Results 71 to 80 of about 131,827 (264)

Bubble Formation Control: Fabrication of Centimeter‐Sized Tissue‐Like Constructs by Catalase‐Coated Oxygen‐Releasing Hydrogel

Advanced Materials, EarlyView.
Oxygen‐releasing hydrogels are widely used to support cell survival in 3D cultures and to promote wound healing. However, incorporating catalase to convert H2O2 into O2 often generates additional oxygen bubbles, leading to material instability which rarely addressed.
Sukulya Bunuasunthon, Isabel F. Amaral, Ana P. Pêgo, Michiya Matsusaki   +3 more
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

Review: Lipid and myoglobin oxidations in muscle foods [PDF]

Songklanakarin Journal of Science and Technology (SJST), 2008
Lipid oxidation and myoglobin oxidation in muscle foods occur in a concurrent manner and each process appears to enhance the other. During oxidation of oxymyoglobin, both superoxide anion and hydrogen peroxide are produced and further react with iron to ...
Manat Chaijan
doaj  

Feasibility of the Purification of Pharmaceuticals from Aqueous Solutions using Carbon Nanotubes in the Presence of Oxidizers [PDF]

Iranian Journal of Chemical Engineering
In this research, the methods of oxidation, oxidation along with carbon nanotubes and surface absorption of carbon nanotubes were investigated to remove the drug substance of cefixime from aqueous solutions.
Faezeh Mohammadi, Negin Moradpour, Neda Azimi, Ebrahim Ebrahimi   +3 more
doaj   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

Advanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He, Zhiqi Wang, Jiaqi Guan, Younan Xia   +3 more
wiley   +1 more source

Oxidative damage of U937 human leukemic cells caused by hydroxyl radical results in singlet oxygen formation.

PLoS ONE, 2015
The exposure of human cells to oxidative stress leads to the oxidation of biomolecules such as lipids, proteins and nuclei acids. In this study, the oxidation of lipids, proteins and DNA was studied after the addition of hydrogen peroxide and Fenton ...
Marek Rác, Michal Křupka, Svatopluk Binder, Michaela Sedlářová, Zuzana Matušková, Milan Raška, Pavel Pospíšil   +6 more
doaj   +1 more source

Decoupling Activation and Preservation: Architectural Design Principles of Organic Frameworks for Selective Photocatalytic Methane Oxidation

Advanced Materials, EarlyView.
Selective methane (CH4) photooxidation emerges from architectural decoupling of activation and preservation. Programmable organic semiconductor frameworks spatially organize oxidative flux and intermediate residence, separating reaction zones from product domains to synchronize activation strength with stabilization and establish a selective oxidation ...
Minxian Zhang, Jie He, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Quantifying hydrogen peroxide in iron-containing solutions using leuco crystal violet

Geochemical Transactions, 2005
Hydrogen peroxide is present in many natural waters and wastewaters. In the presence of Fe(II), this species decomposes to form hydroxyl radicals, that are extremely reactive.
Schoonen Martin A, Pak Aimee, Strongin Daniel, Cohn Corey A   +3 more
doaj   +1 more source

Oxidation of Polyvinylalcohol by Hydrogen Peroxide

Kobunshi Kagaku, 1959
ポリビニルアルコール (PVA) の過酸化水素 (H2O2) による酸化機構を調ベ, 以下のことを知った。無触媒では60℃ で明瞭に切断が起るが30℃ ではほとんど起らない。しかしアルカリ触媒の共存下では30℃ でも顕著に切断が起る. また触媒の有無にかかわらず1個の主鎖の結合の切断には10～20個のH2O2分子が必要である。酸化分解したPVAの分子はカルボキシル基とカルボニル基を大体1個ずつ持っており, 分解反応以外の反応はほとんど起っていないと思われる。酸化分解に際しては1, 2-グリコール結合はかなり選択的に切断される。
Sakurada, Ichiro, Matuzawa, Syuji
openaire   +2 more sources

Recent Advances in Ferrite‐Based Materials for Biomedical Applications: A Comprehensive Review

Advanced Materials, EarlyView.
Ferrite nanoplatforms are presented as tunable biomedical materials in which synthesis control, cation engineering, defect/morphology regulation, and surface functionalization govern structure–property–bioactivity relationships. These design strategies enable multifunctional applications including MRI contrast, magnetic hyperthermia, targeted drug ...
Pramod D. Mhase, Varsha C. Pujari, Akash V. Fulari, Sunil M. Patange, Sean Li, Danyang Wang, Sagar E. Shirsath   +6 more
wiley   +1 more source