1. D. Ganderton and T. Jones. Drug Delivery to the Respiratory Tract, Academic Press, London, 1987.
2. J. S. Patton. Mechanisms of macromolecule absorption by the lungs. Adv. Drug Deliv. Rev.
3. D. L. Ross and B. J. Gabrio. Advances in metered dose inhaler technology with the development of a chlorofluorocarbon free drug delivery system. J. Aerosol Med.
4. H. D. C. Smyth. The influence of formulation variables on the performances of alternative propellant-driven metered dose inhalers. Adv. Drug Deliv. Rev.
5. D. Ganderton. Patients, devices and formulations. J. Aerosol Med.
6. J. A. Ranucci, S. Dixit, R. N. J. Bray, and D. Goldman. Controlled flocculation in meterd-dose aerosol suspensions. Pharmacetical Technology
7. Y. Michael, M. J. Snowden, B. Z. Chowdhry, I. C. Ashurst, C. J. Davies-Cutting, and T. Ripley. Characterisation of the aggregation behaviour in a salmeterol and fluticasone propionate inhalation aerosol system. Int. J. Pharm.
8. E. M. Phillips, P. R. Byron, and R. N. Dalby. Axial-ratio measurements for early detection of crystal-growth in suspension-type metered dose inhalers. Pharm. Res.
9. C. J. van Oss. Interfacial Forces in Aqueous Media, Marcel Dekker, New York, 1994.
10. R. J. Good. Contact-angle, wetting, and adhesion—a critical-review. J. Adhes. Sci. Technol.
11. M. D. Ticehurst, R. C. Rowe, and P. York. Determination of the surface properties of two batches of ss by inverse gas chromatography. Int. J. Pharm.
12. O. Planinsek and G. Buckton. Inverse gas chromatography: considerations about appropriate use for amorphous and crystalline powders. J. Pharm. Sci.
13. G. Binnig and C. F. Quate. Atomic force microscope. Phys. Rev. Lett.
14. R. Ashayer, P. F. Luckham, S. Manimaaran, and P. Rogueda. Investigation of the molecular interactions in a pMDI formulation by atomic force microscopy. Eur. J. Pharm. Sci.
15. P. Young, R. Price, D. Lewis, S. Edge, and D. Traini. Under pressure: predicting pressurized metered dose inhaler interactions using the atomic force microscope. J. Colloid Interface Sci.
16. F. M. Fowkes. Additivity of intermolecular forces at interfaces. I. Determination of the contribution to surface and interfacial tension of dispersion forces in various liquids. J. Phys. Chem.
17. R. J. Good and L. A. Girifalco. A theory for estimation of surface and interfacial energies. III. Estimation of surface energies of solids from contact angle data. J. Phys. Chem.
18. B. V. Derjaguin and L. D. Landau. Theory of the stability of strongly charged lyophobic sols and of the adhesion of strongly charged particles in solutions of electrolytes. Acta Physicochimica. U.S.S.R.
19. E. J. W. Verwey and J. T. G. Overbeek. Theory of the Stability of Lyophobic Colloids, Elsevier, Amsterdam, 1948.
20. C. Vervaet and P. R. Byron. Drug surfactant propellant interactions in HFA formulations. Int. J. Pharm.
21. R. J. Pugh, T. Matsunaga, and F. M. Fowkes. The dispersability and stability of carbon black in media of low dielectric constant. I: Electrostatic and steric contributions to colloidal stability. Colloids Surf.
22. A. Kitahara. Zeta potential in non-aqueous media and its effect on dispersion stability. Prog. Organic Coatings
23. D. A. Wyatt and B. Vincent. Electrical effects in non-aqueous systems. J. Biopharm. Sci.
24. J. A. Brant and A. E. Childress. Assessing short-range membrane-colloid interactions using surface energetics. J. Membr. Sci.
25. J. A. Brant and A. E. Childress. Colloidal adhesion to hydrophilic membrane surfaces. J. Membr. Sci.
26. H. Hertz. On the contact of elastic solids. J. Reine Angew. Math.
27. K. Johnson, K. L. Kendall, and A. D. Roberts. Surface energy and the contact of elastic solids. Proc. R. Soc. Lond. A
28. B. V. Derjaguin, V. M. Müller, and Y. P. Toporov. Effect of contact deformations on the adhesion of particles. J. Colloid Interface Sci.
29. G. Rhodes. Crystallography—Made Crystal Clear, Academic Press, New York, USA, 1993.
30. W. A. Ducker, T. J. Senden, and R. M. Pashley. Direct measurement of colloidal forces using an atomic force microscope. Nature
31. P. M. Young, R. Price, M. J. Tobyn, M. Buttrum, and F. Dey. The influence of relative humidity on the cohesion properties of micronised drugs used in inhalation therapy. J. Pharm. Sci.
32. P. G. A. Rogueda. HPFP, a model propellant for pMDIs. Drug Dev. Ind. Pharm.
33. H. Mizes, M. Ott, E. Eklund, and D. Hays. Small particle adhesion: measurement and control. Colloids and Surfaces A
34. R. Price, P. M. Young, S. Edge, and J. N. Staniforth. The influence of relative humidity on particulate interactions in carrier-based dry powder inhaler formulations. Int. J. Pharm.
35. P. Begat, D. A. V. Morton, J. N. Staniforth, and R. Price. The cohesive-adhesive balances in dry powder inhaler formulations I: direct quantification by atomic force microscopy. Pharm. Res.
36. C. J. Van Oss, R. J. Good, and M. K. Chaudhury. Additive and non-additive surface tension components and the interpretation of contact angles. Langmuir
37. R. J. Good and R. R. Stromberg. Surface and Colloid Science, Plenum Press, New York, 1979.
38. G. Buckton. Interfacial Phenomena in Drug Delivery and Targeting, Harwood Academic Publishers, Chur, Switzerland, 1995.
39. G. Buckton, P. Darcy, and D. McCarthy. The extent of errors associated with contact angles 3. The influence of surface roughness effects on angles measured using a Wilhelmy plate technique for powders. Colloids and Surfaces A
40. J. Schultz, L. Lavielle, and C. Martin. The role of the interface in carbon fibre-epoxy composites. J. Adhes. Sci. Technol.
41. V. Gutmann. The Donor-Acceptor Approach to Molecular Interactions, Plenum Publishing Corporation, New York, 1978.
42. F. L. Riddle and F. M. Fowkes. Spectral shifts in acid-base chemistry.1. Van der Waals contributions to acceptor numbers. J. Am. Chem. Soc.
43. N. M. Ahfat, G. Buckton, R. Burrows, and M. D. Ticehurst. Predicting mixing performance using surface energy measurements. Int. J. Pharm.
44. O. Planinsek, A. Trojak, and S. Srcic. The dispersive component of the surfac fee energy of powders assessed using inverse gas chromatography and contact angle measurements. Int. J. Adhesion Adhesives
45. J. C. Hooton, C. S. German, S. Allen, M. C. Davies, C. J. Roberts, S. J. B. Tendler, and P. M. Williams. An atomic force microscopy study of the effect of nanoscale contact geometry and surface chemistry on the adhesion of pharmaceutical particles. Pharm. Res.
46. J. L. Parker, D. L. Cho, and P. M. Claesson. Plasma modification of mica: forces between fluorocarbon surfaces in water and nonpolar liquid. J. Phys. Chem.
47. H. Yotsumoto and R.-H. Yoon. Application of extended DLVO theory. J. Colloid Interface Sci.
48. P. M. Claesson and H. K. Christenson. Very long range attractive forces between uncharged hydrocarbon and fluorocarbon surfaces in water. J. Phys. Chem.