Results 31 to 40 of about 41,413 (346)

Reaction of Pyrrolobenzothiazines with Schiff Bases and Carbodiimides: Approach to Angular 6/5/5/5-Tetracyclic Spiroheterocycles

Molecules
1H-Pyrrole-2,3-diones, fused at [e]-side with a heterocycle, are suitable platforms for the synthesis of various angular polycyclic alkaloid-like spiroheterocycles.
Ekaterina A. Lystsova, Anastasia D. Novokshonova, Pavel V. Khramtsov, Alexander S. Novikov, Maksim V. Dmitriev, Andrey N. Maslivets, Ekaterina E. Khramtsova   +6 more
doaj   +1 more source

Carbodiimide-Promoted Olefin Epoxidation with Aqueous Hydrogen Peroxide^†,‡

, 2016
Commercially available carbodiimides in hydroxylic solvents containing hydrogen peroxide with mildly basic or acidic catalysts have been found to promote the epoxidation of olefins.
George Majetich (1903270), Rodgers Hicks (3037977), Patrick McGill (3042861), Guang-ri Sun (2960409)   +3 more
core   +1 more source

Comparison of Fiber Post Bond Strength to Root Canal Dentin Following Chlorhexidine and Carbodiimide Pretreatment [PDF]

Journal of Mashhad Dental School
Background: Fiber post placement is a common practice for restoring endodontically treated teeth with weakened roots. The use of matrix metalloproteinase (MMP) inhibitors has been suggested to enhance the bond strength between fiber posts and root canal ...
Abdolrahim Davari, Farnaz Farahat, Bita Ahadi   +2 more
doaj   +1 more source

A PROMISING MODIFICATION OF THE CARBODIIMIDE METHOD USING AN INSOLUBLE CARBODIIMIDE [PDF]

Chemistry Letters, 1975
Abstract A modified polystyrene-divinylbenzene copolymer, in which ethylcarbodiimidomethyl groups were linked so as to be available as a condensing agent for peptide synthesis, were prepared. This polymer proved of great use in synthesizing some protected peptides without accompanying any troublesome by-product which would otherwise be ...
Hisashi Ito, Norihiro Takamatsu, Iwao Ichikizaki   +2 more
openaire   +1 more source

Carbodiimide Ring-Opening Metathesis Polymerization

, 2023
Controlled incorporation of nitrogen into macromolecular skeletons is a long-standing challenge whose resolution would enable the preparation of soft materials with the scalability of man-made plastics and functionality of Nature’s proteins.
Jozsef Toth (15454176), Aleksandr V. Zhukhovitskiy (2032000), Zian Wang (4952869), Mitchell Maw (12316462), J. Drake Johnson (15454170), Sergei S. Sheiko (1412974), Samuel W. Kaplan (15454173)   +6 more
core   +3 more sources

A one-pot multistep cyclization yielding thiadiazoloimidazole derivatives

Beilstein Journal of Organic Chemistry, 2014
A versatile synthetic procedure is described to prepare the benzimidazole-fused 1,2,4-thiadiazoles 2a–c via a methanesulfonyl chloride initiated multistep cyclization involving the intramolecular reaction of an in-situ generated carbodiimide with a ...
Debabrata Samanta, Anup Rana, Jan W. Bats, Michael Schmittel   +3 more
doaj   +1 more source

Probing of EDC/NHSS-Mediated Covalent Coupling Reaction by the Immobilization of Electrochemically Active Biomolecules

International Journal of Electrochemical Science, 2013
1-Ethyl-3-[3-dimethylaminopropyl]carbodiimide / N-hydroxysulfosuccinimide (EDC/NHSS)-mediated two-step amine coupling reaction is one of most attractive approaches for the elaboration of affinity biosensors.
Ning Xia, Yun Xing, Guifang Wang, Qingqin Feng, Qianqian Chen, Hongmei Feng, Xiaoling Sun, Lin Liu   +7 more
doaj   +1 more source

SYNTHESIS OF 25-HYDROXYVITAMIN D3 CONJUGATE WITH KEYHOLE LIMPET HEMOCYANIN AND OBTAINING OF IMMUNE SERA [PDF]

Biotechnologia Acta, 2015
The study was aimed at obtaining polyclonal antibodies that recognize 25-Hydroxyvitamin D3, for their further specifications and applications in immunochemical test systems of 25-Hydroxyvitamin D3, determination in blood serum.
А. O. Mazanova, I. O. Shymanskyy, D. M. Petukhov, L. B. Drobot, M. M. Veliky, S. V. Komisarenko   +5 more
doaj   +1 more source

Engineered extracellular vesicles enriched with the miR‐214/199a cluster enhance the efficacy of chemotherapy in ovarian cancer

Molecular Oncology, EarlyView.
Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang, Ayesha Alvero, Yi Qin, Mingjin Wang, Alexandra Fox, Yanfeng Li, Michael Millman, Amy Kemper, Gil Mor, Xian Shuang Liu, Michael Chopp, Zheng Gang Zhang, Yi Zhang   +12 more
wiley   +1 more source

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

Advanced 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, Haosen Miao, Weiying Hong, Matteo Palma   +3 more
wiley   +1 more source