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Acid-Induced in Situ Phase Separation and Percolation for Constructing Bi-Continuous Phase Hydrogel Electrodes With Motion-Insensitive Property.
Adv Mater
December 2024
State Key Laboratory of Biochemical Engineering and Key Laboratory of Biopharmaceutical Preparation and Delivery, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China.
Conducting polymer hydrogels have gained attention in the bioelectronics field due to their unique combination of biocompatibility and customizable mechanical properties. However, achieving both excellent conductivity and mechanical strength in a hydrogel remains a significant challenge, primarily because of the inherent conflict between the hydrophobic nature of conducting polymers and the hydrophilic characteristics of hydrogels. To address this issue, this work proposes a simple one-step acid-induced approach that not only promotes the gelation of hydrophilic polymers but also facilitates the in situ phase separation of hydrophobic conducting polymers under mild conditions.
View Article and Find Full Text PDFSimple model for the fracture of a polymer chain: Single-bond potential of mean force and tension-based rate constants for chain rupture.
J Chem Phys
November 2024
School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Street, Zografou Campus, 157 80 Athens, Greece.
A linear chain of N particles connected by Morse bonds with periodic boundaries in a Brownian bath is considered as a model for polymer fracture. The potential of mean force (pomf) with respect to the length of a bond and its energy and entropic components are computed via Langevin Dynamics simulations at various chain elongations λ > 1. A narrow range of λ values is identified over which equilibrium is established between an intact (i) and a fractured (f) state over a pomf barrier.
View Article and Find Full Text PDFSelective Cross-Metathesis Versus Ring-Closing Metathesis of Terpenes, Taking the Path Less Travelled.
Angew Chem Int Ed Engl
December 2024
Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva, 84105, Israel.
A diiodo ruthenium olefin metathesis pre-catalyst was employed to achieve remarkably selective cross-metathesis reactions of prenylated 1,6-dienes, effectively overcoming the entropically favored intramolecular ring-closing metathesis. This reaction was investigated using Density Functional Theory (DFT) computations and fine-tuned through the application of a Design of Experiments (DoE) approach. The potential of this innovative process was demonstrated through the unprecedented functionalization of various terpene natural products via cross-metathesis, resulting in the synthesis of new derivatives in a single step.
View Article and Find Full Text PDFTwo-Step Chirality Transfer to Twisted Assemblies: Synergistic Interplay of Chiral and Aggregation Interactions.
ACS Nano
October 2024
College of Chemistry, Zhengzhou University, Zhengzhou 450001, China.
Chirality plays a pivotal role in both the origin of life and the self-assembly of materials. However, the governing principles behind chirality transfer in hierarchical self-assembly across multiple length scales remain elusive. Here, we propose a concise and versatile simulation strategy using the patchy particle chain model to investigate the self-assembly of rods interacting through chiral and aggregation interactions.
View Article and Find Full Text PDFEnergy level as a theranostic factor for successful therapy of tissue injuries with polyphosphate: the triad metabolic energy - mechanical energy - heat.
Theranostics
September 2024
ERC Advanced Investigator Grant Research Group at the Institute for Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, Duesbergweg 6, 55128 Mainz, GERMANY.
Tissue regeneration of skin and bone is an energy-intensive, ATP-consuming process that, if impaired, can lead to the development of chronic clinical pictures. ATP levels in the extracellular space including the exudate of wounds, especially chronic wounds, are low. This deficiency can be compensated by inorganic polyphosphate (polyP) supplied the blood platelets to the regenerating site.
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