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Shoup DN, Fan S, Zapata-Herrera M, Schorr HC, Aizpurua J, Schultz ZD. Comparison of Gap-Enhanced Raman Tags and Nanoparticle Aggregates with Polarization Dependent Super-Resolution Spectral SERS Imaging. Anal Chem 2024. [PMID: 38958534 DOI: 10.1021/acs.analchem.4c01564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Strongly confined electric fields resulting from nanogaps within nanoparticle aggregates give rise to significant enhancement of surface-enhanced Raman scattering (SERS). Nanometer differences in gap sizes lead to drastically different confined field strengths; so much attention has been focused on the development and understanding of nanostructures with controlled gap sizes. In this work, we report a novel petal gap-enhanced Raman tag (GERT) consisting of a bipyramid core and a nitrothiophenol (NTP) spacer to support the growth of hundreds of small petals and compare its SERS emission and localization to a traditional bipyramid aggregate. To do this, we use super resolution spectral SERS imaging that simultaneously captures the SERS images and spectra while varying the incident laser polarization. Intensity fluctuations inherent of SERS enabled super resolution algorithms to be applied, which revealed subdiffraction limited differences in the localization with respect to polarization direction for both particles. Interestingly, however, only the traditional bipyramid aggregates experienced a strong polarization dependence in their SERS intensity and in the plasmon-induced conversion of NTP to dimercaptoazobenzene (DMAB), which was localized with nanometer precision to regions of intense electromagnetic fields. The lack of polarization dependence (validated through electromagnetic simulations) and surface reactions from the bipyramid-GERTs suggests that the emissions arising from the bipyramid-GERTs are less influenced by confined fields.
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Affiliation(s)
- Deben N Shoup
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Sanjun Fan
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Mario Zapata-Herrera
- Center for Materials Physics in San Sebastián (CSIC-UPV/EHU), Donostia-San Sebastián 20018, Spain
- Donostia International Physics Center, Donostia-San Sebastián 20018, Spain
| | - Hannah C Schorr
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Javier Aizpurua
- Donostia International Physics Center, Donostia-San Sebastián 20018, Spain
- Ikerbasque, Basque Foundation for Science, 48009 Bilbao, Spain
- Department of Electricity and Electronics, University of the Basque Country UPV/EHU, ESP, 48940 Leioa, Spain
| | - Zachary D Schultz
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
- Comprehensive Cancer Center, The Ohio State University, Columbus, Ohio 43210, United States
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Wang J, Zhou Q, Fan C, Guo X, Bei J, Chen T, Yang J, Yao Y. Ultrasensitive and specific photoelectrochemical sensor for hydrogen peroxide detection based on pillar[5]arene-functionalized Au nanoparticles and MWNTs hybrid BiOBr heterojunction. Mikrochim Acta 2024; 191:266. [PMID: 38625578 DOI: 10.1007/s00604-024-06302-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/05/2024] [Indexed: 04/17/2024]
Abstract
A photoelectrochemical sensor for target detection of hydrogen peroxide was designed based on a new heterojunction nanocomposite which was sulfhydryl-borate ester-modified A1/B1-type pillar[5]arene (BP5)-functionalized Au NPs and multi-walled carbon nanotubes hybridized with bismuth bromide oxide (Au@BP5/MWNTs-BiOBr). The specific sensor was based on the direct induction of oxidation by hydrogen peroxide of the borate ester group of pillar[5]arene. Additionally, the local surface plasmon resonance (LSPR) of Au NPs enhanced visible light capture, the host-guest complexation of BP5 with H2O2 enhanced photocurrent response, the layer-by-layer stacked nanoflower structure of BiOBr provided large specific surface area with more active sites, and the conductivity of MWNTs enhanced the charge separation efficiency and significantly improves the stability of PEC. Their synthesis effect significantly increased the photocurrent signal and further enhanced the detection result. Under the optimal conditions, the linear concentration range of H2O2 detected by the Au@BP5/MWNTs-BiOBr sensor was from 1 to 60 pmol/L. The limit of detection (LOD) and the limit of quantification (LOQ) of the method were 0.333 pmol/L and 1 pmol/L, respectively, and the sensitivity was 6.471 pmol/L. Importantly, the PEC sensor has good stability, reproducibility, and interference resistance and can be used for the detection of hydrogen peroxide in real cells.
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Affiliation(s)
- Jin Wang
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China
| | - Qixiang Zhou
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China
| | - Chun Fan
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China
| | - Xu Guo
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China
| | - Jiali Bei
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China
| | - Tingting Chen
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China.
| | - Juan Yang
- Nantong City Center for Disease Control and Prevention, Nantong, 226019, China
| | - Yong Yao
- College of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019, People's Republic of China.
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3
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Park EJ, Ha TH. Pb 2+ Ion Sensors Employing Gold Etching Process: Comparative Investigation on Au Nanorods and Au Nanotriangles. SENSORS (BASEL, SWITZERLAND) 2024; 24:497. [PMID: 38257590 PMCID: PMC10820728 DOI: 10.3390/s24020497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
The leaching phenomenon of gold (Au) nanomaterials by Pb2+ ions in the presence of 2-mercaptoethanol (2-ME) and thiosulfate (S2O32- ion) has been systematically applied to a Pb2+ ion sensor. To further investigate the role of Pb2+ ions in sensors containing Au nanomaterials, we revisited the leaching conditions for Au nanorods and compared them with the results for Au nanotriangles. By monitoring the etching rate, it was revealed that Pb2+ ions were important for the acceleration of the etching rate mainly driven by 2-ME and S2O32- pairs, and nanomolar detection of Pb2+ ions were shown to be promoted through this catalytic effect. Using the etchant, the overall size of the Au nanorods decreased but showed an unusual red-shift in UV-Vis spectrum indicating increase of aspect ratio. Indeed, the length of Au nanorods decreased by 9.4% with the width decreasing by 17.4% over a 30-min reaction time. On the other hand, the Au nanotriangles with both flat sides surrounded mostly by dense Au{111} planes showed ordinary blue-shift in UV-Vis spectrum as the length of one side was reduced by 21.3%. By observing the changes in the two types of Au nanomaterials, we inferred that there was facet-dependent alloy formation with lead, and this difference resulted in Au nanotriangles showing good sensitivity, but lower detection limits compared to the Au nanorods.
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Affiliation(s)
- Eun Jin Park
- Core Research Facility and Analysis Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;
- Department of Nanobiotechnology, KRIBB School of Biotechnology, Korea National University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Tai Hwan Ha
- Core Research Facility and Analysis Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea;
- Department of Nanobiotechnology, KRIBB School of Biotechnology, Korea National University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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4
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Tang M, Zhang L, Song X, Zhao L. Developing an Electrochemically Reversible Switch for Modulating the Optical Signal of Gold Nanoparticles. Molecules 2023; 28:6233. [PMID: 37687062 PMCID: PMC10488341 DOI: 10.3390/molecules28176233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 08/17/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
Gold nanoparticles (AuNPs) possess remarkable optical properties and electrical conductivity, making them highly relevant in various fields such as medical diagnoses, biological imaging, and electronic sensors. However, the existing methods for modulating the optical properties of AuNPs are often under limitations such as a high cost, the complexity of detection, a narrow range of application settings, and irreversibility. In this study, we propose a novel approach to address these challenges by constructing a reversible electrochemical switch. The switch (ITO-OMAD) involves covalently linking nitroxide radicals and AuNPs (AuNPs-NO•), followed by tethering this nanocomposite to a siloxane-derived indium tin oxide (ITO) electrode. By simply electrochemically oxidizing/reducing the nitroxide units, one is able to reversibly modulate the optical properties of AuNPs at will. The surface morphology and structure of the as-prepared ITO-OMAD electrode were characterized through scanning electron microscopy (SEM) and cyclic voltammetry (CV). SEM imaging confirmed the successful anchoring of AuNPs on the ITO electrode. Electrochemical tests performed in the three-electrode system demonstrated that the local surface plasmon resonance (LSPR) of AuNPs can be reversibly regulated by alternatively imposing ± 0.5V (vs. Ag/AgCl) to the modified electrode. The development of this electrochemical switch presents a novel approach to effectively control the optical properties of AuNPs. The further exploration and utilization of this reversible electrochemical switch could significantly enhance the versatility and practicality of AuNPs in numerous applications.
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Affiliation(s)
| | | | | | - Long Zhao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China; (M.T.); (L.Z.); (X.S.)
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Diffusion of gold nanoparticles in porous silica monoliths determined by dynamic light scattering. J Colloid Interface Sci 2023; 641:251-264. [PMID: 36933471 DOI: 10.1016/j.jcis.2023.03.045] [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: 01/11/2023] [Revised: 02/21/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
HYPOTHESIS The applicability of the dynamic light scattering method for the determination of particle diffusivity under confinement without applying refractive index matching was not adequately explored so far. The confinement effect on particle diffusion in a porous material which is relevant for particle chromatography has also not yet been fully characterized. EXPERIMENTS Dynamic light scattering experiments were performed for unimodal dispersions of 11-mercaptoundecanoic acid-capped gold nanoparticles. Diffusion coefficients of gold nanoparticles in porous silica monoliths were determined without limiting refractive index matching fluids. Comparative experiments were also performed with the same nanoparticles and porous silica monolith but applying refractive index matching. FINDINGS Two distinct diffusivities could be determined inside the porous silica monolith, both smaller than that in free media, showing a slowing-down of the diffusion processes of nanoparticles under confinement. While the larger diffusivity can be related to the slightly slowed-down diffusion of particles in the bulk of the pores and in the necks connecting individual pores, the smaller diffusivity might be related to the diffusion of particles near the pore walls. It shows that the dynamic light scattering method with a heterodyne detection scheme can be used as a reliable and competitive tool for determining particle diffusion under confinement.
