Covalent organic framework-loaded silver nanoparticles as robust mimetic oxidase for highly sensitive and selective colorimetric detection of mercury in blood

Abstract

Covalent organic frameworks (COFs) were fabricated with hierarchical flower-like hollow structure, possessing large specific surface area, high porosity, and excellent environmental stability. In-situ growth of noble silver nanoparticles (AgNPs) onto...

Photoelectrochemical Sensor with a Z-Scheme Fe2O3/CdS Heterostructure for Sensitive Detection of Mercury Ions

“…The PEC sensor showed good operation stability. , At a concentration of 1.0 nM Hg 2+ , the maximum and minimum photocurrent under continuous 15 switching lamps were 15.2 and 14.8 μA (Figure C), respectively. The relative standard deviation of photocurrents for 15 measurements was 2.7%.…”

Functionalized ZnMnFe2O4–PEG–FA nanoenzymes integrating diagnosis and therapy for targeting hepatic carcinoma guided by multi-modality imaging

“…24 However, the application of natural or chemically synthesized enzymes is limited due to their poor stability, challenges of large-scale production and weak targeting. 21 Recently, nanozymes, a class of nanomaterials possessing natural enzyme-like activity, have seen widespread application, namely, in environmental areas, 25,26 the food safety field 27 and in several biomedical modalities including antibacterial and wound-healing treatments as well as detection because of their typical characteristics, such as good stability, excellent enzyme activity, easy modification and improved targeting. 7,[28][29][30] Furthermore, since nanozymes respond to tumour-specific weakly acid microenvironments and • OH in situ, they can prevent side effects in normal tissues.…”

Conductive phthalocyanine-based porous organic polymer as sensing platform for rapid determination of vanillin

“…27 Their versatility is further exhibited in applications such as gas adsorption and separation, catalysis, supercapacitors, optoelectronic devices, sensors, and energy transduction. 24,[28][29][30][31][32] Phthalocyanine (Pc) is considered as an ideal foundational unit for developing POPs owing to its remarkable attributes. Pc is nitrogen-rich, highly conjugated, planar macrocyclic compound.…”

“…27 Their versatility is further exhibited in applications such as gas adsorption and separation, catalysis, supercapacitors, optoelectronic devices, sensors, and energy transduction. 24,28–32…”