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Novel interferometric nanosensor for CO2 detection using nanozif-8 mofs as specific receptors

AutorChocarro Ruiz, Blanca; Pérez, J.; Maspoch, Daniel ; Lechuga, Laura M.
Fecha de publicación2017
CitaciónNyNA 2017
ResumenDespite the strong advances in the field of sensing and analytical techniques, the specific and fast control of a large number of environmental pollutants is still challenging. This is mainly due to the lack of analytical tools which, in addition to being fast, accurate and reliable, have an affordable cost and, more importantly, bare selective. For this reason, we have developed a novel photonic nanosensor, using a new class of nanoporous materials, the so-called Metal-Organic Frameworks (MOFs), as receptors for the rapid and selective detection of carbon dioxide as a control parameter for environmental monitoring. The nanosensor transducer is based on highly sensitive heteromodal waveguides and the receptors are transparent nanoZIF-8, made by zinc ions clusters coordinated by four imidazolate rings. The MOF layer is deposited by spin-coating and permanently attached to the sensor surface through a PDMS layer (Figure 1). Preliminary results show a limit of detection around 1% of CO2 and selectivity for CO2 versus N2. Each measure-regeneration cycle takes less than a minute. The process is reversible and the sensor surface is stable for more than one month.
DescripciónResumen del trabajo presentado al VIII International Congress on Analytical Nanoscience and Nanotechnology, celebrado en Barcelona (España) del 3 al 5 de julio de 2017.
URIhttp://hdl.handle.net/10261/161286
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