Single Cell Capture

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Single bacterial spore Single bacterial spore detection detection with magnetoelastic particle with magnetoelastic particle sensors sensors on a microfluidic platform on a microfluidic platform Auburn University Auburn University Detection and Food Detection and Food Safety Center Safety Center J.W. Hong J.W. Hong

description

Capture of a single cell on a microfluidic chip.

Transcript of Single Cell Capture

Page 1: Single Cell Capture

Single bacterial spore detection Single bacterial spore detection with magnetoelastic particle sensors with magnetoelastic particle sensors

on a microfluidic platformon a microfluidic platformAuburn University Detection and Auburn University Detection and

Food Safety CenterFood Safety CenterJ.W. HongJ.W. Hong

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Chip Design – Top ViewChip Design – Top View

Unit: [um]Unit: [um]

Fluidic channels for sample loadingFluidic channels for sample loadingFluidic channels for sensor loading Fluidic channels for sensor loading Control channels Control channels

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Top View (Enlarged)Top View (Enlarged)

Unit: [um]Unit: [um]

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3D View3D View

Fluidic channels for sample loadingFluidic channels for sample loadingFluidic channels for sensor loading Fluidic channels for sensor loading Control channels Control channels

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3D View (Enlarged)3D View (Enlarged)

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Multilayer Soft LithographyMultilayer Soft Lithography

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Pneumatic Controlled ValvesPneumatic Controlled Valves

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Valve ActuationValve Actuation

Valve actuation pressure: < 3.5 psiValve actuation pressure: < 3.5 psi

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Fluidic channels for sample loadingFluidic channels for sample loadingFluidic channels for sensor loading Fluidic channels for sensor loading Control channels Control channels

Chip Operation with Food DyesChip Operation with Food Dyes

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Fluoresbrite YG 2.0-um microspheres (Polysciences, Inc.)Fluoresbrite YG 2.0-um microspheres (Polysciences, Inc.)

Chip Operation Chip Operation with Fluorescent Microsphereswith Fluorescent Microspheres

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Sensor LoadingSensor Loading

A particle sensor in the chamberA particle sensor in the chamber

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Spore CaptureSpore Capture

2um-fluorescent microspheres

Particle sensor