Functional bio-inspired hybrid fliers with separated ring and leading edge vortices.

Recent advances in passive flying systems inspired by wind-dispersed seeds contribute to increasing interest in their use for remote sensing applications across large spatial domains in the Lagrangian frame of reference. These concepts create possibilities for developing and studying structures with performance characteristics and operating mechanisms that lie beyond those found in nature. Here, we demonstrate a hybrid flier system, fabricated through a process of controlled buckling, to yield unusual geometries optimized for flight.

Unveiling the Fatigue Behavior of 2D Hybrid Organic-Inorganic Perovskites: Insights for Long-Term Durability.

2D hybrid organic-inorganic perovskites (HOIPs) are commonly found under subcritical cyclic stresses and suffer from fatigue issues during device operation. However, their fatigue properties remain unknown. Here, the fatigue behavior of (C H -NH ) (CH NH ) Pb I , the archetype 2D HOIP, is systematically investigated by atomic force microscopy (AFM).

Comparison of developmental toxicity of different surface modified CdSe/ZnS QDs in zebrafish embryos.

Quantum dots (QDs) are new types of nanomaterials. Few studies have focused on the effect of different surface modified QDs on embryonic development. Herein, we compared the in vivo toxicity of CdSe/ZnS QDs with carboxyl (-COOH) and amino (-NH) modification using zebrafish embryos.

The interference effects of bisphenol A on the synthesis of steroid hormones in human ovarian granulosa cells.

Numerous studies have shown that endocrine-disrupting chemicals are one of the important pathogenic factors in women with polycystic ovary syndrome. Our previous study has revealed that bisphenol A (BPA) can cause steroid hormone imbalance, polycystic ovary, and estrus cycle disorder. In this study, we aimed to explore the effect of BPA, a typical environmental estrogen, on the synthesis of steroid hormones in human ovarian granulosa KGN cells.

Mixed-flow design for microfluidic printing of two-component polymer semiconductor systems.

The rational creation of two-component conjugated polymer systems with high levels of phase purity in each component is challenging but crucial for realizing printed soft-matter electronics. Here, we report a mixed-flow microfluidic printing (MFMP) approach for two-component -polymer systems that significantly elevates phase purity in bulk-heterojunction solar cells and thin-film transistors. MFMP integrates laminar and extensional flows using a specially microstructured shear blade, designed with fluid flow simulation tools to tune the flow patterns and induce shear, stretch, and pushout effects.

Graphene oxide quantum dot exposure induces abnormalities in locomotor activities and mechanisms in zebrafish (Danio rerio).

Graphene oxide quantum dots (GOQDs) have broad applications such as bioimaging and drug delivery, among others, even expanding into the aquatic environment. However, reports on the adverse effects of GOQDs on fish development are limited. In this study, we exposed zebrafish embryos to GOQDs for 7 days after fertilization and found that GOQDs exposure at low concentrations (12.

Burn injury and multiple sclerosis: A retrospective case-control study.

Objectives: The purpose of this study was to determine whether having a previous diagnosis of multiple sclerosis (MS) changed acute care needs in burn-injured patients.

Methods: This was a retrospective case-control study that included adult (aged ≥18years) patients with an acute burn injury. Control patients were matched with eleven patients with a history of MS at a 4:1 ratio.

Lattice-contraction triggered synchronous electrochromic actuator.

Materials with synchronous capabilities of color change and actuation have prospects for application in biomimetic dual-stealth camouflage and artificial intelligence. However, color/shape dual-responsive devices involve stimuli that are difficult to control such as gas, light or magnetism, and the devices show poor coordination. Here, a flexible composite film with electrochromic/actuating (238° bending angle) dual-responsive phenomena, excellent reversibility, high synchronization, and fast response speed (< 5 s) utilizes a single active component, WO nanowires.

Sepsis criteria versus clinical diagnosis of sepsis in burn patients: A validation of current sepsis scores.

Background: Sepsis remains an ongoing diagnostic challenge in burns, especially with the signs of sepsis being ubiquitously present during the acute period after injury. We aimed to determine the predictive validity of 3 current sepsis criteria in the burn population. The criteria of interest included the American Burn Association sepsis criteria, Mann-Salinas et al predictors of sepsis, and the Sepsis-3 consensus definition.

A contact formulation based on a volumetric potential: Application to isogeometric simulations of atrioventricular valves.

This work formulates frictionless contact between solid bodies in terms of a repulsive potential energy term and illustrates how numerical integration of the resulting forces is computationally similar to the "pinball algorithm" proposed and studied by Belytschko and collaborators in the 1990s. We thereby arrive at a numerical approach that has both the theoretical advantages of a potential-based formulation and the algorithmic simplicity, computational efficiency, and geometrical versatility of pinball contact. The singular nature of the contact potential requires a specialized nonlinear solver and an adaptive time stepping scheme to ensure reliable convergence of implicit dynamic calculations.

Ion-Transport Design for High-Performance Na-Based Electrochromics.

Sodium ion (Na)-based electrochemical systems have been extensively investigated in batteries and supercapacitors and also can be quality candidates for electrochromic (EC) devices. However, poor diffusion kinetics and severe EC performance degradation occur during the intercalation/deintercalation processes because the ionic radii of Na are larger than those of conventional intercalation ions. Here, through intentional design of ion-transport channels in metal-organic frameworks (MOFs), Na serves as an efficient intercalation ion for incorporation into a nanostructured electrode with a high diffusion coefficient of approximately 10 cm s.

Plasma-Triggered CH/NH Coupling Reaction for Direct Synthesis of Liquid Nitrogen-Containing Organic Chemicals.

Nitrogen-containing organic chemicals such as amines, amides, nitriles, and hydrazones are crucial in chemical and medical industries. This paper reports a direct synthesis of ,-dimethyl cyanamide [(CH)NCN] and amino acetonitrile (NHCHCN) through a methane/ammonia (CH/NH) coupling reaction triggered by dielectric barrier discharge plasma, with by-products of hydrazine, amines, and hydrazones. The influence of CH/NH molar ratio, feedstock residence time, and specific energy input on the CH/NH plasma coupling reaction has been investigated and discussed.