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:4/17/2015)... (PRWEB) April 17, 2015 With Dr. ... Care has spent the last four years providing ... performing procedures ranging from general cleanings to dental implants ... grand opening at their new office in North Charlotte. ... services as their Concord office, including denture fittings, cosmetic ...
(Date:4/17/2015)... released a new blog post explaining the dangers of sleeping ... rates . , Falling asleep at the wheel can ... impact on auto insurance prices. The premiums will go up ... newly released blog post talks more about drowsiness at the ... is now possible to find low cost car insurance plans ...
(Date:4/17/2015)... Mario Badescu Botanical Exfoliating ... facial skin with its unique combination of finely ... energizing botanicals. This cushiony gel-based formula sloughs off ... and inhibit penetration of special treatments, serums, and ... Seeds, This uncommon exfoliating ingredient is an ecologically ...
(Date:4/17/2015)... Wholelifelifeinsurance.org has released a new ... life insurance policies . , Whole life insurance ... for their families at the same time. Whole life ... can be customized to it the client’s needs. ... clients take some appropriate steps.Comparing life insurance quotes is ...
(Date:4/17/2015)... 17, 2015 Verndale, a Global Experience ... once again been chosen as a Boston Business Journal ... company in the region. The BBJ’s Pacesetters represents privately ... 2011 through 2014. This is the eighth consecutive year ... that Verndale has been honored with this award. , ...
Breaking Medicine News(10 mins):Health News:Accidents Caused By Sleeping at The Wheel Can Increase Auto Insurance Costs 2Health News:Mario Badescu Skin Care Launches Botanical Exfoliating Scrub 2Health News:Whole Life Insurance Policies At Affordable Prices By Comparing Quotes 2Health News:Verndale Honored as 2015 Boston Business Journal Pacesetter, Named 46th Fastest Growing Private Company 2
(Date:4/17/2015)... ASSESS shows   plasma circulating tumour DNA (ctDNA) ... tumour biopsy   IGNITE supports value of ... AstraZeneca today presented results from two key studies ... for epidermal growth factor receptor (EGFR) mutation status in newly ... clinical practice. [ 1 ] , ...
(Date:4/17/2015)... , Apr. 17, 2015 Research and Markets ... of the "Mammography Equipment - Global Strategic Business ... report analyzes the worldwide markets for Mammography Equipment in ... Equipment, and Digital Mammography Equipment. The report provides separate ... , Japan , Europe ...
(Date:4/17/2015)... Steven Rash , the CEO of Algae International Group, ... Seed & Oil Company, presented the Company,s latest developments ... York City.  Mr. Rash,s presentation featured the Company,s Product ... Company has recently announced the Dube Hemp Energy ... the EpiVape , and Hempster Clothing .  ...
Breaking Medicine Technology:"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 2"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 3"Real World" Data Support Use of Blood Test for EGFR Mutation in Advanced NSCLC 4Mammography Equipment (Analog & Digital) Market 2015-2020 - Global Strategic Business Report: Breast Imaging Screening Programs Push Sales 2American Seed & Oil Company Benchmarks its Consumer Product Development Strategy Against Proctor & Gamble 2American Seed & Oil Company Benchmarks its Consumer Product Development Strategy Against Proctor & Gamble 3
Cached News: