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Fabrication of Magnetic Platforms for Micron-Scale Organization of Interconnected Neurons
Published on: July 14, 2021
Development of multistage magnetic deposition microscopy
Pulak Nath1, Joseph Strelnik, Amit Vasanji
1Department of Biomedical Engineering/ND-20, Lerner Research Institute, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, Ohio 44195, USA.
Analytical Chemistry
|December 6, 2008
Summary
A new Magnetic Deposition Microscopy (MDM) platform enhances cell capture efficiency and marker expression analysis. This improved MDM technology enables efficient screening of multiple disease conditions on a single platform.
Area of Science:
- Biotechnology
- Microscopy
- Cell Biology
Background:
- Previous Magnetic Deposition Microscopy (MDM) faced challenges with cell layer scouring at the air-liquid interface.
- Efficient and high-throughput cell analysis is crucial for disease screening.
Purpose of the Study:
- To develop an improved multistage Magnetic Deposition Microscopy (MDM) platform.
- To enhance cell capture efficiency and enable marker expression analysis.
- To facilitate the screening of multiple disease conditions using a single integrated platform.
Main Methods:
- Utilized enclosed microfabricated channels to prevent scouring.
- Implemented a four-zone magnet assembly for maximized capture efficiency.
- Developed a digital image processing protocol for measuring marker expression via pixel intensity.
Main Results:
- Achieved >99% capture efficiency for magnetically labeled Jurkat cells.
- Demonstrated reasonable throughputs of 10^3 cells/min.
- Showcased potential for sorting cells/particles by magnetic properties in successive zones.
Conclusions:
- The multistage MDM effectively overcomes previous limitations, offering high capture efficiency and throughput.
- The platform enables quantitative analysis of marker expression.
- This technology holds promise for multiplexed disease screening.
