Combined "dual" absorption and fluorescence smartphone spectrometers

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

Combined "dual" absorption and fluorescence smartphone spectrometers

Hossain, MA Canning, J

Ast, S Cook, K

Rutledge, PJ Jamalipour, A

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Publication Type:: Journal Article
Citation:: Optics Letters, 2015, 40 (8), pp. 1737 - 1740
Issue Date:: 2015-01-01

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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	Ast, S	en_US
dc.contributor.author	Cook, K https://orcid.org/0000-0001-6139-9586	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	Optics Letters, 2015, 40 (8), pp. 1737 - 1740	en_US
dc.identifier.issn	0146-9592	en_US
dc.identifier.uri	http://hdl.handle.net/10453/118661
dc.description.abstract	© 2015 Optical Society of America. A combined "dual" absorption and fluorescence smartphone spectrometer is demonstrated. The optical sources used in the system are the white flash LED of the smartphone and an orthogonally positioned and interchangeable UV (λex= 370 nm) and blue (λex= 450 nm) LED. The dispersive element is a low-cost, nano-imprinted diffraction grating coated with Au. Detection over a 300 nm span with 0.42 nm/pixel resolution was carried out with the camera CMOS chip. By integrating the blue and UV excitation sources into the white LED circuitry, the entire system is selfcontained within a 3D printed case and powered from the smartphone battery; the design can be scaled to add further excitation sources. Using a customized app, acquisition of absorption and fluorescence spectra are demonstrated using a blue-absorbing and green-emitting pH-sensitive amino-naphthalimide-based fluorescent probe and a UV-absorbing and blue-emitting Zn2+-sensitive fluoro-ionophore.	en_US
dc.relation.ispartof	Optics Letters	en_US
dc.relation.isbasedon	10.1364/OL.40.001737	en_US
dc.rights	© 2015 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.	en_US
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject.classification	Optics	en_US
dc.title	Combined "dual" absorption and fluorescence smartphone spectrometers	en_US
dc.type	Journal Article
utslib.citation.volume	8	en_US
utslib.citation.volume	40	en_US
utslib.for	0205 Optical Physics	en_US
utslib.for	0906 Electrical and Electronic Engineering	en_US
utslib.for	0206 Quantum 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.issue	8	en_US
pubs.publication-status	Published	en_US
pubs.volume	40	en_US

Abstract:

© 2015 Optical Society of America. A combined "dual" absorption and fluorescence smartphone spectrometer is demonstrated. The optical sources used in the system are the white flash LED of the smartphone and an orthogonally positioned and interchangeable UV (λex= 370 nm) and blue (λex= 450 nm) LED. The dispersive element is a low-cost, nano-imprinted diffraction grating coated with Au. Detection over a 300 nm span with 0.42 nm/pixel resolution was carried out with the camera CMOS chip. By integrating the blue and UV excitation sources into the white LED circuitry, the entire system is selfcontained within a 3D printed case and powered from the smartphone battery; the design can be scaled to add further excitation sources. Using a customized app, acquisition of absorption and fluorescence spectra are demonstrated using a blue-absorbing and green-emitting pH-sensitive amino-naphthalimide-based fluorescent probe and a UV-absorbing and blue-emitting Zn2+-sensitive fluoro-ionophore.

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http://hdl.handle.net/10453/118661