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14,919 results

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Page 1
Self-healing behavior of superhard covalent bond materials.
Qiu K, Li X, Li Y, Yue Y, Guo L. Qiu K, et al. Chem Soc Rev. 2025 May 6;54(9):4391-4418. doi: 10.1039/d4cs01182a. Chem Soc Rev. 2025. PMID: 40125601 Review.
In recent years, superhard covalently bonded materials have drawn a great deal of attention due to their excellent mechanical properties and potential applications in various fields. ...We also provide an overview of the progress in the self-healing behavior of superhard …
In recent years, superhard covalently bonded materials have drawn a great deal of attention due to their excellent mechanical propert …
Modeling covalent-modifier drugs.
Awoonor-Williams E, Walsh AG, Rowley CN. Awoonor-Williams E, et al. Biochim Biophys Acta Proteins Proteom. 2017 Nov;1865(11 Pt B):1664-1675. doi: 10.1016/j.bbapap.2017.05.009. Epub 2017 May 18. Biochim Biophys Acta Proteins Proteom. 2017. PMID: 28528876 Review.
In this review, we present a summary of how computer modeling has been used in the development of covalent-modifier drugs. Covalent-modifier drugs bind by forming a chemical bond with their target. This covalent binding can improve the selectivity of t …
In this review, we present a summary of how computer modeling has been used in the development of covalent-modifier drugs. Covalen …
Covalent Bond between the Lys-255 Residue and the Main Chain Is Responsible for Stable Retinal Chromophore Binding and Sodium-Pumping Activity of Krokinobacter Rhodopsin 2.
Ochiai S, Ichikawa Y, Tomida S, Furutani Y. Ochiai S, et al. Biochemistry. 2023 Jun 20;62(12):1849-1857. doi: 10.1021/acs.biochem.3c00168. Epub 2023 May 27. Biochemistry. 2023. PMID: 37243673
Bacteriorhodopsin (BR) variants lacking a covalent bond between the side chain of Lys-216 and the main chain formed purple pigments and exhibited a proton-pumping function. Therefore, the covalent bond linking the lysine residue and the protein backbon …
Bacteriorhodopsin (BR) variants lacking a covalent bond between the side chain of Lys-216 and the main chain formed purple pig …
What's in a covalent bond? On the role and formation of covalently bound flavin cofactors.
Heuts DP, Scrutton NS, McIntire WS, Fraaije MW. Heuts DP, et al. FEBS J. 2009 Jul;276(13):3405-27. doi: 10.1111/j.1742-4658.2009.07053.x. Epub 2009 May 5. FEBS J. 2009. PMID: 19438712 Free article. Review.
These cofactors may be bound to the enzyme in a noncovalent or covalent manner. Although most flavoproteins contain a noncovalently bound flavin cofactor (FMN or FAD), a large number have these cofactors covalently linked to the polypeptide chain. ...These endeavors …
These cofactors may be bound to the enzyme in a noncovalent or covalent manner. Although most flavoproteins contain a noncovalently b …
Plant silicon-cell wall complexes: Identification, model of covalent bond formation and biofunction.
Sheng H, Chen S. Sheng H, et al. Plant Physiol Biochem. 2020 Oct;155:13-19. doi: 10.1016/j.plaphy.2020.07.020. Epub 2020 Jul 24. Plant Physiol Biochem. 2020. PMID: 32736240 Review.
Numerous discoveries have shown that in addition to non-covalent interactions through amorphous silica, Si can form covalent bonds with plant cell wall components such as hemicelluloses, pectin and lignin. ...This review discusses the existing research on the discov …
Numerous discoveries have shown that in addition to non-covalent interactions through amorphous silica, Si can form covalent b …
How strong is a covalent bond?
Grandbois M, Beyer M, Rief M, Clausen-Schaumann H, Gaub HE. Grandbois M, et al. Science. 1999 Mar 12;283(5408):1727-30. doi: 10.1126/science.283.5408.1727. Science. 1999. PMID: 10073936
The rupture force of single covalent bonds under an external load was measured with an atomic force microscope (AFM). ...Bond rupture probability calculations that were based on density functional theory corroborate the measured values....
The rupture force of single covalent bonds under an external load was measured with an atomic force microscope (AFM). ...Bond …
Covalent bond shortening and distortion induced by pressurization of thorium, uranium, and neptunium tetrakis aryloxides.
Shephard JJ, Berryman VEJ, Ochiai T, Walter O, Price AN, Warren MR, Arnold PL, Kaltsoyannis N, Parsons S. Shephard JJ, et al. Nat Commun. 2022 Oct 7;13(1):5923. doi: 10.1038/s41467-022-33459-7. Nat Commun. 2022. PMID: 36207297 Free PMC article.
Covalency involving the 5f orbitals is regularly invoked to explain the reactivity, structure and spectroscopic properties of the actinides, but the ionic versus covalent nature of metal-ligand bonding in actinide complexes remains controversial. ...Electronic struc …
Covalency involving the 5f orbitals is regularly invoked to explain the reactivity, structure and spectroscopic properties of the act …
Demarcating Noncovalent and Covalent Bond Territories: Imine-CO(2) Complexes and Cooperative CO(2) Capture.
Anila S, Suresh CH, Schaefer HF 3rd. Anila S, et al. J Phys Chem A. 2022 Aug 4;126(30):4952-4961. doi: 10.1021/acs.jpca.2c03221. Epub 2022 Jul 21. J Phys Chem A. 2022. PMID: 35862882
Chemical bond territory is rich with covalently bonded molecules wherein a strong bond is formed by equal or unequal sharing of a quantum of electrons. ...Cluster formation of XN with CO(2) reinforces the interaction between them, and all become covalent …
Chemical bond territory is rich with covalently bonded molecules wherein a strong bond is formed by equal or unequal sh …
Studying noncovalent or covalent bond problem between smoothened and cholesterol by molecular dynamics simulation and Markov state model.
Feng L, Pérez-Sánchez H, Bai Q. Feng L, et al. Phys Chem Chem Phys. 2022 Aug 17;24(32):19564-19575. doi: 10.1039/d2cp01453j. Phys Chem Chem Phys. 2022. PMID: 35942902
The crystal structure of SMO shows cholesterol interacts with residue Asp95 via the noncovalent bond. However, some studies indicate that cholesterol covalently binds to residue Asp95 of SMO. ...The MSM results showed the noncovalent-bound cholesterol had more dynam …
The crystal structure of SMO shows cholesterol interacts with residue Asp95 via the noncovalent bond. However, some studies indicate …
Photon-Modulated Bond Covalency of [Sm(II)(eta(9)-C(9)H(9))(2)].
Vitova T, Ramanantoanina H, Schacherl B, Münzfeld L, Hauser A, Ekanayake RSK, Reitz CY, Prüßmann T, Neill TS, Göttlicher J, Steininger R, Saveleva VA, Haverkort MW, Roesky PW. Vitova T, et al. J Am Chem Soc. 2024 Jul 31;146(30):20577-20583. doi: 10.1021/jacs.3c13934. Epub 2024 Jul 5. J Am Chem Soc. 2024. PMID: 38968342
Lanthanides are widely assumed not to form covalent bonds due to the localized nature of their 4f valence electrons. This work demonstrates that the ionic bond of Sm(II) with cyclononatetraenyl (eta(9)-C(9)H(9)(-)) in [Sm(eta(9)-C(9)H(9))(2)] can be modulated and be …
Lanthanides are widely assumed not to form covalent bonds due to the localized nature of their 4f valence electrons. This work demons …
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