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Transport Number

Transport Number

The transport number is the fraction of the total current carried by an ion in an electrolyte solution. It is defined as the ratio of the current carried by a specific ion to the total current flowing through the solution. The transport number, t, is central to understanding ionic mobility, which describes how fast an ion moves under the influence of an electric field. This link connects the physical behavior of ions in solution to the chemical processes that occur during electrochemical...

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Related Experiment Video

Updated: May 25, 2026

Competitive Genomic Screens of Barcoded Yeast Libraries

Competitive Genomic Screens of Barcoded Yeast Libraries

Published on: August 11, 2011

Digital Barcodes for High-Throughput Screening.

Ze Yang^1,2, Jingyi Chen³, Yao Xiao¹

¹College of Energy Engineering and State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310003, Zhejiang Province, People's Republic of China.

Chem & Bio Engineering

|February 20, 2025

Summary

This summary is machine-generated.

High-throughput screening methods using digital barcodes accelerate drug discovery and disease diagnosis. These techniques offer sensitive and accessible ways to analyze cells for various applications.

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Area of Science:

Biotechnology
Molecular Biology
Assay Development

Background:

High-throughput screening (HTS) is crucial for accelerating drug discovery, cancer therapy, and disease diagnosis.
Current HTS methods aim to reduce costs, reagent use, and labor.
Digital barcodes offer a sensitive and accessible approach to HTS.

Purpose of the Study:

To detail four high-throughput screening methods utilizing digital barcodes.
To explain the application of these methods in various scientific disciplines.
To summarize the advantages and disadvantages of each method.

Main Methods:

Discusses fluorescence, DNA, heavy metal, and nonmetal isotope barcodes for cell identification.
Detection methods include flow cytometry, DNA sequencing, mass cytometry, and mass spectrometry.
Key steps involve encoding information, labeling cells, simultaneous characterization, and individual cell identification.

Main Results:

Four distinct high-throughput screening methods with high sensitivity and accessibility are presented.
Applications for both in vitro and in vivo studies are detailed.
Advantages and disadvantages of each barcode-based screening method are summarized.

Conclusions:

Digital barcode-based high-throughput screening provides a powerful, accessible platform for multidisciplinary research.
These methods significantly accelerate progress in drug discovery, disease diagnosis, and cancer therapy.
The described techniques enhance efficiency and reduce resource consumption in biological screening.