Imec and Holst Centre report single-chip ethylene sensor to monitor fruit ripening
May 15, 2012 // Julien Happich
Imec and Holst Centre have demonstrated a single-chip electrochemical sensor for ethylene monitoring with a detection limit of 200-300ppb (parts per billion).
This solution enables small-size and low-cost ethylene detection systems applicable in the fruit distribution and retail sector. Ethylene is a gaseous plant hormone, produced by fruit, and responsible for the ripening of fruit. It is also sprayed in high concentrations (around 1,000 ppm) in the warehouse, to force fruit to ripen, so it is ready to eat when it reaches consumers. Inexpensive and accurate ethylene sensors would enable better control of that process, and allow the distribution sector and retailers to avoid waste. Today's ethylene detection systems are lab-scale, expensive table-top devices, not suitable for the above mentioned applications.
Imec and Holst Centre’s ethylene sensor is a low-cost electrochemical sensor based on a non-acidic electrolyte that does not evaporate. It can be fabricated on cheap substrates such as glass or foil. Recent improvements have shown that the ethylene sensor is able to detect 100ppb steps in concentrations below 1ppm, which makes it directly useful in warehouse applications. To our knowledge, it is the first time that a single-chip ethylene sensor has been demonstrated combining low, industrially relevant detection limits with low power consumption and low cost.
The chip is ready for industrialization, to be integrated into ethylene measurement and control systems and further miniaturization is under way, with research being carried out to increase the performance towards lower detection limits (at around 10 to 20 ppb) to enable other applications such as monitoring of plants, vegetables or flowers in greenhouses. The development of dedicated read-out electronics could enable further miniaturization of the system as a whole, and the use of flexible substrates could pave the way for smart food crop packaging.
Visit imec at www.imec.be
Visit the Holst Centre at www.holstcentre.comAll news
Wearable: 'Hardware Ponzi Scheme'
August 31, 2015
If "fitness bands are like hardware Ponzi schemes" where device suppliers must sell more and more new hardware while amusing ...
Keysight expands calibration, asset management services in Europe
Real-time 3D athletes tracking feeds teams with new stats
Intel Investment spotlights drones’ opportunity for chipmakers
MOSFET failure protection for a single output polyPhase converter
Apple joins Pentagon alliance to develop wearable tech
August 28, 2015
The Pentagon (Washington, DC) has announced a Silicon Valley-based manufacturing institute and partnership with a consortium ...
Single material layer process lowers LED manufacturing costs
Aquion Energy forges technology partnership with Eguana Technologies
The route to cleaner e-cars - coupling perovskite solar cells
- Software-Defined Radio Handbook
- Why Making the Move from a Variable Transformer to a VariPLUS is the Right Decision
- Automating Leakage and Functional Testing
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: Ambiq sees broader options for low voltage
Mike Noonen, recently appointed interim CEO at microcontroller startup Ambiq Micro, discusses the focus and opportunities for this pioneering company designing circuits that can operate below the threshold ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, Novelda is giving away two full XeThru Inspiration kits worth 1499 US Dollars each, for EETimes Europe's readers to experiment first hand with its XeThru technology.Based on the use of radio waves, rather than infrared, ultrasound or light, the company's X2M1000 Inspiration modules can detect presence just from the chest movement while breathing, and measure both the rate and... MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.