1
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Wang T, Tan HS, Wang AJ, Li SS, Feng JJ. Fluorescent metal nanoclusters: From luminescence mechanism to applications in enzyme activity assays. Biosens Bioelectron 2024; 257:116323. [PMID: 38669842 DOI: 10.1016/j.bios.2024.116323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 04/09/2024] [Accepted: 04/20/2024] [Indexed: 04/28/2024]
Abstract
Metal nanoclusters (MNCs) have outstanding fluorescence property and biocompatibility, which show widespread applications in biological analysis. Particularly, evaluation of enzyme activity with the fluorescent MNCs has been developed rapidly within the past several years. In this review, we first introduced the fluorescent mechanism of mono- and bi-metallic nanoclusters, respectively, whose interesting luminescence properties are mainly resulted from electron transfer between the lowest unoccupied molecular orbital (LUMO) and highest occupied molecular orbital (HOMO) energy levels. Meanwhile, the charge migration within the structure occurs through ligand-metal charge transfer (LMCT) or ligand-metal-metal charge transfer (LMMCT). On such foundation, diverse enzyme activities were rigorously evaluated, including three transferases and nine hydrolases, in turn harvesting rapid research progresses within past 5 years. Finally, we summarized the design strategies for evaluating enzyme activity with the MNCs, presented the major issues and challenges remained in the relevant research, coupled by showing some improvement measures. This review will attract researchers dedicated to the studies of the MNCs and provide some constructive insights for their further applications in enzyme analysis.
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Affiliation(s)
- Tong Wang
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Hong-Sheng Tan
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China
| | - Ai-Jun Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China
| | - Shan-Shan Li
- Institute for Chemical Biology & Biosensing, College of Life Sciences, Qingdao University, 308 Ningxia Road, Qingdao, 266071, China.
| | - Jiu-Ju Feng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua, 321004, China.
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2
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Balamurugan TST, Stelmaszczyk P, Wietecha-Posłuszny R, Poltorak L. Electroanalytical characterization of clozapine at the electrified liquid-liquid interface and its detection in soft and hard drinks. Analyst 2024; 149:2073-2083. [PMID: 38415352 DOI: 10.1039/d3an02188b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Clozapine (CZ) is a prescribed benzodiazepine psychiatric drug that is often possessed as an illicit drug and is associated with drug-facilitated sexual assaults (DFSA) due to its strong sedative capabilities. Hence, we propose an electrified liquid-liquid interface (eLLI) based transducing element as an alternative electroanalytical platform for rapid screening of CZ in soft and hard drinks which is habitually associated with DFSA crimes. First, molecular partitioning and the effect of chemical composition, pH, and the presence of ethanol in the biphasic configuration of the aqueous phase on the interfacial behaviour and analytical performance of the CZ at the eLLI have been investigated with voltammetry. Next, the electrochemical profiles of various soft and hard drinks were studied at the eLLI. The eLLI-based CZ sensor has shown a broad dynamic range (15-150 μM), lower detection limits (1μM), and adequate reliability towards rapid CZ screening in spiked soft and hard drink samples with reference to the standard chromatographic analysis.
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Affiliation(s)
- Thangaraj S T Balamurugan
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland.
| | - Paweł Stelmaszczyk
- Laboratory for Forensic Chemistry, Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
- Doctoral School of Exact and Natural Sciences, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Renata Wietecha-Posłuszny
- Laboratory for Forensic Chemistry, Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Lukasz Poltorak
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland.
