This paper provides direct evidence to support the role of a capping agent in controlling evolution Ag seeds into nanocrystals with different shapes. Starting single-crystal (spherical or cubic shape), we could selectively obtain octahedrons enclosed by {111} facets and nanocubes/nanobars {100} adding sodium citrate (Na3CA) poly(vinyl pyrrolidone) (PVP), respectively, as while all other parameters were kept same. research not only offers new insights played shape-controlled synthesis but...

Abstract A series of furan‐aromatic polyesters were successfully synthesized via direct esterification method starting from 2,5‐furandicarboxylic acid, ethylene glycol, 1,3‐propanediol, 1,4‐butanediol, 1,6‐hexanediol, and 1,8‐octanediol characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance ( 1 H NMR), X‐ray diffraction (XRD), differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), dynamic mechanical (DMA), tensile tests, so on. The...

Stimuli-responsive polymers uniquely undergo physical/chemical changes in response to their environment. Here, there use for sensing and actuation is reviewed.

Bi2O2CO3/BiOI composites were fabricated at room temperature for the first time by a facile method. X-ray diffraction (XRD), photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), transmission (TEM), UV–vis diffuse reflectance spectra (UV–vis DRS), and nitrogen adsorption–desorption techniques employed to characterize physiochemical properties of composites. The photocatalytic activities Bi2O2CO3, BiOI, evaluated through photocleaning wastewater which contained rhodamine-B,...

Abstract Electronic skin (e‐skin) functions as human–machines interaction interfaces, holding great promise in future personal health monitoring and endowing robots with capability of sense touch. Despite recent exciting progress e‐skin research, accurate discrimination various tactile inputs remains a challenge yet. A 3D processing technique is demonstrated here combining laser fabrication screen printing to construct vertically architectured pressure/temperature bimodal active sensor...

Recording electrophysiological information such as brain neural signals is of great importance in health monitoring and disease diagnosis. However, foreign body response performance loss over time are major challenges stemming from the chemomechanical mismatch between sensors tissues. Herein, microgels utilized large crosslinking centers hydrogel networks to modulate tradeoff modulus fatigue resistance/stretchability for producing hydrogels that closely match properties The exhibit notably...

Abstract New materials and devices for bioelectronics have emerging applications in healthcare monitoring disease diagnostics. Hydrogel‐based sensors face great challenges achieving desirable synergistic performances including intrinsical electron conduction, bacterial resistance, anti‐swelling property, adhesion to tissues. To address current bottlenecks, poly(Cu‐arylacetylide) derived hydrogels are developed the first time that demonstrates all these above intriguing as a result of special...

A novel poly(aryl ether sulfone) ionomer containing hexaalkylguanidinium groups was synthesized, and membranes formed from this polymer displayed large ionic clusters, high hydroxide conductivity, excellent solubility in low boiling point water-soluble solvents such as ethanol methanol.

Anion exchange membrane (AEM) materials were prepared from commercial polysulfone (PSf) by functionalization with tertiary amines via lithiation chemistry. By optimizing the reaction conditions, a degree of substitution (DS) 0.81 could be achieved without evident polymer decomposition or cross-linking. The PSf containing pendent bis(phenyldimethylamine) substituents then quaternized CH3I and ion to provide bis(phenyltrimethylammonium) (PTMA) hydroxide-conductive properties. Flexible tough...

Abstract Free‐standing, hierarchical reticulate single‐walled carbon nanotube (SWCNT) films are embedded in poly(dimethylsiloxane) (PDMS) to fabricate stretchable conductors (SWCNT/PDMS conductors). The highly transparent visible light region and retain excellent conductance under large tensile strains. Strain tests reveal a unique strain‐history dependence behavior of the resistance, resistance stabilization is achieved upon repetitive stretching releasing, implying that SWCNT/PDMS can be...

For the first time, porous peanut-like Bi(2)O(3)-BiVO(4) composites with heterojunctions have been synthesized by a one-step mixed solvothermal method assistance of l-lysine template. A mixture ethylene glycol (EG) and H(2)O (volume ratio EG-H(2)O = 3:1) is used as solvent. Unlike traditional methods, no concentrated HNO(3) and/or NaOH are involved in diluting Bi V sources adopted approach. The as-synthesized samples rough on surface to some extent interior-hollow. degradation methylene blue...

