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Rare earth-doped glass microbarcodes
Matthew J Dejneka1, Alexander Streltsov, Santona Pal
1Science and Technology Division, Corning Incorporated, Corning, NY 14831, USA. dejnekamj@corning.com
Summary
Researchers developed tiny glass identification tags using fluorescent materials. These microbarcodes are easily read with a UV lamp and microscope, enabling advanced biotechnology and security applications.
Area of Science:
- Materials Science
- Biotechnology
- Analytical Chemistry
Background:
- Ultraminiaturized identification tags are crucial for advanced biotechnology and security.
- Existing identification methods may lack the required multiplexing capabilities or durability.
Purpose of the Study:
- To develop and characterize micrometer-sized glass barcodes for identification and encoding.
- To demonstrate the utility of these microbarcodes in a DNA hybridization assay.
Main Methods:
- Fabrication of micrometer-sized glass barcodes using rare earth-doped glasses.
- Characterization of fluorescent properties (narrow emission bands, high quantum efficiency).
- Demonstration of a model DNA hybridization assay using the microbarcodes.
Main Results:
- Successfully created glass microbarcodes with distinct fluorescent patterns.
- Demonstrated reliable identification using UV lamp and optical microscopy.
- Achieved over one million unique combinations for multiplexed applications.
Conclusions:
- Rare earth-doped glass microbarcodes offer a robust and highly scalable solution for identification and encoding.
- These microbarcodes are suitable for multiplexed bioassays and general encoding due to their unique properties and vast combinatorial potential.