A Simple Pathway toward Quantitative Modification of Polybutadiene:  A New Approach to Thermoreversible Cross-Linking Rubber Comprising Supramolecular Hydrogen-Bonding Networks

2005 ◽  
Vol 38 (13) ◽  
pp. 5575-5580 ◽  
Author(s):  
Chih-Cheng Peng ◽  
Volker Abetz
Keyword(s):  
Hydrogen Bonding ◽  
Cross Linking ◽  
New Approach ◽  
Simple Pathway ◽  
Hydrogen Bonding Networks ◽  
Quantitative Modification

Themoreversible Cross-Linking Rubber Using Supramolecular Hydrogen-Bonding Networks

2001 ◽  
Vol 34 (26) ◽  
pp. 9201-9204 ◽  
Author(s):  
Keisuke Chino ◽  
Makoto Ashiura
Keyword(s):  
Hydrogen Bonding ◽  
Cross Linking ◽  
Hydrogen Bonding Networks

Novel Hydrogen-Bonding Cross-Linking Aggregation-Induced Emission: Water as a Fluorescent “Ribbon” Detected in a Wide Range

2017 ◽  
Vol 9 (18) ◽  
pp. 15744-15757 ◽  
Author(s):  
Ani Wang ◽  
Ruiqing Fan ◽  
Yuwei Dong ◽  
Yang Song ◽  
Yuze Zhou ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Cross Linking ◽  
Aggregation Induced Emission ◽  
Wide Range

scholarly journals The Multiple Hydrogen-Bonding Networks of Polyol Ribitol

2018 ◽  
Vol 24 (51) ◽  
pp. 13408-13412 ◽  
Author(s):  
Isabel Peña ◽  
Maria Eugenia Sanz ◽  
Elena R. Alonso ◽  
José L. Alonso
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonding Networks ◽  
Multiple Hydrogen Bonding

Topological crystallography of gas hydrates

2015 ◽  
Vol 71 (4) ◽  
pp. 444-450 ◽  
Author(s):  
Sergey V. Gudkovskikh ◽  
Mikhail V. Kirov
Keyword(s):  
Hydrogen Bonding ◽  
Gas Hydrates ◽  
Periodic Boundary ◽  
Periodic Boundary Conditions ◽  
Hexagonal Structure ◽  
New Approach ◽  
Quotient Graphs ◽  
Disordered Structure ◽  
Unit Cells ◽  
Cubic Structure

A new approach to the investigation of the proton-disordered structure of clathrate hydrates is presented. This approach is based on topological crystallography. The quotient graphs were built for the unit cells of the cubic structure I and the hexagonal structure H. This is a very convenient way to represent the topology of a hydrogen-bonding network under periodic boundary conditions. The exact proton configuration statistics for the unit cells of structure I and structure H were obtained using the quotient graphs. In addition, the statistical analysis of the proton transfer along hydrogen-bonded chains was carried out.

Small Molecule-Based Fluorescent Organic Nanoassemblies with Strong Hydrogen Bonding Networks for Fine Tuning and Monitoring Drug Delivery in Cancer Cells

Small ◽  
2018 ◽  
Vol 14 (38) ◽  
pp. 1802307 ◽  
Author(s):  
Joanna Boucard ◽  
Camille Linot ◽  
Thibaut Blondy ◽  
Steven Nedellec ◽  
Philippe Hulin ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Hydrogen Bonding ◽  
Cancer Cells ◽  
Small Molecule ◽  
Fine Tuning ◽  
Monitoring Drug ◽  
Hydrogen Bonding Networks

Hydrogen-bonding networks of purine derivatives and their bilayers for guest intercalation

CrystEngComm ◽  
2016 ◽  
Vol 18 (1) ◽  
pp. 62-67
Author(s):  
Yoona Jang ◽  
Seo Yeon Yoo ◽  
Hye Rin Gu ◽  
Yu Jin Lee ◽  
Young Shin Cha ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Two Dimensional ◽  
Purine Derivatives ◽  
Guest Molecules ◽  
Π Interactions ◽  
Hydrogen Bonding Networks ◽  
Hydrogen Bonded

6-Chloro-9-propyl-purin-2-amine (pr-GCl) forms two-dimensional hydrogen-bonded networks which in turn stack via π–π interactions, leading to the formation of bilayers that can accommodate organic guest molecules.

scholarly journals Improving the Substrate Affinity and Catalytic Efficiency of β-Glucosidase Bgl3A from Talaromyces leycettanus JCM12802 by Rational Design

Biomolecules ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1882
Author(s):  
Wei Xia ◽  
Yingguo Bai ◽  
Pengjun Shi
Keyword(s):  
Hydrogen Bonding ◽  
Rational Design ◽  
Substrate Binding ◽  
Enzymatic Saccharification ◽  
Catalytic Efficiency ◽  
Binding Pocket ◽  
Glycoside Hydrolases ◽  
Cellulosic Biomass ◽  
Substrate Affinity ◽  
Hydrogen Bonding Networks

Improving the substrate affinity and catalytic efficiency of β-glucosidase is necessary for better performance in the enzymatic saccharification of cellulosic biomass because of its ability to prevent cellobiose inhibition on cellulases. Bgl3A from Talaromyces leycettanus JCM12802, identified in our previous work, was considered a suitable candidate enzyme for efficient cellulose saccharification with higher catalytic efficiency on the natural substrate cellobiose compared with other β-glucosidase but showed insufficient substrate affinity. In this work, hydrophobic stacking interaction and hydrogen-bonding networks in the active center of Bgl3A were analyzed and rationally designed to strengthen substrate binding. Three vital residues, Met36, Phe66, and Glu168, which were supposed to influence substrate binding by stabilizing adjacent binding site, were chosen for mutagenesis. The results indicated that strengthening the hydrophobic interaction between stacking aromatic residue and the substrate, and stabilizing the hydrogen-bonding networks in the binding pocket could contribute to the stabilized substrate combination. Four dominant mutants, M36E, M36N, F66Y, and E168Q with significantly lower Km values and 1.4–2.3-fold catalytic efficiencies, were obtained. These findings may provide a valuable reference for the design of other β-glucosidases and even glycoside hydrolases.

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