LC biosensors (Bio-LC): new resonant sensors for direct detection of airborne viruses.

Viruses suspended in the air are key in the transmission of infectious diseases. We present a label-free selective system capable of detecting in situ airborne viruses in ambient air, employing resonant LC (Inductor-Capacitator) circuits. As proof of principle, M13 bacteriophages were nebulized and monitored with this sensor.

Finite Element Models of Gold Nanoparticles and Their Suspensions for Photothermal Effect Calculation.

(1) Background: The ability of metal nanoparticles to carry other molecules and their electromagnetic interactions can be used for localized drug release or to heat malignant tissue, as in the case of photothermal treatments. Plasmonics can be used to calculate their absorption and electric field enhancement, which can be further used to predict the outcome of photothermal experiments. In this study, we model the nanoparticle geometry in a Finite Element Model calculus environment to calculate the effects that occur as a response to placing it in an optical, electromagnetic field, and also a model of the experimental procedure to measure the temperature rise while irradiating a suspension of nanoparticles.

Tailored cancer therapy by magnetic nanoparticle hyperthermia: A virtual scenario simulation method.

Background And Objective: Hyperthermia is a cancer treatment aiming to induce cell death by directly warming cancerous tissues above 40 °C. This technique can be applied both individually and together with other cancer therapies. The main challenge for researchers and medics is to heat only tumoral cells avoiding global or localized heating of sane tissues.

Freeze-Damage Detection in Lemons Using Electrochemical Impedance Spectroscopy.

Lemon is the most sensitive citrus fruit to cold. Therefore, it is of capital importance to detect and avoid temperatures that could damage the fruit both when it is still in the tree and in its subsequent commercialization. In order to rapidly identify frost damage in this fruit, a system based on the electrochemical impedance spectroscopy technique (EIS) was used.

Early Detection of Freeze Damage in Navelate Oranges with Electrochemical Impedance Spectroscopy.

The early detection of freeze damage in Navelate oranges (Citrus sinensis L. Osbeck) was studied using electrochemical impedance spectroscopy (EIS), which is associated with a specific double-needle sensor. The objective was to identify this problem early in order to help to determine when a freeze phenomenon occurs.

Glyphosate detection with ammonium nitrate and humic acids as potential interfering substances by pulsed voltammetry technique.

Pulsed voltammetry has been used to detect and quantify glyphosate on buffered water in presence of ammonium nitrate and humic substances. Glyphosate is the most widely used herbicide active ingredient in the world. It is a non-selective broad spectrum herbicide but some of its health and environmental effects are still being discussed.