3D reconstruction of a highly reflective surface based on multi-view fusion and point cloud fitting with a structured light field.

In this paper, a three-dimensional (3D) reconstruction method based on multi-view fusion and point cloud fitting is proposed to accurately reconstruct the highly reflective surface, which can effectively restore the highlight regions with only a single shot. A multi-view image fusion method based on the characteristics of microlens array cameras is used to remove unsaturated highlights. A new adaptive method, to our knowledge, based on binary images is designed to quickly extract the highlight regions.

Direct Reversible Conjugation of an Adenosine Receptor Antagonist to an Axonal Transport Protein Carrier.

This paper describes gold-free central nervous system (CNS) drug conjugation with a neural tracing protein, which represents a significant advance toward clinical relevance of the underlying blood-brain barrier (BBB)-bypassing drug delivery nanotechnology. Retrograde neural tracing proteins, such as wheat germ agglutinin (WGA), have been widely used for histochemical staining to map neuronal connections between peripheral nerve terminals and CNS neurons. Here, we demonstrate that WGA on its own can simultaneously function as a nanocarrier, transporter, and targeting agent by its direct chemical conjugation to a CNS drug, dipropylcyclopentyl xanthine (DPCPX), using minimal synthetic steps and reagents without requiring an additional nanoparticle linker.

Self-Assembled Monolayers for Perovskite Solar Cells: Molecular Design and Chemical Synthesis.

Self-assembled monolayers (SAMs) have been a game-changer for perovskite solar cells (PSCs), significantly boosting their power conversion efficiency (PCE) to 27% in recent years. This breakthrough has garnered unprecedented attention, leading to significant advancements in the design and synthesis of SAM molecules (SAMols). Additionally, SAMs hold significant promise in addressing the lifetime of PSCs and facilitating their commercialization in terms of diversity, flexibility, and multifunctionality.

Ionic Double-Network Hydrogels for Integrated Electromagnetic Shielding and Self-Powered Sensing in Wearable Electronics.

Cardiovascular implantable electronic devices (CIEDs) face dual challenges of high-frequency electromagnetic interference and functional integration. This work reports a multifunctional material constructed via a double-network ionic hydrogel strategy, enabling the integrated realization of efficient electromagnetic shielding and self-powered physiological monitoring. An interpenetrating network skeleton is formed through physical crosslinking of sodium alginate (SA) with Ca⁺ and in situ polymerization of acrylamide (AM).

Flexible, robust, and highly stable gold nanoparticle-decorated aramid nanofiber SERS substrates for ultrasensitive detection of hazardous chemicals in harsh environments.

Surface-enhanced Raman scattering (SERS) has emerged as a powerful analytical technique with broad applications spanning materials science, environmental monitoring, food safety, biomedical diagnostics, and cultural heritage preservation. Despite its widespread adoption, the development of SERS substrates capable of operating in harsh environments remains largely unexplored. To address this challenge, we present a robust SERS platform based on aramid nanofibers (ANFs), which combine exceptional flexibility, outstanding mechanical strength, and remarkable thermal/chemical stability.

Construction and verification of a risk factor prediction model for neonatal severe pneumonia.

Objective: To construct and validate a risk factor prediction model for neonatal severe pneumonia.

Methods: This study collected data from newborns diagnosed with pneumonia in Children's Hospital Affiliated to Zhengzhou University. A total of 652 newborns were included.

Quantum weak value amplified terahertz chiroptical measurement.

A precise method for phase and amplitude detection in both the time and frequency domains of terahertz spectroscopy based on the weak-value amplification technique is proposed and demonstrated. Within the weak-value amplification scheme, the imaginary weak value enhances variations in the terahertz phase signals, whereas the real weak value amplifies changes in the terahertz amplitude signals. By employing various postselections in the terahertz weak measurement procedure in detecting minute changes of the phase and amplitude of the terahertz wave, we achieved a phase change range from -0.

Bio-based derived carbon materials for permittivity metamaterials: dual efficacy of electromagnetic wave protection and Joule heating.

Epsilon-negative metamaterials (ENMs) have attracted extensive research interest due to their unique physical properties and advanced applications in electromagnetic fields. In this study, carbonized wood@Prussian blue derivative (CW@PBD) metacomposites were fabricated from a carbonized wood@Prussian blue analogue (PBA). By varying the PBD content, the negative permittivity constant of the supercomposite can be tuned between -45 and -20.

β-Lactamase-activated antimicrobial dendron the amine uncaging strategy.

