Herein, we report self-emulsifying anionic unsaturated polyester emulsions with different chain segments as novel sizing agents. The epoxy modified unsaturated polyester emulsions were synthesized via a self-emulsifying technique with no organic solvents. Emulsions were characterized by dynamic light scattering (DLS), Zeta potential, centrifuge, and cryo-scanning electron microscopy (Cryo-SEM). The results showed that the emulsions obtained were mono-dispersed nanospheres that had adequate colloidal stability. The maximum Zeta potential of the sizing agent is −52.88 mV. In addition, these emulsions were investigated as the sizing agents in order to improve interfacial adhesion between carbon fibers (CFs) and unsaturated polyester resin (UPR). Compared with the CFs sized with the commercial epoxy sizing agent, the interlaminar shear strength (ILSS) of CF/UPR composites from the CFs sized by these emulsion sizing agents with three different chain structures were enhanced by 25%, 29%, and 42%, respectively. The emulsion sizing agent composed of a flexible segment synthesized from adipic acid, neopentyl glycol, and maleic anhydride is most effective and can achieve the highest enhancement of the ILSS of CF/UPR composites.

A ratiometric electrochemical sensor was constructed for sensitive 4-acetamidophenol (4-AP) detection. Ferrocene (Fc) was attached onto a self-assembly of graphene oxide (GO) to form a GO–Fc complex with electrostatic interactions. Furthermore, Nafion was added into the complex in a certain ratio to immobilize the complex. The GO–Fc–Nafion complex was drop-coated on the surface of a glassy carbon electrode (GCE) to prepare a GO–Fc–Nafion/GCE sensing platform. There was a strong, plotted linear relationship between I_4-AP/I_Fc and 4-AP concentration in the range from 1 to 100 μM, with a low detection limit of 0.2 μM. This fabricated ratiometric electrochemical sensing platform exhibited high sensitivity and stability responses towards 4-AP, over potential interfering species. Experimental results confirmed high detection stability and recoveries, indicating its high feasibility for 4-AP detection in biological samples.

A highly efficient 3D flower MoS ₂ (3D-FM)-based heterostructure photocatalyst (3D-FM/BiOI) was successfully obtained via a simple hydrothermal synthesis strategy.

A polymer gel with tissue-compatible modulus, excellent fatigue resistance, minimal strain hysteresis, robust self-bonding and skin adhesion, and superior insulation, which can be used for developing compact, high-performance flexible electronics.

Metal phosphides and phosphate-based materials have received significant attention due to their high electrocatalytic activity, adjustable structure composition and stability. Herein, we introduce a phytic acid-based CoMn bimetallic metal–organic (PA–CoMn) aerogel as an electrode modifier, derived from PA and mixed transition metal ions (Co²⁺, Mn²⁺). We explored its performance in the sensitive sensing of non-steroidal anti-inflammatory drug 4-acetaminophenol (4-AP) for the first time. We investigated the electrochemical behavior of the modified screen-printed carbon electrode (SPCE) by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The PA–CoMn-1 : 1.5 : 0.5 aerogel/Nafion/SPCE proved to be highly sensitive and selective towards the detection of 4-AP. A double linear response was recorded for 4-AP over the range of 1 μM to 0.1 mM and lower detection limits (LOD) of 0.2133 μM. The applicability of the PA–CoMn-1 : 1.5 : 0.5 aerogel/Nafion/SPCE in the detection of 4-AP in commercial drug samples with good recoveries was investigated, confirming the great potential of PA–CoMn-1 : 1.5 : 0.5 aerogel/SPCE in clinical applications.