The construction of supramolecular networks with novel crosslinks is of great significance in expanding their chemical structures and exploring their advanced functions. Herein, we prepare a type of [2]catenane-cored supramolecular networks based on the crosslinking of polyethylene glycol (PEG) using a heterometallic [2]catenane unit. By adjusting the molecular weight of PEG, the solubility of the networks can be tuned and gels are formed using low molecular weight PEG. The introduction of heterometallic [2]catenane offers the networks good antibacterial properties owing to the synergistic antimicrobial activity of Pt(II) and Cu(I) ions in the [2]catenane. This study provides a simple and efficient strategy for constructing supramolecular networks with topological crosslinks as antibacterial materials, which will promote the structural design and biological applications of supramolecular networks.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/chem.202403595 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
An innovative semiconducting Ni(II)-metallogel based robust random access memory (RRAM) device for advanced flexible electronics applications.
Sci Rep
December 2024
Department of Physics, Indian Institute of Technology, Patna, 801106, Bihar, India.
A highly effective method for creating a supramolecular metallogel of Ni(II) ions (NiA-TA) has been developed in our work. This approach uses benzene-1,3,5-tricarboxylic acid as a low molecular weight gelator (LMWG) in DMF solvent. Rheological studies assessed the mechanical properties of the Ni(II)-metallogel, revealing its angular frequency response and thixotropic behaviour.
View Article and Find Full Text PDFPolymer Entanglement-Induced Hydrogel Adhesion.
Gels
December 2024
Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Hydrogels are widely used in the field of adhesive materials. However, hydrogel adhesion has previously required the covalent graft of supramolecular groups on polymeric chains. In contrast to that, here, a hydrogel adhesion induced by covalent polymer entanglement between two hydrogel networks was reported.
View Article and Find Full Text PDFL-Cysteine/Silver Nitrate/Iodate Anions System: Peculiarities of Supramolecular Gel Formation with and Without Visible-Light Exposure.
Gels
December 2024
Department of Biotechnology, Chemistry and Standardization, Tver State Technical University, A. Nikitina Str., Building 22, Tver 170026, Russia.
In this study, novel anion photo-responsive supramolecular hydrogels based on cysteine-silver sol (CSS) and iodate anions (IO) were prepared. The peculiarities of the self-assembly process of gel formation in the dark and under visible-light exposure were studied using a complex of modern physico-chemical methods of analysis, including viscosimetry, UV spectroscopy, dynamic light scattering, electrophoretic light scattering, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray photoelectron spectroscopy. In the dark phase, the formation of weak snot-like gels takes place in a quite narrow IO ion concentration range.
View Article and Find Full Text PDFAttenuation of Pathway Complexity in Arginine-Rich Peptide with Polydopamine.
Small
December 2024
Chemical Biology Unit, Institute of Nano Science and Technology (INST), Sector 81, Mohali, Punjab, 140306, India.
Dynamic peptide networks represent an attractive structural space of supramolecular polymers in the realm of emergent complexity. Point mutations in the peptide sequence exert profound effects over the landscapes of self-assembly with an intricate interplay among the structure-function relationships. Herein, the pathway complexity of an arginine-rich peptide is studied, FmocVFFARR derived by the mutation of minimalist amyloid-inspired peptide amphiphile FmocVFFAKK, thereby focusing on its pathway-dependent self-assembly behavior.
View Article and Find Full Text PDFA novel self-assembling peptide nanofiber hydrogel with glucagon-like peptide-1 functionality enhances islet survival to improve islet transplantation outcome in diabetes treatment.
J Nanobiotechnology
December 2024
NHC Key Laboratory for Critical Care Medicine, School of Medicine, Tianjin First Central Hospital, Research Institute of Transplant Medicine, Organ Transplant Center, Nankai University, Tianjin, 300071, China.
Islet transplantation is a promising therapy for diabetes, yet the limited survival and functionality of transplanted islet grafts hinder optimal outcomes. Glucagon-like peptide-1 (GLP-1), an endogenous hormone, has shown potential to enhance islet survival and function; however, its systemic administration can result in poor localization and undesirable side effects. To address these challenges, we developed a novel peptide-based nanofiber hydrogel incorporating GLP-1 functionality for localized delivery.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!