Home

Citation: WU Xiuming, JIN Luyi, XU Yi, WANG Guangli. Enhanced Fluorescence of Cd S Quantum Dots by Cadmium (Ⅱ)-Cysteine and Its Application in Ion Detection[J]. Chinese Journal of Applied Chemistry, ;2015, 32(8): 969-976. doi: 10.11944/j.issn.1000-0518.2015.08.140418 shu

Enhanced Fluorescence of Cd S Quantum Dots by Cadmium (Ⅱ)-Cysteine and Its Application in Ion Detection

1.
The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China

Corresponding author: WANG Guangli,
Received Date: 9 December 2014
Available Online: 28 January 2015
Fund Project: 国家自然科学基金项目(21275065,21005031) (21275065,21005031)

CdS quantum dots capped by citrate (Cit-Cd S QDs) were synthesized in aqueous solution.TEM analysis indicates that the Cit-Cd S QDs are well-dispered with the diameter of 4 to 6 nm.The influence of silver (Ⅰ),cadmium (Ⅱ),thioglycolic acid,cysteine and the complexes formed by silver (Ⅰ)/cadmium (Ⅱ) with the thiol compounds (thioglycolic acid or cysteine) on the fluorescence of Cit-CdS QDs was investigated.All above modifiers can enhance the fluorescence intensity of Cit-CdS QDs.The complexes above have much greater fluorescence enhancement effect than that of the solely metal ions or thiol compounds.In addition,the CdS QDs modified by the complexes also have much higher sensitivity for copper (Ⅱ) sensing.Based on this phenomenon,a highly sensitive and selective fluorescence probe for Cu²⁺ was developed with a wide range of 1.0×10^-8~1.0×10^-6mol/L and a low detection limit of 1.0×10^-9mol/L.It may open up new opportunity for the synthesis and application of complex modified quantum dots in analytical chemistry.
- quantum dots,
- fluorescence,
- copper (Ⅱ) ion,
- sensor,
- complex
1. [1]
  Xiao SANG , Qi LIU , Jianping LANG . Synthesis, structure, and fluorescence properties of Zn(Ⅱ) coordination polymers containing tetra-alkenylpyridine ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2124-2132. doi: 10.11862/CJIC.20240158
2. [2]
  Hong LI , Xiaoying DING , Cihang LIU , Jinghan ZHANG , Yanying RAO . Detection of iron and copper ions based on gold nanorod etching colorimetry. Chinese Journal of Inorganic Chemistry, 2024, 40(5): 953-962. doi: 10.11862/CJIC.20230370
3. [3]
  Miaomiao He , Zhiqing Ge , Qiang Zhou , Jiaqing He , Hong Gong , Lingling Li , Pingping Zhu , Wei Shao . Exploring the Fascinating Realm of Quantum Dots. University Chemistry, 2024, 39(6): 231-237. doi: 10.3866/PKU.DXHX202310040
4. [4]
  Yu SU , Xinlian FAN , Yao YIN , Lin WANG . From synthesis to application: Development and prospects of InP quantum dots. Chinese Journal of Inorganic Chemistry, 2024, 40(11): 2105-2123. doi: 10.11862/CJIC.20240126
5. [5]
  Zeyu XU , Anlei DANG , Bihua DENG , Xiaoxin ZUO , Yu LU , Ping YANG , Wenzhu YIN . Evaluation of the efficacy of graphene oxide quantum dots as an ovalbumin delivery platform and adjuvant for immune enhancement. Chinese Journal of Inorganic Chemistry, 2024, 40(6): 1065-1078. doi: 10.11862/CJIC.20240099
6. [6]
  Xinting XIONG , Zhiqiang XIONG , Panlei XIAO , Xuliang NIE , Xiuying SONG , Xiuguang YI . Synthesis, crystal structures, Hirshfeld surface analysis, and antifungal activity of two complexes Na(Ⅰ)/Cd(Ⅱ) assembled by 5-bromo-2-hydroxybenzoic acid ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(9): 1661-1670. doi: 10.11862/CJIC.20240145
7. [7]
  Zuozhong Liang , Lingling Wei , Yiwen Cao , Yunhan Wei , Haimei Shi , Haoquan Zheng , Shengli Gao . Exploring the Development of Undergraduate Scientific Research Ability in Basic Course Instruction: A Case Study of Alkali and Alkaline Earth Metal Complexes in Inorganic Chemistry. University Chemistry, 2024, 39(7): 247-263. doi: 10.3866/PKU.DXHX202310103
8. [8]
