We present an approach to functionalise optical microring resonators as hybridisation platforms, using tip-mould reactive microcontact printing process. Derived from reactive microcontact printing using an ad hoc mould of polydimethylsiloxane (PDMS), the method functionalises single microring resonator with a target-specific capture agent. The authors report the functionalisation of silicon nitride (SiN) 200 μm diameter microring resonator with single-strand DNA and the hybridisation detection of 100 nM target analyte, while concurrently monitoring not-functionalised microring as a control sensor. Results show that the functionalisation approach permits to address single microring resonators with mutual distance lower than 100 μm with high precision, enabling a better integration of multiple spotting zones on the chip concerning traditional functionalisation procedures.

Tip-mould microcontact printing for functionalisation of optical microring resonator

Peserico N.;Castagna R.;Melloni A.
2018-01-01

Abstract

We present an approach to functionalise optical microring resonators as hybridisation platforms, using tip-mould reactive microcontact printing process. Derived from reactive microcontact printing using an ad hoc mould of polydimethylsiloxane (PDMS), the method functionalises single microring resonator with a target-specific capture agent. The authors report the functionalisation of silicon nitride (SiN) 200 μm diameter microring resonator with single-strand DNA and the hybridisation detection of 100 nM target analyte, while concurrently monitoring not-functionalised microring as a control sensor. Results show that the functionalisation approach permits to address single microring resonators with mutual distance lower than 100 μm with high precision, enabling a better integration of multiple spotting zones on the chip concerning traditional functionalisation procedures.
2018
DNA; molecular biophysics; biosensors; microsensors; optical resonators; microcavities; soft lithography; polymers; silicon compounds; integrated optics; optical sensors; micro-optics; tip-mould reactive microcontact printing; optical microring resonator; hybridisation platforms; polydimethylsiloxane; PDMS; target-specific capture agent; single-strand DNA; hybridisation detection; multiple spotting zones; chip; size 200 mum; SiN
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/1121834
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