Fig. 2. ATR FT-IR analysis of LNPs/Con A and LNPs/polyelectrolyte/Con A samples. LNPs alone: black line; LNPs/Con A: red line; LNPs/PDDA/Con A: purple line; LNPs/CH/Con A: azure line; LNPs/CATLIG/Con A: brown line. The presence of Con A was associated to the appearance of the amide I band in the spectrum (c.a. 1.644 cm⁻¹).