Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 6, Issue 13, Pages 10631-10637Publisher
AMER CHEMICAL SOC
DOI: 10.1021/am502319m
Keywords
Janus microbead; alginate; polydiacetylene liposome; magnetic nanoparticle; lead(II) detection
Funding
- National Research Foundation (NRF) of Korea - Ministry of Science, ICT & Future Planning [2012M3A9B4028738]
- Global Ph.D. Fellowship Program through the NRF of Korea - Ministry of Education [2011-0007317]
- Ministry of Oceans and Fisheries, Korea [20110171]
- Basic Science Research Program through the NRF of Korea - ministry of Education [2013055323]
- Animal, Plant and Fisheries Quarantine and Inspection Agency of Korea [I-AD14-2011-13-11]
- Converging Research Center Program - Ministry of Science, ICT and Future Planning [2013K000314]
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Janus-compartmental alginate microbeads having two divided phases of sensory polydiacetylene (PDA) liposomes and magnetic nanoparticles were fabricated for facile sensory applications. The sensory liposomes are composed of PDA for label-free signal generation and 1,2-dipalmitoyl-sn-glycero-3-galloyl (DPGG) lipids whose galloyl headgroup has specific interactions with lead(II). The second phase having magnetic nanoparticles is designed for convenient handling of the microbeads, such as washing, solvent exchange, stirring, and detection, by applying magnetic field. Selective and convenient colorimetric detection of lead(II) and efficient removal of lead(II) by alginate matrix at the same time are demonstrated.
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