Results 21 to 30 of about 4,469 (170)

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

open access: yesSmart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou   +3 more
wiley   +1 more source

Moth‐Eaten Osteolysis of Multiple Foot Bones After a Conservatively Treated “Stable” Ankle Fracture: A Case Report and Literature Review

open access: yesClinical Case Reports, Volume 14, Issue 9, September 2026.
ABSTRACT Progressive multifocal “moth‐eaten” osteolysis involving foot and ankle bones after nonoperative treatment of a stable ankle fracture is rare and warrants evaluation for infectious, neoplastic, inflammatory, vascular, and mechanical causes.
Haotian Wu   +4 more
wiley   +1 more source

Tetraphenylphosphorus and tetraphenylantimony (2-carboxy)benzenesulfonates. Synthesis and structure

open access: yes, 2022
Ефремов Андрей Николаевич - аспирант, кафедра теоретической и прикладной химии, Южно-Уральский государственный университет. 454080, г. Челябинск, проспект Ленина, 76. E-mail: efremov_an94@mail.ru.
Efremov, A.N.   +3 more
core   +1 more source

A kinetic study on nucleophilic displacement reactions of aryl benzenesulfonates with potassium ethoxide: Role of K+ ion and reaction mechanism deduced from analyses of LFERs and activation parameters

open access: yes, 2018
Pseudofirst-order rate constants (kobsd) have been measured spectrophotometrically for the nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates 4a-f and Y-substituted phenyl benzenesulfonates 5a-k with EtOK in ...
엄익환
core   +1 more source

The Binding of Pentadiyl‐α,ω‐Bis(Dimethyldodecylammonium), a Cationic Gemini 12‐5‐12 Surfactant to Conjugated Carboxylates as Organic Counterions

open access: yesJournal of Surfactants and Detergents, Volume 29, Issue 4, Page 667-676, July 2026.
ABSTRACT The critical micelle concentration (CMC) values of the cationic gemini surfactant pentadiyl‐α,ω‐bis(dimethyldodecylammonium) bromide depend on the hydrophobicity of added conjugated organic carboxylate anions. Nine conjugated counterions, present as sodium salts of organic acids, were studied to expand the correlation to the counterion ...
Alexia Rios   +4 more
wiley   +1 more source

One‐Step, High‐Removal‐Rate and Low‐Damage Chemical Mechanical Polishing of InP Enabled by Hydrolysis Activated PF6− with In Situ Fluoride Passivation

open access: yesAdvanced Science, Volume 13, Issue 36, 29 June 2026.
In this work, we propose a CMP method for InP using NH4PF₆, which hydrolyzes under In3+ catalysis to form reactive species. These convert InP into low‐binding‐energy fluorides, facilitating removal and dissolution. The process delivers high material removal rates, smooth surfaces, and fluorine passivation that lowers defect density and improves ...
Shigong Fu   +5 more
wiley   +1 more source

Ion‐Pairing and Counterion Effects in Contemporary Photochemistry

open access: yesAngewandte Chemie Novit, Volume 2, Issue 2, June 2026.
Ion‐pairing and counterion effects have emerged as fundamental yet underexplored determinants of photochemical behavior. Far from inert, counterions, and Coulombic interactions modulate excited‐state dynamics, quenching efficiencies, emission, and catalytic pathways.
Matthias Schmitz, Christoph Kerzig
wiley   +1 more source

Advanced flexible brain computer interface materials: From development to application

open access: yesFlexMat, Volume 3, Issue 2, Page 185-209, June 2026.
This review explores how novel materials coatings are advancing brain‐computer interface (BCI) technology. It describes how these materials help overcome key challenges in signal accuracy, biocompatibility, and device durability. The paper highlights BCI applications in medicine and entertainment, and discusses future trends that could transform human ...
Renquan Guan   +5 more
wiley   +1 more source

Regioselectivity and the nature of the reaction mechanism in nucleophilic substitution reactions of 2,4-dinitrophenyl X-substituted benzenesulfonates with primary amines

open access: yes, 2017
Second-order rate constants have been measured for the reaction of 2,4-dinitrophenyl X-substituted benzenesulfonates with a series of primary amines. The nucleophilic substitution reaction proceeds through competitive S-O and C-O bond fission pathways ...
엄익환
core   +1 more source

The Arsenal of Aromatic Degrading Bacteria: How They Sense, Chase, Adapt and Destroy Environmental Pollutants

open access: yesMicrobial Biotechnology, Volume 19, Issue 5, May 2026.
In the environment, bacteria sense aromatic pollutants, migrate toward them, adapt to toxicity, and deploy specialized uptake and catabolic systems. Genomic plasticity, metabolic versatility and division of labor within populations together aid in the degradation of persistent aromatics, highlights that biodegradation is driven by various eco ...
Prashant S. Phale   +2 more
wiley   +1 more source

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