Luminescent Silicon Nanocrystals as Metal Ion Sensors

被引：3
作者：
Stacy, Benjamin J. [1 ,2 ]
Nagasaki, Kara [1 ,2 ]
Korgel, Brian A. [1 ,2 ]
机构：
[1] Univ Texas Austin, McKetta Dept Chem Engn, Austin, TX 78712 USA
[2] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA
来源：
ACS NANO | 2024年 / 18卷 / 24期
关键词：
silicon nanocrystal; silicon quantum dot; photoluminescence; sensors; metal ions; CARBON QUANTUM DOTS; FLUORESCENT SENSORS; LABEL-FREE; PHOTOLUMINESCENCE; NANOPARTICLES; FACILE; PROBE; HYDROSILYLATION; EMISSION; DYNAMICS;
D O I：
10.1021/acsnano.4c02309
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
At relatively low concentrations in aqueous solution, Fe3+, Fe2+, Cu2+, and Ni2+ quench the photoluminescence (PL) of the undecenoic acid-capped silicon (Si) nanocrystals. The PL could be restored by adding a chelating agent, such as ethylenediaminetetraacetic acid (EDTA), to remove the ions. Fe3+ and Cu2+ also significantly increase the PL lifetime. Other metal ions, including Cd2+, Mn2+, Pb2+, Zn2+, In3+, K+, and Ca2+, had no effect on the Si nanocrystal PL. The limits of detection (LODs) for Fe3+ and Cu2+ of 370 and 150 nM, respectively, are low enough for metal ion sensing applications.
引用
收藏
页码：15744 / 15753
页数：10
相关论文
共 50 条
  • [31] Synthesis of colloidal solutions with silicon nanocrystals from porous silicon
    Luna Lopez, Jose Alberto
    Garzon Roman, Abel
    Gomez Barojas, Estela
    Flores Gracia, J. F.
    Martinez Juarez, Javier
    Carrillo Lopez, Jesus
    NANOSCALE RESEARCH LETTERS, 2014, 9
  • [32] Hydrogen peroxide luminescent sensors based on rare-earth doped nanocrystals: sensing mechanisms and biological applications
    Seminko, V. V.
    Neuhodov, Ye. I.
    Maksimchuk, P. O.
    Kavok, N. S.
    Yefimova, S. L.
    FUNCTIONAL MATERIALS, 2024, 31 (03): : 311 - 319
  • [33] Metal-ion doped luminescent thin films for optoelectronic applications
    Zhang, Yang
    Hao, Jianhua
    JOURNAL OF MATERIALS CHEMISTRY C, 2013, 1 (36) : 5607 - 5618
  • [34] Water-Soluble Luminescent Silicon Nanocrystals by Plasma-Induced Acrylic Acid Grafting and PEGylation
    Li, Zhaohan
    Mahajan, Advitiya
    Andaraarachchi, Himashi P.
    Lee, Yeonjoo
    Kortshagen, Uwe R.
    ACS APPLIED BIO MATERIALS, 2022, 5 (01) : 105 - 112
  • [35] Mixed Surface Chemistry: An Approach to Highly Luminescent Biocompatible Amphiphilic Silicon Nanocrystals
    Islam, Muhammad Amirul
    Sinelnikov, Regina
    Howlader, Md Amran
    Faramus, Angelique
    Veinot, Jonathan G. C.
    CHEMISTRY OF MATERIALS, 2018, 30 (24) : 8925 - 8931
  • [36] Growth of highly luminescent silicon nanocrystals by rapid thermal chemical vapor deposition
    Cheong, HJ
    Kang, JH
    Kim, JK
    Kim, Y
    ON THE CONVERGENCE OF BIO-INFORMATION-, ENVIRONMENTAL-, ENERGY-, SPACE- AND NANO-TECHNOLOGIES, PTS 1 AND 2, 2005, 277-279 : 977 - 982
  • [37] Enhancement of photoluminescence from silicon nanocrystals by metal nanostructures made by nanosphere lithography
    Mochizuki, Yugo
    Fujii, Minoru
    Hayashi, Shinji
    Tsuruoka, Takaaki
    Akamatsu, Kensuke
    JOURNAL OF APPLIED PHYSICS, 2009, 106 (01)
  • [38] Wavelength-Controlled Etching of Silicon Nanocrystals
    Nunez, Jose R. Rodriguez
    Kelly, Joel A.
    Henderson, Eric J.
    Veinot, Jonathan G. C.
    CHEMISTRY OF MATERIALS, 2012, 24 (02) : 346 - 352
  • [39] Ambient-stable blue luminescent silicon nanocrystals prepared by nanosecond-pulsed laser ablation in water
    Svrcek, Vladimir
    Mariotti, Davide
    Kondo, Michio
    OPTICS EXPRESS, 2009, 17 (02): : 520 - 527
  • [40] Luminescent Mechanism and Anti-Counterfeiting Application of Hydrophilic, Undoped Room-Temperature Phosphorescent Silicon Nanocrystals
    Guo, Xin
    Sun, Xuening
    Zhang, Jinfeng
    Huang, Yuanfen
    Liu, Xiaohong
    Liu, Xin
    Xu, Weilin
    Chen, Dongzhi
    SMALL, 2023, 20 (02)
12345