Nanopaper as an Optical Sensing Platform
Language English Country United States Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
- Keywords
- biosensing, composite, nanocellulose, optical sensors, photoluminescent devices, plasmonic devices,
- MeSH
- Absorption, Radiation MeSH
- Biosensing Techniques instrumentation MeSH
- Cellulose chemistry MeSH
- Metal Nanoparticles chemistry MeSH
- Quantum Dots chemistry MeSH
- Optical Phenomena MeSH
- Optical Devices * MeSH
- Paper * MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Cellulose MeSH
Bacterial cellulose nanopaper (BC) is a multifunctional material known for numerous desirable properties: sustainability, biocompatibility, biodegradability, optical transparency, thermal properties, flexibility, high mechanical strength, hydrophilicity, high porosity, broad chemical-modification capabilities and high surface area. Herein, we report various nanopaper-based optical sensing platforms and describe how they can be tuned, using nanomaterials, to exhibit plasmonic or photoluminescent properties that can be exploited for sensing applications. We also describe several nanopaper configurations, including cuvettes, plates and spots that we printed or punched on BC. The platforms include a colorimetric-based sensor based on nanopaper containing embedded silver and gold nanoparticles; a photoluminescent-based sensor, comprising CdSe@ZnS quantum dots conjugated to nanopaper; and a potential up-conversion sensing platform constructed from nanopaper functionalized with NaYF4:Yb(3+)@Er(3+)&SiO2 nanoparticles. We have explored modulation of the plasmonic or photoluminescent properties of these platforms using various model biologically relevant analytes. Moreover, we prove that BC is and advantageous preconcentration platform that facilitates the analysis of small volumes of optically active materials (∼4 μL). We are confident that these platforms will pave the way to optical (bio)sensors or theranostic devices that are simple, transparent, flexible, disposable, lightweight, miniaturized and perhaps wearable.
‡Department of Chemistry College of Science Shahid Chamran University Ahvaz 6135743337 Iran
∥ICREA Institucio Catalana de Recerca i Estudis Avançats Barcelona 08010 Spain
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