Pitch component interactions with model surfaces by surface plasmon resonance

Gerard Murray, Karen Stack, Douglas McLean, Wei Shen, Gil Garnier

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The affinity of pitch components for carboxylated dextran (CD) surfaces is studied by optical microscopy and surface plasmon resonance (SPR). CD is used as a model of the cellulose structure of pulp fibres. The dynamics of adsorption and desorption are followed in real time by SPR. The parameters investigated are temperature and pitch concentration. Particle size and shape are found to be strongly related to the pitch components in the extract and parametric considerations in the preparation process. Pitch components exhibit a very low affinity for CD at 20°C However this affinity increases as the CD surface is modified by deposited pitch components themselves. The affinity of pitch components for CD and especially for themselves drastically increases with temperature.

Original languageEnglish
Pages (from-to)343-350
Number of pages8
JournalAppita Annual Conference
Volume1
Publication statusPublished - 1 Dec 2007
Event61st Appita Annual Conference and Exhibition - Gold Coast, Australia
Duration: 6 May 20079 May 2007

Cite this

Murray, Gerard ; Stack, Karen ; McLean, Douglas ; Shen, Wei ; Garnier, Gil. / Pitch component interactions with model surfaces by surface plasmon resonance. In: Appita Annual Conference. 2007 ; Vol. 1. pp. 343-350.
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Pitch component interactions with model surfaces by surface plasmon resonance. / Murray, Gerard; Stack, Karen; McLean, Douglas; Shen, Wei; Garnier, Gil.

In: Appita Annual Conference, Vol. 1, 01.12.2007, p. 343-350.

Research output: Contribution to journalConference articleResearchpeer-review

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AU - McLean, Douglas

AU - Shen, Wei

AU - Garnier, Gil

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N2 - The affinity of pitch components for carboxylated dextran (CD) surfaces is studied by optical microscopy and surface plasmon resonance (SPR). CD is used as a model of the cellulose structure of pulp fibres. The dynamics of adsorption and desorption are followed in real time by SPR. The parameters investigated are temperature and pitch concentration. Particle size and shape are found to be strongly related to the pitch components in the extract and parametric considerations in the preparation process. Pitch components exhibit a very low affinity for CD at 20°C However this affinity increases as the CD surface is modified by deposited pitch components themselves. The affinity of pitch components for CD and especially for themselves drastically increases with temperature.

AB - The affinity of pitch components for carboxylated dextran (CD) surfaces is studied by optical microscopy and surface plasmon resonance (SPR). CD is used as a model of the cellulose structure of pulp fibres. The dynamics of adsorption and desorption are followed in real time by SPR. The parameters investigated are temperature and pitch concentration. Particle size and shape are found to be strongly related to the pitch components in the extract and parametric considerations in the preparation process. Pitch components exhibit a very low affinity for CD at 20°C However this affinity increases as the CD surface is modified by deposited pitch components themselves. The affinity of pitch components for CD and especially for themselves drastically increases with temperature.

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JF - Appita Annual Conference

SN - 1443-5454

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