SF Bay Area Nanotechnology Council

IEEE

[UPDATE – NOW VIRTUAL!] June 9th, 2020: Quantitative Plasmonic Sensing with Single-Chip Inkjet Dispense Surface Enhanced Raman Spectroscopy (ID-SERS)

SFBA Nanotechnology Council is pleased to announce our first online seminar – and it’s free!

We’d also like to take a moment to appreciate our community – the Council has earned the 2019 IEEE Outstanding Chapter Santa Clara Valley, as well as the Nanotechnology Council Outstanding Chapter title worldwide. Please see the Awards page for details.  Thank you all for your support!

Now onto the talk!

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Quantitative Plasmonic Sensing with Single-Chip Inkjet Dispense Surface Enhanced Raman Spectroscopy (ID-SERS)

Dr. Fausto D’Apuzzo, Optical Scientist, HP Labs

Tues June 9

Noon-1:30PM Pacific Time, Virtual Meeting via Zoom

Register Here ! (Note: FREE to attend, but limited to 100 attendees! Registration ends at 10AM Pacific Time June 2nd.)

drfaustoplasmonicsensing

ABSTRACT

In this talk, I will present our Laboratory work on highly-quantitative plasmonic sensing based on Surface Enhanced Raman Spectroscopy (SERS). I will first describe our nano-imprinted SERS substrate architecture and performance. Then I will show how inkjet dispensing can be used in conjunction with SERS to encode each sensor with a calibration pattern of microdroplets (~30 pico-liters), with the aim of locally calibrating sensor performance. This way, we demonstrate that Measurement Uncertainty of the SERS signal can be reduced below 2%, which to our knowledge, is a new record for plasmonic sensing platform. Furthermore, the use of inkjet dispensing in combination with Raman mapping improves assay throughput (100-fold) and reduces sample volume consumption (105-fold) in an automated and reproducible fashion. Since this approach overcomes important practical hurdles, we believe that this work reignites interest in the potential commercialization of plasmonic-based chemical sensors.

Recent paper for reference:  A Generalizable Single-Chip Calibration Method for Highly Quantitative SERS via Inkjet Dispense.

 

SPEAKER BIOGRAPHY

drfaustoheadshot

Dr. Fausto D’Apuzzo is Optical Scientist at HP Labs, working on the Life Science team. His research interests are in optics systems, plasmonics and metamaterials for bio-sensing, with a focus on Surface Enhanced Raman Spectroscopy (SERS). He started investigating plasmonic systems since his master (2011) and PhD at the University of Rome “Sapienza”, before holding a postdoc position at L. Berkeley National Labs (LBNL) studying 2D plasmonic systems with Synchrotron Nano-Spectroscopy. He interned as an Optical Engineer at ACAMP (Alberta, Canada) before joining HP Labs (2018-present) where he is developing plasmonic sensing systems for quantitative chemical analysis.

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