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3
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Stelmaszczyk P, Kwaczyński K, Rudnicki K, Skrzypek S, Wietecha-Posłuszny R, Poltorak L. Nitrazepam and 7-aminonitrazepam studied at the macroscopic and microscopic electrified liquid-liquid interface. Mikrochim Acta 2023; 190:182. [PMID: 37052720 PMCID: PMC10101902 DOI: 10.1007/s00604-023-05739-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/09/2023] [Indexed: 04/14/2023]
Abstract
Two benzodiazepine type drugs, that is, nitrazepam and 7-aminonitrazepam, were studied at the electrified liquid-liquid interface (eLLI). Both drugs are illicit and act sedative in the human body and moreover are used as date rape drugs. Existence of the diazepine ring in the concerned chemicals structure and one additional amine group (for 7-aminonitrazepam) allows for the molecular charging below their pKa values, and hence, both drugs can cross the eLLI interface upon application of the appropriate value of the Galvani potential difference. Chosen molecules were studied at the macroscopic eLLI formed in the four electrode cell and microscopic eLLI formed within a microtip defined as the single pore having 25 μm in diameter. Microscopic eLLI was formed using only a few μL of the organic and the aqueous phase with the help of a 3D printed cell. Parameters such as limit of detection and voltammetric detection sensitivity are derived from the experimental data. Developed methodology was used to detect nitrazepam in pharmaceutical formulation and both drugs (nitrazepam and 7-aminonitrazepam) in spiked biological fluids (urine and blood).
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Affiliation(s)
- Paweł Stelmaszczyk
- Laboratory for Forensic Chemistry, Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland
| | - Karolina Kwaczyński
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland
| | - Konrad Rudnicki
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland
| | - Sławomira Skrzypek
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland
| | - Renata Wietecha-Posłuszny
- Laboratory for Forensic Chemistry, Department of Analytical Chemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387, Krakow, Poland.
| | - Lukasz Poltorak
- Electrochemistry@Soft Interfaces Team, Department of Inorganic and Analytical Chemistry, Faculty of Chemistry, University of Lodz, Tamka 12, 91-403, Lodz, Poland.
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4
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Opallo MW, Dusilo K, Warczak M, Kalisz J. Hydrogen Evolution, Oxygen Evolution and Oxygen Reduction at Polarizable Liquid|Liquid Interfaces. ChemElectroChem 2022. [DOI: 10.1002/celc.202200513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marcin Wojciech Opallo
- Institute of Physical Chemistry, Polish Academy of Sciences Department of Electrode Processes Kasprzaka 44/52 01-224 Warszawa POLAND
| | - Katarzyna Dusilo
- Institute of Physical Chemistry Polish Academy of Sciences Library: Instytut Chemii Fizycznej Polskiej Akademii Nauk Biblioteka Electrode Processes POLAND
| | - Magdalena Warczak
- Institute of Physical Chemistry Polish Academy of Sciences Library: Instytut Chemii Fizycznej Polskiej Akademii Nauk Biblioteka Electrode Processes POLAND
| | - Justyna Kalisz
- University of Warsaw: Uniwersytet Warszawski Chemistry POLAND
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5
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Podrażka M, Witkowska Nery E, Henares TG, Jönsson-Niedziółka M, Arrigan DWM. Ion Transfer Voltammetry with an Electrochemical Pen. Anal Chem 2020; 92:15997-16004. [PMID: 33259187 PMCID: PMC7745201 DOI: 10.1021/acs.analchem.0c03530] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We present a new electrochemical system that combines paper-based sensing and ion-transfer voltammetry, bringing the latter a step closer toward point-of-care applications. Studies at the interface between two immiscible electrolyte solutions (ITIES) are often performed to detect redox-inactive species; unfortunately, due to the inherent instability of the interface, it is rather poorly explored outside specialized laboratories. Here, we address this limitation by combining a pen-like device containing the gelled organic phase with a paper-supported aqueous phase. This combination makes the system more user-friendly, potentially low-cost, and easy to assemble. We show the applicability of the new cell to analyze both simple and ionophore-facilitated transfer of ions and proteins, preconcentration of species, and analysis of mixtures through combination with paper chromatography. The native ion content of the paper also enabled measurements without added electrolytes. Those studies could broaden the scope for the application of the label-free electrochemical detection of nonredox-active species at points-of-need.
