02144nas a2200277   4500008004100000022001400041245012900055210006900184260013200253300001400385490000600399520110200405653000801507653003501515653001401550653001301564653002101577653002701598100002301625700002001648700001501668700001601683700002101699700002701720856011901747       2010                        eng d  a1475-743500aRapid generation of hierarchical nanoarchitectures of CdS via facile microwave assisted hydrothermal/semi-solvothermal route0 aRapid generation of hierarchical nanoarchitectures of CdS via fa  aWORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 896, CH-1215 GENEVA, SWITZERLANDbINDERSCIENCE ENTERPRISES LTDcDEC  a1120-11300 v73 a<p>1-D nanorod bundles as well as sea urchin and starfish like hierarchical morphological nanoarchitectures of CdS have been synthesised using a facile microwave assisted hydrothermal/semi-solvothermal technique. Observation of interesting regular/irregular pine-tree like secondary growth over these hierarchical nanoarchitectures is an important aspect of this work. Cadmium acetate and thiourea were used as precursor materials and were dissolved in solution containing mixture of diethylene triamine (DETA) and deionised water (DIW) in different volume ratios prior to subjecting the resultant solution to microwave radiation of 300 W at a reaction time of 10 min and temperature of 140 degrees C. XRD revealed formation of hexagonal CdS with strong (002) preferred orientation (c-axis orientation). Morphology dependent optical properties are studied using room temperature photoluminescence spectroscopy. We feel such secondary growth will be highly favourable in determining the non-linear properties of optoelectronic devices fabricated using such novel hierarchical nanoarchitectures.</p>10aCdS10ahierarchical nanoarchitectures10aMicrowave10aNanorods10asecondary growth10asolvothermal synthesis1 aShinde, Manish, D.1 aPawar, Amol, U.1 aSreeja, V.1 aRane, Sunit1 aPotdar, Hari, S.1 aAmalnerkar, Dinesh, P.  uhttps://library.ncl.res.in/content/rapid-generation-hierarchical-nanoarchitectures-cds-facile-microwave-assisted-002428nas a2200241   4500008004100000022001400041245015600055210006900211260000800280300000900288490000700297520153600304100002101840700002301861700001901884700002701903700002601930700002001956700002701976700002802003700002802031856012702059       2020                        eng d  a2045-232200aHighly sensitive label-free bio-interfacial colorimetric sensor based on silk fibroin-gold nanocomposite for facile detection of chlorpyrifos pesticide0 aHighly sensitive labelfree biointerfacial colorimetric sensor ba  cMAR  a41980 v103 a<p>Herein, the preparation of gold nanoparticles-silk fibroin (SF-AuNPs) dispersion and its label-free colorimetric detection of the organophosphate pesticide, namely chlorpyrifos, at ppb level are reported. The silk fibroin solution was extracted from B. mori silk after performing degumming, dissolving and dialysis steps. This fibroin solution was used for synthesis of gold nanoparticles in-situ without using any external reducing and capping agent. X-ray Diffractometry (XRD), Field Emission Transmission Electron Microscopy (FETEM) along with Surface Plasmon Resonance based optical evaluation confirmed generation of gold nanoparticles within SF matrix. The resultant SF-AuNPs dispersion exhibited rapid and excellent colorimetric pesticide sensing response even at 10 ppb concentration. Effect of additional parameters viz. pH, ionic concentration and interference from other pesticide samples was also studied. Notably, SF-AuNPs dispersion exhibited selective colorimetric pesticide sensing response which can be calibrated. Furthermore, this method was extended to various simulated real life samples such as tap water, soil and agricultural products including plant residues to successfully detect the presence of chlorpyrifos pesticide. The proposed colorimetric sensor system is facile yet effective and can be employed by novice rural population and expert researchers alike. It can be exploited as preliminary tool for label-free colorimetric chlorpyrifos pesticide sensing in water and agricultural products.</p>
1 aMane, Pramod, C.1 aShinde, Manish, D.1 aVarma, Sanjana1 aChaudhari, Bhushan, P.1 aFatehmulla, Amanullah1 aShahabuddin, M.1 aAmalnerkar, Dinesh, P.1 aAldhafiri, Abdullah, M.1 aChaudhari, Ravindra, D.  uhttps://library.ncl.res.in/content/highly-sensitive-label-free-bio-interfacial-colorimetric-sensor-based-silk-fibroin-gold02395nas a2200205   4500008004100000020001400041245019500055210006900250260000800319520162100327100002101948700001901969700002301988700003002011700002302041700002802064700002302092700002702115856004702142       2022                        eng d  a2522-574X00aOne-pot concurrent biosynthesis of biphasic CuxO (cuprous and cupric oxide) nanoparticles using leaf extract of Eichhornia crassipes and investigation of their potent healthcare applications0 aOnepot concurrent biosynthesis of biphasic CuxO cuprous and cupr  cFEB3 aEichhornia crassipes, an aquatic weed, has been used for the one-pot quick synthesis of cuprous and cupric oxide nanoparticles in this report. The identification and validation of the formed nanoparticles were successfully done by sophisticated characterization techniques such as UV–visible spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy. Their biomedical interventions were assessed by their antioxidant and anticancer activities. The synthesized nanoparticles have a spherical morphology with an average diameter of 10 nm. Antioxidant assay performed showed an increasing trend in a dose-dependent manner with the percentage radical scavenging activity up to 94.70% at a much higher concentration of 1000 µg/ml. The antioxidant potential at such higher concentration is suspected to invoke a change in the cytotoxic potential of the nanoparticles which is then verified by the MTT assay. A significant cytotoxic activity against HeLa (cervical cancer) and HCT 116 (colorectal carcinoma) cell lines was detected with noted IC50 values of 17.17 and 13.70 µg/ml respectively. The conclusive findings obtained are enough to substantiate the use of these nanoparticles in biomedical areas specifically in anticancer treatment due to their high toxicities. The hazards imposed by Eichhornia crassipes can be alleviated by using them as biofactories for the synthesis of a variety of nanomaterials. This helps in curbing the water pollution issues as well as the developing synthesis protocols for robust and stable nanoparticles.1 aMoudgil, Aliesha1 aVarma, Sanjana1 aShinde, Manish, D.1 aVamkudoth, Koteswara, Rao1 aSarkar, Dhiman, M.1 aShende, Rajnigandha, A.1 aAmalnerkar, Dinesh1 aChaudhari, Bhushan, P.  uhttps://doi.org/10.1007/s42247-022-00347-1