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Creyer MN, Retout M, Jin Z, Yim W, Jokerst JV. Ligation of Gold Nanoparticles with Self-Assembling, Coiled-Coil Peptides. J Phys Chem B 2023; 127:8009-8018. [PMID: 37683185 DOI: 10.1021/acs.jpcb.3c02099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2023]
Abstract
The surface of gold nanoparticles (AuNPs) can be conjugated with a wide range of highly functional biomolecules. A common pitfall when utilizing AuNPs is their tendency to aggregate, especially when their surface is functionalized with ligands of low molecular weight (no steric repulsion) or ligands of neutral charge (no electrostatic repulsion). For biomedical applications, AuNPs that are colloidally stable are desirable because they have a high surface area and thus reactivity, resist sedimentation, and exhibit uniform optical properties. Here, we engineer the surface of AuNPs so that they remain stable when decorated with coiled-coil (CC) peptides while preserving the native polypeptide properties. We achieve this by using a neutral, mixed ligand layer composed of lipoic acid poly(ethylene glycol) and lipoic acid poly(ethylene glycol) maleimide to attach the CCs. Tuning the surface fraction of each component within the mixed ligand layer also allowed us to control the degree of AuNP labeling with CCs. We demonstrate the dynamic surface properties of these CC-AuNPs by performing a place-exchange reaction and their utility by designing an energy-transfer-based caspase-3 sensor. Overall, this study optimizes the surface chemistry of AuNPs to quantitatively present functional biomolecules while maintaining colloid stability.
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Affiliation(s)
- Matthew N Creyer
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Maurice Retout
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Zhicheng Jin
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Wonjun Yim
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Jesse V Jokerst
- Department of Nano and Chemical Engineering, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
- Department of Radiology, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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2
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Jin Z, Dridi N, Palui G, Palomo V, Jokerst JV, Dawson PE, Amy Sang QX, Mattoussi H. Evaluating the Catalytic Efficiency of the Human Membrane-type 1 Matrix Metalloproteinase (MMP-14) Using AuNP-Peptide Conjugates. J Am Chem Soc 2023; 145:4570-4582. [PMID: 36802544 DOI: 10.1021/jacs.2c12032] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Interactions of plasmonic nanocolloids such as gold nanoparticles and nanorods with proximal dye emitters result in efficient quenching of the dye photoluminescence (PL). This has become a popular strategy for developing analytical biosensors relying on this quenching process for signal transduction. Here, we report on the use of stable PEGylated gold nanoparticles, covalently coupled to dye-labeled peptides, as sensitive optically addressable sensors for determining the catalytic efficiency of the human matrix metalloproteinase-14 (MMP-14), a cancer biomarker. We exploit real-time dye PL recovery triggered by MMP-14 hydrolysis of the AuNP-peptide-dye to extract quantitative analysis of the proteolysis kinetics. Sub-nanomolar limit of detections for MMP-14 has been achieved using our hybrid bioconjugates. In addition, we have used theoretical considerations within a diffusion-collision framework to derive enzyme substrate hydrolysis and inhibition kinetics equations, which allowed us to describe the complexity and irregularity of enzymatic proteolysis of nanosurface-immobilized peptide substrates. Our findings offer a great strategy for the development of highly sensitive and stable biosensors for cancer detection and imaging.
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Affiliation(s)
- Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Narjes Dridi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Goutam Palui
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Valle Palomo
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Jesse V Jokerst
- Department of NanoEngineering, Materials Science and Engineering Program, and Department of Radiology, University of California, San Diego, La Jolla, California 92093, United States
| | - Philip E Dawson
- Department of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
| | - Qing-Xiang Amy Sang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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3
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Dai S, Li W, Xu R, Wang X, Li Q, Dou M, Li J. Label-Free Fluorescence Quantitative Detection Platform on Plasmonic Silica Photonic Crystal Microsphere Array. Anal Chem 2022; 94:17939-17946. [PMID: 36519631 DOI: 10.1021/acs.analchem.2c04000] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We have demonstrated the proof-of-concept of a label-free fluorescence quantitative detection platform based on gold nanoparticle (AuNP) enhancement intrinsic fluorescence of protein on the silica photonic crystal microsphere (SPCM) array. The label-free one-step competitive fluorescence immunoassay protocol has been proposed on the surface of the SPCM. Aflatoxin B1 (AFB1) as a model molecule was detected by the newly established method. AFB1-bovine serum albumin and monoclonal antibodies (Abs) of anti-AFB1 have been immobilized on the surfaces of SPCMs and AuNPs, respectively. AuNPs remarkably enhanced the intrinsic fluorescence of artificial antigens on the surface of the SPCM at near UV excitation. The simulation of electric field distribution showed that the maximum value of the near-field enhancement |E/E0| of the SPCM with AuNPs could reach 20. The label-free fluorescence enhancement effect comes from the synergistic effects of photonic crystal effect and AuNP plasmon effect. Such a label-free fluorescence detection method can provide a linear detection range from 0.1 to 10 ng/mL with a limit of detection of 0.025 ng/mL and good specificity for AFB1. The recovery rates in the spiked cereal samples were measured in the range of 84.07 ± 5.71%-101.02 ± 5.13%, which were consistent with that of the traditional enzyme linked immunosorbent assay method. The label-free detection platform displays great application potential in biology, medicine, agriculture, food industry, chemical industry, energy source, and environmental protection.
