01741nas a2200217 4500008004100000022001400041245007600055210006900131260007400200300000800274490000700282520099000289653002001279653001001299653002201309100002101331700002201352700002001374700002101394856010801415 2012 eng d a1388-076400aLatex-mediated synthesis of ZnS nanoparticles: green synthesis approach0 aLatexmediated synthesis of ZnS nanoparticles green synthesis app aVAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDSbSPRINGERcMAY a8650 v143 a

A low-cost, green synthesis of ZnS nanoparticles is reported using 0.3 % latex solution prepared from Jatropha curcas L. ZnS nanoparticles were characterized by X-ray diffraction, selected area electron diffraction, transmission electron microscopy, energy dispersive analysis of X-rays, UV-vis optical absorption and photoluminescence techniques. Fourier Transform Infrared Spectroscopy was performed to find the role of cyclic peptides namely curcacycline A (an octapeptide), curcacycline B (a nonapeptide) and curcain (an enzyme) as a possible reducing and stabilizing agents present in the latex of J. curcas L. The average size of ZnS nanoparticles was found to be 10 nm. Latex of J. curcas L. itself acts as a source of sulphide (S-2) ions that are donated to Zn ions under present experimental conditions. Source of sulphide (S-2) ions is still unclear, but we speculate that cysteine or thiol residues present in enzyme curcain may be donating these sulphide (S-2) ions.

10agreen synthesis10aLatex10aZnS nanoparticles1 aHudlikar, Manish1 aJoglekar, Shriram1 aDhaygude, Mayur1 aKodam, Kisan, M. uhttp://library.ncl.res.in/content/latex-mediated-synthesis-zns-nanoparticles-green-synthesis-approach-002820nas a2200265 4500008004100000022001400041245014400055210006900199260007300268300001200341490000700353520184300360653001302203653000902216653002002225653001802245653001802263100002802281700002002309700002302329700001802352700002702370700003002397856012702427 2016 eng d a0928-493100aAmelioration of excision wounds by topical application of green synthesized, formulated silver and gold nanoparticles in albino Wistar rats0 aAmelioration of excision wounds by topical application of green  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcMAY a293-3000 v623 a

Wound healing, a complex biological process, has attained a lot of attention as dermatologists are primarily interested in stimulated wound closure without formation of scar or a faint scar. The recent upsurgence of nanotechnology has provided novel therapeutic materials in the form of silver and gold nanoparticles which accelerate the wound healing process. The effect of formulated nanoparticles using Coleus forskohlii root extract (green synthesized) has been tried out for ameliorating full thickness excision wounds in albino Wistar male rats. The evaluation of in vivo activity of nanoparticles in wound healing was carried out on open wounds made by excision on the dorsal sides of albino Wistar rats under anesthesia, and the healing of the wounds was assessed. Histological aspects of the healing process were studied by a HE (Hematoxylin and Eosin) staining method to assess various degrees of re-epithelialization and the linear alignment of the granulation tissue whereas Van Gieson's histochemical staining was performed to observe collagen fibers. The healing action shown by the formulated nanoparticles was remarkable during the early stages of wound healing, which resulted in the substantial reduction of the whole healing period. Topical application of formulated gold nanoparticles was found to be more effective in suppressing inflammation and stimulating re-epithelialization compared to silver nanoparticles during the healing process. The results throw light on the amelioration of excision wounds using nanoparticles which could be a novel therapeutic way of improving wound healing in clinical practice. The mechanism of advanced healing action of both types of nanoparticles could be due to their antimicrobial, antioxidant and anti-inflammatory properties. (C) 2016 Elsevier B.V. All rights reserved.

