Transformation mechanism, kinetics and ecotoxicity of kaempferol and quercetin in the gaseous and aqueous phases: A theoretical combined experimental study.

The transformation and risk assessment of flavonoids triggered by free radicals deserve extensive attention. In this work, the degradation mechanisms, kinetics, and ecotoxicity of kaempferol and quercetin mediated by ∙OH, ∙OCH, ∙OOH, and O in gaseous and aqueous environments were investigated using cell experiments and quantum chemical calculations. Three radical scavenging mechanisms, including hydrogen atom transfer (HAT), radical adduct formation (RAF) and single electron transfer (SET) were discussed.

Integration of DNA-Decorated Hapten in Emergency Immunoassays for Antibody and Small-Molecule Detection: A Review.

DNA-decorated hapten (DDH)-based immunoassays have emerged, demonstrating supreme advantages in sensing applications because of their excellent sensitivity, specificity, and reliability. DDH combines both a recognition element (hapten) and a signal transduction element (DNA portion) with its highly programmable DNA structure enabling the trigger of signal transduction following a recognition event, thereby introducing a novel signal transduction mechanism to immunoassays. In this review, we provide a critical overview of recent research in the DDH-based immunoassays, which are designed to detect specific small molecules and antibodies.

Reconstruction of the Superior Capsule Using Peroneus Longus Tendon Graft Combined With Transposition of Biceps Tendon for Irreparable Massive Rotator Cuff Tears.

Background: Traditional superior capsular reconstruction (SCR) with biceps tendon transposition (TB) alone for irreparable massive rotator cuff tears (IMRCTs) has demonstrated a high retear rate, highlighting the need for alternative approaches. Therefore, SCR using a peroneus longus tendon graft (PLG) combined with TB (PLG-TB) should be clinically studied.

Purpose: To compare the clinical and radiological outcomes of SCR using the PLG-TB technique versus the TB technique alone for IMRCT.

Prevalence and risk factors of long COVID-19 persisting for 2 years in Hainan Province: a population-based prospective study.

Coronavirus disease 2019 (COVID-19) can lead to persistent symptoms, sequelae, and other medical complications that may last for weeks or months after recovery. The aim of the study is to assess the prevalence and risk factors of long COVID-19 persisting for 2 years in Hainan Province, China, to aid in its recognition, prevention, and treatment. Between July and August 2022, 960 individuals with confirmed SARS-CoV-2 infection in Hainan, China, were recruited.

Thermal response of deep monomictic reservoir under different selective withdrawal types.

Selective withdrawal is an effective measure to mitigate the adverse effects caused by reservoir construction. The main types of selective withdrawal include multi-level withdrawal and internal weir withdrawal, each with distinct characteristics. It is urgent to elucidate the thermal response differences between these two types of selective withdrawal to improve scheduling accuracy.