Project TitleMethod for Performing and Analyzing Multiplexed Bead-Based Assays
Track Code2006-022
Short Description

Novel system and method for performing high throughput bead-based assays for multiple analytes simultaneously

#instrumentation #microscopy #healthcare #diagnostictool #researchtool #method


Northwestern researchers have developed a method for performing high throughput bead-based assays by establishing a fluorophore-based bar coding system for microbeads. While fluorescent labels are a staple of biological research, they cannot be used simultaneously in high throughput screens, as overlapping emission spectra can confound experimental results. To avoid this issue, most assays utilize a limited number of colored fluorophores at one time. The bar-coding method developed by Prof. Kelso's laboratory may improve how bead-based high throughput biological assays are performed. Each microbead is labeled with multiple flouorophores, generating a barcode that can be read and distinguished from those of other microbeads. This novel reagent can be combined with a complementary microscopy system and image analysis algorithm to analyze a high number of samples for multiple analytes of interest. By enabling collection of both qualitative and quantitative data, this new technology may be utilized in both high throughput diagnostic tests and cutting-edge research efforts.

TagsHEALTHCARE: Diagnostic Tool, instrumentation: microscopy, RESEARCH TOOL: method
Posted DateApr 23, 2015 4:13 PM


Abhishek Mathur

David M. Kelso*


  • Multiplexed suspension bead-based assays (proteome analysis, functional genomics etc.)
  • Fluorescent image analysis


  • Reduced imaging and analysis time
  • Full automation
  • High accuracy (<97%)


IP Status

Issued US patent 7,764,361

Marketing Contact

Michael Moore, PhD

Invention Manager

(p) (847) 491-4645