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Rajamanikandan R, Shanmugaraj K, Ilanchelian M, Ju H. Cysteamine-decorated gold nanoparticles for plasmon-based colorimetric on-site sensors for detecting cyanide ions using the smart-phone color ratio and for catalytic reduction of 4-nitrophenol. CHEMOSPHERE 2023; 316:137836. [PMID: 36642146 DOI: 10.1016/j.chemosphere.2023.137836] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 12/12/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
In this paper, we have reported the cyanide ions (CN-) sensing in environmental water samples using cysteamine-capped gold nanoparticles (Cyst-AuNPs) by spectrophotometric, colorimetric, and smartphone-based RGB color detection. The surface plasmon resonance shift at around 525 nm for the Cyst-AuNPs could be used to detect quantitatively the amounts of CN- with concomitant alteration of their color from wine red to purple visualized by the naked eye. For the first time, the Cyst-AuNPs-based visual sensing of CN- was performed using smartphone-based detection with its detection limit of 159 × 10-9 M, ten times lower than that of the highest tolerance level (2 × 10-6 M) permitted by the world health organization. The Cyst-AuNPs displayed excellent specificity for detecting the concentration of 30 × 10-6 M even amid the presence of other interfering inorganic anions with their concentrations about five times higher than it. Environmental real water samples were used to arrange the three different CN- concentrations for plasmon-based colorimetric detection and smartphone-based method. Additionally, the catalytic performance of Cyst-AuNPs was demonstrated for the fast catalytic conversion of hazardous 4-nitrophenol (selected environmental contaminant) to the analogous amino aromatic compounds. A chemical kinetic study showed the conversion rate to be estimated as 1.65 × 10-2 s-1. Cyst-AuNPs can find an application in colorimetric sensing of CN- while being able to be utilized as a catalytic nanomaterial for ecological remedies associated with health care.
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Affiliation(s)
| | - Krishnamoorthy Shanmugaraj
- Advanced Ceramics and Nanotechnology Laboratory, Department of Materials Engineering, Universidad de Concepción, Concepción, Chile; Faculty of Engineering and Science, Universidad Adolfo Ibáñez, Diagonal Las Torres, 2640, Peñalolén, Santiago, Chile
| | | | - Heongkyu Ju
- Department of Physics, Gachon University, Seongnam-si, 13120, Republic of Korea.
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7
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Li M, Huang R, Liao X, Zhou Z, Zou L, Liu B. An inner filter effect-based fluorescent aptasensor for sensitive detection of kanamycin in complex samples using gold nanoparticles and graphene oxide quantum dots. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:843-848. [PMID: 36722858 DOI: 10.1039/d2ay01794f] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
In this work, a label-free fluorescent aptasensor based on the inner filter effect (IFE) between gold nanoparticles (AuNPs) and graphene oxide quantum dots (GOQDs) was developed for the detection of kanamycin in complex samples. AuNPs are capable of functioning as the fluorescence absorber of GOQDs because of the complementary overlap between their absorption spectra and the emission spectra of GOQDs. AuNPs can effectively quench the fluorescence of GOQDs via the IFE and modulate it with their aggregation state. In the presence of kanamycin, the aptamer is released from the surface of AuNPs, leading to their salt-induced aggregation and the fluorescence recovery of GOQDs. Under the optimum conditions, the fluorescence intensity of GOQDs was linearly proportional to the concentration of kanamycin over the range from 5 to 600 nM, with a detection limit of 3.6 nM. Moreover, the fluorescent aptasensor was successfully applied for kanamycin detection in complex samples (milk, honey and serum), which might hold great promise for kanamycin detection in food safety control and clinical research.
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Affiliation(s)
- Mengyan Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Ruoying Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Xiaofei Liao
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Zidan Zhou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
| | - Li Zou
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510699, PR China
| | - Bing Liu
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, PR China.
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510699, PR China
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8
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Rajamanikandan R, Sasikumar K, Kosame S, Ju H. Optical Sensing of Toxic Cyanide Anions Using Noble Metal Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13020290. [PMID: 36678042 PMCID: PMC9863761 DOI: 10.3390/nano13020290] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/05/2023] [Accepted: 01/05/2023] [Indexed: 06/12/2023]
Abstract
Water toxicity, one of the major concerns for ecosystems and the health of humanity, is usually attributed to inorganic anions-induced contamination. Particularly, cyanide ions are considered one of the most harmful elements required to be monitored in water. The need for cyanide sensing and monitoring has tempted the development of sensing technologies without highly sophisticated instruments or highly skilled operations for the objective of in-situ monitoring. Recent decades have witnessed the growth of noble metal nanomaterials-based sensors for detecting cyanide ions quantitatively as nanoscience and nanotechnologies advance to allow nanoscale-inherent physicochemical properties to be exploited for sensing performance. Particularly, noble metal nanostructure e-based optical sensors have permitted cyanide ions of nanomolar levels, or even lower, to be detectable. This capability lends itself to analytical application in the quantitative detection of harmful elements in environmental water samples. This review covers the noble metal nanomaterials-based sensors for cyanide ions detection developed in a variety of approaches, such as those based on colorimetry, fluorescence, Rayleigh scattering (RS), and surface-enhanced Raman scattering (SERS). Additionally, major challenges associated with these nano-platforms are also addressed, while future perspectives are given with directions towards resolving these issues.
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9
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Lin J, Li H, Guo J, Xu Y, Li H, Yan J, Wang Y, Chen H, Yuan Z. Potential of fluorescent nanoprobe in diagnosis and treatment of Alzheimer's disease. Nanomedicine (Lond) 2022; 17:1191-1211. [PMID: 36154269 DOI: 10.2217/nnm-2022-0022] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Alzheimer's disease (AD) is well known for its insidious nature, slow progression and high incidence as a neurodegenerative disease. In the past, diagnosis of AD mainly depended on analysis of a patient's cognitive ability and behavior. Without a unified standard for analysis methods, this is prone to produce incorrect diagnoses. Currently, definitive diagnosis mainly relies on histopathological examination. Because of the advantages of precision, noninvasiveness, low toxicity and high spatiotemporal resolution, fluorescent nanoprobes are suitable for the early diagnosis of AD. This review summarizes the research progress of different kinds of fluorescent nanoprobes for AD diagnosis and therapy in recent years and provides an outlook on the development prospects of fluorescent nanoprobes.
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Affiliation(s)
- Jingjing Lin
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Hanhan Li
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Jingxuan Guo
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Yue Xu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Hua Li
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Jun Yan
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Yuxin Wang
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Haiyan Chen
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
| | - Zhenwei Yuan
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, 639 Longmian Road, Jiangning District, Nanjing, 210009, China
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Geleta GS. A colorimetric aptasensor based on gold nanoparticles for detection of microbial toxins: an alternative approach to conventional methods. Anal Bioanal Chem 2022; 414:7103-7122. [PMID: 35902394 DOI: 10.1007/s00216-022-04227-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 11/01/2022]
Abstract
Frequent contamination of foods with microbial toxins produced by microorganisms such as bacteria, fungi, and algae represents an increasing public health problem that requires the development of quick and easy tools to detect them at trace levels. Recently, it has been found that colorimetric detection methods may replace traditional methods in the field because of their ease of use, quick response, ease of manufacture, low cost, and naked-eye visibility. Therefore, it is suitable for fieldwork, especially for work in remote areas of the world. However, the development of colorimetric detection methods with low detection limits is a challenge that limits their wide applicability in the detection of food contaminants. To address these challenges, nanomaterial-based transduction systems are used to construct colorimetric biosensors. For example, gold nanoparticles (AuNPs) provide an excellent platform for the development of colorimetric biosensors because they offer the advantages of easy synthesis, biocompatibility, advanced surface functionality, and adjustable physicochemical properties. The selectivity of the colorimetric biosensor can be achieved by the combination of aptamers and gold nanoparticles, which provides an unprecedented opportunity to detect microbial toxins. Compared to antibodies, aptamers have significant advantages in the analysis of microbial toxins due to their smaller size, higher binding affinity, reproducible chemical synthesis and modification, stability, and specificity. Two colorimetric mechanisms for the detection of microbial toxins based on AuNPs have been described. First, sensors that use the localized surface plasmon resonance (LSPR) phenomenon of gold nanoparticles can exhibit very strong colors in the visible range because of changes caused by aggregation or disaggregation. Second, the detection mechanism of AuNPs is based on their enzyme mimetic properties and it is possible to construct a colorimetric biosensor based on the 3,3',5,5'-tetramethylbenzidine/Hydrogen peroxide, TMB/H2O2 reaction to detect microbial toxins. Therefore, this review summarizes the recent applications of AuNP-based colorimetric aptasensors for detecting microbial toxins, including bacterial toxins, fungal toxins, and algal toxins focusing on selectivity, sensitivity, and practicality. Finally, the most important current challenges in this field and future research opportunities are discussed.
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Affiliation(s)
- Girma Salale Geleta
- Department of Chemistry, College of Natural Sciences, Salale University, P.O. Box 245, Oromia, Fiche, Ethiopia.
