Journal article

Recovery of Sevoflurane Anesthetic Gas Using an Organosilica Membrane in Conjunction with a Scavenging System

Liang Liu, Forbes McGain, Sandra E Kentish

ENVIRONMENTAL SCIENCE & TECHNOLOGY | AMER CHEMICAL SOC | Published : 2021

Abstract

Approximately 95% of the anesthetic gas administered to a patient is exhaled and ultimately released into the atmosphere. Most anesthetic gases have high global warming potential and so this approach adds significantly to the global greenhouse gas footprint. In this work, we develop a feasible means to capture such an anesthetic gas (sevoflurane) before it is released to the hospital scavenging system so that it is retained within the anesthetic circuit. Sevoflurane is retained using a microporous 1,2-bis(triethoxysilyl)ethane (BTESE) membrane prepared by a sol-gel method. The use of a ceramic membrane facilitates sanitization at high temperatures. A rapid thermal processing (RTP) technique ..

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Grants

Awarded by Australian and New Zealand College of Anaesthetists (ANZCA)


Funding Acknowledgements

The authors acknowledge the financial support of the Australian and New Zealand College of Anaesthetists (ANZCA grant no. 18/011) and from the Western Health (Melbourne) Foundation. Fruitful discussions with Associate Professor Brendan Abrahams from the University of Melbourne are also gratefully acknowledged.