Photothermal conversion efficiency

If effective absorbance and photothermal conversion efficiency are independent on the fluence, absorbed energy should be proportional to the latter and the slopes can be discussed simply in terms of thermal expansion coefficient of polymer Aims. The coefficient of linear expansion of rubber and glass states, ttg and Of, below and above glass-rubber transition temperature (Tg) of PMMA is (2.5-2.7) X 10- K and (5.6-5.S) X W K , respectively 3S). We consider that the one-dimensional expansion is induced along the perpendicular direction to the film, since polymer film outside the area irradiated by the excimer laser is of course hard. Then, the volume expansion could be replaced by the linear one along the thickness, so that corresponds to the change in the slope below... 

For evaluating photothermal agents, one of the key parameters is photothermal conversion efficiency. In this chapter, we first introduce the measurement method for photothermal conversion efficiency, which is discussed by an example from our group. Subsequendy,we summarize the progress of research on the four kinds of photothermal agents as well as the combination of PAT with other nanobiotechnology. The future prospects and challenges of this novel approach to cancer therapy are addressed in the final section of this chapter. 

Photothermal conversion efficiency (PCE) is an important parameter that describes the photothermal performances of materials. The classical calculation method for PCE developed by Roper et al. in 2007 has since been widely used in PCE calculation. ... 

Miscellaneous applications of phosphates have included use of porphysome nanoparticles as a nontoxic alternative to inorganic nanocrystals for the efficient conversion of light into heat in photothermal therapy, fluorescent phosphates for qualitative and quantitative analysis of organophosphates in water and simultaneous differentiation and quantitative analysis of a methylphosphonate (a nerve gas byproduct) and glyphosate. 

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