion of magnetic separation tailings should be controlled below 10%.","PeriodicalId":18871,"journal":{"name":"Nanoscience and Nanotechnology Letters","volume":"12 1","pages":"885-889"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43572290","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

Preparation of a Carboxymethyl Chitosan Nanocomposite and Its Application in Fracture Repair 羧甲基壳聚糖纳米复合材料的制备及其在骨折修复中的应用

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3193

Juren He, Liang Yang, Xiaojie Song, Yangang Gao

引用次数: 0

Chitosan-Based Composite Nanosilver Gel Application in Nursing Care of Intensive Care Unit Patients with Severe Burns 壳聚糖基复合纳米银凝胶在重症烧伤患者护理中的应用

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3192

Ningning Rong, Ruyan Yang, Yongzan Lu

{"title":"Chitosan-Based Composite Nanosilver Gel Application in Nursing Care of Intensive Care Unit Patients with Severe Burns","authors":"Ningning Rong, Ruyan Yang, Yongzan Lu","doi":"10.1166/NNL.2020.3192","DOIUrl":"https://doi.org/10.1166/NNL.2020.3192","url":null,"abstract":"Burns are the most common clinical disease in daily life. Burn wounds are vulnerable to bacterial infection due to factors such as edema, hypoxia, and ischemia. However, traditional antibacterial supplements do not achieve satisfactory nursing results. Here, we use chitosan as a carrier\u0000 by introducing silver nanoparticles (AgNPs) and recombinant human epidermal growth factor (rhEGF) together. We have constructed a new type of high moisture retention, high oxygen permeability, high-efficiency chitosan-nanosilver@recombinant human epidermal growth factor (CSAgNPs@ rhEGF) antibacterial\u0000 hydrogel dressing. The clinical trials showed that the antibacterial effect of CS-AgNPs@rhEGF hydrogel dressings against Pseudomonas aeruginosa (Pa.) and Staphylococcus epidermidis (Se.) was significantly better than that of petroleum jelly and 1% silver sulfadiazine\u0000 (1%-SSD). In addition, rhEGF promoted tissue cell proliferation and repair. Thus, the CS-AgNPs@rhEGF hydrogel dressing can significantly improve the wound healing rate and healing time in patients with severe burns compared with traditional dressings. Thus, CS-AgNPs@rhEGF hydrogel dressing\u0000 is expected to provide a new choice for clinical burn patients to prevent wound infection and tissue repair, and has a broad prospect in burn wound healing.","PeriodicalId":18871,"journal":{"name":"Nanoscience and Nanotechnology Letters","volume":"12 1","pages":"939-945"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48752595","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: 2

Treatment of Landfill Leachate by Combined Submerged Membrane Bioreactor (SMBR) and Electrochemical Oxidation 浸没式膜生物反应器与电化学氧化联合处理垃圾渗滤液

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3185

Bo Peng, Di Qiu, Xiaogang Wu

引用次数: 2

Effect of Carbothermal Reduction Nitriding of Si/SiO2 Composite Green on Properties of Fused Silica Ceramics 碳热还原氮化Si/SiO2复合材料对熔融硅陶瓷性能的影响

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3191

Tian Liang, Hou Qinglin, Yingxia Wang, Yihui Hou, Tao Chen

引用次数: 0

Clinical Analysis of Human Papillomavirus Infection Types Distribution in Tissues of Cervical Squamous Cell Carcinoma 宫颈鳞状细胞癌组织中人乳头瘤病毒感染类型分布的临床分析

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3181

Xiumei Zhang, Xianhai Zhu, Xiaolan Xu, Chen-wei Sun, J. Geng, Xuemei Fan

{"title":"Clinical Analysis of Human Papillomavirus Infection Types Distribution in Tissues of Cervical Squamous Cell Carcinoma","authors":"Xiumei Zhang, Xianhai Zhu, Xiaolan Xu, Chen-wei Sun, J. Geng, Xuemei Fan","doi":"10.1166/NNL.2020.3181","DOIUrl":"https://doi.org/10.1166/NNL.2020.3181","url":null,"abstract":"In this article, we investigated prevalence and distributed types of human papillomavirus (HPV) among female cervical squamous cell carcinoma patients in eastern China (mainly in Jiangsu Province). Tissue samples of total 1021 cases with cervical squamous cell carcinoma were incurred\u0000 from female patients passing through biopsy or surgery. HPV DNA and genotypes of all subjects were examined using polymerase chain reaction (PCR) and gene-chip. There were 937 positive cases among 1021 cervical squamous cell carcinoma tissue samples with the total HPV infection rate of 91.77%.\u0000 The HPV infection rate of single type was 75.42%. The predominant types of single infection with HPV were HPV 16 (52.60%), HPV 18 (5.19%), HPV 58 (4.51%), HPV 52 (2.84%), HPV 31 (2.74%), HPV 33 (2.45%), HPV 59 (1.76%) and HPV 45 (0.88%). The HPV infection rate of multiple types was 16.35%.\u0000 The predominant types of multiple infection with HPV were HPV 16+18 (19.16%), 16+58 (6.59%),16+52 (5.99%), 16+33 (5.39%), 11+16 (2.99%), 16+31 (2.99%), 16+45 (2.99%), 16+42 (2.40%) and 16+59 (2.40%). Cervical squamous cell carcinomas had a close relationship with HPV infection. HPV 16, 18,\u0000 58, 52, 31, 33, 59, 45 with high prevalence in the cervical squamous cell carcinoma deserve great attention in eastern China (mainly in Jiangsu Province). The protection spectrum of divalent vaccine and ninevalent vaccine were, respectively, 68.52% (642/937) and 90.82% (851/937) in the cases\u0000 of cervical squamous cell carcinomas.","PeriodicalId":18871,"journal":{"name":"Nanoscience and Nanotechnology Letters","volume":"12 1","pages":"921-927"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41799384","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

