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. 2023 Feb 24;145(9):5431–5438. doi: 10.1021/jacs.2c13743

Figure 2.

Figure 2

Spectroscopic characterization. The DNA-linked PENn are dissolved in phosphate-buffered saline with a pentacene concentration of 100 μM. The monomeric ssDNA-PEN is dissolved in a DMSO/buffer mixture (95:5 v/v) to suppress aggregation. (a) Steady-state absorption spectra of the DNA-linked pentacenes and the monomeric ssDNA-PEN. (b–e) Femto-/picosecond TA spectra of the samples, following photoexcitation at 600 nm (pump fluence 5 × 10–5 J cm–2). Spectra are normalized to their respective integrals. (f) SF rate constants derived from exponential fits of the deconvoluted spectra.