Results 111 to 120 of about 658,355 (327)

Nano‐Patterned CuO Nanowire Nanogap Hydrogen Gas Sensor with Voids

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
Sub‐5‐ppb hydrogen (H2) detection and sub‐10‐s response and recovery times are achieved based on nano‐patterned polycrystalline CuO nanowires nanogap gas sensors with voids using electron‐beam lithography and unique annealing processes. Pre‐H2 annealing, void‐generating oxidation, and downscaled nanogap electrodes are key to improving the sensing ...
Muqing Zhao, Ryosuke Nitta, Seiichiro Izawa, Jun‐ichi Yamaura, Yutaka Majima   +4 more
wiley   +1 more source

Erosive effect of an antihistamine liquid formulation on bovine teeth: influence of exposure time

Brazilian Journal of Oral Sciences, 2015
Aim: To evaluate, in vitro, the effect of an oral antihistamine liquid formulation on roughness and topography of bovine enamel and the influence of exposure time on its erosive effect.
Viviane Santos da Silva Pierro, Beatriz Romeiro Furtado, Michele Villardi, Lúcio Mendes Cabral, Eduardo Moreira Silva, Lucianne Cople Maia   +5 more
doaj   +1 more source

The influence of ionization events on atmospheric ozone [PDF]

Atmospheric ionization events can modify the concentration of neutral species in the stratosphere and mesosphere. In particular, ozone is destroyed because of the production of significant quantities of odd nitrogen and hydrogen compounds which react ...
Aikin, A. C.
core   +1 more source

Neurotransmitter modulation of extracellular H+ fluxes from isolated retinal horizontal cells of the skate

, 2004
Self-referencing H+-selective microelectrodes were used to measure extracellular H+ fluxes from horizontal cells isolated from the skate retina. A standing H+ flux was detected from quiescent cells, indicating a higher concentration of free hydrogen ions
Birnbaum, Andrea D., Hammar, Katherine, Malchow, Robert Paul, Molina, Anthony J.A, Smith, Peter J.S., Verzi, Michael P., Yamoah, Ebenezer N.   +6 more
core   +2 more sources

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Erosive potential of different types of grape juices

Brazilian Oral Research, 2012
The purpose of the present study was to evaluate the erosive potential of different types (concentrated and powdered) and commercial brands of industrialised grape juices. The pH of all five fruit drinks was measured at two time points: immediately after
Ginna Kércia Matos Gonçalves, Camila de Almeida Brandão Guglielmi, Fernanda Nahás Pires Corrêa, Daniela Prócida Raggio, Maria Salete Nahás Pires Corrêa   +4 more
doaj  

Multiple carbonate system parameters independently govern shell formation in a marine mussel

Communications Earth & Environment
Calcification is vital to marine organisms that produce calcium carbonate shells and skeletons. However, how calcification is impacted by ongoing environmental changes, including ocean acidification, remains incompletely understood due to complex ...
Aaron T. Ninokawa, Alisha M. Saley, Roya Shalchi, Brian Gaylord   +3 more
doaj   +1 more source

Dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA

Brazilian Oral Research, 2010
This in vitro study evaluated (1) the dissolution of bovine pulp tissue in solutions consisting of varying NaOCl concentrations and combined with EDTA; and (2) the pH of these solutions before and after the experiment.
Luis Eduardo Duarte Irala, Renata Grazziotin-Soares, Alexandre Azevedo Salles, Aline Zen Munari, Joseani Santos Pereira   +4 more
doaj   +1 more source

Direct measurements of helium and hydrogen ion concentration and total ion density to an altitude of 940 kilometers [PDF]

Measurement of ion concentration and total ion density in exosphere using mass spectrometer and electrostatic ...
Brace, L. H., Brinton, H. C., Smith, C. R., Taylor, H. A., Jr.   +3 more
core   +1 more source

Bases of inorganic and organic chemistry [PDF]

, 2016
Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are
Alami, D., Slavkova, M., Ved, M.
core