Results 51 to 60 of about 133,066 (344)

Purification, Characterization, and Antioxidant Activity of Polysaccharides Isolated from Cortex Periplocae

Molecules, 2017
In this study, crude Cortex Periplocae polysaccharides (CCPPs) were extracted with water. CCPPs were decolored with AB-8 resin and deproteinated using papain-Sevage methods.
Xiaoli Wang, Yifei Zhang, Zhikai Liu, Mingqin Zhao, Pengfei Liu   +4 more
doaj   +1 more source

Molar mass determination of lignins and characterization of their polymeric structures by multi-detector gel permeation chromatography

Journal of Analytical Science and Technology, 2021
Molar masses, Mark-Houwink-Sakurada (MHS) exponents, and refractive index increments (dn/dc) for three lignins were determined without derivatization by multi-detector gel permeation chromatography (GPC) in dimethylformamide (DMF) with 0.05 M lithium ...
Evamaria C. Gaugler, Wolfgang Radke, Andrew P. Vogt, Dawn A. Smith   +3 more
doaj   +1 more source

Magnetically Guided Mechanoactive Mineralization Scaffolds for Enhanced Bone Regeneration

Advanced Functional Materials, EarlyView.
A 3D‐printed ‘rebar‐concrete’ inspired scaffold (PGS‐P@MGel) synergizes spontaneous biomineralization with magneto‐mechanical stimulation through PDA@Fe3O4‐embedded hydrogel. This dual biointerface activates Piezo1/β‐catenin/YAP mechanotransduction axis, enhancing BMSCs osteogenesis and angiogenesis simultaneously.
Xuran Guo, Zaijin Tao, Zhenzhen Dai, Yinghua Gao, Chengzhen Chu, Cunyi Fan, Shen Liu, Xin Ma, Fangchun Jin, Zhengwei You, Jia Jiang   +10 more
wiley   +1 more source

Metal‐Organic Nanosheet Gels: Hierarchically Porous Materials for Selective Loading and Differential Release

Advanced Functional Materials, EarlyView.
A suspension of metal‐organic nanosheets was centrifuged to form self‐healing gels with a hierarchically porous structure. The prepared gels were used to selectively capture small molecules from solutions and differentially release them based on their size and charge. Abstract Metal‐organic nanosheets (MONs) are intrinsically porous 2D materials with a
Jiangtian Tan, Jonathan A. Foster
wiley   +1 more source

Water Influence in Poly(epichlorohydrin) Synthesis: An intermediate to Energetic Propellants

Journal of Aerospace Technology and Management, 2012
Poly(epichlorohydrin) was synthesized using anhydrous and hydrate stannic chloride, separately, as initiator. Reactions were conducted in the presence of a diol at 70o C.
Jairo Sciamareli, Silvana Navarro Cassu, Koshun Iha   +2 more
doaj   +1 more source

Highly Sensitive Electrochemical Biosensor Based on Hairy Particles with Controllable High Enzyme Loading and Activity

Advanced Functional Materials, EarlyView.
For the first time, a highly sensitive electrochemical biosensor based on SiO2‐based hairy particles with a grafted PDMAEMA polymer brush containing a quantifiable and large amount of immobilized Laccase is reported. The fabricated biosensor exhibits a sensitivity of 0.14 A·m⁻¹, a limit of detection (LOD) of 0.1 µm, and a detection range of 0.3–750 µm,
Pavel Milkin, Anila Antony, Hongtao Cai, Antonia Debevc, Ceyda Topal, Anne Linhardt, Alla Synytska, Leonid Ionov   +7 more
wiley   +1 more source

Functionalized Lignin Derivatives as Melt‐Spinnable Precursors for Carbon Fiber Production without Stabilization

Advanced Functional Materials, EarlyView.
By turning off hydrogen bonds by bulky ethyl cinnamate ester derivatization, softwood kraft lignin can flow under elevated temperatures, providing tough fiber in the melt for high take‐up speed. Subsequently, lignin ethyl cinnamate derivatives are readily stabilized with only dilute nitric acid leading to direct carbonized fiber with outstanding ...
Qi Hua, Muzaffer A. Karaaslan, Zhixin Huang, Lingyan Fang, Jie Wu, Huaiyu Zhang, Yuhang Ye, Yasmine Abdin, Scott Renneckar   +8 more
wiley   +1 more source

Molecular Engineering of Coacervate Network Binders for Stable Silicon‐Based Anodes in Lithium‐Ion Batteries

Advanced Functional Materials, EarlyView.
A coacervate charged polymer network is designed to regulate Coulomb interactions for stabilizing silicon anodes. By tuning electrostatic interactions, the binders enhance adhesion, stress dissipation, and interfacial stability. The binder with the strongest Coulomb interactions enables high areal capacities and stable full‐cell cycling with Ni‐rich ...
Dong‐Yeob Han, Im Kyung Han, Junsu Son, Jin Yong Kwon, Youn Soo Kim, Tae Kyung Lee, Soojin Park, Jaegeon Ryu   +7 more
wiley   +1 more source

Molecular Weight and Monosaccharide Composition of Astragalus Polysaccharides

Molecules, 2008
Two polysaccharides (APS-I and APS-II) were isolated from the water extract of Radix Astragali and purified through ethanol precipitation, deproteination and by ion-exchange and gel-filtration chromatography.
Pei-Pei Wang, Jia-Jia Wang, Quan Xia, Du-Juan Xu   +3 more
doaj  

Ring-opening copolymerization of (R,S)-β-butyrolactone and ε-caprolactone using sodium hydride as initiator

eXPRESS Polymer Letters, 2010
Copolymers of racemic β-butyrolactone ((R,S)-BL) and ε-caprolactone (CL), were synthesized by ring-opening polymerization initiated by sodium hydride (NaH).
doaj   +1 more source