Electrical Contacts to Graphene by Postgrowth Patterning of Cu Foil for the Low-Cost Scalable Production of Graphene-Based Flexible Electronics.

Numerous studies have focused on graphene owing to its potential as a next-generation electronic material, considering its high conductivity, transparency, superior mechanical stiffness, and flexibility. However, cost-effective mass production of graphene-based electronics based on existing fabrication methods, such as graphene transfer and metal formation, remains a challenge. This study proposes a simple and efficient method for creating electrical contacts with graphene.

Validity of Quantitative Values of Quantitative Light-induced Fluorescent (QLF) Device for Pulp Diagnosis of teeth with Cracks.

Introduction: The Quantitative Light-Induced Fluorescence (QLF) device provides both the visual information of crack lines on tooth surfaces and quantitative values for fluorescence reactions. The aim of this study was to evaluate the correlation and assess the usefulness of QLF quantitative values in pulp diagnosis of teeth with cracks.

Methods: Pulp diagnosis was performed on 76 teeth with cracks according to the American Association of Endodontics's guidelines, and their QLF images were captured.

Role of FOXO3a in LPS-induced inflammatory conditions in human dental pulp cells.

Objectives: We investigated the involvement of FOXO3a in lipopolysaccharide (LPS)-induced inflammation in primary human dental pulp cells (HDPCs).

Methods: HDPCs that were isolated from donors undergoing tooth extraction for orthodontic purposes were cultured with or without 1 μg/mL LPS at various intervals. The FOXO3a localization in the HDPCs was verified using immunofluorescence.

Learning Curve of Microsurgical Anastomosis: Training for Resident Education.

Background: Acquiring microsurgical anastomosis skills requires considerable time and effort. Moreover, appropriate and systematic training for acquiring microsurgical anastomosis skills is lacking. Therefore, this study investigated the learning curve for acquiring microsurgical anastomosis techniques among orthopaedic surgery residents.

One-Step Synthesis of 2-Arylquinolin-4(1)-Ones from 1-(2-Aminoaryl)-3-Arylpropan-1-Ones via Pd(II)-Catalyzed Dehydrogenative Cyclization.

In this study, we developed palladium-catalyzed dehydrogenative cyclization to transform 1-(2-aminoaryl)-3-arylpropan-1-ones into 2-arylquinolin-4(1)-ones, also known as aza-flavones which are the bioisosteres of flavones, in an atom-economic manner. This method exhibited excellent chemical compatibility with a broad substrate scope, accommodating up to 25 derivatives. Additionally, kinetic studies were performed to elucidate the reaction mechanism.