Related Experiment Video
Updated: May 31, 2026
10:27
Preparation of Highly Porous Coordination Polymer Coatings on Macroporous Polymer Monoliths for Enhanced Enrichment of Phosphopeptides
Published on: July 14, 2015
Continuous high-throughput phosphopeptide enrichment using microfluidic channels modified with aligned ZnO/TiO(2)
Zhongyuan He1, Qinghong Zhang, Hongzhi Wang
1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, People's Republic of China.
Biomedical Microdevices
|June 24, 2011
Summary
Researchers developed a novel microfluidic device using titanium dioxide-coated zinc oxide nanorods in a capillary microchannel for selective phosphopeptide enrichment. This high-throughput method offers enhanced selectivity and sensitivity for complex biological samples.
Area of Science:
- Materials Science
- Analytical Chemistry
- Biotechnology
Background:
- Phosphopeptide enrichment is crucial for proteomics.
- Existing methods face challenges in throughput and selectivity.
- Microfluidic devices offer potential for improved analytical techniques.
Purpose of the Study:
- To develop a novel microfluidic device for selective phosphopeptide enrichment.
- To utilize TiO(2)-coated ZnO nanorod arrays within a capillary microchannel.
- To achieve high-throughput and sensitive capture of phosphopeptides.
Main Methods:
- Fabrication of a capillary microchannel with ZnO nanorod arrays.
- Coating ZnO nanorods with TiO(2) sol via controlled flow duration.
- Implementation of continuous-flow operation for phosphopeptide capture and enrichment.
- Testing selectivity, sensitivity, and durability using tryptic protein digests.
Main Results:
- The modified capillary microchannel demonstrated effective phosphopeptide binding and enrichment.
- Continuous-flow operation enabled uninterrupted high-throughput processing.
- The device exhibited excellent selectivity, sensitivity, and durability.
- Successful enrichment of phosphopeptides from complex protein digests was achieved.
Conclusions:
- The TiO(2)-coated ZnO nanorod capillary microchannel is a promising platform for phosphopeptide enrichment.
- This microfluidic strategy facilitates rapid and high-throughput analysis of phosphopeptides.
- The developed device has significant potential for applications in proteomics and biomarker discovery.
