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Nanopaper as an Optical Sensing Platform

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:Yb3+@Er3+&SiO2 nanoparticles...

Authors:   Eden Morales-Narváez; Hamed Golmohammadi; Tina Naghdi; Hossein Yousefi; Uliana Kostiv; Daniel Horák; Nahid Pourreza; Arben Merkoçi
Journal:   ACS Nano
Year:   2015
DOI:   10.1021/acsnano.5b03097
Publication date:   08-Jul-2015
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