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Affiliation(s)
- Marta Podrażka
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Emilia Witkowska Nery
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Terence G Henares
- Curtin Institute for Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
| | | | - Damien W M Arrigan
- Curtin Institute for Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, Western Australia 6845, Australia
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Zhang H, Liu P, Wang H, Ji X, Zhao M, Song Z. Label-free fluorescent sensor for one-step lysozyme detection via positively charged gold nanorods. Anal Bioanal Chem 2020; 413:1541-1547. [PMID: 32705288 DOI: 10.1007/s00216-020-02814-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 06/29/2020] [Accepted: 07/09/2020] [Indexed: 12/25/2022]
Abstract
In the article, a simple and label-free strategy was proposed for the sensitive detection of lysozyme based on the fluorescence quenching of positively charged gold nanorods ((+)AuNRs) to DNA-templated silver nanoclusters (DNA/AgNCs). To construct the sensor, a DNA template was designed with a C-rich sequence at the 5'-terminal for the synthesis of AgNCs, while a lysozyme binding aptamer (LBA) at the 3'-terminal for the recognition of lysozyme, and such DNA/AgNCs was used as the fluorescence probe. Meantime, the fluorescence signal of such DNA/AgNCs can be quenched based on the electrostatic adsorption of them with (+)AuNRs, due to the surface energy transfer. In the presence of lysozyme, the specific binding happened between the LBA section of DNA/AgNCs and lysozyme, inducing the reduction of the total charge of DNA/AgNCs and weakening the adsorption of them with (+)AuNRs, which directly resulting in the recovery of the fluorescence signal. Besides, the fluorescence signal recovery of DNA/AgNCs has a linear positive proportional relationship with lysozyme concentration in the range of 10 pM-2.0 nM under the optimal conditions. Moreover, a satisfactory recovery (99.6-107.2%) was obtained while detecting lysozyme in human serum samples. Graphical abstract A simple and label-free strategy was proposed for the sensitive detection of lysozyme based on the fluorescence quenching of positively charged gold nanorods ((+)AuNRs) to DNA-templated silver nanoclusters (DNA/AgNCs).
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Affiliation(s)
- Hong Zhang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Pengfei Liu
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Huifang Wang
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Xiaoming Ji
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China
| | - Mingqin Zhao
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
| | - Zhaopeng Song
- College of Tobacco Science, Henan Agricultural University, Zhengzhou, 450002, Henan, China.
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Chen R, Yang A, Chang A, Oweimrin PF, Romero J, Vichitcharoenpaisarn P, Tapia S, Ha K, Villaflor C, Shen M. A Newly Synthesized Tris(crown ether) Ionophore for Assisted Ion Transfer at NanoITIES Electrodes. ChemElectroChem 2020. [DOI: 10.1002/celc.201901997] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ran Chen
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Anna Yang
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Albert Chang
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Philip F. Oweimrin
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Julian Romero
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | | | - Stephanie Tapia
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Kevin Ha
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Christopher Villaflor
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
| | - Mei Shen
- Department of Chemistry University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana Illinois 61801
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8
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Ganesan V, Madrid E, Malpass-Evans R, Carta M, McKeown NB, Marken F. Biphasic Voltammetry and Spectroelectrochemistry in Polymer of Intrinsic Microporosity—4-(3-Phenylpropyl)-Pyridine Organogel/Aqueous Electrolyte Systems: Reactivity of MnPc Versus MnTPP. Electrocatalysis (N Y) 2018. [DOI: 10.1007/s12678-018-0497-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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9
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Felisilda BMB, Payne AD, Arrigan DWM. Electrochemical Behavior and Detection of Sulfated Sucrose at a Liquid|Organogel Microinterface Array. Anal Chem 2018; 90:10256-10262. [DOI: 10.1021/acs.analchem.8b01710] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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10
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Abstract
The electrochemical behavior of a synthetic oligonucleotide, thrombin-binding aptamer (TBA, 15-mer), was explored at a liquid-organogel microinterface array. TBA did not display any response when only background electrolytes were present in both phases. On the basis of literature reports that surfactants can influence nucleic acid detection, the response in the presence of cetyltrimethylammonium (CTA+) was examined. With both TBA and CTA+ in the aqueous phase, the transfer current for CTA+ was diminished, signifying the interaction of CTA+ with TBA. Experiments with CTA+ spiked into the organic phase revealed a sharp current peak, consistent with the interfacial formation of a CTA+-TBA complex. However, use of CTA+ as the organic phase electrolyte cation, as the salt with tetrakis(4-chlorophenyl)borate, greatly improved the response to TBA. In this case, a distinctive peak response (at ca. -0.25 V) was attributed to the transfer of CTA+ across the soft interface to complex with aqueous phase TBA. Employing this process as a detection step enabled a detection limit of 0.11 μM TBA (by cyclic voltammetry). Furthermore, the presence of magnesium cations at physiological concentration resulted in the disappearance of the TBA response because of Mg2+-induced folding of TBA. Also, the current response of TBA was decreased by the addition of thrombin, indicating TBA interacted with this binding partner. Finally, the interfacial surfactant-aptamer interaction was explored in a synthetic urine matrix that afforded a detection limit of 0.29 μM TBA. These results suggest that aptamer-binding interactions can be monitored by electrochemistry at aqueous-organic interfaces and open up a new possibility for detection in aptamer-binding assays.
