Results 41 to 50 of about 80,692 (280)

Ionophore-Based Voltammetric Ion Activity Sensing with Thin Layer Membranes.

Analytical Chemistry, 2016
As shown in recent work, thin layer ion-selective multi-ionophore membranes can be interrogated by cyclic voltammetry to detect the ion activity of multiple species simultaneously and selectively.
M. Cuartero, G. Crespo, E. Bakker
semanticscholar   +1 more source

Withdrawal of sodium monensin when associated with virginiamycin during adaptation and finishing periods on feedlot performance, feeding behavior, carcass, rumen, and cecum morphometrics characteristics of Nellore cattle

Frontiers in Veterinary Science, 2023
Feed additives such as monensin (MON) and virginiamycin (VM) are widely used in feedlots diets to maximize rumen fermentation. However, the knowledge about the effects of MON and VM combinations in specifics feedlot periods and the benefits of this ...
André L. N. Rigueiro, Murilo C. S. Pereira, Antonio M. Silvestre, Ana Carolina J. Pinto, Luana D. Felizari, Evandro F. F. Dias, Breno L. Demartini, Daniela D. Estevam, João V. T. Dellaqua, Katia L. R. Souza, Leandro A. F. Silva, Ana B. P. C. Nunes, Johnny M. Souza, Danilo D. Millen   +13 more
doaj   +1 more source

Matrix-free calcium in isolated chromaffin vesicles [PDF]

, 1985
Isolated secretory vesicles from bovine adrenal medulla contain 80 nmol of Ca2+ and 25 nmol of Mg2+ per milligram of protein. As determined with a Ca2+-selective electrode, a further accumulation of about 160 nmol of Ca2+/mg of protein can be attained ...
Bulenda, D., Gratzl, Manfred
core   +1 more source

Transient exposure to calcium ionophore enables in vitro fertilization in sterile mouse models

Scientific Reports, 2016
Mammalian sperm acquire fertilizing capacity in the female tract in a process called capacitation. At the molecular level, capacitation requires protein kinase A activation, changes in membrane potential and an increase in intracellular calcium ...
Felipe A. Navarrete, Antonio Alvau, Hoi C. Lee, L. Levin, J. Buck, Patricia de León, C. Santi, D. Krapf, J. Mager, R. Fissore, A. Salicioni, A. Darszon, P. Visconti   +12 more
semanticscholar   +1 more source

Ionophore-Based Ion-Selective Nanosensors from Brush Block Copolymer Nanodots

, 2019
The selectivity of ionophore-based sensors is crucial to real applications such as clinical diagnostics and bioimaging. Previous ion-selective nanosensors developed from amphiphilic block copolymers are attractive because of simple fabrication, high ...
Xiaojiang Xie (1289421), Jingying Zhai (1344933), Xinfeng Du (4059391), Renjie Wang (1986553), Xiaoang Li (7139738)   +4 more
core   +1 more source

Voltammetric Mechanism of Multiion Detection with Thin Ionophore-Based Polymeric Membrane

Analytical Chemistry, 2016
The capability to detect multianalyte ions in their mixed solution is an important advantage of voltammetry with an ionophore-based polymeric membrane against the potentiometric and optical counterparts.
Peter J Greenawalt, S. Amemiya
semanticscholar   +1 more source

Comparison of Two Commercially Available Immunoassays for the Measurement of Bovine Cardiac Troponin I in Cattle With Induced Myocardial Injury

Frontiers in Veterinary Science, 2020
Background: Multiple cardiac troponin I (cTnI) immunoassays are commercially available. Overall, assays have not been standardized, and inter-assay differences in the detection of the analyte cardiac troponin I can be clinically relevant.Objective: To ...
Joe S. Smith, Joe S. Smith, Anita Varga, Karsten E. Schober   +3 more
doaj   +1 more source

Photoacoustic Chemical Imaging Sodium Nano-Sensor Utilizing a Solvatochromic Dye Transducer for In Vivo Application

Biosensors, 2023
Sodium has many vital and diverse roles in the human body, including maintaining the cellular pH, generating action potential, and regulating osmotic pressure.
Jeff Folz, Jacalyn H. Wasserman, Janggun Jo, Xueding Wang, Raoul Kopelman   +4 more
doaj   +1 more source

Quantification of the emetic toxin cereulide in food products by liquid chromatography-mass spectrometry using synthetic cereulide as a standard [PDF]

, 2010
Bacillus cereus produces the emetic toxin cereulide, a cyclic dodecadepsipeptide that can act as a K+ ionophore, dissipating the transmembrane potential in mitochondria of eukaryotic cells.
de Veld, P., Monika Ehling-Schulz, Paul H. in ′t Veld, Abee, T., in 't Veld, Paul H, Elisabeth G. Biesta-Peters, Ehling-Schulz, M., Biesta-Peters, E.G., Abee, Tjakko, Martine W. Reij, Richard H. Blaauw, Reij, M.W., Veld, P., de, Blaauw, R.H., Reij, Martine W, Rajkovic, Andreja, Blaauw, Richard H, Tjakko Abee, Rajkovic, A., Ehling-Schulz, Monika, Biesta-Peters, Elisabeth G, Andreja Rajkovic   +21 more
core   +1 more source

Fully Additive Vertical Organic Electrochemical Transistors on Renewable and Compostable Substrates Enable Ultrasensitive Bioelectronics

Advanced Functional Materials, EarlyView.
Fully additive vertical organic electrochemical transistors (vOECTs) with channel‐length of 226 nm on a 50 µm compostable substrate achieve >106 current modulation and ∼36 mS transconductance. Ion‐selective integration enables 1.1 mA dec−1 sensitivity and 36 µm detection limit, highlighting a scalable platform for sustainable electronics and ...
Giulia Frusconi, Samuele Lavelli, Zsolt M. Kovács‐Vajna, Fabrizio Torricelli   +3 more
wiley   +1 more source