Single-molecule force spectroscopy on carrageenan by means of AFM

Authors
Xu, QB Zou, S Zhang, WK Zhang, X
Citation
Qb. Xu et al., Single-molecule force spectroscopy on carrageenan by means of AFM, MACRO RAPID, 22(14), 2001, pp. 1163-1167
Citations number
31
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
MACROMOLECULAR RAPID COMMUNICATIONS
ISSN journal
10221336 → ACNP
Volume
22
Issue
14
Year of publication
2001
Pages
1163 - 1167
Database
ISI
SICI code
1022-1336(20010928)22:14<1163:SFSOCB>2.0.ZU;2-7
Abstract
A marked difference in force-extension curves is observed for carrageenan b efore and after adding NaI buffer in single-molecule force spectroscopy by means of atomic force microscopy (AFM). The salt-induced helix conformation in carrageenan treated with an 0.1 m NaI solution was unfolded under the e xternal force, and a long plateau about 300 pN high could be observed in th e force-extension curves.