Temperature Dependence of Triplet–Triplet Annihilation Upconversion in Phospholipid Membranes | Zendy

Sven H. C. Askes | Zendy; Philip Brodie | Zendy; Gilles Bruylants | Zendy; Sylvestre Bonnet | Zendy

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Temperature Dependence of Triplet–Triplet Annihilation Upconversion in Phospholipid Membranes

Author(s) -

Sven H. C. Askes,

Philip Brodie,

Gilles Bruylants,

Sylvestre Bonnet

Publication year - 2017

Publication title -

the journal of physical chemistry b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.864

H-Index - 392

eISSN - 1520-6106

pISSN - 1520-5207

DOI - 10.1021/acs.jpcb.6b10039

Subject(s) - annihilation , photon upconversion , phospholipid , membrane , chemistry , photochemistry , materials science , physics , nuclear physics , doping , optoelectronics , biochemistry

Understanding the temperature dependency of triplet-triplet annihilation upconversion (TTA-UC) is important for optimizing biological applications of upconversion. Here the temperature dependency of red-to-blue TTA-UC is reported in a variety of neutral PEGylated phospholipid liposomes. In these systems a delicate balance between lateral diffusion rate of the dyes, annihilator aggregation, and sensitizer self-quenching leads to a volcano plot, with the maximum upconversion intensity occurring near the main order-disorder transition temperature of the lipid membrane.

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