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In vivo dynamic tracking of cerebral chloride regulation using molecularly tailored liquid/liquid interfacial ultramicro iontronics.
Sci Adv
December 2024
Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
Article Synopsis
- Chloride ions play a crucial role in brain function and are linked to neurodegenerative diseases, but traditional methods for detecting them are ineffective due to their inactivity in electrochemical reactions.
- A new technique using specially designed liquid/liquid interfacial ultramicro iontronics (L/L-UIs) allows for the real-time sensing of these chloride ions in living organisms by utilizing unique ionophores in a gel.
- This method not only demonstrates the dynamic regulation of chloride ions in neurons influenced by GABA receptors but also opens up possibilities for tracking other important ions and molecules in the brain, aiding in research and treatment of various brain disorders.
Comparison of Two Analytical Techniques of Biomass Burning Markers in PM and PM From Zabrze, Southern Poland.
J Sep Sci
November 2024
Research Laboratory, Institute of Environmental Engineering Polish Academy of Science, Zabrze, Poland.
Article Synopsis
- - Biomass is gaining attention as an alternative energy source due to environmental concerns, but its combustion releases harmful substances that affect air quality and health.
- - The study compares two analytical methods, GC-MS and HPAEC-PAD, for detecting biomass combustion markers, finding HPAEC-PAD to have easier sample prep and better detection limits, especially for galactosan.
- - Despite HPAEC-PAD's advantages, GC-MS is still beneficial for identifying complex mixtures, highlighting the need for future research on aerosol analysis and methodologies for analyzing monosaccharides.
Sensitive and eco-friendly voltammetric detection of galantamine using a screen-printed sensor with a functional boron-doped diamond electrode.
Talanta
March 2025
Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093, Warsaw, Poland; Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089, Warsaw, Poland. Electronic address:
The presented study focused on developing and optimizing a modern electroanalytical platform for the direct quantitative determination of galantamine. This work used different voltammetric methods to use a screen-printed sensor with a working boron-doped diamond electrode (SP/BDDE). Beneficial analytical performance for detecting galantamine was achieved in a Britton-Robinson buffer with pH 3.
View Article and Find Full Text PDFNanohexagonal iron barium titanate nanoparticles surface-modified NiFeO composite screen-printed electrode for enzymatic glucose monitoring.
RSC Adv
October 2024
Solid State Physics Department, Physics Research Division, National Research Centre 33 El Bohouth St., Dokki Giza 12622 Egypt.
A nanocomposite of iron barium titanate/NiFeO (FBT/NF) was synthesized using sol-gel techniques to form organized hexagonal structures. The effects of NiFeO nanostructures on FBT's phase purity, morphology, and dielectric properties were systematically explored and intensively discussed. TEM imaging confirmed the hexagonal structure, and electrical measurements revealed that para-electric NF influenced the conductivity and impedance of ferroelectric FBT, with a shift in Curie temperature to lower values.
View Article and Find Full Text PDFShattering the Water Window: Comprehensive Mapping of Faradaic Reactions on Bioelectronics Electrodes.
ACS Appl Mater Interfaces
October 2024
Bioelectronics Materials and Devices Laboratory, Central European Institute of Technology CEITEC, Brno University of Technology, Purkyňova 123, Brno 61200, Czech Republic.
It is generally accepted that for safe use of neural interface electrodes, irreversible faradaic reactions should be avoided in favor of capacitive charge injection. However, in some cases, faradaic reactions can be desirable for controlling specific (electro)physiological outcomes or for biosensing purposes. This study aims to systematically map the basic faradaic reactions occurring at bioelectronic electrode interfaces.
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