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Article
Open AccessDirect profiling of breast cancer-derived extracellular vesicles using Pd-perovskite electrochemical biosensing platform
Extracellular vesicles (EVs) harbor several signaling molecules to maintain intercellular communication. Based on the exosomal cargo type, metabolic, genomic, and proteomic status of parent cells can be invest...
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Article
Open AccessEarly stage evaluation of cancer stem cells using platinum nanoparticles/CD133+ enhanced nanobiocomposite
Cancer stem cells (CSCs) are of great diagnostic importance due to their involvement in tumorigenesis, therapeutic resistance, metastasis and relapse.
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Article
Chitosan/luminol/AgNPs nanocomposite for electrochemiluminescent determination of prostate-specific antigen
A green, environmentally friendly protocol was developed for ultrasensitive and highly specific recognition of prostate-specific antigen (PSA) based on the ECL effect of luminol supported by chitosan-silver na...
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Article
Internet of Things Implementation of Nitrate and Ammonium Sensors for Online Water Monitoring
In this work, we proposed a new wireless sensor to contribute to research aimed at continuous monitoring of nitrate and ammonium in water, which as leading agents of water pollution have become the source of a...
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Article
Open AccessUltrasensitive bioassaying of HER-2 protein for diagnosis of breast cancer using reduced graphene oxide/chitosan as nanobiocompatible platform
In this label-free bioassay, an electrochemiluminescence (ECL) immunosensor was developed for the quantification of breast cancer using HER-2 protein as a metastatic biomarker.
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Article
Open AccessRapid green synthesis of non-cytotoxic silver nanoparticles using aqueous extracts of 'Golden Delicious' apple pulp and cumin seeds with antibacterial and antioxidant activity
A simple, facile and rapid microwave irradiated system was applied to synthesize silver nanoparticles using 'Golden Delicious' apple pulp (Malus domestica) and cumin (Cuminum cyminum) seed extracts. The phytosynt...
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Article
Open AccessAdded value recyclability of glass fiber waste as photo-oxidation catalyst for toxic cytostatic micropollutants
There is an increased interest in recycling valuable waste materials for usage in procedures with high added values. Silica microparticles are involved in the processes of catalysis, separation, immobilization...
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Article
Electrochemiluminescence methods using CdS quantum dots in aptamer-based thrombin biosensors: a comparative study
The detection of thrombin by using CdS nanocrystals (CdS NCs), gold nanoparticles (AuNPs) and luminol is investigated in this work. Thrombin is detected by three methods. One is called the quenching method. It...
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Article
Recent progress in nanomaterial-based electrochemical biosensors for pathogenic bacteria
This review (with 118 refs.) discusses the progress made in electroanalytical methods based on the use of organic and inorganic nanomaterials for the determination of bacteria, specifically of E. coli, Salmone...
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Article
Simultaneous SIA analysis of pH and total acidity measurements in milk
The development of a sequential injection analysis method for automatic determination of pH and total acidity in milk is proposed. For this purpose, firstly, three micro-sized composite pH electrodes were prep...
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Article
A very sensitive flow-injection spectrophotometric determination method for iron (II) and total iron using 2′, 3, 4′, 5, 7-pentahydroxyflavone
In this study, an ultra-sensitive and highly selective, rapid flow-injection spectrophotometric method for the determination of iron (II) and total iron has been proposed. The method was based on the reaction ...
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Article
Flow-injection potentiometric applications of solid state Li+ selective electrode in biological and pharmaceutical samples
A solid state polyvinyl chloride (PVC) membrane Li+-selective electrode was prepared and used as a detector in a low-dead volume flow through cell for the determination of Li+ in pharmaceutical formulations and h...
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Article
Flow injection spectrofluorimetric determination of iron(III) in water using salicylic acid
A simple and fast flow injection fluorescence quenching method for the determination of iron in water has been developed. Fluorimetric determination is based on the measurement of the quenching effect of iron ...
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Article
A simple flow injection spectrophotometric determination method for iron(III) based on O-acetylsalicylhydroxamic acid complexation
A simple and rapid flow-injection spectrophotometric method for the determination of iron(III) and total iron is proposed. The method is based on the reaction between iron(III) and O-acetylsalicylhydroxamic acid ...
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Article
Flow injection spectrophotometric determination of iron(III) using diphenylamine-4-sulfonic acid sodium salt
A highly sensitive and very simple spectrophotometric flow-injection analysis (FIA) method for the determination of iron(III) at low concentration levels is presented. The method is based on the measurement of...
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Article
Levels of gingival tissue platelet activating factor after conventional and regenerative periodontal surgery
The hypothesis, a relationship between gingival tissue platelet activating factor (PAF) levels and healing after periodontal surgery, was tested by measuring PAF levels in gingival tissues collected from sites...
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Article
A Simple Flow-injection Spectrofluorimetric Method for the Determination of Mercury
A highly sensitive flow-injection spectrofluorimetric method is presented for the rapid and simple determination of Hg (II) in environmental and pharmaceutical samples. Murexide (ammonium purpurate) was used a...
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Article
All-Solid-State PVC Membrane Ag+-Selective Electrodes Based on Diaza-18-Crown-6 Compounds
Two diaza-crown ether compounds were synthesized and evaluated as Ag+-selective carriers in polyvinylchloride (PVC) membrane electrodes of solid-state type. The all-solid-state PVC membrane electrode based on N,N...
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Article
Spectrofluorometric determination of mercury (II) with murexide
A very sensitive and selective spectrofluorometric method has been developed for Hg(II) determination in pharmaceutical and environmental samples. The method is based on measuring the decrease in fluorescence ...
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Article
Flow-Injection Spectrophotometric Determination of Nanogram Levels of Iron(III) with N,N-Dimethylformamide
A simple and fast flow-injection spectrophotometric method has been described for the determination of iron(III). The method is based on the measurement of absorbance intensity of the complex that is formed be...
