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:
TAG: Study Carbon dioxide may find new use producing medical implants

(Date:7/28/2014)... (PRWEB) July 28, 2014 According to the ... this is a comprehensive fitness guide that teaches men how ... week. , Vkool reveals in its review that inside ... Ways to gain the maximum muscle ... to build muscle and avoid fat gain , ...
(Date:7/28/2014)... (PRWEB) July 28, 2014 Footwear etc. ... shoes styles from Mephisto. With shoes, sandals, and boots ... Mephisto products continually provide handmade comfort shoes ... and women have come to rely on the superb ... , Mephisto shoes and sandals contain the highest quality ...
(Date:7/28/2014)... Wa (PRWEB) July 28, 2014 According to ... this is a comprehensive guide that will help people get ... to readers all the necessary information about heartburn and acid ... the truth about heartburn , and risk factors for reflux ... book will help people get rid of symptoms of reflux ...
(Date:7/28/2014)... 2014 Mitul R. Patel, DDS and ... the MGE Management Experts Benefit Dinner May 30, in ... the Dentists to raise funds for the Improving Youth ... Clubs and Youth Programs across America. The funds raised ... books and audio books to directly tackle illiteracy and ...
(Date:7/28/2014)... Dr. Alan Xenakis, MD announced today the release of ... new book, DOC X MD Funny Feelings translates ... style with humor and medical accuracy. The book is creatively ... answers to those age-old questions that most folks are embarrassed ... do mosquitoes bite some and not others? Why do folks ...
Breaking Medicine News(10 mins):Health News:Greek God Muscle Building Program Review Exposes Greg O’Gallagher's Muscle Building Guide for Men – Vkool.com 2Health News:Greek God Muscle Building Program Review Exposes Greg O’Gallagher's Muscle Building Guide for Men – Vkool.com 3Health News:Footwear etc. Highlights Phenomenal Models of Mephisto Shoes 2Health News:Footwear etc. Highlights Phenomenal Models of Mephisto Shoes 3Health News:Heartburn No More Pdf Review Exposes Jeff Martin's Guide For Treating Heartburn – Vkool.com 2Health News:Heartburn No More Pdf Review Exposes Jeff Martin's Guide For Treating Heartburn – Vkool.com 3Health News:Mitul R. Patel, DDS Successfully Attacks a Major Source of Economic Destruction in the Battle Against Illiteracy and Poverty 2Health News:Mitul R. Patel, DDS Successfully Attacks a Major Source of Economic Destruction in the Battle Against Illiteracy and Poverty 3Health News:New Book by Alan P. Xenakis, MD Reveals Mind and Body Mysteries 2
(Date:7/25/2014)... 2014  CVS Caremark Corporation (NYSE: CVS ... August 5, 2014, at 8:30 a.m. (EDT) with analysts ... results. An audio webcast of the conference ... portion of the CVS Caremark website for all interested ... This webcast will be archived and available on the ...
(Date:7/25/2014)...  Acsis Inc., the market leader for supply ... recently posted an article, "Future of Running ... needs for companies, extended supply chain, and explains ... no longer work today.  The article explains how ... mobile technology, machine to machine (M2M) connectivity, and ...
(Date:7/25/2014)... 2014 Research and Markets has ... Devices Market 2014-2018" report to their offering. ... Ophthalmic Diagnostic Device An ophthalmic diagnostic ... defect or deficiency in the human visual pathway. Ophthalmic ... as presbyopia, cataracts, glaucoma, retinal disorders, conjunctivitis, and dry ...
Breaking Medicine Technology:Acsis Addresses Questions on the Modern Supply Chain 2Global Ophthalmic Diagnostic Devices Market 2014-2018: Key Vendors are Alcon, Carl Zeiss, Haag-Streit and Topcon 2
Cached News: