Results 71 to 80 of about 98,201 (305)

Are leaf hydrogen peroxide concentrations commonly overestimated? The potential influence of artefactual interference by tissue phenolics and ascorbate

, 2002
We have examined the authenticity of two methods for determination of H2O2 in leaf tissue. We show that the high concentrations of ascorbic acid present in leaf extracts interfere with both techniques. In the chromogenic peroxidase-coupled assay, H2O2 is
Foyer, C. H., Veljović-Jovanović, Sonja, Noctor, G, Noctor, G., Foyer, CH, Veljovic-Jovanovic, S.   +5 more
core   +1 more source

Studies on Ascorbic Acid. VI

Journal of the agricultural chemical society of Japan, 1938
5mgのAscorbin酸の37±1°に於ける自己酸化に對しVitamin A原液(100,000 I.U.)を0.0～0.2cc作用せしむる時0.0～0.0005ccまでは自己酸化抑制作用は發現せず, 0.001ccに於いて漸く發現し而して0.12ccまではVitamin Aの作用量と共に抑制作用は増大し0.12ccに於いて最大點に達し0.14cc以上に於いては抑制作用は消滅し酸化促進作用と化し而も此の作用は量比的である.但し本實驗に於てはVitamin AのAceton溶液を用ゐたから實驗値に對して幾分の誤差はまぬかれないであらう.
openaire   +8 more sources

Topology‐Driven X‐Shaped DNA as a cGAS Stimulator to Promote Dendritic Cell Activation and Antitumor Vaccine Efficacy

Advanced Science, EarlyView.
X‐shaped DNA promotes multivalent cGAS assembly and enhances cGAS‐STING signaling. When conjugated with antigenic peptides, the resulting X‐DNA‐based peptide vaccine promotes dendritic cell activation, antigen presentation, and antitumor T‐cell responses.
Jiabei Li, Xuan Wang, Dali Wei, Zhejie Chen, Ziyi Wang, Qing Yu, Yu Yang, Shengpeng Wang   +7 more
wiley   +1 more source

Ascorbate in the rat lens : dependence on dietary intake

, 2005
PURPOSE: To establish a method for sample preparation to measure ascorbate in whole lenses and to investigate whether lens ascorbate concentration is dependent on dietary ascorbate intake. METHODS: Four groups of 3 young Sprague-Dawley rats each were fed
Kakar, Manoj, Söderberg, Per G,, Löfgren, Stefan, Mody Jr, Vino C, Elfving, Åse, Kakar, M, Söderberg, PG, Löfgren, S,, Elfving, Å, Mody, VCJ   +9 more
core   +1 more source

Immunocytochemical determination of the subcellular distribution of ascorbate in plants [PDF]

, 2010
Ascorbate is an important antioxidant in plants and fulfills many functions related to plant defense, redox signaling and modulation of gene expression.
M. Stumpe, Stumpe, M., Bernd Zechmann, F. Mauch, Zechmann, Bernd, Mauch, Felix, Mauch, F., Stumpe, Michael   +7 more
core   +1 more source

A Closed‐Loop Direct Recycling Process for Prussian White From Scrap and End‐of‐Life Sodium‐Ion Batteries

Advanced Energy Materials, EarlyView.
A closed‐loop direct recycling route for Prussian White sodium‐ion battery cathodes is demonstrated. Ice‐stripped scrap and end‐of‐life electrodes are regenerated via low‐temperature aqueous resodiation (80°C), restoring sodium content, Fe2+ redox chemistry, and structural integrity.
Subha Samanta, Bowen Liu, Dongrui Xie, Joel Cornelio, Wilgner Lima da Silva, Manoj Mayaji Ovhal, Anton Zorin, Peter R. Slater, Emma Kendrick   +8 more
wiley   +1 more source

An upstream open reading frame is essential for feedback regulation of ascorbate biosynthesis in arabidopsis

, 2015
Ascorbate (vitamin C) is an essential antioxidant and enzyme cofactor in both plants and animals. Ascorbate concentration is tightly regulated in plants, partly to respond to stress.
Dare, Andrew P., Brewster, Di, Wright, Michele A., Rassam, Maysoon, Macknight, Richard C., Hellens, Roger P., Martínez-Sánchez, Marcela, Laing, William A., Storey, Roy, Wang, Daisy, Bulley, Sean M.   +10 more
core   +1 more source

In Vivo Nb4C3Tx MXene‐Assisted Photothermal Therapy of Melanoma in Mice

Advanced NanoBiomed Research, EarlyView.
Nb4C3Tx MXene converts pulsed 1064 nm irradiation into localized heat, producing concentration‐ and time‐dependent melanoma cell killing in vitro and suppressing tumor growth in mice. Histology reveals extensive tumor damage, macrophage‐associated material clearance, and no detectable persistent deposits in examined visceral organs, supporting Nb4C3Tx ...
Anton Roshchupkin, Benjamin Chacon, Gulnaz Gahramanova, Inna Chorna, Zhanna Klishchova, Anastasia Konieva, Ilya Yanko, Andrii Liutyi, Milena Yalyzhko, Ivan Baginskiy, Veronika Zahorodna, Júlio Sílvio de Sousa Bueno Filho, Erfan Rezvani Ghomi, Igor Panko, Tetiana Shapochka, Oksana Sulaieva, Oleksandr Solodovnyk, Lucia Gemma Delogu, Oleksiy Gogotsi, Laura Fusco, Sergiy Kyrylenko, Yury Gogotsi, Maksym Pogorielov   +22 more
wiley   +1 more source

Application of Natural Antioxidants from Strawberry Tree (Arbutus unedo L.) and Dog Rose (Rosa canina L.) to Frankfurters Subjected to Refrigerated Storage

Journal of Integrative Agriculture, 2013
The effect of the addition of natural antioxidants from strawberry tree (Arbutus unedo L.; AU) and dog rose (Rosa canina L.; RC), in frankfurters elaborated with or without the addition of antioxidant additives (sodium ascorbate and nitrite) was studied.
Mónica Armenteros, David Morcuende, Sonia Ventanas, Mario Estévez   +3 more
doaj   +1 more source

Aktivierung von Metallkomplexen durch Ultraschallwellen für eine gezielte Krebstherapie

Angewandte Chemie, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean, Nicolás Montesdeoca, Gilles Berger, Johannes Karges   +3 more
wiley   +1 more source