Colloidal Magnetically Assembled Photonic Crystals and Ionic Strength Sensing†

doi:10.7503/cjcu20160486

Chem. J. Chinese Universities ›› 2017, Vol. 38 ›› Issue (3): 479.doi: 10.7503/cjcu20160486

• Physical Chemistry • Previous Articles Next Articles

Colloidal Magnetically Assembled Photonic Crystals and Ionic Strength Sensing^†

YOU Aimei, CAO Yuhua^*(), CAO Guangqun

The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China

Received:2016-07-08 Online:2017-03-10 Published:2017-02-24
Contact: CAO Yuhua E-mail:yuhuacao64@gmail.com
Supported by:
† Supported by the National Natural Science Foundation of China(Nos.21405133, 21774056) and the Postgraduate Innovation Project of Jiangsu Province, China(No.KYLX16_0786).

Abstract

Abstract:

Magnetic composite nanoparticles(MCNPs) with magnetic core and polymers shell were prepared via miniemulsion polymerization technique. As the assembling blocks, MCNPs were constructed into colloidal magnetically assembled photonic crystals(CMA-PCs) with the assistance of a magnetic field. The characterization results of TEM and SEM show that MCNPs have uniform spherical morphology, a distinct core-shell structure and good monodispersity. The average diameter of MCNPs was 112 nm, the shell of MCNPs was about 10 nm in thickness. The diffraction color of CMA-PCs changed from orange to purple, the reflection wavelength shifted from 607 nm to 434 nm as the ionic strength increased from 0.03 mmol/L to 0.75 mmol/L, with response time less than 10 s. As a chemical sensor, CMA-PCs have the advantages of convenient, sensitive and naked eye visual detection, and could be applied in the semi-quantitative detection of ionic strength.

Key words: Magnetic composite nanoparticles, Colloidal magnetically assembled photonic crystals, Ionic strength

CLC Number:

O648

TrendMD:

YOU Aimei, CAO Yuhua, CAO Guangqun. Colloidal Magnetically Assembled Photonic Crystals and Ionic Strength Sensing^†[J]. Chem. J. Chinese Universities, 2017, 38(3): 479.

Figures/Tables 4

Fig.1 TEM image(A), SEM image(B), FTIR spectrum(C) and magnetization curve(D) of MCNPs

Fig.2 Digital photos of CMA-PCs assembled under different magnet intensities (A)—(E) The distances between CMA-PCs and NdFeB magnet are 0—1 cm from left to right.

Fig.3 Digital photos of the typical diffraction colors(A—E) and reflection spectra of CMA-PCs with adding 0.01 mmol/L NaCl solution(F) (A) Blank MCNPs; (B) blank CMA-PCs; (C) 6 μL NaCl solution; (D) 54 μL NaCl solution; (E) 150 μL NaCl solution.

Fig.4 Electrolytes-induced Δλ of CMA-PCs vs. the IS of different electrolytes

References 19

[1]	Wang J. Y., Zhou M., Gao J. P., Polymer Bulletin, 2006, 11, 44—51
	(王建颖, 周谧, 高建平高分子通报, 2006, 11, 44—51)
[2]	Wang Q. H., Xue M., Wang F. Y., Yan Z. Q., Xue F., Chem. J. Chinese Universities, 2014, 35(11),2297—2302
	(王秋鸿, 薛敏, 王丰彦, 阎泽群, 薛飞. 高等学校化学学报, 2014, 35(11), 2297—2302)
[3]	Ge J. P., Yin Y. D., Angew. Chem. Int. Ed., 2011, 50, 1492—1522
[4]	Wang L. B., Wang J. X., Song Y. L., Acta Polymerica Sinica, 2012, 10, 1118—1127
	(王利彬, 王京霞, 宋延林高分子学报, 2012, 10, 1118—1127)
[5]	Yang Z. K., Zhang X. D., Shi D. J., Chen M. Q., Liu S. R., Chem. J. Chinese Universities, 2016, 37(1), 37—42
	(杨兆昆, 张晓栋, 施冬健, 陈明清, 刘士荣. 高等学校化学学报, 2016, 37(1), 37—42)
[6]	Fenzl C., Hirsch T., Wolfbeis O. S., Angew. Chem. Int. Ed., 2014, 53, 3318—3335
[7]	Ozln G. A., Arsenault A. C., Materials Today, 2008, 11, 44—51
[8]	Lee H. S., Shim T. S., Hwang H., Yang S. M., Kim S. H., Chem. Mater., 2013, 25, 2684—2690
[9]	Liu Z. F., Zhang Q. H., Wang H. Z., Li Y. G., Chem. Commun., 2011, 47, 12801—12803
[10]	Ding H. B., Cheng Y., Gu H. C., Zhao Y. L., Wang B. P., Gu Z. Z., Nanoscale,2013, 5, 11572—11576
[11]	Kim B. E., Kang C., Baek H., Hwang K., Kwak D., Lee E., Kang Y., Thomas E. L., Adv. Funct. Mater., 2010, 20, 1728—1732
[12]	He L., Wang M. S., Ge J. P., Yin Y. D., Acc. Chem. Res., 2012, 45, 1431—1440
[13]	Xu D., Duan H. B., Lu C. H., Zhang D. P., J. Magn. Mater. Devices, 2015, 46, 74—79
	(徐丹, 段海宝, 陆春华, 张敦谱磁性材料及器件, 2015, 46, 74—79)
[14]	Zhang C.C., Wen B., Dong Y. X., Hao L. L., Chemical Industry and Engineering Process, 2015, 34, 1913—1918
	(张超灿, 文斌, 董一笑, 昊立力化工进展, 2015, 34, 1913—1918)
[15]	Lee K., Asher S. A., J. Am. Chem. Soc., 2000, 122, 9534—9537
[16]	Fenzl C., Wilhelm S., Hirsch T., Wolfbeis O. S., ACS Appl. Mater. Interfaces, 2013, 5, 173—178
[17]	You A. M., Cao Y. H., Cao G. Q., RSC. Adv., 2015, 5, 93945—93950
[18]	Zhu L. L., Cao Y. H., Cao G. Q., Chinese J. Anal. Chem., 2013, 11, 1724—1728
	(朱丽丽, 曹玉华, 曹光群分析化学, 2013, 11, 1724—1728)
[19]	Hu H. B., Chen C. L. Chen Q. W., J. Mater. Chem. C., 2013, 1, 6013—6030
	(Ed.:V, Z, K)

Colloidal Magnetically Assembled Photonic Crystals and Ionic Strength Sensing^†

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