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.
Resolution of the helical pitch of xanthan: (a) Method 1, drop-deposited, imaged in buffer 1. (b) Method 2, in-situ adsorbed from and imaged in buffer 2. Bottom panels: Line profiles depict the heights of the features beneath the white lines in the images.
