Orthogonally dual-clickable Janus nanoparticles via a cyclic templating strategy |
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Authors: | Zhang Shiyi Li Zhou Samarajeewa Sandani Sun Guorong Yang Chao Wooley Karen L |
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Institution: | Department of Chemistry, Texas A&M University, College Station, Texas 77842, USA. |
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Abstract: | Synthetic asymmetrical systems, Janus particles and patchy particles, are capable of undergoing hierarchical assembly processes that mimic those of Nature, to serve as switchable devices, optical probes, phase-transfer catalysts, and multifunctional drug carriers, each of which benefits from opposing surface patterns that behave differently. Production of nanometer-sized Janus particles that are equipped with efficient chemistries remains a challenge. A robust Janus-faced polymer nanoparticle framework that presents two orthogonally click-reactive surface chemistries has been generated by a recyclable strategy that involves reactive functional group transfer by templating against gold nanoparticle substrates. This anisotropic functionalization approach is compatible with a wide range of soft materials, providing Janus nanoparticles for the construction of dual-functionalized devices by accurately controlling chemical functionality at the nanoscopic level. |
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