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:5/23/2015)... Janesville, WI (PRWEB) May 23, 2015 ... Mercy Acceleration at the Sports Medicine and Rehabilitation Center, ... running clinic program, Mondays, June 1-July 20, 5:30-6:30 pm. ... MS, USAT coach, and Laurie Finke, RN, BSN, who ... flexibility exercises, education on nutrition, running mechanics and show ...
(Date:5/22/2015)... (PRWEB) May 22, 2015 Pioneer Millworks, ... at the forefront of designing with reclaimed wood, introducing ... in Los Angeles, California. Their newest offerings, Vat 35, ... much-anticipated surface and color to America's largest design event. ... exhibit at each show, anxious to see and feel ...
(Date:5/22/2015)... May 22, 2015 Hundreds of ... behalf of individuals who allegedly experienced serious internal ... continue to move forward in the U.S. District ... Pretrial Order dated May 4, 2015, the Court ... and electronically stored information. Among other things, the ...
(Date:5/22/2015)... Commack, Long Island, NY (PRWEB) May 22, 2015 ... Spa announces that June 17, 2015, the Annual ... will take place. Since 2007, Hands On HCMT offers drastically ... the massage therapists and estheticians have enough sessions, through what ... summer. And, it is wonderful for the community as well. ...
(Date:5/22/2015)... Coordinating care for people with complex, ... have not been reimbursed or rewarded for care ... has paved the way by offering reimbursement for ... of Oculus Health , an innovative care ... platform will now be able to easily engage ...
Breaking Medicine News(10 mins):Health News:Pioneer Millworks to Reveal New Design Trends with Reclaimed Wood at Dwell on Design in LA 2Health News:Pioneer Millworks to Reveal New Design Trends with Reclaimed Wood at Dwell on Design in LA 3Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 2Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 3Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 4Health News:Hands On HealthCare Massage Therapy & Wellness Day Spa Announces Their Eighth Annual One Day Sale on Gift Certificates Will Take Place on June 17, 2015 2Health News:Hands On HealthCare Massage Therapy & Wellness Day Spa Announces Their Eighth Annual One Day Sale on Gift Certificates Will Take Place on June 17, 2015 3Health News:Oculus Health Care Coordination Platform Officially Launched 2Health News:Oculus Health Care Coordination Platform Officially Launched 3Health News:Oculus Health Care Coordination Platform Officially Launched 4
(Date:5/22/2015)... 22, 2015 /CNW/ - More than fifty years ago, Thalidomide ... sickness in expectant mothers. Tragically, Thalidomide caused serious and permanent ... Support has been provided to survivors over the ... Canada in 1991 and settlements from drug ... legal obligation to provide support, we have a clear moral ...
(Date:5/22/2015)... YORK , May 22, 2015 ... of the $13 billion global cardiac rhythm management ... Information.  Kalorama found that Medtronic, St. Jude Medical, ... command 80% of this market segment. The healthcare ... Device Markets , uses 2015 as a base ...
(Date:5/22/2015)... May 22, 2015  RegeneRx Biopharmaceuticals, Inc. (OTCQB: ... peer-reviewed publication of the results of the Company,s ... preservative-free eye drops) for the treatment of dry ... (CAE ® ) model.  The exploratory study was ... were previously disseminated by the Company in a ...
Breaking Medicine Technology:Statement from Minister Ambrose on Thalidomide 2Statement from Minister Ambrose on Thalidomide 3Kalorama: Top Companies Dominate Cardiac Defibrillator Market 2Kalorama: Top Companies Dominate Cardiac Defibrillator Market 3Kalorama: Top Companies Dominate Cardiac Defibrillator Market 4Complete Data from RegeneRx Phase II Dry Eye Trial Published in Current Issue of Clinical Ophthalmology 2Complete Data from RegeneRx Phase II Dry Eye Trial Published in Current Issue of Clinical Ophthalmology 3Complete Data from RegeneRx Phase II Dry Eye Trial Published in Current Issue of Clinical Ophthalmology 4
Cached News: