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Stacy BJ, Nagasaki K, Korgel BA. Luminescent Silicon Nanocrystals as Metal Ion Sensors. ACS NANO 2024; 18:15744-15753. [PMID: 38838260 DOI: 10.1021/acsnano.4c02309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2024]
Abstract
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.
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Affiliation(s)
- Benjamin J Stacy
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Kara Nagasaki
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
| | - Brian A Korgel
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, Austin, Texas 78712-1062, United States
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2
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Hamidu A, Pitt WG, Husseini GA. Recent Breakthroughs in Using Quantum Dots for Cancer Imaging and Drug Delivery Purposes. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2566. [PMID: 37764594 PMCID: PMC10535728 DOI: 10.3390/nano13182566] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
Cancer is one of the leading causes of death worldwide. Because each person's cancer may be unique, diagnosing and treating cancer is challenging. Advances in nanomedicine have made it possible to detect tumors and quickly investigate tumor cells at a cellular level in contrast to prior diagnostic techniques. Quantum dots (QDs) are functional nanoparticles reported to be useful for diagnosis. QDs are semiconducting tiny nanocrystals, 2-10 nm in diameter, with exceptional and useful optoelectronic properties that can be tailored to sensitively report on their environment. This review highlights these exceptional semiconducting QDs and their properties and synthesis methods when used in cancer diagnostics. The conjugation of reporting or binding molecules to the QD surface is discussed. This review summarizes the most recent advances in using QDs for in vitro imaging, in vivo imaging, and targeted drug delivery platforms in cancer applications.
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Affiliation(s)
- Aisha Hamidu
- Biomedical Engineering Program, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates;
| | - William G. Pitt
- Department of Chemical Engineering, Brigham Young University, Provo, UT 84602, USA;
| | - Ghaleb A. Husseini
- Materials Science and Engineering Program, College of Arts and Sciences, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
- Department of Chemical and Biological Engineering, College of Engineering, American University of Sharjah, Sharjah P.O. Box 26666, United Arab Emirates
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3
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Zhuang H, Jiang X, Wu S, Wang S, Pang Y, Huang Y, Yan H. A novel polypeptide-modified fluorescent gold nanoclusters for copper ion detection. Sci Rep 2022; 12:6624. [PMID: 35459921 PMCID: PMC9033799 DOI: 10.1038/s41598-022-10500-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 04/04/2022] [Indexed: 12/15/2022] Open
Abstract
Biomolecule-functionalized fluorescent gold nanocluster (AuNCs) have attracted a lot of attention due to good biocompatibility, stable physicochemical properties and considerable cost advantages. Inappropriate concentration of Cu2+ may cause a variety of diseases. In this study, AuNCs were synthesized in alkaline aqueous solution using bovine serum albumin (BSA) as a template. And then, the peptide CCYWDAHRDY was coupled to AuNCs. Furthermore, the fluorescence of synthesized CCYWDAHRDY-AuNCs response to Cu2+ was evaluated. As the results shown that the CCYWDAHRDY-AuNCs can sensitively detect Cu2+. After adding Cu2+ to the probe system, the fluorescence of the CCYWDAHRDY-AuNCs was quenched. The detection conditions were at pH 6 and 30 °C for 10 min, the linear relationship between Cu2+ concentration and fluorescence intensity were good in the range of 0.1 ~ 4.2 μmol/L. The regression equation was y = − 105.9x + 693.68, the linear correlation coefficient is 0.997, and the minimum detection limit was 52 nmol/L.
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Affiliation(s)
- Hong Zhuang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Xinyu Jiang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Sijia Wu
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Shujin Wang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Yong Pang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Yanjun Huang
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China
| | - Haiyang Yan
- College of Food Science and Engineering, Jilin University, No. 5333 Xi'an Road, Changchun, 130062, China.
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4
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Milliken S, Thiessen AN, Cheong IT, O'Connor KM, Li Z, Hooper RW, Robidillo CJT, Veinot JGC. "Turning the dials": controlling synthesis, structure, composition, and surface chemistry to tailor silicon nanoparticle properties. NANOSCALE 2021; 13:16379-16404. [PMID: 34492675 DOI: 10.1039/d1nr04701a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Silicon nanoparticles (SiNPs) can be challenging to prepare with defined size, crystallinity, composition, and surface chemistry. As is the case for any nanomaterial, controlling these parameters is essential if SiNPs are to realize their full potential in areas such as alternative energy generation and storage, sensors, and medical imaging. Numerous teams have explored and established innovative synthesis methods, as well as surface functionalization protocols to control these factors. Furthermore, substantial effort has been expended to understand how the abovementioned parameters influence material properties. In the present review we provide a commentary highlighting the benefits and limitations of available methods for preparing silicon nanoparticles as well as demonstrations of tailoring optical and electronic properties through definition of structure (i.e., crystalline vs. amorphous), composition and surface chemistry. Finally, we highlight potential opportunities for future SiNP studies.
