Surface properties and sub-surface aggregate assimilation of rhamnolipid surfactants in different aqueous systems

Z Raza, Z Khalid, M Khan, Ibrahim Banat, et al et al

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Tensioactive properties of rhamnolipids produced by a Pseudomonas aeruginosa strain were investigated in the presence or absence of Sr(2+) or Pb(2+). Surface and interfacial properties, and aggregate forming properties and morphologies were studied by various techniques including scanning electron microscopy. When the pH of a rhamnolipid aqueous solution (40 mg/l) was increased from 5 to 8, irregular vesicles gradually took the shape of oligo-vesicles, then regular vesicles and finally smaller spherical vesicles. Addition of metal ions controlled the aggregates' morphology and stability, and influenced the surface and interfacial behavior of rhamnolipid solutions.
LanguageEnglish
Pages811-816
JournalBiotechnology Letters
Volume32
Issue number6
Publication statusPublished - Jun 2010

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Surface-Active Agents
Surface properties
Metal ions
Scanning electron microscopy
rhamnolipid

Cite this

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abstract = "Tensioactive properties of rhamnolipids produced by a Pseudomonas aeruginosa strain were investigated in the presence or absence of Sr(2+) or Pb(2+). Surface and interfacial properties, and aggregate forming properties and morphologies were studied by various techniques including scanning electron microscopy. When the pH of a rhamnolipid aqueous solution (40 mg/l) was increased from 5 to 8, irregular vesicles gradually took the shape of oligo-vesicles, then regular vesicles and finally smaller spherical vesicles. Addition of metal ions controlled the aggregates' morphology and stability, and influenced the surface and interfacial behavior of rhamnolipid solutions.",
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Surface properties and sub-surface aggregate assimilation of rhamnolipid surfactants in different aqueous systems. / Raza, Z; Khalid, Z; Khan, M; Banat, Ibrahim; et al, et al.

In: Biotechnology Letters, Vol. 32, No. 6, 06.2010, p. 811-816.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Surface properties and sub-surface aggregate assimilation of rhamnolipid surfactants in different aqueous systems

AU - Raza, Z

AU - Khalid, Z

AU - Khan, M

AU - Banat, Ibrahim

AU - et al, et al

PY - 2010/6

Y1 - 2010/6

N2 - Tensioactive properties of rhamnolipids produced by a Pseudomonas aeruginosa strain were investigated in the presence or absence of Sr(2+) or Pb(2+). Surface and interfacial properties, and aggregate forming properties and morphologies were studied by various techniques including scanning electron microscopy. When the pH of a rhamnolipid aqueous solution (40 mg/l) was increased from 5 to 8, irregular vesicles gradually took the shape of oligo-vesicles, then regular vesicles and finally smaller spherical vesicles. Addition of metal ions controlled the aggregates' morphology and stability, and influenced the surface and interfacial behavior of rhamnolipid solutions.

AB - Tensioactive properties of rhamnolipids produced by a Pseudomonas aeruginosa strain were investigated in the presence or absence of Sr(2+) or Pb(2+). Surface and interfacial properties, and aggregate forming properties and morphologies were studied by various techniques including scanning electron microscopy. When the pH of a rhamnolipid aqueous solution (40 mg/l) was increased from 5 to 8, irregular vesicles gradually took the shape of oligo-vesicles, then regular vesicles and finally smaller spherical vesicles. Addition of metal ions controlled the aggregates' morphology and stability, and influenced the surface and interfacial behavior of rhamnolipid solutions.

M3 - Article

VL - 32

SP - 811

EP - 816

JO - Biotechnology Letters

T2 - Biotechnology Letters

JF - Biotechnology Letters

SN - 0141-5492

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