Results 51 to 60 of about 167,505 (302)

Reversing RAFT Polymerization: Near-Quantitative Monomer Generation Via a Catalyst-Free Depolymerization Approach

Journal of the American Chemical Society, 2021
The ability to reverse controlled radical polymerization and regenerate the monomer would be highly beneficial for both fundamental research and applications, yet this has remained very challenging to achieve. Herein, we report a near-quantitative (up to
H. Wang, N. Truong, Zhipeng Pei, M. Coote, Athina Anastasaki   +4 more
semanticscholar   +1 more source

Effect of terahertz irradiation on DNA damage repair in living cells

FEBS Open Bio, EarlyView.
We investigated the effect of terahertz (THz) wave irradiation on DNA double‐strand break (DSB) repair in living cells. We found that THz irradiation enhanced DSB repair at specific frequencies, whereas heat treatment inhibited it, indicating that this effect is nonthermal and frequency‐specific.
Yuya Ueno, Shota Yamazaki, Hiromichi Hoshina, Masahiko Harata   +3 more
wiley   +1 more source

In Vitro Infant Faecal Fermentation of Low Viscosity Barley β-Glucan and Its Acid Hydrolyzed Derivatives: Evaluation of Their Potential as Novel Prebiotics

Molecules, 2019
Barley contains high level of β-1,3-1,4-glucans (BBGs) which can be fermented by microbes and are a potential prebiotic. In the present study, native BBG with low viscosity and a MW of 319 kDa was depolymerized by acid hydrolysis to produce a series
Ka-Lung Lam, Kin-Chun Ko, Xiaojie Li, Xinxin Ke, Wai-Yin Cheng, Tianfeng Chen, Lijun You, Hoi-Shan Kwan, Peter Chi-Keung Cheung   +8 more
doaj   +1 more source

Larix Sibirica Arabinogalactan Hydrolysis over Zr-SBA-15; Depolymerization Insight

Molecules, 2022
Arabinogalactan depolymerization over solid Zr-containing SBA-15-based catalyst was studied via HPLC, GPC, and theoretical modeling. Arabinogalactans (AG) are hemicelluloses mainly present in larch wood species, which can be extracted on an industrial ...
Valentin V. Sychev, Yuriy N. Malyar, Andrey M. Skripnikov, Yuriy A. Trotsky, Yulia N. Zaitseva, Anna O. Eremina, Valentina S. Borovkova, Oxana P. Taran   +7 more
doaj   +1 more source

Recent Advances in Lignin Depolymerization Techniques: A Comparative Overview of Traditional and Greener Approaches

Biomass, 2022
Due to the increased and excessive consumption of fossil fuels, sustainable alternative energy sources are badly needed to replace fossil fuels. The conversion of biomass into energy and value-added chemicals is one of the most promising potential ...
Ranen Roy, Md Sajjadur Rahman, T. Amit, B. Jadhav   +3 more
semanticscholar   +1 more source

Malformin A1–mediated cytotoxicity in ovarian cancer cells occurs through pyroptosis and autophagy

FEBS Open Bio, EarlyView.
This study investigated the effects of the natural compound Malformin A1 (MA1) on the cytoskeleton that regulates cell proliferation and migration. Disruption of the cytoskeleton can impair these processes and promote cancer cell death. MA1 disrupted cytoskeletal organization, induced DNA damage, inflammation, activated autophagy, and pyroptosis ...
Nada Abdullah Hassan, Ikram A. Burney, Shika Hanif Malgundkar, Siva Ramamoorthy, Ressin Varghese, Mohamed A. Al‐Kindi, Hamad Al Riyami, Shadia Al Bahlani, Sergey Dobretsov, Syed Imran Hassan, Benjamin K. Tsang, Yahya Tamimi   +11 more
wiley   +1 more source

Rheological and Structural Characterization of Carrageenans during Depolymerization Conducted by a Marine Bacterium Shewanella sp. LE8

Gels
Carrageenans were widely utilized as thickening and gelling agents in the food and cosmetic industries, and their oligosaccharides have been proven to possess enhanced physicochemical and biological properties. In this study, Shewanella sp.
Xiong Li, Chuyi Li, Yizhou Liu, Gang Han, Congyu Lin, Xiaoli Chen, Jian Mao   +6 more
doaj   +1 more source

Effect of Two-Step Formosolv Fractionation on the Structural Properties and Antioxidant Activity of Lignin

Molecules, 2022
The formosolv fractionation process has been demonstrated to be an effective approach toward lignin recovery as an antioxidant from lignocellulosic biomass.
Xiaoxia Duan, Xueke Wang, Ao Huang, Guijiang Liu, Yun Liu   +4 more
doaj   +1 more source

Selective Lanthanide-Organic Catalyzed Depolymerization of Nylon-6 to ε-Caprolactam.

Angewandte Chemie, 2022
Nylon-6 is selectively depolymerized to the parent monomer ε-caprolactam by the readily accessible and commercially available lanthanide trisamido catalysts Ln(N(TMS)2)3 (Ln = lanthanide).
Lukas Wursthorn, Kristen Beckett, Jacob O. Rothbaum, Robin M. Cywar, Clarissa Lincoln, Yosi Kratish, T. Marks   +6 more
semanticscholar   +1 more source

Chemically Fueled Systems Chemistry Across Length Scales

Advanced Functional Materials, EarlyView.
Chemically fueled reaction cycles regulate processes through single and multiple catalytic sites on the molecular and assembly scale. This gives rise to unique kinetically controlled properties/functions like spatio‐temporal catalysis, oscillations, optical properties, and perform work.
Brigitte A. K. Kriebisch, Job Boekhoven
wiley   +1 more source