Enhanced Ciprofloxacin Degradation Over Pt@BaZrO3/g-C3N4 Heterojunctions Beneath Visible Light Illumination 可见光照射下Pt@BaZrO3/g-C3N4异质结增强环丙沙星降解

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3190

M. Alhaddad

{"title":"Enhanced Ciprofloxacin Degradation Over Pt@BaZrO3/g-C3N4 Heterojunctions Beneath Visible Light Illumination","authors":"M. Alhaddad","doi":"10.1166/NNL.2020.3190","DOIUrl":"https://doi.org/10.1166/NNL.2020.3190","url":null,"abstract":"In this investigation, various proportions of Pt@BaZrO3 (at 1∼4 wt.%) accommodating 2.0 wt% Pt were adopted to establish Pt@BaZrO3/g-C3N4 nanocomposites of improved photocatalytic performance. H2PtCl6 nanoparticles\u0000 as well as mesoporous BaZrO3 and g-C3N4 were utilized to develop the prescribed nanocomposites via sonication-mixture routine. The photocatalytic achievement for the upgraded Pt@BaZrO3/g-C3N4 nanocomposites beneath visible light\u0000 irradiation were tested by examining ciprofloxacin (CIP) degradation. Enhanced charge transfer and retarded charges’ recombination were established amid Pt, BaZrO3 NPs and g-C3N4 nanosheets in the developed heterojunctions. The proportion (wt.%) of Pt@BaZrO3\u0000 was found to be an essential parameter in governing the photocatalytic efficacy of the promoted Pt@BaZrO3/g-C3N4 nanocomposites. Moreover, complete photocatalytic decomposition of CIP was established over Pt@BaZrO3/g-C3N4 nanocomposite,\u0000 accommodating 3 wt.% Pt@BaZrO3 NPs. Such superior performance was correlated to the great ability of the Pt@BaZrO3/g-C3N4 to absorb visible light in addition to the prolonged charge separation amid the photo-induced charge carriers.","PeriodicalId":18871,"journal":{"name":"Nanoscience and Nanotechnology Letters","volume":"12 1","pages":"874-884"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42803749","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

Understanding of Growth Mechanism and Structure of Multilayer Thin Films via Layer-by-Layer Hydrogen Bonded Assembly from Polymer Brushes-Grafted Surface 聚合物刷表面逐层氢键组装生长多层薄膜的机理和结构

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3182

Hua Wei, Hua Zhang, Yang Zhou, Zongbao Wang, Rong Wang, J. Chen

引用次数: 0

Examining and Delivery and Retention of a Paclitaxel Nano-Drug in Oral Squamous Cell Carcinoma Tissues 紫杉醇纳米药物在口腔鳞状细胞癌组织中的检测、递送和保留

Nanoscience and Nanotechnology Letters Pub Date : 2020-07-01 DOI: 10.1166/NNL.2020.3196

Fengping Mou, Li Xiao, Yuanqin Xu

{"title":"Examining and Delivery and Retention of a Paclitaxel Nano-Drug in Oral Squamous Cell Carcinoma Tissues","authors":"Fengping Mou, Li Xiao, Yuanqin Xu","doi":"10.1166/NNL.2020.3196","DOIUrl":"https://doi.org/10.1166/NNL.2020.3196","url":null,"abstract":"This study aims to investigate the therapeutic effect of a paclitaxel-loaded nano-drug (PTX-mPEGPLA) on oral squamous cell carcinoma (OSCC). PTX-mPEG-PLA nanoparticle (NP) was prepared by loading paclitaxel into the mPEG-PLA nanoparticle and purified by a thin-film hydration method.\u0000 C57BL/6 mice were used to establish a murine OSCC model. The mice were treated with saline control (G1), paclitaxel (G2), or PTX-mPEG-PLA NPs (G3). After 4 weeks of differential treatment, the saliva of mice in the G1, G2, and G3 groups was collected to detect the concentration of protein\u0000 markers of OSCC. Also, venous blood and cancer tissues of mice in the three groups were collected for drug concentration measurements. The paclitaxel concentration and retention in G3 mice were significantly higher and more prolonged than those in G2 mice, respectively (P < 0.05).\u0000 Compared to the level of OSCC protein markers in the saliva of mice in G1 and G2 that in G3 was the lowest. PTX-mPEG-PLA NPs demonstrates effective targeting in the treatment of oral squamous cell carcinoma in mice. It can deliver the drug to the cancerous tissues, increase the drug retention\u0000 in the same tissues, and effectively inhibit the proliferation and metastasis of malignant tumors.","PeriodicalId":18871,"journal":{"name":"Nanoscience and Nanotechnology Letters","volume":"12 1","pages":"946-952"},"PeriodicalIF":0.0,"publicationDate":"2020-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44052972","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 Titanium Nanoparticles on Osteoblast Proliferation 钛纳米粒子对成骨细胞增殖的影响

Nanoscience and Nanotechnology Letters Pub Date : 2020-04-01 DOI: 10.1166/nnl.2020.3126

Yuan Wu, Cui-Zhong Liu, Ming Gao, Q. Liang, Yu Jiang

引用次数: 2