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Affiliation(s)
- Bren Mark B Felisilda
- Curtin Institute for Functional Molecules and Interfaces, School of Molecular and Life Sciences , Curtin University , GPO Box U1987, Perth , Western Australia 6845 , Australia
| | - Damien W M Arrigan
- Curtin Institute for Functional Molecules and Interfaces, School of Molecular and Life Sciences , Curtin University , GPO Box U1987, Perth , Western Australia 6845 , Australia
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11
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Alvarez de Eulate E, O'Sullivan S, Arrigan DWM. Electrochemically Induced Formation of Cytochrome c
Oligomers at Soft Interfaces. ChemElectroChem 2017. [DOI: 10.1002/celc.201600851] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Eva Alvarez de Eulate
- Nanochemistry Research Institute & Department of Chemistry; Curtin University; GPO Box U1987 Perth Western Australia, Australia 6845
| | - Shane O'Sullivan
- Nanochemistry Research Institute & Department of Chemistry; Curtin University; GPO Box U1987 Perth Western Australia, Australia 6845
| | - Damien W. M. Arrigan
- Nanochemistry Research Institute & Department of Chemistry; Curtin University; GPO Box U1987 Perth Western Australia, Australia 6845
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12
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Felisilda BMB, Alvarez de Eulate E, Stringer DN, Fitton JH, Arrigan DWM. Electrochemical behaviour at a liquid-organogel microinterface array of fucoidan extracted from algae. Analyst 2017; 142:3194-3202. [DOI: 10.1039/c7an00761b] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The electrochemical behaviour of fucoidan, a sulfated polysaccharide, was investigated, leading to a detection strategy by adsorptive stripping voltammetry.
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Affiliation(s)
- Bren Mark B. Felisilda
- Curtin Institute of Functional Molecules and Interfaces
- Department of Chemistry
- Curtin University
- Perth
- Australia
| | - Eva Alvarez de Eulate
- Curtin Institute of Functional Molecules and Interfaces
- Department of Chemistry
- Curtin University
- Perth
- Australia
| | | | | | - Damien W. M. Arrigan
- Curtin Institute of Functional Molecules and Interfaces
- Department of Chemistry
- Curtin University
- Perth
- Australia
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13
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Electrochemical signature of hen egg white lysozyme at the glycerol-modified liquid-liquid interface. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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14
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Akter R, Arrigan DWM. Detection of Prostate Specific Membrane Antigen at Picomolar Levels Using Biocatalysis Coupled to Assisted Ion Transfer Voltammetry at a Liquid-Organogel Microinterface Array. Anal Chem 2016; 88:11302-11305. [DOI: 10.1021/acs.analchem.6b03518] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Rashida Akter
- Nanochemistry Research Institute & Department of Chemistry, Curtin University, G.P.O Box U1987, Perth, Western Australia 6845, Australia
| | - Damien W. M. Arrigan
- Nanochemistry Research Institute & Department of Chemistry, Curtin University, G.P.O Box U1987, Perth, Western Australia 6845, Australia
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15
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Lou T, Qiang H, Chen Z. Core-shell Cu@Au nanoparticles-based colorimetric aptasensor for the determination of lysozyme. Talanta 2016; 163:132-139. [PMID: 27886762 DOI: 10.1016/j.talanta.2016.10.095] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Revised: 10/24/2016] [Accepted: 10/27/2016] [Indexed: 02/04/2023]
Abstract
