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:10/25/2014)... 2014 Mesothelioma researchers are reporting extended ... pemetrexed (Alimta), after his combination drug therapy became too ... , just posted on the Surviving Mesothelioma website. ... Center in Japan suggests that “maintenance therapy” with pemetrexed ... who cannot tolerate higher doses of cisplatin. , ...
(Date:10/25/2014)... FRIDAY, Oct. 24, 2014 (HealthDay News) -- Researchers ... say their findings are cause for concern. ... that are raised for human consumption contribute to ... health, according to background information from the study. ... germs sicken about 2 million people and kill ...
(Date:10/22/2014)... At a time when the national concussion conversation ... all levels, the UPMC Sports Medicine Concussion Program ... two powerful messages are lost: Concussions can be treated, ... recoveries every day. , In striving to shift the ... UPMC and the Concussion Program are unveiling the online ...
(Date:10/22/2014)... October 22, 2014 For Dr. Iris Hunter, ... money; it’s an extension of her life’s mission. Her extensive ... as the owner of FirstLight HomeCare, make it clear that ... to me that my work makes a difference in the ... entrepreneurial spirit, so after much research, I felt ready to ...
(Date:10/22/2014)... (PRWEB) October 22, 2014 Hay House is ... Beyond Addiction and Upgrade Your Life (Paperback; $10.82) written by ... Yoga & Recovery. This book is meant to help ... a life of recovery. , Recovery 2.0 is not ... Steps; Recovery 2.0 is a guide for what comes next. ...
Breaking Medicine News(10 mins):Health News:New Report Illustrates Extended Mesothelioma Survival with “Maintenance Therapy”, According to Surviving Mesothelioma 2Health News:Researchers Say Antibiotics in Fish a Health Concern 2Health News:University of Pittsburgh Medical Center Launches Initiative to Emphasize Concussions Are Treatable 2Health News:University of Pittsburgh Medical Center Launches Initiative to Emphasize Concussions Are Treatable 3Health News:University of Pittsburgh Medical Center Launches Initiative to Emphasize Concussions Are Treatable 4Health News:Dr. Iris Hunter to Host Grand Opening of FirstLight HomeCare Tomorrow 2Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 2Health News:Hay House Announces The Official Release of Recovery 2.0: Move Beyond Addiction and Upgrade Your Life 3
(Date:10/25/2014)... , Oct. 24, 2014  According to a survey ... MOSAIQ® Oncology Information System earned the number one ... KLAS, "Oncology 2014: Integration is Key" report. The survey ... has improved their MOSAIQ interfaces to take a commanding ... 100, 93 percent of customers said they would buy ...
(Date:10/25/2014)... , Oct. 24, 2014 Research ... "Dental Equipment Market Current Trends, Opportunities - Global Forecast ... In this report, the global dental equipment market ... The dental systems and equipment market is expected to ... market during the forecast period (2014 to 2019). This ...
(Date:10/25/2014)... , Oct. 24, 2014 Advanced Photonix ® ... September 26, 2014) financial results on Monday, November 10, 2014. ... after the close of the market and the Company will ... at 4:30 p.m. EDT on the same day. ... (CEO and Director), Rob Risser (COO and Director), ...
Breaking Medicine Technology:Elekta's MOSAIQ oncology information system ranks number one in KLAS Oncology 2014 report 2Elekta's MOSAIQ oncology information system ranks number one in KLAS Oncology 2014 report 3Dental Equipment Market Current Trends, Opportunities - Global Forecast to 2019 2Dental Equipment Market Current Trends, Opportunities - Global Forecast to 2019 3Advanced Photonix to Webcast Fiscal 2015 Second Quarter Earnings 2
Cached News: