Fig. 3: Characterization of binding behavior between TPE-PY and CB[7]/CB[8]. | Nature Communications

Fig. 3: Characterization of binding behavior between TPE-PY and CB[7]/CB[8].

From: Supramolecular assembly activated single-molecule phosphorescence resonance energy transfer for near-infrared targeted cell imaging

Fig. 3

a 1H NMR spectra (400 MHz, D2O with 10% DMSO-d6, 298 K) of TPE-PY (red), TPE-PY:CB[7] = 1:1 (black), TPE-PY:CB[7] = 1:2 (green), TPE-PY:CB[7]:CB[8] = 2:2:1 (blue); b From left to right, the binding constants of PY-1 and TPE-2 with the addition of CB[7], and TPE-PY with the addition of CB[8]. c UV-vis absorption of TPE-DPY ([TPE-DPY] = 1 × 10−5 M), TPE-DPY/2CB[7] ([TPE-DPY] = 1 × 10−5 M, [CB[7]] = 2 × 10−5 M), TPE-DPY/4CB[7] ([TPE-DPY] = 1 × 10−5 M, [CB[7]] = 4 × 10−5 M), TPE-DPY/CB[8] ([TPE-DPY] = 1 × 10−5 M, [CB[8]] = 1 × 10−5 M), TPE-DPY/CB[7]/CB[8]. ([TPE-DPY] = 1 × 10−5 M, [CB[7]] = 2 × 10−5 M, [CB[8]] = 1 × 10−5 M).

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