Green Synthesis of Silver Nanoparticles by Using Pomegranate and Their Antimicrobial Activity-A Revolution

The Pomegranate, punica granatum belongs to the family lythraceae is an ancient fruit. The present study has attempted to analyze the work done by different researchers on green synthesis of silver nanoparticles and their characterization by different techniques like UV-Visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM), Tunnling electron microscopy (TEM) and X-ray diffraction method (XRD). The antimicrobial activity were also analyzed in the present paper

Phytoremediation of heavy metals using Brassica juneca-A Review

Remediation of contaminated sites with toxic and heavy metals is particularly a challenging task. Therefore pre-treatment is needed before the discharge of these effluents. Among all method investigated presently, Phytoremediation is found to be an emerging and most innovative tool for removal of environmental contaminants such as heavy metals, trace elements, radioactive compounds and organic compounds from soil or water. It has been proposed as a cost-effective and environmental friendly technique. It involves the use of either naturally occurring metal hyper accumulator plants or genetically engineered plants. Indian mustard known as Brassica juncea is well known hyper accumulator. This paper aims to compile some information about sources of heavy metals and their toxicity. It also reviews deeply about phytoremediation technology, including the heavy metal uptake mechanisms and several case studies associated with Brassica juneca

Potential of Biochar as Cost Effective Adsorbent in Removal of Heavy Metals Ions From Aqueous Phase: A Mini Review

Due to industrialization and increasing population, wastewater treatment has become a big challenge. There are numerous techniques such as ion-exchange, adsorption, membrane filtration, coagulation, flocculation, floating and electrochemical approach developed for the remediation of contaminants from wastewater. But, now it is necessary to develop an approach which should has high efficiency, less expensive and environmental friendly, so that limitation of existing techniques can be overcome. Recent developments of biochar have attracted the researchers into this area. Different methods are discovered to synthesized biochar for the removal of pollutants from wastewater. In this review, biochar are elaborated and critically discussed which have reported for the removal of metallic pollutants present in waste water

Antimicrobial Efficacy of Green Silver Nanoparticles and Potential Implications for Human Health and the Environment

The beginnings of the applications of nanotechnology in the field of health sciences took place in early 2000s. There is a wide range of application of nanoparticles and its uses are emerging rapidly. Nanoparticle synthesis is usually carried out by various physical and chemical methods using various hazardous and toxic chemicals which may have adverse effect in the medical applications. Nevertheless, green synthesis approaches of producing silver nanoparticles are an alternative source of conventional method and is cost effective, environment friendly, easily scaled up for large scale synthesis and in this method there is no need to exploit high pressure, energy, temperature and toxic chemicals as in case of chemical and physical method. In this review, we report, some of the major applications of green synthesis of silver nanoparticles

Silyl - nitrogen compounds: Part (XI)Synthesis of silylated metallahydrazines

863-866Reactions of lithium tris(trimethylsilyl)hydrazine (<b style="mso-bidi-font-weight: normal">1) with ECl3 (E= AI, Fe) and Me2SnCI2 show that (<b style="mso-bidi-font-weight: normal">1) undergoes substitution reaction to give stable silylated metallahydrazines, (Me3Si)2N-N(SiMe3)AICI2 and (Me3Si)2N-N (SiMe3)2 SnC1(Me2), whereas, FeCI3 acts as an oxidant to give Me3SiN=NSiMe3 . However, EX4 (E = Sn, Ti and X= CI, I) and SbCI5 provide disubstituted products [(Me3Si)2N-N(SiMe3)2EXn-2. SnCI2, gives a two coordinated Sn(II) derivative Sn[(Me3Si) 3N2] 2

Silyl-nitrogen compounds: Part VI-Reactions of lithium tris (trimethylsilyl)hydrazine with non- metallic halides

626-630Lithium tris (trimethylsilyl) hydrazine (Me3Si)2N-N(SiMe3)Li (1) reacts with non-metallic halides EXn to form bis tris (trimethylsilyl)hydrazino in derivatives [(Me3Si)3N2]2EXn-2 where E=B, X=F. n=3; E=C, X=Br, n=4; E=Si, X=CI, n=4 and E=P, X=CI, n=5. Non-metallic monohydrazino derivatives (Me3Si)3 N2EXn-l are formed in cases of BF3, Me2SiCb, PCb, PBr3, AsCl3 and Et2NAsCl2

Influencing users for paper recycling using an E-commerce website

Currently, the most used promotional strategy for paper recycling includes Mail, Ads, Posters, Articles, etc. We are taking an E-commerce website that will be built upon the ideology of recycling as a candidate for being the best tool for the promotion of paper recycling among this generation among its potential impact on carbon footprint reduction. In this paper we will be comparing various statistics regarding the trends of searches and the current state of recycling in different regions of our country. We will also conduct a survey among colleagues for their habits and their current contributions. We will also be comparing different literature related to our topic. We have found that there is significant potential for a website and it has many supportive statistics with it. An E-commerce website with modern retention techniques can also bring awareness to the young masses in this cause. Big tech companies are currently competing with each other using computer science for the attention of the masses. Bringing this attention to the current most important scenarios can be so much impactful

Silyl-nitrogen compounds: Part XII - Mode of addition reactions in trisila-phospha-triazene

232-235Tris(trimethylsilyl)-2-phospha-1-triazene (Me3Si)2N-P=N(SiMe3) (1) reacts with alkyllithium RLi (R = Me, Bu) to form an intermediate amide at low temperature, which rearranges into phosphoranide at room temperature. The intermediate amide reacts with Me3SnCl to form phosphine, (Me3Si)2N-P (R)- N(SiMe3)(SnMe3) which rearranges slowly at room temperature to form phosphorane (Me3Si)2N-P (R)(SnMe3)(= N(SiMe3) . However, a similar silyl derivative (Me3Si)2N-P (R)- N(SiMe3) is stable at room temperature and does not migrate intramolecularly into phosphorane

Assessment of Phytoremediation Potential of Chara vulgaris to Treat Toxic Pollutants of Textile Effluent

Textile effluent released into water bodies is prone to be toxic for aquatic flora and fauna. In the present study, the phytoremediation potential of Chara vulgaris (C. vulgaris) is investigated for treatment of textile effluent. The highly concentrated and toxic textile effluent is diluted to different concentrations 10%, 25%, 50%, and 75% to check the accessibility of macroalgae to bear pollutant load of textile effluent. The toxicity of textile effluent is analysed by determining different water quality parameters, namely, pH, TDS, BOD, COD, and EC. The maximum reductions in TDS (68%), COD (78%), BOD (82%), and EC (86%) were found in the 10% concentrated textile effluent after 120 h of treatment. The highly concentrated textile effluent showed its toxic effect on macroalgae and it was found unable to show a remarkable change in water quality parameters of 75% and 100% textile effluent. The correlation coefficient values are determined using correlation matrix to identify the high correlation between different water quality parameters. The removal of toxic organic pollutants by C. vulgaris was confirmed by using UV-visible absorption spectra. Typical X-ray spectra recorded using EDXRF technique indicated the presence of heavy metals Cd in the dried sample of macroalgae after treatment which show its capability to remove toxic heavy metals from textile effluent. The reliability model has been proposed for treated textile effluents to identify percentage level of toxicity tolerance of waste water by macroalgae