[ Instrument R&D in Instrument Network ] June 3, according to a new study by a physicist at the University of Alberta, a new sensor for detecting carbon dioxide can be manufactured on a simple piece of paper. The paper-based sensor developed by the researchers turned orange when exposed to carbon dioxide. Scientists say this cheap, easy-to-produce sensor can be used in smart buildings or other facilities that require continuous monitoring of carbon dioxide.
Image source: Al Meldrum
The researchers showed a versatile and easy-to-manufacture paper carbon dioxide sensor composed of specially designed fluorescent color-shifting chromophores injected into standard filter paper. Due to the formation of carbonic acid, the emission color of the resulting fluorescent paper changes when exposed to carbon dioxide, which is the basis of the sensing mechanism. By using the proportional method, the adverse effects of photobleaching can be eliminated, thereby achieving stable and repeatable sensor performance. The response time of these multi-purpose sensors is about 1 minute, and has a lower detection limit for paper carbon dioxide gas sensors, which indicates that there may be low-cost applications in carbon dioxide smart buildings or other facilities that require continuous monitoring of levels. And because of its paper base, this sensor is inexpensive to manufacture and provides a simple template for mass production.
Al-Meldrum, the physicist and co-author of the study led by graduate student Wang Hui, said: "You can basically think of it as a touchstone for carbon dioxide. This work shows that you can Use a simple piece of paper to make a sensitive carbon dioxide detector. One can easily imagine that mass-produced carbon dioxide or other gas sensors use the same basic method."
Medram explained: "In smart buildings, carbon dioxide sensors can tell you about living conditions and where people tend to gather and spend time by detecting the carbon dioxide we exhale, which helps to help the building use and design. If carbon dioxide sensors are sensitive enough for many applications, they may be very expensive at the moment, so cheap and mass-produced alternatives may be beneficial for these applications."
Although research has proven the sensing capabilities and performance of the technology, Medram pointed out that mass production of such sensors requires further design, optimization and packaging.
This research was funded by the Graduate School of International Mixed Functional Materials of the Alberta/Munich University of Technology and the University of the Future Energy Systems of the United States. This research "An Ultra-Sensitive Fluorescent Paper-Based Carbon Dioxide Sensor" was published on ACS Applied Materials and Interfaces .
(Original title: Scientists have developed paper carbon dioxide sensors that are easy to manufacture)
Flat Bag On Roll
Flat Bags on Roll is commonly used in every industry, such as electronically products, accessories,household, cosmetic, commodity, stationery, toy, fruits,vegetable and food products etc. Specially in packing of fresh fruits, fresh vegetables, meat, seafood, cakes,chocolates, candy, cookies,biscuits and so on.
The bags could be in big roll for industry and supermarket or in small or for household.
Flat Poly Bags,Flat Plastic Bags,Flat Polypropylene Bags,Flat Poly Bags On Rolls,Roll Bags,Plastic Roll Bags,Freezer Bag Rolls
BILLION PLASTIC MANUFACTURING CO.,LTD, JIANGMEN , https://www.jmbillion-plastics.com
