Fig. 2
From: Supramolecular trap for catching polyamines in cells as an anti-tumor strategy
Host–guest complexation studies. 1H NMR spectra (500 MHz, 298 K, D2O) of a spm (3.0 mM), b spm (3.0 mM) + CP5A (3.0 mM) and c CP5A (3.0 mM); d fluorescence spectra of P1P5A (2.46 × 10−6 M) in aqueous PBS (pH 7.4) with different concentrations of spm at 298 K, inset: the nonlinear least-squares analysis to calculate the Ka value
