Examinar OpenAire por departamento (cas.) "Química analítica"
Now showing items 1-20 of 40
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A microfluidic column of water index-matched packed microspheresfor label-free observation of water pollutants
(Springer Nature, 2021-03-28)A microfluidic, label-free optical sensor for water pollutants, which is based on a packed micro-column of microspheres with refractive index similar to that of water, is presented. The perfluoropolyether microspheres are ... -
Adaptive coatings based on polyaniline for direct 2D observation of diffusion processes in microfluidic systems
(Elsevier, 2016-08)[EN] Therefore the understanding and proper evaluation of the flow and mixing behaviour at microscale becomes a very important issue. In this study, the diffusion behaviour of two reacting solutions of HCI and NaOH were ... -
Alginate Bead Biosystem for the Determination of Lactate in Sweat Using Image Analysis
(MDPI, 2021-10-09)Lactate is present in sweat at high concentrations, being a metabolite of high interest in sport science and medicine. Therefore, the potential to determine lactate concentrations in physiological fluids, at the point of ... -
An electroactive and thermo-responsive material for the capture and release of cells
(Elsevier, 2021-06-05)Non-invasive collection of target cells is crucial for research in biology and medicine. In this work, we combine a thermo-responsive material, poly(N-isopropylacrylamide), with an electroactive material, poly(3,4-ethyle ... -
Application of a Biological Multilevel Response Approach in the Copepod Acartia Tonsa for Toxicity Testing of Three Oil Water Accommodated Fractions
(Elsevier, 2021-06-01)Abstract Copepods play a critical role in the marine food webs, being a food source for marine organisms. In this study, we investigated the toxic effects of Water Accommodated Fractions (WAFs) from three types of oil: ... -
Continuous Monitoring of Cell Transfection Efficiency with Micropatterned Substrates
(Wiley, 2021-04-10)The effect of cell-cell contact on gene transfection is mainly unknown. Usually, transfection is carried out in batch cell cultures without control over cellular interactions, and efficiency analysis ... -
Driving Flows in Microfluidic Paper-Based Analytical Devices with a Cholinium Based Poly Ionic Liquid Hydrogel
(Elsevier, 2018-01-31)Paper microfluidics technology requires effective handling and control of fluids, and this remains as asignificant obstacle for their accessibility by end-users, inhibiting their transition from the laboratory intothe ... -
Ex situ and in situ Magnetic Phase Synthesised Magneto-Driven Alginate Beads
(Elsevier, 2022-03-15)[EN] Biocompatible magnetic hydrogels provide a great source of synthetic materials, which facilitate remote stimuli, enabling safer biological and environmental applications. Prominently, the ex situ and in situ magnetic ... -
Fluidic flow delay by ionogel passive pumps in microfluidic paper-based analytical devices
(Elsevier, 2016-10-05)[EN] A new concept for fluid flow manipulation in microfluidic paper-based analytical devices (m-PADs) is presented by introducing ionogel materials as passive pumps. m-PADs were fabricated using a new doubleside contact ... -
Influence of dispersant application on the toxicity to sea urchin embryos of crude and bunker oils representative of prospective oil spill threats in Arctic and Sub-Arctic seas
(Elsevier, 2021-09-09)This study deals with the toxicity assessment of crude and bunker oils representative of prospective oil spill threats in Arctic and Sub-Arctic seas (NNA: Naphthenic North-Atlantic crude oil; MGO: Marine Gas Oil; IFO: ... -
Influence of season-depending ecological variables on biomarker baseline levels in mussels (Mytilus trossulus) from two Baltic Sea subregions
(Science Direct, 2019-06-26)For reliable mussel monitoring programmes based on biomarkers, regionally relevant reference values and their natural variability need to be known. The Baltic Sea exhibits high inter-regional and seasonal variability in ... -
Ionogel-based hybrid polymer-paper handheld platform for nitrite and nitrate determination in water samples.
(Elsevier, 2022-05)[EN] Nowadays, miniaturization and portability are crucial characteristics that need to be considered for the development of water monitoring systems. In particular, the use of handheld technology, including microfluidics, ... -
Ionogel-based Nitrite and Nitrate Sensor for Water Control at the Point-of-Need
(Elsevier, 2016)The increment of uncontrolled nutrients concentration in water is the subject of increasing environmental concern. In particular, the increment of nitrate causes the eutrophication of algae, leading to fauna and flora ... -
Large Volume Self-powered Disposable Microfluidics by the Integration of Modular Polymer Micropumps with Plastic Microfluidic Cartridges
(ACS, 2020-12-10)Microfluidic microsystems are often designed to analyse samples of small volume of fluid, however, some applications require the analysis of larger volumes. The ideal miniaturized microfluidic analytical device should be ... -
Light-responsive Materials for Microfluidic Applications
(Royal Society of Chemistry, 2018-03-07)While the microfluidic device itself may be small, often the equipment required to control fluidics in thechip unit is large e.g. pumps, valves and mixing units, which can severely limit practical use and functionalscalability. ... -
Low‑cost origami fabrication of 3D self‑aligned hybrid microfluidic structures
(Springer, 2016-08)[EN] 3D microfluidic device fabrication methods are normally quite expensive and tedious. In this paper, we present an easy and cheap alternative wherein thin cyclic olefin polymer (COP) sheets and pressure sensitive ... -
Magneto Twister: Magneto Deformation of the Water-Air Interface by a Superhydrophobic Magnetic Nanoparticle Layer
(American Chemical Society, 2022)[EN] Remote manipulation of superhydrophobic surfacesprovides fascinating features in water interface-related applications. Asuperhydrophobic magnetic nanoparticle colloid layer is able to float on the water-air interface ... -
Manipulation of Fluid Flow Direction in Microfluidic Paper-Based Analytical Devices with an Ionogel Negative Passive Pump
(Elsevier, 2017-03-06)Microfluidic paper-based analytical devices (microPADs) are a relatively new group of analytical tools thatrepresent an innovative low-cost platform technology for fluid handling and analysis. Nonetheless, microPADs lack ... -
Microfluidics and materials for smart water monitoring: A review
(Elsevier, 2021-03-13)Water quality monitoring of drinking, waste, continental and seawaters is of great importance to ensure safety and wellbeing for humans, fauna and flora. Researchers are developing robust water monitoring microfluidic ... -
Microtechnologies for Cell Microenvironment Control and Monitoring
(MDPI, 2017-06)A great breadth of questions remains in cellular biology. Some questions cannot be answered using traditional analytical techniques and so demand the development of new tools for research. In the near future, the development ...