[The Occurrence and Risk Factors of Stroke Complicated by Venous Thromboembolism].

Objective: To investigate the occurrence and the risk factors of stroke complicated by venous thromboembolism.

Methods: A total of 2709 stroke patients who received treatment at our hospital between January 2018 and June 2021 were selected. The incidence of stroke complicated by venous thromboembolism was analyzed and the risk factors of stroke complicated by venous thromboembolism were investigated by logistic regression.

Facile Synthesis of FeO@Tannic Acid@Au Nanocomposites as a Catalyst for 4-Nitrophenol and Methylene Blue Removal.

A facile, cost-effective, and eco-friendly method was proposed to synthesize FeO@tannic acid@Au nanocomposites (FeO@TA@Au). First, FeO nanoparticles with diameters of 20 and 200 nm were synthesized by co-precipitation and solvothermal methods, respectively. Gold nanoparticles were deposited on magnetic FeO through tannic acid-metal-polymer intermediate-layer-mediated reductions.

Sensitive colorimetric detection of ochratoxin A by a dual-functional Au/FeO nanohybrid-based aptasensor.

A novel colorimetric aptasensor based on a Au/FeO nanohybrid was developed to detect ochratoxin A (OTA). The aptasensor is composed of a free OTA aptamer, a Au/FeO nanohybrid coated with biotinylated complementary DNA of the OTA aptamer (biotin-cDNA-Au/FeO), and free alkaline-phosphatase-labeled streptavidin (SA-ALP). The Au/FeO nanohybrid not only immobilizes biotin-cDNA but also magnetically separates SA-ALP from the sample solution.