Water-Soluble Fullerenol with Hydroxyl Group Dependence for Efficient Two-Photon Excited Photodynamic Inactivation of Infectious Microbes

Table 4 The lifetime data and the parameter generated using a time-correlated single-photon counting technique involving a triple-exponential fitting function while monitoring the emission with 760 nm of wavelength under TPE

	3 exp fitting model: (a0exp(a1x) + a2exp(a3x) + a4*exp(a5x) + a6)							Lifetime1	Lifetime2	Lifetime3	Average lifetime (ns)
	a0	a1	a2	a3	a4	a5	a6	Lifetime1	Lifetime2	Lifetime3	Average lifetime (ns)
C₆₀(OH)₄₆	112.448	− 6.69057	1089.64	− 0.56349	624.637	− 0.05082	− 291.897	0.149464	1.77467	19.67907	7.796924026
C₆₀(OH)₂₁	112.968	− 1.00006	156.714	− 0.28551	129.934	− 0.09045	− 5.90298	0.99994	3.50248	11.05533	5.250821264

The parameters were obtained from the iterative reconvolution of the decay with the instrument response function