A5058114319- Advanced Chemical Sensor Technologies
- Analytical Chemistry and Sensors
- Advanced biosensing and bioanalysis techniques
- Biosensors and Analytical Detection
- Electrochemical Analysis and Applications
- Water Quality Monitoring and Analysis
- Analytical Chemistry and Chromatography
- Electrochemical sensors and biosensors
- Nanopore and Nanochannel Transport Studies
- Environmental DNA in Biodiversity Studies
- Advanced Biosensing Techniques and Applications
- Spectroscopy and Chemometric Analyses
- Gas Sensing Nanomaterials and Sensors
- Photonic and Optical Devices
- Molecular Sensors and Ion Detection
- Identification and Quantification in Food
- Gold and Silver Nanoparticles Synthesis and Applications
- Semiconductor Lasers and Optical Devices
- Horticultural and Viticultural Research
- Graphene research and applications
- Advanced Nanomaterials in Catalysis
- Microfluidic and Capillary Electrophoresis Applications
- Protist diversity and phylogeny
- Food Quality and Safety Studies
- Air Quality Monitoring and Forecasting
International Iberian Nanotechnology Laboratory
2021-2024
Consejo Superior de Investigaciones Científicas
2013-2014
Institut de Microelectrònica de Barcelona
2007-2012
Centro Nacional de Microelectrónica
2008-2012
St Petersburg University
1995-2005
Herein, we present a new luminescent-based analytical method for sensitive fluorometric determination of milk allergen, β-lactoglobulin (β-LG), in food products based on portable, low-cost, and easy-to-use microfluidic paper-based device (µPAD). For this purpose, the developed µPAD consisted β-LG specific aptamer immobilized cellulose disk, fluorescent Carbon Quantum Dots (CQDs) bioconjugated with its complementary oligonucleotide (DNA), which worked as label hybridization DNA (CQDs-DNA). In...
Liquid-gated Graphene Field-Effect Transistors (GFET) are ultrasensitive bio-detection platforms carrying out the graphene’s exceptional intrinsic functionalities. Buffer and dilution factor prevalent strategies towards optimum performance of GFETs. However, beyond Debye length (λD), role graphene-electrolytes’ ionic species interactions on DNA behavior at nanoscale interface is complicated. We studied characteristics GFETs under different strength, pH, electrolyte type, e.g., phosphate...
An integrated multisensor composed by six ISFET devices selective to common ions and heavy metals combined with a flow injection analysis (FIA) system has been applied as an electronic tongue grape juice wine sample analysis. The data obtained for several variety samples have treated using multiparametric tools like principal component (PCA) soft independent modelling class analogy technique (SIMCA) the patterning recognition classification of partial least squares (PLS) regression...
This work presents a multiparametric system capable of characterizing and classifying white wines according to the grape variety geographical origin. Besides, it quantifies specific parameters interest for quality control in wine. The system, known as hybrid electronic tongue, consists an array electrochemical microsensors—six ISFET based sensors, conductivity sensor, redox potential sensor two amperometric electrodes, gold microelectrode sensing oxygen demand—and miniaturized optofluidic...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> The design, fabrication, and application of a monolithically integrated array chemical sensors is presented. multisensor chip includes six independent ion selective field effect transistors (ISFETs), pair interdigitated platinum electrodes, diode temperature sensor. Simultaneous polarization multiple ISFETs enabled by electrical isolation the devices using two different approaches: trenches p-n...
Abstract A compact flow system that includes two electrochemical transducers integrated in a miniaturized cell is reported. Each transducer shows an on‐chip thin‐film gold three‐electrode configuration. The was machined on polymethyl methacrylate substrates, together with the required minifluidic elements for sample conditioning and analysis. These include several pumps valves enabled to work automatic fashion. Its performance assessed by analyzing copper, catechol parathion, using different...
Several developments over the last few years are being directed toward improving DNA-based analysis to simplify, miniaturize, and reduce time cost of analysis, with objective allow its use in decentralized settings. One most interesting fields is DNA extraction purification, a key step for ensuring good analytical performance. In this sense, microscale solid phase (μSPE) offers paramount advantages an improved yield. work, we have developed miniaturized module purification based on μSPE...
An analytical system for multicomponent analysis of liquids based on a light addressable potentiometric sensor (LAPS) with an array ion-sensitive polymer membranes is presented. A developed LAPS device BESOI wafer which permits easy fabrication thin silicon membrane and enhanced spatial resolution. To generate the photocurrent backside was illuminated using new technical approach DLP (Digital Light Processing) chip used in video projectors. When coordinated digital graphic signal, source,...