Please use this identifier to cite or link to this item: https://doi.org/10.1002/adfm.201001435
Title: Polyhedral oligomeric silsesquioxanes-containing conjugated polymer loaded PLGA nanoparticles with trastuzumab (herceptin) functionalization for HER2-positive cancer cell detection
Authors: Li, K.
Liu, Y.
Pu, K.-Y. 
Feng, S.-S. 
Zhan, R.
Liu, B. 
Keywords: cancer detection
conjugated polymers
Herceptin
nanoparticles
trastuzumab
Issue Date: 21-Jan-2011
Citation: Li, K., Liu, Y., Pu, K.-Y., Feng, S.-S., Zhan, R., Liu, B. (2011-01-21). Polyhedral oligomeric silsesquioxanes-containing conjugated polymer loaded PLGA nanoparticles with trastuzumab (herceptin) functionalization for HER2-positive cancer cell detection. Advanced Functional Materials 21 (2) : 287-294. ScholarBank@NUS Repository. https://doi.org/10.1002/adfm.201001435
Abstract: The synthesis of polyhedral oligomeric silsesquioxanes (POSS)-containing conjugated polymer (CP) and the polymer loaded poly(lactic-co-glycolic-acid) (PLGA) nanoparticles (NPs) with surface antibody functionalization for human epidermal growth factor receptor 2 (HER2)-positive cancer cell detection are reported. Due to the steric hindrance of POSS, NPs prepared from POSS-containing CP show improved photoluminescence quantum yield as compared to that for the corresponding linear CP encapsulated NPs. In addition, the amount of -NH 2 groups on NP surface is well-controlled by changing the molar ratio of poly(lactic-co-glycolic-acid)-b-poly(ethylene glycol) (PLGA-b-PEG-NH 2) to PLGA-OCH during NP formulation. Further conjugation of the NH2-functionalized CP NPs with trastuzumab (Herceptin) yields NPs with fine-tuned protein density. These NPs are able to discriminate SKBR-3 breast cancer cells from MCF-7 breast cancer cells and NIH/3T3 fibroblast cells both on substrate and in suspension by taking advantage of the specific binding affinity between trastuzumab and HER2 overexpressed in SKBR-3 breast cancer cell membrane. The high quantum yield and fine-tuned surface specific protein functionalization make the POSS-containing CP loaded NPs a good candidate for targeted biological imaging and detection. Polyhedral oligomeric silsesquioxanes (POSS)-containing conjugated polymer (CP) loaded PLGA nanoparticles with high quantum yield and fine-tuned surface trastuzumab functionalization are synthesized for human epidermal growth factor receptor 2 (HER2)-positive cancer cell detection. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Source Title: Advanced Functional Materials
URI: http://scholarbank.nus.edu.sg/handle/10635/89841
ISSN: 1616301X
DOI: 10.1002/adfm.201001435
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