Abstract

Specific fluorescent profiles were created by loading quantum-dot (Qdot) mixtures in liquid cores of monodispersed polymer microcapsules, which were used as colorimetric barcodes for small object identification. Since the emission intensities of Qdot-loaded liquid cores maintain a linear relation to the Qdot concentrations and the Qdots in the liquid cores with different emission peaks have no obvious interference, the colorimetric barcodes can be predefined by the compositions of Qdot mixtures. The colorimetric barcodes can be identified easily by recording the emission intensities of the encoded microcapsules at respective Qdot emission peaks with a simple and express algorithm, which are suitable to conduct high-throughput multiplexed assays by flow cytometer for biological screening applications.

© 2013 Optical Society of America

Droplet microfluidic generation of a million optical microparticle barcodes

Paul H. Dannenberg, Jie Wang, Yue Zhuo, Sangyeon Cho, Kwon-Hyeon Kim, and Seok-Hyun Yun
Opt. Express 29(23) 38109-38118 (2021)

Data detection algorithms for multiplexed quantum dot encoding

Kelly C. Goss, Geoff G. Messier, and Mike E. Potter
Opt. Express 20(5) 5762-5774 (2012)

Information coding and retrieving using fluorescent semiconductor nanocrystals for object identification

Shoude Chang, Ming Zhou, and Chander P. Grover
Opt. Express 12(1) 143-148 (2004)

Investigation of nanostructured hybrid organic/semiconductor quantum dots in thin film and spatial distribution of the emission

Hung-Ju Lin, François Flory, Judikael Le-Rouzo, and Cheng-Chung Lee
Appl. Opt. 53(4) A169-A174 (2014)

Demonstration of patterned polymer-stabilized cholesteric liquid crystal textures for anti-counterfeiting two-dimensional barcodes

Wen-Song Li, Yuan Shen, Zhi-Jie Chen, Qian Cui, Sen-Sen Li, and Lu-Jian Chen
Appl. Opt. 56(3) 601-606 (2017)