10acollagen10aGold10agreen synthesis10aNanopraticles10awound Healing1 aNaraginti, Saraschandra1 aKumari, Lakshmi1 aDas, Raunak, Kumar1 aSivakumar, A.1 aPatil, Sagar, Hindurao1 aAndhalkar, Vaibhav, Vilas uhttp://library.ncl.res.in/content/amelioration-excision-wounds-topical-application-green-synthesized-formulated-silver-and02177nas a2200229 4500008004100000022001400041245016100055210006900216260009200285300001200377490000700389520125400396653002201650653002001672653002301692653002601715100001801741700002001759700002401779700002101803856012301824 2016 eng d a1936-661200aEffect of different temperature on structural, magnetic and dielectric properties of strontium hexaferrite powder synthesised using aloe vera plant extracts0 aEffect of different temperature on structural magnetic and diele a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScAPR a869-8750 v223 a

M-type SrFe12O19 hexaferrite particles synthesized using the aloe vera plant extract. Biological materials of microorganisms, plants, enzymes have been suggested as an ecological alternative for conventional reagents in physical and chemical methods. In present paper we report effect of temperature on structural, morphology, magnetic and dielectric properties of M-type SrFe12O19 particles synthesised by Green synthesis technique using Aloe vera plant extract. The metal nitrates (Sr and Fe) were dissolved in aloe vera extract solution and then mixture was kept in oil bath at 100 degrees C till it become dry. The obtain dried powder calcined in a wide temperature range, from 450 degrees C to 1150 degrees C for 4 hours in a static air atmosphere. The calcined powders were characterised using various instrumental techniques like Fourier transform infrared spectroscopy (FTIR) X-ray diffractometry (XRD), Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), Vibrating Sample Magnetometry (VSM), and dielectric measurements. XRD, FTIR, SEM, Magnetic and dielectric measurements were carried out at room temperature. XRD analysis confirms the formation of mono phase of strontium hexaferrite at 1150 degrees C.

10aAloe Vera Extract10agreen synthesis10aM-Type Hexaferrite10aStrontium Hexaferrite1 aSolanki, Neha1 aJotania, R., B.1 aKhomane, Ramdas, B.1 aKulkarni, B., D. uhttp://library.ncl.res.in/content/effect-different-temperature-structural-magnetic-and-dielectric-properties-strontium01857nas a2200241 4500008004100000022001400041245012900055210006900184260009200253300001000345490000700355520092100362653002001283653002301303653002801326653002501354100001701379700002301396700001901419700002101438700002501459856013101484 2016 eng d a1745-808000aGreen synthesis of silver nanoparticles from purple acid phosphatase apoenzyme isolated from a new source limonia acidissima0 aGreen synthesis of silver nanoparticles from purple acid phospha a4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLANDbTAYLOR & FRANCIS LTDcJAN a28-370 v113 a

Green synthesis of nanoparticles is regarded as a safe and non-toxic process whereas conventional synthesis using chemical methods produces toxic substance. This study provides a novel insight for enzymatic synthesis method of silver nanoparticles using purple acid phosphatase, isolated from Limonia acidissima (wood apple) as a new source and used in the synthesis of silver nanoparticles. Stable silver nanoparticles were produced by sonochemical method using apoenzyme as a stabilising and capping agent and were characterised by various physicochemical techniques like UV-Visible spectroscopy, Fourier-transform infrared, X-ray diffraction and transmission electron microscopy. X-ray study shows that nanoparticles are composed of silver and silver oxide. The synthesised nanoparticles exhibited excellent antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa and Staphylococcus aureus.

10agreen synthesis10aLimonia acidissima10apurple acid phosphatase10asilver nanoparticles1 aPawar, Omkar1 aDeshpande, Neelima1 aDagade, Sharda1 aWaghmode, Shobha1 aJoshi, Preeti, Nigam uhttp://library.ncl.res.in/content/green-synthesis-silver-nanoparticles-purple-acid-phosphatase-apoenzyme-isolated-new-source-003092nas a2200301 4500008004100000022001400041245012800055210006900183260009900252300001200351490000800363520198800371653002802359653001302387653002002400653001502420653003402435100002002469700002202489700002302511700002002534700002402554700002002578700002202598700001802620700002302638856012902661 2016 eng d a0144-861700aProton play in the formation of low molecular weight chitosan (LWCS) by hydrolyzing chitosan with a carbon based solid acid0 aProton play in the formation of low molecular weight chitosan LW aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLANDbELSEVIER SCI LTDcOCT a417-4250 v1513 a

