Skip to main content

Keywords

Technology Portfolios

Stock image UAV drone monitoring gas near pipeline valves
Rugged, power-efficient and compact system based on TDLAS for remote sensing of multiple gases in challenging environments

LLNL researchers have developed a TDLAS-based, standalone, real-time gas analyzer in a small form-factor for continuous or single-point monitoring.  The system can analyze multiple gases with ultra-high sensitivity (ppm detection levels) in harsh conditions when utilizing wavelength-modulation spectroscopy (WMS). 

Schematic of 2P3C setup. Pump laser component is in red while probe laser component is denoted in blue.
Trace Gas Detection with 2P3C Ring-Down Spectroscopy

LLNL’s novel approach combines 2-color spectroscopy with CRDS, a combination not previously utilized.

3D MEA device prior to actuation. A) A completed device. B) Close-up image of a single cell culture well. The large dark metal features at the top and bottom of each cell culture well are ground electrodes, which are all electrically shorted to each other. C) Light micrograph of a single 3DMEA post-actuation. The hinge regions are plastically deformed and allow the probes to stand upright without additional supports.
A 3-dimensional in vitro flexible microelectrode array (MEA)

To replicate the physiology and functionality of tissues and organs, LLNL has developed an in vitro device that contains 3D MEAs made from flexible polymeric probes with multiple electrodes along the body of each probe. At the end of each probe body is a specially designed hinge that allows the probe to transition from lying flat to a more upright position when actuated and then…