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11
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Occurrence, analysis and removal of pesticides, hormones, pharmaceuticals, and other contaminants in soil and water streams for the past two decades: a review. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04778-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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12
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Wu GY, Zheng W, Yang XL, Liu QJ, Cheng L. Supramolecular Metallacycle-Assisted Interfacial Self-Assembly: A Promising Method of Fabricating Gold Nanoparticle Monolayers with Precise Interparticle Spacing for Tunable SERS Activity. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Decorating rare-earth fluoride upconversion nanoparticles on AuNRs@Ag core–shell structure for NIR light-mediated photothermal therapy and bioimaging. J RARE EARTH 2022. [DOI: 10.1016/j.jre.2021.01.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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14
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Zhang D, Jiang N, Li P, Zhang Y, Sun S, Mao J, Liu S, Wei W. Detection of monoamine oxidase B using dark-field light scattering imaging and colorimetry. Chem Commun (Camb) 2022; 58:12329-12332. [DOI: 10.1039/d2cc05139g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Detection of MAO-B using dark-field light scattering imaging and colorimetry based on localized surface plasmon resonance induced by silver deposited gold nanostars.
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Affiliation(s)
- Duoduo Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
- School of Pharmacy, Changzhou University, Changzhou, 213164, P. R. China
| | - Nan Jiang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Peng Li
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, P. R. China
| | - Yusheng Zhang
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Shihao Sun
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, P. R. China
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, 450001, P. R. China
| | - Songqin Liu
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
| | - Wei Wei
- Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing, 211189, P. R. China
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15
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Xing L, Li D, Chen B, Gan H, Zhong Y. Theoretical and in vivo investigations of morphology and concentration of gold nanoparticles for laser surgery. Lasers Surg Med 2021; 54:433-446. [PMID: 34605557 DOI: 10.1002/lsm.23482] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/12/2021] [Accepted: 09/14/2021] [Indexed: 11/11/2022]
Abstract
BACKGROUND AND OBJECTIVE Precise control of the thermal damage is critical during thermal therapy with the assistance of gold nanoparticles, which depends on the laser parameters and characteristics of gold nanoparticles. However, the current understanding of the relationship between the gold nanoparticles/incident laser light and the efficiency of photothermal therapy is limited, which should be studied systematically. MATERIALS AND METHODS In this study, theoretical simulations were conducted to investigate the influence of laser wavelength, the size and shape of gold nanoparticles, and the distance of the particle in complex nanostructures on the optical properties and temperature distribution after laser irradiation, aiming to achieve maximum photothermal conversion efficiency and therapeutic effect during the laser treatment of port wine stains. Thereafter, gold nanoparticles were prepared and in vivo experiments were conducted to evaluate the effect on thermal damage of blood vessels. RESULTS For the laser wavelength at 532 nm, gold nanospheres with diameters of 20 nm are ideal in terms of temperature rise. The optimized particle distance is 5 nm and the corresponding concentration is 0.26 mg/ml. For Nd:YAG laser at 1064 nm, gold nanorods with an aspect ratio of 6.3 and an effective radius of 12.7 nm are the most effective photothermal agents. The optimized particle distance is 4 nm, yielding the optimal concentration of 0.017 mg/ml. In vivo results demonstrated that using gold nanoparticles following our simulations as photothermal agents can greatly enhance the thermal damage of diseased blood vessels, reducing the laser energy and laser pulses required for the obvious thermal response of blood vessels. CONCLUSION For different laser wavelengths used in clinics in the near future, theoretical models presented in this study can be employed to obtain the morphology of single gold nanoparticle and the concentration of nanoparticles solutions, thereby obtaining the optimal photothermal conversion and enhanced thermal damage assisted by gold nanoparticles.
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Affiliation(s)
- Linzhuang Xing
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China.,School of Advanced Materials and Nanotechnology, Xidian University, Xi'an, China
| | - Dong Li
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Bin Chen
- State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University, Xi'an, China
| | - Hongwan Gan
- Department of Dermatology, Ganzhou People's Hospital, Ganzhou, Jiangxi, China
| | - Yu Zhong
- Department of Dermatology, Ganzhou People's Hospital, Ganzhou, Jiangxi, China
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16
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Advances in aptamer-based sensing assays for C-reactive protein. Anal Bioanal Chem 2021; 414:867-884. [PMID: 34581827 DOI: 10.1007/s00216-021-03674-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 09/13/2021] [Accepted: 09/16/2021] [Indexed: 12/28/2022]
Abstract
C-reactive protein (CRP), a non-specific acute-phase indicator of inflammation, has been widely recognized for its value in clinical diagnostic applications. With the advancement of testing technologies, there have been many reports on fast, simple, and reliable methods for CRP testing. Among these, the aptamer-based biosensors are the focus and hotspot of research for achieving high-sensitivity analysis of CRP. This review summarizes the progress of in vitro aptamer screening for CRP and the recent advances in aptamer-based CRP sensor applications, thus developing insight for the new CRP aptasensor design strategy.
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17
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Hsieh WY, Lin CH, Lin TC, Lin CH, Chang HF, Tsai CH, Wu HT, Lin CS. Development and Efficacy of Lateral Flow Point-of-Care Testing Devices for Rapid and Mass COVID-19 Diagnosis by the Detections of SARS-CoV-2 Antigen and Anti-SARS-CoV-2 Antibodies. Diagnostics (Basel) 2021; 11:1760. [PMID: 34679458 PMCID: PMC8534532 DOI: 10.3390/diagnostics11101760] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 08/26/2021] [Accepted: 09/10/2021] [Indexed: 12/15/2022] Open
Abstract
The COVID-19 pandemic is an ongoing global pandemic caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in 2020-2021. COVID-19 is becoming one of the most fatal pandemics in history and brings a huge challenge to the global healthcare system. Opportune detection, confinement, and early treatment of infected cases present the first step in combating COVID-19. Diagnosis via viral nucleic acid amplification tests (NAATs) is frequently employed and considered the standard procedure. However, with an increasing urge for point-of-care tests, rapid and cheaper immunoassays are widely utilized, such as lateral flow immunoassay (LFIA), which can be used for rapid, early, and large-scale detection of SARS-CoV-2 infection. In this narrative review, the principle and technique of LFIA applied in COVID-19 antigen and antibody detection are introduced. The diagnostic sensitivity and specificity of the commercial LFIA tests are outlined and compared. Generally, LFIA antigen tests for SARS-CoV-2 are less sensitive than viral NAATs, the "gold standard" for clinical COVID-19 diagnosis. However, antigen tests can be used for rapid and mass testing in high-risk congregate housing to quickly identify people with COVID-19, implementing infection prevention and control measures, thus preventing transmission. LFIA anti-SARS-CoV-2 antibody tests, IgM and/or IgG, known as serology tests, are used for identification if a person has previously been exposed to the virus or vaccine immunization. Notably, advanced techniques, such as LFT-based CRISPR-Cas9 and surface-enhanced Raman spectroscopy (SERS), have added new dimensions to the COVID-19 diagnosis and are also discussed in this review.
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Affiliation(s)
- Wen-Yeh Hsieh
- Department of Internal Medicine, Division of Chest Medicine, Hsinchu Mackay Memorial Hospital, Hsinchu 30068, Taiwan;
| | - Cheng-Han Lin
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan; (C.-H.L.); (C.-H.L.); (H.-F.C.); (C.-H.T.)
| | - Tzu-Ching Lin
- Department of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan;
| | - Chao-Hsu Lin
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan; (C.-H.L.); (C.-H.L.); (H.-F.C.); (C.-H.T.)
- Department of Pediatrics, Hsinchu Mackay Memorial Hospital, Hsinchu 30071, Taiwan
| | - Hui-Fang Chang
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan; (C.-H.L.); (C.-H.L.); (H.-F.C.); (C.-H.T.)
- Department of Internal Medicine, Division of Endocrinology, Hsinchu Mackay Memorial Hospital, Hsinchu 30071, Taiwan
| | - Chin-Hung Tsai
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan; (C.-H.L.); (C.-H.L.); (H.-F.C.); (C.-H.T.)
- Department of Internal Medicine, Division of Pulmonary Medicine, Tungs’ Taichung Metro Harbor Hospital, Taichung 43503, Taiwan
| | - Hsi-Tien Wu
- Department of BioAgricultural Sciences, College of Agriculture, National Chiayi University, Chiayi 60004, Taiwan;
| | - Chih-Sheng Lin
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan; (C.-H.L.); (C.-H.L.); (H.-F.C.); (C.-H.T.)
- Department of Biological Science and Technology, National Chiao Tung University, Hsinchu 30068, Taiwan
- Center for Intelligent Drug Systems and Smart Bio-Devices (IDS2B), National Yang Ming Chiao Tung University, Hsinchu 30068, Taiwan
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18
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Ma Q, Wang M, Cai H, Li F, Fu S, Liu Y, Zhao Y. A sensitive and rapid detection of glutathione based on a fluorescence-enhanced "turn-on" strategy. J Mater Chem B 2021; 9:3563-3572. [PMID: 33909744 DOI: 10.1039/d1tb00232e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Glutathione (GSH) plays important roles in the human body including protecting cells from oxidative damages and maintaining cellular redox homeostasis. Thus, developing a fast and sensitive method for detecting GSH levels in living bodies is of great importance. Many methods have been developed and used for GSH detection, such as high-performance liquid chromatography, capillary electrophoresis, and fluorescence resonance energy-based methods. However, these methods often lack sensitivity as well as efficiency. Herein, a rapid and sensitive method for glutathione detection was developed based on a fluorescence-enhanced "turn-on" strategy. In this study, a unique and versatile bifunctional linker 3-[(2-aminoethyl) dithio]propionic acid (AEDP)-modified gold nanoparticle (Au@PLL-AEDP-FITC) probe was designed for the simple, highly sensitive intracellular GSH detection, combined with the FRET technique. In the presence of GSH, the disulfide bonds of AEDP on Au@PLL-AEDP-FITC were broken through competition with GSH, and FITC was separated from gold nanoparticles, making the fluorescence signal switch to the "turn on" state. A change in the fluorescence signal intensity has a great linear positive correlation with GSH concentration, in the linear range from 10 nM to 180 nM (R2 = 0.9948), and the limit of detection (LOD) of 3.07 nM, which was lower than other reported optical nanosensor-based methods. Au@PLL-AEDP-FITC also has great selectivity for GSH, making it promising for application in complex biological systems. The Au@PLL-AEDP-FITC probe was also successfully applied in intracellular GSH imaging in HeLa cells with confocal microscopy. In short, the Au@PLL-AEDP-FITC probe-based fluorescence-enhanced "turn-on" strategy is a sensitive, fast, and effective method for GSH detection as compared with other methods. It can be applied in complex biological systems such as cell systems, with promising biological-medical applications in the future.
