Results 51 to 60 of about 9,317 (210)
The catalytic power of magnesium chelatase: a benchmark for the AAA(+) ATPases [PDF]
, 2016 In the first committed reaction of chlorophyll biosynthesis, magnesium chelatase couples ATP hydrolysis to the thermodynamically unfavorable Mg(2+) insertion into protoporphyrin IX (ΔGº' of ca. 25-33 kJ/mol).
Adams +28 more
core +1 more source
Advanced Science, EarlyView.Water‐soluble metallophthalocyanines self‐assemble onto the surface of carbon black via π–π interactions, creating highly dispersed and electronically coupled MPcTs/CB, which enables selective CO2‐to‐CO conversion in aqueous media with near‐quantitative Faradaic efficiency and remarkable stability. Optimized flow‐cell operation delivers up to 500 mA cm−
Xiangyu Zhang +10 more
wiley +1 more source
Biomimetic Cell Membrane‐Coated MOFs System for Targeted Cancer Therapy
Advanced Science, EarlyView.Biomimetic MOF‐based drug delivery nanoplatforms synthesized using liposomes or cell membranes as camouflage for multiple cancer therapeutics. ABSTRACT The integration of metal‐organic frameworks (MOFs) with cell membrane coatings has emerged as a revolutionary strategy to enhance the therapeutic efficacy of cancer nanomedicine.
Qilu Wu +6 more
wiley +1 more source
Direct measurement of local oxygen concentration in the bone marrow of live animals [PDF]
, 2014 Characterizing how the microenvironment, or niche, regulates stem cell activity is central to understanding stem cell biology and to developing strategies for therapeutic manipulation of stem cells1. Low oxygen tension (hypoxia) is commonly thought to be
A Mohyeldin +46 more
core +3 more sources
Advanced Science, EarlyView.A hierarchically structured Fe‐BTC‐PMA immobilized 3D‐printed platform is engineered as a robust artificial enzyme for colorimetric glucose sensing. The hybrid architecture efficiently activates H2O2 to drive TMB oxidation. This integrated system enables sensitive, reusable, and scalable detection with enhanced catalytic stability and analytical ...
Paramita Koley +10 more
wiley +1 more source
Evidence For An Unusual Kinetic Phenomenon In The Metallation Of Porphyrins [PDF]
, 1991 Reaction of copper(II) with water soluble porphyrins (H₂porph) in the presence of ethylenediamine shows an unusual and so far unreported kinetic phenomenon that can be explained in terms of supramolecular assembly formation apparently involving all ...
González-Vílchez, F. +2 more
core +2 more sources
Active Site Determination of Heterogenized Molecular Electrocatalysts
Advanced Energy Materials, EarlyView.Here, we develop a methodology to examine the active site availability of immobilized transition‐metal molecular complexes via cyclic voltammetry. By using varying loadings of the molecular complex FeTPP physically immobilized onto Vulcan Carbon, we show the influences of FeTPP/VC ratios on the total number of active sites.
Elena Antoniono +3 more
wiley +1 more source
STM Studies of Synthetic Peptide Monolayers
, 1998 We have used scanning probe microscopy to investigate self-assembled monolayers of chemically synthesized peptides. We find that the peptides form a dense uniform monolayer, above which is found a sparse additional layer.
Bergeron, David J. +4 more
core +2 more sources
Ordered mesoporous porphyrinic carbons with very high electrocatalytic activity for the oxygen reduction reaction [PDF]
, 2013 The high cost of the platinum-based cathode catalysts for the oxygen reduction reaction (ORR) has impeded the widespread application of polymer electrolyte fuel cells.
Adzic, Radoslav R. +13 more
core +1 more source
Fiber‐type soft bioelectronics for wearable and implantable sensing and therapy
BMEMat, EarlyView.Fiber‐type soft bioelectronics are emerging as versatile platforms for wearable and implantable health monitoring and therapeutic applications. These bioelectronics use organic and inorganic matrices combined with advanced fillers, which feature high conductivity, electrochemical sensitivity, softness, and biocompatibility.
Haneul Kim +5 more
wiley +1 more source