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Ali R, Saleh SM. Design a Friendly Nanoscale Chemical Sensor Based on Gold Nanoclusters for Detecting Thiocyanate Ions in Food Industry Applications. BIOSENSORS 2024; 14:223. [PMID: 38785697 PMCID: PMC11118002 DOI: 10.3390/bios14050223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024]
Abstract
The surfactant cetyltrimethylammonium bromide (CTAB) induces the aggregation of gold nanoclusters (GNCs), leading to the development of a proposed fluorometric technique for detecting thiocyanate (SCN-) ions based on an anti-aggregation mechanism. This approach is straightforward to execute, highly sensitive, and selective. A significant quenching effect occurs in fluorescence upon using the aggregation agent CTAB in GNCs synthesis, resulting in a transition from intense red fluorescence to dim red. The decrease in fluorescence intensity of GNCs in the presence of CTAB is caused by the mechanism of fluorescence quenching mediated by aggregation. As the levels of SCN- rise, the fluorescence of CTAB-GNCs increases; this may be detected using spectrofluorometry or by visually inspecting under UV irradiation. The recovery of red fluorescence of CTAB-GNCs in the presence of SCN- enables the precise and discerning identification of SCN- within the concentration range of 2.86-140 nM. The minimum detectable concentration of the SCN- ions was 1 nM. The selectivity of CTAB-GNCs towards SCN- ions was investigated compared to other ions, and it was demonstrated that CTAB-GNCs exhibit exceptional selectivity. Furthermore, we believe that CTAB-GNCs have novel possibilities as favorable sensor candidates for various industrial applications. Our detection technique was validated by analyzing SCN- ions in milk samples, which yielded promising results.
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Affiliation(s)
- Reham Ali
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Chemistry Department, Faculty of Science, Suez University, Suez 43518, Egypt
| | - Sayed M. Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah 51452, Saudi Arabia;
- Department of Petroleum Refining and Petrochemical Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez 43721, Egypt
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2
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He Z, Zhu J, Li X, Weng GJ, Li JJ, Zhao JW. Au@Ag Nanopencil with Au Tip and Au@Ag Rod: Multimodality Plasmonic Nanoprobe based on Asymmetric Etching for the Detection of SCN - and ClO . SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302302. [PMID: 37211700 DOI: 10.1002/smll.202302302] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2023] [Revised: 04/26/2023] [Indexed: 05/23/2023]
Abstract
In this paper, Au@Ag nanopencil is designed as a multimodality plasmonic nanoprobe based on asymmetric etching for the detection of SCN- and ClO- . Au@Ag nanopencil with Au tip and Au@Ag rod is prepared by asymmetric tailoring of uniformly grown silver-covered gold nanopyramids under the combined effect of partial galvanic replacement and redox reaction. By asymmetric etching in different systems, Au@Ag nanopencil exhibits diversified changes in the plasmonic absorption band: O2 •- facilitated by SCN- etches Au@Ag rod from the end to the tip, causing a blue shift of the localized surface plasmon resonance (LSPR) peak as the aspect ratio decreases; while the ClO- can retain Au@Ag shell and etch Ag within rod from the tip to the end, causing a redshift of the LSPR peak as the coupling resonance weakens. Based on peak shifts in different directions, a multimodality detection of SCN- and ClO- has been established. The results demonstrate the detection limits of SCN- and ClO- are 160 and 6.7 nm, and the linear ranges are 1-600 µm and 0.05-13 µm, respectively. The finely designed Au@Ag nanopencil not only broadens the horizon of designing heterogeneous structures, but also enriches the strategy of constructing multimodality sensing platform.
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Affiliation(s)
- Zhao He
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Xin Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710049, P. R. China
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3
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Borah N, Kaka MN, Tamuly C. "AND"-Logic gate-based colorimetric detection of thiocyanate in milk samples using AgNP-EBF as plasmonic nano sensor. Food Chem 2023; 425:136522. [PMID: 37295214 DOI: 10.1016/j.foodchem.2023.136522] [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: 02/01/2023] [Revised: 05/26/2023] [Accepted: 05/31/2023] [Indexed: 06/12/2023]
Abstract
At present, the uses of food additives globally are much of a concern due to their after effects upon consumption in higher proportions. Although different sensing strategies are available for their detection, a need for simple, rapid and cost-effective strategy is much of a concern. Herein, we developed a plasmonic nano sensor i.e., AgNP-EBF which was considered as the transducer component for the AND logic gate-based system with Cu2+ and thiocyanate as inputs. Optimization and detection of thiocyanates were performed through UV-visible colorimetric sensing procedures where the logic gate allowed the detection of thiocyanate in the range of 100 nM-1 µM with LOD of 53.60 nM within 5-10 min. The proposed system showed high selectivity towards the detection of thiocyanate rather than other interferences. To check the credibility of the proposed system, the logic gate was applied for detection of thiocyanates in real milk samples.