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Affiliation(s)
- Sarah Milliken
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
| | | | - I Teng Cheong
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
| | - Kevin M O'Connor
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
| | - Ziqi Li
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
| | - Riley W Hooper
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
| | | | - Jonathan G C Veinot
- Department of Chemistry, University of Alberta, Chemistry, Edmonton, Canada.
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5
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Fluorescent Silicon-based Nanomaterials Imaging Technology in Diseases. Chem Res Chin Univ 2021. [DOI: 10.1007/s40242-021-1180-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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6
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Liu J, Zhang J, Wang M, Su X. Silicon quantum dots based dual-mode fluorometric and colorimetric sensing of D-penicillamine. Talanta 2021; 224:121886. [DOI: 10.1016/j.talanta.2020.121886] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2020] [Revised: 11/04/2020] [Accepted: 11/07/2020] [Indexed: 12/20/2022]
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7
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Zheng AQ, Hao YN, Guo TT, Shu Y, Wang JH. A fluorescence imaging protocol for correlating intracellular free cationic copper to the total uptaken copper by live cells. Talanta 2020; 220:121355. [PMID: 32928391 DOI: 10.1016/j.talanta.2020.121355] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 06/22/2020] [Accepted: 06/24/2020] [Indexed: 01/26/2023]
Abstract
A variety of fluorescence probes have been developed for fluorescence imaging of metals in biological cells. However, accurate quantification of metals with fluorescent approaches is challenging due to the difficulty in establishing a standard calibration curve in living cells. Herein, a fluorescence imaging protocol is developed for imaging intracellular Cu2+ and its correlation with the cellular uptake of copper. The total amount of intracellular Cu is detected by inductively coupled plasma mass spectrometry (ICP-MS) in parallel. Fluorescence imaging of Cu2+ is accomplished with Rhodamine B derivative modified carbon dots (CDs-Rbh) based on fluorescence resonance energy transfer (FRET) from CDs to rhodamine. Intracellular Cu2+ is correlated with fluorescence ratio at λem 500-600 nm (rhodamine) to λem 425-475 nm (CDs) with excitation at λex 405 nm. It is found that Cu2+ is linearly correlated with the total intracellular uptaken copper content, with a linear correlation between the relative fluorescence ratio in fluorescence imaging and intracellular Cu derived from ICP-MS, including both Cu(I) and Cu(II) species. The linear calibration equation is lg(F2/F1) = 0.00148 m[Cu]-0.3622. This approach facilitates further investigation and elucidation of copper transition in live cells and the evaluation of their cytotoxicity.
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Affiliation(s)
- An-Qi Zheng
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Ya-Nan Hao
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Ting-Ting Guo
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
| | - Yang Shu
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
| | - Jian-Hua Wang
- Research Center for Analytical Sciences, Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China.
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8
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Han XL, Li Q, Hao H, Liu C, Li R, Yu F, Lei J, Jiang Q, Liu Y, Hu J. Facile one-step synthesis of quaternary AgInZnS quantum dots and their applications for causing bioeffects and detecting Cu 2. RSC Adv 2020; 10:9172-9181. [PMID: 35497204 PMCID: PMC9050053 DOI: 10.1039/c9ra09840b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 02/10/2020] [Indexed: 12/03/2022] Open
Abstract
Water-soluble AgInZnS quantum dots (AIZS QDs) were synthesized with glutathione (GSH) as a stabilizer by a facile one-step method based on a hydrothermal reaction between the nitrate salts of the corresponding metals and sodium sulfide as a sulfide precursor at 110 °C. The optimal reaction conditions (temperature, time, pH, and the molar ratios of the precursors) were studied. According to the data from TEM, XPS, and XRD, AIZS QDs were characterized with excellent optical properties. The results showed that the aqueous-dispersible AIZS QDs were quasi-spherical and their average diameter was 3.51 nm. Furthermore, the cytotoxicity of AIZS QDs was investigated by microcalorimetry and microscopy techniques (confocal microscopy and TEM). The data revealed that AIZS QDs exhibited low toxicity, biocompatibility, and good water stability, due to which they could be used as a fluorescent probe for bioimaging and labeling. In addition, AIZS QDs could be used as a sensor to detect Cu2+ because the fluorescence of AIZS QDs was quenched by Cu2+. Water-soluble AgInZnS quantum dots were synthesized with glutathione as a stabilizer by a facile one-step method based on a hydrothermal reaction at 110 °C. It exhibited excellent optical properties, which can be used as sensor to detect Cu2+.![]()
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Affiliation(s)
- Xiao-Le Han
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Qingyu Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Hao Hao
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Chenyin Liu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Run Li
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Fan Yu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Jiawen Lei
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Qingqing Jiang
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
| | - Yi Liu
- State Key Laboratory of Virology, Key Laboratory of Analytical Chemistry for Biology and Medicine (MOE), College of Chemistry and Molecular Sciences, Wuhan University Wuhan 430072 P. R. China
| | - Juncheng Hu
- Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education, Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central University for Nationalities Wuhan 430074 China
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9
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Canham L. Introductory lecture: origins and applications of efficient visible photoluminescence from silicon-based nanostructures. Faraday Discuss 2020; 222:10-81. [DOI: 10.1039/d0fd00018c] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This review highlights many spectroscopy-based studies and selected phenomenological studies of silicon-based nanostructures that provide insight into their likely PL mechanisms, and also covers six application areas.
