A new sensor technology could enable touchless displays that respond to moisture emitted by the human body.
Sensors
A Flexible and Sensitive miRNA Biosensor
Low concentrations (10 × 10−15 M) of the disease biomarker microRNA-21 (miRNA-21) can be detected by a flexible biosensor.
International Year of Light: Whispering Gallery Mode Microcavities
The fundamentals and the advances in the fabrication methods of whispering gallery mode cavities, as well as their application prospects are presented in this review article.
A Fluorescent Rotaxane: Molecular Shuttle and Sensor Gel
The fluorescent rotaxane is a molecular shuttle sensitive to temperature, pH, and solvent polarity changes. It forms a gel which changes its fluorescence properties upon acidic/basic gas exposure and can be turned into a liquid by shaking, heating, and by adding anions.
New composite material enables smaller CO2 sensor
Material scientists at ETH Zurich and the Max Planck Institute of Colloids and Interfaces in Potsdam have developed a new type of sensor to measure CO2.
Advanced Optical Materials – June Issue Covers
Check out the articles highlighted on the covers of the latest issue of Advanced Optical Materials.
High-Resolution and Stable Linear Actuator Now also Available with Position Sensor
New linear actuator “N-472” from the “PiezoMike” series with integrated incremental encoder for the closed-loop adjustment of mechanical and optomechanical components. The positioning control is designed for point-to-point motion and nanometer-precise positioning at the target position.
Sensitive Electrochemical Detection of Persistent Toxic Substances
Impedance spectroscopy allows sensitive, simple, cheap devices for the quantitative detection of persistent toxic pollutants.
En route to biological applications: self-assembled fluorescent nanoparticles
Researchers from the Netherlands present a timely overview on self-assembled fluorene or perylene based chromophores focussing on biological applications.
Wearable Strain Sensors via 3D Printing
A multiple core–shell 3D printing method has been developed to fabricate soft, stretchable, fibre-based, capacitive strain sensors. The sensors can be readily integrated into conventional clothing and used in gait monitoring.
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