Low molecular weight chitosan (LWCS) constitute a special class of value added chemicals that are primarily obtained from crustacean shells, which are the main water pollutants from crabs and shrimp processing centers. Unlike chitin and chitosan, LWCS possess improved solubility in water and aqueous solutions, making them widely applicable in numerous fields ranging from drug delivery to waste water treatment. Among the methods employed for their production, chemical breakdown by strong liquid acids has yielded good success. However, this method is met with severe concerns arising from the harsh nature of liquid acids, which may corrode the reactors for commercial synthesis, and their limited reusability. The physical methods like ultrasound and microwave are energy intensive in nature, while the enzymatic methods are expensive and offers limited scope for reuse. We have attempted to overcome these problems by employing carbon based solid acid (CSA) for hydrolyzing chitosan to LWCS. CSA can be easily produced using activated carbon, a cost-effective and easily available raw material. Reactions were carried out between chitosan and CSA in a hydrothermal glass reactor and the products, separated by cold centrifugation, were purified and dried. The dried products were characterized for their molecular weight and solubility. Results indicated more than ten-fold decrease in the molecular weight of chitosan and the product exhibited water solubility. The CSA could be used upto four times, without regeneration, to give a consistent quality product. The aqueous solution of resulting LWCS exhibited a pH of 6.03 +/- 0.11, as against the acidic pH range of solutions of commercially available LWCS, indicating its suitability for biomedical applications. Our investigation facilitates a `green approach' that may be employed for commercial production of value added chemicals from waste products of marine industry. (C) 2016 Elsevier Ltd. All rights reserved.

10aCarbon based solid acid10aChitosan10agreen synthesis10aHydrolysis10aLow molecular weight chitosan1 aKrishnan, Akhil1 aDeshmukh, Pranjal1 aAgarwal, Siddharth1 aPurohit, Poorvi1 aDhoble, Deepa, Arun1 aWaske, Prashant1 aKhandekar, Dileep1 aJain, Ratnesh1 aDandekar, Prajakta uhttp://library.ncl.res.in/content/proton-play-formation-low-molecular-weight-chitosan-lwcs-hydrolyzing-chitosan-carbon-based01999nas a2200241 4500008004100000022001400041245012900055210006900184260000800253300001200261490000600273520114800279653002301427653002501450653002001475653001501495653001501510100002501525700002401550700002201574700003001596856013101626 2017 eng d a2169-432X00aSynthesis of copper nanoparticles in presence of surfactants and evaluation of heat transfer performance of copper nanofluid0 aSynthesis of copper nanoparticles in presence of surfactants and cAPR a334-3420 v63 a

Copper nanoparticles were synthesized by reduction of copper nitrate hexahydrate using glucose as a green reducing agent. Effect of various synthesis parameters such as the amount of reducing agent, type of surfactant, the concentration of surfactant on particle size and morphology has been studied. Particles thus synthesized were characterized using analytical tools like X-ray Diffraction (XRD), Dynamic Light Scattering (DLS) and Scanning Electron Microscopy (SEM). XRD results show copper peaks at 2 angles 43.34, 50.48 and 74.19° corresponding to the planes (111), (200) and (220) respectively and possessing FCC (Face Centred Cubic) crystal lattice and polydispersed particles with crystallite size ranging from 43 to 103 nm. Further Cu nanoparticles were dispersed in water to prepare nanofluid and heat transfer properties such as heat transfer coefficient, viscosity and density were evaluated. Nanofluid models proposed elsewhere were also used for theoretical property evaluations. Nearly 100% increase in heat transfer coefficient was observed at 1% (by volume) particle concentration of copper nanoparticles in water.

