02139nas a2200229   4500008004100000022001400041245015600055210006900211260009200280300001400372490000600386520124100392653001701633653001801650653001901668653002101687100002501708700001401733700001701747700001501764856013001779       2005                        eng d  a1533-488000aBiosynthesis of gold and silver nanoparticles using emblica officinalis fruit extract, their phase transfer and transmetallation in an organic solution0 aBiosynthesis of gold and silver nanoparticles using emblica offi  a26650 THE OLD RD, STE 208, VALENCIA, CA 91381-0751 USAbAMER SCIENTIFIC PUBLISHERScOCT  a1665-16710 v53 a<p>The design, synthesis and characterization of biologically synthesized nanomaterials have become an area of significant interest. In this paper, we report the extracellular synthesis of gold and silver nanoparticles using Emblica Officinalis (amla, Indian Gooseberry) fruit extract as the reducing agent to synthesize Ag and Au nanoparticles, their subsequent phase transfer to an organic solution and the transmetallation reaction of hydrophobized silver nanoparticles with hydrophobized chloroaurate ions. On treating aqueous silver sulfate and chloroauric acid solutions with Emblica Officinalis fruit extract, rapid reduction of the silver and chloroaurate ions is observed leading to the formation of highly stable silver and gold nanoparticles in solution. Transmission Electron Microscopy analysis of the silver and gold nanoparticles indicated that they ranged in size from 10 to 20 nm and 15 to 25 nm respectively. Ag and Au nanoparticles thus synthesized were then phase transferred into an organic solution using a cationic surfactant octadecylamine. Transmetallation reaction between hydrophobized silver nanoparticles and hydrophobized chloroaurate ions in chloroform resulted in the formation of gold nanoparticles.</p>10aBiosynthesis10aNanomaterials10aPhase transfer10aTransmetallation1 aAnkamwar, Balaprasad1 aDamle, C.1 aAhmad, Absar1 aSastry, M.  uhttps://library.ncl.res.in/content/biosynthesis-gold-and-silver-nanoparticles-using-emblica-officinalis-fruit-extract-their-000799nas a2200241   4500008004100000022001400041245007100055210006900126260007700195300001200272490000600284653001100290653001700301653001500318653001200333653001800345100001700363700001700380700002600397700001500423700001400438856010500452       2005                        eng d  a1613-681000aExtracellular biosynthesis of bimetallic Au-Ag alloy nanoparticles0 aExtracellular biosynthesis of bimetallic AuAg alloy nanoparticle  aPO BOX 10 11 61, D-69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcMAY  a517-5200 v110aalloys10aBiosynthesis10acomposites10aenzymes10aNanoparticles1 aSenapati, S.1 aAhmad, Absar1 aKhan, Mohammad, Islam1 aSastry, M.1 aKumar, R.  uhttps://library.ncl.res.in/content/extracellular-biosynthesis-bimetallic-au-ag-alloy-nanoparticles-002201nas a2200265   4500008004100000022001400041245010700055210006900162260009500231300001000326490000600336520126700342653001701609653001201626653001101638653000901649653002301658653001801681100001701699700002501716700002601741700001701767700001901784856013201803       2005                        eng d  a1550-703300aExtra-/intracellular biosynthesis of gold nanoparticles by an alkalotolerant fungus, trichothecium sp.0 aExtraintracellular biosynthesis of gold nanoparticles by an alka  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScMAR  a47-530 v13 a<p>The development of reliable, eco-friendly processes for the synthesis of nanoscale materials is an important aspect of nanotechnology. As part of our ongoing investigation into the use of fungi for nanoparticle synthesis, we report herein that depending on the reaction conditions of the fungus Trichothecium sp. with aqueous gold ions, gold nanoparticle synthesis can be controlled to occur either within the biomass or extracellularly. Moreover, we have found that reaction of gold ions with the Trichothecium sp. fungal biomass under stationary conditions results in the rapid extracellular formation of gold nanoparticles of spherical, rod-like and triangular morphology whereas reaction of the biomass under shaking conditions resulted in intracellular growth of the nanoparticles. It is believed that on changing the reaction conditions of the fungus with gold ions, the enzymes and proteins which are being released into the medium under stationary conditions do not get released under shaking conditions resulting in the formation of extracellular or intracellular gold nanoparticles respectively. The gold nanoparticles are not toxic to the cells and the cells continued to grow after the biosynthesis of the gold nanoparticles in both the cases.