Hainan University

Ultrasound-Assisted Deep Eutectic Solvent Extraction of Total Flavonoids from Hainan Li-Medicine Polygonum hydropiper: Process Optimization, Antioxidant Activity and Molecular Mechanism

Ultrasound-assisted deep eutectic solvent (DES) extraction was developed for the efficient recovery of total flavonoids from Polygonum hydropiper L., a traditional Li medicinal plant from Hainan, China. Among 30 DES formulations screened, betaine-glycerol (Bet-Gly, 1:2) afforded...

Synergistic co-intercalation of binary and ternary transition-metal cations in hydrated vanadium oxide nanosheets for high-performance aqueous zinc-ion batteries

Vanadium-based oxides have emerged as promising cathode materials in aqueous zinc-ion batteries (AZIBs), owing to their tunable layered architectures and high theoretical specific capacities. To date, hydrothermal/solvothermal synthesis remains the predominant approach for prepar...

Antibacterial and Biocompatible Iodine-Releasing Polycationic Coatings Synthesized by Solvent-Free Initiated Chemical Vapor Deposition

Abstract Bacterial adhesion to surfaces of medical devices may cause medical device-associated infections. This challenge can be addressed by surface modification utilizing antibacterial coatings. Polycationic coatings possess excellent antibacterial activity, but their biocompat...

Integrating Perceived ESG Dimensions Into Behavioral Models of Sustainable Tourism Consumption: Perspective From the Theory of Planned Behavior

Tourism is an important driver of socio-economic development. However, its rapid growth has increased pressure on the environment and host communities. Hence, it becomes increasingly urgent to understand that how tourists perceive sustainability and how these perceptions shape th...

Diets Containing Defatted Black Soldier Fly Larvae Meal Improve Intestinal Morphology and Antioxidant Capacity in Wenchang Chickens

Background/Objectives: This study evaluated the effects of dietary defatted black soldier fly (Hermetia illucens) larvae meal (DBSFLM) as a partial replacement of traditional dietary protein sources on growth performance, carcass traits, meat quality, serum biochemical and antiox...

Revealing the rfb gene as a critical virulence determinant enabling vaccine development for hypervirulent Aeromonas dhakensis

Abstract Aeromonas dhakensis is an emerging pathogen causing bacteremia in a wide range of aquatic animals and humans, but its pathogenesis remains unclear. The hypervirulent A. dhakensis strain C4-1 was recovered from a fatal septicemia outbreak among farmed Siamese crocodiles i...

Integrating chromic responsiveness with conventional performance toward multifunctional smart fibers for applied technologies

Abstract Stimuli-responsive wearable textiles with reversible colorimetric changes have been crucial for various applications, such as healthcare monitoring, camouflage, energy-saving building materials, and sensing. Rapid technological advancements have led to a diversity of sma...

Nano-modified biochar mitigates toxicity from co-contamination with lead and microplastics in alfalfa by modulating photosynthesis, nitrogen assimilation, and antioxidant systems

Microplastics (MPs) and heavy metals are released into the environment and pose serious challenges to crop productivity and human health. The role of biochar and calcium oxide nanoparticle (CaO-NPs) modified (NBC) in mitigating MPs and lead (Pb 2+ ) toxicity has not yet been expl...

Ionically Counter‐Programmable Phase‐Separation of Superstable Star‐Biopolyamide Coacervates for Electrothermally‐Responsive Pseudosolid Smart Windows

ABSTRACT Thermoresponsive polymers are highly anticipated for passive thermochromic smart windows, yet the instability and too‐high mobility of their light‐scattering states for separated phases remain significant hurdles. To address these challenges, we report a design concept f...

Dynamic Diffusion of Legal Compliance and Ethical Conduct among Construction Project Owners: An Epidemiological Modeling Approach

Abstract Construction industries worldwide face persistent challenges of ethical misconduct, contractual violations, and regulatory noncompliance, imposing substantial legal liabilities and undermining sustainable development. Although legal frameworks exist to govern owner behav...

Global Mindedness and Pro-Environmental Behaviors in Different Economic, Cultural, and Political Contexts

Addressing global environmental challenges calls not only for international cooperation but also for individuals to transcend national boundaries and identities. Previous research on the relationship between global mindedness and pro-environmental behaviors has yielded inconsiste...

Phosphorus Addition Enhances Ecosystem Multifunctionality While Reshaping Multi-Trophic Biodiversity–Function Relationships in a Tropical Cloud Forest

Background: Phosphorus (P) availability regulates tropical forest functioning, yet how P enrichment reshapes biodiversity–ecosystem multifunctionality (EMF) relationships remains poorly understood, especially in tropical cloud forests (TCFs), where rising nutrient inputs may shif...

Heat transfer characteristics and energy performance of lightweight building envelopes in hot summer and warm winter regions

This study investigates the application of an EPS light-gauge steel composite envelope system in rural buildings located in the hot-summer and warm-winter region of Hainan. An experimental building was constructed in Shitang Village, Ding’an County, Hainan Province, using traditi...

Nanotechnology-Enabled Strategies for Enhancing Plant Abiotic Stress Tolerance

Amid increasingly complex climate scenarios, abiotic stresses such as drought, extreme temperatures, and soil salinization have emerged as primary bottlenecks limiting the sustainable development of modern agriculture. Because of their unique nanoscale effects and physicochemical...

Computer Vision-Based Identification of Riverfront Landscape Characteristics and Their Associations with Visual Perception: A Case Study of the Meishe River in Haikou, China

The 2026 public consultation draft of the Haikou Special Plan for Urban Renewal (2025–2035) calls for closer integration of blue–green spaces with urban life and underscores the need to improve the quality of urban waterfront public spaces. As a major urban river running through...

Characterization of the MeWRKY12–MeSSIV Regulatory Module and MeWRKY12 Promoter Activity in Cassava

Background: Soluble starch synthases are essential for starch formation, but their transcriptional regulation remains poorly understood in cassava. Starch synthase IV (SSIV) is an important enzyme in starch biosynthesis, and this study aimed to investigate the transcriptional reg...

Plant growth-promoting bacteria enhance growth and drought resilience in tomato by reprogramming photosynthesis, antioxidant defence, and gene responses

Drought stress is a major constraint on crop productivity, particularly in arid and semi-arid regions where water limitation disrupts photosynthesis, antioxidant balance, and core physiological processes. Here, we isolated three plant growth-promoting bacteria (PGPB) from hypersa...

SpectralMol: Spectral Graph Bisection Achieves Universal Molecular Fragment Decomposition for Drug-Like Molecule Generation

Abstract Generating valid, diverse, and drug-like molecules remains a central challenge in computational drug discovery. A key bottleneck for fragment-based generative models is decomposition coverage: existing junction-tree methods fail on bridged bicyclic and spiro ring systems...

Considerable Anisotropy Magnetoresistance by Oxygen-Mediated Spin State Manipulation in a Highly Textured Multilayer for Ultrasensitive Sensor Application

Spin state manipulation in anisotropy magnetoresistance (AMR) materials is key to improving their transport property for constructing highly sensitive and direction-resolvable magnetic sensors. Currently, the mainstream strategy of tuning the transport property focuses on the mod...

A deep geostatistical fusion framework for forest canopy height retrieval in complex tropical terrain

Forest canopy height (FCH) is a fundamental parameter for assessing forest biomass, carbon stocks, and ecosystem health, yet accurate large-scale estimation remains challenging, particularly in complex terrains where remote sensing signals are susceptible to geometric distortions...