Absorption and fluorescence spectroscopy on a smartphone

Hossain, MA; Canning, J; Cook, K; Ast, S; Rutledge, PJ; Jamalipour, A

Absorption and fluorescence spectroscopy on a smartphone

Hossain, MA Canning, J

Cook, K

Ast, S Rutledge, PJ Jamalipour, A

Permalink

Publication Type:: Conference Proceeding
Citation:: Proceedings of SPIE - The International Society for Optical Engineering, 2015, 9655
Issue Date:: 2015-01-01

Closed Access

	Filename	Description	Size
	Absorptionandfluorescencespectroscopyonasmartphone.pdf	Published version	611.45 kB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Hossain, MA	en_US
dc.contributor.author	Canning, J https://orcid.org/0000-0001-8281-7783	en_US
dc.contributor.author	Cook, K https://orcid.org/0000-0001-6139-9586	en_US
dc.contributor.author	Ast, S	en_US
dc.contributor.author	Rutledge, PJ	en_US
dc.contributor.author	Jamalipour, A	en_US
dc.date.issued	2015-01-01	en_US
dc.identifier.citation	Proceedings of SPIE - The International Society for Optical Engineering, 2015, 9655	en_US
dc.identifier.isbn	9781628418651	en_US
dc.identifier.issn	0277-786X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/119732
dc.description.abstract	© 2015 Copyright SPIE. A self-powered smartphone-based field-portable "dual" spectrometer has been developed for both absorption and fluorescence measurements. The smartphone's existing flash LED has sufficient optical irradiance to undertake absorption measurements within a 3D-printed case containing a low cost nano-imprinted polymer diffraction grating. A UV (λ<inf>ex</inf> ∼ 370 nm) and VIS (λ<inf>ex</inf> ∼ 450 nm) LED are wired into the circuit of the flash LED to provide an excitation source for fluorescence measurements. Using a customized app on the smartphone, measurements of absorption and fluorescence spectra are demonstrated using pH-sensitive and Zn<sup>2+</sup>-responsive probes. Detection over a 300 nm span with 0.42 nm/pixel spectral resolution is demonstrated. Despite the low cost and small size of the portable spectrometer, the results compare well with bench top instruments.	en_US
dc.relation.ispartof	Proceedings of SPIE - The International Society for Optical Engineering	en_US
dc.relation.isbasedon	10.1117/12.2184354	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Absorption and fluorescence spectroscopy on a smartphone	en_US
dc.type	Conference Proceeding
utslib.citation.volume	9655	en_US
utslib.for	0205 Optical Physics	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	closed_access	*
pubs.publication-status	Published	en_US
pubs.volume	9655	en_US

Abstract:

© 2015 Copyright SPIE. A self-powered smartphone-based field-portable "dual" spectrometer has been developed for both absorption and fluorescence measurements. The smartphone's existing flash LED has sufficient optical irradiance to undertake absorption measurements within a 3D-printed case containing a low cost nano-imprinted polymer diffraction grating. A UV (λex ∼ 370 nm) and VIS (λex ∼ 450 nm) LED are wired into the circuit of the flash LED to provide an excitation source for fluorescence measurements. Using a customized app on the smartphone, measurements of absorption and fluorescence spectra are demonstrated using pH-sensitive and Zn²⁺-responsive probes. Detection over a 300 nm span with 0.42 nm/pixel spectral resolution is demonstrated. Despite the low cost and small size of the portable spectrometer, the results compare well with bench top instruments.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/119732