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Affiliation(s)
- Nirangkush Borah
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Maga Nana Kaka
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Chandan Tamuly
- Natural Product Chemistry Section, CSIR-North East Institute of Science and Technology. Branch Itanagar, Arunachal Pradesh 791110, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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4
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Rajendran J. Amperometric determination of salivary thiocyanate using electrochemically fabricated poly (3, 4-ethylenedioxythiophene)/MXene hybrid film. JOURNAL OF HAZARDOUS MATERIALS 2023; 449:130979. [PMID: 36801710 DOI: 10.1016/j.jhazmat.2023.130979] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/05/2023] [Accepted: 02/07/2023] [Indexed: 06/18/2023]
Abstract
Thiocyanate (SCN) is a hazardous byproduct of the detoxification of cyanide. Even in minute quantity, the SCN has a negative impact on health. Although there are several ways for SCN analysis, an efficient electrochemical procedure has hardly ever been attempted. Here, the author reports the development of a highly selective and sensitive electrochemical sensor for SCN utilizing Poly (3, 4-Ethylenedioxythiophene) incorporated MXene (PEDOT/MXene) modified screen-printed electrode (SPE). The Raman, X-ray photoelectron (XPS), and X-ray diffraction (XRD) analyses support the effective integration of PEDOT on the MXene surface. Further, scanning electron microscopy (SEM) is employed to demonstrate the formation of MXene and PEDOT/MXene hybrid film. In order to specifically detect SCN in phosphate buffer media (pH 7.4), the PEDOT/MXene hybrid film is grown on the SPE surface via the electrochemical deposition method. Under the optimized condition, the PEDOT/MXene/SPE-based sensor provides a linear response against SCN from 10 to 100 µM and 0.1 μM to 1000 μM with the lowest limit of detections (LOD) of 1.44 μM and 0.0325 μM by differential pulse voltammetry (DPV) and amperometry, respectively. For accurate detection of SCN, our newly created PEDOT/MXene hybrid film-coated SPE demonstrates excellent sensitivity, selectivity, and repeatability. Ultimately, this novel sensor can be used to detect SCN precisely in environmental and biological samples.
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Affiliation(s)
- Jerome Rajendran
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur 603203, Tamil Nadu, India.
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5
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Li W, Wang P, Chu B, Chen X, Peng Z, Chu J, Lin R, Gu Q, Lu J, Wu D. A highly-sensitive sensor based on carbon nanohorns@reduced graphene oxide coated by gold platinum core–shell nanoparticles for electrochemical detection of carbendazim in fruit and vegetable juice. Food Chem 2023; 402:134197. [DOI: 10.1016/j.foodchem.2022.134197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 10/14/2022]
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6
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Ditta SA, Yaqub A, Tanvir F, Rashid M, Ullah R, Zubair M, Ali S, Anjum KM. Gold nanoparticles capped with L-glycine, L-cystine, and L-tyrosine: toxicity profiling and antioxidant potential. JOURNAL OF MATERIALS SCIENCE 2023; 58:2814-2837. [PMID: 36743265 PMCID: PMC9888356 DOI: 10.1007/s10853-023-08209-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Accepted: 01/16/2023] [Indexed: 06/18/2023]
Abstract
Biomolecules-based surface modifications of nanomaterials may yield effective and biocompatible nanoconjugates. This study was designed to evaluate gold nanoconjugates (AuNCs) for their altered antioxidant potential. Gold nanoparticles (AuNPs) and their conjugates gave SPR peaks in the ranges of 512-525 nm, with red or blueshift for different conjugates. Cys-AuNCs demonstrated enhanced (p < 0.05) and Gly-AuNCs (p > 0.05) displayed reduced DPPH activity. Gly-AuNCs and Tyr-AuNCs displayed enhanced ferric-reducing power and hydrogen peroxide scavenging activity, respectively. Cadmium-intoxicated mice were exposed to gold nanomaterials, and the level of various endogenous parameters, i.e., CAT, GST, SOD, GSH, and MTs, was evaluated. GSH and MTs in liver tissues of the cadmium-exposed group (G2) were elevated (p < 0.05), while other groups showed nonsignificance deviations than the control group. It is concluded that these nanoconjugates might provide effective nanomaterials for biomedical applications. However, more detailed studies for their safety profiling are needed before their practical applications.
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Affiliation(s)
- Sarwar Allah Ditta
- Department of Zoology, Government College University, Lahore, 54000 Pakistan
| | - Atif Yaqub
- Department of Zoology, Government College University, Lahore, 54000 Pakistan
| | - Fouzia Tanvir
- Department of Zoology, University of Okara, Okara, 56300 Pakistan
| | - Muhammad Rashid
- Department of Zoology, Government College University, Lahore, 54000 Pakistan
| | - Rehan Ullah
- Department of Zoology, Government College University, Lahore, 54000 Pakistan
| | - Muhammad Zubair
- Department of Wildlife and Ecology, The University of Veterinary and Animal Sciences, Lahore, 54000 Pakistan
| | - Shaista Ali
- Department of Chemistry, Government College University, Lahore, 54000 Pakistan
| | - Khalid Mahmood Anjum
- Department of Wildlife and Ecology, The University of Veterinary and Animal Sciences, Lahore, 54000 Pakistan
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7
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Rahin Ahmed S, Sherazee M, Srinivasan S, Reza Rajabzadeh A. Nanozymatic detection of thiocyanate through accelerating the growth of ultra-small gold nanoparticles/graphene quantum dots hybrids. Food Chem 2022; 379:132152. [PMID: 35063843 DOI: 10.1016/j.foodchem.2022.132152] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 01/08/2023]
Abstract
Thiocyanate (SCN-) concentration monitoring in food is important to ensure the health and safety of the consumers.A colorimetric detection of thiocyanate (SCN-) based on the nanozymatic activity of gold nanoparticle-graphene quantum dots (GQDs-Au NPs) hybrids in the presence of 3,3',5,5'-tetramethylbenzidine (TMB) and H2O2 has been proposed. Here, a new synthesis method of GQDs directly from graphite was introduced. Transmission electron microscopy (TEM) images revealed that the size of the GQDs was 3-5 nm, and the emission peak appeared at 450 nm. As-synthesized GQDs was utilized to produce GQDs-Au NPs hybrids without additional chemicals. However, the presence of SCN- inhibits the growth of Au NPs, the resulting Au NPs are smaller in size. Moreover, SCN- group is well-known for hydroxyl radical (OH) scavenging activity that could oxidize TMB. Both effects boosted the nanozymatic activity of GQDs-Au NPs to detect SCN- under optimized conditions with a limit of detection (LOD) of 3 nM. Present study also validates the methodology to detect SCN- in raw milk.