10aChemical Reduction10aCopper nanoparticles10agreen synthesis10aNanofluids10asurfactant1 aKapadnis, Chetan, V.1 aGundeli, Kartik, P.1 aSaini, Daulat, R.1 aBhatkhande, Dhananjay, S. uhttp://library.ncl.res.in/content/synthesis-copper-nanoparticles-presence-surfactants-and-evaluation-heat-transfer-performance01852nas a2200229 4500008004100000022001400041245010500055210006900160260000800229300001200237490000700249520105300256653001601309653003501325653002901360653002001389653002201409100002501431700002201456700002101478856012301499 2018 eng d a1066-785700aSynthesis of ecofriendly fluorescent carbon dots and their biomedical and environmental applications0 aSynthesis of ecofriendly fluorescent carbon dots and their biome cJAN a672-6800 v333 a

Green Synthesis of nanoparticles is an emerging field with enormous advantages over conventional synthesis methods. Herein we have reported a green method for the preparation of water soluble polydisperse carbon dots (c-dots) from Cocos nucifera frond pinnae by a modified version of the `single step hydrothermal carbonization'. C-dots having blue emission were obtained with this method and we further evaluated the effect of metal ions interactions on c-dots, as a sharp decrease in photoluminescence was observed. The synthesized c-dots were found bioactive against B.subtilis, M. smegmatis and S. aureus as determined by the well diffusion assay. We also explored nanotheranostic applications of c-dots as biosensor matrix in DNA hybridization sensor for pancreatic cancer and in bioimaging of cancer cells. This study demonstrated that c-dots can be explored for numerous biomedical and environmental applications in a variety of fields owing to the cost effective synthesis, biocompatibility and excellent physico-chemical properties.

10aCarbon dots10adifferential pulse voltammetry10aDNA hybridization sensor10agreen synthesis10aPancreatic Cancer1 aJoshi, Preeti, Nigam1 aMathias, Anjelica1 aMishra, Abhishek uhttp://library.ncl.res.in/content/synthesis-ecofriendly-fluorescent-carbon-dots-and-their-biomedical-and-environmental01520nas a2200217 4500008004100000245013400041210006900175260000800244300001100252490000700263520073000270653002001000653002001020653001701040653002801057653001701085653001601102100002301118700003001141856013101171 2021 eng d00aCatalytic applications of hydrotalcite and related materials in multi -component reactions: concepts, challenges and future scope0 aCatalytic applications of hydrotalcite and related materials in  cSEP a1004580 v223 aHydrotalcites (HTs) are the potential substitute to conventional base catalysts. HTs are useful in efficient syntheses of various heterocycles, such as chromenes, pyrans, pyrazoles, triazoles, using multi-component reactions. This review focuses on the chemistry of HTs and particularly hydrotalcites and related materials in the synthesis of heterocycles. The effects of preparation method and, physico-chemical parameters, such as calcination, molar ratio of metals, role of intercalated ions, surface area, on the catalytic activities are discussed. Along with technical aspects, this review also unlocks various untouched areas in developing sustainable catalyst for syntheses of heterocycles, drugs, etc. for the future.10agreen chemistry10agreen synthesis10aheterocycles10aheterogeneous catalysis10ahydrotalcite10aMetal Oxide1 aBurange, Anand, S.1 aGopinath, Chinnakonda, S. uhttp://library.ncl.res.in/content/catalytic-applications-hydrotalcite-and-related-materials-multi-component-reactions-concepts02944nas a2200265 4500008004100000022001400041245013300055210006900188260001200257300001200269490000700281520196100288653002302249653004802272653002002320653002902340653002802369653002202397100002802419700002702447700002502474700003102499700002802530856012002558 2022 eng d a0973-129600aGreen synthesis-mediated iron oxide nanoparticles using sphagneticola trilobata (L.) for antibacterial and anticancer assessment0 aGreen synthesismediated iron oxide nanoparticles using sphagneti cOCT-DEC a953-9610 v183 a