</p>10aBiosynthesis10aenzymes10aFungus10aGold10aMorphology Control10aNanoparticles1 aAhmad, Absar1 aSenapati, Satyajyoti1 aKhan, Mohammad, Islam1 aKumar, Rajiv1 aSastry, Murali  uhttps://library.ncl.res.in/content/extra-intracellular-biosynthesis-gold-nanoparticles-alkalotolerant-fungus-trichothecium-sp-002039nas a2200217   4500008004100000022001400041245011900055210006900174260008600243300001000329490000700339520121600346653001701562653002301579653001801602653001801620100002501638700001701663700001401680856012701694       2005                        eng d  a1553-317400aGold nanotriangles biologically synthesized using tamarind leaf extract and potential application in vapor sensing0 aGold nanotriangles biologically synthesized using tamarind leaf   a325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USAbTAYLOR & FRANCIS INCcFEB  a19-260 v353 a<p>The size and shape dependent electronic and chemical properties of metal nanoparticles has drawn the attention of chemists, physicists, biologists, and engineers who wish to use them for the development of new generation nanodevices. In this article, we report the synthesis of gold nanotriangles using tamarind leaf extract as the reducing agent. On treating aqueous chloroauric acid solution with tamarind leaf extract, rapid reduction of the chloroaurate ions is observed leading to the formation of flat and thin single crystalline gold nanotriangles. Atomic force microscopy analysis of the gold nanotriangles indicated that they ranged in thickness from 20 to 40 nm. These gold nanotriangles with unique and highly anisotropic planer shapes might find application in photonics, optoelectronics, and optical sensing. We investigated the effect of different organic solvent vapors like methanol, benzene and acetone on the conductivity of tamarind leaf extract reduced gold nanotriangles. I-V characteristics measurement of these nanotriangles was done in presence of these organic solvent vapors. The observed characteristics suggest the application of gold nanotriangles to future chemical sensors.</p>10aBiosynthesis10agold nanotriangles10atamarind leaf10avapor sensing1 aAnkamwar, Balaprasad1 aChaudhary, M1 aSastry, M  uhttps://library.ncl.res.in/content/gold-nanotriangles-biologically-synthesized-using-tamarind-leaf-extract-and-potential-001831nas a2200229   4500008004100000022001400041245006500055210006500120260009500185300001400280490000600294520104900300653001701349653001701366653002301383100002101406700002101427700001401448700002101462700001901483856009901502       2007                        eng d  a1533-488000aBacterial enzyme mediated biosynthesis of gold nanoparticles0 aBacterial enzyme mediated biosynthesis of gold nanoparticles  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScDEC  a4369-43770 v73 a<p>Development of synthesis methods for anisotropic metal nanoparticles is of considerable interest due to their remarkable optoelectronic properties. Various shapes ranging from rods to cubes to tetrapods and prisms may be obtained by chemical methods. Here we show that anisotropic gold nanoparticles can be synthesized biologically by the bacterium Actinobacter spp. when challenged with gold chloride in the presence of Bovine serum albumin (BSA). We also observed that synthesis of gold nanoparticles occur with simultaneous induction of the protease enzyme secreted by the bacterium in the presence of BSA. The presence of BSA helps to enhance the rate of gold nanoparticles biosynthesis and may also impart some shape control. Controlling simple experimental conditions like incubation temperature and presence or absence of oxygen have drastic effect on the reaction rate and the morphology of the particles. Various assay experiments show that the presence of enzyme protease can act as a reducing as well as shape directing agent.</p>10aBiosynthesis10abovine serum10agold nanoparticles1 aBharde, Atul, A.1 aKulkarni, Aarohi1 aRao, Mala1 aPrabhune, Asmita1 aSastry, Murali  uhttps://library.ncl.res.in/content/bacterial-enzyme-mediated-biosynthesis-gold-nanoparticles-002718nas a2200265   4500008004100000022001400041245018300055210006900238260007700307300001400384490000600398520169400404653001702098653001902115653001802134653002402152653001102176100002302187700001802210700003002228700002302258700001902281700002402300856012802324       2008                        eng d  a1439-422700aExtracellular synthesis of crystalline silver nanoparticles and molecular evidence of silver resistance from morganella sp.: towards understanding biochemical synthesis mechanism0 aExtracellular synthesis of crystalline silver nanoparticles and   aPO BOX 10 11 61, D-69451 WEINHEIM, GERMANYbWILEY-V