Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk

Flow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels t...

Full description

Bibliographic Details
Main Authors: Ana C. Fernandes, Carla M. Duarte, Filipe A. Cardoso, Ricardo Bexiga, Susana Cardoso, Paulo P. Freitas
Format: Article
Language:English
Published: MDPI AG 2014-08-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/8/15496
_version_ 1811184908627869696
author Ana C. Fernandes
Carla M. Duarte
Filipe A. Cardoso
Ricardo Bexiga
Susana Cardoso
Paulo P. Freitas
author_facet Ana C. Fernandes
Carla M. Duarte
Filipe A. Cardoso
Ricardo Bexiga
Susana Cardoso
Paulo P. Freitas
author_sort Ana C. Fernandes
collection DOAJ
description Flow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels to detect magnetically labelled cells. This work describes a platform for in-flow detection of magnetically labelled cells with a magneto-resistive based cell cytometer. In particular, we present an example for the validation of the platform as a magnetic counter that identifies and quantifies Streptococcus agalactiae in milk.
first_indexed 2024-04-11T13:20:10Z
format Article
id doaj.art-723071beb64340eea7caaf5c37938ee1
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-04-11T13:20:10Z
publishDate 2014-08-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-723071beb64340eea7caaf5c37938ee12022-12-22T04:22:14ZengMDPI AGSensors1424-82202014-08-01148154961552410.3390/s140815496s140815496Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in MilkAna C. Fernandes0Carla M. Duarte1Filipe A. Cardoso2Ricardo Bexiga3Susana Cardoso4Paulo P. Freitas5INESC–MN—Instituto de Engenharia de Sistemas e Computadores–Microsistemas e Nanotecnologias and IN—Institute of Nanoscience and Nanotechnology, Rua Alves Redol 9, 1000-029 Lisbon, PortugalINESC–MN—Instituto de Engenharia de Sistemas e Computadores–Microsistemas e Nanotecnologias and IN—Institute of Nanoscience and Nanotechnology, Rua Alves Redol 9, 1000-029 Lisbon, PortugalINESC–MN—Instituto de Engenharia de Sistemas e Computadores–Microsistemas e Nanotecnologias and IN—Institute of Nanoscience and Nanotechnology, Rua Alves Redol 9, 1000-029 Lisbon, PortugalCIISA, Veterinary Medicine Faculty, Technical University of Lisbon, Av. da Universidade Técnica, 1300-477 Lisbon, PortugalINESC–MN—Instituto de Engenharia de Sistemas e Computadores–Microsistemas e Nanotecnologias and IN—Institute of Nanoscience and Nanotechnology, Rua Alves Redol 9, 1000-029 Lisbon, PortugalINESC–MN—Instituto de Engenharia de Sistemas e Computadores–Microsistemas e Nanotecnologias and IN—Institute of Nanoscience and Nanotechnology, Rua Alves Redol 9, 1000-029 Lisbon, PortugalFlow cytometers have been optimized for use in portable platforms, where cell separation, identification and counting can be achieved in a compact and modular format. This feature can be combined with magnetic detection, where magnetoresistive sensors can be integrated within microfluidic channels to detect magnetically labelled cells. This work describes a platform for in-flow detection of magnetically labelled cells with a magneto-resistive based cell cytometer. In particular, we present an example for the validation of the platform as a magnetic counter that identifies and quantifies Streptococcus agalactiae in milk.http://www.mdpi.com/1424-8220/14/8/15496cytometermicrofluidicmagnetoresistive sensormilkStreptococcus agalactiae
spellingShingle Ana C. Fernandes
Carla M. Duarte
Filipe A. Cardoso
Ricardo Bexiga
Susana Cardoso
Paulo P. Freitas
Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
Sensors
cytometer
microfluidic
magnetoresistive sensor
milk
Streptococcus agalactiae
title Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
title_full Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
title_fullStr Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
title_full_unstemmed Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
title_short Lab-on-Chip Cytometry Based on Magnetoresistive Sensors for Bacteria Detection in Milk
title_sort lab on chip cytometry based on magnetoresistive sensors for bacteria detection in milk
topic cytometer
microfluidic
magnetoresistive sensor
milk
Streptococcus agalactiae
url http://www.mdpi.com/1424-8220/14/8/15496
work_keys_str_mv AT anacfernandes labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk
AT carlamduarte labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk
AT filipeacardoso labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk
AT ricardobexiga labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk
AT susanacardoso labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk
AT paulopfreitas labonchipcytometrybasedonmagnetoresistivesensorsforbacteriadetectioninmilk