HOME >> MEDICINE >> NEWS
Study: Carbon dioxide may find new use in producing medical implants

COLUMBUS, Ohio Carbon dioxide, an environmentally friendly solvent for dyeing and dry cleaning, may become a valuable new tool for making medical implants, according to a study at Ohio State University.

Engineers here used compressed carbon dioxide (CO2) to push chemicals into a plastic that is often used as a bone replacement. With further development, the technology could be used in a wide range of plastics that release medicines -- from antibiotics to anti-tumor agents - into the body.

The high-pressure, high-temperature CO2 is neither gas nor liquid, but is known as a "supercritical fluid," explained David Tomasko, associate professor of chemical engineering at Ohio State. Supercritical fluids are often used in industry because they penetrate materials like a gas but can dissolve some substances -- such as grease -- and other chemicals like a liquid.

"Though supercritical CO2 has long been developed as a means of extracting molecules, this work shows that it can be used in the opposite way," said David Tomasko, associate professor of chemical engineering at Ohio State.

The study also revealed that engineers can control the pressure of the CO2 to alter the internal structure of the plastic and create voids that may enable the material to hold larger quantities of medicine than might normally be possible.

Tomasko and John Lannutti, associate professor of materials science and engineering, their graduate students Taryn Sproule and Hongbo Li, and undergraduate student J. Alex Lee, published their results in a recent issue of the Journal of Supercritical Fluids.

Supercritical CO2 is gaining popularity as an environmentally friendly dry-cleaning agent and textile-dyeing solvent, but it is the fluid's ability to sterilize surfaces that could prove key for making medically active implants. Currently, implants are sterilized with heat, radiation, or chemicals that can make embedded medicines less effective, Tomasko explai
'"/>

Contact: David Tomasko
Tomasko.1@osu.edu
614-292-4249
Ohio State University
23-Mar-2004


Page: 1 2 3

Related medicine news :

1. Study: Two brain systems regulate how we call for help
2. Study: Eye contact triggers threat signals in autistic childrens brains
3. Study: Young adults can be motivated to eat fruits, veggies
4. Study: Physical activity in middle age cuts risk of early death
5. Study: Brain battles itself over short-term rewards, long-term goals
6. Study: Dementia often undiagnosed in clinical settings
7. Study: Too few doctors ask teens about smoking
8. Study: Low-carb diet more effective than low-fat diet
9. Study: Many men take dietary supplements to prevent prostate cancer
10. Study: Height loss screen ultimately could reduce hip fractures
11. Study: New neurons can get out of spinal cord

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:1/23/2020)... (PRWEB) , ... January 23, 2020 , ... ... IRF Executive Committee and the IRF Board of Trustees. Representing all segments of ... foundation in meeting its mission of conducting research and providing education highlighting the ...
(Date:1/23/2020)... ... January 23, 2020 , ... NowRx , the ... Orange County today with the grand opening of its state-of-the-art, 4,500 square foot, ... time of a traditional pharmacy. NowRx uses an eco-friendly fleet of delivery ...
(Date:1/22/2020)... (PRWEB) , ... January 22, ... ... that provides hearing, speech, and education services, recently appointed Ilana Glazer as ... communications, and outreach initiatives. Specifically, Ilana directs donor relations, grants administration, external ...
(Date:1/22/2020)... ... January 22, 2020 , ... Dr. Mario ... band can be for reducing food intake, enabling sustainable weight loss and improving ... while bariatric surgery may be a great tool for achieving significant weight loss, ...
(Date:1/12/2020)... ... January 11, 2020 , ... The co-founder and CEO of ... with the annual JP Morgan Healthcare Conference. On Sunday, January 12, Sujuan Ba, ... technology company investors and advisers at the San Francisco office of international law ...
Breaking Medicine News(10 mins):
(Date:1/24/2020)... ... January 24, 2020 , ... The American College of ... a systematic reform of the health care system. Recently, practicing internist and President of ... of Governmental Affairs and Public Policy at ACP, teamed with YourUpdateTV to discuss how ...
(Date:1/23/2020)... ... January 23, 2020 , ... ... assisted living community, has received a deficiency-free survey in 2019 as administered ... receive a deficiency-free survey from the State,” said Glen Cummins Regional Director of ...
(Date:1/23/2020)... ... January 23, 2020 , ... As Sarasota’s older population surges, ... want to stay in their own homes, according to The American Association of Retired ... care . Now, affluent seniors seeking truly professional caregivers have a new option -- ...
Breaking Medicine Technology:
Cached News: