Results 101 to 110 of about 106,557 (221)

Molecular‐Scale Geometric Control of Organosiloxane Cage Frameworks Via Rigid Organic Bridges

open access: yesSmall Methods, EarlyView.
Rigid phenylene bridges with predefined Si–Ph–Si angles enable molecular‐level control of cage‐type organosiloxane frameworks. Hydrolysis and condensation of meta‐ and para‐bis(triethoxysilyl)benzene in the presence of tetramethylammonium hydroxide yield a mixture of cage trimers and tetramers, and hexamers, respectively, providing a new insight into ...
Taiki Hayashi   +5 more
wiley   +1 more source

Tetramethylammonium hydroxide poisoning TMAH poisoning

open access: yes, 2010
Introduction. Tetramethylammonium hydroxide (TMAH) is widely used as a developer or etchant in semiconductor and photoelectric industries. In addition to alkalinity-related chemical burn, dermal exposure to TMAH may also result in respiratory failure and/

core  

Manufacture and Characterization of High Q-Factor Inductors Based on CMOS-MEMS Techniques

open access: yesSensors, 2011
A high Q-factor (quality-factor) spiral inductor fabricated by the CMOS (complementary metal oxide semiconductor) process and a post-process was investigated. The spiral inductor is manufactured on a silicon substrate.
Ming-Zhi Yang   +2 more
doaj   +1 more source

Recent progress on the development of hydrogel‐based microneedles for transdermal drug delivery

open access: yesVIEW, EarlyView.
This study provides a comprehensive and up‐to‐date analysis of recent progress in HMN technology, covering fundamental transdermal delivery mechanisms and design principles, biomaterials used in HMN fabrication, drug loading and release strategies, and emerging therapeutic applications.
Mohammad Muhtasim Ittisaf   +5 more
wiley   +1 more source

Comparison of Crystal Structures of the Tetramethylammonium and Sodium Salts of 3-Nitrophenolate [PDF]

open access: yes, 2017
The addition of either sodium hydroxide or tetramethylammonium hydroxide to 3-nitrophenol led to orange-red crystals of sodium 3-nitrophenolate dihydrate or a complex of 3-nitrophenol and tetramethylammonium 3-nitrophenolate.
Martin, Kenneth L   +2 more
core  

COMPARISON OF IODINE DETERMINATION IN SPINACH USING 2% CH3COOH AND TMAH

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2011
Tetramethylammonium hydroxide (TMAH) is the compound most commonly applied for iodine determination in environmental samples but, at the same time, is very harmful for human health when used as an analytical reagent.
Sylwester Smoleń   +3 more
doaj  

Translocated Clam Retention and Effects on Ecosystem Functions Across a Gradient of Environmental Stress

open access: yesNew Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 4, December 2026.
Estuarine ecosystems are experiencing increasing land‐derived stress, bringing sediments, excess nutrients and contaminants. Once degraded, disturbed soft sediment ecosystems can take years to recover because long‐lived, functionally important species that aid recovery are lost.
Natalie Prinz   +6 more
wiley   +1 more source

Determinação de elementos traço em amostras biológicas tratadas com ácido fórmico por espectrometria de massa com plasma indutivamente acoplado [PDF]

open access: yes, 2012
Tese (Doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaEste trabalho propõe a solubilização com ácido fórmico como um procedimento alternativo à digestão ácida no preparo ...
Tormen, Luciano
core  

MXene Electrocatalysts for Selective Nitrogen Reduction Reaction‐to‐Ammonia Production: Surface Chemistry, Electronic Framework, and Design Principles

open access: yesCarbon Neutralization, Volume 5, Issue 6, November 2026.
Advanced MXene electrocatalysts with engineered active sites and tailored electronic structures facilitate selective electrochemical nitrogen reduction to ammonia under ambient conditions. Optimized conductivity, surface chemistry, and multimetallic compositions improve catalytic efficiency while minimizing hydrogen evolution, offering a promising ...
Syed Asim Ali   +3 more
wiley   +1 more source

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