Chemical Nanosensors Based on Composite Molecularly Imprinted Polymer Particles and Surface-Enhanced Raman Scattering

Chemical Nanosensors Based on Composite Molecularly Imprinted Polymer Particles and Surface-Enhanced Raman Scattering

Chemical nanosensors with a submicrometer core–shell composite design, based on a polymer core, a molecularly imprinted polymer (MIP) shell for specific analyte recognition, and an interlayer of gold nanoparticles for signal amplification, are described. SERS measurements on single nanosensors yield...

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Veröffentlicht in:Advanced materials (Weinheim) 2010-06, Vol.22 (21), p.2343-2348
Hauptverfasser: Bompart, Marc, De Wilde, Yannick, Haupt, Karsten
Format: Artikel
Sprache:eng
Schlagworte:
Chemical Sciences
Chemical sensors
Crystallization - methods
Equipment Design
Equipment Failure Analysis
Macromolecular Substances - chemistry
Materials Testing
Molecular Conformation
Molecularly imprinted polymers
Nanocomposites
Nanostructures - chemistry
Nanostructures - ultrastructure
Nanotechnology - instrumentation
Particle Size
Polymers - chemistry
Propranolol - analysis
Propranolol - chemistry
Raman spectroscopy
Surface Plasmon Resonance - instrumentation
Surface Properties
Surface-enhanced Raman spectroscopy (SERS)
Transducers
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Zusammenfassung:Chemical nanosensors with a submicrometer core–shell composite design, based on a polymer core, a molecularly imprinted polymer (MIP) shell for specific analyte recognition, and an interlayer of gold nanoparticles for signal amplification, are described. SERS measurements on single nanosensors yield detection limits of 10−7 M for the β‐blocker propranolol, several orders of magnitude lower than on plain MIP spheres.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.200904442