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Affiliation(s)
- Qianru Ma
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Minning Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Huahuan Cai
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Fulai Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Songsen Fu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yan Liu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China
| | - Yufen Zhao
- Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China. and Department of Chemical Biology, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, P. R. China and The Key Laboratory for Chemical Biology of Fujian Province, Xiamen University, Xiamen, Fujian 361005, P. R. China and Institute of Drug Discovery Technology, Ningbo University, Ningbo, Zhejiang 315221, P. R. China
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19
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Simone G. Surface plasmon resonance study for a reliable determination of the affinity constant of multivalent grafted beads. SOFT MATTER 2021; 17:7047-7057. [PMID: 34251388 DOI: 10.1039/d1sm00591j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In this study, galactose-grafted beads were prepared using the main design principle of the cluster effect. Galactose was chosen as the sugar for investigation because it acts as the main building block of long glycan chains and because a simple and fast protocol is still required for its immobilization. For the analysis, the lectin, ligand of the galactose, was immobilized on a gold plasmonic substrate. After preliminary characterization of the galactose-grafted beads, the investigation of the surface plasmon surface behavior of the system was carried out, for studying the affinity constant of the multivalent beads. The results of steady-state and of the kinetics analysis evidenced a higher affinity of the galactose-grafted beads over the beadless galactose solution. For the association kinetics analysis, a Langmuir isotherm was applied to the data. The analysis of the rate of dissociation evidenced the most important differences between the two samples, based on the more difficult release of the galactose-grafted beads during washing. To confirm the influence of the glycoside cluster effect, a low-density lectin substrate was tested, and the results evidenced that the characteristic size of the molecules determines a threshold for the cluster density. The calculated detection limit and dissociation constants were 3.5 μM and 40.2 μM, respectively. Considering those results, the evaluation of the affinities toward the receptors depends on the cluster density and then, it should be designed for mimicking the biological samples.
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Affiliation(s)
- Giuseppina Simone
- The Ministry of Education Key Laboratory of Micro/Nano Systems for Aerospace, School of Mechanical Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an, Shaanxi 710072, People's Republic of China.
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20
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Pancaro A, Szymonik M, Georgiou PG, Baker AN, Walker M, Adriaensens P, Hendrix J, Gibson MI, Nelissen I. The polymeric glyco-linker controls the signal outputs for plasmonic gold nanorod biosensors due to biocorona formation. NANOSCALE 2021; 13:10837-10848. [PMID: 34114594 PMCID: PMC8223873 DOI: 10.1039/d1nr01548f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 06/03/2021] [Indexed: 05/13/2023]
Abstract
Gold nanorods (GNRs) are a promising platform for nanoplasmonic biosensing. The localised surface plasmon resonance (LSPR) peak of GNRs is located in the near-infrared optical window and is sensitive to local binding events, enabling label-free detection of biomarkers in complex biological fluids. A key challenge in the development of such sensors is achieving target affinity and selectivity, while both minimizing non-specific binding and maintaining colloidal stability. Herein, we reveal how GNRs decorated with galactosamine-terminated polymer ligands display significantly different binding responses in buffer compared to serum, due to biocorona formation, and how biocorona displacement due to lectin binding plays a key role in their optical responses. GNRs were coated with either poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA) or poly(N-hydroxyethyl acrylamide) (PHEA) prepared via reversible addition-fragmentation chain-transfer (RAFT) polymerisation and end-functionalised with galactosamine (Gal) as the lectin-targeting unit. In buffer Gal-PHEA-coated GNRs aggregated upon soybean agglutinin (SBA) addition, whereas Gal-PHPMA-coated GNRs exhibited a red-shift of the LSPR spectrum without aggregation. In contrast, when incubated in serum Gal-PHPMA-coated nanorods showed no binding response, while Gal-PHEA GNRs exhibited a dose-dependent blue-shift of the LSPR peak, which is the opposite direction (red-shift) to what was observed in buffer. This differential behaviour was attributed to biocorona formation onto both polymer-coated GNRs, shown by differential centrifugal sedimentation and nanoparticle tracking analysis. Upon addition of SBA to the Gal-PHEA coated nanorods, signal was generated due to displacement of weakly-bound biocorona components by lectin binding. However, in the case of Gal-PHPMA which had a thicker corona, attributed to lower polymer grafting densities, addition of SBA did not lead to biocorona displacement and there was no signal output. These results show that plasmonic optical responses in complex biological media can be significantly affected by biocorona formation, and that biocorona formation itself does not prevent sensing so long as its exact nature (e.g. 'hard versus soft') is tuned.
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Affiliation(s)
- Alessia Pancaro
- Health Unit, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, BE-2400, Belgium. and Dynamic Bioimaging Lab, Advanced Optical Microscopy Centre and Biomedical Research Institute, Hasselt University, Agoralaan C, Diepenbeek, BE-3590, Belgium
| | - Michal Szymonik
- Health Unit, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, BE-2400, Belgium.
| | - Panagiotis G Georgiou
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
| | - Alexander N Baker
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
| | - Marc Walker
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Peter Adriaensens
- Applied and Analytical Chemistry, Institute for Materials Research, Hasselt University, Agoralaan D, Diepenbeek, BE-3590, Belgium
| | - Jelle Hendrix
- Dynamic Bioimaging Lab, Advanced Optical Microscopy Centre and Biomedical Research Institute, Hasselt University, Agoralaan C, Diepenbeek, BE-3590, Belgium
| | - Matthew I Gibson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK. and Warwick Medical School, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
| | - Inge Nelissen
- Health Unit, Flemish Institute for Technological Research (VITO), Boeretang 200, Mol, BE-2400, Belgium.
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21
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Yano-Ozawa Y, Lobsiger N, Muto Y, Mori T, Yoshimura K, Yano Y, Stark WJ, Maeda M, Asahi T, Ogawa A, Zako T. Molecular detection using aptamer-modified gold nanoparticles with an immobilized DNA brush for the prevention of non-specific aggregation. RSC Adv 2021; 11:11984-11991. [PMID: 35423740 PMCID: PMC8696536 DOI: 10.1039/d0ra05149g] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 03/15/2021] [Indexed: 12/12/2022] Open
Abstract
Gold nanoparticles (AuNPs) are often used for biosensing. In particular, aptamer-modified AuNPs are often used for colorimetric molecular detection, where target molecule-induced AuNP aggregates can be recognized by a color change from red to blue. However, non-specific aggregation could be induced by various compounds, leading to false-positive results. In this work we employed high-density ssDNA modification on the AuNP surface to prevent non-specific aggregation. The covalently immobilized DNA brush was used as an anchor for an aptamer specific for the target molecule. Herein, as a proof-of-concept study, we demonstrated detection of estradiol (E2), one of the endocrine-disrupting estrogen molecules as a model target, in the presence of antibiotic kanamycin (KN) as a model of co-contaminating compounds that induce non-specific aggregation of AuNPs. We also developed a smartphone dark field microscope (DFM) to visualize AuNP aggregation. Our previous study demonstrated that the observation of light scattering by AuNP aggregates with DFM can be applied for versatile molecular detection. In this work, we could successfully detect E2 with the smartphone DFM, and the results were verified by the results from a conventional benchtop DFM. This study would contribute to the future field applicability of AuNP-based sensors. We demonstrated molecular detection using aptamer-modified gold nanoparticles with DNA-brush for the prevention of non-specific aggregation and smartphone darkfield microscopy.![]()
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Affiliation(s)
- Yuki Yano-Ozawa
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Nadine Lobsiger
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan .,Institute for Chemical and Bioengineering, ETH Zürich Wolfgang-Pauli-Strasse 10 CH-8093 Zürich Switzerland
| | - Yu Muto
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan .,Tokyo Research Center, TOSOH Corporation 2743-1 Hayakawa Ayase Kanagawa 252-1123 Japan
| | - Takahiro Mori
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Ken Yoshimura
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Yuki Yano
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Wendelin Jan Stark
- Institute for Chemical and Bioengineering, ETH Zürich Wolfgang-Pauli-Strasse 10 CH-8093 Zürich Switzerland
| | - Mizuo Maeda
- Bioengineering Laboratory, RIKEN Cluster for Pioneering Research 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Tsuyoshi Asahi
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Atsushi Ogawa
- Proteo-Science Center, Ehime University 3 Bunkyo Matsuyama Ehime 790-8577 Japan
| | - Tamotsu Zako
- Department of Chemistry and Biology, Graduate School of Science and Engineering, Ehime University 2-5 Bunkyo Matsuyama Ehime 790-8577 Japan
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22
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Li J, Zhao YX, Wu Q, Yang H, Lu J, Ma HY, Wang SN, Li YW. A Cd-MOF fluorescence sensor with dual functional sites for efficient detection of metal ions in multifarious water environments. CrystEngComm 2021. [DOI: 10.1039/d1ce01308d] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A 2D MOF displays high performance luminescence quenching for detecting Fe3+ and Cu2+ in pure water, actual river water and simulated HEPES with superior low LODs. Multiple experiments and DFT calculations co-verify a weak interaction quenching mechanism.