C H VERLAG GMBHcJUN  a1415-14220 v93 a<p>There has been significant progress in the biological synthesis of nanomaterials. However, the molecular mechanism of synthesis of such bio-nanomaterials remains largely unknown. Here, we report the extracellular synthesis of crystalline silver nanoparticles (AgNPs) by using Morganella sp., and show molecular evidence I of silver resistance by elucidating the synthesis mechanism. The AgNPs were 20 +/- 5 nm in diameter and were highly stable at 1 room temperature. The kinetics of AgNPs formation was investigated. Detectable particles were formed after on hour of reaction, and their production remained exponential up to 18 h, and saturated at 24 h. Morganella sp. was found to be highly resistant to silver cations and was able to grow in the presence of more than 0.5 mm AgNO3. Three gene homologues viz. silE, silP and silS were identified in silver-resistant Morganella sp. The homologue of silE from Morganella sp. showed 99% nucleotide sequence similarity with the previously reported gene, silE, which encodes a periplasmic silver-binding protein. The homologues of silP and silS were also highly similar to previously reported sequences. Similar activity was totally absent in closely related Escherichia coli; this suggests that a unique mechanism of extracellular AgNPs synthesis is associated with silver-resistant Morganella sp. The molecular mechanism of silver resistance and its gene products might have a key role to play in the overall synthesis process of AgNPs by Morganella sp. An understanding of such biochemical mechanisms at the molecular level might help in developing an ecologically friendly and cost-effective protocol for microbial AgNPs synthesis.</p>10aBiosynthesis10aMorganella sp.10aNanoparticles10asil gene homologues10aSilver1 aParikh, Rasesh, Y.1 aSingh, Sanjay1 aPrasad, Bhagavatula L. V.1 aPatole, Milind, S.1 aSastry, Murali1 aShouche, Yogesh, S.  uhttps://library.ncl.res.in/content/extracellular-synthesis-crystalline-silver-nanoparticles-and-molecular-evidence-silver-001892nas a2200265   4500008004100000022001400041245007000055210006900125260009500194300001400289490000600303520100600309653001701315653001001332653002601342653002401368653001801392100001701410700002701427700001501454700001701469700001701486700001901503856010401522       2008                        eng d  a1533-488000aStructure and microbial synthesis of sub-10 nm Bi2O3 nanocrystals0 aStructure and microbial synthesis of sub10 nm Bi2O3 nanocrystals  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScAUG  a3909-39130 v83 a<p>After the advent of novel chemical and microbial techniques, providing control over grain size and shape of the nanomaterials, several binary-oxide materials have been explored in size less than 10 nm for their tunable physical properties. Bi2O3 nanoparticles have also redrawn attention due to their excellent properties, mostly as optoelectronic material. Here, we report the room-temperature biosynthesis of Bi2O3 nanoparticles in a size range of 5-8 nm by extra-cellularly challenging the plant pathogenic fungus-Fusarium oxysporum with the bismuth nitrate as precursor. The as-synthesized particle-surfaces are inherently functionalized by a robust layer of proteins which provides them very good stability in the aqueous medium. Structural investigation using selected area electron diffraction, high resolution transmission electron microscopy and powder XRD shows that particles are almost perfectly single crystalline and primarily crystallize in alpha-phase with monoclinic structure.</p>10aBiosynthesis10afungi10aHigh Refractive Index10aHigh Resolution TEM10aNanoparticles1 aUddin, Imran1 aAdyanthaya, Suguna, D.1 aSyed, Asad1 aSelvaraj, K.1 aAhmad, Absar1 aPoddar, Pankaj  uhttps://library.ncl.res.in/content/structure-and-microbial-synthesis-sub-10-nm-bi2o3-nanocrystals-001819nas a2200253   4500008004100000245009700041210006900138260000800207300001000215490000600225520098700231653001701218653001701235653001801252653001701270653001901287100001801306700002501324700002101349700001901370700001701389700003001406856012901436       2010                        eng d00aBacterial synthesis of phtocatalytically active and biocompatible TiO2 and ZnO nanoparticles0 aBacterial synthesis of phtocatalytically active and biocompatibl  cDEC  a80-990 v23 a<p>TiO2 and ZnO nanoparticles are well known for their photocatalytic and ultraviolet (UV)-absorbent properties and have successfully entered into the market as consumer products. Large volume production of these nanoparticles by industries require environmentally friendly processes of synthesis. In this article, we show that when challenged with an appropriate precursor, the bacterium Actinobacter spp. can lead to the extracellular synthesis of ZnO and TiO2 nanoparticles. The biological way of synthesizing these materials probably leads to the in situ doping of elements like C, F, and N into their crystal lattices, which is evidenced by a red shift in the absorption edge. Because the doping is expected to affect the photocatalytic activity of these materials under different light conditions, such investigations have also been undertaken here. Further, the biocompatibility of these nanomaterials (cytotoxicity and genotoxicity) has also been investigated in detail.