Results 1 to 10 of about 26,533 (235)

Chalcone suppresses tumor growth through NOX4-IRE1α sulfonation-RIDD-miR-23b axis

Redox Biology, 2021
Chalcone is a polyphenolic compound found abundantly in natural plant components. They have been acclaimed as potential antitumor compounds in multiple tumor cells. However, not much attention has been paid to elucidate its antitumor mechanism of action.
Hyun-Kyoung Kim, Hwa-Young Lee, Thoufiqul Alam Riaz, Kashi Raj Bhattarai, Manoj Chaudhary, Jin Hee Ahn, Jieun Jeong, Hyung-Ryung Kim, Han-Jung Chae   +8 more
doaj   +2 more sources

Sulfonation of Hydroxymethylated Lignin and Its Application

Journal of Bioresources and Bioproducts, 2019
To valorize kraft lignin, hydroxymethylation and sulfonation were applied on this under-utilized, but vastly available, material. The hydroxymethylation pretreatment was conducted as means to improve the reactivity of lignin.
Weijue Gao, John P.W. Inwood, Pedram Fatehi   +2 more
doaj   +2 more sources

Enhancing PEEK surface bioactivity: Investigating the effects of combining sulfonation with sub-millimeter laser machining

Materials Today Bio, 2023
Due to its superior mechanical properties and chemical stability, Polyetheretherketone (PEEK) has emerged as an alternative to conventional metal implants. However, the bio-inertness of PEEK's surface has limited its applications. Ambient sulfonation has
Slila Chayanun, Theerapat Chanamuangkon, Budsaraporn Boonsuth, B. Lohwongwatana, A. Boccaccini   +4 more
semanticscholar   +1 more source

The correlation of sulfonation reaction kinetics with the degree of sulfonation (DS) and its effects on microstructure and morphology of electrospun fibers for the membrane of fuel cells

RSC Advances, 2023
Sulfonation is among the frequently used surface modification methods to endow new surface properties on polymer fibers. Direct sulfonation is the simplest chemical modification via incorporation of sulfonate functional groups onto fibers' surfaces at ...
R. P. Parreño
semanticscholar   +1 more source

Sulfonated Cellulose Membranes: Physicochemical Properties and Ionic Transport versus Degree of Sulfonation

Advanced Sustainable Systems, 2022
The next generation of green ion selective membranes is foreseen to be based on cellulosic nanomaterials with controllable properties. The introduction of ionic groups into the cellulose structure via chemical modification is one strategy to obtain ...
S. Lander, J. Erlandsson, M. Vagin, V. Gueskine, Leena Korhonen, M. Berggren, L. Wågberg, X. Crispin   +7 more
semanticscholar   +1 more source

Synthesis and characterization of sulfonated poly(ether imide) with higher thermal stability and effect on CO2, N2, and O2 permeabilities [PDF]

Materials Research, 2014
An experimental design in different reaction conditions was applied to modify poly(ether imide), PEI, by sulfonation using acetyl sulfate. Higher temperatures and reaction times led to higher ion exchange capacity.
Michelle S. V. Chã, Paula P. Bittencourt, Maria E. Sena, Marcio L. L. Paredes, Gabriela F. Moreira, Rodrigo A. Reis   +5 more
doaj   +1 more source

Synthesis and Characterization of Polystyrene Sulfonic Acid from Expanded Polystyrene Foam as a Catalyst in the Synthesis of Triacetin

Indonesian Journal of Chemistry, 2021
In Indonesia, the composition of waste has gradually changed over time. To reduce expanded polystyrene (EPS) foam waste, we converted it into a heterogeneous acid catalyst, namely Polystyrene Sulfonic Acid (PSSA).
Renita Manurung, Rosdanelli Hasibuan, Fatimah Batubara, Handy Inarto, Alwi Gery Agustan Siregar, Auryn Saputra   +5 more
doaj   +1 more source

Determination of Sulfonation Conditions of HAB as a By-product of Linear Alkylbenzene Production [PDF]

Journal of Petroleum Science and Technology, 2015
Heavy alkylated benzene (HAB), which is a by-product in linear alkylbenzene (LAB) production by UOP process, is separated by distillation from LAB and consists of a range of components such as polyalkylbenzenes, diphenylalkanes, alkyl tetralins, and ...
Amir Nasser Ahmadi, Ali Mehdizadeh, Amir Hossein Jalili   +2 more
doaj   +1 more source

Characterization of Formononetin Sulfonation in SULT1A3 Overexpressing HKE293 Cells: Involvement of Multidrug Resistance-Associated Protein 4 in Excretion of Sulfate

Frontiers in Pharmacology, 2021
Formononetin is one of the main active compounds of traditional Chinese herbal medicine Astragalus membranaceus. However, disposition of formononetin via sulfonation pathway remains undefined.
Fanye Liu, Shuhua Pei, Wenqi Li, Xiao Wang, Chao Liang, Ruohan Yang, Zhansheng Zhang, Xin Yao, Dong Fang, Songqiang Xie, Hua Sun   +10 more
doaj   +1 more source

Study on polyethylene-based carbon fibers obtained by sulfonation under hydrostatic pressure

Scientific Reports, 2021
Polyethylene based carbon fibers were studied using high density polyethylene(HDPE) fibers and linear low density polyethylene(LLDPE) fibers with various melt flow index.
Jong Hyun Eun, Joon Seok Lee
doaj   +1 more source