A5052828155- Biosensors and Analytical Detection
- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Graphene research and applications
- Microfluidic and Capillary Electrophoresis Applications
- Molecular Junctions and Nanostructures
- Acoustic Wave Resonator Technologies
- Diatoms and Algae Research
- Aquatic Ecosystems and Phytoplankton Dynamics
- Bacteriophages and microbial interactions
- Advanced Chemical Sensor Technologies
- Oral microbiology and periodontitis research
- Nanowire Synthesis and Applications
- Antibiotics Pharmacokinetics and Efficacy
- Semiconductor materials and devices
- Antimicrobial Peptides and Activities
- Advancements in Semiconductor Devices and Circuit Design
- Microfluidic and Bio-sensing Technologies
- Electrochemical Analysis and Applications
- Bacterial Identification and Susceptibility Testing
Institut de Microelectrònica de Barcelona
2015-2024
Centro Nacional de Microelectrónica
2015-2021
Universitat Autònoma de Barcelona
2019
A novel strategy for selective immobilization of bacteria on a 3D impedimetric transducer sensing antimicrobial reagents.
The persistence of photoresist residues from microfabrication procedures causes significant obstacles in the technological advancement graphene-based electronic devices. These induce undesired chemical doping effects, diminish carrier mobility, and deteriorate signal-to-noise ratio, making them critical certain contexts, including sensing electrical recording applications. In graphene solution-gated field-effect transistors (gSGFETs), presence polymer contaminants makes it difficult to...
Abstract An impedimetric transducer based on an interdigitated electrode array (IDEA) modified with polyethyleneimine was used to study interactions bacteria present in a sample solution. Bacteria immobilization the sensor surface affects charge and produces changes superficial impedance. The chemically by layer‐by‐layer (LbL) method oppositely charged polyelectrolyte layers alternating (PEI) poly(sodium 4‐styrenesulfonate) (PSS). Escherichia coli gram‐negative were employed as model for...
In the last decade, solution-gated graphene field effect transistors (GFETs) showed their versatility in development of a miniaturized multiplexed platform for electrophysiological recordings and sensing. Due to working mechanism, surface functionalisation immobilisation receptors are pivotal ensure proper functioning devices. Herein, we present controlled covalent strategy based on molecular design electrochemical triggering, which provide monolayer-like micro-GFET arrays retaining...
Abstract Graphene solution‐gated field‐effect transistors (gSGFETs) offer high potential for chemical and biochemical sensing applications. Among the current trends to improve this technology, functionalization processes are gaining relevance its crucial impact on biosensing performance. Previous efforts focused simplifying attachment procedure from standard multi‐step single‐step strategies, but they still suffer overreaction, impurity issues limited a particular ligand. Herein, novel...
Antibiotic resistant bacteria are an important threat to human and animal health. Accurate antibiotic susceptibility test results essential in medical control. We present a low-cost, simple, rapid multichannel system for the registration of pH changes time phenomena used follow microbial metabolic activity evaluate response antibiotics. Small size silicon chips covered with thin layer Ta2O5 were employed as all-solid-state pH-sensors. The measurements performed 1 mL samples Eppendorf tubes...
The excessive growth of cyanobacteria in freshwater sources produces the development toxic blooms mainly due to production cyanotoxins. Here, a novel impedimetric biosensor based on three-dimensional interdigitated electrode array (3D-IDEA) for detection cells is reported. 3D-IDEA sensor surface biofunctionalization was performed by means layer-by-layer method using polyethyleneimine (PEI) as anchoring layer and concanavalin A (Con A) bioreceptor lipopolysaccharides cells. developed PEI-Con...