</p>10aBiosynthesis10agenotoxicity10aNanoparticles10aNanotoxicity10aPhotocatalysis1 aSingh, Sanjay1 aBritto, Virginia, D.1 aBharde, Atul, A.1 aSastry, Murali1 aDhawan, Alok1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/bacterial-synthesis-phtocatalytically-active-and-biocompatible-tio2-and-zno-nanoparticles02140nas a2200253   4500008004100000022001400041245010600055210006900161260009500230300001200325490000700337520118100344653002901525653001701554653002901571653001801600653002201618100002401640700001901664700002701683700001801710700003001728856012801758       2010                        eng d  a1533-488000aVice to virtue: intracellular biogenic nanoparticles for the generation of carbon supported catalysts0 aVice to virtue intracellular biogenic nanoparticles for the gene  a25650 NORTH LEWIS WAY, STEVENSON RANCH, CA 91381-1439 USAbAMER SCIENTIFIC PUBLISHERScFEB  a905-9110 v103 a<p>Intracellular biogenic nanoparticles are considered disadvantageous as the separation of the nanoparticles from the biomass becomes intricate. However realizing the importance of carbon supported catalyst for many important organic reactions we envisaged these nanoparticles as a source for carbon supported catalyst. Herein we demonstrate the heat treatment of intracellular biogenic nanoparticles under inert atmosphere as an efficient method for the preparation of carbon supported metal oxide catalysts. Aspergillus ochraceus, a fungus isolated from foundries, on incubation with K(2)TiF(6) led to the synthesis of intracellular titanium oxide nanoparticles. The nanoparticles embedded biomass upon heat treatment at 600 degrees C in a nitrogen environment gave titanium oxide nanoparticles implanted in a carbonaceous matrix. The material thus formed was characterized using FTIR spectroscopy, Raman spectroscopy, HRTEM and X-ray diffraction. Appreciable benzaldehyde selectivity was observed when styrene oxidation was carried out over such immobilized catalysts. The conversion rate was determined to be 76% and the benzaldehyde selectivity was greater than 80%.</p>10aBenzaldehyde Selectivity10aBiosynthesis10aCarbon Supported Titania10aNanoparticles10aStyrene Oxidation1 aVijayakumar, P., S.1 aSelvakumar, S.1 aGholap, Ramkrishna, S.1 aSingh, A., P.1 aPrasad, Bhagavatula L. V.  uhttps://library.ncl.res.in/content/vice-virtue-intracellular-biogenic-nanoparticles-generation-carbon-supported-catalysts-001842nas a2200229   4500008004100000022001400041245009500055210006900150260008000219300001200299490000700311520103800318653001701356653002301373653001801396653001501414653000801429100001301437700002101450700001901471856012201490       2011                        eng d  a0931-189000aSynthesis of gold nanoparticles by various leaf fractions of Semecarpus anacardium L. tree0 aSynthesis of gold nanoparticles by various leaf fractions of Sem  aTIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANYbSPRINGER HEIDELBERGcAPR  a145-1510 v253 a<p>Gold nanoparticles (NPs) were synthesized using Semecarpus anacardium leaf extracts in water and the green biomass. Extract prepared at ambient condition by crushing the leaves in deionized water is identified as `green extract', and that by boiling the leaf pieces as `boiled extract'. The mass remaining after separating the `green extract' is identified as `green biomass'. These components triggered rapid reduction of Au(III) to Au (0) in HAuCl4 solution indicating the natural ability of the leaves of S. anacardium to synthesize NPs in ambient conditions. Green extract produced more NPs compared to the boiled extract suggesting denaturization of some of the useful factors due to boiling. NPs were quantified using UV and ICP-AES analysis. These were characterized using Transmission electron microscopy, Fourier transform infrared spectroscopy and X-ray diffraction. TEM images of the particles formed with green extract, boiled extract and green biomass showed that the particles were of different shapes and sizes.