Results 71 to 80 of about 386,764 (302)

Metal‐Free Synthesis of 1,3‐Divinylimidazolidin‐2‐One

open access: yesChemistryOpen
A new one‐pot synthesis of 1,3‐divinylimidazolidin‐2‐one (DVI) starting from cheap and commercially available substances, i.e., di(chloroethyl)amine and phosgene or triphosgene was developed.
Sabine Lorenzen   +6 more
doaj   +1 more source

Local boron doping quantification in homoepitaxial diamond structures [PDF]

open access: yes, 2010
The capability of transmission electronmicroscopy (TEM) using the high angle annular dark fieldmode (HAADF,also labelled Z-contrast) to quantify boron concentration, in the high doping range between 1019cm−3 and 1021cm−3, is demonstrated.
A.J. García   +26 more
core   +4 more sources

Supraparticles Composed of Graphitic Carbon Nitride Nanoparticles and Silica‐Supported Horseradish Peroxidase as Customizable Hybrid Catalysts for Photo‐Biocatalytic Cascade Reactions in Continuous Flow

open access: yesAdvanced Functional Materials, EarlyView.
Herein presented supraparticles combine the nanoparticulate photocatalyst graphitic carbon nitride with the enzyme horseradish peroxidase, which is immobilized on silica nanoparticles. In an optimized compatibility range, both catalysts operate effectively within the hybrid supraparticles and catalyze a cascade reaction consisting of the photocatalytic
Bettina Herbig   +11 more
wiley   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

open access: yesAdvanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief   +20 more
wiley   +1 more source

Advancements in the investigation of radioactive microspheres for brachytherapy

open access: yesFrontiers in Bioengineering and Biotechnology
In clinical practice, the management of most non-surgically resectable solid tumors necessitates a multidisciplinary treatment approach. Optimal solutions involve the integration of local and systemic treatments, such as targeted immunotherapy and ...
Xiaohui Jiang   +4 more
doaj   +1 more source

Titanium reinforced boron polyimide composite [PDF]

open access: yes, 1972
Program involves development of process technique for boron-polyimide prepeg, lay-up and curing procedures for prepegs when processed under vacuum bag pressure, and development and evaluation of titanium hard points for smooth transition of loads from ...
Clark, G. A.
core   +1 more source

Light Element Abundance Patterns in the Orion Association: I) HST Observations of Boron in G-dwarfs [PDF]

open access: yes, 2000
The boron abundances for two young solar-type members of the Orion association, BD -6 1250 and HD 294297, are derived from HST STIS spectra of the B I transition at 2496.771 A.
Brown A. G. A.   +9 more
core   +3 more sources

Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

open access: yesAdvanced Functional Materials, EarlyView.
We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina   +13 more
wiley   +1 more source

Ionic‐Electronic Hydrogel‐Liquid Metal Composite Bilayer with Tissue‐Adaptive and Adhesive Properties for Closed‐Loop Neuroprosthetic System

open access: yesAdvanced Functional Materials, EarlyView.
A hydrogel–liquid metal composite peripheral nerve interface (HLB‐PNI) combines electrically durable electrodes and tissue‐adhesive hydrogel for tissue‐adaptive implantation. In nerve‐injured rats, it enables the diagnosis of sensory‐motor connectivity via stimulation and neural signal recording.
Yewon Kim   +5 more
wiley   +1 more source

Radiation hardening of metal-oxide semi-conductor (MOS) devices by boron [PDF]

open access: yes, 1974
Technique using boron effectively protects metal-oxide semiconductor devices from ionizing radiation without using shielding materials.
Danchenko, V.
core   +1 more source

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