Results 41 to 50 of about 167 (134)

A Stretchable, Mechanically‐Interlocked Polyrotaxane Hydrogel for Wearable Motion and Electrophysiological Monitoring

Advanced Science, Volume 13, Issue 37, 3 July 2026.
A mechanically interlocked polyrotaxane hydrogel integrates sliding macrocycles within a covalent network, yielding skin‑like softness, high stretchability, robust adhesion, and stable ionic conductivity. This multifunctional interface enables simultaneous high‑fidelity monitoring of human motion and epidermal electrophysiological signals (ECG/EMG ...
Hao‐Zheng Huang, Yu‐Tao Zheng, Feng Chen, Jing‐Yi Li, Wen‐Hui Zhang, Liang Ding, Zhegang Huang, Wei Jiang, Li‐Ping Huang, Xing‐Can Shen   +9 more
wiley   +1 more source

SnCl₄ Promoted Efficient Cleavage of Acetal/Ketal Groups with the Assistance of Water in CH₂Cl₂

Molecules, 2022
Acetalization and deacetalation are a pair of routine manipulations to protect and deprotect the 4- and 6-hydroxyl groups of glycosides in the synthesis of glycosyl building blocks.
Tao Luo, Tian-Tian Xu, Yang-Fan Guo, Hai Dong   +3 more
doaj   +1 more source

Proton‐Exchanged Montmorillonite With Interlayer Accessibility as a Solid Acid Catalyst for the Upcycling of Polyoxymethylene

Chemistry – A European Journal, Volume 32, Issue 23, 16 June 2026.
The first microwave‐assistance‐free heterogeneous catalytic upcycling of polyoxymethylene (POM) into valuable cyclic acetals is achieved with a reusable proton‐exchanged montmorillonite (H‐Mont) catalyst. Combining interlayer accessibility with strong acidity, H‐Mont enables efficient, regenerable, and versatile transformations with potentially biomass‐
José F. Noboa, Sho Yamaguchi, Takato Mitsudome, Tomoo Mizugaki   +3 more
wiley   +1 more source

Glycerol to Solketal for Fuel Additive: Recent Progress in Heterogeneous Catalysts

Energies, 2019
Biodiesel has been successfully commercialized in numerous countries. Glycerol, as a byproduct in biodiesel production plant, has been explored recently for fuel additive production.
Is Fatimah, Imam Sahroni, Ganjar Fadillah, Muhammad Miqdam Musawwa, Teuku Meurah Indra Mahlia, Oki Muraza   +5 more
doaj   +1 more source

Electrocatalytic Methanol Oxidation in a Gas‐Phase Electrolyzer: Formaldehyde versus Dimethoxymethane Formation

ChemElectroChem, Volume 13, Issue 11, 3 June 2026.
A gas‐phase electrolyzer with a Pt‐impregnated Nafion membrane anode was used for selectively oxidizing methanol to formaldehyde (FA) with low water content. However, maintaining the cell temperature at 100 °C for extended periods led to membrane dehydration and low water content in the effluent, causing most FA to react with methanol to form ...
Sebastian Lechler, Zijian Huang, Michel Deitermann, Bastian Mei, Wolfgang Schuhmann, Martin Muhler   +5 more
wiley   +1 more source

From Recycled Polyethylene Terephthalate Waste to High-Value Chemicals and Materials: A Zero-Waste Technology Approach

Energies
The presence of PET (polyethylene terephthalate) in the environment is a global problem due to soil and water microplastic contamination. There is a constant demand for new technologies that expand the possibilities of PET disposal or recycling while ...
Maciej Kapkowski, Sonia Kotowicz, Karina Kocot, Mateusz Korzec, Jerzy Kubacki, Maciej Zubko, Krzysztof Aniołek, Urszula Siudyga, Tomasz Siudyga, Jaroslaw Polanski   +9 more
doaj   +1 more source

Heteropolyacids@Silica Heterogeneous Catalysts to Produce Solketal from Glycerol Acetalization

Nanomaterials
The composites of heteropolyacids (H3PW12, H3PMo12) incorporated into amine-functionalized silica materials were used for the first time as heterogeneous catalysts in the valorization of glycerol (a major waste from the biodiesel industry) through ...
Catarina N. Dias, Isabel C. M. S. Santos-Vieira, Carlos R. Gomes, Fátima Mirante, Salete S. Balula   +4 more
doaj   +1 more source

Application of polyaluminium chloride (PAC) as a Heterogeneous catalyst for glycerol formal synthesis [PDF]

BIO Web of Conferences
Acetalization of glycerol with formaldehyde is one approach to produce glycerol formal compounds that have the potential to be used as fuel additives and environmentally friendly solvents.
Julianto Tatang Shabur, Mauludiyah Riskiyatul, Putri Cutwan Iynayah   +2 more
doaj   +1 more source

Catalytic asymmetric acetalization of carboxylic acids for access to chiral phthalidyl ester prodrugs

Nature Communications, 2019
Phthalidyl esters, commonly used prodrug moieties, are mostly prepared as a racemate. Here, the authors report an N-heterocylcic carbene-catalysed enantioselective acetalization of carboxylic acids and dialdehydes to give phthalidyl esters in high yields
Yingguo Liu, Qiao Chen, Chengli Mou, Lutai Pan, Xiaoyong Duan, Xingkuan Chen, Hongzhong Chen, Yanli Zhao, Yunpeng Lu, Zhichao Jin, Yonggui Robin Chi   +10 more
doaj   +1 more source

Mo‐Catalyzed Synthesis of N‐Polyheterocycles From Functionalized Nitroarenes and Aldehydes

Asian Journal of Organic Chemistry, Volume 15, Issue 5, May 2026.
Mo(VI)‐catalyzed one‐pot conversion of readily available functionalized nitroarenes and aldehydes yielded fused N‐polyheterocycles by sequential nitro reduction, imine formation, and cyclization. Using pinacol as a benign reductant, this sustainable tandem strategy suppresses side reactions and grants rapid access to diverse pharmacologically relevant ...
Raúl Martínez‐González, Rubén Rubio‐Presa, María R. Pedrosa, Samuel Suárez‐Pantiga, Roberto Sanz   +4 more
wiley   +1 more source