The University of Southampton
University of Southampton Institutional Repository

Laser direct-write for fabrication of three-dimensional paper-based devices

Laser direct-write for fabrication of three-dimensional paper-based devices
Laser direct-write for fabrication of three-dimensional paper-based devices
We report the use of a laser-based direct-write (LDW) technique that allows the design and fabrication of three-dimensional (3D) structures within a paper substrate that enables implementation of multi-step analytical assays via a 3D protocol. The technique is based on laser-induced photo-polymerisation, and through adjustment of the laser writing parameters such as the laser power and scan speed we can control the depths of hydrophobic barriers that are formed within a substrate which, when carefully designed and integrated, produce 3D flow paths. So far, we have successfully used this depth-variable patterning protocol for stacking and sealing of multi-layer substrates, for assembly of backing layers for two-dimensional (2D) lateral flow devices and finally for fabrication of 3D devices. Since the 3D flow paths can also be formed via a single laser-writing process by controlling the patterning parameters, this is a distinct improvement over other methods that require multiple complicated and repetitive assembly procedures. This technique is therefore suitable for cheap, rapid and large-scale fabrication of 3D paper-based microfluidic devices.
University of Southampton
He, Peijun
6faacea8-db2e-4bab-8198-3aa595724794
Katis, Ioannis
f92dfb8f-610d-4877-83f6-fd26a571df12
Eason, Robert
e38684c3-d18c-41b9-a4aa-def67283b020
Sones, Collin
9de9d8ee-d394-46a5-80b7-e341c0eed0a8
He, Peijun
6faacea8-db2e-4bab-8198-3aa595724794
Katis, Ioannis
f92dfb8f-610d-4877-83f6-fd26a571df12
Eason, Robert
e38684c3-d18c-41b9-a4aa-def67283b020
Sones, Collin
9de9d8ee-d394-46a5-80b7-e341c0eed0a8

He, Peijun, Katis, Ioannis, Eason, Robert and Sones, Collin (2016) Laser direct-write for fabrication of three-dimensional paper-based devices. University of Southampton doi:10.5258/SOTON/387247 [Dataset]

Record type: Dataset

Abstract

We report the use of a laser-based direct-write (LDW) technique that allows the design and fabrication of three-dimensional (3D) structures within a paper substrate that enables implementation of multi-step analytical assays via a 3D protocol. The technique is based on laser-induced photo-polymerisation, and through adjustment of the laser writing parameters such as the laser power and scan speed we can control the depths of hydrophobic barriers that are formed within a substrate which, when carefully designed and integrated, produce 3D flow paths. So far, we have successfully used this depth-variable patterning protocol for stacking and sealing of multi-layer substrates, for assembly of backing layers for two-dimensional (2D) lateral flow devices and finally for fabrication of 3D devices. Since the 3D flow paths can also be formed via a single laser-writing process by controlling the patterning parameters, this is a distinct improvement over other methods that require multiple complicated and repetitive assembly procedures. This technique is therefore suitable for cheap, rapid and large-scale fabrication of 3D paper-based microfluidic devices.

Other
Backing_20depth.xlsx - Dataset
Available under License Creative Commons Attribution.
Download (20kB)
Other
Volume_20sensitivity.xlsx - Dataset
Available under License Creative Commons Attribution.
Download (17kB)

More information

Published date: 2016
Organisations: Optoelectronics Research Centre, ORC Research, Faculty of Physical Sciences and Engineering
Projects:
Integrated Photonic Materials and Devices
Funded by: UNSPECIFIED (EP/J008052/1)
1 March 2012 to 29 February 2016
Laser-printable point-of-care sensors for low-cost medical diagnosis and disease monitoring
Funded by: UNSPECIFIED (EP/K023454/1)
1 May 2013 to 31 October 2014
Laser-based engineering of paper for manufacturing fluidic sensors: (Lab-flo)
Funded by: UNSPECIFIED (EP/N004388/1)
7 October 2015 to 6 October 2018

Identifiers

Local EPrints ID: 387247
URI: http://eprints.soton.ac.uk/id/eprint/387247
PURE UUID: 1a6f379e-3ec3-4afd-8135-5e88959f97e5
ORCID for Ioannis Katis: ORCID iD orcid.org/0000-0002-2016-557X
ORCID for Robert Eason: ORCID iD orcid.org/0000-0001-9704-2204

Catalogue record

Date deposited: 06 Oct 2016 15:57
Last modified: 06 Jun 2018 13:13

Export record

Altmetrics

Contributors

Creator: Peijun He
Creator: Ioannis Katis ORCID iD
Creator: Robert Eason ORCID iD
Creator: Collin Sones

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×