02352nas a2200205   4500008004100000022001400041245017900055210006900234260000900303300001400312490000600326520155500332100002401887700001801911700002301929700002301952700001801975700002101993856013202014       2020                        eng d  a2516-023000aAgro-waste extracted cellulose supported silver phosphate nanostructures as a green photocatalyst for improved photodegradation of RhB dye and industrial fertilizer effluents0 aAgrowaste extracted cellulose supported silver phosphate nanostr  cJUL   a2870-28840 v23 a<p>The efficiency and reusability of photocatalysts are the dominant factors for their pragmatic use. The visible light induced semiconductor silver phosphate is a superior photocatalyst effective under visible light but its stability is still an undiscussed issue. To overcome this stability issue in this present manuscript, eco-friendly agro-waste extracted cellulose supported silver phosphate nanostructures have been designed for the first time through a simple chemical process. At first, silver phosphate nanostructures were synthesized by the co-precipitation method. Then, different weights of cellulose were added to the silver nitrate solution to form cellulose supported silver phosphate nanostructures. The photodegradation efficiency for each weight ratio was examined in which the photocatalyst Ag-8 nanostructures showed a high rate (0.024 min(-1)) for degradation of Rhodamine B (RhB) using a low intensity tungsten bulb. Real sample analysis has also been carried out using this photocatalyst for the degradation of industrial fertilizer effluents. The degradation rate of all the nanostructures was found to be high in comparison to pristine silver phosphate as well as the extracted bare cellulose. The photocatalytic activity is enhanced because of the participation of cellulose as a support which makes an interface for silver phosphate and assists it in delaying the charge recombination period under visible light. To understand the photochemical reaction of electrons and holes, scavenger studies were also performed.</p>
1 aDwivedi, Pravin, K.1 aNair, Aathira1 aMehare, Rupali, S.1 aChaturvedi, Vikash1 aJoshi, Kavita1 aShelke, Manjusha  uhttps://library.ncl.res.in/content/agro-waste-extracted-cellulose-supported-silver-phosphate-nanostructures-green-photocatalyst02868nas a2200337   4500008004100000022001400041245018300055210006900238260000900307300001600316490000700332520173300339653002402072653001602096653001202112653001302124653002502137653001802162100002302180700002102203700001402224700001602238700002102254700001902275700002302294700002002317700002302337700002502360700002002385856012502405       2023                        eng d  a1944-824400aAtomically dispersed manganese on graphene nanosheets as biocompatible nanozyme for glutathione detection in liver tissue lysate using microfluidic paper-based analytical devices0 aAtomically dispersed manganese on graphene nanosheets as biocomp  cOCT   a47902-479200 v153 a<p>
	Recently, single atom catalysts (SACs) featuring M-N-x (M = metal) active sites on carbon support have drawn considerable attention due to their promising enzyme-like catalytic properties. However, typical synthesis methods of SACs often involve energy-intensive carbonization processes. Herein, we report a facile one-pot, low-temperature, wet impregnation method to fully utilize M-N-4 sites of manganese phthalocyanine (MnPc) by decorating molecular MnPc over the sheets of graphene nanoplatelets (GNP). The synthesized MnPc@GNP exhibits remarkable peroxidase-mimic catalytic activity toward the oxidation of chromogenic 3,3 `,5,5(')-tetramethylbenzidine (TMB) substrate owing to the efficient utilization of atomically dispersed Mn and the high surface-to-volume ratio of the porous catalyst. A nanozyme-based colorimetric sensing probe is developed to detect important biomarker glutathione (GSH) within only 5 min in solution phase based on the ability of GSH to effectively inhibit the TMB oxidation. The high sensitivity and selectivity of the developed colorimetric assay enable us to quantitatively determine GSH concentration in different biological fluids. This work, for the first time, reports a rapid MnPc@GNP nanozyme-based colorimetric assay in the solid substrate by fabricating microfluidic paper-based analytical devices (mu PADs). GSH is successfully detected on the fabricated mu PADs coated with only 6.0 mu g of nanozyme containing 1.6 nmol of Mn in the linear range of 0.5-10 mu M with a limit of detection of 1.23 mu M. This work also demonstrates the quantitative detection of GSH in mice liver tissue lysate using mu PADs, which paves the way to develop mu PADs for point-of-care testing.</p>
10acolorimetricsensing10aGlutathione10amu PADs10ananozyme10asingle atom catalyst10atissue lysate1 aBaruah, Diksha, J.1 aThakur, Ashutosh1 aRoy, Esha1 aRoy, Kallol1 aBasak, Sumanjita1 aNeog, Dipankar1 aBora, Himangsu, K.1 aKonwar, Rituraj1 aChaturvedi, Vikash1 aShelke, Manjusha, V.1 aDas, Manash, R.  uhttps://library.ncl.res.in/content/atomically-dispersed-manganese-graphene-nanosheets-biocompatible-nanozyme-glutathione