Sustainable Radiative Cooling of Microstructure Modulated Flexible poly(lactic Acid) Films.

The optimization of polymer microstructures to enable resonant light scattering within the solar spectrum offers significant potential for passive cooling, however, achieving precise microstructural control remains technically challenging. Herein, we present a strategy for fabricating polylactide radiative cooling film with adjustable microstructure. The surface pore structure and internal spherical structure of the film are precisely controlled by polyethylene glycol, which in turn modulates the film's optical properties.

Dual-Functional Antifouling and Antibacterial Coating for Medical PVC Based on Hyaluronic Acid and a Quaternary Ammonium Salt.

Bacteria adhesion, which forms biofilms with multicellular structures on the surfaces of various medical devices, can result in severe infections and even patient mortality. Here, we develop an effective antifouling and antibacterial coating for poly(vinyl chloride) (PVC) substrates. Specifically, the coating is fabricated with anionic polysaccharide hyaluronic acid (HA) and cationic quaternized ,-dimethylethylenediamine (QDED).

Ultra-sensitive boric acid detection using a plasmonic fiber-optic spectral comb and MEA modified with gold nanoparticles.

Even trace amounts of boric acid (BA) could cause serious harm to human beings and the environment. Therefore, trace BA detection is very important. Here, we propose a tilted fiber Bragg grating (TFBG)-based plasmonic fiber-optic spectral comb for ultra-low limit BA detection.

Eco-Friendly Multifunctional Hydrogel Sensors Enabled Sustainable and Accurate Human-Machine Interaction System.

Wearable epidermic electronics assembled by conductive hydrogels exhibit great application potential for their seamless integration with the human body for human-machine interactions (HMI). However, most multifunctional hydrogel sensors are prone to water loss and become useless e-waste, resulting in a growing threat to the global environment and human health. Inspired by the resurrection plants, this paper introduces the reversible intermolecular forces and physical crosslinking method into the hydrogel system to obtain a fully recyclable multifunctional smart hydrogel sensor (RMSHS), which can be completely recycled in a simple step.

Disentangling minimum clinically important difference for an individual and a population in the treatment of Alzheimer's disease.

Unlabelled: Recent accelerated and traditional approval of anti-amyloid therapies by the U.S. Food and Drug Administration for the treatment of patients with early Alzheimer's disease has stimulated heated debate on whether or not the benefits of these therapeutic agents achieve a minimum clinically important effect size, or minimum clinically important difference.

Forecasting optimal treatments in relapsed/refractory mature T- and NK-cell lymphomas: A global PETAL Consortium study.

There is no standard of care in relapsed/refractory T-cell/natural killer-cell lymphomas. Patients often cycle through cytotoxic chemotherapy (CC), epigenetic modifiers (EM) or small molecule inhibitors (SMI) empirically. Ideal therapy at each line remains unknown.

Selective dissolution as a tool for detecting spatial variations in the metastability within lamellar polymer crystals.

The dissolution of polymer crystals often proceeds at rates varying in time and space. Here, using low molecular weight poly(ethylene oxide) as a model polymer, we exploit step-wise selective dissolution for unveiling how spatial variations in metastability are generated during the growth of lamellar polymer single crystals. The dissolution velocity along defined crystal faces is constant, but ca.

Crystallization behavior of poly(lactic acid) nucleated by benzoylhydrazide compounds with different methylene numbers: A comparative study.

Poly(lactic acid) (PLA) is an important biobased biodegradable plastics but its inherent crystallization rate is slow. Organic self-assembly nucleating agents have shown excellent nucleating effect in enhancing PLA crystallization. However, the relationship between the chemical structures of organic nucleating agents and their nucleating ability is still not yet well elucidated.

Characterizing gait in people with multiple sclerosis using digital data from smartphone sensors: A proposed framework.

Background: Mobility assessment is essential for monitoring disease progression in people with multiple sclerosis (PwMS). Technologies such as wearable sensors show potential for this purpose, but consensus is needed to optimize collection and interpretation of digital measures in PwMS.

Objective: To propose a framework for measuring and interpreting key aspects of impaired gait in PwMS using a smartphone worn at the waist level.

Absorption-Reflection-Transmission Power Coefficient Guiding Gradient Distribution of Magnetic MXene in Layered Composites for Electromagnetic Wave Absorption.

The morphological distribution of absorbent in composites is equally important with absorbents for the overall electromagnetic properties, but it is often ignored. Herein, a comprehensive consideration including electromagnetic component regulation, layered arrangement structure, and gradient concentration distribution was used to optimize impedance matching and enhance electromagnetic loss. On the microscale, the incorporation of magnetic Ni nanoparticles into MXene nanosheets (Ni@MXene) endows suitable intrinsic permittivity and permeability.

A Transparent Polymer-Composite Film for Window Energy Conservation.

