Journal
TOPICS IN CURRENT CHEMISTRY
Volume 380, Issue 5, Pages -Publisher
SPRINGER INT PUBL AG
DOI: 10.1007/s41061-022-00386-6
Keywords
Near-infrared luminescence; Bioimaging and biosensing; D-block transition metals; Lanthanides
Categories
Funding
- National Natural Science Foundation of China [21571007, 21621061, 21778002, 21861162008]
- Chemistry and Chemical Engineering Guangdong Laboratory [1932002]
- High-performance Computing Platform of Peking University
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Near-infrared (NIR) luminescent metal complexes, with their advantages such as low photon scattering and small size, have shown great potential as molecular probes for bioassays. Scientists have made significant progress in improving the properties and platforms of these complexes in the past decade, enhancing their applicability in biomedical imaging.
Near-infrared (NIR, 700-1700 nm) luminescent imaging is an emerging bioimaging technology with low photon scattering, minimal autofluorescence, deep tissue penetration, and high spatiotemporal resolution that has shown fascinating promise for NIR imaging-guided theranostics. In recent progress, NIR luminescent metal complexes have attracted substantially increased research attention owing to their intrinsic merits, including small size, anti-photobleaching, long lifetime, and metal-centered NIR emission. In the past decade, scientists have contributed to the advancement of NIR metal complexes involving efforts to improve photophysical properties, biocompatibility, specificity, pharmacokinetics, in vivo visualization, and attempts to exploit new ligand platforms. Herein, we summarize recent progress and provide future perspectives for NIR metal complexes, including d-block transition metals and f-block lanthanides (Ln) as NIR optical molecular probes for bioassays.
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