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Dendrimers in Layer-by-Layer Assemblies: Synthesis and Applications
Graduate School of Pharmaceutical Sciences, Tohoku University, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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Received: 27 June 2013; in revised form: 8 July 2013 / Accepted: 15 July 2013 / Published: 17 July 2013
Abstract: We review the synthesis of dendrimer-containing layer-by-layer (LbL) assemblies and their applications, including biosensing, controlled drug release, and bio-imaging. Dendrimers can be built into LbL films and microcapsules by alternating deposition of dendrimers and counter polymers on the surface of flat substrates and colloidal microparticles through electrostatic bonding, hydrogen bonding, covalent bonding, and biological affinity. Dendrimer-containing LbL assemblies have been used to construct biosensors, in which electron transfer mediators and metal nanoparticles are often coupled with dendrimers. Enzymes have been successfully immobilized on the surface of electrochemical and optical transducers by forming enzyme/dendrimer LbL multilayers. In this way, high-performance enzyme sensors are fabricated. In addition, dendrimer LbL films and microcapsules are useful for constructing drug delivery systems because dendrimers bind drugs to form inclusion complexes or the dendrimer surface is covalently modified with drugs. Magnetic resonance imaging of cancer cells by iron oxide nanoparticles coated with dendrimer LbL film is also discussed.
Keywords: dendrimer; layer-by-layer film; multilayer film; microcapsule; biosensor; drug delivery; imaging
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MDPI and ACS Style
Sato, K.; Anzai, J.-I. Dendrimers in Layer-by-Layer Assemblies: Synthesis and Applications. Molecules 2013, 18, 8440-8460.
Sato K, Anzai J-I. Dendrimers in Layer-by-Layer Assemblies: Synthesis and Applications. Molecules. 2013; 18(7):8440-8460.
Sato, Katsuhiko; Anzai, Jun-ichi. 2013. "Dendrimers in Layer-by-Layer Assemblies: Synthesis and Applications." Molecules 18, no. 7: 8440-8460.