  Chen LU , Qinlong HONG , Haixia ZHANG , Jian ZHANG . Syntheses, structures, and properties of copper-iodine cluster-based boron imidazolate framework materials. Chinese Journal of Inorganic Chemistry, 2025, 41(1): 149-154. doi: 10.11862/CJIC.20240407
9. [9]
  Feng Lu , Tao Wang , Qi Wang . Preparation and Characterization of Water-Soluble Silver Nanoclusters: A New Design and Teaching Practice in Materials Chemistry Experiment. University Chemistry, 2025, 40(4): 375-381. doi: 10.12461/PKU.DXHX202406005
10. [10]
  Pengcheng Yan , Peng Wang , Jing Huang , Zhao Mo , Li Xu , Yun Chen , Yu Zhang , Zhichong Qi , Hui Xu , Henan Li . Engineering Multiple Optimization Strategy on Bismuth Oxyhalide Photoactive Materials for Efficient Photoelectrochemical Applications. Acta Physico-Chimica Sinica, 2025, 41(2): 100014-. doi: 10.3866/PKU.WHXB202309047
11. [11]
  YanYuan Jia , Rong Rong , Jie Liu , Jing Guo , GuoYu Jiang , Shuo Guo . Unity is Strength, and Independence Shines: A Science Popularization Experiment on AIE and ACQ Effects. University Chemistry, 2024, 39(9): 349-358. doi: 10.12461/PKU.DXHX202402035
12. [12]
  Qin Li , Kexin Yang , Qinglin Yang , Xiangjin Zhu , Xiaole Han , Tao Huang . Illuminating Chlorophyll: Innovative Chemistry Popularization Experiment. University Chemistry, 2024, 39(9): 359-368. doi: 10.3866/PKU.DXHX202309059
13. [13]
  Zehua Zhang , Haitao Yu , Yanyu Qi . 多重共振TADF分子的设计策略. Acta Physico-Chimica Sinica, 2025, 41(1): 2309042-. doi: 10.3866/PKU.WHXB202309042
14. [14]
  Xingchao Zhao , Xiaoming Li , Ming Liu , Zijin Zhao , Kaixuan Yang , Pengtian Liu , Haolan Zhang , Jintai Li , Xiaoling Ma , Qi Yao , Yanming Sun , Fujun Zhang . 倍增型全聚合物光电探测器及其在光电容积描记传感器上的应用. Acta Physico-Chimica Sinica, 2025, 41(1): 2311021-. doi: 10.3866/PKU.WHXB202311021
15. [15]
  Jianjun Liu , Xue Yang , Chi Zhang , Xueyu Zhao , Zhiwei Zhang , Yongmei Chen , Qinghong Xu , Shao Jin . Preparation and Fluorescence Characterization of CdTe Semiconductor Quantum Dots. University Chemistry, 2024, 39(7): 307-315. doi: 10.3866/PKU.DXHX202311031
16. [16]
  Hexing SONG , Zan SUN . Synthesis, crystal structure, Hirshfeld surface analysis, and fluorescent sensing for Fe³⁺ of an Mn(Ⅱ) complex based on 1-naphthalic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 885-892. doi: 10.11862/CJIC.20240402
17. [17]
  Zhongxin YU , Wei SONG , Yang LIU , Yuxue DING , Fanhao MENG , Shuju WANG , Lixin YOU . Fluorescence sensing on chlortetracycline of a Zn-coordination polymer based on mixed ligands. Chinese Journal of Inorganic Chemistry, 2024, 40(12): 2415-2421. doi: 10.11862/CJIC.20240304
18. [18]
  Li'na ZHONG , Jingling CHEN , Qinghua ZHAO . Synthesis of multi-responsive carbon quantum dots from green carbon sources for detection of iron ions and L-ascorbic acid. Chinese Journal of Inorganic Chemistry, 2025, 41(4): 709-718. doi: 10.11862/CJIC.20240280
19. [19]
  Hongjie SHEN , Haozhe MIAO , Yuhe YANG , Yinghua LI , Deguang HUANG , Xiaofeng ZHANG . Synthesis, crystal structure, and fluorescence properties of two Cu(Ⅰ) complexes based on pyridyl ligand. Chinese Journal of Inorganic Chemistry, 2025, 41(5): 855-863. doi: 10.11862/CJIC.20250009
20. [20]
  Ji Qi , Jianan Zhu , Yanxu Zhang , Jiahao Yang , Chunting Zhang . Visible Color Change of Copper (II) Complexes in Reversible SCSC Transformation: The Effect of Structure on Color. University Chemistry, 2024, 39(3): 43-57. doi: 10.3866/PKU.DXHX202307050

Get Citation

PDF

XML

Metrics

PDF Downloads(0)
Abstract views(299)
HTML views(57)

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Address：Zhongguancun North First Street 2,100190 Beijing, PR China Tel: +86-010-82449177-888

DownLoad: Full-Size Img PowerPoint

Return