. Author manuscript; available in PMC: 2014 Nov 21.

Published in final edited form as: Soft Matter. 2013 Nov 21;9(43):10.1039/C3SM51209F. doi: 10.1039/C3SM51209F

Table 2. Name, sequence, charge and M. W. of peptide modules^a.

Name	L-peptide module	D-peptide module^b	Name	charge^c	M.W. (Da)
L⁺	Ac-^LK-^LW-(^LK-^LA)₃-^LK-^LW-^LK-am	Ac-^DK-^DW-(^DK-^DA)₃-^DK-^DW-^DK-am	D⁺	+6	1,413
L^-	Ac-^LE-^LW-(^LE-^LA)₃-^LE-^LW-^LE-am	Ac-^DE-^DW-(^DE-^DA)₃-^DE-^DW-^DE-am	D^-	-6	1,419

A: alanine; E: glutamic acid; K: lysine; W: tryptophan; Ac-: acetylation; -am: amidation.

The two positive modules, L⁺ and D⁺, form a mirror image pair. So do the negative modules, L⁻ and D⁻.

Gelation is induced by pairing oppositely charged peptide modules. (L⁺L⁻) and (D⁺D⁻) are two homochiral gels that are mirror images of each other; (L⁺D⁻) and (D⁺L⁻) are two heterochiral gels that are mirror images of each other.

Table 2. Name, sequence, charge and M. W. of peptide modulesa.

Table 2. Name, sequence, charge and M. W. of peptide modules^a.