Conductive, self-healing, and adhesive hydrogels are of great significance in wearable electronic devices. The most important properties conductive self-healing the efficient recovery both electrical mechanical at room temperature prolonged durability. In this work, we developed a novel double-network hydrogel consisting poly(4-styrene sulfonate-co-methyl-uracil-imidazolium) chloride (PSS-MUI), gelatin, ferric ions (Fe3+). Here, MUI serves as supramolecular crosslinker, while act ionic...

Molecular fluorescent probes are an essential experimental tool in many fields, ranging from biology to chemistry and materials science, study the localization other environmental properties surrounding probe. Thousands of different molecular can be grouped into families according their photophysical properties. This Account focuses on a unique class that distinguishes itself all probes. is termed photoacids, which molecules exhibiting change acid-base transition between ground excited...

Organic-inorganic nanohybrids are becoming popular for their potential biological applications, including diagnosis and treatment of cancerous cells. The motive this study is to synthesise a nanohybrid the therapy colorectal cancer. Here we have developed facile cost-effective synthesis folic acid (FA) templated Fe2O3 nanoparticles with excellent colloidal stability in water using hydrothermal method theranostics applications. attachment FA was confirmed various spectroscopic techniques FTIR...

Abstract A most important endeavor in modern materials’ research is the current shift toward green environmental and sustainable materials. Natural resources are one of attractive building blocks for making environmentally friendly In cases, however, performance nature‐derived materials inferior to carefully designed synthetic This especially true conductive polymers, which topic here. Inspired by natural role proteins mediating protons, their utilization creation a free‐standing transparent...

Bismuth containing nanomaterials recently received increasing attention with respect to environmental applications because of their low cost, high stability and nontoxicity. In this work, Bi–Bi2O2CO3 heterojunctions were fabricated by in-situ decoration Bi nanoparticles on Bi2O2CO3 nanosheets via a simple hydrothermal synthesis approach. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) high-resolution TEM (HRTEM) used confirm the morphology nanosheet-like...

Biological membranes play a major role in diffusing protons on their surfaces between transmembrane protein complexes. The retention of the membrane's surface is commonly described by membrane-associated proton barrier that determines efficiency escaping from to bulk, which correlates with diffusion (PD) dimensionality at surface. Here, we explore biophysical properties and its ability accept light-triggered donor situated support PD around probe. By changing lipid composition temperature,...

Proton transfer (PT) is at the heart of fundamental natural biochemical reactions, e.g. in bioenergetics, where proteins are main proton mediators. PT between two specific points requires a change motive force via alteration acid-base properties. Nature solved this problem primarily by modulating protein structure during process. Here, we introduce light-triggered donor-bridge-acceptor approach for inducing and visualizing directional biosystems, specifically peptides. To do so, synthesize...

Post formation modification of protein-based materials can attenuate the proton conduction efficiency resulting from change in mechanism, charge carrier mobility, concentrations and inner hydration layer.

The fundamental biological process of electron transfer (ET) takes place across proteins with common ET pathways several nanometers. Recent discoveries push this limit and show long-range extracellular over micrometers. Here, we aim in deciphering how protein-bound intramolecular cofactors can facilitate such ET. In contrast to natural systems, our protein-based platform enables us modulate important factors associated a facile manner, as the type cofactor its quantity within protein. We...

Abstract Nanoscale bioimaging is a highly important scientific and technological tool, where fluorescent (FL) proteins, organic molecular dyes, inorganic quantum dots, lately carbon dots are widely used as light emitting biolabels. In this work, new class of visible FL bioorganic nanodots, self‐assembled from short peptides different composition origin, introduced. It shown that the electronic energy spectrum native nonfluorescent peptide nanodots (PNDs) deeply modified upon thermally...

The role of different water states and their interface with a protein microstructure in mediating protons has been investigated using several approaches, concluding on the importance protein/water proton transport.

Time-resolved fluorescence have used to explore the inner surface and solvation dynamics within protein hydrogels assisting in rationalizing their drug binding release capabilities.