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Affiliation(s)
- Syed Rahin Ahmed
- School of Engineering Practice and Technology, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada
| | - Masoomeh Sherazee
- School of Engineering Practice and Technology, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada
| | - Seshasai Srinivasan
- School of Engineering Practice and Technology, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada.
| | - Amin Reza Rajabzadeh
- School of Engineering Practice and Technology, McMaster University, 1280 Main Street West Hamilton, Ontario L8S 4L7, Canada.
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8
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Ahmed SR, Sherazee M, Srinivasan S, Rajabzadeh AR. Positively Charged Gold Quantum Dots: An Nanozymatic "Off-On" Sensor for Thiocyanate Detection. Foods 2022; 11:foods11091189. [PMID: 35563912 PMCID: PMC9099475 DOI: 10.3390/foods11091189] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/08/2022] [Accepted: 04/14/2022] [Indexed: 11/25/2022] Open
Abstract
The concentration of thiocyanate (SCN−) in bodily fluids is a good indicator of potential and severe health issues such as nasal bleeding, goiters, vertigo, unconsciousness, several inflammatory diseases, and cystic fibrosis. Herein, a visual SCN− sensing method has been developed using the enzyme-like nature of positively charged gold quantum dots (Au QDs) mixed with 3,3′,5,5′-tetramethylbenzidine (TMB) and hydrogen peroxide (H2O2). This research also reports a new method of synthesizing positively charged Au QDs directly from gold nanoparticles through a hydrothermal process. Microscopic imaging has showed that the Au QDs were 3–5 nm in size, and the emission wavelength was at 438 nm. Au QDs did not display any enzyme-like nature while mixed up with TMB and H2O2. However, the nanozymatic activity of Au QDs appeared when SCN− was included, leading to a very low detection limit (LOD) of 8 nM and 99–105% recovery in complex media. The steady-state kinetic reaction of Au QDs showed that Au QDs had a lower Michaelis–Menten constant (Km) toward H2O2 and TMB, which indicates that the Au QDs had a higher affinity for H2O2 and TMB than horseradish peroxidase (HRP). A mechanism study has revealed that the scavenging ability of hydroxyl (•OH) radicals by the SCN− group plays an important role in enhancing the sensitivity in this study. The proposed nanozymatic “Off–On” SCN− sensor was also successfully validated in commercial milk samples.
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9
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DNAzyme-controlled plasmonic coupling for SERS-based determination of Salmonella typhimurium using hybridization chain reaction self-assembled G-quadruplex. Mikrochim Acta 2022; 189:140. [PMID: 35275270 DOI: 10.1007/s00604-021-05154-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 12/19/2021] [Indexed: 10/18/2022]
Abstract
A facile and rapid SERS strategy for S. typhimurium detection based on hybridization chain reaction (HCR) self-assembled G-quadruplex DNAzyme (GQH DNAzyme)-controlled plasmonic coupling was developed. GQH DNAzyme is introduced as a biocatalyst to catalyze the oxidation of L-cysteines to cysteines (thiols to disulfides) to assist SERS signal transduction. This is the first time that the self-assembled split GQH DNAzyme-controlled plasmonic coupling is integrated with SERS sensing. The results reveal the proposed SERS strategy can quantify S. typhimurium with a wide linear range (5 to 105 cfu mL-1) and a low detection limit (4 cfu mL-1; n = 5, mean ± standard deviation) and RSD of 7%. The method exhibited preeminent detection performance in spiked samples with recoveries of 93.1-117%. The proposed strategy has great potential for being a versatile SERS platform for detecting a wide spectrum of analytes by replacing them with the corresponding recognition elements. Therefore, this study not only creates a practical platform for pathogenic bacteria identification and related food safety testing and environmental monitoring, but also provides a new paradigm for building SERS sensor. A facile and rapid SERS strategy for S. Typhimurium detection based on hybridization chain reaction (HCR) self-assembled G-quadruplex DNAzyme-controlled plasmonic coupling.
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10
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Colorimetric determination of cysteine based on Au@Pt nanoparticles as oxidase mimetics with enhanced selectivity. Mikrochim Acta 2021; 189:13. [PMID: 34870756 DOI: 10.1007/s00604-021-05091-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 11/02/2021] [Indexed: 01/03/2023]
Abstract
A H2O2-free colorimetric protocol based on urchin-like Au@Pt nanoparticles (Au@Pt NPs) has been developed for the sensitive and selective determination of cysteine (Cys). We verified the intrinsic oxidase-like activity of the Au@Pt NPs. They can act as artificial mimic oxidases to catalyse the oxidization of 3,3',5,5'-tetramethylbenzidine (TMB) with the assistance of dissolved oxygen, avoiding the use of H2O2 in the colorimetric determination of Cys. In addition, the discrimination of Cys from the other two biothiol analogues, homocysteine and glutathione, can be easily realized through a simple ageing process. HNO3 is added to this colorimetric system to terminate the reaction by oxidizing ox-TMB (oxidized form of TMB) to diphenoquinone (DPQ), thus generating a characteristic absorption peak of DPQ at 450 nm. By recording the absorbance at 450 nm, interference from the aggregated Au@Pt NPs (absorption peak at 670 nm) when 650 nm (the characteristic absorption peak of ox-TMB) is used as the absorption wavelength can be eliminated. We investigated this H2O2-free colorimetric protocol and obtained high sensitivity, with a detection limit of 1.5 nM and relatively high selectivity. The analytical performance for real samples was further explored. The Au@Pt NP-based H2O2-free colorimetric protocol is of great significance for the sensitive and selective determination of Cys in practical samples in different scenarios.
