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461.
Yoichi Sasaki Mio Oshikawa Pankaj Bharmoria Hironori Kouno Akiko Hayashi‐Takagi Moritoshi Sato Itsuki Ajioka Nobuhiro Yanai Nobuo Kimizuka 《Angewandte Chemie (Weinheim an der Bergstrasse, Germany)》2019,131(49):17991-17997
Photon upconversion (UC) from near‐infrared (NIR) light to visible light has enabled optogenetic manipulations in deep tissues. However, materials for NIR optogenetics have been limited to inorganic UC nanoparticles. Herein, NIR‐light‐triggered optogenetics using biocompatible, organic TTA‐UC hydrogels is reported. To achieve triplet sensitization even in highly viscous hydrogel matrices, a NIR‐absorbing complex is covalently linked with energy‐pooling acceptor chromophores, which significantly elongates the donor triplet lifetime. The donor and acceptor are solubilized in hydrogels formed from biocompatible Pluronic F127 micelles, and heat treatment endows the excited triplets in the hydrogel with remarkable oxygen tolerance. Combined with photoactivatable Cre recombinase technology, NIR‐light stimulation successfully performs genome engineering resulting in the formation of dendritic‐spine‐like structures of hippocampal neurons. 相似文献
462.
Sarma Chandana Chaurasia Pankaj Kumar Bharati Shashi Lata 《Russian Journal of General Chemistry》2019,89(3):517-531
Russian Journal of General Chemistry - Manganese forms a big number of complexes with Schiff bases that are extensively used as catalysts of oxidation, epoxidation, decarboxylation, coupling... 相似文献
463.
Pardeep Singh Pankaj Raizada Anita Sudhaik Pooja Shandilya Pankaj Thakur Shilpi Agarwal Vinod Kumar Gupta 《Journal of Saudi Chemical Society》2019,23(5):586-599
In this work, we have reported synthesis of AgBr/BiOBr photocatalyst supported on graphene (Gr) using facile precipitation method. AgBr/BiOBr/Gr was characterized using various spectral techniques like FESEM, TEM, XRD, FTIR, XPS, Raman and PL analyses. AgBr/BiOBr/Gr had improved visible light absorption. PL studies indicated the reduction in recombination of photogenerated electron hole pair of AGBr/BiOBr/Gr. AFM analysis confirmed the thickness of AGBr/BiOBr/Gr was less than 8.0 nm. The higher dispersibility of photocatalyst was ascertained by Tyndall effect. AgBr/BiOBr/Gr photocatalyst was effectively used for the photodegradation of phenol from simulated water. The phenol degradation process was remarkably influenced by adsorption process. The concurrent adsorption and photocatalytic was effective for degradation of phenol. The phenol was completely mineralized into CO2 and H2O in 6 h. The degradation process followed pseudo first order kinetics. The results confirmed that integration of AgBr/BiOBr with graphene caused an increase in photocatalytic activity due to reduced recombination of photogenerated electron hole pair and electron sink behavior of graphene for photogenerated electrons of BiOBr. AgBr/BiOBr/Gr photocatalyst displayed significant stability and recyclability for ten catalytic cycles. 相似文献
464.
Mane Prasad Shinde Bipin Mundada Pankaj Karale Bhausaheb Burungale Arvind 《Research on Chemical Intermediates》2021,47(5):1743-1758
Research on Chemical Intermediates - In the present protocol, biogenic synthesis of ZnO nanoparticles using an aqueous extract of weed, i.e. Parthenium is efficiently carried out. The proficient... 相似文献
465.
Miniyar Pankaj B. Chavan Prajakta D. Patil Shriniwas P. Thomas Asha B. Chitlange Sohan S. 《平面色谱法杂志一现代薄层色谱法》2022,35(1):73-81
JPC – Journal of Planar Chromatography – Modern TLC - Omeprazole contains benzimidazole substitute, and it acts as a proton-pump inhibitor used for gastroduodenal ulcers.... 相似文献
466.
Yingguo Liu Pankaj Kumar Majhi Runjiang Song Chengli Mou Lin Hao Huifang Chai Zhichao Jin Yonggui Robin Chi 《Angewandte Chemie (International ed. in English)》2020,59(10):3859-3863
A catalytic dynamic kinetic resolution and asymmetric acylation reaction of hydroxyphthalides is developed. The reaction involves formation of a carbene catalyst derived chiral acyl azolium intermediate that effectively differentiates the two enantiomers of racemic hydroxyphthalides. The method allows quick access to enantiomerically enriched phthalidyl esters with proven applications in medicine. It also enables asymmetric modification of natural products and other functional molecules that contain acetal/ketal groups, such as corollosporine and fimbricalyxlactone C. 相似文献
467.
Mane Prasad Shinde Bipin Mundada Pankaj Gawade Vilas Karale Bhausaheb Burungale Arvind 《Research on Chemical Intermediates》2020,46(1):231-241
Research on Chemical Intermediates - An efficient, straightforward and rapid method has been developed for the synthesis of tetrahydrobenzo[α] xanthen-11-one using sodium acetate. The reaction... 相似文献
468.
Design and synthesis of two armed molecular receptor for recognition of Gd3+ metal ion and its computational study
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Brij Mohan Krunal Modi Chirag Patel Pankaj Bhatia Ashwani Kumar Harish Kumar Sharma 《应用有机金属化学》2018,32(10)
New receptor P henylene‐ B is‐ M ethylfuran‐yl‐2‐ M ethyele A cetohydrazide ( PBMMA ) has been synthesized by condensation of hydrazide and 5‐methyl furfural. Synthesized receptor has been fully characterized by IR, 1H NMR, 13C NMR, mass spectroscopic and thermo gravimetric analysis. The receptor PBMMA shows selective recognition potential towards Gd3+ ion when tested with several metal ions such as Na+, K+, Mg2+, Cu2+, Cd2+, Hg2+, Y3+, La3+, Eu3+, Sm3+, Gd3+, Re6+ and Th4+ ion as their sulfates by UV–visible and fluorescence spectroscopic studies. Binding nature of PBMMA with Gd3+ ion was further studied by mass spectroscopic and cyclic voltammetric studies. The stoichiometry of PBMMA‐ Gd3+ ion has been established, 1:1 by Benesi‐Hildebrand plot method and method of continuous variation (Job's plot) with association affinity K = 6.491 × 104 M?1. In addition to these, molecular docking, molecular dynamic stimulation and binding energy of complex; through Density Function theory ?595.66 kcal/mol has also indication of strong binding. The electron transfer energy of Higher occupied molecular orbital (HOMO) to Lower unoccupied molecular orbital (LUMO) is about 4.186 eV and 295 nm for PBMMA‐Gd3+ Complex. 相似文献
469.
470.
Ricerche di Matematica - The main aim of this paper to provide several scales of equivalent conditions for the bilinear Hardy inequalities in the case $$1< q, p_1, p_2<\infty $$ with... 相似文献