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Affiliation(s)
- Jing Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Yun-Xiu Zhao
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Qian Wu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Hua Yang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Jing Lu
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Hui-Yan Ma
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Su-Na Wang
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
| | - Yun-Wu Li
- Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, and School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252000, P. R. China
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23
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Vlasko-Vlasov VK, Sulwer M, Shevchenko EV, Parker J, Kwok WK. Ring patterns generated by an expanding colloidal meniscus. Phys Rev E 2020; 102:052608. [PMID: 33327138 DOI: 10.1103/physreve.102.052608] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 11/06/2020] [Indexed: 11/07/2022]
Abstract
The drop-and-dry is a common technique allowing for creation of periodic nanoparticle (NP) structures for sensing, photonics, catalysis, etc. However, the reproducibility and scalability of this approach for fabrication of NP-based structures faces serious challenges due to the complexity of the simple, at first glance, evaporation process. In this work we study the effect of the spatial confinement on the NP self-assembly under slow solvent evaporation, when the air-liquid-substrate contact line (CL) expands from the center towards the walls of a cylindrical cell, forming a toroid. Using in situ video monitoring of the stick-slip CL motion, we find regular hydrodynamic perturbations in the meniscus, and reveal fine details of the formation of quasiperiodic rings of close packed NP layers. We report that drying of the toroidal NP droplet has a number of important differences from drying of the classical hemispherical colloidal drops. In toroidal drops we observe linear-in-time average meniscus motion, in contrast to the hemispherical drops where the meniscus moves as a square root of time. While both droplet geometries produce NP ring patterns, the ring width for the toroidal drop decreases with increasing ring radius, while it decreases with decreasing the radius of the hemispherical drop. We suggest that free ligands are the main cause of the Marangoni instabilities driving the periodic vorticity in the meniscus. In addition, we show that the usually ignored contact line tension may yield a considerable contribution to the CL pinning causing the CL slip-stick motion and the ring formation.
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Affiliation(s)
- V K Vlasko-Vlasov
- Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - M Sulwer
- Department of Physics, Lewis University, Romeoville, Illinois 60446, USA
| | - E V Shevchenko
- Argonne National Laboratory, Center for Nanoscale Materials, Argonne, Illinois 60439, USA
| | - J Parker
- Department of Physics, Lewis University, Romeoville, Illinois 60446, USA
| | - W K Kwok
- Materials Sciences Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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24
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Osman MJ, Wan Yunus WMZ, Ong KK, Chieng BW, Mohd Kassim NA, Mohd Noor SA, Feizal Knight V, Abd Rashid JI, Teoh CC. Image Digitization of Colorimetric Detection of Acephate Based on Its Complexation with Citrate-Capped Gold Nanoparticles. J CHEM-NY 2020; 2020:1-10. [DOI: 10.1155/2020/8872048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
Abstract
Acephate (Ac), an organophosphate (OP) insecticide, is very harmful to human and the environment. Conventional techniques of detection are sensitive and selective but relatively time-consuming, expensive, and require trained personnel. This paper describes the use of an image processing technique to digitize the red values (RVs) of the colour image of Ac-capped gold nanoparticles (Ac-Cit-AuNPs) complex captured using a digital microscope to improve the detection accuracy and precision. The formation of the suspension was characterised using laser test, ultraviolet-visible spectrophotometer (UV-Vis), high-resolution transmission electron microscope (HRTEM), and Fourier Transform infrared spectroscope (FTIR). The linear regression analysis revealed that the detection sensitivity improved as the smaller gold nanoparticles were used. For quantitative measurement using image processing, a good linear relationship (R2 = 0.9905 and 0.9924) for Cit-HAuNPs and Cit-MAuNPs, respectively, between the concentration of Ac and average red values was obtained in the range of 0–8 mM. The limit of detection (LOD) for Ac was found to be 0.3 mM and 0.4 mM for Cit-MAuNPs and Cit-HAuNPs, respectively.
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Affiliation(s)
- Mohd Junaedy Osman
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Wan Md Zin Wan Yunus
- Centre for Tropicalisation, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Keat Khim Ong
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
- Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Buong Woei Chieng
- Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Noor Azilah Mohd Kassim
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
- Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Siti Aminah Mohd Noor
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Victor Feizal Knight
- Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Jahwarhar Izuan Abd Rashid
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia, Kem Sg Besi, Kuala Lumpur 57000, Malaysia
| | - Chin Chuang Teoh
- Engineering Research Centre, MARDI Headquarter Serdang, Serdang 43400, Selangor, Malaysia
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25
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Sun Y, Kuo C, Lu C, Lin C. Review of recent advances in improved lateral flow immunoassay for the detection of pathogenic
Escherichia
coli
O157
:
H7
in foods. J Food Saf 2020. [DOI: 10.1111/jfs.12867] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Yu‐Ling Sun
- Aquatic Technology Laboratories Agricultural Technology Research Institute Hsinchu Taiwan
| | - Chiu‐Mei Kuo
- Bioresource Collection and Research Center Food Industry Research and Development Institute Hsinchu Taiwan
| | - Chung‐Lun Lu
- Aquatic Technology Laboratories Agricultural Technology Research Institute Hsinchu Taiwan
| | - Chih‐Sheng Lin
- Department of Biological Science and Technology National Chiao Tung University Hsinchu Taiwan
- Center for Intelligent Drug Systems and Smart Bio‐devices (IDS2B) National Chiao Tung University Hsinchu Taiwan
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26
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Tian M, Yuan Z, Liu Y, Lu C, Ye Z, Xiao L. Recent advances of plasmonic nanoparticle-based optical analysis in homogeneous solution and at the single-nanoparticle level. Analyst 2020; 145:4737-4752. [PMID: 32500906 DOI: 10.1039/d0an00609b] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Plasmonic nanoparticles with special localized surface plasmon resonance (LSPR) characters have been widely applied for optical sensing of various targets. With the combination of single nanoparticle imaging techniques, dynamic information of reactions and biological processes is obtained, facilitating the deep understanding of their principle and design of outstanding nanomaterials. In this review, we summarize the recently adopted optical analysis of diverse analytes based on plasmonic nanoparticles both in homogeneous solution and at the single-nanoparticle level. A brief introduction of LSPR is first discussed. Colorimetric and fluorimetric homogeneous detection examples by using different sensing mechanisms and strategies are provided. Single plasmonic nanoparticle-based analysis is concluded in two aspects: visualization of chemical reactions and understanding of biological processes. The basic sensing mechanisms and performances of these systems are introduced. Finally, this review highlights the challenges and future trend of plasmonic nanoparticle-based optical analysis systems.
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Affiliation(s)
- Mingce Tian
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Zhiqin Yuan
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Ying Liu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
| | - Zhongju Ye
- College of Chemistry, Nankai University, Tianjin, 300071, China.
| | - Lehui Xiao
- College of Chemistry, Nankai University, Tianjin, 300071, China.
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27
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Yang H, Yang Y, Liu S, Zhan X, Zhou H, Li X, Yuan Z. Ratiometric and sensitive cyanide sensing using dual-emissive gold nanoclusters. Anal Bioanal Chem 2020; 412:5819-5826. [PMID: 32666140 DOI: 10.1007/s00216-020-02806-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 06/30/2020] [Accepted: 07/06/2020] [Indexed: 02/07/2023]
Abstract
The detection of cyanide anion (CN-), a highly toxic pollutant, has attracted growing attention in the past years. In this work, a nanosensor composed of hyperbranched polyethyleneimine (hPEI)-assisted dual-emissive gold nanoclusters (DE-Au NCs) is proposed for ratiometric detection of CN- based on surface valence state-driving etch. The ratiometric color change of fluorescence is based on a fact that the red-emissive Au NCs with a high content of surface Au(I) can be easily etched by CN-, while the blue-emissive Au NCs with nearly neutral character can resist CN-. Because of the specific gold-CN- chemistry and electrostatic attraction between the positively charged hPEI protecting layer and the negatively charged CN-, the DE-Au NC-based nanosensor provides high selectivity toward CN- over other anions with a limit of detection of 10 nM. Practical application of the proposed DE-Au NC nanosensor is verified by satisfying recoveries of CN- determination in river water and urine samples. Graphical abstract.
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Affiliation(s)
- Hongwei Yang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yang Yang
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Shilei Liu
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China
| | - Xingxiao Zhan
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - He Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiaosen Li
- State Key Laboratory of NBC Protection for Civilian, Beijing, 102205, China.
| | - Zhiqin Yuan
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, China.
