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High-tech gas sensing capsules for better gut health

Date:
March 12, 2015
Source:
RMIT University
Summary:
High-tech gas sensing capsules that can send data from inside the gut direct to a mobile phone have been developed by scientists, opening new possibilities for diagnosis, treatment and health analysis.
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Researchers have developed high-tech gas sensing capsules that can send data from inside the gut direct to a mobile phone, opening new possibilities for diagnosis, treatment and health analysis.

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Intestinal gases have been linked to colon cancer, irritable bowel syndrome and inflammatory bowel disease, and could potentially be used as key biomarkers for assessing overall health.

The new technology -- developed by researchers from RMIT University and Monash University in Melbourne, Australia -- measures the concentration of selected intestinal gases through a swallowable capsule with a built-in gas sensor, microprocessor and wireless high-frequency transmitter.

Lead investigator, RMIT's Professor Kourosh Kalantar-zadeh, said current non-invasive methods of measuring intestinal gas -- such as breath testing -- were unreliable.

"We know gut microorganisms produce gases as a by-product of their metabolism, but we understand very little about how that affects our health," he said.

"Being able to accurately measure intestinal gases could accelerate our knowledge about how specific gut microorganisms contribute to gastrointestinal disorders and food intake efficiency, enabling the development of new diagnostic techniques and treatments.

"But these high-tech capsules could also help people work out precisely how particular foods affect their guts.

"With nearly half of Australia's population complaining of digestive problems in any 12 month period, this technology could be the simple tool we need to methodically tailor our diets to our individual bodies and improve our digestive health."

Animal trials have demonstrated the effectiveness and safety of the capsules, which transmit data as they move through the gut to a handheld device such as a mobile phone, before passing out of the body.

The researchers from RMIT's MicroNano Research Facility and Monash have detailed the technology in an article published in Trends in Biotechnology on 12 March, which also describes a second novel method of analysing intestinal gases, using "in vitro fermentation."

"The capsule has a strong Australian origin," Professor Kalantar-zadeh said.

"Australia's CSIRO has developed different gas capsule technologies for ruminants -- animals such as cows and sheep that can acquire nutrients from plant-based food by fermenting it in a specialised stomach prior to digestion ­- but the RMIT-Monash research is focused on capsules suitable for humans."

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Story Source:

Materials provided by RMIT University. Note: Content may be edited for style and length.


Journal Reference:

  1. Kourosh Kalantar-zadeh et al. Human intestinal gas measurement systems: in vitro fermentation and gas capsules. Trends in Biotechnology, March 2015 DOI: 10.1016/j.tibtech.2015.02.002

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RMIT University. "High-tech gas sensing capsules for better gut health." ScienceDaily. ScienceDaily, 12 March 2015. <www.sciencedaily.com/releases/2015/03/150312130758.htm>.
RMIT University. (2015, March 12). High-tech gas sensing capsules for better gut health. ScienceDaily. Retrieved October 20, 2022 from www.sciencedaily.com/releases/2015/03/150312130758.htm
RMIT University. "High-tech gas sensing capsules for better gut health." ScienceDaily. www.sciencedaily.com/releases/2015/03/150312130758.htm (accessed October 20, 2022).

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