https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.101.208301 (Publisher version)
Soyka, F., Zvyagolskaya, O., Hertlein, C., Helden, L., & Bechinger, C. (2008). Critical Casimir Forces in Colloidal Suspensions on Chemically Patterned Surfaces. Physical Review Letters, 101: 208301, pp. 1-4. doi:10.1103/PhysRevLett.101.208301.