perfluorocarbon

(redirected from Perfluorocarbons)
Also found in: Dictionary, Thesaurus, Encyclopedia.

perfluorocarbon

 [per-floor´o-kahr″bon]
any of various substances chemically related to a hydrocarbons but with the hydrogen atoms replaced by fluorine atoms. In gaseous form they cause environmental damage by collecting in the upper atmosphere; in liquid form, some are used in partial liquid ventilation.

perfluorocarbon

[pərfloo͡r′ōkär′bən]
any of a group of chemicals with limited capacity for transporting oxygen through the circulatory system. They can be used for certain blood substitute purposes, regardless of the blood type of the patient. They are stable at room temperatures, have a pH of 7.4, and are free of infectious pathogens. Also called artificial blood or blood substitute.

perfluorocarbon

(pĕr-floor″-ă-kahr′ bŭn, -floo″ă-rō-)
A class of solvent molecules that can carry nonpolar gases, such as oxygen, nitrogen, and carbon dioxide. They have been used experimentally in transfusion medicine and in some ophthalmic surgeries. Perfluorocarbons are also used as blood gas controls when prepared in buffered solutions equilibrated with CO2 and O2.
References in periodicals archive ?
The first generation of perfluorocarbons used as blood substitutes in mice during the 1960s had a major drawback -- poorly eliminated by the organism, they accumulated in the tissues of the body.
Navy plans to initiate preclinical studies to investigate the potential use of OBI's proprietary perfluorocarbon emulsion, Oxycyte([R]), as an intravenously delivered adjunctive treatment for complex infected wounds and related injuries.
To make vaccines without water, the researchers prepared microscopic spheres of sugar loaded with tetanus vaccine and suspended them in perfluorocarbons.
Perfluorocarbons may also provide an alternative for patients who decline any natural blood products for religious reasons.
Oxycyte is Synthetic Blood's proprietary perfluorocarbon (PFC) therapeutic oxygen carrier and blood substitute.
The data must show emissions from human sources of six greenhouse gases covered by the protocol: carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFC), perfluorocarbons (PFC) and sulphur hexafluoride (SF6).
Austria and Denmark have been given two months to reply to a European Commission question concerning extended bans for hydrofluorocarbons (HFC) and perfluorocarbons (PFC).
The United States succeeded in adding limits on three more--hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride.
F2 is primarily active in the manufacture of perfluorocarbons (part of a chemical group commonly described as inert fluids).
Pointing out that several gases currently being used as ozone-safe replacements for CFCs - notably hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs) - contribute to global warming and are therefore targeted for reduction under the Kyoto Protocol, delegates agreed on a process for coordinating the work of the scientific, technology and economic assessment panels on ozone with similar panels and committees linked to the 1992 Framework Convention on Climate Change.
But lately I haven't heard anything--anything-- about using perfluorocarbons as a circulating blood substitute.