</p>10aBiosynthesis10agold nanoparticles10aGreen extract10aSemecarpus10aTEM1 aRaju, D.1 aMehta, Urmil, J.1 aHazra, Sulekha  uhttps://library.ncl.res.in/content/synthesis-gold-nanoparticles-various-leaf-fractions-semecarpus-anacardium-l-tree-002203nas a2200205   4500008004100000022001400041245009300055210006900148260007300217300001000290490000700300520147600307653001701783653001101800653001801811653001301829100001501842700001701857856012301874       2012                        eng d  a0927-776500aExtracellular biosynthesis of platinum nanoparticles using the fungus fusarium oxysporum0 aExtracellular biosynthesis of platinum nanoparticles using the f  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcSEP  a27-310 v973 a<p>Nanoscience is a blooming field and promises a better future. In order to fabricate nanoparticles in an eco-friendly and inexpensive manner, significant efforts are being made to replace the chemical and physical methods currently being used with the biological methods. Chemical methods are toxic while the physical ones are very expensive. Biological methods, apart from being cost-effective, also provide protein capped nanoparticles which are thus very stable, have good dispersity and do not flocculate, and may find use in various applications. The present work emphasizes on platinum nanoparticles synthesis protocol which occurs at ambient conditions. The fungus Fusarium oxysporum when incubated with hexachloroplatinic acid (H2PtCl6) in ambient conditions reduces the precursor and leads to the formation of stable extracellular platinum nanoparticles. The biosynthesis of platinum nanoparticles was monitored by UV-visible spectroscopy and these nanoparticles were completely characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The nanoparticles are in the size range of 5-30 nm and are stabilized by proteins present in the solution. The reduction process is believed to occur enzymatically, thus creating the possibility of a rational, fungal-based method for the synthesis of nanoparticles over a wide range of chemical compositions. (C) 2012 Elsevier B.V. All rights reserved.</p>10aBiosynthesis10aFungus10aNanoparticles10aplatinum1 aSyed, Asad1 aAhmad, Absar  uhttps://library.ncl.res.in/content/extracellular-biosynthesis-platinum-nanoparticles-using-fungus-fusarium-oxysporum-001569nas a2200253   4500008004100000022001400041245008500055210006900140260007300209300001200282490000700294520071000301653001001011653001701021653001801038653001901056653002801075100002501103700001501128700001601143700002001159700001701179856011901196       2012                        eng d  a0167-577X00aIntracellular synthesis of gold nanoparticles using alga tetraselmis kochinensis0 aIntracellular synthesis of gold nanoparticles using alga tetrase  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJUL  a116-1180 v793 a<p>The development of eco-friendly synthesis protocol for the synthesis of nanoscale materials of different compositions, shapes and sizes is an important area of research in the field of nanotechnology. In this paper, we report on the use of alga Tetraselmis kochinensis in the intracellular synthesis of gold nanoparticles of dimensions 5-35 nm. The particles are more concentrated upon the cell wall than on the cytoplasmic membrane, possibly due to reduction of the metal ions by enzymes present in the cell wall and cytoplasmic membrane. These intracellular nanoparticles may have applications in drug delivery, biomedical applications, catalysis, etc. (C) 2012 Elsevier B.V. All rights reserved.</p>10aAlgae10aBiosynthesis10aNanoparticles10ananotechnology10aTetraselmis kochinensis1 aSenapati, Satyajyoti1 aSyed, Asad1 aMoeez, Sana1 aKumar, Ashutosh1 aAhmad, Absar  uhttps://library.ncl.res.in/content/intracellular-synthesis-gold-nanoparticles-using-alga-tetraselmis-kochinensis-002302nas a2200241   4500008004100000022001400041245008900055210006900144260011100213300001200324490000600336520145700342653001701799653001101816653002301827653001501850653001101865653000801876100001301884700002101897700001701918856012501935       2013                        eng d  a1573-413700aExtra- and intracellular gold nanoparticles synthesis using live peanut callus cells0 aExtra and intracellular gold nanoparticles synthesis using live   aEXECUTIVE STE Y-2, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB EMIRATESbBENTHAM SCIENCE PUBL LTDcFEB  a107-1120 v93 a<p>An important challenge of considerable topical significance in nanotechnology is the development of eco-friendly experimental processes for the synthesis of nanomaterials in large quantities with variable sizes, shapes and chemical compositions. Green synthesis routes for the production of inorganic metal nanoparticles using whole cell of microorganisms and plant extracts are gaining tremendous popularity as these are non-toxic, cheap and occur at ambient conditions. The present work emphasizes on gold nanoparticles synthesis protocol using live plant callus cells. Peanut callus cells when incubated with HAuCl4 solution in ambient conditions reduced the precursor and lead to formation of well dispersed, water soluble extracellular and intracellular gold nanoparticles within 24 hours. The biosynthesis of gold nanoparticles was monitored by UV-visible spectroscopy (UV-Vis) and further characterized by X-ray diffraction analysis (XRD), Energy Dispersive Spectroscopy (EDS) and Selected Area Electron Diffraction (SAED). The particle size distribution shows that the average particle size is 50 nm for extra-and 31 nm for intracellular gold nanoparticles. The nanoparticles may be stabilized by proteins secreted by callus cells. The reduction process is believed to occur enzymatically, thus creating the possibility of a rational, plant cell-based method for the synthesis of nanoparticles over a wide range of chemical compositions.</p>10aBiosynthesis10acallus10agold nanoparticles10alive cells10aPeanut10aTEM1 aRaju, D.1 aMehta, Urmil, J.1 aAhmad, Absar  uhttps://library.ncl.res.in/content/extra-and-intracellular-gold-nanoparticles-synthesis-using-live-peanut-callus-cells-002033nas a2200217   4500008004100000022001400041245011900055210006900174260010600243300001000349490000800359520120700367653002701574653001701601653000901618653001101627653001801638100001501656700001701671856012701688       2013                        eng d  a1386-142500aExtracellular biosynthesis of CdTe quantum dots by the fungus fusarium oxysporum and their anti-bacterial activity0 aExtracellular biosynthesis of CdTe quantum dots by the fungus fu  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcAPR  a41-470 v1063 a<p>The growing demand for semiconductor [quantum dots (Q-dots)] nanoparticles has fuelled significant research in developing strategies for their synthesis and characterization. They are extensively investigated by the chemical route; on the other hand, use of microbial sources for biosynthesis witnessed the highly stable, water dispersible nanoparticles formation. Here we report, for the first time, an efficient fungal-mediated synthesis of highly fluorescent CdTe quantum dots at ambient conditions by the fungus Fusarium oxysporum when reacted with a mixture of CdCl2 and TeCl4. Characterization of these biosynthesized nanoparticles was carried out by different techniques such as Ultraviolet-visible (UV-Vis) spectroscopy, Photoluminescence (PL), X-ray Diffraction (XRD), X-ray Photoelectron spectroscopy (XPS), Transmission Electron Microscopy (TEM) and Fourier Transformed Infrared Spectroscopy (FTIR) analysis. CdTe nanoparticles shows antibacterial activity against Gram positive and Gram negative bacteria. The fungal based fabrication provides an economical, green chemistry approach for production of highly fluorescent CdTe quantum dots. (C) 2013 Elsevier B.V. All rights reserved.</p>10aantibacterial activity10aBiosynthesis10aCdTe10aFungus10aNanoparticles1 aSyed, Asad1 aAhmad, Absar  uhttps://library.ncl.res.in/content/extracellular-biosynthesis-cdte-quantum-dots-fungus-fusarium-oxysporum-and-their-anti-002305nas a2200277   4500008004100000022001400041245009800055210006900153260011100222300001200333490000700345520133600352653001701688653001201705653001001717653001801727653001801745100002501763700001501788700001701803700001901820700002601839700001701865700001701882856012801899       2014                        eng d  a1573-413700aExtracellular biosynthesis of metal sulfide nanoparticles using the fungus fusarium oxysporum0 aExtracellular biosynthesis of metal sulfide nanoparticles using   aEXECUTIVE STE Y-2, PO BOX 7917, SAIF ZONE, 1200 BR SHARJAH, U ARAB EMIRATESbBENTHAM SCIENCE PUBL LTDcJUL  a588-5950 v103 a<p>The development of reliable, eco-friendly processes for the synthesis of nanomaterials is an important aspect of nanotechnology. One approach that shows immense potential is based on the biosynthesis of nanoparticles using microorganisms such as bacteria. In this report, we demonstrate the extracellular biosynthesis and complete characterization of metal sulfide (PbS, ZnS, MnS and NiS) nanoparticles using fungus, Fusarium oxysporum. We observed that the exposure of aqueous solution of 1 mM metal sulfate to fungus Fusarium oxysporum resulted in the formation of highly stable technologically important metal sulfide semiconductor nanoparticles. Fusarium oxysporum synthesizes lead sulfide and zinc sulfide nanoparticles of fractal type structure whereas manganese sulfide and nickel sulfide nanoparticles are of variable polydispersed morphology. The variable morphology may be due to the dissimilar interaction of metal sulfide nanoparticles with capping proteins secreted by the fungus in solution. The nanoparticles solution is found to be extremely stable with little evidence of aggregation even after a month of storage. The long term stability of the nanoparticles is due to the proteins secreted by fungus in the nanoparticle solution which bind to the surface of the nanoparticles and thus prevent aggregation.