Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection

Yao Zhao; Niancai Peng; Xueyong Wei; Manoj Sharma; Jiuhong Wang; Zhuangde Jiang

doi:10.1109/NEMS.2015.7147432

Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection

Yao Zhao
, Niancai Peng
, Xueyong Wei
, Manoj Sharma
, Jiuhong Wang
, Zhuangde Jiang

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

7 Citations (Scopus)

Abstract

In this work, high quality 3-mercaptopropionic acid (MPA) capped ZnS:Mn/ZnS quantum dots (QDs) have been synthesized via chemical precipitation approach. Structure analysis done by XRD and TEM shows that the prepared QDs are mono-dispersed with with a size distribution of 3-5nm. Optical features of the core/shell QDs have been characterized by UV-Visible spectroscopy and photoluminescence spectrometer (PL). The addition of folic acid (FA) to ZnS:Mn/ZnS QDs solution leads to a linear range of quenching of PL with the concentration of FA from 2μM/L to 60μM/L. It thus provides an opportunity to apply MPA capped ZnS:Mn/ZnS QDs as a sensitive fluorescence probe for FA detection. The detection limit is 0.48μM/L. The fluorescence quenching mechanism caused by FA was also studied.

Original language	English
Title of host publication	2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	306-309
Number of pages	4
ISBN (Electronic)	9781467366953
DOIs	https://doi.org/10.1109/NEMS.2015.7147432
Publication status	Published - 1 Jul 2015
Externally published	Yes
Event	IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2015 - Xi'an, China Duration: 7 Apr 2015 → 11 Apr 2015 Conference number: 10th https://ieeexplore.ieee.org/xpl/conhome/7132046/proceeding (Proceedings)

Conference

Conference	IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2015
Abbreviated title	NEMS 2015
Country/Territory	China
City	Xi'an
Period	7/04/15 → 11/04/15
Internet address	https://ieeexplore.ieee.org/xpl/conhome/7132046/proceeding (Proceedings)

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10.1109/NEMS.2015.7147432

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Zhao, Y., Peng, N., Wei, X., Sharma, M., Wang, J., & Jiang, Z. (2015). Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection. In 2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015 (pp. 306-309). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/NEMS.2015.7147432

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title = "Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection",

abstract = "In this work, high quality 3-mercaptopropionic acid (MPA) capped ZnS:Mn/ZnS quantum dots (QDs) have been synthesized via chemical precipitation approach. Structure analysis done by XRD and TEM shows that the prepared QDs are mono-dispersed with with a size distribution of 3-5nm. Optical features of the core/shell QDs have been characterized by UV-Visible spectroscopy and photoluminescence spectrometer (PL). The addition of folic acid (FA) to ZnS:Mn/ZnS QDs solution leads to a linear range of quenching of PL with the concentration of FA from 2μM/L to 60μM/L. It thus provides an opportunity to apply MPA capped ZnS:Mn/ZnS QDs as a sensitive fluorescence probe for FA detection. The detection limit is 0.48μM/L. The fluorescence quenching mechanism caused by FA was also studied.",

author = "Yao Zhao and Niancai Peng and Xueyong Wei and Manoj Sharma and Jiuhong Wang and Zhuangde Jiang",

note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2015, NEMS 2015 ; Conference date: 07-04-2015 Through 11-04-2015",

year = "2015",

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doi = "10.1109/NEMS.2015.7147432",

language = "English",

pages = "306--309",

booktitle = "2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

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Zhao, Y, Peng, N, Wei, X, Sharma, M, Wang, J & Jiang, Z 2015, Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection. in 2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015. IEEE, Institute of Electrical and Electronics Engineers, pp. 306-309, IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2015, Xi'an, China, 7/04/15. https://doi.org/10.1109/NEMS.2015.7147432

Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection. / Zhao, Yao; Peng, Niancai; Wei, Xueyong et al.
2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015. IEEE, Institute of Electrical and Electronics Engineers, 2015. p. 306-309.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Other

TY - GEN

T1 - Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection

AU - Zhao, Yao

AU - Peng, Niancai

AU - Wei, Xueyong

AU - Sharma, Manoj

AU - Wang, Jiuhong

AU - Jiang, Zhuangde

N1 - Conference code: 10th

PY - 2015/7/1

Y1 - 2015/7/1

N2 - In this work, high quality 3-mercaptopropionic acid (MPA) capped ZnS:Mn/ZnS quantum dots (QDs) have been synthesized via chemical precipitation approach. Structure analysis done by XRD and TEM shows that the prepared QDs are mono-dispersed with with a size distribution of 3-5nm. Optical features of the core/shell QDs have been characterized by UV-Visible spectroscopy and photoluminescence spectrometer (PL). The addition of folic acid (FA) to ZnS:Mn/ZnS QDs solution leads to a linear range of quenching of PL with the concentration of FA from 2μM/L to 60μM/L. It thus provides an opportunity to apply MPA capped ZnS:Mn/ZnS QDs as a sensitive fluorescence probe for FA detection. The detection limit is 0.48μM/L. The fluorescence quenching mechanism caused by FA was also studied.

AB - In this work, high quality 3-mercaptopropionic acid (MPA) capped ZnS:Mn/ZnS quantum dots (QDs) have been synthesized via chemical precipitation approach. Structure analysis done by XRD and TEM shows that the prepared QDs are mono-dispersed with with a size distribution of 3-5nm. Optical features of the core/shell QDs have been characterized by UV-Visible spectroscopy and photoluminescence spectrometer (PL). The addition of folic acid (FA) to ZnS:Mn/ZnS QDs solution leads to a linear range of quenching of PL with the concentration of FA from 2μM/L to 60μM/L. It thus provides an opportunity to apply MPA capped ZnS:Mn/ZnS QDs as a sensitive fluorescence probe for FA detection. The detection limit is 0.48μM/L. The fluorescence quenching mechanism caused by FA was also studied.

UR - https://www.scopus.com/pages/publications/84939501814

U2 - 10.1109/NEMS.2015.7147432

DO - 10.1109/NEMS.2015.7147432

M3 - Conference Paper

AN - SCOPUS:84939501814

SP - 306

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BT - 2015 IEEE 10th International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2015

PB - IEEE, Institute of Electrical and Electronics Engineers

T2 - IEEE International Conference on Nano/Micro Engineered and Molecular Systems (NEMS) 2015

Y2 - 7 April 2015 through 11 April 2015

ER -

Mercaptopropionic acid capped ZnS:Mn/ZnS core/shell quantum dots as fluorescence probe for folic acid detection

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