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11
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Peroxidase-Like Activity of Silver Nanoparticles Loaded Filter Paper and its Potential Application for Sensing. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02202-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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12
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Li X, Zhu H, Liu P, Wang M, Pan J, Qiu F, Ni L, Niu X. Realizing selective detection with nanozymes: Strategies and trends. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116379] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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13
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The steadfast Au@Pt soldier: Peroxide-tolerant nanozyme for signal enhancement in lateral flow immunoassay of peroxidase-containing samples. Talanta 2021; 225:121961. [DOI: 10.1016/j.talanta.2020.121961] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 11/25/2020] [Accepted: 11/30/2020] [Indexed: 02/05/2023]
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14
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Pungjunun K, Yakoh A, Chaiyo S, Praphairaksit N, Siangproh W, Kalcher K, Chailapakul O. Laser engraved microapillary pump paper-based microfluidic device for colorimetric and electrochemical detection of salivary thiocyanate. Mikrochim Acta 2021; 188:140. [PMID: 33772376 DOI: 10.1007/s00604-021-04793-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 03/18/2021] [Indexed: 11/26/2022]
Abstract
A microcapillary grooved paper-based analytical device capable of dual-mode sensing (colorimetric and electrochemical detection) was demonstrated for analysis of viscous samples (e.g., human saliva). Herein, a hollow capillary channel was constructed via laser engraved micropatterning functions as a micropump to facilitate viscous fluidic transport, which would otherwise impede analysis on paper devices. Using salivary thiocyanate as a model analyte, the proposed device was found to exhibit a promising sensing ability on paper devices without the need for sample pretreatment or bulky instrumentation, as normally required in conventional methods used for saliva analysis. An extensive linear dynamic range covering detection of salivary thiocyanate for both high and trace level regimes (5 orders of magnitude working range) was collectively achieved using the dual-sensing modes. Under optimal conditions, the limit of detection was 6 μmol L-1 with a RSD of less than 5%. An excellent stability for the μpumpPAD was also observed for over 30 days. Real sample analysis using the proposed device was found to be in line with the standard chromatographic method. Benefitting from simple fabrication and operation, portability, disposability, low sample volume (20 μL), and low cost (< 1 USD), the μpumpPAD is an exceptional alternative tool for the detection of various biomarkers in saliva specimens.
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Affiliation(s)
- Kingkan Pungjunun
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Abdulhadee Yakoh
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Sudkate Chaiyo
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
- The Institute of Biotechnology and Genetic Engineering, Chulalongkorn University, Patumwan, Bangkok, 10330, Thailand
| | - Narong Praphairaksit
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Weena Siangproh
- Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok, 10110, Thailand
| | - Kurt Kalcher
- Institute of Chemistry, Karl-Franzens University, Universitätsplatz 1, A-8010, Graz, Austria
| | - Orawon Chailapakul
- Electrochemistry and Optical Spectroscopy Center of Excellence (EOSCE), Department of Chemistry, Faculty of Science, Chulalongkorn University, Bangkok, 10330, Thailand.
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15
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Kang G, Jing Y, Liu W, Zhang C, Lu L, Chen C, Lu Y. Inhibited oxidase mimetic activity of palladium nanoplates by poisoning the active sites for thiocyanate detection. Analyst 2021; 146:1650-1655. [PMID: 33522553 DOI: 10.1039/d1an00002k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, a novel convenient colorimetric method for sensitive detection of thiocyanate (SCN-) has been developed based on its suppression of the oxidase-like activity of palladium square nanoplates on reduced graphene oxide (Pd SP@rGO). SCN- can be adsorbed onto the surface of Pd SP@rGO via binding with Pd atoms and blocks the active sites that mimic oxidase, thus inhibiting the corresponding chromogenic reaction of 3,3',5,5'-tetramethylbenzidine, which has been comprehensively revealed by the UV-vis spectra and X-ray photoelectron spectra. The color fading exhibits SCN- concentration-dependent behavior and can be easily recorded by either UV-vis spectroscopy or naked-eye observation. Therefore, both quantitative detection via measurement of the decrease in absorbance and visual detection of SCN- can be achieved. Owing to the intrinsic amplification of signals by the oxidase-like activity of Pd SP@rGO without resorting to unstable and destructive H2O2, this assay is straightforward, robust and sensitive enough for the detection of SCN- in real samples. Furthermore, an "INH" logic gate is rationally constructed based on the proposed colorimetric SCN- sensor.
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Affiliation(s)
- Ge Kang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Yijia Jing
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Wendong Liu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Chenghui Zhang
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Lixia Lu
- Shandong Provincial Key Laboratory of Animal Resistance Biology, Institute of Biomedical Sciences, Key Laboratory of Food Nutrition and Safety of Shandong Normal University, College of Life Science, Shandong Normal University, Jinan 250014, China
| | - Chuanxia Chen
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
| | - Yizhong Lu
- School of Materials Science and Engineering, University of Jinan, Jinan 250022, China.
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16
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AuPeroxidase nanozymes: Promises and applications in biosensing. Biosens Bioelectron 2021; 175:112882. [DOI: 10.1016/j.bios.2020.112882] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/30/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023]
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17
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Zhao Y, Fu Q, Cui X, Chi H, Lu Y, Liu X, Yu M, Fei Q, Feng G, Shan H, Huan Y. A colorimetric sensor for detecting thiourea based on inhibiting peroxidase-like activity of gold-platinum nanoparticles. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2021; 13:1069-1074. [PMID: 33576364 DOI: 10.1039/d0ay02283g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this study, gold-platinum nanoparticles (Au@PtNPs) with peroxidase-like activity were synthesized. In the absence of thiourea (TU), the Au@PtNPs can catalyze the decomposition of hydrogen peroxide, and oxidize 3,3',5,5'-tetramethylbenzidine dihydrochloride (TMB, colorless) into oxidized 3,3',5,5'-tetramethylbenzidine dihydrochloride (oxTMB, blue). The peroxidase-like activity of the Au@PtNPs is inhibited in the presence of TU, and TMB cannot be oxidized to oxTMB effectively, and no blue color could be observed. Based on this finding, a novel colorimetric sensor for detecting TU is proposed. The absorbance response curve showed a good linearity for the concentration of TU in the range of 10 nmol L-1 to 10 μmol L-1 with a correlation coefficient of R2 = 0.999, and the limit of detection is 9.57 nmol L-1. The colorimetric sensor possesses excellent selectivity, anti-interference ability, and application value in actual samples.
