Hydrogel-Gated MXene-Graphene Field-Effect Transistor for Selective Detection and Screening of SARS-CoV-2 and Bacteria.

Field-effect transistor (FET) biosensors have significantly attracted interest across various disciplines because of their high sensitivity, time-saving, and label-free characteristics. However, it remains a grand challenge to interface the FET biosensor with complex liquid media. Unlike standard liquid electrolytes containing purified protein content, directly exposing FET biosensors to complex biological fluids introduces significant sensing noise, which is caused by the abundance of nonspecific proteins, viruses, and bacteria that adsorb to the biosensor surfaces.

Music Therapists' Job Satisfaction and Related Factors: A Cross-Sectional Survey in Five European Countries and Israel.

Studies on the job satisfaction of music therapists are needed for the growth of the profession and their findings may help to improve the well-being of practitioners. The aim of this cross-sectional survey was to explore the levels of satisfaction of music therapists with their profession and to identify the factors influencing their job satisfaction in several countries where this topic is under researched (Israel, Germany, Spain, Switzerland, Czech Republic, and Austria). Descriptive and inferential statistics of data obtained through an online survey of 439 practicing music therapists found the highest levels of job satisfaction were reported in Spain and the lowest levels were reported in Germany.

Fracture Toughness Characteristics of Stacked Bilayer Graphene via Far-Field Displacement Measurements.

Mechanical properties of graphene, e.g., strength, modulus, and fracture toughness are extremely sensitive to flaws.

Impact of educational and psychological interventions compared with standard care in college/university students with autism spectrum disorder: a systematic review protocol.

Objective: This review will explore the impact of educational and psychological interventions on educational, social, behavioral, and mental health outcomes in students with autism spectrum disorder in tertiary education.

Introduction: This systematic review will inform a new guideline on support for students with autism spectrum disorder in the tertiary education environment. These students face multiple educational, behavioral, social, and health-related problems that require effective interventions.

Effect of low frequency sound vibration on acute stress response in university students-Pilot randomized controlled trial.

Background: Low frequency sound (LFS, combined with music listening) is applied by practitioners in vibroacoustic therapy who report a positive effect of this intervention on acute stress response. However, there is a lack of research on this topic and studies with mainly objective measurements are scarce.

Materials And Methods: In this pilot double-blinded Randomized Controlled Trial we used a multimodal approach to measurement of acute stress response in 54 international university students attending a university summer school in Olomouc, the Czech Republic who were individually randomized into a group receiving LFS vibration and a control group.

Ionic liquid functionalized Janus nanosheets.

Ionic liquid functionalized Janus nanosheets are synthesized by selective treatment of the imidazolin terminated side of Janus nanosheets while the other side is preserved. The Janus performance of the nanosheets and thus emulsion stability are reversibly triggered by anion exchange.

Janus nanodisc of diblock copolymers.

Janus nanodiscs of diblock copolymers are prepared by stepwise disassembly of PS-b-P4VP disc-stacked particles. The Janus nanodiscs are uniform in thickness and regular in contour. By preferential growth of functional materials at the positively charged P4VP side, the composition, microstructure, and performance of the Janus nanodiscs are tunable.

Janus micro-reactors.

Janus hollow spheres, with different compositions compartmentalized onto both interior and exterior surfaces of the same shell and P25 nanoparticles encapsulated in the cavities, are synthesized by the ultrasonic spray method to selectively enrich desired reagents in a confined environment for further reaction.

Photoluminescent poly(ether ether ketone)-quantum dot composite films.

A fluoropoly(ether ether ketone) (FPEEK) demonstrating blue fluorescence was developed as a flexible, transparent membranous matrix for the incorporation of quantum dots (QDs) to fabricate a composite photoluminescent film which is promising as a self-referenced temperature sensor.

pH triggered injectable amphiphilic hydrogel containing doxorubicin and paclitaxel.

Injectable hydrogel with hydrophobic microdomains for incorporating both hydrophilic and hydrophobic drugs, herein doxorubicin hydrochloride (DOX) and paclitaxel (PTX), was synthesized through dynamic bonding of glycol chitosan and benzaldehyde capped poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) via Schiff's reaction triggered by environmental pH. Rheology tests show that the inclusion of hydrophilic drug decreases the gelation time and gains more robust gel, while the addition of hydrophobic drug has opposite influences. Dual-drug release from the DOX+PTX loaded gels was observed and the release rate can be accelerated by decreasing the environmental pH from physiological (7.

Polymer nanotubes toward gelating organic chemicals.

Crosslinked polymer nanotubes are large scale synthesized. The method is based on fast cationic polymerization using immiscible initiator nanodroplets. Nanoporous network processed from the nanotubes is superhydrophobic, which can absorb all the tested organic chemicals forming robust gels.

Janus hollow spheres by emulsion interfacial self-assembled sol-gel process.

Janus hollow silica spheres with an asymmetric shell are synthesized by self-assembled sol-gel process at an emulsion interface, and desired materials can be preferentially laden inside the cavities from their surroundings.

Carbazole-based polymers for organic photovoltaic devices.

Polymers based upon 2,7-disubstituted carbazole have recently become of great interest as electron-donating materials in organic photovoltaic devices. In this tutorial review the synthesis of such polymers and their relative performances in such devices are surveyed. In particular structure-property relationships are investigated and the potential for the rational design of materials for high efficiency solar cells is discussed.

Large scale synthesis of Janus submicron sized colloids by wet etching anisotropic ones.

Janus colloids have inspired growing interests due to their diverse potential applications. Herein, we present a facile approach to fabricate Janus submicron sized colloids by the selective etching of anisotropic colloids. Size ratio, microstructure and composition are tunable.

A simple and efficient method using polymer dispersion to prepare controllable nanoporous TiO2 anodes for dye-sensitized solar cells.

An efficient method using a polymer dispersion (PD) based on a copolymer of styrene and butyl acrylate to prepare TiO2 electrodes for dye-sensitized solar cells (DSCs) was introduced. The obtained TiO2 nanoporous film was investigated by scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) analysis. A porous structure with pore size distribution from tens of nanometers to several hundred nanometers or even micrometers was characterized.

Exciton diffusion controlled quantum efficiency in hybrid dye sensitized solar cells.

Well-ordered and uniform titania nanoparticle arrays were synthesized using diblock copolymers as structure directing agents. High molecular weight copolymers of polystyrene-b-polyethylene oxide and poly(methylmethacrylate)-b-polyethylene oxide were used to control the distance between titania nanoparticles in the range of 20-60 nm. Using these titania nanoparticle arrays and regioregular poly(3-hexylthiophene), models for a dye sensitized photovoltaic cell were assembled, in which the interparticle spacing was systematically varied.

Supramolecular Organization and Photovoltaics of Triangle-shaped Discotic Graphenes with Swallow-tailed Alkyl Substituents.

Two novel triangle-shaped discotic graphenes with swallow-like alkyl tails are synthesized; these discotic graphenes allow facile purification, control over thermotropic properties, and solution fabrication into efficient photovoltaic devices. The unique molecular design results in an extremely broad liquid-crystalline range and the ability to self-heal at low processing temperatures, which improves the performance of photovoltaic cells.