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28
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Colorimetric aggregation assay based on array of gold and silver nanoparticles for simultaneous analysis of aflatoxins, ochratoxin and zearalenone by using chemometric analysis and paper based analytical devices. Mikrochim Acta 2020; 187:167. [PMID: 32055989 DOI: 10.1007/s00604-020-4147-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/25/2020] [Indexed: 01/09/2023]
Abstract
A paper based sensor array is presented to discriminate and determine five mycotoxins classified into three categories, namely aflatoxins, ochratoxins and zearalenone. The gold and silver nanoparticles, synthesized by three different reducing or capping agents, were employed as sensing elements of the fabricated device. These nanoparticles were poured onto hydrophilic circular zones embedded on the hydrophobic substrate. The response of the assay is dependent on the aggregation of nanoparticles for interaction with mycotoxins. Due to aggregation, the gold and silver nanoparticles changed to purple and brown, respectively. Color changes provide unique colorimetric signatures conducive to recognizing the type of mycotoxin, identifying its chemical structure, and finding the fungi that produce it. The discrimination ability of the assay was investigated by both supervised (linear discriminate analysis) and unsupervised (principle component analysis and hierarchical cluster analysis) pattern recognition methods. The assay was applied to the point of need determination of aflatoxin B1, aflatoxin G1, aflatoxin M1, ochratoxin A and zearalenone with a detection limit of 2.7, 7.3, 2.1, 3.3 and 7.0 ng.mL-1, respectively. The fabricated device has high potential of simultaneously determining the mycotoxins in pistachio, wheat, coffee and milk with the help of partial least square method. The root mean square errors for prediction of PLS model were 5.7, 5.2, 1.5, 7.2 and 2.9 for aflatoxin B1, aflatoxin G1, aflatoxin M1, ochratoxin A and zearalenone, respectively. Graphical abstractSchematic representation of paper based colorimetric sensor array based on gold and silver nanoparticles for both qualitative and quantitative analysis of aflatoxins, ochratoxin and zearalenone.
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Zhou H, Yang H, Wang G, Gao A, Yuan Z. Recent Advances of Plasmonic Gold Nanoparticles in Optical Sensing and Therapy. Curr Pharm Des 2020; 25:4861-4876. [DOI: 10.2174/1381612826666191219130033] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Accepted: 11/26/2019] [Indexed: 12/11/2022]
Abstract
:
Gold nanoparticles with special surface plasmon resonance have been widely used in sensing and
therapy because of their easy preparation, unique optical properties, excellent biocompatibility, etc. The applications
of gold nanoparticles in chemo/biosensing, imaging, and therapy reported in 2016-2019, are summarized in
this review. Regarding the gold nanoparticle-based sensing or imaging, sensing mechanisms and strategies are
provided to illustrate the concepts for designing sensitive and selective detection platforms. Gold nanoparticlemediated
therapy is introduced by surface plasmon resonance-based therapy and delivery-based therapy. Beyond
the sole therapeutic system, platforms through synergistic therapy are also discussed. In the end, discussion of the
challenges and future trends of gold nanoparticle-based sensing and therapy systems is described.
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Affiliation(s)
- He Zhou
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Hongwei Yang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Guangke Wang
- Global Energy Interconnection Research Institute Co. Ltd, Beijing 102211, China
| | - Aijun Gao
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zhiqin Yuan
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
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Rajamanikandan R, Lakshmi AD, Ilanchelian M. Smart phone assisted, rapid, simplistic, straightforward and sensitive biosensing of cysteine over other essential amino acids by β-cyclodextrin functionalized gold nanoparticles as a colorimetric probe. NEW J CHEM 2020. [DOI: 10.1039/d0nj02152k] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein, we have attempted the synthesis of β-CD functionalized AuNPs and then applied them as a colorimetric assay for the quantification of Cys over other different essential amino acids.
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31
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Li B, Qin L, Zhou J, Cai X, Lai G, Yu A. Hybridization chain reaction-enhanced enzyme biomineralization for ultrasensitive colorimetric biosensing of a protein biomarker. Analyst 2019; 144:5003-5009. [PMID: 31332403 DOI: 10.1039/c9an00898e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
By employment of an aptamer-initiated hybridization chain reaction (HCR) to enhance the enzyme biomineralization of cupric subcarbonate, this work develops a novel colorimetric biosensing method for protein analysis. The HCR product was used to specifically attach a large amount of urease-functionalized gold nanoparticles (Au NPs) for the preparation of a gold nanoprobe. After the sandwich biorecognition reactions, this nanoprobe could be quantitatively captured onto the antibody-functionalized magnetic bead (MB) platform. Then, numerous copper ions would be enriched onto the MB surface through the urease-induced biomineralization of cupric subcarbonate. Based on the complete release of Cu2+ ions for the sensitive copper chromogenic reaction, convenient colorimetric signal transduction was thus achieved for the quantitative analysis of the target analyte of the carcinoembryonic antigen. The HCR product provides a large number of biotin sites for the attachment of Au NP nanotags. The biomineralization reaction of high-content urease loaded onto Au NPs leads to highly efficient Cu2+ enrichment for signal amplification. So this method features excellent performance including a very wide linear range and a low detection limit down to 0.071 pg mL-1. In addition, the satisfactory results of real sample experiments reveal that this method possesses huge potential for practical applications.
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Affiliation(s)
- Bo Li
- Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Department of Chemistry, Hubei Normal University, Huangshi 435002, PR China.
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Georgiou PG, Baker AN, Richards SJ, Laezza A, Walker M, Gibson MI. "Tuning aggregative versus non-aggregative lectin binding with glycosylated nanoparticles by the nature of the polymer ligand". J Mater Chem B 2019; 8:136-145. [PMID: 31778137 DOI: 10.1039/c9tb02004g] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Glycan-lectin interactions drive a diverse range of biological signaling and recognition processes. The display of glycans in multivalent format enables their intrinsically weak binding affinity to lectins to be overcome by the cluster glycoside effect, which results in a non-linear increase in binding affinity. As many lectins have multiple binding sites, upon interaction with glycosylated nanomaterials either aggregation or surface binding without aggregation can occur. Depending on the application area, either one of these responses are desirable (or undesirable) but methods to tune the aggregation state, independently from the overall extent/affinity of binding are currently missing. Herein, we use gold nanoparticles decorated with galactose-terminated polymer ligands, obtained by photo-initiated RAFT polymerization to ensure high end-group fidelity, to show the dramatic impact on agglutination behaviour due to the chemistry of the polymer linker. Poly(N-hydroxyethyl acrylamide) (PHEA)-coated gold nanoparticles, a polymer widely used as a non-ionic stabilizer, showed preference for aggregation with lectins compared to poly(N-(2-hydroxypropyl)methacrylamide) (PHPMA)-coated nanoparticles which retained colloidal stability, across a wide range of polymer lengths and particle core sizes. Using biolayer interferometry, it was observed that both coatings gave rise to similar binding affinity and hence provided conclusive evidence that aggregation rate alone cannot be used to measure affinity between nanoparticle systems with different stabilizing linkers. This is significant, as turbidimetry is widely used to demonstrate glycomaterial activity, although this work shows the most aggregating may not be the most avid, when comparing different polymer backbones/coating. Overall, our findings underline the potential of PHPMA as the coating of choice for applications where aggregation upon lectin binding would be problematic, such as in vivo imaging or drug delivery.
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Affiliation(s)
- Panagiotis G Georgiou
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK.
| | - Alexander N Baker
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK.
| | - Sarah-Jane Richards
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK.
| | - Antonio Laezza
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK.
| | - Marc Walker
- Department of Physics, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK
| | - Matthew I Gibson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK. and Warwick Medical School, University of Warwick, Gibbet Hill Road, CV4 7AL, Coventry, UK
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Reik M, Calabro M, Griesemer S, Barry E, Bu W, Lin B, Rice SA. The influence of fractional surface coverage on the core-core separation in ordered monolayers of thiol-ligated Au nanoparticles. SOFT MATTER 2019; 15:8800-8807. [PMID: 31599914 DOI: 10.1039/c9sm01579e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We report the results of grazing incidence X-ray diffraction (GIXD) measurements from water supported Langmuir monolayers of gold nanoparticles ligated with dodecanethiol (12 carbons), tetradecanethiol (14 carbons), hexadecanethiol (16 carbons), and octadecanethiol (18 carbons). These monolayers are formed from solutions with varying concentrations of the respective thiols. We show that equilibrium between adsorbed thiol molecules and the thiols in the bulk solution implies fractional coverage of the Au nanoparticle core. We also show that the nanoparticle-nanoparticle separation and the correlation length of particles in these ordered films increases with thiol concentration in the parent solution, and that excess thiol can be found in the space between particles as well as in islands away from the particles. Using the equilibrium constant relating ligand solution concentration and nanoparticle surface coverage of the gold core by the ligand molecules, we interpret the way in which varying thiol concentration affects the nanoparticle-nanoparticle separation as a function of surface coverage of the gold core by the ligand molecules.
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Affiliation(s)
- Morgan Reik
- James Franck Institute, University of Chicago, Chicago, IL 60637, USA.
| | - Melanie Calabro
- James Franck Institute, University of Chicago, Chicago, IL 60637, USA.
| | - Sean Griesemer
- James Franck Institute, University of Chicago, Chicago, IL 60637, USA.
| | - Edward Barry
- Applied Materials Division, Argonne National Laboratory, Argonne, IL 60439, USA
| | - Wei Bu
- NSF's ChemMatCARS, University of Chicago, Chicago, IL 60637, USA
| | - Binhua Lin
- James Franck Institute, University of Chicago, Chicago, IL 60637, USA. and NSF's ChemMatCARS, University of Chicago, Chicago, IL 60637, USA
| | - Stuart A Rice
- James Franck Institute, University of Chicago, Chicago, IL 60637, USA.