As living standards improve, the energy consumption for regulating indoor temperature keeps increasing. Windows, in particular, enhance indoor brightness but also lead to increased energy loss, especially in sunny weather. Developing a product that can maintain indoor brightness while reducing energy consumption is a challenge.

Organic-Inorganic Hybrid One-Dimensional Photonic Crystals with Blue and NIR Dual Bandgaps for Light Protection.

Planar 1D photonic crystals (1DPhCs), owing to their photonic bandgaps (PBGs) formed by unique structural interference, are widely utilized in light protection applications. Multifunctional coatings that integrate various light management functions are highly desired. In this study, we present the fabrication of dual-PBG 1DPhCs with high reflectance in both the blue and near-infrared (NIR) regions.

Meta-coupler empowered dynamic wavefront control with on-chip polarization reconfiguration.

Metasurfaces consisting of subwavelength structures have shown unparalleled capability in light field manipulation. However, their functionalities are typically static after fabrication, limiting their practical applications. Though persistent efforts have led to dynamic wavefront control with various materials and mechanisms, most of them work in free space and require specialized materials or bulky configurations for external control.

Template-Thermally Induced Phase Separation-Assisted Microporous Regulation in Poly(lactic acid) Aerogel for Sustainable Radiative Cooling.

Herein, an eco-friendly and degradable poly(lactic acid) aerogel was prepared by combining a poly(ethylene glycol) template material with thermally induced phase separation. Due to the tailored pore size introduced by the template material, the aerogel exhibits high solar reflectance (92.0%), excellent thermal emittance (90.

Air-Drying for Rapid Manufacture of Flexible Aramid Nanofiber Aerogel Fibers with Robust Mechanical Properties and Thermal Insulation in Harsh Environments.

Aerogel fibers uniting characteristics of both aerogels (lightweight and porosity) and fibers (flexibility and wearability) exhibit a great potential for the production of the next generation of thermal protection textiles; still, the complex drying procedures and mechanical brittleness remain the main obstacles toward further exploitation. Herein, flexible and robust aramid nanofiber aerogel fibers (ANAFs) are scalably prepared by continuous wet-spinning coupled with fast air-drying. This synthesis involves calcium ions (Ca⁺) cross-linking and solvent displacement by low surface tension solvents, to enhance skeleton strength and reduce the capillary force during evaporation, respectively, thus minimizing shrinkage to 29.

Respiratory monitoring via a nanoporous film-coated tilted fiber Bragg grating humidity sensor.

A humidity sensor for respiratory monitoring based on a tilted fiber Bragg grating (TFBG) functionalized with a nanoporous coating consisting of titanium carbide (TiC) and fullerene (C) is proposed. By incorporating the C into TiC, a nanocomposite film with abundant three-dimensional porousness is coated on the TFBG surface. The nanocomposite film with strong hygroscopicity and desorption properties is highly sensitive to environmental humidity variations, where the induced refractive index changes of the coating result in the spectral responses of TFBG multi-resonances.

MoS Decorated on 1D MoS@Co/NC@CF Hierarchical Fibrous Membranes for Enhanced Microwave Absorption.

The design and development of high-quality electromagnetic waves (EMW) absorbing materials play a vital role in combating the escalating negative effects of microwave radiation and interference. Herein, MoS@Co/NC@CF fibrous membranes are successfully fabricated by electrospinning technology and carbonization, and a molybdenum disulfide (MoS) layer is synthesized on the surface of these fibers via hydrothermal method. The seed-assisted growth method not only effectively avoids the accumulation and improves the loading of ZIF-67 particles, so as to ensure that the magnetic components in the fibers are evenly distributed in a wider range, rather than only intermittently present in some sites.

Unique framework effect induced by uniform silk fibroin dynamic nanospheres enables multiscale hydrogel with outstanding elastic resilience and strain sensing performance.

It is a significant challenge to obtain hydrogels simultaneously with low tensile energy dissipation, high compressive resilience and long durability. Herein, the uniform dynamic nanospheres (Sil-4H) derived from 4-Hydroxybutyl acrylate glycidyl ether grafted silk fibroin is designed to overcome this issue. Due to its uniform and dynamic characteristic, Sil-4H could endow hydrogel with homogeneous multiscale structure and produce unique framework effect.

Air-microwave simultaneously induced carbon fiber surface oxidation and magnetism adjustment by CoO nanoparticles rapid assembly for interface enhancement and electromagnetic wave absorption of its composites.

It is a significant challenge to develop a fast carbon fiber (CF) surface modification method, especially for the high strength electromagnetic wave (EMW) absorption materials. Herein, magnetic CoO nanoparticles are successfully synthesized and uniformly assembled on CF surface with high oxygen-containing groups by rapid ambient microwave carbon thermal shock (MCTS). The presence of oxygen defect sites on CF surface promotes CoO nanoparticles nucleation.