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Affiliation(s)
- Yuqi Zhao
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Qingjie Fu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Xiaoqian Cui
- Department of Emergency and Critical Care, The Second Hospital of Jilin University, Changchun 130041, People's Republic of China
| | - Hui Chi
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Yongzhuang Lu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Xiaoli Liu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Miao Yu
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Qiang Fei
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Guodong Feng
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Hongyan Shan
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
| | - Yanfu Huan
- College of Chemistry, Jilin University, Changchun 130023, People's Republic of China.
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18
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Green Synthesis of Gold Nanoparticles Obtained from Algae Sargassum cymosum: Optimization, Characterization and Stability. BIONANOSCIENCE 2020. [DOI: 10.1007/s12668-020-00776-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Cui X, Wei T, Hao M, Qi Q, Wang H, Dai Z. Highly sensitive and selective colorimetric sensor for thiocyanate based on electrochemical oxidation-assisted complexation reaction with Gold nanostars etching. JOURNAL OF HAZARDOUS MATERIALS 2020; 391:122217. [PMID: 32062538 DOI: 10.1016/j.jhazmat.2020.122217] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 05/18/2023]
Abstract
In this work, we developed an electrochemical oxidation-assisted complexation strategy for highly sensitive and selective detection of thiocyanate (SCN-). Gold nanostars (AuNSs) with uniform and sharp tips were first prepared, and we found they can be quickly etched to gold nanoparticles (AuNPs) under electrochemical oxidation with the existence of halide and halogen-like ions. Through introducing SCN--selective molecule: zinc phthalocyanine (ZnPc), the fabricated ZnPc-AuNSs/ITO electrode can rapidly and selectively response to SCN- under electrochemical oxidation, manifesting as a noticeable change in color from navy blue to red. Thus SCN- concentration can be easily reflected. The wide wavelength tuning range of AuNSs to AuNPs make the ZnPc-AuNSs/ITO sensor obtain a much wider detection range for SCN- (10 nM to 80 mM) than most other reported studies. In addition, the detection limit is as low as 3 nM. It renders the sensor to be easily used in much diluted matrixes, which can further lower the interference. We further applied the colorimetric sensor to SCN- detection in wastewater and milk, excellent performance was obtained. The proposed electrochemical oxidation-assisted complexation strategy will have good promise in developing colorimetric sensors with high selectivity and wide detection range, and will display more useful application in environmental monitoring.
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Affiliation(s)
- Xinwen Cui
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Tianxiang Wei
- School of Environment, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Mengyuan Hao
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Qi Qi
- School of Environment, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Huafeng Wang
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China
| | - Zhihui Dai
- Jiangsu Collaborative Innovation Centre of Biomedical Functional Materials and Jiangsu Key Laboratory of Biofunctional Materials, School of Chemistry and Materials Science, Nanjing Normal University, Nanjing, 210023, People's Republic of China; Nanjing Normal University Center for Analysis and Testing, Nanjing, 210023, People's Republic of China.
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20
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Zhao Y, Liu R, Cui X, Fu Q, Yu M, Fei Q, Feng G, Shan H, Huan Y. Colorimetric Sensor for Thiocyanate Based on Anti-aggregation of Gold Nanoparticles in the Presence of 2-Aminopyridine. ANAL SCI 2020; 36:1165-1169. [PMID: 32336728 DOI: 10.2116/analsci.20p035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Based on the anti-aggregation mechanism of citrate stabilized gold nanoparticle (AuNPs), a new specific and sensitive colorimetric sensor for thiocyanate (SCN-) was developed. In this scheme, the AuNPs were aggregated in the presence of the aggregating agent 2-aminopyridine (2-AP) due to electrostatic attraction. The solution color changed from red to blue. When SCN- was present, SCN- formed a sulfur-gold bond with the AuNPs to protect the AuNPs from aggregation. Thiocyanate can be detected by the color change of the solution from blue to red. The results showed that the absorbance ratio A675/A520 was linear with the concentration of SCN- in the range of 0.4 - 1.2 μmol L-1 by UV-Vis spectroscopy. The limit of detection (LOD) of this assay was 0.37 μmol L-1. The system also had excellent selectivity and anti-interference ability. In addition, this method was successfully used for the detection of SCN- in actual water samples and achieved good results.
