Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods

P. Lu; H. Zhang; T. Satoh; T. Ohkubo; A. Yamazaki; K. Takano; T. Kamiya; L. Zhu; Y. Huang; Z. Jiang; Yi Zheng; M. Yang; Y. Mi; Q. Ren; H. Shen

doi:10.1016/j.nimb.2011.05.009

Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods

P. Lu
, H. Zhang
, T. Satoh
, T. Ohkubo
, A. Yamazaki
, K. Takano
, T. Kamiya
, L. Zhu
, Y. Huang
, Z. Jiang
, Yi Zheng
, M. Yang
, Y. Mi
, Q. Ren
, H. Shen

Division of Medical Physics

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

The structural stability of water-soluble ZnO quantum dots (QDs) in oral epidermoid carcinoma (KB) cells was studied by the External Micro Proton Induced X-ray Emission (External Micro-PIXE) technique and the X-ray absorption fine structure (XAFS) measurement. The External Micro-PIXE and XAFS experiments were respectively performed at the JAEA and the Shanghai Synchrotron Radiation Facility. The elements' distributions were detected by the External Micro-PIXE technique. The XAFS method was applied to obtain information about zinc (Zn) K-edge spectra. The fits of the XAFS data showed that the Zn-O bond structure of water-soluble ZnO QDs was stable after being absorbed by KB cells. Its local structural parameters were almost identical with those of the standard wurtzite structure. Water-soluble ZnO QDs had good structural stability in KB cells.

Original language	English
Pages (from-to)	1940-1943
Number of pages	4
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	269
Issue number	17
DOIs	https://doi.org/10.1016/j.nimb.2011.05.009
State	Published - Sep 1 2011

Keywords

External Micro-PIXE
Quantum dots
Structural stability
Water-soluble ZnO
XAFS

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10.1016/j.nimb.2011.05.009

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Lu, P., Zhang, H., Satoh, T., Ohkubo, T., Yamazaki, A., Takano, K., Kamiya, T., Zhu, L., Huang, Y., Jiang, Z., Zheng, Y., Yang, M., Mi, Y., Ren, Q., & Shen, H. (2011). Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods. Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 269(17), 1940-1943. https://doi.org/10.1016/j.nimb.2011.05.009

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title = "Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods",

abstract = "The structural stability of water-soluble ZnO quantum dots (QDs) in oral epidermoid carcinoma (KB) cells was studied by the External Micro Proton Induced X-ray Emission (External Micro-PIXE) technique and the X-ray absorption fine structure (XAFS) measurement. The External Micro-PIXE and XAFS experiments were respectively performed at the JAEA and the Shanghai Synchrotron Radiation Facility. The elements' distributions were detected by the External Micro-PIXE technique. The XAFS method was applied to obtain information about zinc (Zn) K-edge spectra. The fits of the XAFS data showed that the Zn-O bond structure of water-soluble ZnO QDs was stable after being absorbed by KB cells. Its local structural parameters were almost identical with those of the standard wurtzite structure. Water-soluble ZnO QDs had good structural stability in KB cells.",

keywords = "External Micro-PIXE, Quantum dots, Structural stability, Water-soluble ZnO, XAFS",

author = "P. Lu and H. Zhang and T. Satoh and T. Ohkubo and A. Yamazaki and K. Takano and T. Kamiya and L. Zhu and Y. Huang and Z. Jiang and Yi Zheng and M. Yang and Y. Mi and Q. Ren and H. Shen",

year = "2011",

month = sep,

day = "1",

doi = "10.1016/j.nimb.2011.05.009",

language = "English",

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Lu, P, Zhang, H, Satoh, T, Ohkubo, T, Yamazaki, A, Takano, K, Kamiya, T, Zhu, L, Huang, Y, Jiang, Z, Zheng, Y, Yang, M, Mi, Y, Ren, Q & Shen, H 2011, 'Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, vol. 269, no. 17, pp. 1940-1943. https://doi.org/10.1016/j.nimb.2011.05.009

Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods. / Lu, P.; Zhang, H.; Satoh, T. et al.
In: Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, Vol. 269, No. 17, 01.09.2011, p. 1940-1943.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods

AU - Lu, P.

AU - Zhang, H.

AU - Satoh, T.

AU - Ohkubo, T.

AU - Yamazaki, A.

AU - Takano, K.

AU - Kamiya, T.

AU - Zhu, L.

AU - Huang, Y.

AU - Jiang, Z.

AU - Zheng, Yi

AU - Yang, M.

AU - Mi, Y.

AU - Ren, Q.

AU - Shen, H.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - The structural stability of water-soluble ZnO quantum dots (QDs) in oral epidermoid carcinoma (KB) cells was studied by the External Micro Proton Induced X-ray Emission (External Micro-PIXE) technique and the X-ray absorption fine structure (XAFS) measurement. The External Micro-PIXE and XAFS experiments were respectively performed at the JAEA and the Shanghai Synchrotron Radiation Facility. The elements' distributions were detected by the External Micro-PIXE technique. The XAFS method was applied to obtain information about zinc (Zn) K-edge spectra. The fits of the XAFS data showed that the Zn-O bond structure of water-soluble ZnO QDs was stable after being absorbed by KB cells. Its local structural parameters were almost identical with those of the standard wurtzite structure. Water-soluble ZnO QDs had good structural stability in KB cells.

AB - The structural stability of water-soluble ZnO quantum dots (QDs) in oral epidermoid carcinoma (KB) cells was studied by the External Micro Proton Induced X-ray Emission (External Micro-PIXE) technique and the X-ray absorption fine structure (XAFS) measurement. The External Micro-PIXE and XAFS experiments were respectively performed at the JAEA and the Shanghai Synchrotron Radiation Facility. The elements' distributions were detected by the External Micro-PIXE technique. The XAFS method was applied to obtain information about zinc (Zn) K-edge spectra. The fits of the XAFS data showed that the Zn-O bond structure of water-soluble ZnO QDs was stable after being absorbed by KB cells. Its local structural parameters were almost identical with those of the standard wurtzite structure. Water-soluble ZnO QDs had good structural stability in KB cells.

KW - External Micro-PIXE

KW - Quantum dots

KW - Structural stability

KW - Water-soluble ZnO

KW - XAFS

UR - https://www.scopus.com/pages/publications/79960020554

U2 - 10.1016/j.nimb.2011.05.009

DO - 10.1016/j.nimb.2011.05.009

M3 - Article

AN - SCOPUS:79960020554

SN - 0168-583X

VL - 269

SP - 1940

EP - 1943

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 17

ER -

Investigation on the stability of water-soluble ZnO quantum dots in KB cells by X-ray fluorescence and absorption methods

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