Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Average force curve (·) plus standard deviation (dashed lines) for each surface/probe pairing and modeled approach curve with least squares fit effective Hamaker constant (solid line). a: PDMS/silica; b: PDMS/PSL; c: dextran-PDMS/silica; d: dextran-PDMS/PSL
