Single Nanoparticle Sizing Based on the Confined Glass Nanopore †

doi:10.7503/cjcu20190443

Chem. J. Chinese Universities ›› 2019, Vol. 40 ›› Issue (11): 2281.doi: 10.7503/cjcu20190443

• Analytical Chemistry • Previous Articles Next Articles

Single Nanoparticle Sizing Based on the Confined Glass Nanopore ^†

LU Simin¹,YU Rujia^1,^*(),LONG Yitao^2,^*()

^1. School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
^2. State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China

Received:2019-08-05 Online:2019-11-10 Published:2019-10-11
Contact: YU Rujia,LONG Yitao E-mail:yurujia@dcust.edu.cn;yitaolong@nju.edu.cn
Supported by:
? Supported by the National Natural Science Foundation of China(No.21834001) and the China Postdoctoral Science Foundation(21834001);The China Postdoctoral Science Foundation(2018M640349)

Abstract

Abstract:

An electrochemically analytical method based on the glass nanopore was proposed to determine the single CdSe/ZnS quantum dots(CdSe/ZnS QDs) with various sizes. Potential is focused near the tip of electrochemically confined nanopore, and CdSe/ZnS QDs with positive surface charge are driven out of the glass nanopore. In consequence, the positive surface charges of CdSe/ZnS QDs leads to the ionic current redistribution, which contributes to the increase in the ionic current. The difference of the increase in the ionic current is resulted from the difference of surface charges. The results reveal the capability of glass nanopore for the real-time single nanoparticle sizing.

Key words: Glass nanopore, Electrochemically confined effect, Single nanoparticle sizing, CdSe/ZnS quantum dots

CLC Number:

O657

TrendMD:

LU Simin, YU Rujia, LONG Yitao. Single Nanoparticle Sizing Based on the Confined Glass Nanopore ^†[J]. Chem. J. Chinese Universities, 2019, 40(11): 2281.

Figures/Tables 2

Fig.1 CdSe/ZnS quantum dots size analysis based on the electrochemically confined glass nanopore (A) Setup for glass nanopipette characterization of CdSe/ZnS quantum dots with various sizes; (B) TEM image of prepared electrochemically confined glass nanopore; finite element method simulation for biased potential drop(C) and velocity distribution(D) along the position of the electrochemically confined glass nanopore.

Fig.2 Signal analysis for CdSe/ZnS quantum dots sizing based on the electrochemically confined glass nanopore (A) Raw current traces of ionic current signals under the different biased potential of 600 mV(a), 700 mV(b) and 800 mV(c); (B) TEM characterization and two types of signals chosen from Fig.2(A), which is corresponding to the 20 nm(left) and 10 nm(right) CdSe/ZnS quantum dots, respectively; (C) interval time histogram, t1and t2 represent the durations caused by QDs with particle sizes of 20 and 10 nm, respectively; (D) ionic current histogram, I1 and I2 represent the ionic current increase caused by QDs with particle sizes of 20 and 10 nm, respectively.

References 28

[1]	Russel W. B., Saville D. A., Showalter W. R., Colloidal Disperisions, Cambridge University Press, New York, 1989
[2]	Bondoc L. L., Fitzpatrick S ., J. Ind., Microbiol. Biotechnol., 1998,20, 317— 322
[3]	McCormick H. W., J. Colloid Sci., 1964,19, 173
[4]	Dosramos J. G., Silebi C. A ., Abstracts of Papers of the American Chemical Society, 1989,198, 186
[5]	Malloy A., Carr B., Part. Part. Syst .Charact., 2006,23, 197— 204
[6]	Alberts B., Bray D., Lewis M., Raff M., Roberts K., Watson J. D., Molecular Biology of the Cell, Garland, New York, 1994
[7]	Henriquez R. R., Ito T., Sun L., Crooks R. M., Analyst, 2004,129, 478— 482
[8]	German S. R., Hurd T. S., White H. S., Mega T. L., ACS Nano, 2016,9, 7186— 7194
[9]	Ito T., Sun L., Crooks R. M ., Anal. Chem., 2003,75, 2399— 2460
[10]	Li Q., Ying Y. L., Liu S. C., Lin Y., Long Y. T ., ACS Sens., 2019,4, 1185— 1189
[11]	Li Q., Lin Y., Ying Y. L., Liu S. C., Long Y. T ., Sci. Sin. Chim., 2017,47(12), 1445— 1449
	( 李巧, 林瑶, 应佚伦, 刘少创, 龙亿涛 . 中国科学: 化学, 2017,47(12), 1445— 1449)
[12]	Lin Y., Ying Y. L., Gao R., Wang H. F., Long Y. T ., Acta Chim. Sinica, 2017,75(7), 675— 678
	( 林瑶, 应佚伦, 高瑞, 王慧峰, 龙亿涛 . 化学学报, 2017,75(7), 675— 678)
[13]	Saleh O. A., Sohn L. L., Nano Lett., 2003,3, 37— 38
[14]	Wharton J.E., Jin P., Sexton L. T., Horne L. P., Sherrill S. A., Mino W. K., Martin C. R ., Small, 2007,3, 1424— 1430
[15]	An R., Uram J. D., Yusko E. C., Ke K., Mayer M., Hunt A. ., J., Opt. Lett., 2008,33, 1153— 1155
[16]	Ying Y. L., Long Y. T ., Science China-Chemistry, 2017,60(9), 1187— 1190
[17]	Haywood D. G., Saha-Shah A., Baker L A., Jacobson S. C., Anal. Chem., 2015,87, 172— 187
[18]	Ozel R.E., Lohith A., Han W., Pourmand N ., RSC Adv., 2015,5, 52436— 52433
[19]	Ying Y. L., Hu Y. X., Gao R., Yu R. J., Gu Z., Lee L. P., Long Y. T., J. Am. Chem. Soc., 2018,140, 5385— 5392
[20]	Cai S. L., Sze J. Y. Y., Ivanov A. P., Edel J. B ., Nat. Commun., 2019,10, 1797
[21]	Gao R., Ying Y. L., Li Y. J., Hu Y. X., Yu R. J., Lin Y., Long Y. T ., Angew. Chem. Int. Ed., 2018,57, 1011— 1015
[22]	Sa N., Lan W. J., Shi W., Baker L. A., ACS Nano, 2013,7, 11272— 11282
[23]	Lan W. J., Kubeil C., Xiong J. W., Bund A., White H. S., . J. Phys. Chem. C., 2014,118, 2726— 2734
[24]	White H. S., Bund A ., Langmuir., 2008,24, 2212— 2218
[25]	Ying Y. L., Long Y. T., J. Am. Chem. Soc., 2019,141, 15720-15729
[26]	Yu Y.J., Lu S. M., Xu S. W., Li Y. J., Xu Q., Ying Y. L., Long Y. T ., Chem. Sci., 2019, Doi: 10.1039/C9SC03260F
[27]	Chu H., Hao R., Fan Y. S., Edwards M. A., Gao H. F., Zhang B ., Langmuir, 2019,35, 7180— 7190
[28]	German S. R., Hurd T. S., White H. S., Mega T. L ., ACS Nano, 2015,9, 7186— 7194

Single Nanoparticle Sizing Based on the Confined Glass Nanopore ^†

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 2

References 28

Related Articles 1

Recommended Articles

Metrics

Comments