Researchers develop 3D printed ingestible pill
Represents the first non-invasive diagnostic tool capable of providing a profile of microbiome populations throughout the entire GI tract.
A research team led by Tufts University engineers has developed a 3D printed ingestible pill that samples bacteria found in the gut - known as the microbiome - as it passes through the gastrointestinal tract (GI). The ability to profile bacterial species inhabiting the gut could have important implications for the understanding of conditions that affect and are affected by the intestinal microbiome, according to the researchers.
The 3D printed pill described in the journal Advanced Intelligent Systems represents the first non-invasive diagnostic tool capable of providing a profile of microbiome populations throughout the entire GI tract, according to the researchers. Current methods of sampling the microbiome involve primarily the analysis of fecal DNA and metabolites, but that approach provides little information of the environment upstream of the distal colon, where bacterial species can vary significantly.
The pill has been studied extensively in vitro and in vivo and found to provide accurate identification of bacterial populations and their relative abundance, the paper says. It has been tested in pigs and primates, yet clinical trials will be needed to determine if the pill can be used routinely in humans for clinical care.
More than 1,000 species of bacteria inhabit the healthy gut. The vast majority of these bacteria have a beneficial, supportive role in digestion and protection against disease. When the natural balance of the microbiome is disturbed, a condition called “dysbiosis” occurs, which can be associated with inflammation, susceptibility to infections, and even the exacerbation of other diseases such as cancer. Research is increasingly unveiling specific microbiome metabolites that have beneficial or protective effects against disease.
“We are learning quite a lot about the role of gut microbiome in health and disease. However, we know very little about its biogeography,” said Sameer Sonkusale, professor of electrical and computer engineering at Tufts University’s School of Engineering and corresponding author of the study. “The pill will improve our understanding of the role of spatial distribution in the microbiome profile to advance novel treatments and therapies for a number of diseases and conditions.”
The pill is more sophisticated than just a sponge. It is manufactured in a 3D printer with microfluidic channels that can sample different stages of the GI tract. The surface of the pill is covered with a pH-sensitive coating so that it does not absorb any samples until it enters the small intestine (bypassing the stomach) where the coating dissolves. A semi-permeable membrane separates two chambers in the pill – one containing helical channels that take up the bacteria and the other containing a calcium salt-filled chamber. The salt chamber helps create an osmotic flow across the membrane which pulls the bacteria into the helical channels. A small magnet in the pill enables one to hold it at certain locations in the gut for more spatially targeted sampling using a magnet outside the body. A fluorescent dye in the salt chamber helps locate the pill after it exits the GI tract.
“The design of this device makes it incredibly easy to use, posing little risk to the subject, yet providing so much information,” said Giovanni Widmer, professor of infectious disease and global health at Cummings School of Veterinary Medicine at Tufts University, and co-author of the study responsible for testing the pill's effectiveness in animals and for high throughput sequencing the microbiome samples.
The researchers see this technology as bridging an important gap in understanding the complexity of the ecosystem of the gut. “We have advanced technologies to analyze bacterial populations using DNA sequencing, but until now have not had a way to sample bacteria throughout the GI tract in a way that is not invasive,” said Hojatollah Rezaei Nejad, a post-doctoral fellow studying novel applications of 3D printing in Sonkusale’s laboratory at Tufts and lead author of the study. “By sampling non-invasively, this pill could help us better identify and understand the role of different intestinal bacterial species in health and disease.”
Related News
-
News Patients vs Pharma – who will the Inflation Reduction Act affect the most?
The Inflation Reduction Act brought in by the Biden administration in 2022 aims to give better and more equitable access to healthcare in the USA. However, pharma companies are now concerned about the other potential costs of such legislation. -
News CPHI Podcast Series: What does the changing US Pharma market mean for industry and patients alike?
In this week's episode of the CPHI Podcast Series Lucy Chard, Digital Editor for CPHI Online is joined by James Manser to discuss the political and market changes in the US pharma field. -
News CPHI Barcelona Annual Report illuminates industry trends for 2024
The CPHI Annual Survey comes into it’s 7th year to report on the predicted trends for 2024. Over 250 pharma executives were asked 35 questions, with their answers informing the industry landscape for the next year, spanning all major pharma marke... -
News Which 10 drugs are open to price negotiation with Medicare in the USA?
The Centres for Medicare & Medicaid Services, under the Biden administration in the USA, has released a list of the 10 drugs that will be open to price negotiations as part of the new legislation under the Inflation Reduction Act (IRA). -
News EU Medical Devices Regulation causes unintended disappearances of medical devices for children, doctors state
Doctor groups and associations have appealed to the EU to correct the EU Medical Devices Regulation law that may cause unintended shortages of essential drug and medical devices for children and rare disease patients. -
News 10 Major Drug Approvals So Far in 2023
Last year, 37 novel drugs were approved by the FDA, this was a high number for such a category, and covered many fields including oncology, demonstrating how promising further research is, and how it is only continuing to build. To date, there are alre... -
News Detecting Alzheimer's disease with a simple lateral flow test
A novel rapid diagnostic test for early-stage Alzheimer's disease has been developed using a biomarker binder from Aptamer Group along with technology from Neuro-Bio, the neurodegenerative disease experts. -
News CPHI Podcast Series: outsourcing and manufacturing trends
Listen to the CPHI Podcast Series this June to hear Gil Roth of the PBOA speak with Digital Editor Lucy Chard about the biggest trends and topics to watch in pharma outsourcing and manufacturing at the minute.
Position your company at the heart of the global Pharma industry with a CPHI Online membership
-
Your products and solutions visible to thousands of visitors within the largest Pharma marketplace
-
Generate high-quality, engaged leads for your business, all year round
-
Promote your business as the industry’s thought-leader by hosting your reports, brochures and videos within your profile
-
Your company’s profile boosted at all participating CPHI events
-
An easy-to-use platform with a detailed dashboard showing your leads and performance