Simultaneous Ring-Opening and Dehydrogenation of Diarylethene Induced by Tunneling Electrons.

Understanding the reversible transformation between two isomeric states of organic molecules under external stimulation is essential for advancing single-molecule device development. Photochromic diarylethene (DAE) derivatives are promising candidates for single molecular switching elements. This study investigates the single-molecule reactions of the closed-form isomer of a DAE derivative on Cu(111) using scanning tunneling microscopy (STM).

Incidence and risk of infections in patients with ankylosing spondylitis receiving biologic therapies: A prospective observational study using the KOBIO registry.

Objective: This study aimed to assess infection occurrence of infection and risk factors among ankylosing spondylitis (AS) patients treated with biologics in a real-world setting.

Methods: This prospective observational cohort study included AS patients from the Korean College of Rheumatology BIOlogics (KOBIO) registry who initiated or switched to biologic agent between December 2012 and July 2023. The primary outcome was the first occurrence of any infection, ranging from mild to severe, classified by organ system.

Plasmon-Driven Gold Nanopillar Multiarrayed Gene Amplification Methodology for the High-Throughput Discrimination of Pathogens.

Molecular diagnosis limitations, including complex treatment processes, low cost-effectiveness, and operator-dependent low reproducibility, interrupt the timely prevention of disease spread and the development of medical devices for home and outdoor uses. A newly fabricated gold nanopillar array-based film is presented for superior photothermal energy conversion. Magnifying the metal film surface-to-volume ratio increases the photothermal energy conversion efficiency, resulting in a swift reduction in the gene amplification reaction time.

Effect of scan path on accuracy of complete arch intraoral scan.

Purpose: This study aimed to compare the accuracy of an alternative scan path with that of traditional scan paths to obtain a more accurate method for complete arch scans.

Materials And Methods: A mandibular stone cast, including tooth preparations for the inlay, crown, and fixed prosthesis, was scanned 10 times using four different scan paths (A, B, C, and D). The scans were converted into stereolithography files, resized, and superimposed onto a control file obtained from a desktop scanner.

Network Analysis of Legg-Calve-Perthes Disease and Its Comorbidities.

: Legg-Calvé-Perthes disease (LCPD) is characterized by idiopathic avascular necrosis of the femoral head in children. There are several hypotheses regarding the cause of LCPD; however, the exact cause remains unclear. Studies on comorbidities can provide better insight into the disease.