Abstract A common behavior found in nature is the ability of plants and animals to naturally respond their surroundings through actuation. Stimuli‐responsive polymers exhibit same changes environment, although manipulating them a manner that allows responses be harnessed do work via actuation far from trivial. In this Review, examples use temperature, pH, light, electric field (and other) stimulation for are highlighted. The can result materials used grip, lift, move objects as well own...

Abstract Electrically driven molecular light emitters are considered to be one of the promising candidates as single-photon sources. However, it is yet demonstrated that electrically emission can indeed generated from an isolated single molecule notwithstanding fluorescence quenching and technical challenges. Here, we report such a well-defined located inside precisely controlled nanocavity in scanning tunneling microscope. The effective suppression plasmonic enhancement allow us achieve...

Abstract Shape editability combined with a self‐healing capability and long‐term cycling durability are highly desirable properties for wearable supercapacitors. Most supercapacitors have rigid architecture lack the capacity into shapes. Through sandwiching hydrogel electrolytes between two electrodes, suite of that integrate namely: repeated shape editability, excellent capability, is demonstrated. A strategy proposed to enhance by utilizing unique cross‐linking structures. The dynamic...

The future of personalized diagnostics and treatment cardiovascular diseases lies in the use portable sensors. Portable sensors can acquire biomarker information biological fluids such as sweat, an approach that mitigates shortcomings conventional hospital-centered healthcare. Low sensitivity, selectivity, specificity remain bottlenecks for widespread Herein, we demonstrate a sensor simultaneously detects Na+, ascorbic acid, human neuropeptide Y all useful biomarkers to index health....

Abstract Real‐time monitoring of mental stress biomarkers in sweat provides the possibility to evaluate status a precise manner. In general, wearable sensors suffer from inconvenient collection, low levels diagnostic sweat, sophisticated signal processing, and challenges with data visualization. To overcome these challenges, herein an integrated sweat‐sensing patch for continuous analysis (cortisol, Mg 2+ , pH) at rest is demonstrated. The sensing comprised microfluidic chip, highly...

Recording brain neural signals and optogenetic neuromodulations open frontiers in decoding information neurodegenerative disease therapeutics. Conventional implantable probes suffer from modulus mismatch with biological tissues an irreconcilable tradeoff between transparency electron conductivity. Herein, a strategy is proposed to address these tradeoffs, which generates conductive transparent hydrogels polypyrrole-decorated microgels as cross-linkers. The optical of the electrodes can be...

Abstract Human sweat comprises various electrolytes that are health status indicators. Conventional potentiometric electrolyte sensors require an electrical power source, which is expensive, bulky, and requires a complex architecture. Herein, this work demonstrates electric nanogenerator fabricated using silicon nanowire (SiNW) arrays comprising modified carbon nanoparticles. The SiNW platform demonstrated as effective self‐powered sensor for analysis. It has been shown evaporation‐induced...

Peripheral nerve injury often leads to symptoms of motor and sensory impairment, slow recovery nerves after limited treatment methods will aggravate or even lead lifelong disability. Curcumin can promote peripheral regeneration, but how accurately deliver the appropriate concentration curcumin in local remains be solved. In this study, we designed a human hair keratin/chitosan (C/K) hydrogel with sodium tripolyphosphate ions crosslinked topically. Chitosan improves mechanical properties...

A quaternary phosphonium and tertiary phosphorus functionalized microporous polymer was obtained via nickel(0)-catalyzed Yamamoto-type cross-coupling reaction. The integration ratio of signals (quaternary to atoms) close 3:2. networks were stable toward water, base, acid, indeed no change in surface area observed even after the material treated with 10 M HCl. pore size distribution calculated by Horvath–Kawazoe method indicated presence micropores a mean width about 0.7 1.4 nm. Their...

We demonstrate, for the first time to best of our knowledge, fabrication three-dimensional microfluidic channels with arbitrary lengths and configurations inside glass by femtosecond laser direct writing. The main process includes two steps: (1) formation hollow microchannels in a porous substrate immersed water ablation (2) postannealing at ∼1150°C which can be consolidated. show that square-wavelike channel total length ∼1.4 cm diameter ∼64 μm easily produced ∼250 beneath surface.