Yamagata University

Effects of Two Types of Multi‐Walled Carbon Nanotubes Used for Carbon Fiber Surface Modification on Tensile Properties of Polycarbonate Composites

ABSTRACT In this study, carbon fibers (CFs) coated with two types of multi‐walled carbon nanotubes (MWCNTs), manufactured by Nanocyl SA (MWCNT‐a) or TPR Co. Ltd. (MWCNT‐b), were prepared using a reactive polymer, and the effects of the coated MWCNTs on the tensile properties of p...

Interfacially Engineered Alginate/Hydroxyapatite Biocomposites With High Strength and Toughness

ABSTRACT Inspired by the high toughness of cortical bone, we aimed to develop biomass‐based structural materials by hybridizing sodium alginate (ALG‐Na) with hydroxyapatite (HAP) through in situ crystallization. Two protocols were designed: Method A, crystallizing HAP from ALG‐Na...

Metabolite profiling and molecular docking insights into the wound healing efficacy of Pelargonium zonale in a rat burn model

Pelargonium zonale has a long history of use in traditional medicine for wound healing, supported by scientific evidence of its topical, hemostatic, and antibacterial properties. The current study aims to comprehensively investigate the wound healing potential and phytochemical p...

Dibenzophenazine‐Fused Heterocyclic Luminophores: Decoding High‐Performance Organic Light‐Emitting Diodes Based on Long‐Wavelength Exciplex

ABSTRACT Developing highly efficient long‐wavelength exciplexes remains a challenge due to the constraints of the energy gap law and severe non‐radiative loss. In this study, we report a rigid nitrogen‐rich donor, 3N, featuring the first fused framework constructed from two anti‐...

Peripheral Para ‐Chalcogen‐π‐Oxygen Fusion Strategy for High‐Performance Deep‐Blue Narrowband MR‐TADF OLEDs

ABSTRACT Narrowband deep‐blue emitters featuring a targeted emission peak (465 ± 3 nm) and high reverse intersystem crossing (RISC) rate are highly desirable for ultra‐high‐definition displays. Herein, guided by the para ‐chalcogen‐π‐oxygen alignment strategy, two novel derivativ...

Mechanical Recovery of Damaged Glass Fiber Reinforced Polypropylene via Repetitive Sub-Melting Thermal Annealing: A Molecular and Structural Study

This study clarifies the mechanical recovery and structural retention of damaged glass fiber-reinforced polypropylene (PP/GF) composites subjected to repetitive sub-melting thermal annealing at 160 °C. Initial thermal annealing increased matrix crystallinity from 0.30 to 0.37 (+2...

Improved Crystallization-Front Dynamics Reduce Buried-Interface Defects in Perovskite Solar Cells

Abstract Inverted perovskite solar cells have achieved substantial efficiency gains owing to advances in surface passivation; as a result, progress is now limited by buried defects at the perovskite/hole transport layer (HTL) interface. During top-down perovskite crystallization,...

Dent corn yield and grain protein responses to integrated composted sewage sludge and liquid centrate fertilization compared with chemical fertilizer

Population growth and urbanization have increased wastewater generation, producing large volumes of sewage sludge requiring sustainable management. Anaerobic digestion and composting produce liquid centrate (LC) and composted sewage sludge (CSS), which can reduce dependence on sy...

Elucidating the Key Role of Phosphorescent Sensitizers in High‐Performance, Long‐Lifetime Hyperphosphorescent Organic Light‐Emitting Devices Based on a Multi‐Resonance Thermally Activated Delayed Fluorescence Emitter

Hyperphosphorescent organic light‐emitting devices that employ phosphorescent sensitizers are essential for achieving low‐power consumption, long‐lifetime, and high‐resolution displays, yet the roles of sensitizers in device stability remain unclear. In this study, we investigate...

Impact of adjuvant chemotherapy on renal impairment patients following radical nephroureterectomy in upper tract urothelial carcinoma: a multicenter retrospective study

Abstract To evaluate the impact of adjuvant platinum-based chemotherapy (AC) on oncological outcomes in high-risk upper tract urothelial carcinoma (UTUC) patients with postoperative renal impairment following radical nephroureterectomy (RNU). Among 1050 patients who underwent RNU...

Prognosis and risk factors by histologic type of malignant ovarian germ cell tumors in Japan: a JSOG gynecologic tumor registry-based study

Objective: This study evaluated prognosis and risk factors for overall survival (OS) in malignant ovarian germ cell tumors (MOGCTs) using data from the Japan Society of Obstetrics and Gynecology tumor registry.Methods: Data from 1,538 MOGCT patients (2004MOGCT patients ( -2019) )...

Reassessment of a cosmic ray increase event in 1279/1280 CE using carbon-14 records of tree rings.

Extreme solar energetic particle events (ESPEs) rarely occur on the Sun, as known from cosmogenic isotope proxies, the primary being 14C measured in tree rings. Several such events have been identified in tree-ring 14C data as sharp spikes. The most recent spike, around 1279 CE,...

Total Synthesis of the Antifungal Clinical Candidate ASP2397 Cyclohexapeptide Facilitated by the Chemo-selective Reduction of Secondary N -Benzyloxyamides

Abstract ASP2397 is a siderophore-like cyclic hexapeptide with potent and rapid fungicidal activity against Aspergillus species. We report here its first total synthesis, enabled by an unprecedented one-pot chemoselective reduction of secondary N-benzyloxyamides that strictly pre...

How Polymer ChainsRemember Their Crystalline Past:Simulations Uncover the Molecular Origin of Melt Memory

Abstract Melt memory in semicrystalline polymers is the remarkable ability of polymer chains to retain structural information from a prior crystalline state after being heated above the melting temperature. This phenomenon can induce extraordinary self-nucleation and strongly inf...