In situ Synthesis of Biomimetic Silica Nanofibrous Aerogels with Temperature-Invariant Superelasticity over One Million Compressions.

Resilient and compressible three-dimensional nanomaterials comprising polymers, carbon, and metals have been prepared in diverse forms. However, the creation of thermostable elastic ceramic aerogels remains an enormous challenge. We demonstrate an in situ synthesis strategy to develop biomimetic silica nanofibrous (SNF) aerogels with superelasticity by integrating flexible electrospun silica nanofibers and rubber-like Si-O-Si bonding networks.

Solvothermal and Ultrasonic Preparation of Two Unique Cluster-Based Lu and Y Coordination Materials: Metal-Organic Framework-Based Ratiometric Fluorescent Biosensor for an Ornidazole and Ronidazole and Sensing Platform for a Biomarker of Amoeba Liver Abscess.

Through powerful solvothermal and facile ultrasonic synthetic strategies, two unique cluster-based lanthanide Lu and Y nanoporous metal organic frameworks (MOFs) have been successfully prepared, namely, {[Lu(L)]·2DMF·HO} () and [Y(L)(DMF)] () (HL = terphenyl-3,4'',5-tricarboxylic acid). In addition, both the morphologies and nanosizes of and materials also have been deliberately tuned by adjustable ultrasonic conditions including irradiation time (40, 60, and 80 min) and power (70 w, 100 w). Currently, it is noted that the abuse of antibiotics such as ornidazole and ronidazole leads to great damage to human health, and therefore the development of highly effective and facile detection methods for ornidazole and ronidazole is quite important.

Highly Flexible, Efficient, and Sandwich-Structured Infrared Radiation Heating Fabric.

Controlling thermal energy is one of the biggest concerns along with the progress of human civilization for thousands of years. Current thermal comfort devices are mainly based on materials that are bulky, rigid, and heavy, largely limiting their widespread practical applications. It still remains a challenge to develop highly lightweight, flexible, and efficient electrical heaters for personal thermal management and local climate control.

Multi-scaled interconnected inter- and intra-fiber porous janus membranes for enhanced directional moisture transport.

Hypothesis: Growing use of comfortable functional textiles has resulted in increased demand of excellent directional moisture (sweat) transport feature in textiles. However, designing such anisotropic functional textiles that allow fast penetration of sweat through one direction but prevent its movement in the reverse direction is still a challenging task. In this regard, fabrication of a novel Janus membrane with multi-scaled interconnected inter- and intra-fiber pores for enhanced directional moisture transport designed by a rational combination of superhydrophilic hydrolyzed porous polyacrylonitrile (HPPAN) nanofibers and hydrophobic polyurethane (PU) fibers via electrospinning may be a very useful approach.

Electrospun nanofiber-reinforced three-dimensional chitosan matrices: Architectural, mechanical and biological properties.

The poor intrinsic mechanical properties of chitosan hydrogels have greatly hindered their practical applications. Inspired by nature, we proposed a strategy to enhance the mechanical properties of chitosan hydrogels by construction of a nanofibrous and cellular architecture in the hydrogel without toxic chemical crosslinking. To this end, electrospun nanofibers including cellulose acetate, polyacrylonitrile, and SiO nanofibers were introduced into chitosan hydrogels by homogenous dispersion and lyophilization.

Response to comment on "Visible-light-driven, hierarchically heterostructured, and flexible silver/bismuth oxyiodide/titania nanofibrous membranes for highly efficient water disinfection" by Song et al.

A reply to the comment of Kim et al. on "Visible-light-driven, hierarchically heterostructured, and flexible silver/bismuth oxyiodide/titania nanofibrous membranes for highly efficient water disinfection" is presented. We would like to thank Kim et al.

Technical Blossom in Medical Care: The Influence of Big Data Platform on Medical Innovation.

Medical innovation has consistently been an essential subject and a source of support for public health research. Furthermore, improving the level of medical research and development is of great concern in this field. This paper highlights the role of big data in public medical innovation.

Fluorine-Free Waterborne Coating for Environmentally Friendly, Robustly Water-Resistant, and Highly Breathable Fibrous Textiles.

Waterproof and breathable membranes (WBMs) with simultaneous environmental friendliness and high performance are highly desirable in a broad range of applications; however, creating such materials still remains a tough challenge. Herein, we present a facile and scalable strategy to fabricate fluorine-free, efficient, and biodegradable WBMs step-by-step dip-coating and heat curing technology. The hyperbranched polymer (ECO) coating containing long hydrocarbon chains provided an electrospun cellulose acetate (CA) fibrous matrix with high hydrophobicity; meanwhile, the blocked isocyanate cross-linker (BIC) coating ensured the strong attachment of hydrocarbon segments on CA surfaces.

Hierarchically Rough Structured and Self-Powered Pressure Sensor Textile for Motion Sensing and Pulse Monitoring.

