peptide aggregation

[dr y u sasidhar]

dear netters,
we are characterizing a beta hairpin peptide in aqueous solution using
NMR. it appears that there is aggregation (conc 2mM). can solvents like
methanol be used to prevent or decrease the extent of aggregation. are 
there any references for the same. any information on this will be greatly
appreciated.

Thanking you in advance,
ramkrishna

Ramkrishna
dept. of chemistry
iit bombay