Reversible Light-Controlled Sol-Gel Transition of an Ionic Hydrogel.

The understanding of light-mediated control in advanced materials critically depends on the deployment of highly efficient azobenzene-based photoswitches. A key challenge lies in optimizing their light reactivity and developing water-soluble variants that can function as hydrogel cross-linkers. This study represents the design and synthesis of a water-soluble, cationic azobenzene derivative, which serves as a versatile cross-linker to develop a photoresponsive azobenzene composed of sodium salt of poly-2-acrylamido-2-methylpropanesulfonic acid-based [Azo(+)@pSAMPS(-)] hydrogels.

Synergistic Effect of Atomic-Scale Interface Engineering and Built-In Electric Field at S-Scheme BiWO/ZnInS Heterojunctions for Photocatalytic Hydrogen Evolution.

A novel S-scheme heterojunctions are fabricated via in situ growth of ZnInS (ZIS) nanoflakes on BiWO (BWO) assembled nanorods, forming BiWO/ZnInS (BWIS) heterostructure with a nanoflake-assembled morphology. The resulting BWIS architecture demonstrated significantly enhanced light-harvesting capacity, enhanced photocurrent response, and photocatalytic hydrogen evolution activity. The optimized BWIS system exhibited a remarkable photocatalytic hydrogen generation rate of 392 µmol.

Landscaping DNA binding potential of piperine derivatives by computational and biophysical methods.

Piperine, the alkaloid from Black pepper, is known for its wide range of pharmacological effects. The DNA binding activity of piperine was reported earlier. In this work, we explore the DNA duplex binding properties of four piperine derivatives, piperonal, piperonyl alcohol, piperonylic acid, and piperic acid using biophysical and computational techniques.

An Integrated Polysaccharide Hydrogel with Versatile Fluorescence Responses through Noncovalent Reformation of Gel Aggregation and for Bioimaging.

Functionalized hydrogels, with their unique and adaptable structures, have attracted significant attention in materials and biomaterials research. Fluorescent hydrogels are particularly noteworthy for their sensing capabilities and ability to mimic cellular matrices, facilitating cell infiltration and tracking of drug delivery. Structural elucidation of hydrogels is crucial for understanding their responses to stimuli such as the pH, temperature, and solvents.

Anti-MRSA activity of chlorophenyl pyrrolo benzodiazepines compound.

Antibiotic resistant is the major concern in public health to control the infectious diseases. MRSA (Methicillin-resistant Staphylococcus aureus) is a significant concern in healthcare settings due to its resistance to many antibiotics, including methicillin and other beta-lactams. MRSA infection difficult to treat and increases the risk of complications.

Combined in vitro/in silico approaches, molecular dynamics simulations and safety assessment of the multifunctional properties of thymol and carvacrol: A comparative insight.

Bioactive compounds derived from medicinal plants have acquired immense attentiveness in drug discovery and development. The present study investigated in vitro and predicted in silico the antibacterial, antifungal, and antiviral properties of thymol and carvacrol, and assessed their safety. The performed microbiological assays against Pseudomonas aeruginosa, Escherichia coli, Salmonella enterica Typhimurium revealed that the minimal inhibitory concentration values ranged from (0.

In Silico Identification of a Potent Arsenic Based Approved Drug Darinaparsin against SARS-CoV-2: Inhibitor of RNA Dependent RNA polymerase (RdRp) and Essential Proteases.

Background: COVID-19 is a life-threatening novel corona viral infection to our civilization and spreading rapidly. Tremendousefforts have been made by the researchers to search for a drug to control SARS-CoV-2.

Methods: Here, a series of arsenical derivatives were optimized and analyzed with in silico study to search the inhibitor of RNA dependent RNA polymerase (RdRp), the major replication factor of SARS-CoV-2.

Theoretical analysis of bacterial efflux pumps inhibitors: Strategies in-search of competent molecules and develop next.

Multi-drug resistance (MDR) bacteria pose a significant threat to our ability to effectively treat infections due to the development of several antibiotic resistant mechanisms. A major component in the development of the MDR phenotype in MDR bacteria is over expression of different-type of efflux pumps, which actively pump out antibacterial agents and biocides from the periplasm to the outside of the cell. Consequently, bacterial efflux pumps are an important target for developing novel antibacterial treatments.

Synthesis, characterization and nucleic acid binding studies of mononuclear copper(II) complexes derived from azo containing O, O donor ligands.

Azo linked salicyldehyde and a new 2-hydroxy acetophenone based ligands (HL and HL) with their copper(II) complexes [Cu(L)] (1) and [Cu(L)] (2) were synthesized and characterized by spectroscopic methods such as H, 13C NMR, UV-Vis spectroscopy and elemental analyses. Calculation based on Density Functional Theory (DFT), have been performed to obtain optimized structures. Binding studies of these copper (II) complexes with calf thymus DNA (ct-DNA) and torula yeast RNA (t-RNA) were analyzed by absorption spectra, emission spectra and Viscosity studies and Molecular Docking techniques.

On the making of aromatic organometallic superalkali complexes.

Superalkalis are complexes that have a lower ionization energy than that of the corresponding alkali and alkaline earth metals. Based on First Principles calculations, the plausible existence of a superalkali complex consisting of an all-metal aromatic trigonal Au3 core coupled with pyridine (Py) and imidazole (IMD) ligands is suggested. The calculated ionization energy (IE) values of the subsequent organometallic complexes, Au3(Py)3 and Au3(IMD)3, are low, thereby mimicking the usual behavior of a superalkali.

N, N'-Olefin functionalized bis-imidazolium gold(I) salt is an efficient candidate to control keratitis-associated eye infection.

Keratitis treatment has become more complicated due to the emergence of bacterial or fungal pathogens with enhanced antibiotic resistance. The pharmaceutical applications of N-heterocyclic carbene complexes have received remarkable attention due to their antimicrobial properties. In this paper, the new precursor, 3,3'-(p-phenylenedimethylene) bis{1-(2- methyl-allyl)imidazolium} bromide (1a) and its analogous PF6 salt (1b) were synthesized.