Journal
ADVANCED SCIENCE
Volume 4, Issue 6, Pages -Publisher
WILEY
DOI: 10.1002/advs.201600481
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Funding
- Nanyang Technological University [NTU-SUG: M4081627.120]
- Singapore Ministry of Education [RG133/15: M4011559]
- Ministry of Education in Singapore [MOE2016-T2-1-098]
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Molecular probes that change their signals in response to the target of interest have a critical role in fundamental biology and medicine. Semi-conducting polymer nanoparticles (SPNs) have recently emerged as a new generation of purely organic photonic nanoagents with desirable properties for biological applications. In particular, tunable optical properties of SPNs allow them to be developed into photoluminescence, chemiluminescence, and photoacoustic probes, wherein SPNs usually serve as the energy donor and internal reference for luminescence and photoacoustic probes, respectively. Moreover, facile surface modification and intraparticle engineering provide the versatility to make them responsive to various biologically and pathologically important substances and indexes including small-molecule mediators, proteins, pH and temperature. This article focuses on recent advances in the development of SPN-based activatable molecular probes for sensing and imaging. The designs and applications of these probes are discussed in details, and the present challenges to further advance them into life science are also analyzed.
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