A new electrode for electroretinography (ERG) has been produced. The new device made of gold filament was applied as corneal and noncorneal electrod. Flash ERG and pattern ERG were recorded in normal subjects using this new electrode and compared with those made by available electrodes. There were so significant differences in amplitude and latency between the new electrode placed on the cornea and the JET-type electrode. For pattern ERG there were no significant differences between the new electrode placed in the lower fornix and a gold-foil-type electrode. As this new electrode is less expensive and more comfortable than the available electrodes, it is clinically useful.
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http://dx.doi.org/10.1159/000310644 | DOI Listing |
Crit Rev Anal Chem
January 2025
Chemistry Department, Faculty of Science, Cairo University, Giza, Egypt.
Epilepsy is a serious neurological disease that impacts all facets of a patient's life, including their socioeconomic situation. The failure to identify underlying epileptic signatures in their early stages might result in severe harm to the central nervous system (CNS) and permanent adverse changes to some organs. Therefore, numerous antiepileptic drugs (AEDs are frequently used to control and treat the frequency of seizures.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China; Engineering Research Center of Oilfield Chemistry, Ministry of Education, Chengdu 610500, PR China; Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu 610500, PR China. Electronic address:
In this study, polyamide/silica/sodium alginate (SA) composite (PA-Si-SA) was successfully prepared in one-step benzoxazine-isocyanide chemistry (BIC)/sol-gel process at room temperature. The chemical structure and fundamental properties of PA-Si-SA were characterized by FT-IR, solid-state C NMR, XPS, XRD, SEM, BET and TG, etc. The presence of anionic SA and diverse N, O-containing functional segments (amide, tertiary amine, alkyl/phenol -OH, Si-O-Si, and COO) in PA-Si-SA endows it synergistic complexation capability toward Pb and Cd.
View Article and Find Full Text PDFTalanta
December 2024
NanoBiosensors and Biodevices Lab, School of Medical Science and Technology, Indian Institute of Technology Kharagpur, West Bengal, 721302, India. Electronic address:
This work presents a robust strategy for quantifying overlapping electrochemical signatures originating from complex mixtures and real human plasma samples using nickel-based electrochemical sensors and machine learning (ML). This strategy enables the detection of a panel of analytes without being limited by the selectivity of the transducer material and leaving accommodation of interference analysis to ML models. Here, we fabricated a non-enzymatic electrochemical sensor for L-lactic acid detection in complex mixtures and human plasma samples using nickel oxide (NiO) nanoparticle-modified glassy carbon electrodes (GCE).
View Article and Find Full Text PDFTalanta
January 2025
Department of Chemistry, State University of Ponta Grossa, Ponta Grossa, CEP 84030-900, PR, Brazil. Electronic address:
The challenge of increasing food production while maintaining environmental sustainability can be addressed by using biofertilizers such as Azospirillum, which can enhance plant growth and colonize more than 100 plant species. The success of this biotechnology depends on the amount of plant growth-promoting bacteria associated with the plant during crop development. However, monitoring bacterial population dynamics after inoculation requires time-consuming, laborious, and costly procedures.
View Article and Find Full Text PDFAdv Colloid Interface Sci
December 2024
Department of Physical Chemistry, Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University (VU), Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; Department of Nanotechnology, State Research Institute Center for Physical Sciences and Technology (FTMC), Saulėtekio Ave. 3, LT-10257 Vilnius, Lithuania. Electronic address:
The key step in the entire molecularly imprinted polymer (MIP) preparation process is the formation of the complementary cavities in the polymer matrix through the template removal process. The template is removed using chemical treatments, leaving behind selective binding sites for target molecules within the polymer matrix. Other MIP preparation steps include mixing monomers and template molecules in the appropriate solvent(s), monomer-template complex equilibration, and polymerisation of the monomers around the template.
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