المستودع الأكاديمي جامعة المدينة

Monitoring Protein Fouling on Polymeric Membranes Using Ultrasonic Frequency-Domain Reflectometry

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dc.creator Elmira Kujundzic
dc.creator Alan R. Greenberg
dc.creator Robin Fong
dc.creator Mark Hernandez
dc.date 2011
dc.date.accessioned 2013-05-30T12:35:19Z
dc.date.available 2013-05-30T12:35:19Z
dc.date.issued 2013-05-30
dc.identifier http://www.mdpi.com/2077-0375/1/3/195/
dc.identifier http://www.doaj.org/doaj?func=openurl&genre=article&issn=20770375&date=2011&volume=1&issue=3&spage=195
dc.identifier.uri http://koha.mediu.edu.my:8181/jspui/handle/123456789/5293
dc.description Novel signal-processing protocols were used to extend the in situ sensitivity of ultrasonic frequency-domain reflectometry (UFDR) for real-time monitoring of microfiltration (MF) membrane fouling during protein purification. Different commercial membrane materials, with a nominal pore size of 0.2 µm, were challenged using bovine serum albumin (BSA) and amylase as model proteins. Fouling induced by these proteins was observed in flat-sheet membrane filtration cells operating in a laminar cross-flow regime. The detection of membrane-associated proteins using UFDR was determined by applying rigorous statistical methodology to reflection spectra of ultrasonic signals obtained during membrane fouling. Data suggest that the total power reflected from membrane surfaces changes in response to protein fouling at concentrations as low as 14 μg/cm2, and results indicate that ultrasonic spectra can be leveraged to detect and monitor protein fouling on commercial MF membranes.
dc.language eng
dc.publisher Molecular Diversity Preservation International
dc.source Membranes
dc.subject proteins
dc.subject microfiltration
dc.subject fouling
dc.subject ultrasonic frequency-domain reflectometry
dc.title Monitoring Protein Fouling on Polymeric Membranes Using Ultrasonic Frequency-Domain Reflectometry


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