</p>10aBiosynthesis10aenzymes10afungi10ametal sulfide10aNanoparticles1 aSenapati, Satyajyoti1 aSyed, Asad1 aKhan, Shadab1 aPasricha, Renu1 aKhan, Mohammad, Islam1 aKumar, Rajiv1 aAhmad, Absar  uhttps://library.ncl.res.in/content/extracellular-biosynthesis-metal-sulfide-nanoparticles-using-fungus-fusarium-oxysporum-002128nas a2200277   4500008004100000022001400041245007700055210006900132260008800201300001200289490000700301520119600308653001701504653001401521653002301535653002501558653002801583100001701611700002001628700002401648700001801672700001701690700001601707700001901723856010801742       2015                        eng d  a0217-984900aBiosynthesis of silver nanoparticles by using ganoderma-mushroom extract0 aBiosynthesis of silver nanoparticles by using ganodermamushroom   a5 TOH TUCK LINK, SINGAPORE 596224, SINGAPOREbWORLD SCIENTIFIC PUBL CO PTE LTDcMAR  a15400470 v293 a<p>Present study reports the biochemical synthesis of silver nanoparticles (Ag-NPs) from aqueous medium by using the extract of medicinal mushroom Ganoderma, as a reducing and stabilizing agents. The Ag-NPs are prepared at room temperature by the reduction of Ag+ to Ag in aqueous solution of AgNO3. The resultant particles are characterized by using UV-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy and transmission electron microscopy (TEM) measurement techniques. The formation of Ag-NPs is confirmed by recording the UV-visible absorption spectra for surface plasmon resonance (SPR) where peak around 427 nm. The prominent changes observed in FTIR spectra supported the reduction of Ag+ to Ag. The morphological features of Ag-NPs are evaluated from HRTEM. The spherical Ag-NPs are observed in transmission electron microscopy (TEM) studies. The particle size distribution is found to be nearly uniform with average particle size of 2 nm. The Ag-NPs aged for 15, 30, 60 and 120 days showed no profound effect on the position of SPR peak in UV-visible studies, indicating the protecting/capping ability of medicinal mushroom Ganoderma in the synthesis of AgNPs.</p>10aBiosynthesis10aGanoderma10amedicinal mushroom10asilver nanoparticles10aUV-visible spectroscopy1 aEkar, S., U.1 aKhollam, Y., B.1 aKoinkar, Pankaj, M.1 aMirji, S., A.1 aMane, R., S.1 aNaushad, M.1 aJadhav, S., S.  uhttps://library.ncl.res.in/content/biosynthesis-silver-nanoparticles-using-ganoderma-mushroom-extract-102651nas a2200289   4500008004100000022001400041245007800055210006900133260010600202300001200308490000800320520167200328653001702000653001702017653002302034653001702057653002402074100001502098700001702113700002502130700001702155700002402172700001602196700002102212700002202233856010602255       2016                        eng d  a1386-142500aBiogenic terbium oxide nanoparticles as the vanguard against osteosarcoma0 aBiogenic terbium oxide nanoparticles as the vanguard against ost  aTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLANDbPERGAMON-ELSEVIER SCIENCE LTDcNOV  a123-1310 v1683 a<p>The synthesis of inner transition metal nanoparticles via an ecofriendly route is quite difficult. This study, for the first time, reports synthesis of terbium oxide nanoparticles using fungus, Fusarium oxysporum. The biocompatible terbium oxide nanoparticles (Tb2O3 NPs) were synthesized by incubating Tb4O7 with the biomass of fungus F. oxysporum. Multiple physical characterization techniques, such as UV-visible and photoluminescence spectroscopy, TEM, SAED, and zeta-potential were used to confirm the synthesis, purity, optical and surface characteristics, crystallinity, size, shape, distribution, and stability of the nanoemulsion of Tb2O3 NPs. The Tb2O3 NPs were found to inhibit the propagation of MG-63 and Saos-2 cell-lines (IC50 value of 0.102 mu g/mL) and remained non-toxic up to a concentration of 0373 gg/mL toward primary osteoblasts. Cell viability decreased in a concentration-dependent manner upon exposure to 10 nmTb(2)O(3) NPs in the concentration range 0.023-0373 mu g/mL Cell toxicity was evaluated by observing changes in cell morphology, cell viability, oxidative stress parameters, and FACS analysis. Morphological examinations of cells revealed cell shrinkage, nuclear condensation, and formation of apoptotic bodies. The level of ROS within the cells an indicator of oxidative stress was significantly increased. The induction of apoptosis at concentrations &lt;= IC50 was corroborated by 4',6-diamidino-2-phenylindole dihydrochloride (DAPI) staining (DNA damage and nuclear fragmentation). Flow-cytometric studies indicated that the response was dose dependent with a threshold effect. (C) 2016 Elsevier B.V. All rights reserved.