The development of new antimicrobial agents to combat multidrug-resistant (MDR) bacteria, especially those that produce β-lactamase enzymes, is a critical step in preventing a post-antibiotic era. Herein, we develop a new membrane-active antimicrobial prodrug (BLM-Dendron) based on the amine uncaging strategy (AUS) whereby the amine groups of a cationic amphipathic dendron are caged/masked initially but can be uncaged specifically in the presence of β-lactamase enzymes (, penicillinase) to enable precise antimicrobial activation. BLM-Dendron undergoes self-assembly in water to form spherical nanoparticles with average hydrodynamic diameter ( ) of 200 nm and is bacteriostatic against (MDR) , and in the presence of penicillinase.

Three-dimensional reconstruction of a light field based on phase restoration for highly reflective surfaces.

This paper proposes, a novel, to our knowledge, phase-restoration-based light field method to achieve 3D reconstruction of highly reflective surfaces. First, a focused light field camera whose angular and spatial resolutions can be adjusted according to the needs has been designed and fabricated to capture 4D light field information. Then, according to the pixel offsets between different sub-aperture images, a phase restoration method based on multi-view complementary information is proposed to restore the missing absolute phase information caused by highlights.

Anisotropic Nanofluidic Ionic Skin for Pressure-Independent Thermosensing.

Ionic skin can mimic human skin to sense both temperature and pressure simultaneously. However, a significant challenge remains in creating precise ionic skins resistant to external stimuli interference when subjected to pressure. In this study, we present an innovative approach to address this challenge by introducing a highly anisotropic nanofluidic ionic skin (ANIS) composed of carboxylated cellulose nanofibril (CNF)-reinforced poly(vinyl alcohol) (PVA) nanofibrillar network achieved through a straightforward one-step hot drawing method.

Regenerative Biomimetic Photosynthesis by Covalent-Organic Framework-Based Nanobiohybrids.

Biomimetic photosynthesis, which leverages nanomaterials with light-responsive capabilities, represents an innovative approach for replicating natural photosynthetic processes for green and sustainable energy conversion. In this study, a covalent-organic framework (COF)-based artificial photosynthesis system is realized through the co-assembly of adenosine triphosphate (ATP) synthase and a light-responsive proton generator onto an imine-based COF, RT-COF-1. This system demonstrates an ATP production rate of 0.

-CoFeO/TiCT/BNC Hybrid Aerogels with Modulation Impedance Matching for Electromagnetic Wave Absorption and Health Monitoring.

Given the limitations of single-function electromagnetic wave-absorbing materials (EWAMs) in meeting the evolving demands of complex usage scenarios, there is a growing need for structure-function integrated composites that offer a combination of microwave absorption, human monitoring, and thermal insulation. This study successfully synthesized two-dimensional (2D) TiCT MXene via selective etching of Al from the TiAlC MAX phase. By introducing MXene into a composite of hydroxylated CoFeO nanoparticles (-CFO NPs) and bacterial nanocellulose (BNC) to modulate the electromagnetic performance of the EWAMs.

One Stone for Multiple Birds: Copolymer with Multifunctional Groups Boosts the Cycling Stability of Lithium Cobalt Oxide Cathodes at 4.5 V.

High-voltage LiCoO is a promising cathode material for ultrahigh-energy lithium-ion batteries, particularly in the commercialization of 5G technology. However, achieving long-term operational stability remains a significant challenge. Herein, a quaterpolymer additive with multiple functional groups is introduced to enhance the electrochemical performance of LiCoO cathode at 4.

Cr-doped NiFe sulfides nanoplate array: Highly efficient and robust bifunctional electrocatalyst for the overall water splitting and seawater electrolysis.

To replace precious metals and reduce production costs for large-scale hydrogen production, developing stable, high-performance transition metal electrocatalysts that can be used in a wide range of environments is desirable yet challenging. Herein, a self-supported hybrid catalyst (NiFeCrS/NF) with high electrocatalytic activity was designed and constructed using conductive nickel foam as a substrate via manipulation of the cation doping ratio of transition metal compounds. Due to the strong coupling synergy between the metal sulfides NiS, FeS, and CrS, as well as their interaction with the conductive nickel foam (NF), the energy barrier for catalytic reactions is reduced, and the charge transfer rate is enhanced.

Transparent and Mechanically Robust Janus Nanofiber Membranes for Open Wound Healing and Monitoring.

The electrospun nanofiber membrane has demonstrated great potential for wound management due to its porous structure, large surface area, mechanical strength, and barrier properties. However, there is a need to develop transparent bioactive nanofibers with strong mechanical properties to facilitate the monitoring of the healing process. In this study, we present an electrospinning-based method for creating transparent (∼80-90%), strong (∼11-13 MPa), and Janus nanofiber membranes.