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Affiliation(s)
- Yuqi Zhao
- College of Chemistry, Jilin University
| | - Ruxin Liu
- College of Chemistry, Jilin University
| | - Xiaoqian Cui
- Department of Emergency and Critical Care, The Second Hospital of Jilin University
| | | | - Miao Yu
- College of Chemistry, Jilin University
| | - Qiang Fei
- College of Chemistry, Jilin University
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21
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Colorimetric determination of Pb 2+ ions based on surface leaching of Au@Pt nanoparticles as peroxidase mimic. Mikrochim Acta 2020; 187:255. [PMID: 32239351 DOI: 10.1007/s00604-020-04234-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Accepted: 03/24/2020] [Indexed: 12/17/2022]
Abstract
We report the first use of metallic nanozyme as colorimetric probe for Pb2+ determination. The method is based on the surface leaching of Au@PtNP nanozyme by Pb2+-S2O32- ions, accompanied by a decreased catalytic activity of the metallic nanozyme. To construct this colorimetric determination, the Pt deposition onto the AuNPs was carefully investigated and other experimental factors including kind of substrate and buffer were optimized. With increasing Pb2+ concentration, the catalytic activity of the Au@PtNPs decreased gradually. As a result, the blue color at 650 nm from the oxidation of 3,3',5,5'-tetramethylbenzidine by H2O2 faded gradually. A determination limit of 3.0 nM Pb2+ with a linear range from 20 to 800 nM was obtained. The assay demonstrated negligible response to common metal ions even at elevated concentrations. This colorimetric method was applied to the determination of Pb2+ ions spiked in lake water samples, and good recoveries (96.8-105.2%) were obtained. The above results indicate the potential application of metallic nanozymes in developing robust colorimetric assays. Graphical abstract Schematic representation of the surface leaching of Au@PtNP nanozyme by Pb2+-S2O32- ions, accompanying the decreased catalytic activity of the metallic nanozyme.
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22
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Zhang W, Wu W, Cai C, Hu X, Li H, Bai Y, Zhang Z, Li P. A Sensitive, Point-of-Care Detection of Small Molecules Based on a Portable Barometer: Aflatoxins In Agricultural Products. Toxins (Basel) 2020; 12:158. [PMID: 32138273 PMCID: PMC7150834 DOI: 10.3390/toxins12030158] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/28/2020] [Accepted: 03/01/2020] [Indexed: 12/22/2022] Open
Abstract
Sensitive and point-of-care detection of small toxic molecules plays a key role in food safety. Aflatoxin, a typical small toxic molecule, can cause serious healthcare and economic issues, thereby promoting the development of sensitive and point-of-care detection. Although ELISA is one of the official detection methods, it cannot fill the gap between sensitivity and point-of-care application because it requires a large-scale microplate reader. To employ portable readers in food safety, Pt-catalysis has attracted increasing attention due to its portability and reliability. In this study, we developed a sensitive point-of-care aflatoxin detection (POCAD) method via a portable handheld barometer. We synthesized and characterized Au@PtNPs and Au@PtNPs conjugated with a second antibody (Au@PtNPs-IgG). A competitive immunoassay was established based on the homemade monoclonal antibody against aflatoxins. Au@PtNPs-IgG was used to catalyze the production of O2 from H2O2 in a sealed vessel. The pressure of O2 was then recorded by a handheld barometer. The aflatoxin concentration was inversely proportional to the pressure recorded via the barometer reading. After optimization, a limit of detection of 0.03 ng/mL and a linear range from 0.09 to 16.0 ng/mL were achieved. Recovery was recorded as 83.1%-112.0% along with satisfactory results regarding inner- and inter-assay precision (relative standard deviation, RSD < 6.4%). Little cross-reaction was observed. Additionally, the POCAD was validated by high-performance liquid chromatography (HPLC) by using peanut and corn samples. The portable POCAD exhibits strong potential for applications in the on-site detection of small toxic molecules to ensure food safety.
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Affiliation(s)
- Weiqi Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
| | - Wenqin Wu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
| | - Chong Cai
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
| | - Xiaofeng Hu
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China
- National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan 430062, China
| | - Hui Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China
- National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan 430062, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China
- Laboratory of Risk Assessment for Oilseeds Products, Wuhan, Ministry of Agriculture, Wuhan 430062, China
| | - Yizhen Bai
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
| | - Zhaowei Zhang
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China
- National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan 430062, China
- Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China
- Laboratory of Risk Assessment for Oilseeds Products, Wuhan, Ministry of Agriculture, Wuhan 430062, China
| | - Peiwu Li
- Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China; (W.Z.); (W.W.); (C.C.); (X.H.); (H.L.); (Y.B.); (P.L.)
- Key Laboratory of Detection for Mycotoxins, Ministry of Agriculture, Wuhan 430062, China
- National Reference Laboratory for Agricultural Testing (Biotoxin), Wuhan 430062, China
- Laboratory of Risk Assessment for Oilseeds Products, Wuhan, Ministry of Agriculture, Wuhan 430062, China
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23
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Wang Z, Dong B, Cui X, Fan Q, Huan Y, Shan H, Feng G, Fei Q. Core-shell Au@Pt Nanoparticles Catalyzed Luminol Chemiluminescence for Sensitive Detection of Thiocyanate. ANAL SCI 2020; 36:1045-1051. [PMID: 32115463 DOI: 10.2116/analsci.19p475] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In this study, core-shell Au@Pt nanoparticles (Au@Pt NPs) with peroxidase catalytic activity were synthesized by the seed-mediated method, and were used to catalyze the reaction of luminol-H2O2 to enhance the chemiluminescence (CL) intensity. It was found that thiocyanate (SCN-) can effectively inhibit the catalytic activity of Au@Pt NPs. Based on this phenomenon, a method to detect SCN- by using the Au@Pt NPs-catalytic luminol-H2O2 CL system was established, which has an ultra-low detection limit and an ultra-wide linear range, as well as the advantages of being simple and having low-cost and convenient operation. The research mechanism indicated that SCN- could be adsorbed on the surface of Au@Pt NPs and occupies the active sites of Pt nanostructures, which led to a decrease in the amount of Pt0 and a loss of the excellent catalytic activity of Au@Pt NPs. After optimizing the experimental conditions, this assay for detecting SCN- exhibited a good linear range from 5 to 180 nM, and the low detection limit was 2.9 nM. In addition, this approach has been successfully applied to the detection of SCN- in tap-water samples, which has practical application value and embodies good development prospects.
