A5008467680- Advanced biosensing and bioanalysis techniques
- Analytical Chemistry and Sensors
- Analytical chemistry methods development
- Quantum Dots Synthesis And Properties
- Biosensors and Analytical Detection
- Mass Spectrometry Techniques and Applications
- Electrochemical sensors and biosensors
- Nanocluster Synthesis and Applications
- Electrochemical Analysis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Nanomaterials in Catalysis
- Water Quality Monitoring and Analysis
- Nanoparticles: synthesis and applications
- Gas Sensing Nanomaterials and Sensors
- Advanced Chemical Sensor Technologies
- Mercury impact and mitigation studies
- Carbon and Quantum Dots Applications
- Advanced Biosensing Techniques and Applications
- Field-Flow Fractionation Techniques
- Analytical Chemistry and Chromatography
- Molecular Sensors and Ion Detection
- Luminescence and Fluorescent Materials
- Chalcogenide Semiconductor Thin Films
- Ion-surface interactions and analysis
- Microfluidic and Capillary Electrophoresis Applications
Universidad de Oviedo
2016-2025
University of Edinburgh
2009-2014
Universitat de Barcelona
2001-2009
InterDigital (United States)
2008
Indiana University Bloomington
2000
University of Trás-os-Montes and Alto Douro
1998
Nortel (Canada)
1997
Universitat Autònoma de Barcelona
1976-1982
Carbon dots have demonstrated great potential as luminescent nanoparticles in bioapplications. Although such appear to exhibit low toxicity compared other metal nanomaterials, today we know that the of carbon (C-dots) strongly depends on protocol fabrication. In this work, aqueous fluorescent C-dots been synthesized from cinnamon, red chilli, turmeric and black pepper, by a one-pot green hydrothermal method. The were firstly characterized means UV–vis, fluorescence, Fourier transform...
Water-soluble luminescent CdSe quantum dots surface-modified with 2-mercaptoethane sulfonate were synthesized for the selective determination of free cyanide in aqueous solution high sensitivity (detection limit 1.1 × 10−6 M), via analyte-induced changes their photoluminescence after photoactivation.
Abstract Nanoparticles are increasingly being used as advantageous alternatives to commonly contrast agents in bioimaging, not only due their improved imaging capabilities but also great potential theranostics. Herein, carbon quantum dots (CQDs) codoped with nitrogen and lanthanides (i.e., Gd Yb) synthesized using a one‐pot microwave‐assisted hydrothermal method evaluated multimodal for purposes. The obtained doped‐CQDs exhibit an intense fluorescence emission excellent yields (66 ± 7%)...
Adulterations of olive oil are performed by adding seed oils to this high-quality product, which cheaper than oils. Food safety controls have been established the European Union avoid these episodes. Most methodologies require expensive equipment, time-consuming procedures, and expert personnel execute. Near-infrared spectroscopy (NIRS) technology has many applications in food processing industry. It analyzes quality parameters along chain. Using principal component analysis (PCA),...
In this mini-review recent applications of quantum dots in bioanalytics and biolabeling are discussed. The state-of-the-art the field is summarized, some selected highlighted, future directions suggested.
AbstractThis article gives an overview of the different techniques used to identify, characterize, and quantify engineered nanoparticles (ENPs). The state-of-the-art field is summarized, characterization have been grouped according information they can provide. In addition, some selected applications are highlighted for each technique. classification has carried out main physical chemical properties such as morphology, size, polydispersity characteristics, structural information, elemental...
One of the most consumed foods is milk and products, guaranteeing suitability these products one major concerns in our society. This has led to development numerous sensors enhance quality controls food chain. However, this not a simple task, because it necessary establish parameters be analyzed often, only compound responsible for contamination or degradation. To attempt address problem, multiplex analysis together with non-directed (e.g., general such as pH) are relevant alternatives...
The intentional introduction of transition metal impurities into semiconductor nanocrystals is an attractive approach for tuning quantum dot photoluminescence emission. Particularly, doping ZnS dots with Mn2+ (Mn:ZnS QDs) results in a phosphorescence-type emission, attributed to the incorporation manganese ions nanocrystal structure, so that delayed radiational deactivation energy nanoparticles, excited through levels metal, enabled. However, development effective strategies can be...
A reliable and robust direct screening methodology based on a quantum dot (QD) fluorescent immunoassay has been developed to detect trace levels of different antibiotic species from the family tetracyclines (e.g., oxytetracycline, tetracycline, chlortetracycline, doxycycline) in contaminated bovine muscle tissues. First, synthesis characterization new immunoprobe (oxytetracycline-bovine serum albumin-QD) carried out for its further application development competitive QD-immunoassay. The...
The analytical potential of a nanosecond laser ablation inductively coupled plasma mass spectrometer system, equipped with an ultra-fast wash-out chamber, is critically investigated for fast and highly spatially resolved (∼μm) qualitative elemental distribution within single cells.
Absolute protein quantification methods based on molecular mass spectrometry usually require stable isotope-labeled analogous standards for each target or peptide under study, which in turn must be certified using natural standards. In this work, we report a direct and accurate methodology capLC-ICP-QQQ online isotope dilution analysis the absolute sensitive of intact proteins. The combination postcolumn addition 34S generic S-containing internal standard spiked to sample provides full...