Advanced Nano Research 2020-07-19T18:43:59+00:00 Adv. Nano Research [AIJR] Open Journal Systems <p align="justify"><a title="Click for Journal homepage" href="" target="_blank" rel="noopener"><img style="float: right; padding-left: 15px; padding-right: 5px;" src="/public/site/images/aabahishti/ANR_Cover_Page.jpg" alt="ANR"></a> Advanced Nano Research (ANR) is a peer-reviewed, international and interdisciplinary open access research journal published by AIJR publisher (India). <em>Adv. Nan. Res.</em> focuses on all aspects of nanoscience and nanotechnology. This Journal will cover all interesting areas of nano research from basic aspects of nanoscience and nanoscale materials to practical applications of such materials.<br>Advanced Nano Research is registered with CrossRef with doi: 10.21467/anr having&nbsp;ISSN:&nbsp;2581-5164 [online].</p> Green Synthesis of Silver Nanoparticles Using Waste Tea Leaves 2020-07-19T18:43:59+00:00 Darshana Rajput Samrat Paul Annika Gupta <p>Green synthesis of silver nanoparticles has gained momentum since the demand to synthesize nanoparticles in an eco-friendly way has increased significantly. Here we report, economic and cost-effective biosynthesis of silver nanoparticles using waste of tea leaves (<em>Camellia sinensis</em>). The aim of the study was to biosynthesize silver nanoparticles and to assess its potential applications such as antibacterial activity, plant growth induction and dye degradation. Standardization studies were done using UV- Spectroscopy to determine the optimum synthesis condition for synthesis of silver nanoparticles. The optimum conditions were found to be pH 6.0, ambient temperature condition and 5mM AgNO<sub>3</sub> concentration. Characterization studies using UV-Visible Spectroscopy, TEM and AFM analysis show nanoscale range of the particles. The silver nanoparticles showed maximum antibacterial activity against <em>K. pneumonia</em> followed by <em>E. coli</em> and minimum activity against <em>C. diptheriae</em>. The nanoparticles showed significant effect on the growth of <em>Vigna radiata</em> seeds at 50% concentration of nanoparticles. The particles immobilized on cotton cloth showed antibacterial activity against Gram positive organisms. Dye degradation studies showed that the nanoparticles are able to degrade phenol red and blue textile dye effectively.</p> 2020-07-05T00:00:00+00:00 Copyright (c) 2020 Darshana Rajput, Samrat Paul, Annika Gupta Green Synthesis of Zinc Oxide Nanoparticles via Algal Route and its Action on Cancerous Cells and Pathogenic Microbes 2020-07-19T18:43:59+00:00 Priyankari Bhattacharya Kasturi Chatterjee Snehasikta Swarnakar Sathi Banerjee <p>Application of metal oxide nanoparticles for treatment of melanoma cells and microbes is being investigated. Zinc oxide nanoparticles (ZnO NPs) deserve special mention where particles cause destruction of melanoma cells with minimal damage to healthy cells. In the present study, pure phase ZnO NPs with particle size of 3.1 nm were synthesized by green route using algal extract. Skin melanoma (B16F10) cells were treated with synthesized ZnO NP and compared with commercial ZnO NPs and analysed for ED50 for cellular viability using 3% (w/v) of the doses. Sensitivity of B16F10 cells towards green synthesized ZnO NP was found to be more than commercial ZnO NPs. Results showed greater reduction in viability of cells exposed to green synthesized ZnO NPs and with increasing dose of the ZnO NPs, percentage viability of cells gradually reduced. 50% decrease in cellular viability (ED50) was obtained for green synthesized ZnO NP at 3% dose while commercial ZnO exhibited ED50 at 6% of doses. The ZnO NP also showed antimicrobial activity against <em>Pseudomonas</em> sp. and <em>Staphylococcus</em> sp. Zone of inhibition (ZOI) exhibited by <em>Pseudomonas aeruginosa</em> and <em>Staphylococcus aureus</em> for disc diffusion and well diffusion assay was around 10-22 mm and 9-12mm respectively.</p> 2020-07-05T00:00:00+00:00 Copyright (c) 2020 Priyankari Bhattacharya, Kasturi Chatterjee, Snehasikta Swarnakar, Sathi Banerjee