We report the discovery that boron nitride nanotubes (BNNTs), isosteres of CNTs with unique physical properties, are inherently noncytotoxic. Furthermore, we developed a biomemetic coating strategy to interface BNNTs proteins and cells. Finally, showed can deliver DNA oligomers interior cells no apparent toxicity. This work suggests may be superior for use as biological probes in biomaterials.

Technologies for introducing molecules into living cells are vital probing the physical properties and biochemical interactions that govern cell's behavior. Here, we report development of a nanoscale cell injection system (termed nanoinjector) uses carbon nanotubes to deliver cargo cells. A single multiwalled nanotube attached an atomic force microscope (AFM) tip was functionalized with via disulfide-based linker. Penetration membranes this "nanoneedle" controlled by AFM. The following...

Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H *OH intermediates. surfaces exist different valence states potential range, dissociating water differently generating two distinct *H, resulting...

Abstract The rapid development of smart wearable and integrated electronic products has urgently increased the requirement for high‐performance microbatteries. Although few lithium ion microbatteries based on organic electrolytes have been reported so far, problems, such as undesirable energy density, poor flexibility, inflammability, volatility toxicity, high cost restrict their practical applications in above‐mentioned products. In order to overcome these a low quasi‐solid‐state aqueous...

Mining activities exert a far-reaching impact on the quality of groundwater, and health problems caused by heavy metal pollution have attracted global attention. In this study, inductively coupled plasma-mass spectrometry (ICP-MS) was employed to determine contents 8 metals (Cd, Cr, As, Fe, Mn, Cu, Zn, Pb) in shallow groundwater samples retrieved from mining area northern Anhui. Multivariate statistical methods were adopted analyze distribution source evaluate 5% 95% risks based Monte Carlo...

Three emissive bridged-triphenylamine derivatives are designed and synthesized by incorporating carbon (DQAO), oxygen (OQAO), sulfur (SQAO) atoms with two carbonyl groups. The fully bridged geometry unique frontier molecular orbital distribution reveal its potential as narrowband thermally activated delayed fluorescence emitters. DQAO-, OQAO-, SQAO-based organic light-emitting diodes exhibit the maximum external quantum efficiency (EQEmax) of 15.2%, 20.3%, 17.8% for blue, green, yellow, respectively.

Zn-air battery technologies have received increasing attention, while the application is hindered by sluggish kinetics of oxygen evolution reaction (OER) and reduction (ORR). In order to explore an efficient method fabricate a high-performance electrocatalyst via modification advanced nanostructure, coaxial electrospinning with in-situ synthesis subsequent carbonization construct 3D flexible Janus-like electrocatalysts developed. The resulting Janus nanofibers unique core-shell hollow fiber...

Abstract Development of polymer donors with simple chemical structure and low cost is great importance for commercial application organic solar cells (OSCs). Here, side‐chain random copolymer PMQ‐Si605 a simply 6,7‐difluoro‐3‐methylquinoxaline‐thiophene backbone 5% siloxane decoration side chain synthesized in comparison its alternating PTQ11. Relative to molecular weight ( M n ) 28.3 kg mol −1 PTQ11, the minor beneficial achieving higher up 51.1 . In addition, can show stronger aggregation...

Abstract The practical application of room‐temperature sodium‐sulfur (RT Na–S) batteries is blocked by the notorious shuttle effect sodium polysulfides (NaPSs) and sluggish refox reaction kinetics. Single‐atom catalysts (SACs) have been widely studied for boosting energy storage performance RT Na‐S batteries. Nevertheless, catalytic centers SACs reported so far focused mainly on symmetrical metal–N 4 structures, which offer weak bonding affinity toward polar NaPSs, leading to detrimental...

A facile and environmentally friendly strategy using UV irradiation has been successfully developed for the preparation of an Au–reduced graphene oxide (Au–RGO) nanocomposite. The as-prepared nanocomposite was analysed characterized by scanning electron microscopy (SEM), transmission (TEM), Raman spectroscopy, UV-Vis absorption spectroscopy X-ray photoelectron (XPS). results demonstrated that simultaneous reduction formation Au nanoparticles were achieved. obtained with average diameter 25.7...

Abstract A new kind of SnO 2 nanotubes loaded with Ag O nanoparticles can be synthesized by using Ag@C coaxial nanocables as sacrificial templates. The composition silver in controlled tuning the compositions metallic templates, and morphology tubular structures changed use different thicknesses carbonaceous layer. This simple strategy is expected to extended for fabrication similar metal‐oxide doped nanocable In contrast @Ag@C well other types reported previously, O‐doped exhibit excellent...

Rational design of hollow micro- and/or nano-structured cathodes as sulfur hosts has potential for high-performance lithium-sulfur batteries. However, their further commercial application is hindered because infusing into hard to control and the interactions between high loading electrolyte are poor. Herein, we designed hierarchical porous carbon nanospheres with radially inwardly aligned supporting ribs mitigate these problems. Such a structure could aid infusion maximize utilization owing...

Abstract Three isomeric boron‐containing thermally activated delayed fluorescent (TADF) emitters, namely m ‐AC‐DBNA, p and ′‐AC‐DBNA, are constructed by incorporating an electron‐donor acridine (AC) moiety into meta ‐, para or ′‐positions of electron‐accepting boron‐embedded rigid framework. The substitutional positions found to dramatically affect thermal, photophysical, electroluminescent (EL) properties. experimental results show that the ‐substituted compound ( ‐AC‐DBNA) exhibits higher...

A novel "201" nanostructure composite consisting of two-dimensional MoS2 nanosheets, zero-dimensional Ni nanoparticles and one-dimensional carbon nanotubes (CNTs) was prepared successfully by a two-step method: nanopaticles were deposited onto the surface few-layer nanosheets wet chemical method, followed vapor deposition growth CNTs through catalysis nanoparticles. The as-prepared 201-MoS2-Ni-CNTs composites exhibit remarkably enhanced microwave absorption performance compared to Ni-MoS2 or...

Abstract Cycling lithium cobalt oxide (LiCoO 2 ) to a potential higher than 4.35 V (vs Li + /Li) can obtain an enticing capacity, but suffers from inferior structural stability. Herein, ingenious Li‐deintercalation/doping strategy is developed synthesize the lanthanide‐doped LiCoO (lanthanide (Ln) = praseodymium, neodymium, samarium, europium, gadolinium, erbium, or lutetium) with Ln occupying Li‐sites. Electrochemical measurements show that cycling stability of Ln‐doped increases as...

Vanadium oxide nanotubes were synthesized as the main product by hydrothermal self-assembling from ammonium metavanadate (NH(4)VO(3)) and organic molecules structure-directing templates. Several kinds of templates including primary amines (C(n)H(2n+1)NH(2)), alpha,omega-diamines (H(2)N[CH(2)](n)NH(2)), quaternary salt (CTAB) demonstrated to be appropriate for formation nanotubes. The morphologies structures characterized X-ray powder diffraction (XRD), transmission electron microscopy (TEM),...

Hollow and porous In2O3 nanospheres have been prepared by the hydrolysis of InCl3 using carbonaceous spheres as templates in combination with calcination. Based on observation scanning electronic microscopy (SEM) transmission electron (TEM), it has revealed that as-prepared a uniform diameter around 200 nm hollow structures thin shells about 30 consisting numerous nanocrystals nanopores. Owing to structures, possessing more active surface area exhibit good response reversibility some organic...