Results 91 to 100 of about 1,542,489 (314)

Optimizing the Methodology for Antioxidant Activity Analysis of Manuka Honey

Foods
Manuka honey (MH) is increasingly recognized for its potent antioxidant properties, making it a promising functional food ingredient. However, discrepancies in assessment methods have impeded the standardization of its antioxidant capacity.
Xiaoling Zhou, Wei Zhao, Zihong Ye, Jintian Tang, Yafen Zhang   +4 more
doaj   +1 more source

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Development of Selective Determination Methods for Quinones with Fluorescence and Chemiluminescence Detection and Their Application to Environmental and Biological Samples [PDF]

, 2010
Quinones are compounds that have various characteristics such as a biological electron transporter, an industrial product and a harmful environmental pollutant. Therefore, an effective determination method for quinones is required in many fields.
岸川, 直哉
core  

Monolithic centrifugal microfluidic platform for bacteria capture and concentration, lysis, nucleic-acid amplification, and real-time detection [PDF]

, 2009
We report the design, fabrication, and characterization of a polymer centrifugal microfluidic system for the specific detection of bacterial pathogens.
Dimov, Ivan Krastev, Ricco, Antonio J., Ducrée, Jens, O'Grady, J., Barry, Thomas, I.K. Dimov, Barry, T., Ricco, A.J., Garcia-Cordero, Jose L., Garcia-Cordero, J.L., O'Grady, Justin, J. Ducree, J.L. Garcia-Cordero, J. O'Grady, Dimov, I.K., Ducree, J., T. Barry, A.J. Ricco, O\u27Grady, J.   +18 more
core   +1 more source

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

FEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Application of terahertz spectroscopy to the characterization of biological samples using birefringence silicon grating [PDF]

, 2012
We present a device and method for performing vector transmission spectroscopy on biological specimens at terahertz (THz) frequencies. The device consists of artificial dielectric birefringence obtained from silicon microfluidic grating structures. The
Saha, S.C., Khalid, A., Grant, J.P., Cumming, D.   +3 more
core   +1 more source

A Specific Peptide with Calcium-Binding Capacity from Defatted Schizochytrium sp. Protein Hydrolysates and the Molecular Properties

Molecules, 2017
Marine microorganisms have been proposed as a new kind of protein source. Efforts are needed in order to transform the protein-rich biological wastes left after lipid extraction into value-added bio-products.
Xixi Cai, Qian Yang, Jiaping Lin, Nanyan Fu, Shaoyun Wang   +4 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Highly sensitive integrated optical biosensors

, 2022
Paper 893307, 7 S.Optical sensor systems for biological and medical applications have been widely developed in order to satisfy the current requirements such as a miniaturization, cost reduction, label-free detection and fast response.
Weiland, M., Schröder, H., Zamora, V., Pergande, D., Lützow, P.   +4 more
core   +1 more source

Biophysical approaches for studying viral entry

FEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source