Nanotechnology Development最新文献

Preparation and application of various nanoparticles in biology and medicine 各种纳米粒子的制备及其在生物和医学中的应用

Nanotechnology Development Pub Date : 2013-09-23 DOI: 10.4081/ND.2013.E2

V. Gasparyan

引用次数: 4

Effect of nanoparticles suspension on the growth of mung (Vigna radiata) seedlings by foliar spray method 纳米颗粒悬浮液对叶面喷雾法绿豆幼苗生长的影响

Nanotechnology Development Pub Date : 2013-02-05 DOI: 10.4081/ND.2013.E1

S. Dhoke, Pramod Mahajan, R. Kamble, A. Khanna

引用次数: 167

Preparation, characterization and scale-up of sesamol loaded solid lipid nanoparticles 芝麻酚负载固体脂质纳米颗粒的制备、表征和规模化研究

Nanotechnology Development Pub Date : 2012-07-31 DOI: 10.4081/ND.2012.E8

Vandita Kakkar, I. Kaur

引用次数: 13

Biological synthesis of cobalt ferrite nanoparticles 钴铁氧体纳米颗粒的生物合成

Nanotechnology Development Pub Date : 2012-07-11 DOI: 10.4081/ND.2012.E9

A. K. Jha, K. Prasad

引用次数: 17

Synthesis of nanomaterials using expired medicines: an eco-friendly option 使用过期药物合成纳米材料:一个环保的选择

Nanotechnology Development Pub Date : 2012-07-06 DOI: 10.4081/ND.2012.E7

A. K. Jha, K. Prasad

{"title":"Synthesis of nanomaterials using expired medicines: an eco-friendly option","authors":"A. K. Jha, K. Prasad","doi":"10.4081/ND.2012.E7","DOIUrl":"https://doi.org/10.4081/ND.2012.E7","url":null,"abstract":"Expired medicines are a burden to the environment. In this paper, a novel method is suggested to reutilize expired medicines in order to assess the possibilities of synthesizing a variety of nanomaterials. To this end, expired flouroquinolone (norfloxacin) and tinidazole combinations were used to synthesize metal (Au), oxide (ZrO2) and chalcognide (CdS) nanoparticles using for the first time a green chemistry approach. Au, ZrO2 and CdS nanoparticles are available in convenient sizes of 6 nm, 26 nm and 18 nm, respectively, and remain stable for at least six months. This novel procedure is possible thanks to their molecular organization and elements. The inclusion of a fluorine atom in a drug molecule may influence both the disposition of the drug and its interaction with its pharmacological target; for example, the effects of fluorine substitution on the inter- and intra-molecular forces that affect binding of ligands. The presence of sulfur in the tinidazole molecules may also have contributed towards synthesis through proton withdrawal. The nanomaterials synthesized in this way were characterized using X-ray diffraction analysis and transmission electron microscopy to identify the formation of the desired nanoparticles. This single-step green approach is very convenient, simple and can be extended to synthesize a variety of nanomaterials that might find new technological and pharmaceutical applications.","PeriodicalId":184845,"journal":{"name":"Nanotechnology Development","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115724167","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: 5

Iron oxide nanoparticles coated with β-cyclodextrin polluted of Zea mays plantlets β-环糊精包被氧化铁纳米颗粒污染的玉米幼苗

Nanotechnology Development Pub Date : 2012-02-22 DOI: 10.4081/ND.2012.E6

M. Răcuciu

{"title":"Iron oxide nanoparticles coated with β-cyclodextrin polluted of Zea mays plantlets","authors":"M. Răcuciu","doi":"10.4081/ND.2012.E6","DOIUrl":"https://doi.org/10.4081/ND.2012.E6","url":null,"abstract":"The present experimental investigation is focused on the study of assimilatory pigments and nucleic acid levels in young plants intended for agricultural use ( Zea mays ) in presence of water based magnetic fluid added in culture medium. The magnetic fluid was constituted by coating the nanosized magnetic nanoparticles (with 10.55 nm average value of the physical diameter) with β-cyclodextrin (C42H70O35) and further dispersion in water. After germination, various volume fractions (between 10 mL/L and 500 mL/L) of the magnetic fluid was added daily in the culture medium of Zea mays plants still at their early ontogenetic stages. Toxicity symptoms leaded to brown spots covering the leaf surface for the highest magnetic fluid volume fractions used, a putative oxidative stress generated by iron excess treatment. Relatively small volume fraction of magnetic fluid solutions induced the increase of chlorophyll a level (up to 38%), the main photosynthesis pigment, as well that the nucleic acid level (up to 57%) in Zea mays plantlets. All volume fractions of magnetic fluid solutions analyzed may have severe disruptive effects such as the ratio chlorophyll a/chlorophyll b (about 50% decreasing).","PeriodicalId":184845,"journal":{"name":"Nanotechnology Development","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127679173","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: 8

Nanotechnology developments: opportunities for animal health and production 纳米技术的发展:动物健康和生产的机会