RAFT Polymerization for Advanced Morphological Control: From Individual Polymer Chains to Bulk Materials.

Control of the morphology of polymer systems is achieved through reversible-deactivation radical polymerization techniques such as Reversible Addition-Fragmentation chain Transfer (RAFT). Advanced RAFT techniques offer much more than just "living" polymerization - the RAFT toolkit now enables morphological control of polymer systems across many decades of length-scale. Morphological control is explored at the molecular-level in the context of syntheses where individual monomer unit insertion provides sequence-defined polymers (single unit monomer insertion, SUMI).

In situ construction of NiCo-layered double hydroxide nanobranches with adjustable layer spacing on micro-sized carbon plate for high-performance supercapacitors.

Binary layered double hydroxides (LDHs) are an emerging class of materials for supercapacitors owing to their tunable topological structure and excellent theoretical energy storage capacity. However, aggregation and restacking cause a decrease in the interlayer distance of LDHs, resulting in a considerable drop in real specific capacitance. To address this, large-sized anions are intercalated into the interlayer space.

Core-shell structured MgCoO@Ni(OH) nanorods as electrode materials for high-performance asymmetric supercapacitors.

In the field of energy storage, supercapacitors have received extensive attention in recent years. However, achieving the expected electrochemical performance and energy density of supercapacitors is still a huge challenge. The design and synthesis of binder-free composite electrode with core-shell structure is an effective strategy to improve the electrochemical performance of supercapacitors.

Pyrazole carbodithiolate-driven iterative RAFT single-additions.

In this Communication, we comprehensively investigated substituent effects relevant to iterative reversible activation fragmentation chain transfer (RAFT) single unit monomer insertion (SUMI) reactions. Through the use of the pyrazole carbodithiolate (PCDT) "Z-group" as the chain transfer component in RAFT SUMI, we show the importance of "Z-group" effects and its interplay with "R-group" (the carbon-centred radical precursor) effects. We also expanded the scope of RAFT SUMI to new monomer types and sequences thereof.

Protonated amine and pyrene co-functionalized sodium alginate templated on reduced graphene oxide for highly efficient removal of formaldehyde and acid pollutants.

Indoor formaldehyde pollution can cause inestimable harm to human health and even cancers, thus studies on the removal of formaldehyde attract extensive attentions. In this paper, an environmentally friendly and low-cost biomass material, sodium alginate (SA) was utilized to prepare pyrene functionalized amido-amine-alginic acid (AmAA-Py) by acidification and two-step amidation, which is subsequently self-assembled on reduced graphene oxide (rGO) by π-π stacking interaction, and the final composites were acidified to afford a highly porous composite material for chemical removal of formaldehyde. The formaldehyde chemical removal performance of composite is evaluated at different conditions and find that 1.

Smart Galactosidase-Responsive Antimicrobial Dendron: Towards More Biocompatible Membrane-Disruptive Agents.

Antimicrobial resistance is a global healthcare challenge that urgently needs the development of new therapeutic agents. Antimicrobial peptides and mimics thereof are promising candidates but mostly suffer from inherent toxicity issues due to the non-selective binding of cationic groups with mammalian cells. To overcome this toxicity issue, this work herein reports the synthesis of a smart antimicrobial dendron with masked cationic groups (Gal-Dendron) that could be uncaged in the presence of β-galactosidase enzyme to form the activated Enz-Dendron and confer antimicrobial activity.

Multi-laser source interference suppression using the time-coding method for SPAD-based flash DToF systems.

Flash-type direct time-of-flight (DToF) image sensors use an in-pixel successive approximation register time-to-digital converter (SAR TDC) for time quantization. However, in a scene where multiple DToF systems exist simultaneously, different laser signals from multiple sources will produce mutual signal interference between DToF systems, causing the DToF system's incorrect measurement. In this paper, we present a method called time coding, which inserts delay time bins between different working periods to suppress the interference laser together with the SAR TDC.

Molecular Dynamics Simulation of Ignition Behavior of Low Palmitic Acid-Coated Nanoaluminum Powder.

Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS) was used to perform molecular dynamics (MD) simulations of the phase transition and decoating behavior of aluminum nanopowder (ANP)-palmitate composite particles under typical water ram engine conditions. We originally intended to investigate the effect of the degree of coating on the decorrelation behavior of the composite particles but accidentally discovered the premixed ignition behavior of low-coated composite particles. Therefore, we summarized and subdivided the four stages of precombustion adsorption, premixed ignition, melt-off, and full-scale combustion of palmitic acid-coated nanoaluminum powders by combining the simulations and studies of palmitic acid pyrolysis, ANP phase transition, and water molecule adsorption efficiency.