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Bagheri N, Saraji M. Combining gold nanoparticle-based headspace single-drop microextraction and a paper-based colorimetric assay for selenium determination. Anal Bioanal Chem 2019; 411:7441-7449. [PMID: 31654101 DOI: 10.1007/s00216-019-02106-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/11/2019] [Accepted: 08/28/2019] [Indexed: 01/04/2023]
Abstract
A novel method combining headspace single-drop microextraction with a paper-based colorimetric assay was developed. Headspace single-drop microextraction using a microdrop containing unmodified gold nanoparticles (AuNPs) as both the extractant and the colorimetric probe was used for the sensitive and selective determination of Se(IV). The method relies on the color change of the microdrop solution caused by the adsorption of in situ-generated hydrogen selenide on the surface of AuNPs. Following extraction, the microdrop was spotted onto cellulose paper, and scanometric-assisted digital image analysis was used for selenium quantification. The analytical variables affecting the method sensitivity, including the drop volume, the concentrations of KBH4, HCl, and AuNP solutions, and the extraction time, were studied. Under the optimal conditions, a linear correlation between the colorimetric signal and Se(IV) concentration in the range from 15-100 μg L-1 with a limit of quantification of 12 μg L-1 was achieved. The repeatability of the method was studied by the calculation of intraday and interday precision for the standard solutions at concentrations of 20 and 70 μg L-1. The batch-to-batch reproducibility of the AuNPs synthesized under the same conditions was also assessed. The relative standard deviations were less than 7%. The method provided satisfactory results for the determination of selenium in real samples.
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Affiliation(s)
- Neda Bagheri
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mohammad Saraji
- Department of Chemistry, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
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35
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Bordbar MM, Tashkhourian J, Hemmateenejad B. Structural Elucidation and Ultrasensitive Analyses of Volatile Organic Compounds by Paper-Based Nano-Optoelectronic Noses. ACS Sens 2019; 4:1442-1451. [PMID: 31062956 DOI: 10.1021/acssensors.9b00680] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Paper-based optoelectronic noses (OENs) are being developed based on printing of organic and organometallic reagents on hydrophilic substrates that can visualize the odor of volatiles. In this work, we report for the first time the use of nanoparticles for fabrication of novel paper-based OENs, which represent much higher sensitivity and produce simple but discriminant colorimetric signature of volatile metabolomes. This nano-optoelectronic nose (NOEN) system, which is fabricated by dropping of gold and silver nanoparticles (each synthesized by 8 chemical species) on the paper, gives obvious colorimetric signatures for chemicals having individual or combined functional groups. Owning to their ultrasensitivity, these simple devices need very small amounts of analytes. These devices could detect and discriminate 45 volatile organic compounds in 9 chemical families including phenols, alchohols, ketones, aldehydes, amines, acids, esters, arenes, and hydrocarbons. In addition to excellent discrimination ability, this NOEN sensor shows ultrahigh sensitivity such that could determine volatile compounds with detection limits around or lower than 10 ppb. Moreover, it can be combined with multivariate calibration methods for quantitative analysis of a metabolite in a complex mixture.
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36
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Tang PW, Tai CY. Nano-colorimetrically determined refractive index variation with ultra-high chromatic resolution. OPTICS EXPRESS 2019; 27:11709-11720. [PMID: 31053013 DOI: 10.1364/oe.27.011709] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 03/29/2019] [Indexed: 06/09/2023]
Abstract
We develop a front-to-end solution where the shift of chromaticity from scattering of plasmonic nanoparticles is used as the reporter for nano-environmental refractive index variation. By co-projecting possible power combinations of RGB LEDs and digitized color grid density of CCD with various luminance onto the CIE 1931 chromaticity diagram, optimum condition for nanoenvironment sensing can be achieved. The highest resolution for local refractive index change is 0.0021 per distinguishable color, which is higher than that of a typical handheld spectrometer by 4.8 times. This result shows great potential in simplifying nano-environment sensing instruments and is particularly useful for multi-point dynamical process.
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37
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Chen CA, Yeh WS, Tsai TT, Li YD, Chen CF. Three-dimensional origami paper-based device for portable immunoassay applications. LAB ON A CHIP 2019; 19:598-607. [PMID: 30664133 DOI: 10.1039/c8lc01255e] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In this study, we demonstrate a three-dimensional surface-modified origami-paper-based analytical device (3D-soPAD) for immunoassay applications. The platform enables the sequential steps of immunoassays to be easily performed using a folded, sliding paper design featuring multiple pre-stored reagents, allowing us to take advantage of the vertical diffusion of the analyte through the different paper layers. The cellulose substrate is composed of carboxymethyl cellulose modified with N-(3-dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride and N-hydroxysuccinimide, which provide covalent bonding sites for bio-recognition molecules. After the optimization of the operation parameters, we determined the detection limit of the 3D-soPAD for human immunoglobulin G (HIgG) which can be as low as 0.01 ng mL-1, with a total turnaround time of 7 min. In order to study the long-term storage of the platform, anti-HIgG horseradish peroxidase (aHIgG-HRP) conjugates were stored by freeze-drying in sugar matrices composed of 10% sucrose/10% trehalose (w/w%) on the paper device, retaining 80% of their activity after 75 days of storage at 4 °C. To evaluate the performance of the paper device using real samples, we demonstrated the detection of protein A (a biomarker for Staphylococcus aureus infection) in highly viscous human synovial fluid. These results show that the proposed 3D-soPAD platform can provide sensitive, high-throughput, and on-site prognosis of infection in resource-limited settings.
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Affiliation(s)
- Chung-An Chen
- Institute of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan.
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38
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Chang CC, Lee CH, Wu TH, Chen CP, Chen CY, Lin CW. Reversion of gold nanoparticle aggregates for the detection of Cu 2+ and its application in immunoassays. Analyst 2018; 142:4684-4690. [PMID: 29119996 DOI: 10.1039/c7an01511a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A high concentration of copper is a hazardous element to organisms and human health. Although various strategies have been reported for the sensitive detection of copper, a facile and rapid detection of aqueous copper has seldom been addressed to date. Here, we present an easy and accessible colorimetric method to detect Cu2+ using the redispersion of cysteamine-modified gold nanoparticles (CA-AuNPs). Initially, CA caused the aggregation of AuNPs due to the electrostatic interaction and aggregated AuNPs can be regenerated in basic medium. The subsequent addition of Cu2+ to the CA-AuNP dispersion could effectively trigger the aggregation of CA-AuNPs, resulting from the coordination reactivity between the deprotonated CA and Cu2+. This strategy resulted in a detection limit (LOD) of 1.52 μM in drinking water, which is below the U.S. Environmental Protection Agency permissible limit (20 μM). To demonstrate the broad application of CA-AuNPs, we further applied this method to plasmonic immunoassays based on the competitive interaction of Cu2+ between CA-AuNPs and enzymes. The LOD of the Down syndrome biomarker hyperglycosylated human chorionic gonadotropin (H-hCG) was 0.125 mIU mL-1, which is better than that of commercial immunoassays. Importantly, the determination of H-hCG in serum indicates its applicability for the measurement of real samples. Our assay agrees well with the current immunoassay systems and thus it can easily be expanded to a more common sensing platform for different types of biotargets by changing the corresponding antibodies.
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Affiliation(s)
- Chia-Chen Chang
- Institute of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan.
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39
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García Grajeda BA, Aguila SA, Peinado Guevara H, Reynoso-Soto E, Ochoa-Terán A, Trujillo-Navarrete B, Cruz Enríquez A, Campos-Gaxiola JJ. Colorimetric and rapid determination of Cr(III) ions in water samples using AuNPs modified with 11-mercaptoundecyl phosphonic acid: spectroscopic characterization and reaction mechanism. INORG NANO-MET CHEM 2018. [DOI: 10.1080/24701556.2018.1503680] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Blanca A. García Grajeda
- Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, C.U. Los Mochis, Sinaloa, México
| | - Sergio A. Aguila
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México (CNyN-UNAM), Ensenada, Baja California, México
| | - Héctor Peinado Guevara
- Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, C.U. Los Mochis, Sinaloa, México
| | - Edgar Reynoso-Soto
- Centro de Graduados e Investigación, Instituto Tecnológico de Tijuana, Tijuana, México
| | - Adrián Ochoa-Terán
- Centro de Graduados e Investigación, Instituto Tecnológico de Tijuana, Tijuana, México
| | | | - Adriana Cruz Enríquez
- Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, C.U. Los Mochis, Sinaloa, México
| | - José J. Campos-Gaxiola
- Facultad de Ingeniería Mochis, Universidad Autónoma de Sinaloa, C.U. Los Mochis, Sinaloa, México
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40
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Liu G, Lu M, Huang X, Li T, Xu D. Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening. SENSORS (BASEL, SWITZERLAND) 2018; 18:E4166. [PMID: 30486466 PMCID: PMC6308472 DOI: 10.3390/s18124166] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 12/20/2022]
Abstract
Due to their unique optical properties, narrow size distributions, and good biological affinity, gold nanoparticles have been widely applied in sensing analysis, catalytic, environmental monitoring, and disease therapy. The color of a gold nanoparticle solution and its maximum characteristic absorption wavelength will change with the particle size and inter-particle spacing. These properties are often used in the detection of hazardous chemicals, such as pesticide residues, heavy metals, banned additives, and biotoxins, in food. Because the gold nanoparticles-colorimetric sensing strategy is simple, quick, and sensitive, this method has extensive applications in real-time on-site monitoring and rapid testing of food quality and safety. Herein, we review the preparation methods, functional modification, photochemical properties, and applications of gold nanoparticle sensors in rapid testing. In addition, we elaborate on the colorimetric sensing mechanisms. Finally, we discuss the advantages and disadvantages of colorimetric sensors based on gold nanoparticles, and directions for future development.
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Affiliation(s)
- Guangyang Liu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, China.
- College of Life Sciences and Engineering, Hebei University of Engineering, Handan 056021, China.
| | - Meng Lu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, China.
- College of Life Sciences and Engineering, Hebei University of Engineering, Handan 056021, China.
| | - Xiaodong Huang
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, China.
| | - Tengfei Li
- College of Life Sciences and Engineering, Hebei University of Engineering, Handan 056021, China.
| | - Donghui Xu
- Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Key Laboratory of Vegetables Quality and Safety Control, Ministry of Agriculture and Rural Affairs of China, Beijing 100081, China.
