Enhancement of the intermolecular interactions of L-glutamate amphiphiles is achieved by introducing multiple amide bonds and longer alkyl chains, which leads to better self-assembling properties.

Image Credit: Nanalysis Corp. In the amide, N,N–dimethylacetamide (DMA), two different signals are observed on the 1 H NMR spectrum as two methyl groups bond to the nitrogen (Figure 1).