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Affiliation(s)
- Ze Wang
- Department of Analytical Chemistry, College of Chemistry, Jilin University
| | - Bin Dong
- Department of Analytical Chemistry, College of Chemistry, Jilin University
| | - Xiaoqian Cui
- Department of Emergency and Critical Care, the Second Hospital of Jilin University
| | | | - Yanfu Huan
- Department of Analytical Chemistry, College of Chemistry, Jilin University
| | - Hongyan Shan
- Department of Analytical Chemistry, College of Chemistry, Jilin University
| | - Guodong Feng
- Department of Analytical Chemistry, College of Chemistry, Jilin University
| | - Qiang Fei
- Department of Analytical Chemistry, College of Chemistry, Jilin University
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24
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Lei T, Huang T, Wang T, Yu P, Qing T, Nie B. Nano-fluorescent probes based on DNA-templated copper nanoclusters for fast sensing of thiocyanate. NEW J CHEM 2020. [DOI: 10.1039/d0nj03742g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A fast and label-free fluorescent sensor was developed to determine SCN−via inhibiting the formation of DNA-templated copper nanoclusters (CuNCs).
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Affiliation(s)
- Tao Lei
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Ting Huang
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Tianze Wang
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Peng Yu
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Taiping Qing
- College of Environment and Resources
- Xiangtan University
- Xiangtan 411105
- P. R. China
| | - Beixi Nie
- School of Materials Science and Engineering
- Xiangtan University
- Xiangtan 411105
- P. R. China
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25
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26
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Li J, Cha R, Luo H, Hao W, Zhang Y, Jiang X. Nanomaterials for the theranostics of obesity. Biomaterials 2019; 223:119474. [PMID: 31536920 DOI: 10.1016/j.biomaterials.2019.119474] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 02/06/2023]
Abstract
As a chronic and lifelong disease, obesity not only significant impairs health but also dramatically shortens life span (at least 10 years). Obesity requires a life-long effort for the successful treatment because a number of abnormalities would appear in the development of obesity. Nanomaterials possess large specific surface area, strong absorptivity, and high bioavailability, especially the good targeting properties and adjustable release rate, which would benefit the diagnosis and treatment of obesity and obesity-related metabolic diseases. Herein, we discussed the therapy and diagnosis of obesity and obesity-related metabolic diseases by using nanomaterials. Therapies of obesity with nanomaterials include improving intestinal health and reducing energy intake, targeting and treating functional cell abnormalities, regulating redox homeostasis, and removing free lipoprotein in blood. Diagnosis of obesity-related metabolic diseases would benefit the therapy of these diseases. The development of nanomaterials will promote the diagnosis and therapy of obesity and obesity-related metabolic diseases.
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Affiliation(s)
- Juanjuan Li
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Ruitao Cha
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China.
| | - Huize Luo
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Wenshuai Hao
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Yan Zhang
- Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100032, PR China.
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China; Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, PR China; University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, PR China.
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27
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Yang T, Zuo Y, Zhang Y, Gou Z, Wang X, Lin W. Novel fluorene-based fluorescent probe with excellent stability for selective detection of SCN - and its applications in paper-based sensing and bioimaging. J Mater Chem B 2019; 7:4649-4654. [PMID: 31364673 DOI: 10.1039/c9tb00742c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
SCN- is one of the most important anions in metabolic processes. However, the investigation of SCN- in living systems is restricted by the lack of stable functional molecular tools. Herein, the first fluorene-based polymer fluorescent probe V1 was synthesized through rational design. Compared with small molecule fluorescent probes, V1 exhibited excellent fluorescence stability in bovine serum albumin (BSA) solution. Furthermore, the V1-based paper sensor was highly selective toward SCN- in aqueous solution. Significantly, these merits of the probe V1 enable the detection of SCN- in different living cell lines and zebrafish.
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Affiliation(s)
- Tingxin Yang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Yujing Zuo
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Yu Zhang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Zhiming Gou
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Xiaoni Wang
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
| | - Weiying Lin
- Institute of Fluorescent Probes for Biological Imaging, School of Materials Science and Engineering, School of Chemistry and Chemical Engineering, University of Jinan, Jinan, Shandong 250022, P. R. China.
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28
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Pourreza N, Abdollahzadeh R. Colorimetric sensing of palladium ions based on in situ generation of palladium nanoparticles as an activator for the thionine-hydrazine reaction. Talanta 2019; 196:211-216. [PMID: 30683353 DOI: 10.1016/j.talanta.2018.12.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 12/13/2018] [Accepted: 12/15/2018] [Indexed: 01/20/2023]
Abstract
In this article, a simple and rapid colorimetric sensing method was developed for the determination of palladium ions. The method is based on in situ generation of palladium nanoparticles (PdNPs) upon reduction by hydrazine which then acts as an activator on the reduction reaction of thionine by hydrazine. The formation of PdNPs was characterized by UV-Vis spectrophotometry, particle size analysis and TEM images. The reaction was followed by measuring the thionine absorbance at 599 nm with time. Several factors influencing analytical performance of the kinetic method such as concentration of reactants and electrolyte, pH of the sample solution and temperature were investigated to achieve the optimum conditions and highest sensitivity. This method showed a linear calibration curve in the concentration range of 8-1200 ng mL-1 for palladium ions. The limit of detection (LOD) was 6.5 ng mL-1 and the relative standard deviations were 3.8% and 1.3% (n = 8) for two palladium ion concentrations of 60 and 300 ng mL-1, respectively. The method was successfully applied to the determination of palladium in river water, pond water, wastewater and soil samples.
