Triplet Fusion Upconversion with Oxygen Resistance in Aqueous Media

Ding，Lei1; Zhou，Jiajia1; Fu，Qiang2; Bao，Guochen1; Liu，Yongtao1; Jin，Dayong1,3

2021

10.1021/acs.analchem.1c00096

ANALYTICAL CHEMISTRY   影响因子和分区

0003-2700

1520-6882

Triplet fusion upconversion (also called triplet-triplet annihilation, TTA) arouses much attention due to its potential in the fields of biological imaging, optogenetics, and light harvesting. However, oxygen quenching remains a challenge ahead, restricting its applications in aqueous media. Previous efforts to realize aqueous TTA with oxygen resistance have been focused on core-shell structures and self-assembly, but tedious processes and complicated chemical modification are required. Here, we report a direct and efficient strategy to realize aqueous TTA by controlling the ionic equilibrium of the TTA dyad. We find that the ionized organic dyad in physiological buffers and electrolyte-based media shows a natural aerotolerance without any complicated structure engineering. In particular, the upconversion intensity of this aqueous TTA in Tris buffer under an air-saturated condition is more than twice that under the deaerated condition. We further demonstrate the TTA system for potential applications in pH and temperature sensing with reversible and sensitive performance. We anticipate this facile approach will inspire the development of practical aqueous TTA and broad applications in biological science.

SCI ; EI

英语

NI期刊

其他

WOS:000634562600037

20211410169085

Chemical modification ; Electrolytes ; Ionization

Chemical Reactions:802.2 ; Chemical Products Generally:804

CHEMISTRY

2-s2.0-85103465927

Scopus

1.Institute for Biomedical Materials and Devices,Faculty of Science,University of Technology Sydney,Sydney,2007,Australia
2.Centre for Technology in Water and Wastewater,School of Civil and Environmental Engineering,University of Technology Sydney,Sydney,2007,Australia
3.UTS-SUStech Joint Research Centre for Biomedical Materials and Devices,Department of Biomedical Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Ding，Lei,Zhou，Jiajia,Fu，Qiang,et al. Triplet Fusion Upconversion with Oxygen Resistance in Aqueous Media[J]. ANALYTICAL CHEMISTRY,2021,93:4641-4646.

Ding，Lei,Zhou，Jiajia,Fu，Qiang,Bao，Guochen,Liu，Yongtao,&Jin，Dayong.(2021).Triplet Fusion Upconversion with Oxygen Resistance in Aqueous Media.ANALYTICAL CHEMISTRY,93,4641-4646.

Ding，Lei,et al."Triplet Fusion Upconversion with Oxygen Resistance in Aqueous Media".ANALYTICAL CHEMISTRY 93(2021):4641-4646.