Search Results - "Tsogas, George Z."

Programming Fluid Transport in Paper-Based Microfluidic Devices Using Razor-Crafted Open Channels by Giokas, Dimosthenis L, Tsogas, George Z, Vlessidis, Athanasios G

“…Manipulating fluid transport in microfluidic, paper-based analytical devices (μPADs) is an essential prerequisite to enable multiple timed analytical steps on…”
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Development of a Paper-Based Analytical Method for the Colorimetric Determination of Calcium in Saliva Samples by Tarara, Maria, Tzanavaras, Paraskevas D, Tsogas, George Z

“…A novel, rapid, and facile method for the colorimetric determination of calcium using micro-analytical paper-based devices (μ-PADs) was developed. The proposed…”
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O-Phthalaldehyde Derivatization for the Paper-Based Fluorometric Determination of Glutathione in Nutritional Supplements by Tarara, Maria, Tzanavaras, Paraskevas D, Tsogas, George Z

“…Herein, a new, direct paper-based fluorimetric method is described for the quantitative determination of glutathione (GSH) molecules in nutritional…”
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Analyte-mediated formation and growth of nanoparticles for the development of chemical sensors and biosensors by Tsogas, George Z., Vlessidis, Athanasios G., Giokas, Dimosthenis L.

“…The cornerstone of nanomaterial-based sensing systems is the synthesis of nanoparticles with appropriate surface functionalization that ensures their stability…”
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A Novel Equipment-Free Paper-Based Fluorometric Method for the Analytical Determination of Quinine in Soft Drink Samples by Tsaftari, Vasiliki C, Tarara, Maria, Tzanavaras, Paraskevas D, Tsogas, George Z

“…A simple, equipment-free, direct fluorometric method, employing paper-based analytical devices (PADs) as sensors, for the selective determination of quinine…”
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Smartphone-Based High-Throughput Fluorimetric Assay for Histidine Quantification in Human Urine Using 96-Well Plates by Baltzis, Dimitrios, Tsogas, George Z, Zacharis, Constantinos K, Tzanavaras, Paraskevas D

“…A high-throughput fluorimetric assay for histidine was developed, using a 96-well plates platform. The analyte reacts selectively with o-phthalaldehyde under…”
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A Low-Cost Colorimetric Assay for the Analytical Determination of Copper Ions with Consumer Electronic Imaging Devices in Natural Water Samples by Gkouliamtzi, Argyro G, Tsaftari, Vasiliki C, Tarara, Maria, Tsogas, George Z

“…This study reports a new approach for the determination of copper ions in water samples that exploits the complexation reaction with diethyldithiocarbamate…”
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Ligand-free gold nanoparticles as colorimetric probes for the non-destructive determination of total dithiocarbamate pesticides after solid phase extraction by Giannoulis, Kyriakos M., Giokas, Dimosthenis L., Tsogas, George Z., Vlessidis, Athanasios G.

“…In this work, we describe a simple and sensitive non-destructive method for the determination of the total concentration of dithiocarbamate fungicides (DTCs)…”
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Development of a Paper-Based Analytical Method for the Selective Colorimetric Determination of Bismuth in Water Samples by Bizirtsakis, Panagiotis A, Tarara, Maria, Tsiasioti, Apostolia, Tzanavaras, Paraskevas D, Tsogas, George Z

“…A novel, direct and simple colorimetric method employing μicroanalytical paper-based devices (μ-PADs) for the selective determination of bismuth is described…”
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Wax-Printed Fluidic Controls for Delaying and Accelerating Fluid Transport on Paper-Based Analytical Devices by Tarara, Maria, Giokas, Dimosthenis L., Tsogas, George Z.

“…In this work, we explore a new method for controlling fluid transport rate on paper-based analytical devices that enables both the delay and the acceleration…”
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Generic Assay of Sulfur-Containing Compounds Based on Kinetics Inhibition of Gold Nanoparticle Photochemical Growth by Kostara, Anastasia, Tsogas, George Z, Vlessidis, Athanasios G, Giokas, Dimosthenis L

“…This work describes a new, equipment-free, generic method for the determination of sulfur-containing compounds that is based on their ability to slow down the…”
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Indirect chemiluminescence-based detection of mefenamic acid in pharmaceutical formulations by flow injection analysis and effect of gold nanocatalysts by Zisimopoulos, Evangelos G., Tsogas, George Z., Giokas, Dimosthenis L., Kapakoglou, Nikolaos I., Vlessidis, Athanasios G.

“…A highly sensitive flow injection-chemiluminescence detection (FI-CL) method based on periodate oxidation of two popular luminescent compounds for the…”
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Development of an equipment free paper based fluorimetric method for the selective determination of histidine in human urine samples by Tarara, Maria, Tsiasioti, Apostolia, Tzanavaras, Paraskevas D., Tsogas, George Z.

“…A direct fluorimetric method, employing μicro-analytical paper-based devices (μ-PADs) for the selective determination of histidine (HIS) is described. The…”
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Intrinsic peroxidase-like activity of rhodium nanoparticles, and their application to the colorimetric determination of hydrogen peroxide and glucose by Choleva, Tatiana G., Gatselou, Vasiliki A., Tsogas, George Z., Giokas, Dimosthenis L.

“…The intrinsic peroxidase-like activity of rhodium nanoparticles (RhNPs) and their use as catalytic labels for sensitive colorimetric assays is presented. RhNPs…”
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High-throughput and green optical sensing of thiocyanate in human saliva based on microplates and an overhead book scanner as detector by Baltzis, Dimitrios, Zacharis, Constantinos K., Tsogas, George Z., Tzanavaras, Paraskevas D.

“…An instrumental-free, high-throughput assay has been developed for the quantification of thiocyanate in human saliva. The proposed green method is based on the…”
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On the re-assessment of the optimum conditions for the determination of platinum, palladium and rhodium in environmental samples by electrothermal atomic absorption spectrometry and microwave digestion by Tsogas, George Z., Giokas, Dimosthenis L., Vlessidis, Athanasios G., Evmiridis, Nicholaos P.

“…The experimental conditions for the determination of platinum, palladium and rhodium by graphite furnace atomic absorption spectrometry (GFAAS) are…”
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Development of a sequential extraction and speciation procedure for assessing the mobility and fractionation of metal nanoparticles in soils by Choleva, Tatiana G., Tsogas, George Z., Vlessidis, Athanasios G., Giokas, Dimosthenis L.

“…This study describes the development of a sequential extraction procedure for the evaluation of metal nanoparticle mobility and bioaccessibility in soils. The…”
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Ultratrace Determination of Silver, Gold, and Iron Oxide Nanoparticles by Micelle Mediated Preconcentration/Selective Back-Extraction Coupled with Flow Injection Chemiluminescence Detection by Tsogas, George Z, Giokas, Dimosthenis L, Vlessidis, Athanasios G

“…A new method has been developed for the ultrasensitive determination of silver, gold, and iron oxide nanoparticles in environmental samples. Cloud point…”
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Determination of silver nanoparticles by atomic absorption spectrometry after dispersive suspended microextraction followed by oxidative dissolution back-extraction by Choleva, Tatiana G., Tsogas, George Z., Giokas, Dimosthenis L.

“…This study presents a liquid phase microextraction method for the quantification of silver nanoparticles (AgNPs) in environmental samples by means of directly…”
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Single-point calibration and standard addition assays on calibrant-loaded paper-based analytical devices by Giannoulas, George, Tsogas, George Z., Giokas, Dimosthenis L.

“…This article describes a new, simplified approach for performing quantitative colorimetric assays on paper-based analytical devices that uses calibrant-loaded…”
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