Ultrasmall α-MnO with Low Aspect Ratio: Applications to Electrochemical Multivalent-Ion Intercalation Hosts and Aerobic Oxidation Catalysts.

Hollandite-type α-MnO exhibits exceptional promise in current industrial applications and in advancing next-generation green energy technologies, such as multivalent (Mg, Ca, and Zn) ion battery cathodes and aerobic oxidation catalysts. Considering the slow diffusion of multivalent cations within α-MnO tunnels and the catalytic activity at edge surfaces, ultrasmall α-MnO particles with a lower aspect ratio are expected to unlock the full potential. In this study, ultrasmall α-MnO (<10 nm) with a low aspect ratio (c/a ≈ 2) is synthesized using a newly developed alcohol solution process.

Acetonitrile-Based Highly Concentrated Electrolytes for High-Power Organic Sodium-Ion Batteries.

Sodium croconate, a high-voltage organic cathode material, can be applied to high-energy-density and cost-effective organic sodium-ion batteries (OSIBs) as an alternative to traditional lithium-ion batteries. However, organic molecular cathodes generally dissolve into the electrolyte, leading to poor cyclability. Thus, an electrolyte that can address the present limitations and further facilitate the fabrication of highly reversible OSIBs must be developed.

One hundred cases of Rezum water vapor thermal therapy for benign prostatic hyperplasia: Real-world data at a single institution in Japan.

Objective: The objective of our study was to assess the efficacy of Rezum, a minimally invasive surgical treatment, for patients with lower urinary tract symptoms related to benign prostatic hyperplasia (BPH) in real-world clinical practice at a single institution in Japan.

Materials And Methods: We conducted a prospective study involving 100 patients who underwent the Rezum procedure between October 2022 and February 2024. We analyzed patient backgrounds that are compliant with Japanese regulations and assessed descriptive outcomes such as symptom scores, peak flow in uroflowmetry, post-void residual (PVR) volume, and prostate volume (PVol).

Vasculature-on-a-Chip with a Porous Membrane Electrode for In Situ Electrochemical Detection of Nitric Oxide Released from Endothelial Cells.

Vasculature-on-a-chip is a microfluidic cell culture device used for modeling vascular functions by culturing endothelial cells. Porous membranes are widely used to create cell culture environments. However, in situ real-time measurements of cellular metabolites in microchannels are challenging.

Quinoid-Based Three-Dimensional Metal-Organic Framework Fe(dhbq): Porosity, Electrical Conductivity, and Solid-State Redox Properties.

We report the synthesis, characterization, and electronic properties of the quinoid-based three-dimensional metal-organic framework [Fe(dhbq)]. The MOF was synthesized without using cations as a template, unlike other reported Xdhbq-based coordination polymers, and the crystal structure was determined by using single-crystal X-ray diffraction. The crystal structure was entirely different from the other reported [Fe(Xdhbq)]; three independent 3D polymers were interpenetrated to give the overall structure.