Near Infared Circularly Polarized Luminescence From Water Stable Organic Nanoparticles Containing a Chiral Yb(III) Complex

被引：17

作者：

Cavalli, Enrico ^{[1
]}

Nardon, Chiara ^{[2
]}

Willis, Oliver G. ^{[3
]}

Zinna, Francesco ^{[3
]}

Di Bari, Lorenzo ^{[3
]}

Mizzoni, Silvia ^{[2
]}

Ruggieri, Silvia ^{[2
]}

Gaglio, Salvatore C. ^{[4
]}

Perduca, Massimiliano ^{[4
]}

Zaccone, Claudio ^{[5
]}

Romeo, Alessandro ^{[6
]}

Piccinelli, Fabio ^{[2
]}

机构：

[1] Parma Univ, Dept Chem Sci Life & Environm Sustainabil, Parco Area Sci 11-a, I-43124 Parma, Italy

[2] Verona Univ, Luminescent Mat Lab, DB, Str Grazie 15, I-37134 Verona, Italy

[3] Pisa Univ, Dept Chem & Ind Chem, Via Moruzzi 13, I-56124 Pisa, Italy

[4] Verona Univ, Dept Biotechnol, Biocrystallog Lab, Str Grazie 15, I-37134 Verona, Italy

[5] Verona Univ, Dept Biotechnol, Str Grazie 15, I-37134 Verona, Italy

[6] Verona Univ, Dept Comp Sci, Str Grazie 15, I-37134 Verona, Italy

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2022年 / 28卷 / 37期

关键词：

circularly polarized luminescence; lanthanide complexes; luminescence; nanoparticles; optical imaging; LANTHANIDE; YTTERBIUM(III); SPECTROSCOPY; PROTEINS; BRIGHT;

D O I：

10.1002/chem.202200574

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report the first example of very efficient NIR Circularly Polarized Luminescence (CPL) (around 970 nm) in water, obtained thanks to the combined use of a chiral Yb complex and of poly lactic-co-glycolic acid (PLGA) nanoparticles. [YbL(tta)(2)]CH3COO (L=N, N'-bis(2-pyridylmethylidene)-1,2-(R,R+S,S) cyclohexanediamine and tta=2-thenoyltrifluoroacetonate) shows good CPL in organic solvents, because the tta ligands efficiently sensitize Yb NIR luminescence and the readily prepared chiral ligand L endows the complex with the necessary dissymmetry. PLGA nanoparticles incorporate the complex and protect the metal ion from the intrusion of solvent molecules, while ensuring biocompatibility, water solubility and stability to the complex. Hydrophilic NIR-CPL optical probes can find applications in the field of NIR-CPL bio-assays.

引用

页数：7

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