Results 101 to 110 of about 58,142 (306)

Living Hydrogels: Harnessing Microorganism–Material Synergy for Next‐Generation Therapeutics

Advanced Science, EarlyView.
 . ABSTRACT Microorganism‐based therapies, particularly those utilizing probiotics, have emerged as a powerful biomedical strategy owing to their inherent living functionalities. These living systems can dynamically interact with host environments and self‐regulate their activity, offering superior adaptability, prolonged functionality, and ...
Shuifang Mao, Bingyao Bai, Xingqian Ye, Yiliang Lin   +3 more
wiley   +1 more source

Corrosion Inhibition Properties of Corrosion Inhibitors to under-Deposit Corrosion of X65 Steel in CO₂ Corrosion Conditions

Molecules
Under-deposit corrosion is widely present in the pipelines of oil and gas production, causing significant corrosion damage. In this paper, a novel electrochemical cathodic-polarization method was carried out to accelerate the formation of CaCO3 scale on ...
Hai Lin, Xiaorong Chen, Zhongming Luo, Jun Xu, Ping Lu, Tianyi Xie, Jiayi Tang, Hu Wang   +7 more
doaj   +1 more source

Antibacterial Activity of Quaternary Ammonium Salt from Diethylaminoethyl Methacrylate

E-Journal of Chemistry, 2010
A quaternary ammonium salt was synthesized from diethylaminoethyl methacrylate (DEAEMA) by quaternization with hexadecyl bromide. The resultant compound (Am-h) was characterized by FTIR and NMR spectroscopy.
Makhloufia Mohammed, BenaÏssa Tahar, Derdour AÏcha, Henni Djamel Eddine   +3 more
doaj   +1 more source

Brazilian organoclays as nanostructured sorbents of petroleum-derived hydrocarbons

Materials Research, 2005
Organophilic clays were prepared using a bentonite from the town of Boa Vista, state of Paraíba, Brazil, and a quaternary ammonium salt (Genamin CTAC-50). The materials obtained were characterized by X-ray diffraction and infrared spectroscopy.
Kleberson Ricardo de Oliveira Pereira, Rosângela Abdala Hanna, Marilda Mendonça Guazzelli Ramos Vianna, Carolina Afonso Pinto, Meiry Gláucia Freire Rodrigues, Francisco Rolando Valenzuela-Diaz   +5 more
doaj   +1 more source

Polyethylene and Polypropylene Nanocomposites Based on Polymerically - Modified Clay Containing Alkylstyrene Units [PDF]

, 2006
Sodium montmorillonite was modified with a new polymeric surfactant. The high molecular weight of the surfactant appears to have led to incomplete cation exchange of the clays, but did promote nanocomposite formation with polyethylene and polypropylene ...
Wilkie, Charles A., Zhang, Jinguo
core   +2 more sources

Construction of a MOF‐Based Snap‐Top Delivery Nanosystem for Powerful Dual‐Responsive Synergistic Colitis Treatment

Advanced Science, EarlyView.
A snap‐top delivery nanosystem based on an azobenzene metal–organic framework achieves targeted release of 6‐mercaptopurine via acid‐stable frameworks and hypoxia/pH dual‐responsive β‐cyclodextrin gates. This multifunctional platform integrates three synergistic mechanisms: precision drug delivery to inflammatory sites, intrinsic antioxidant properties
Xin Li, Miao Xu, Heran Li, Huan Jiang, Xin Wang, Lianjun Ma, Ying‐Wei Yang   +6 more
wiley   +1 more source

Исследование устойчивости суспензии карбонатного шлама в производстве гидроксида натрия [PDF]

, 2012
В статье рассматривается влияние широкого ассортимента солей четвертичных аммониевых оснований на устойчивость суспензии карбонатного шлама производства гидроксида натрия известковым способом.
Леденёва, О. П., Посторонко, А. И.   +1 more
core  

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source

Quaternary ammonium salt derivatives of allylphenols with peripheral analgesic effect

Memorias do Instituto Oswaldo Cruz, 1991
Ammonium salt derivatives of natural allylphenols were synthesized with the purpose of obtaining potential peripheral analgesics. These drugs, by virtue of their physicochemical properties, would not be able to cross the blood brain barrier.
A. B de Oliveira, T. H. A. Silva, S. H. Ferreira, B. B. Lorenzetti   +3 more
doaj   +1 more source

Programmable RNA N6,2´‐O‐Dimethyladenosine Editing

Advanced Science, EarlyView.
ABSTRACT N6,2’‐O‐dimethyladenosine (m6Am) is a prevalent RNA modification located at the first transcribed nucleotide adjacent to the 5′ cap of mRNAs, where it has been implicated in gene regulation. However, the lack of methods for precise, transcript‐specific manipulation of m6Am has limited its functional dissection.
Yang Li, Xiangmin Tan, Yaran Liu, Yongquan He, Bo Yuan, Ping Wang, Guangzhi Ma, Mengzhe Guo, Jian Zhou, Qiang Sun   +9 more
wiley   +1 more source