This paper proposes a highly efficient antibacterial system based on synergistic combination of photodynamic therapy, photothermal and chemotherapy. Chitosan oligosaccharide functionalized graphene quantum dots (GQDs-COS) with short-term exposure to 450 nm visible light are used promote rapid healing in bacteria-infected wounds. The GQDs undergo strong photochemical transformation rapidly produce radical oxygen species heat under illumination, while the COS has an innate antimicrobial...

A mesoporous N,O-doped carbon@Co composite with good magnetism for efficient catalytic elimination of organic pollutants <italic>via</italic> peroxymonosulfate activation.

The solubility and photosensitive activity of phthalocyanine are crucial to photodynamic antibacterial performance. However, highly conjugated with high singlet oxygen generation efficiency tends aggregate in aqueous environments, leading poor activity. Herein, we propose a novel therapeutic platform by phthalocyanine-based polymeric photosensitizer for the efficient healing bacteria-infected wound. A prepared chain-transfer agent tertiary amino group-containing monomer applied reversible...

Recently, molybdenum disulfide (MoS

Vinylene-linked covalent organic frameworks (COFs) are considered promising heterogeneous photocatalyst candidates for synthesis because of their robust and conjugated frameworks. For the first time, a series vinylene-linked COFs decorated by halogen atoms (F, Cl, Br) were synthesized further utilized as photocatalysts C–H activation reactions. The corresponding optoelectronic properties could be precisely regulated via modulation functionalities in nanopore channel COFs. It is worth noting...

The electrocatalytic valorization of lignin provides a sustainable route to valuable chemicals under mild conditions, yet achieving high efficiency and selectivity remains challenging. Here, we develop gas diffusion electrodes (GDEs) modified with few‐layer graphene (GR) multi‐walled carbon nanotubes (MWCNT) enhance the oxygen reduction reaction (ORR) for efficient hydrogen peroxide (H2O2) generation. MWCNT‐modified GDE exhibits highest surface area conductivity, over 80% H2O2 via...

Elucidating the interfacial interaction mechanisms between biomolecules and metal surfaces is crucial for designing functionalized biomedical materials. This study employs first-principles calculations based on density functional theory (DFT) to investigate adsorption behaviors of arginine (Arg), glutamic acid (Glu), aspartic (Asp), valine (Val) magnesium (Mg) Mg alloy surfaces. The four kinds amino acids were analyzed through optimized configurations, energies (Eads), bond lengths,...

Abstract In this work, a novel xylenol orange functionalized polyvinyl alcohol fiber (PVAF‐XO) was designed and prepared through simple one‐step reaction characterized using elemental analysis, x‐ray powder diffraction (XRD), Fourier‐transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM). The PVAF‐XO exhibits excellent sensitivity to acid base solutions, featuring remarkable visual color change from pale yellow red (acid) or purple (base) within 1 s. It is shown that has...

Ceramics with high MoAlB content were rapidly synthesized via thermal explosion by using Mo/Al/B mixed powders as the raw materials. The effects of material ratio and heating mode on phase composition products studied through DSC, X-ray polycrystalline diffractometer, SEM. Results showed that ceramics contents could be prepared from 1.1Mo/1.2Al/1.05B a tubular furnace at 800 °C for 1 min. They also obtained 1.1Mo/1.1Al/1B spark plasma sintering 1000 without holding. Finally, reaction...

This study reports a protocol for the highly regioselective photocatalyzed C–H nitrosylation of imidazo[1,2-a]pyridine scaffolds at C3 position under combination visible-light irradiation and continuous flow without any external photocatalyst. involves mild safe conditions shows good tolerance to air water along with excellent functional group compatibility site selectivity, generating various 3-nitrosoimidazo[1,2-a]pyridines in yields photocatalyst-, oxidant-, additive-free...

This paper reports a simple and efficient method for the direct regioselective C3–H amination of imidazo[1,2‐a]pyridine derivatives using N‐methylsulfonamide as source PhI(OAc)2 oxidant. The proposed conversion protocol, which is characterized by mild safe reaction conditions (room temperature reaction), execution (catalyst‐free, transition‐metal‐free, additive‐free), broad substrate applicability, enables synthesis 3‐sulfonamido‐imidazo[1,2‐a]pyridine with wide range functional groups....

Abstract This work reported a highly sensitive ethanol sensor assembled from raspberry-like hierarchical Ce-doped WO 3 nanoparticles. The nanoparticles doped with different contents (0, 2, 4 and 8 at%) of Ce were synthesized by facile hydrothermal method. crystalline structure the micromorphology measured x-ray diffraction (XRD) field-emission scanning electron microscopy (FESEM), respectively. photoelectric spectroscopy (XPS) transmission (TEM) attached energy-dispersive (EDS) confirmed...

A novel N, S, B, and O-codoped carbon nanosphere-armored Co₉S₈ nanoparticle composite was established demonstrated efficient catalytic elimination of organic pollutants <italic>via</italic> peroxymonosulfate activation.

Flower-like MnP–MoS 2 was fabricated using manganese chloride and sodium hypophosphite as dopants, which exhibited superior specific capacitance rate capability.

Abstract This article proposes the preparation and microwave thermal cured (MTC) epoxy-modified phenolic fibers for first time. Epoxy-modified thermoplastic resin was prepared in acidic condition using phenol, formaldehyde, epichlorohydrin as reactants, then underwent additive reaction with formaldehyde to obtain thermosetting resin, which converted into nascent through wet spinning. Finally, were obtained different curing methods including solution cured, MTC, characterized by infrared...

ABSTRACT The high‐ortho phenolic epoxy fibers (HPEFs) were prepared by the crosslinking of heat‐meltable spun filaments derived from melt‐spinning novolac resins copolymerized among phenol, formaldehyde, and epichlorohydrin (ECH) in presence zinc acetate sulfuric acid catalyst, cured a combined solution formaldehyde hydrochloric acid. resulting heat‐treated N 2 at elevated temperature. Infrared (IR) spectrometer, thermogravimetric analysis (TGA), scanning electron microscope (SEM),...

Studying the changes in microstructure of polyester (PET) water and non-aqueous solvents is important to understand swelling mechanism PET, which can help reduce pollution during dyeing process. This study uses molecular models water, decamethyl-cyclopentasiloxane (D5) employs dynamics method simulate influence on PET. The results show that glass transition temperature (Tg) pure PET system close experimental value. Tg decreases with addition D5 solvents, free volume after adding higher...

In this paper, we report a novel and facile method of pressure-induced-flow (PIF) processing that remarkably enhanced the mechanical properties polylactic acid (PLLA)–PEG blends. The impact strength bending increased by about 20 4 times, respectively. Meanwhile, tensile elongation at break were 3 7 times higher compared with raw samples. As indicated DSC polarizing microscopy, POM, oriented spherulites present in sample after PIF processing. SEM results showed fracture surface samples became...

ZnO@CeO 2 core–shell hetero-structural nanofibers (NFs) were synthesized by a coaxial electrospinning method and the materials characterization results proved that hetero-structure was formed. Furthermore, sensing properties test indicated NFs exhibited higher response values enhanced selectivity to acetone in low concentration range (0.2–10[Formula: see text]ppm) compared with ZnO CeO NFs, which showed potential value field of diabetes diagnose. It is suggested sensitivity attributed...