Mini-FlatScope: A Miniaturized Lensless Microscope for Neural Recording in Freely-Behaving Mice

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dc.contributor.advisorRobinson, Jacob T.
dc.creatorYan, Dong
dc.date.accessioned2022-11-09T19:25:45Z
dc.date.created2022-12
dc.date.issued2022-10-18
dc.date.submittedDecember 2022
dc.date.updated2022-11-09T19:25:45Z
dc.description.abstractOptical neural recording is recognized among all neural recording methods for its high resolution, large field of view (FOV) and low invasiveness. An ideal neural recording device would enable a resolution sufficiently high to identify the activity of each individual neuron, a FOV sufficiently large to cover all neurons within the cortex region of interest for a certain study, and a form factor sufficiently small to allow the studied animal to freely behave. Realizing that the trade-off between size and weight, resolution, and FOV of lens-based microscopes prevents the possibility to simultaneously achieve cellular resolution and large FOV with a small and lightweight lens-based microscope, our lab developed a lens-less microscope, “Bio-FlatScope”. By replacing lenses with a phase-shifting mask and image reconstruction algorithms, we demonstrated large FOV, cellular-resolution fluorescence imaging of fixed biological samples, as well as in vivo imaging of stimulus-evoked calcium activity from neuron clusters in the cortex of head-fixed mice. In this thesis, we show an upgraded version of Bio-FlatScope, termed “MiniFlatScope”, with an integrated illumination module, further decreased form factor, and a finer reconstruction algorithm. We demonstrate near-cellular resolution and large FOV in a resolution test target and fixed biological samples, and show the ability of this prototype to be carried by a mouse, enabling the future in vivo behavioral study in freely-behaving mice.
dc.embargo.lift2023-12-01
dc.embargo.terms2023-12-01
dc.format.mimetypeapplication/pdf
dc.identifier.citationYan, Dong. "Mini-FlatScope: A Miniaturized Lensless Microscope for Neural Recording in Freely-Behaving Mice." (2022) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/113881">https://hdl.handle.net/1911/113881</a>.
dc.identifier.urihttps://hdl.handle.net/1911/113881
dc.language.isoeng
dc.rightsCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.
dc.subjectNeuroengineering
dc.subjectCalcium imaging
dc.subjectLensless imaging
dc.subjectComputational imaging
dc.titleMini-FlatScope: A Miniaturized Lensless Microscope for Neural Recording in Freely-Behaving Mice
dc.typeThesis
dc.type.materialText
thesis.degree.departmentElectrical Engineering
thesis.degree.disciplineEngineering
thesis.degree.grantorRice University
thesis.degree.levelMasters
thesis.degree.nameMaster of Science
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