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Zhang Q, Guo Z, Luo F, Xiao H, Liu W, Fan L, Cao C. Model, Simulation, and Experiments on Moving Exchange Boundary via Ligand and Quantum Dots in Chip Electrophoresis. Anal Chem 2021; 93:5360-5364. [PMID: 33754711 DOI: 10.1021/acs.analchem.1c00242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Herein, the quench model of the moving exchange boundary (MEB) was first created via a ligand of 5,5'-dithiobis(2-nitro-benzoic acid) (DTNB) and group of 3-mercaptopropionic acid (MPA) capped on QDs, and then the recovery model was formed via MPA and 2-nitro-5-thiobenzoic acid (TNB) capped on QDs. The theory on MEB dynamics and width was developed based on the two reversible models, the simulation was conducted for the illumination of MEB, and the protocol was described for the MEB runs. The experiments revealed that (i) the quench model could be created via DTNB and MPA capped on QDs and the recovery one could be in situ formed via MPA and TNB capped on QDs, showing the feasibility of MEB models; (ii) the simulations on MEB dynamics and width were in coincidence with the theoretic predictions, showing the validity of two models; and (iii) the experiments demonstrated the validity of models, predictions, and simulations. The models and theory have potential for development of a biosensor, nanoparticle characterization, separation science, and an affinity assay of ligand-QDs.
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Affiliation(s)
- Qiang Zhang
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Zehua Guo
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fang Luo
- School of Life Science and Biotechnology, State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hua Xiao
- School of Life Science and Biotechnology, State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Weiwen Liu
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liuyin Fan
- Student Innovation Center, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Chengxi Cao
- Department of Instrument Science and Engineering, School of Electronic Information & Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.,School of Life Science and Biotechnology, State Key Laboratory of Microbial Metabolism, Shanghai Jiao Tong University, Shanghai 200240, China.,Shanghai Sixth People's Hospital, Shanghai Jiao Tong University, Shanghai 200240, China
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Kim B, Hong D, Chang WV. EDTA and pH-sensitive crosslinking polymerization of acrylic acid, 2-acrylamidoglycolic acid, and 2-acrylamide-2-methyl-1-propanesulfonic acid. J Appl Polym Sci 2014. [DOI: 10.1002/app.41026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Byungsoo Kim
- Mork Family Department of Chemical Engineering and Materials Science; University of Southern California; Los Angeles California 90089
| | - Daesun Hong
- Department of Chemical Engineering; Dankook University; Jukjeon-Dong Yongin City Gyeonggi-Do 448-701 Republic of Korea
| | - Wenji V. Chang
- Mork Family Department of Chemical Engineering and Materials Science; University of Southern California; Los Angeles California 90089
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