W. Richard Bowen and Nidal Hilal 4

REFERENCEs 105
[52] E.A. Mansur, Y.D. Wang, Y.Y. Dai, Separation of fine particles by using colloidal gas
aphrons, Chin. J. Chem. Eng. 12 (2) (2004) 286–289.
[53] P.G. Chaphalkar, K.T. Valsaraj, D. Roy, A study of the size distribution and stability of
colloidal gas aphrons using a particle size analyzer, Separ. Sci. Technol. 28 (6) (1993)
1287–1302.
[54] P.G. Chaphalkar, K.T. Valsaraj, D. Roy, Flotation using microgas dispersions for the
removal of pentachlorophenol from aqueous-solutions, Separ. Sci. Technol. 29 (7)
(1994) 907–921.
[55] S. Ciriello, S.M. Barnett, F.J. Deluise, Removal of heavy metals from aqueous solutions
using microgas dispersions, Separ. Sci. Technol. 17 (4) (1982) 521–534.
[56] D. Roy, K.T. Valsaraj, S.A. Kottai, Separation of organic dyes from wastewater by
using colloidal gas aphrons, Separ. Sci. Technol. 27 (5) (1992) 573–588.
[57] D. Roy, K.T. Valsaraj, A. Tamayo, Comparison of soil washing using conventional surfactant
solutions and colloidal gas aphrons, Separ. Sci. Technol. 27 (12) (1992) 1555–1568.
[58] P. Jauregi, J. Varley, Colloidal gas aphrons: potential applications in biotechnology,
TIBTECH 17 (1999) 389–395.
[59] S.V. Save, V.G. Pangarkar, Harvesting of Saccharomyces cerevisiae using colloidal gas
aphrons, J. Chem Technol. Biotechnol. 62 (2) (1995) 192–199.
[60] E. Fuda, D. Bhatia, D.L. Pyle, P. Jauregi, Selective separation of beta-lactoglobulin from
sweet whey using CGAs generated from the cationic surfactant CTAB, Biotechnol.
Bioeng. 90 (5) (2005) 532–542.
[61] S.V. Save, V.G. Pangarkar, S.V. Kumar, Intensification of mass-transfer in aqueous
2-phase systems, Biotechnol. Bioeng. 41 (1) (1993) 72–78.
[62] E. Donaldson, J. Cuy, P. Nair, B. Ratner, Poly(vinyl alcohol)-amino acid hydrogels
fabricated into tissue engineering scaffolds by colloidal gas aphron technology,
Macromol. Symp. 227 (2005) 115–122.
[63] P. Jauregi, G.R. Mitchell, J. Varley, Colloidal gas aphrons (CGA): dispersion and structural
features, AICHE J. 46 (1) (2000) 24–36.
[64] L.-C. Xu, V. Vadillo-Rodriguez, B.E. Logan, Residence time, loading force, pH, and
ionic strength affect adhesion forces between colloids and biopolymer coated surfaces,
Langmuir 21 (2005) 7491–7500.
[65] D. Filip, V.I. Uricanu, M.H.G. Duits, W.G.M. Agterof, J. Mellema, Influence of bulk
elasticity and interfacial tension on the deformation of gelled water-in-oil emulsion
droplets: an AFM study, Langmuir 21 (2005) 115–126.
[66] A.V. Nguyen, G.M. Evans, Axisymmetric approach of a solid sphere toward a nondeformable
planar slip interface in the normal stagnation flow – development of
global rational approximations for resistance coefficients, Int. J. Multiphas. Flow 28
(2002) 1369–1380.
[67] F. Benmouna, D. Johanssman, Hydrodynamic interaction of AFM cantilevers with solid
walls: an investigation based on AFM noise analysis, Eur. Phys. J. E 9 (5) (2002) 435–441.
[68] F. Benmouna, D. Johanssman, Hydrodynamics of particle–wall interaction in colloidal
probe experiments: comparison of vertical and lateral motion, J. Phys. Condens. Matter
15 (19) (2003) 3003–3012.
[69] C.D.F. Honig, W.A. Ducker, No-slip hydrodynamic boundary condition for hydrophilic
particles, Phys. Rev. Lett. 98 (2) (2007) 028305.
[70] O.I. Vinogradova, H.-J. Butt, G.E. Yakubov, F. Feuillebois, Dynamic effects on force
measurements. Viscous drag on the atomic force microscope cantilever, Rev. Sci.
Instrum. 72 (2001) 2330–2339.
[71] O.I. Vinogradova, G.E. Yakubov, Dynamic effects on force measurements. 2. Lubrication
and the atomic force microscope, Langmuir 19 (2003) 1227–1234.
[72] D.E. Aston, J.C. Berg, Thin-film hydrodynamics in fluid interface-atomic force microscopy,
Ind. Eng. Chem. Res. 41 (2002) 389–396.