Results 121 to 130 of about 1,362,496 (337)

SI‐bioATRP in Mesoporous Silica for Size‐Exclusion Driven Local Polymer Placement

Advanced Functional Materials, EarlyView.
An enzyme‐catalyzed surface‐initiated atom transfer radical polymerization (SI‐bioATRP) of an anionic monomer within mesoporous silica particles, using hemoglobin as a catalyst, allows for controlling the location of the formed polymer via size‐exclusion effects between the nanopores and the biomacromolecules, thereby opening routes to functional ...
Oleksandr Wondra, Eleonora Ornati, Robert Lehn, Joanna J. Mikolei, Hergen Breitzke, Raheleh Pardehkhorram, Gerd Buntkowsky, Nico Bruns, Annette Andrieu‐Brunsen   +8 more
wiley   +1 more source

60 MHz 1H NMR spectroscopy for the analysis of edible oils

Trends in analytical chemistry : TRAC, 2014
Highlights • We present the first results from a new 60 MHz 1H NMR bench-top spectrometer.• Using chemometrics, we detected hazelnut oil adulteration of olive oil at 11.2%w/w.• Bench-top 60 MHz NMR performs at least as well as FTIR for this type of ...
T. Parker, E. Limer, Andrew D. Watson, M. Defernez, David C. Williamson, E. K. Kemsley   +5 more
semanticscholar   +1 more source

Relative Reactivity of the Metal-Amido versus Metal-Imido Bond in Linked Cp-Amido and Half-Sandwich Complexes of Vanadium [PDF]

, 2008
Treatment of (η5-C5H4C2H4NR)V(N-t-Bu)Me (R = Me, i-Pr) and CpV(N-p-Tol)(N-i-Pr2)Me (Cp = η5-C5H5) with B(C6F5)3 or [Ph3C][B(C6F5)4] results in formation of the corresponding cations, [(η5-C5H4C2H4NR)V(N-t-Bu)]+ and [CpV(N-p-Tol)(N-i-Pr2)]+.
Alonso F., Anderson L. L., Anderson L. L., Bouwkamp M. W., Bytschkov I., Carpentier J.-F., Doye S., Frisch M. J., Gagné M. R., Gagné M. R., Horton A. D., Hughes A. K., Johnson J. S., Li Y., Lorber C., Margl P., Mayer J. M., Müller T. E., Nobis M., Odom A. L., Pohlki F., Pohlki F., Preuss F., Preuss F., Sinnema P. J., Straub B. F., Stubbert B. D., Vanka K., Vatamanu M., Witte P. T., Wu F., Yamada J.   +31 more
core   +5 more sources

Reprogramming Tumor Cell Death via Processing Natural Drug to Carbon Dots Overcomes Collagen Barrier and Activates Antitumor Immunity

Advanced Functional Materials, EarlyView.
A traditional Chinese medicine‐derived carbon dots nanoplatform reprograms tumor cell death from apoptosis to necroptosis, dismantling therapy‐induced collagen barriers and promoting immunogenic death. pH‐responsive hydrogel assembled from carbon dots for localized delivery, this strategy suppresses primary tumors and metastasis, offering a new ...
Zekun Yan, Hongwei Cheng, Yupeng Liu, Wenfeng Xu, Quansheng Cheng, Lingyun Li, Xue Wu, Yingqi Liang, Jing Zhao, Gang Liu, Shaoping Li, Songnan Qu   +11 more
wiley   +1 more source

4-{[(1-Phenyl-1H-pyrazol-3-yl)oxy]methyl}-1,3-dioxolan-2-one

Molbank, 2012
The title compound was obtained by the reaction of tosylated glycerol carbonate with 1-phenyl-1H-pyrazol-3-ol in a good 71% yield. Detailed spectroscopic data (1H-NMR, 13C-NMR, 15N-NMR, IR, MS) are presented.
Algirdas Šačkus, Gytė Vilkauskaitė, Wolfgang Holzer   +2 more
doaj   +1 more source

Importance of Purity Evaluation and the Potential of Quantitative 1H NMR as a Purity Assay

Journal of Medicinal Chemistry, 2014
In any biomedical and chemical context, a truthful description of chemical constitution requires coverage of both structure and purity. This qualification affects all drug molecules, regardless of development stage (early discovery to approved drug) and ...
G. Pauli, Shao‐Nong Chen, C. Simmler, D. Lankin, T. Gödecke, B. Jaki, J. Friesen, J. McAlpine, J. Napolitano   +8 more
semanticscholar   +1 more source

Peripherally-metallated porphyrins: meso-n1-porphyrinyl-platinum(II) complexes of 5,15-diaryl- and 5,10,15-triarylporphyrins [PDF]

, 2002
Attempted metathesis reactions of peripherally-metallated meso-η1-porphyrinylplatinum(II) complexes such as trans-[PtBr(NiDPP)(PPh3)2] (H2DPP = 5,15-diphenylporphyrin) with organolithium reagents fail due to competitive addition at the porphyrin ring ...
Arnold, Dennis, Edwards, Alice, Hartnell, Regan   +2 more
core   +2 more sources

Stoma‐Shell Nanoarchitecture for Enhanced Plasma Confinement Catalysis in Synthesis of Ethanol from CO2

Advanced Functional Materials, EarlyView.
High‐energy electron impact in plasma catalysis often causes excessive dissociation of active intermediates, limiting C2+ product selectivity. To address this challenge, a bio‐inspired stoma‐shell nanoarchitecture is designed to decouple electron impact from catalytic reaction zones.
Nan Zou, Zhiliang Dong, Tsun‐Kong Sham, Xiaonian Li, Ying Zheng, Ting Qiu   +5 more
wiley   +1 more source

4-Bromo-3-methoxy-1-phenyl-1H-pyrazole

Molbank, 2009
The title compound was prepared by treatment of 4-bromo-1-phenyl-1H-pyrazol-3-ol with sodium hydride/methyl iodide in good yield. Detailed spectroscopic data (1H NMR, 13C NMR, 15N NMR, IR, MS) are presented.
Algirdas Šačkus, Wolfgang Holzer, Eglė Arbačiauskienė, Neringa Kleizienė   +3 more
doaj   +1 more source

Synthetic Studies Directed Toward Streptenol D: Enantioselective Preparation of the 3,5-diacetoxy-6\u3cem\u3eE\u3c/em\u3e,8\u3cem\u3eE\u3c/em\u3e-decadiene Segment [PDF]

, 1998
The enantioselective preparation of 2-(3′R,5′R-diacetoxy-6E,8E-decadienyl)-1,3-dioxane, (+)-13, is described. This synthesis of the skeleton of streptenol D utilizes the ability of a diene-complexed (tricarbonyl)iron unit to serve as a protecting and ...
Dasgupta, Bireshwar, Donaldson, William
core   +1 more source