Results 31 to 40 of about 17,281 (293)

2.5-dimensional covalent organic frameworks

Nature Communications
Covalently bonded crystalline substances with micropores have broad applications. Covalent organic frameworks (COFs) are representative of such substances. They have so far been classified into two-dimensional (2D) and three-dimensional (3D) COFs.
Tomoki Kitano, Syunto Goto, Xiaohan Wang, Takayuki Kamihara, Yoshihisa Sei, Yukihito Kondo, Takumi Sannomiya, Hidehiro Uekusa, Yoichi Murakami   +8 more
doaj   +1 more source

Covalent Organic Frameworks—Organic Chemistry Beyond the Molecule

Molecules, 2017
The synthesis of organic molecules has at its core, purity, definitiveness of structure, and the ability to access specific atoms through chemical reactions.
Christian S. Diercks, Markus J. Kalmutzki, Omar M. Yaghi   +2 more
doaj   +1 more source

A novel quinazolinone insulin receptor inhibitor and its synergy with an EGFR inhibitor in glucose‐driven glioblastoma

Molecular Oncology, EarlyView.
The novel styrylquinazolinone‐based molecule W1B effectively suppresses glioblastoma by inhibiting IGF1R and EGFR. In high‐glucose microenvironments driving tumor resistance, W1B acts synergistically with the EGFR inhibitor dacomitinib. This combination safely blocks compensatory survival signaling in zebrafish xenograft models. Showcasing promising in
Patryk Rurka, Wioleta Cieślik, Wojciech Płaziński, Katarzyna Stępnik, Anna Boguszewska‐Czubara, Elżbieta Kot, Robert Musioł, Mateusz Jasica, Anna Mrozek‐Wilczkiewicz, Katarzyna Malarz   +9 more
wiley   +1 more source

Thiophene-based covalent organic frameworks [PDF]

Proceedings of the National Academy of Sciences, 2013
We report the synthesis and characterization of covalent organic frameworks (COFs) incorporating thiophene-based building blocks. We show that these are amenable to reticular synthesis, and that bent ditopic monomers, such as 2,5-thiophenediboronic acid, are defect-prone building blocks that are susceptible to synthetic variations during ...
Bertrand, Guillaume, Michaelis, Vladimir K., Ong, Ta-Chung, Griffin, Robert Guy, Dinca, Mircea   +4 more
openaire   +3 more sources

Designing covalent organic frameworks with Co-O4 atomic sites for efficient CO2 photoreduction

Nature Communications, 2023
A class of inexpensive aminoanthraquinone organic dyes are shown to facilitate visible-light-driven CO_2 reduction. Overall reaction efficiencies were found to be optimal when both electron donating and accepting groups were on a single dye molecule ...
Qian Zhang, Shuaiqi Gao, Yingying Guo, Huiyong Wang, Jishi Wei, X.-M. Su, Hucheng Zhang, Zhimin Liu, Jianji Wang   +8 more
semanticscholar   +1 more source

Chameleon sequences reveal structural effects in proteins representing micelle‐like distribution of hydrophobicity

FEBS Open Bio, EarlyView.
Amino acids sequence of two different proteins with the same sequence (chameleon sequence—black boxes) represent in 3D structure of the proteins different secondary structures: HHHH—helical and BBB—Beta‐structural. The chains folded in water environment adopt different III‐order structures in which the chameleon fragments appear to adopt similar status
Irena Roterman, Katarzyna Stapor, Leszek Konieczny, Krzysztof Gądek, Piotr Nowakowski   +4 more
wiley   +1 more source

Molecular Iodine Capture by Covalent Organic Frameworks

Molecules, 2022
The effective capture and storage of volatile molecular iodine from nuclear waste is of great significance. Covalent organic frameworks (COFs) are a class of extended crystalline porous polymers that possess unique architectures with high surface areas ...
Yuting Yang, Changzheng Tu, Hongju Yin, Jianjun Liu, Feixiang Cheng, Feng Luo   +5 more
doaj   +1 more source

Pyrene-Based Covalent Organic Frameworks for Photocatalytic Hydrogen Peroxide Production.

Angewandte Chemie, 2023
Four highly porous covalent organic frameworks (COFs) containing pyrene units were prepared and explored for photocatalytic H2O2 production. The experimental studies are complemented by density functional theory calculations, proving that the pyrene unit
Jiamin Sun, H. Jena, Chidharth Krishnaraj, Kuber Singh Rawat, Sara Abednatanzi, Jeet Chakraborty, Andreas Laemont, Wanlu Liu, Hui Chen, Yingya Liu, Karen Leus, H. Vrielinck, V. Van Speybroeck, P. Van der Voort   +13 more
semanticscholar   +1 more source

Mass spectrometry based identification of AMP‐O‐Tris generated by Thermococcus onnurineus Cas10

FEBS Open Bio, EarlyView.
Isolated Thermococcus onnurineus Cas10 generates the noncanonical ATP‐derived product AMP‐O‐Tris while in Tris‐containing buffer as identified via mass spectrometry, revealing relaxed nucleophile selectivity under isolated conditions. These findings suggest that multiprotein Csm complex assembly restricts Cas10 reactivity toward canonical cyclic ...
Su‐Jin Lee, Ga Seul Lee, JinHan Kim, Kwang‐Hyun Park, Seong‐Ryung Go, Jeong Hee Moon, Eui‐Jeon Woo   +6 more
wiley   +1 more source

UiO‐66 metal–organic frameworks in biomedicine: From structural tunability to bioimaging, photodiagnostics, and photodynamic cancer therapy

FEBS Open Bio, EarlyView.
UiO‐66(Zr) metal–organic frameworks are chemically stable, biocompatible, and highly tunable nanomaterials. Their modular structure enables controlled drug delivery, multimodal bioimaging, and light‐activated photodynamic therapy, supporting integrated diagnostic and therapeutic (theranostic) applications in cancer and biomedical research.
Veronika Huntošová, Grigorii Rakhalskii, Miroslav Almáši   +2 more
wiley   +1 more source