Nowadays, real-time human motion sensing and pulse monitoring can provide significant basis for health assessment and medical diagnosis. Nevertheless, it is still a big challenge to design a lightweight, flexible, and energy-sustainable pressure sensor with high sensitivity and breathability. Here, we fabricated a triboelectric all-fiber structured pressure sensor via a facile electrospinning technique.

Stretchable PDMS Embedded Fibrous Membranes Based on an Ethanol Solvent System for Waterproof and Breathable Applications.

Flexible membranes with excellent waterproofness and breathability have been strongly desired in wound dressing applications with the aim of providing both protection and comfort. Despite the advances in protective clothing using waterproof breathable materials, the construction of waterproof breathable membranes suited for wound dressing still faces huge challenges to eliminate the toxic solvent residue-related harm to health and improve the waterproof, breathable, and stretchable performance. In the current work, we developed a facile and versatile approach based on one-step electrospinning and an ethanol solvent system for producing skinlike waterproof and breathable polydimethylsiloxane (PDMS) embedded polyvinyl butyral (PVB) fibrous membranes.

Electrospun carbon nanofibers with multi-aperture/opening porous hierarchical structure for efficient CO adsorption.

Hypothesis: Carbonaceous materials are believed to be excellent source for developing essential vessels for carbon dioxide (CO) adsorption. However, most of the carbonaceous materials used for CO capture have particle form, which is hard to recycle and also may cause choking of the gas pipes. Additionally, they also either require chemical activation or attachment of any functional groups for proficient CO capture.

Multifunctional flexible membranes from sponge-like porous carbon nanofibers with high conductivity.

Conductive porous carbon nanofibers are promising for environmental, energy, and catalysis applications. However, increasing their porosity and conductivity simultaneously remains challenging. Here we report chemical crosslinking electrospinning, a macro-micro dual-phase separation method, to synthesize continuous porous carbon nanofibers with ultrahigh porosity of >80% and outstanding conductivity of 980 S cm.

Smart, Elastic, and Nanofiber-Based 3D Scaffolds with Self-Deploying Capability for Osteoporotic Bone Regeneration.

It has been a major challenge to treat osteoporotic bone defects with irregular shapes. Although bioactive glass offers an attractive material for bone regeneration, its inherent brittleness has greatly limited its scope of application. Herein, we report the fabrication of bioactive glass (SiO-CaO) nanofibers with excellent flexibility to even allow for 180° bending.

Thorn-like flexible AgCO/TiO nanofibers as hierarchical heterojunction photocatalysts for efficient visible-light-driven bacteria-killing.

TiO-based fibrous membranes as plasmonic heterojunction photocatalysts would hold great promise in the field of water disinfection, however, it still existed a great challenge to design and construct such materials. Here, we presented the fabrication of continuous, hierarchical, and easy-to-recycle flexible AgCO/TiO heterostructured nanofibrous membranes (NMs) that were composed of thorn-like nanofibers through electrospinning technique followed by successive ionic layer adsorption and reaction (SILAR) process. AgCO nanoplates were firmly anchored on the surface of TiO and the obtained AgCO/TiO heterojunction photocatalysts underwent a silent-to-active transition of visible-light response under light irradiation due to the surface plasmon resonance (SPR) effect of Ag nanoparticles derived from AgCO, forming a new plasmonic heterojunction photocatalyst.

SbS nanoparticles anchored on SnO nanofibers: a high-performance hybrid electrocatalyst toward ammonia synthesis under ambient conditions.

Herein, we report a novel transition-metal-based electrocatalyst, Sb2S3 nanoparticles, which exhibits electrocatalytic activity toward ammonia synthesis under ambient conditions. These Sb2S3 nanoparticles are further anchored on SnO2 nanofibers, which act as an active substrate to prevent them from aggregation while enhancing the electrocatalytic activity. The obtained Sb2S3@SnO2 nanofibers deliver excellent ammonia yield (22.

Self-Assembled Conductive Metal-Oxide Nanofiber Interface for Stable Li-Metal Anode.

Li-metal anodes promise to build high-energy-storage systems, but they suffer from safety problems from severe dendrite growth. Here, we develop a thin and conformal hybrid ionic and electronic conducting metal-oxide nanofiber interface to stabilize Li-anodes without forming dendrites. The thin ionic-conductive LiLaTiO (LLTO) nanofiber film is first fabricated by electrospinning followed by pyrolysis.

Shapeable, Underwater Superelastic, and Highly Phosphorylated Nanofibrous Aerogels for Large-Capacity and High-Throughput Protein Separation.

Developing nanofibrous aerogels with high porosity, robust underwater mechanical strength, and rich adsorption ligands, has been considered as one of the most promising strategies for preparing the next generation of high-efficiency and high-throughput chromatographic media; yet great challenges still remain. Herein, a novel type of highly phosphorylated nanofibrous aerogels (PNFAs) is fabricated, for the first time, by combining electrospinning, cryogenic induced phase separation regulation, and in situ phosphorylation modification. The PNFAs exhibit outstanding underwater superelasticity and excellent compression fatigue resistance (∼0% plastic deformation after 1000 compression cycles), as well as favorable shape-memory property.