Background: Green chemistry is widely accepted phenomenon to synthesize iron oxide nanoparticles (Fe-NPs) used in several biomedical and technological applications. Metal oxide nanoparticles are useful in biomedical, clearing environmental pollutants, enzyme immobilization, etc., Objectives: The synthesis of Fe-NPs using Sphagneticola trilobata leaf extract using ferric chloride solution and its biological assessment. Materials and Methods: The present study involved the synthesis of Fe-NPs using S. trilobata leaf extract using ferric chloride solution by the co-precipitation method. The synthesized nanoparticles were characterized for Fourier-transform infrared spectroscopy, scanning electron microscopy, powder X-ray diffraction spectroscopy, particle size analysis, and magnetization studies. The nanoparticles were biologically evaluated for microbiological, antioxidant, and in vitro cytotoxicity activity. Results: Magnetic nanoparticles were appeared in dark brown color. The change in color might result due to the presence of polyphenols in S. trilobata leaf extract. The characterization studies confirmed morphology, shape, and size of the nanoparticles. The mean diameter of Fe-NPs and S. trilobata-Fe-NPs was found to be 42.2 +/- 2.6 and 62.54 +/- 2.01 nm, respectively. Magnetization studies of nanoparticles revealed ferromagnetic behavior with the saturation magnetization at 57 emugm(-1). S. trilobata-Fe-NPs showed significant antibacterial action against Staphylococcus aureus and Bacillus subtilis by the well-diffusion method. Antioxidant activity of S. trilobata-Fe-NPs exhibited 65.78% inhibition in comparison with ascorbic acid. The cytotoxicity assay of S. trilobata-Fe-NPs on HCT-15 colon adenocarcinoma cells showed significant anticancer activity (56.44%) cytotoxic inhibition. Conclusion: Green synthesis-mediated S. trilobata-Fe-NPs appeared to produce significant antimicrobial and anticancer potential.

10aElemental analysis10afield emission scanning electron microscopy10agreen synthesis10airon oxide nanoparticles10aSphagneticola trilobata10aX-ray diffraction1 aDhavale, Rakesh, Pandit1 aPatil, Swapnil, Sanjay1 aJadhav, Sagar, Ujwal1 aDhavale, Rushikesh, Pandit1 aAgawane, Sachin, Bharat uhttp://library.ncl.res.in/content/green-synthesis-mediated-iron-oxide-nanoparticles-using-sphagneticola-trilobata-l02269nas a2200253 4500008004100000022001400041245017900055210006900234260000800303300001500311490000600326520131200332653004101644653002001685653001801705653001901723653000801742100002601750700002701776700002701803700002701830700002801857856013001885 2023 eng d a2365-654900aSelective one pot multicomponent green synthesis of 3-[(aryl)(arylthio)methyl]-1H-indole derivatives utilizing enhanced Lewis acidic sites of Surfactant-assisted ZnO catalyst0 aSelective one pot multicomponent green synthesis of 3arylarylthi cMAY ae2023007360 v83 a

Five different ZnO nanocrystallites (ZnO-1 to ZnO-5) were successfully synthesized by a surfactant-assisted hydrothermal technique using various surfactants. All the ZnO nanocrystallites are thoroughly characterized by XRD, IR, UV-DRS spectroscopy and FESEM-EDS analysis. Among the synthesized ZnO nanocrystallites, the CTAB-assisted synthesized ZnO-4 exhibited a fine disc-like morphology with a minimum crystallite size (23 nm). Subsequent to reaction optimization studies, the ZnO-4 is utilized as an efficient catalyst for one pot-three component green synthesis of 3-[(aryl)(arylthio)methyl]-1H-indoles (4a-4p) via. condensation of a variety of indoles, aromatic aldehydes and aromatic thiols at room temperature in water. The single-crystal X-ray structure of 3-[(phenyl)(phenylthio)methyl]-1H-indole (4a) is also been reported (CCDC 2170437). The Lewis acidic property of the catalyst-supported probable mechanism is well proposed subsequent to pyridine-IR studies of the ZnO catalysts. Indeed, CTAB-assisted synthesized ZnO-4 was found to be most effective and selective Lewis acid catalyst for the synthesis of a variety of 3-[(aryl)(arylthio)methyl]-1H-indole derivatives in water at ambient temperature with merits like higher yields, lower reaction time, catalyst recovery and reuse.

10a3-[(aryl)(arylthio)methyl]-1H-indole10agreen synthesis10aLewis acidity10aSingle crystal10aZnO1 aSangale, Vijay, B. B.1 aJagtap, Rohidas, M. M.1 aMali, Bhupendra, P. P.1 aGonnade, Rajesh, G. G.1 aPardeshi, Satish, K. K. uhttp://library.ncl.res.in/content/selective-one-pot-multicomponent-green-synthesis-3-arylarylthiomethyl-1h-indole-derivatives