Results 31 to 40 of about 5,486 (323)

DNA‐Templated 2D Heterostructures as Phototriggered Dynamic Nanohybrids: From Releasing Molecular Loads to Controlling Enzyme Biocatalytic Function

open access: yesAdvanced Functional Materials, EarlyView.
DNA strands are employed both as dynamic linkers and nanoscale templates for the integration of Ag2S nanoparticles on MoS2, which in turn imparted photothermal responsiveness; this feature permits the selective cargo (fluorophore, quantum dots or an enzyme) release from the MoS2 surface in response to local heat induced by light irradiation.
Kai Chen   +3 more
wiley   +1 more source

Editorial, Vol. 3, issue 1 (2016): Submissions between August, 2015 – February, 2016

open access: yesJournal of the Turkish Chemical Society, Section A: Chemistry, 2017
Hello and welcome to our journal, which encompasses all chemical sub-disciplines and distributes, free of charge, with an open-access approach throughout the world.
Hasan KÜÇÜKBAY
doaj   +1 more source

Nitrogen-15 nuclear magnetic resonance spectroscopy. Carbodiimides [PDF]

open access: yes, 1978
High-resolution, 18.25-MHz nitrogen-15 NMR spectra of several carbodiimides (1) have been obtained at the natural-abundance level. The high-field positions of the ^(15)N resonances of these substances are discussed in terms of two different shielding ...
Roberts, John D., Yavari, Issa
core  

Carbodiimides as catalysts for the reduction of CO2 with boranes

open access: yes, 2018
Carbodiimides catalyse the reduction of CO2 with H-BBN and BH3·SMe2 under mild conditions to give mainly boron methoxide derivatives.
Ramos, Alberto   +11 more
core   +1 more source

Electrochemical Synthesis of Carbodiimides via Metal/Oxidant-Free Oxidative Cross-Coupling of Amines and Isocyanides

open access: yes, 2020
This work discloses an electrochemical oxidative cross-coupling of amines with aryl and aliphatic isocyanides. In an undivided cell, the reaction proceeds without involving any transition-metal catalyst, oxidant, or toxic reagents providing carbodiimides
Ved Prakash Verma   +9 more
core   +1 more source

Strain‐Programmable Luminescent Adhesive Patch With Tartrazine‐Mediated Optical Skin Clearing for Photochemical Tissue Bonding

open access: yesAdvanced Functional Materials, EarlyView.
We propose a suture‐complementary approach that integrates optical skin clearing with a strain‐programmable luminescent adhesive patch. Hyaluronic acid promotes transdermal delivery of tartrazine to improve optical clearing and stabilizes its interaction with a photosensitizer. Optical clearing increases the penetration depth of visible light into skin,
Seong‐Jong Kim   +6 more
wiley   +1 more source

Unveiling the quaternary carbodiimide symphony: harmonizing green chemistry in peptide synthesis

open access: yesGreen Chemistry Letters and Reviews
Although N-ethyl-N’-(3-dimethylaminopropyl) carbodiimide hydrochloride (EDC.HCl) is a common reagent in peptide synthesis, it presents two drawbacks. First of all, it is in a tautomerism equilibrium with cyclic form that it is not productive.
Hlobisile Nzama   +5 more
doaj   +1 more source

Multiplex Modular Nanorobotic Systems with Catalytic Activity under Magnetic Navigation

open access: yesAdvanced Functional Materials, EarlyView.
We present modular nanorobots composed of a magnetic propulsion module and different extension modules carrying functional activities, assembled via DNA base pairing. The system integrates propulsion, optical tracking, enzymatic catalysis, and cell docking in a programmable manner.
Voichita Mihali   +7 more
wiley   +1 more source

New models for the study of the racemization mechanism of carbodiimides. Synthesis and structure (X-ray crystallography and H-1NMR) of cyclic carbodiimides

open access: yes, 1996
The crystal and molecular structure of carbodiimides 2 (5,6,18,19-tetradehydro-5,12,13,18,25,26- hexahydrotetrabenzo[d,h,m,q][1,3,10,12]tetraazacyclooctadecine) and 3 (8,10,22,24-tetraazapentacyclo- [23.3.1.13,7.111,15.117,21]dotriaconta-1(29),3,5,7(32)
Server-Carrió, Juan   +7 more
core   +1 more source

Coagulative Granular Hydrogels with an Enzyme Catalyzed Fibrin Network for Endogenous Tissue Regeneration

open access: yesAdvanced Healthcare Materials, EarlyView.
Coagulative granular hydrogels are composed of packed thrombin‐functionalized microgels that catalyze the conversion of fibrinogen into a secondary fibrin network, filling the interstitial voids. This bio‐inspired approach stabilizes the biomaterial to match the robustness of bulk hydrogels without compromising injectability, mimicking the initial ...
Zhipeng Deng   +16 more
wiley   +1 more source

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