Nanotechnology Development Pub Date : 2012-01-30 DOI: 10.4081/ND.2012.E4

A. Manuja, Balvinder Kumar, Raj Kumar Singh

引用次数: 50

Green synthesis of Silver nanoparticles through Calotropis gigantea leaf extracts and evaluation of antibacterial activity against Vibrio alginolyticus 巨角茶叶提取物绿色合成纳米银及其对溶藻弧菌的抑菌活性评价

Nanotechnology Development Pub Date : 2012-01-16 DOI: 10.4081/ND.2012.E3

Vaseeharan Baskaralingam, C. G. Sargunar, Yong-Chin Lin, Jiann-Chu Chen

{"title":"Green synthesis of Silver nanoparticles through Calotropis gigantea leaf extracts and evaluation of antibacterial activity against Vibrio alginolyticus","authors":"Vaseeharan Baskaralingam, C. G. Sargunar, Yong-Chin Lin, Jiann-Chu Chen","doi":"10.4081/ND.2012.E3","DOIUrl":"https://doi.org/10.4081/ND.2012.E3","url":null,"abstract":"Green synthesized silver nanoparticles by Calotropis gigantea leaf extract were used to study the inhibitory activity against pathogenic Vibrio alginolyticus, isolated from wild Artemia franciscana cysts. Silver nanoparticle synthesis was observed using UV-visible spectroscopy and the morphological characteristics were analyzed by atomic force microscope (AFM). In the present study, increasing concentrations of silver nanoparticles synthesized on LB agar plates effectively reduced the number of colonies of V. alginolyticus. A decrease in colonies (CFUs) was observed at 5 mg/mL of silver nanoparticle concentration and the complete inhibition of V. alginolyticus was observed at 20 mg/mL of silver nanoparticle concentration on LB agar plates. In vivo controlling efficiency of silver nanoparticles was tested in an A. franciscana hatching system. Effective control of V. alginolyticus in brine shrimp A. franciscana hatching units was achieved by experimental infection and treatment with silver nanoparticles. Experimental infection studies showed that V. alginolyticus infected Artemia nauplii treated with silver nanoparticles (10 mg/mL) had greater survival (>40%) than silver nanoparticles not treated with nauplii. Based on the findings of this study, it is recommended that low concentrations of green synthesized silver nanoparticles should be further investigated for other potential experimental models to control potential medical pathogens.","PeriodicalId":184845,"journal":{"name":"Nanotechnology Development","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130215799","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: 59

Quantum dots nanoparticle-based lateral flow assay for rapid detection of Mycobacterium species using anti-FprA antibodies 利用抗fpra抗体快速检测分枝杆菌种类的量子点纳米颗粒横向流动试验

Nanotechnology Development Pub Date : 2012-01-04 DOI: 10.4081/ND.2012.E5

F. Cimaglia, A. Aliverti, Maurizio Chiesa, P. Poltronieri, Enrico De Lorenzis, A. Santino, L. Sechi

引用次数: 15

Fast and complete degradation of Congo red under visible light with Er3+ and Nd3+ ions doped TiO2 nanocomposites Er3+和Nd3+离子掺杂TiO2纳米复合材料在可见光下快速完全降解刚果红

Nanotechnology Development Pub Date : 2011-12-15 DOI: 10.4081/ND.2012.E2

H. Narayan, H. Alemu, Daniel N. Alotsi, L. Macheli, Madhavi Thakurdesai, Sandesh V. Jaybhaye, Arvind P. Singh

{"title":"Fast and complete degradation of Congo red under visible light with Er3+ and Nd3+ ions doped TiO2 nanocomposites","authors":"H. Narayan, H. Alemu, Daniel N. Alotsi, L. Macheli, Madhavi Thakurdesai, Sandesh V. Jaybhaye, Arvind P. Singh","doi":"10.4081/ND.2012.E2","DOIUrl":"https://doi.org/10.4081/ND.2012.E2","url":null,"abstract":"We report fast and complete destruction of the dye Congo red (CR) under visible light in the presence of Nd3+ and Er3+ doped TiO2 nanocomposites (NCs). TiO2 NCs with general composition TiO2[R2O3]x, {x=0.1, 0.2; R≡ Nd, Er} and particle size 12-16 nm were synthesized through co-precipitation/hydrolysis (CPH). A set of similar composites was also prepared through solid state reaction (SSR) route, which produced 31- 47 nm particles. After characterization, visible light photocatalytic activity of all the samples was recorded for the degradation of CR. NCs with molar concentration x=0.2 of both doping types produced close to 100% degradation in 180 min. The apparent rate constant (kobs) was found to be 2.91×10–2 min–1 and 2.36×10–2 min–1, for these Nd3+ and Er3+ doped NCs, respectively. The other NCs with x=0.1, also showed significant degradation of CR, but the samples prepared through SSR performed worse. The excellent degradation obtained with the NCs may be attributed to their small particle size. Moreover, the doping of Nd3+ and Er3+ ions further supported the photocatalysis through formation of intermediate energy levels within the band gap of TiO2. These new levels not only acted as electron traps for efficient suppression of the undesired e–/h+ recombination, but also facilitated to a certain extent the absorption of visible irradiation.","PeriodicalId":184845,"journal":{"name":"Nanotechnology Development","volume":"198 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121321449","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