Results 61 to 70 of about 310,372 (257)

Determination of glucose oxidase activity based on the H2O2/KI/RhB fluorescence quenching system

Results in Chemistry
Glucose oxidase (GOx) is a specific enzyme that can catalyze the oxidation of glucose to produce gluconic acid and hydrogen peroxide (H2O2), which is closely related to people's daily lives.
Aiju Zhang, Xiaolin Zhang, Ying Bai, Na Dong, Fangzhen He   +4 more
doaj   +1 more source

A Novel Electrochemical Biosensor Based On Fe3O4 Nanoparticles-Polyvinyl Alcohol Composite for Sensitive Detection of Glucose [PDF]

, 2017
In this research, a new electrochemical biosensor was constructed for the glucose detection. Iron oxide nanoparticles (Fe3O4) were synthesized through co-precipitation method.
Abdolrahim, Mojgan, Rabiee, Mohammad, Sanaeifar, Niuosha, Tahriri, Mohammadreza, Tayebi, Lobat, Vashaee, Daryoosh   +5 more
core   +1 more source

Location of catalase in crystalline peroxisomes of methanol-grown Hansenula polymorpha [PDF]

, 1992
We have studied the intraperoxisomal location of catalase in peroxisomes of methanol-grown Hansenula polymorpha by (immuno)cytochemical means. In completely crystalline peroxisomes, in which the crystalline matrix is composed of octameric alcohol oxidase
Harder, Wim,, Keizer, Ineke,, Roggenkamp, Rainer,, Veenhuis, Marten,   +3 more
core   +1 more source

An Edible H2O2 Biosensor for Gastrointestinal Metabolites and Peroxidase Enzyme Quantification

Advanced Healthcare Materials, EarlyView.
We present an edible biosensor for gastric fluid analysis that integrates a caffeic acid–horseradish peroxidase redox system into an edible electrolyte‐gated transistor. The device enables rapid, low‐volume detection of H2O2 and, with minimal modification, metabolites and enzyme activity in simulated gastrointestinal conditions.
Valerio Francesco Annese, Elena Feltri, Pietro Rossi, Valerio Galli, Cristiano Bortolotti, João Paulo Vita Damasceno, Ivan K. Ilic, Dario Natali, Alessandro Luzio, Adrica Kyndiah, Mario Caironi   +10 more
wiley   +1 more source

The Oxidase Mimicking Activity of MnOx NPs/Co3O4 NPs Hybrid Nanozyme for Glucose Oxidation

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi
Herein, the hybrid nanozyme MnOx NPs/Co3O4 NPs on indium tin oxide coated glass substrate (ITO) was manufactured by imparting the porous morphology with its distinct merits: its surface valence states, oxygen vacancies, large surface area, and abundant ...
Bekir Çakıroğlu
doaj   +1 more source

Extracellular Vesicles Modulation by an Adiponectin Receptor Agonist Provides Cardioprotection for Myocardial Ischemic Injury

Advanced Healthcare Materials, EarlyView.
This study demonstrates that ALY688, a drug mimicking the heart‐protective hormone adiponectin, reduces myocardial ischemia injury. ALY688 increases the production of extracellular vesicles, which carry protective cargo including adiponectin itself.
Jialing Tang, Wing Yan Chung, Serena M. Pulente, Yubin Lei, Khang Nguyen, Eddie Tam, Nadya M. Morrow, Ilka Lorenzen‐Schmidt, Fengxia Xiao, Augusto Zani, Dylan Burger, Hye Kyoung Sung, Erin E. Mulvihill, Gary Sweeney   +13 more
wiley   +1 more source

Effect of ischemia on the canine large bowel: A comparison with the small intestine [PDF]

, 1996
Mucosal injury caused by ischemia and reperfusion has been well documented with the small intestine, but little is known about the colon. In the present study, the effect of warm and cold ischemia on the canine colon was studied and compared to that on ...
Ikoma, A, Nakamura, K, Starzl, TE, Takeyoshi, I, Todo, S, Zhang, S, Zhu, Y   +6 more
core   +1 more source

Eutectozymes as Soft Hybrid Materials for Advanced Biocatalysis

Advanced Materials, EarlyView.
Eutectozymes are sustainable hybrid materials that embed a GOx–HRP cascade within hydrophobic eutectogels featuring a dual supramolecular–covalent network. This architecture preserves native enzyme structure and stability, enables efficient heterogeneous biocatalysis in aqueous media, and positions eutectogels as robust platforms for next‐generation ...
Manuel Eduardo Martinez Cartagena, Lucia Suarez, Aitor Ontoria, Francisca J. Benitez, Elixabete Rezabal, María Soledad Orellano, Marcelo Calderón, Cristián Huck‐Iriart, Agustin S. Picco, Matias L. Picchio, Ana Beloqui   +10 more
wiley   +1 more source

Glucose Sensing by Time-Resolved Fluorescence of Sol-Gel Immobilized Glucose Oxidase

Sensors, 2011
A monolithic silica gel matrix with entrapped glucose oxidase (GOD) was constructed as a bioactive element in an optical biosensor for glucose determination.
Maria Lepore, Raffaele Velotta, Carlo Altucci, Sergio De Nicola, Bartolomeo Della Ventura, Rosario Esposito, Damiano Gustavo Mita   +6 more
doaj   +1 more source

Extension of Yeast Chronological Lifespan by Methylamine [PDF]

, 2012
Background: Chronological aging of yeast cells is commonly used as a model for aging of human post-mitotic cells. The yeast Saccharomyces cerevisiae grown on glucose in the presence of ammonium sulphate is mainly used in yeast aging research.
A Mesquita, AE Roux, AL Alvers, AR Hipkiss, BK Kennedy, BK Kennedy, CR Burtner, D Longo Valter, E Morselli, EJ Masoro, GJ Sulter, HR Waterham, Ida J. van der Klei, J Roosen, J Santos, JA Komduur, JDL Smith, JP van Dijken, JP Van Dijken, K Zwart, L Pollegioni, LP Dijken, M Kaeberlein, M MacLean, Marten Veenhuis, P Fabrizio, P Ludovico, P Wardman, R Saraya, Sanjeev Kumar, Sophie D. Lefevre, T Eisenberg, Valdur Saks, Y Pan   +33 more
core   +3 more sources