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Hung SH, Lee JY, Hu CC, Chiu TC. Gold-nanoparticle-based fluorescent “turn-on” sensor for selective and sensitive detection of dimethoate. Food Chem 2018; 260:61-65. [DOI: 10.1016/j.foodchem.2018.03.149] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 03/15/2018] [Accepted: 03/31/2018] [Indexed: 12/22/2022]
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42
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Pereira SO, Barros-Timmons A, Trindade T. Polymer@gold Nanoparticles Prepared via RAFT Polymerization for Opto-Biodetection. Polymers (Basel) 2018; 10:E189. [PMID: 30966225 PMCID: PMC6415202 DOI: 10.3390/polym10020189] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Revised: 02/09/2018] [Accepted: 02/11/2018] [Indexed: 11/17/2022] Open
Abstract
Colloidal gold nanoparticles (Au NPs) have been used in several biological applications, which include the exploitation of size- and shape-dependent Localized Surface Plasmon Resonance (LSPR) in biosensing devices. In order to obtain functional and stable Au NPs in a physiological medium, surface modification and functionalization are crucial steps in these endeavors. Reversible addition-fragmentation chain transfer (RAFT) polymerization meets this need offering the possibility of control over the composition and architecture of polymeric shells coating Au NPs. Furthermore, playing with a careful choice of monomers, RAFT polymerization allows the possibility to design a polymer shell with the desired functional groups aiming at Au based nanocomposites suitable for biorecognition and biotargeting. This review provides important aspects concerning the synthesis and optical properties of Au NPs as well as concepts of RAFT polymerization. Understanding these concepts is crucial to appreciate the chemical strategies available towards RAFT-polymer coated Au core-shell nanostructures, which are here reviewed. Finally, examples of applications in opto-biodetection devices are provided and the potential of responsive "smart" nanomaterials based on such structures can be applied to other biological applications.
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Affiliation(s)
- Sónia O Pereira
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana Barros-Timmons
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Tito Trindade
- Department of Chemistry, CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal.
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43
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Zhang L, Wu X, Yuan Z, Lu C. π-Conjugated thiolate amplified spectrophotometry nitrite assay with improved sensitivity and accuracy. Chem Commun (Camb) 2018; 54:12178-12181. [DOI: 10.1039/c8cc06477f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
π-Conjugated thiolate amplified sensitive nitrite detection based on the π-conjugation enhanced molar absorption coefficient and the corresponding absorbance is presented.
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Affiliation(s)
- Lijuan Zhang
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Xiaoxia Wu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Zhiqin Yuan
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering
- Beijing University of Chemical Technology
- Beijing 100029
- China
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44
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Li Y, Chen Y, Yu H, Tian L, Wang Z. Portable and smart devices for monitoring heavy metal ions integrated with nanomaterials. Trends Analyt Chem 2018. [DOI: 10.1016/j.trac.2017.11.011] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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45
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Sanskriti I, Upadhyay KK. Facile Designing of a Colorimetric Plasmonic Gold Nanosensor for Selective Detection of Cysteine over Other Biothiols. ChemistrySelect 2017. [DOI: 10.1002/slct.201702288] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Isha Sanskriti
- Department of Chemistry, Centre of Advanced Study, Institute of Science; Banaras Hindu University; Varanasi- 221005 India
| | - Kaushal K. Upadhyay
- Department of Chemistry, Centre of Advanced Study, Institute of Science; Banaras Hindu University; Varanasi- 221005 India
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46
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Xiao Z, Tang A, Huang H, Wang Z. A simple and sensitive sensor for silver ions based on unmodified gold nanoparticles by using dynamic light scattering techniques. CAN J CHEM 2017. [DOI: 10.1139/cjc-2017-0241] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A simple and sensitive assay for Ag+ was developed with unmodified gold nanoparticles (AuNPs) by using dynamic light scattering techniques. Ag+ could induce the oligonucleotide (5′-ATC ACT ATA TCA TAT ACT CAT-3′) to change from a single-stranded structure to a double-stranded structure and desorb from the surface of AuNPs, which triggered the aggregation of AuNPs in the salt solution. The average hydrodynamic diameter of aggregated AuNPs could be detected by using dynamic light scattering techniques. Under the optimum conditions, the average hydrodynamic diameter of AuNPs is proportional to the concentration of Ag+ within the range of 13.3–100.0 nmol/L, with a detection limit of 3.2 nmol/L. The method is easy to operate and has low sample consumption, high sensitivity and selectivity.
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Affiliation(s)
- Zhiyou Xiao
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
| | - Anjiang Tang
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
| | - Hongsheng Huang
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
| | - Ze Wang
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
- School of Chemical Engineering, Guizhou Institute of Technology, Guiyang, Guizhou 550003, P.R. China
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47
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Possibilities and Challenges for Quantitative Optical Sensing of Hydrogen Peroxide. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5040028] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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48
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Tsai TT, Huang CY, Chen CA, Shen SW, Wang MC, Cheng CM, Chen CF. Diagnosis of Tuberculosis Using Colorimetric Gold Nanoparticles on a Paper-Based Analytical Device. ACS Sens 2017; 2:1345-1354. [PMID: 28901134 DOI: 10.1021/acssensors.7b00450] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
We have developed a colorimetric sensing strategy employing gold nanoparticles and a paper-based analytical platform for the diagnosis of tuberculosis (TB). By utilizing the surface plasmon resonance effect, we were able to monitor changes in the color of a gold nanoparticle colloid based on the effects of single-stranded DNA probe molecules hybridizing with targeted double-stranded TB DNA. The hybridization event changes the surface charge density of the nanoparticles, causing them to aggregate to various degrees, which modifies the color of the solution in a manner that can be readily measured to determine the concentration of the targeted DNA analyte. In order to adapt this TB diagnosis method to resource-limited settings, we extended this label-free oligonucleotide and unmodified gold nanoparticle solution-based technique to a paper-based system that can be measured using a smartphone to obtain rapid parallel colorimetric results with low reagent consumption and without the need for sophisticated analytical equipment. In this study, we investigated various assay conditions, including the denaturing temperature and time, different oligonucleotide probe sequences, as well as the ratio of single stranded probe and double stranded target DNA. After optimizing these variables, we were able to achieve a detection limit of 1.95 × 10-2 ng/mL for TB DNA. Furthermore, multiple tests could be performed simultaneously with a 60 min turnaround time.
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Affiliation(s)
- Tsung-Ting Tsai
- Department
of Orthopaedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan 333, Taiwan
| | - Chia-Yu Huang
- Institute
of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan
| | - Chung-An Chen
- Institute
of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan
| | - Shu-Wei Shen
- Institute
of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan
| | - Mei-Chia Wang
- Department
of Laboratory Medicine, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Chao-Min Cheng
- Institute
of Biomedical Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
| | - Chien-Fu Chen
- Institute
of Applied Mechanics, National Taiwan University, Taipei 106, Taiwan
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49
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Yu M, Yuan Z, Lu C. Layered double hydroxide-enhanced luminescence in a Fenton-like system for selective sensing of cobalt in Hela cells. Methods Appl Fluoresc 2017; 5:034003. [PMID: 28937969 DOI: 10.1088/2050-6120/aa7762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
This work presented a facile and eco-friendly method for the determination of cobalt ions (Co(II)) in living cells based on layered double hydroxides (Mg-Al CO3-LDHs) enhanced chemiluminescence (CL) emission of a Co(II)-hydrogen peroxide-sodium hydroxide system. The enhanced CL emission was attributed to the large specific surface area of Mg-Al CO3-LDHs, which facilitates the generation of an excited-stated intermediate. The proposed method displayed high selectivity toward Co(II) over other metal ions. Under the optimal conditions, the increased CL intensity showed a linear response versus Co(II) concentration in the range of 5.0-1000 nM with a detection limit of 3.7 nM (S/N = 3). The relative standard deviation for nine repeated measurements of 100 nM Co(II) was 3.2%. Furthermore, the proposed method was successfully applied to detect Co(II) in living cell samples, and the results were agreed with those obtained by the standard ICP-MS method.
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Affiliation(s)
- Mei Yu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, People's Republic of China
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50
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Amendola V, Pilot R, Frasconi M, Maragò OM, Iatì MA. Surface plasmon resonance in gold nanoparticles: a review. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:203002. [PMID: 28426435 DOI: 10.1088/1361-648x/aa60f3] [Citation(s) in RCA: 565] [Impact Index Per Article: 80.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In the last two decades, plasmon resonance in gold nanoparticles (Au NPs) has been the subject of intense research efforts. Plasmon physics is intriguing and its precise modelling proved to be challenging. In fact, plasmons are highly responsive to a multitude of factors, either intrinsic to the Au NPs or from the environment, and recently the need emerged for the correction of standard electromagnetic approaches with quantum effects. Applications related to plasmon absorption and scattering in Au NPs are impressively numerous, ranging from sensing to photothermal effects to cell imaging. Also, plasmon-enhanced phenomena are highly interesting for multiple purposes, including, for instance, Raman spectroscopy of nearby analytes, catalysis, or sunlight energy conversion. In addition, plasmon excitation is involved in a series of advanced physical processes such as non-linear optics, optical trapping, magneto-plasmonics, and optical activity. Here, we provide the general overview of the field and the background for appropriate modelling of the physical phenomena. Then, we report on the current state of the art and most recent applications of plasmon resonance in Au NPs.
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Affiliation(s)
- Vincenzo Amendola
- Department of Chemical Sciences, University of Padova, via Marzolo 1, I-35131 Padova, Italy. Consorzio INSTM, UdR Padova, Italy
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