Abstract Light is a convenient source of energy and the heart light‐harvesting natural systems devices. Here, we show light‐modulation both chemical nature ionic charge carrier concentration within protein‐based biopolymer that was covalently functionalized with photoacids or photobases. We explore capability biopolymer‐tethered photobases to undergo excited‐state proton transfer capture, respectively. Electrical measurements photoacid‐ photobase‐functionalized biopolymers exhibit an...

Many efforts have been directed towards elucidating the nitrogenase structure, its biocatalytic activity, and methods to artificially activate it by external stimuli. Here, we investigated how semiconductor nanoparticles (NPs) with sizes ranging between 2.3-3.5 nm form nano-biohybrids enzyme enable photoinduced activity. We examined two homogenously synthesized quantum dots (QDs), CdS, CdSe, variants, wild-type a cysteine-mutated. show that cysteine-mutated variant does not enhance hydrogen...

Raw casein proteins can be used for polymerization into flexible and strong bioplastics, whereas the sulfonation of backbone results in making ion-conductive bioplastics.

Much effort is being employed for designing "green" environmental emissive materials that are capable of color-tuning, i.e., down-converting the emission, and white-light generation (WLG). Here, we introduce a protein-based elastomer can noncovalently bind variety chromophores while preventing their aggregation. Such binding capabilities unique to albumin-based use here in process refer as "molecular doping". In first part this study, explore energy transfer across five different within...

Abstract Biological membranes play a major role in diffusing protons on their surfaces between transmembrane protein complexes. The retention of the membrane’s surface is commonly described by membrane-associated proton barrier that determines efficiency escaping from to bulk, which correlates with diffusion (PD) dimensionality at surface. Here, we explore biophysical properties and its ability accept light-triggered donor situated support PD around probe. By changing lipid composition...

The fluorescence efficiency of excited molecules can be enhanced by many external factors. Here, we showcase a surprising phenomenon whereby light is used as gating source to increase the organic cages composed biphenyl subunits. We show that enhancement not due structural changes or ground-state events. Cryo-fluorescence measurements and kinetic studies suggest restriction phenyl-based structures in state, leading increased fluorescence, which also supported time-resolved measurements....

Light is a convenient source of energy and the heart light-harvesting natural systems devices. Here, we show light-modulation both chemical nature ionic charge carrier concentration within protein-based biopolymer that was covalently functionalized with photoacids or photobases. Using steady-state time-resolved fluorescence, explore capability biopolymer-tethered photobases to undergo excited-state proton transfer capture (ESPT ESPC), respectively. Various electrical measurements photoacid-...

Correction for ‘Exploring long-range proton conduction, the conduction mechanism and inner hydration state of protein biopolymers’ by Somen Mondal <italic>et al.</italic>, <italic>Chem. Sci.</italic>, 2020, <bold>11</bold>, 3547–3556, DOI: 10.1039/C9SC04392F.

Abstract Light is a convenient source of energy and the heart light‐harvesting natural systems devices. Here, we show light‐modulation both chemical nature ionic charge carrier concentration within protein‐based biopolymer that was covalently functionalized with photoacids or photobases. We explore capability biopolymer‐tethered photobases to undergo excited‐state proton transfer capture, respectively. Electrical measurements photoacid‐ photobase‐functionalized biopolymers exhibit an...

The Cover Feature shows how nanomaterial sizes affect the light-induced electron transfer process with nitrogenase enzyme. When 2.3 nm CdSe quantum dots are utilized for photocatalytic hydrogen generation process, an 8-fold increase can be gained as compared larger-sized dots. Additionally, cysteine-mutated at acceptor side (P-cluster) does not lead to enhanced catalytic performance. More information found in Communication by M. Meirovich et al.

Light is a convenient source of energy and the heart light-harvesting natural systems devices. Here, we show light-modulation both chemical nature ionic charge carrier concentration within protein-based biopolymer that was covalently functionalized with photoacids or photobases. Using steady-state time-resolved fluorescence, explore capability biopolymer-tethered photobases to undergo excited-state proton transfer capture (ESPT ESPC), respectively. Various electrical measurements photoacid-...