Highly Efficient, Transparent, and Multifunctional Air Filters Using Self-Assembled 2D Nanoarchitectured Fibrous Networks.

Particulate matter (PM) pollution is a significant burden on global economies and public health. Most present air filters are heavy, bulky, and nontransparent and typically have inevitable compromise between removal efficiency and air permeability. We report a scalable strategy to create ultralight, thin, rubbery, self-assembled nanoarchitectured networks (nanonetworks) with high-efficiency and transparency (ULTRA NET) as air filters using capacitive-like electronetting technology.

Porous, flexible, and core-shell structured carbon nanofibers hybridized by tin oxide nanoparticles for efficient carbon dioxide capture.

Hypothesis: Carbon based nanofibrous materials are considered to be promising sorbents for the CO capture and storage. However, the precise control of porous structure with flexibility still remains a challenging task. In this research, we report a simple strategy to develop tin oxide (SnO) embedded, flexible and highly porous core-shell structured carbon nanofibers (CNFs) derived from polyacrylonitrile (PAN)/polyvinylidene fluoride (PVDF) core-shell nanofibers.

Carbon-Nanoplated CoS@TiO Nanofibrous Membrane: An Interface-Engineered Heterojunction for High-Efficiency Electrocatalytic Nitrogen Reduction.

Developing noble-metal-free electrocatalysts is important to industrially viable ammonia synthesis through the nitrogen reduction reaction (NRR). However, the present transition-metal electrocatalysts still suffer from low activity and Faradaic efficiency due to poor interfacial reaction kinetics. Herein, an interface-engineered heterojunction, composed of CoS nanosheets anchored on a TiO nanofibrous membrane, is developed.

Constructing Ionic Gradient and Lithiophilic Interphase for High-Rate Li-Metal Anode.

Li metal is the optimal choice as an anode due to its high theoretical capacity, but it suffers from severe dendrite growth, especially at high current rates. Here, an ionic gradient and lithiophilic inter-phase film is developed, which promises to produce a durable and high-rate Li-metal anode. The film, containing an ionic-conductive Li La TiO nanofiber (NF) layer on the top and a thin lithiophilic Al O NF layer on the bottom, is fabricated with a sol-gel electrospinning method followed by sintering.

Preparation supported heteropoly (acid)/polyaniline catalysts and catalytic synthesis of tributyl citrate.

A series of polyaniline supported heteropoly acids were prepared through a simple method at room temperature. The obtained heterogeneous catalysts were comprehensively characterized by powder FTIR spectroscopy, UV-vis spectra, NH temperature programmed desorption (TPD) and scanning electron microscopy (SEM). The influence of various process parameters such as heteropoly loading (10 to 25 wt%), catalyst amount (3-5%), molar ratio of -butanol to citric acid (3 to 5), and reaction time (3.

Corncoblike, Superhydrophobic, and Phase-Changeable Nanofibers for Intelligent Thermoregulating and Water-Repellent Fabrics.

The comfort and protection of clothes are critically important for human well-being in life; however, constructing multifunctional fabrics with excellent thermoregulating and water-repellent performance still presents an exciting scientific challenge and a significant technological advancement. Therefore, we report a novel and straightforward methodology to fabricate corncoblike and phase-changeable nanofibers by incorporating -octadecane phase change capsules (PCCs) for creating water-repellent and thermoregulating nanofibrous membranes. This strategy causes PCC to be uniformly distributed on the nanofibers to form a unique corncoblike structure, preventing the abscission of PCC and the leakage of the phase change ingredient (-octadecane).

An ultrathin bacterial cellulose membrane with a Voronoi-net structure for low pressure and high flux microfiltration.

Developing a porous membrane to effectively remove sub-micron sized contaminants from water while maintaining a high permeate flux with energy-saving properties is of great significance but extremely challenging. Herein, we describe a feasible strategy to create a bacterial cellulose (BC) membrane with a continuous Voronoi-net structure via combining evaporation-induced self-assembly with chemical cross-linking. This presented approach allows micro-length BC nanofibers to self-assemble in the electrospun polyacrylonitrile (PAN) nanofibrous frameworks to form stable and continuous Voronoi-like nanonets, endowing the obtained membrane with small pore size, stable pore structure, high porosity, favourable interconnectivity, and ultrathin membrane thickness.

Stable Confinement of Black Phosphorus Quantum Dots on Black Tin Oxide Nanotubes: A Robust, Double-Active Electrocatalyst toward Efficient Nitrogen Fixation.

A conceptually new, metal-free electrocatalyst, black phosphorus (BP) is presented, which is further downsized to quantum dots (QDs) for larger surface areas, and thus, more active sites than the bulk form. However, BP QDs are prone to agglomeration, which inevitably results in the loss of active sites. Besides, their poor conductivity is not favorable for charge transport during electrolysis.