Results 81 to 90 of about 41,105,332 (294)

Synergistic Lewis Acid Photocatalysis Over Cluster‐Defect‐Engineered UiO‐66 for Efficient Liquid Biomass Upgrading

Angewandte Chemie, EarlyView.
A cluster‐defect engineering strategy is presented for the rational design of Zn‐incorporated UiO‐66 photocatalysts. Selective acid etching mediates hierarchical porosity and abundant Lewis acid sites, tailoring the electronic structure and enhancing light harvesting.
Hao Wang, Li‐Long Zhang, Haimei Xu, Baohua Jia, Liqun Ye, Tianyi Ma, Heng Zhang   +6 more
wiley   +2 more sources

Toward Nano‐Nutritional Medicine: A Remotely Activated Trans‐Vaccenic Acid‐Based Lipid Nanoparticles for Enhancing Immune Checkpoint Blockade Therapy

Advanced Science, EarlyView.
Eutectic mixtures from trans‐vaccenic acid (TVA) and stearic acid, which served as phase‐change material to encapsulate IR780, forming NIR‐responsive nanoparticles. IR780@TVA LNPs induce photothermal therapy and initiate adaptive anti‐tumor immunity.
Kang Liu, Yunlong Li, Hanmeng Liu, Peng Zhang, Mingjing Wang, Quanwei Sun, Wenshuo Yang, Zhengwei Song, Song Tan, Ye Yang, Peng She, Dengke Yin, Wei Shen   +12 more
wiley   +1 more source

Determinação de coeficiente de difusão de esteres e reações de transesterificação catalisadas por enzimas imobilizadas em organo-gel [PDF]

, 1994
Dissertação (Mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas.Neste trabalho, foi estudado o grau de impedimento imposto pelas barreiras difusionais de ésteres quando estes passam do meio reacional para o gel e
João, Jair Juarez
core  

A Simple and Efficient Esterification Method

, 2013
A convenient and practical esterification was realized and this reaction proceeded without a dehydrating reagent or water removal equipment. The synthesis of esters by reaction of carboxylic acids with various alcohols such as methyl, ethyl, isopropyl ...
陳明毅;李世元
core   +1 more source

Physicochemical properties, structural characteristics, and rheological behavior of mango peel pectin with different degrees of esterification

Journal of Future Foods
Raw mango peel pectin (RMP) was extracted from mango peel with a yield of 12.40%. The RMP was subsequently purified to obtain mango peel pectin (MP) and de-esterified to obtain de-esterified mango peel pectins (DEMPs) with degrees of esterification (33 ...
Ya Li, Xixiang Shuai, Ming Zhang, Xu Deng, Yuhan Zhang, Lingdong Li, Liqing Du   +6 more
doaj   +1 more source

Pectin Methylesterase Is Induced in Arabidopsis upon Infection and Is Necessary for a Successful Colonization by Necrotrophic Pathogens

Molecular Plant-Microbe Interactions, 2011
The ability of bacterial or fungal necrotrophs to produce enzymes capable of degrading pectin is often related to a successful initiation of the infective process.
Alessandro Raiola, Vincenzo Lionetti, Ibrahim Elmaghraby, Peter Immerzeel, Ewa J. Mellerowicz, Giovanni Salvi, Felice Cervone, Daniela Bellincampi   +7 more
doaj   +1 more source

Real‐Time Stress Visualization of Hydrogels Enabled by Supramolecularly Switched Stretch‐Induced Phase Separation

Advanced Science, EarlyView.
Supramolecular hydrogels enable real‐time visualization of mechanical stress through supramolecular switching mechanotransduction. Adamantane‐modified cellulose functions as a responsive domain that undergoes an on–off transition between hydrated and dehydrated states via reversible β‐cyclodextrin–adamantane complexation and decomplexation.
Sooyeon Noh, Akihide Sugawara, Naoaki Ishihara, Takashi Konishi, Yuki Ueda, Ryuhei Motokawa, Yoshinori Takashima, Hiroshi Uyama   +7 more
wiley   +1 more source

Direct δ‐Lactone Synthesis From Free Alcohols via Photoinduced δ‐C(sp3)–H Carbonylation in Flow

Angewandte Chemie, EarlyView.
Herein, we have developed a photo‐flow platform for the δ‐C(sp3)─H carbonylative lactonization of free alcohols with carbon monoxide. The transformation integrates alkoxyl radical generation, selective 1,5‐HAT, CO incorporation, and radical–polar crossover to enable direct access to δ‐lactones from simple alcohol precursors.
Prakash Chandra Tiwari, Runkang Liu, Timothy Noël   +2 more
wiley   +2 more sources

Physical and chemical modifications of tragacanth gum to improve electrospinnability for wound dressings

Carbohydrate Polymer Technologies and Applications
Electrospun nanofibers based on tragacanth gum (TG) represent a promising candidate for wound healing applications. However, the electrospinning of this natural gum has encountered several challenges due to the colloidal nature of its aqueous solution ...
Zahra Nazemi, Mehdi Jalili Ahmadabad, Marjan Bahraminasab, Samaneh Arab, Mahsa Janmohammadi, Mohammad Sadegh Nourbakhsh   +5 more
doaj   +1 more source

Lutein Esterification in Wheat Flour Increases the Carotenoid Retention and Is Induced by Storage Temperatures

Foods, 2017
The present study aimed to evaluate the effects of long-term storage on the carotenoid pigments present in whole-grain flours prepared from durum wheat and tritordeum.
Elena Mellado-Ortega, Dámaso Hornero-Méndez   +1 more
doaj   +1 more source