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Affiliation(s)
- Nahid Pourreza
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
| | - Rezvan Abdollahzadeh
- Department of Chemistry, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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29
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Ultrasensitive and recyclable superstructure of Au SiO2@Ag wire for surface-enhanced Raman scattering detection of thiocyanate in urine and human serum. Anal Chim Acta 2019; 1049:179-187. [DOI: 10.1016/j.aca.2018.10.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Revised: 10/12/2018] [Accepted: 10/18/2018] [Indexed: 11/17/2022]
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30
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Sun Y, Wang R, Liu X, Shan G, Chen Y, Tong T, Liu Y. Laser-induced formation of Au/Pt nanorods with peroxidase mimicking and SERS enhancement properties for application to the colorimetric determination of H 2O 2. Mikrochim Acta 2018; 185:445. [PMID: 30178206 DOI: 10.1007/s00604-018-2981-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 08/24/2018] [Indexed: 01/12/2023]
Abstract
Platinum nanoparticles (PtNPs) were uniformly grown on the surface of gold nanorods (AuNRs) by a laser irradiation procedure. Transmission electron microscopy confirmed that the PtNPs are uniformly grown on the surface of the AuNRs. The formation of PtNPs on the AuNRs leads to a red-shift of the absorption maximum from 734 nm to 766 nm. In addition, the efficiency of surface enhanced Raman scattering (SERS) is increased, but the photothermal conversion efficiency is decreased compared to pure AuNRs. The result indicates that electron transfer occurs between gold and platinum. The peroxidase mimicking effect of PtNPs, AuNRs and Au/Pt NRs by catalyzing the oxidation of colorless 3,3',5,5'-tetramethylbenzidine (TMB) to blue oxidized 3,3',5,5'-tetramethylbenzidine (oxTMB; a quinone) in the presence of H2O2. The catalytic activity of Au/Pt NRs is higher than that of sole AuNRs or PtNPs by factors of 4.2 and 2.1, respectively. Thus, Au/Pt NRs have been used for the detection of peroxide and the limit of detection is 0.04 μM. This work provides an approach to integrate the peroxidase mimicking effect with SERS enhancement for potential application in detection. Graphical abstract A schematic diagram for the laser-induced growth of Au/Pt NRs and the colorimetric determination of hydrogen peroxide concentration with their peroxidase mimicking properties. The limit of detection is 0.04 μM based on the use of Au/Pt NRs as a catalyst.
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Affiliation(s)
- Ying Sun
- Centre for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Ruixue Wang
- Centre for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Xuan Liu
- National Demonstration Center for Experimental Physics Education, Northeast Normal University, Changchun, 130024, China
| | - Guiye Shan
- Centre for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun, 130024, China. .,National Demonstration Center for Experimental Physics Education, Northeast Normal University, Changchun, 130024, China.
| | - Yanwei Chen
- Centre for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
| | - Ti Tong
- The second hospital of Jilin University, Changchun, China.
| | - Yichun Liu
- Centre for Advanced Optoelectronic Functional Materials Research, Key Laboratory for UV Light-Emitting Materials and Technology of the Ministry of Education, Northeast Normal University, Changchun, 130024, China
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Ponnaiah SK, Prakash P, Vellaichamy B, Paulmony T, Selvanathan R. Picomolar-level electrochemical detection of thiocyanate in the saliva samples of smokers and non-smokers of tobacco using carbon dots doped Fe3O4 nanocomposite embedded on g-C3N4 nanosheets. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.07.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Detection of urinary spermine by using silver-gold/silver chloride nanozymes. Anal Chim Acta 2018; 1009:89-97. [DOI: 10.1016/j.aca.2018.01.018] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Revised: 12/13/2017] [Accepted: 01/09/2018] [Indexed: 11/19/2022]
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33
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Fernández-Ponce C, Muñoz-Miranda JP, de los Santos DM, Aguado E, García-Cozar F, Litrán R. Influence of size and surface capping on photoluminescence and cytotoxicity of gold nanoparticles. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2018; 20:305. [PMID: 30524191 PMCID: PMC6244783 DOI: 10.1007/s11051-018-4406-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 10/24/2018] [Indexed: 05/09/2023]
Abstract
Hydrophilic and homogeneous sub-10 nm blue light-emitting gold nanoparticles (NPs) functionalized with different capping agents have been prepared by simple chemical routes. Structure, average, size, and surface characteristics of these NPs have been widely studied, and the stability of colloidal NP solutions at different pH values has been evaluated. Au NPs show blue PL emission, particularly in the GSH capped NPs, in which the thiol-metal core transference transitions considerably enhance the fluorescent emission. The influence of capping agent and NP size on cytotoxicity and on the fluorescent emission are analyzed and discussed in order to obtain Au NPs with suitable features for biomedical applications. Cytotoxicity of different types of gold NPs has been determined using NPs at high concentrations in both tumor cell lines and primary cells. All NPs used show high biocompatibility with low cytotoxicity even at high concentration, while Au-GSH NPs decrease viability and proliferation of both a tumor cell line and primary lymphocytes.
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Affiliation(s)
- Cecilia Fernández-Ponce
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cádiz, Spain
- Institute of Biomedical Research Cádiz (INIBICA), Cádiz, Spain
| | - Juan P. Muñoz-Miranda
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cádiz, Spain
- Institute of Biomedical Research Cádiz (INIBICA), Cádiz, Spain
| | - Desiré M. de los Santos
- Department of Physical Chemistry and Instituto de Microscopía Electronica y Materiales (IMEYMAT), University of Cádiz, Cádiz, Puerto Real Spain
| | - Enrique Aguado
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cádiz, Spain
- Institute of Biomedical Research Cádiz (INIBICA), Cádiz, Spain
| | - Francisco García-Cozar
- Department of Biomedicine, Biotechnology and Public Health, University of Cadiz, Cádiz, Spain
- Institute of Biomedical Research Cádiz (INIBICA), Cádiz, Spain
| | - Rocío Litrán
- Institute of Biomedical Research Cádiz (INIBICA), Cádiz, Spain
- Department of Condensed Matter Physics and Instituto de Microscopía Electronica y Materiales (IMEYMAT), University of Cádiz, Cádiz, Puerto Real Spain
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