A growing body of evidence indicates that lysozyme plays a significant role as an indicator for many diseases and a drug for treatment of infections, ulcers and to study the spatial conformation, enzyme kinetics, and molecular immunology. Therefore, highly sensitive determination of lysozyme is necessary and vital in a wide variety of fields. In this work, we put forward a simple but effective strategy for colorimetric visualization of lysozyme based on iodide-responsive Cu@Au nanoparticles (Cu@Au NPs) as well as the iodide-catalyzed H2O2-TMB (3,3,5,5-tetramethylbenzidine) reaction system. Colorimetric detection is applied because of its simplicity, fast response for analysis, high detection limit, low costs and practicality. In our strategy, iodide is applied for the reason that it can induce an obvious color change of the Cu@Au nanoparticles solution from gray to red, along with the change of morphologies of the Cu@Au nanoparticles from irregular to spherical. Consequently, this phenomenon results in colorimetric signal variation of the iodide-catalytic H2O2-TMB system. What's more, by quite simple biomolecule modification on the Cu@Au nanoparticles surface, an all-purpose colorimetric platform is established for the accurate detection of lysozyme, which could lead to the change of Cu@Au NP concentration through molecular recognition. The results show that modified Cu-Au NPs successfully achieved a simple, selective, visualized, and ultrasensitive detection of lysozyme with a linear range from 10-7 to 10-3M and a detection limit of 60nM.
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Affiliation(s)
- Tianhong Lou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Hong Qiang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Zhengbo Chen
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
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16
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Aptasensor for visual and fluorometric determination of lysozyme based on the inner filter effect of gold nanoparticles on CdTe quantum dots. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1903-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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17
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Arooj M, Gandhi NS, Kreck CA, Arrigan DWM, Mancera RL. Adsorption and Unfolding of Lysozyme at a Polarized Aqueous–Organic Liquid Interface. J Phys Chem B 2016; 120:3100-12. [DOI: 10.1021/acs.jpcb.6b00536] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mahreen Arooj
- School of Biomedical Sciences, CHIRI Biosciences and Curtin Institute
for Computation, ‡Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO
Box U1987, Perth, WA 6845, Australia
| | - Neha S. Gandhi
- School of Biomedical Sciences, CHIRI Biosciences and Curtin Institute
for Computation, ‡Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO
Box U1987, Perth, WA 6845, Australia
| | - Cara A. Kreck
- School of Biomedical Sciences, CHIRI Biosciences and Curtin Institute
for Computation, ‡Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO
Box U1987, Perth, WA 6845, Australia
| | - Damien W. M. Arrigan
- School of Biomedical Sciences, CHIRI Biosciences and Curtin Institute
for Computation, ‡Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO
Box U1987, Perth, WA 6845, Australia
| | - Ricardo L. Mancera
- School of Biomedical Sciences, CHIRI Biosciences and Curtin Institute
for Computation, ‡Department of Chemistry and Nanochemistry Research Institute, Curtin University, GPO
Box U1987, Perth, WA 6845, Australia
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18
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Liu X, Na W, Qu Z, Su X. Turn-off–on fluorescence probe based on 3-mercaptopropionic acid-capped CdS quantum dots for selective and sensitive lysozyme detection. RSC Adv 2016. [DOI: 10.1039/c6ra14420a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The fluorescence of CdS QDs was first quenched by hemoglobin and then restored with the increasing concentration of the lysozyme in a certain range. Therefore, a fluorescence assay for the determination of lysozyme was established.
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Affiliation(s)
- Xiaotong Liu
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Weidan Na
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Zhengyi Qu
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
| | - Xingguang Su
- Department of Analytical Chemistry
- College of Chemistry
- Jilin University
- Changchun
- China
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