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Affiliation(s)
- Leigh Canham
- School of Physics and Astronomy
- University of Birmingham
- Birmingham
- UK
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10
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Shen S, Huang B, Guo X, Wang H. A dual-responsive fluorescent sensor for Hg2+ and thiols based on N-doped silicon quantum dots and its application in cell imaging. J Mater Chem B 2019; 7:7033-7041. [DOI: 10.1039/c9tb01502g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
An on–off–on fluorescent sensor based on N-SiQD has the advantages of fast response time and high sensitivity to Hg2+ and GSH.
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Affiliation(s)
- Sansan Shen
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Bohui Huang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Xiaofeng Guo
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
| | - Hong Wang
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education)
- College of Chemistry and Molecular Sciences
- Wuhan University
- Wuhan 430072
- China
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11
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Phan LMT, Baek SH, Nguyen TP, Park KY, Ha S, Rafique R, Kailasa SK, Park TJ. Synthesis of fluorescent silicon quantum dots for ultra-rapid and selective sensing of Cr(VI) ion and biomonitoring of cancer cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:429-436. [DOI: 10.1016/j.msec.2018.08.024] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 07/12/2018] [Accepted: 08/07/2018] [Indexed: 10/28/2022]
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12
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Zhao Q, Zhang R, Ye D, Zhang S, Chen H, Kong J. Ratiometric Fluorescent Silicon Quantum Dots-Ce6 Complex Probe for the Live Cell Imaging of Highly Reactive Oxygen Species. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2052-2058. [PMID: 28026159 DOI: 10.1021/acsami.6b12047] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The monitoring of reactive oxygen species (ROS) in living cells remains challenging because of the complexity, short half-life, and autofluorescence of biological samples. In this work, we designed a ratiometric fluorescent probe for the detection and imaging of ROS, which was constructed from silicon quantum dots (Si QDs) with chlorin e6 (Ce6) through electrostatic attraction and showed well-resolved dual fluorescence emission signals (490 and 660 nm). Sensitive and selective biosensing of hydroxyl radical (•OH) was demonstrated on the basis of fluorescence quenching of the Si QDs and Ce6 as an internal reference to avoid environmental interference, with a detection limit of ∼0.97 μM. The endogenous release of •OH was also monitored and imaged in living cells.
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Affiliation(s)
- Qianqian Zhao
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Ren Zhang
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Daixin Ye
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Song Zhang
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Hui Chen
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
| | - Jilie Kong
- Department of Chemistry, Fudan University , Shanghai 200433, P. R. China
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13
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Xu X, Ma S, Xiao X, Hu Y, Zhao D. The preparation of high-quality water-soluble silicon quantum dots and their application in the detection of formaldehyde. RSC Adv 2016. [DOI: 10.1039/c6ra24654k] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This paper reports the synthesis of water-soluble fluorescence silicon quantum dots (Si QDs) through a hydrothermal route with urea propyl triethoxysilane (UPTES) as the source of silicon and sodium citrate as the deoxidizer.
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Affiliation(s)
- Xiaoling Xu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
| | - Shiyao Ma
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
| | - Xincai Xiao
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
| | - Yan Hu
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
| | - Dan Zhao
- School of Pharmaceutical Sciences
- South-Central University for Nationalities
- Wuhan 430074
- P. R. China
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14
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Zhang XY, Zheng Y, Liu CH, Wang PH, Zhu YY. Facile and large scale in situ synthesis of the thermal responsive fluorescent SiNPs/PNIPAM hydrogels. RSC Adv 2016. [DOI: 10.1039/c6ra09534h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
A new type of F-SiNPs/poly(N-isopropylacrylamide) (F-SiNPs/PNIPAM) hydrogel was prepared byin situpolymerization. The composite hydrogels display visible thermal-sensitive phase transition properties.
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Affiliation(s)
- Xiao-Yan Zhang
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Yan Zheng
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Chun-Hua Liu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Ping-Hua Wang
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
| | - Yuan-Yuan Zhu
- School of Chemistry and Chemical Engineering
- Hefei University of Technology
- Anhui Key Laboratory of Advanced Functional Materials and Devices
- Hefei 230009
- China
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15
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Shanmugaraj K, Ilanchelian M. A “turn-off” fluorescent sensor for the selective and sensitive detection of copper(ii) ions using lysozyme stabilized gold nanoclusters. RSC Adv 2016. [DOI: 10.1039/c6ra08325k] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
In this contribution, we have developed a simple, environmentally friendly fluorescent turn-off sensor for the detection of copper (Cu2+) ions in aqueous solution by using lysozyme stabilized gold nanoclusters (Lys-AuNCs) as a fluorescent probe.
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