</p>10aBiosynthesis10aCytotoxicity10afusarium oxysporum10aOsteosarcoma10aTb2O3 nanoparticles1 aIram, Sana1 aKhan, Salman1 aAnsary, Abu, Ayoobul1 aArshad, Mohd1 aSiddiqui, Sahabjada1 aAhmad, Ejaz1 aKhan, Rizwan, H.1 aKhan, Mohd, Sajid  uhttps://library.ncl.res.in/content/biogenic-terbium-oxide-nanoparticles-vanguard-against-osteosarcoma01571nas a2200337   4500008004100000022001400041245013500055210006900190260000800259490000700267520044100274653001200715653001600727653001700743653002000760653001600780653001400796653004100810653001700851653001600868653002500884653001100909653002400920653003700944653002900981100002801010700002601038700002601064700002401090856011901114       2017                        eng d  a0039-788100aPhenol oxidative dearomatization of modified nucleoside templates: a simple access to the c7-spiroannulated octosyl acid framework0 aPhenol oxidative dearomatization of modified nucleoside template  cSEP0 v493 a<p><span style="color: rgb(51, 51, 51); font-family: arial, helvetica, sans-serif; font-size: 13px; background-color: rgb(248, 248, 248);">Phenol oxidative dearomatization and cyclization has been executed successfully on nucleoside templates to synthesize C7-spiroannulated perhydrofuropyran nucleosides and C6-spiroannulated perhydrofurofuran nucleosides as novel analogues of octosyl acid and related peptidyl nucleosides.</span></p>10aAnalogs10aantibiotics10aBiosynthesis10aChitin synthase10aDerivatives10aEzomycins10aGlucose Diacetonide Natural-products10aGriseofulvin10aMalayamycin10aModified nucleosides10aMoiety10aPeptidyl Glycosides10aPhenol Oxidative Dearomatization10aVorbruggen Glycosylation1 aMullapudi, Venkannababu1 aBhogade, Ravindra, B.1 aDeshpande, Mukund, V.1 aRamana, Chepuri, V.  uhttps://library.ncl.res.in/content/phenol-oxidative-dearomatization-modified-nucleoside-templates-simple-access-c702331nas a2200301   4500008004100000022001400041245009800055210006900153260000900222300001000231490000700241520139200248653001701640653001701657653001701674653001401691653001601705653001701721100001501738700002601753700002101779700002701800700001901827700001701846700001801863700001701881856013101898       2022                        eng d  a1751-825300aAlpha Au2S nanoparticles: fungal-mediated synthesis, structural characterization and bioassay0 aAlpha Au2S nanoparticles fungalmediated synthesis structural cha  cJAN   a59-680 v153 aLuminescent nanoparticles synthesized via bio-based protocols that generate nanoparticles having different chemical compositions along with other functionalities (size and morphology) have received huge attention. We have focused our research on gold sulfide nanoparticles (Au2S NPs) and have biosynthesized these NPs using the fungus Humicola sp. The nanoparticles were characterized by Transmission Electron Microscopy, which showed spherical morphology of Au2S. UV-Visible-NIR spectrophotometry, luminescence spectrophotometry, Selected Area Electron Diffraction, Energy Dispersive Analysis of X-rays, and X-ray diffraction were performed. FTIR confirmed that the fungal metabolites including biomolecules secreted in the reaction medium are primarily responsible for nanoparticle synthesis and stabilization. The fungus reduced the precursor solution (HAuCl4 and Na2SO3) and at the same time capped them with secreted biomolecules. The anti-leishmanial activity of Au2S NPs was determined against L. donovani promastigote (Ag83 strain). Au2S NPs displayed less cytotoxicity towards both normal and cancer (Daudi, ZR-75-1) cell lines. Hemocompatibility was determined via hemolysis assays. This novel fungal-based system demonstrates an economical and environmentally benign process for biosynthesis of Au2S nanoparticles which may find application in bioimaging and labeling studies.10aBiosynthesis10aCytotoxicity10aGold sulfide10aHemolysis10ahumicola sp10apromastigote1 aSyed, Asad1 aSaedi, Marzouq, H. Al1 aBahkali, Ali, H.1 aElgorgan, Abdallah, M.1 aKharat, Mahesh1 aPai, Kalpana1 aPichtel, John1 aAhmad, Absar  uhttps://library.ncl.res.in/content/alpha-au2s-nanoparticles-fungal-mediated-synthesis-structural-characterization-and-bioassay