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Affiliation(s)
- Shijie Dai
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Wei Li
- Medical Imaging Center, the First Affiliated Hospital, Jinan University, Guangzhou, Guangdong510627China
| | - Ruimin Xu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Xin Wang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Qianjin Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Menghua Dou
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
| | - Jianlin Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing210023, China
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Jin Z, Ling C, Li Y, Zhou J, Li K, Yim W, Yeung J, Chang YC, He T, Cheng Y, Fajtová P, Retout M, O'Donoghue AJ, Jokerst JV. Spacer Matters: All-Peptide-Based Ligand for Promoting Interfacial Proteolysis and Plasmonic Coupling. NANO LETTERS 2022; 22:8932-8940. [PMID: 36346642 DOI: 10.1021/acs.nanolett.2c03052] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Plasmonic coupling via nanoparticle assembly is a popular signal-generation method in bioanalytical sensors. Here, we customized an all-peptide-based ligand that carries an anchoring group, polyproline spacer, biomolecular recognition, and zwitterionic domains for functionalizing gold nanoparticles (AuNPs) as a colorimetric enzyme sensor. Our results underscore the importance of the polyproline module, which enables the SARS-CoV-2 main protease (Mpro) to recognize the peptidic ligand on nanosurfaces for subsequent plasmonic coupling via Coulombic interactions. AuNP aggregation is favored by the lowered surface potential due to enzymatic unveiling of the zwitterionic module. Therefore, this system provides a naked-eye measure for Mpro. No proteolysis occurs on AuNPs modified with a control ligand lacking a spacer domain. Overall, this all-peptide-based ligand does not require complex molecular conjugations and hence offers a simple and promising route for plasmonic sensing other proteases.
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Affiliation(s)
- Zhicheng Jin
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Chuxuan Ling
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Yi Li
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Jiajing Zhou
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Ke Li
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research, Singapore 138634
| | - Wonjun Yim
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Justin Yeung
- Department of Bioengineering, University of California San Diego, La Jolla, California 92093, United States
| | - Yu-Ci Chang
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Tengyu He
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
| | - Yong Cheng
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Pavla Fajtová
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Maurice Retout
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
| | - Anthony J O'Donoghue
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, California 92093, United States
| | - Jesse V Jokerst
- Department of NanoEngineering, University of California, San Diego, La Jolla, California 92093, United States
- Materials Science and Engineering Program, University of California, San Diego, La Jolla, California 92093, United States
- Department of Radiology, University of California, San Diego, La Jolla, California 92093, United States
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5
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Hang Y, Boryczka J, Wu N. Visible-light and near-infrared fluorescence and surface-enhanced Raman scattering point-of-care sensing and bio-imaging: a review. Chem Soc Rev 2022; 51:329-375. [PMID: 34897302 PMCID: PMC9135580 DOI: 10.1039/c9cs00621d] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This review article deals with the concepts, principles and applications of visible-light and near-infrared (NIR) fluorescence and surface-enhanced Raman scattering (SERS) in in vitro point-of-care testing (POCT) and in vivo bio-imaging. It has discussed how to utilize the biological transparency windows to improve the penetration depth and signal-to-noise ratio, and how to use surface plasmon resonance (SPR) to amplify fluorescence and SERS signals. This article has highlighted some plasmonic fluorescence and SERS probes. It has also reviewed the design strategies of fluorescent and SERS sensors in the detection of metal ions, small molecules, proteins and nucleic acids. Particularly, it has provided perspectives on the integration of fluorescent and SERS sensors into microfluidic chips as lab-on-chips to realize point-of-care testing. It has also discussed the design of active microfluidic devices and non-paper- or paper-based lateral flow assays for in vitro diagnostics. In addition, this article has discussed the strategies to design in vivo NIR fluorescence and SERS bio-imaging platforms for monitoring physiological processes and disease progression in live cells and tissues. Moreover, it has highlighted the applications of POCT and bio-imaging in testing toxins, heavy metals, illicit drugs, cancers, traumatic brain injuries, and infectious diseases such as COVID-19, influenza, HIV and sepsis.
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Affiliation(s)
- Yingjie Hang
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Jennifer Boryczka
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
| | - Nianqiang Wu
- Department of Chemical Engineering, University of Massachusetts Amherst, Amherst, MA 01003-9303, USA.
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6
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Lin Z, Zhou J, Qu Y, Pan S, Han Y, Lafleur RPM, Chen J, Cortez-Jugo C, Richardson JJ, Caruso F. Luminescent Metal-Phenolic Networks for Multicolor Particle Labeling. Angew Chem Int Ed Engl 2021; 60:24968-24975. [PMID: 34528750 DOI: 10.1002/anie.202108671] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/24/2021] [Indexed: 12/22/2022]
Abstract
The development of fluorescence labeling techniques has attracted widespread interest in various fields, including biomedical science as it can facilitate high-resolution imaging and the spatiotemporal understanding of various biological processes. We report a supramolecular fluorescence labeling strategy using luminescent metal-phenolic networks (MPNs) constructed from metal ions, phenolic ligands, and common and commercially available dyes. The rapid labeling process (<5 min) produces ultrathin coatings (≈10 nm) on diverse particles (e.g., organic, inorganic, and biological entities) with customized luminescence (e.g., red, blue, multichromatic, and white light) simply through the selection of fluorophores. The fluorescent coatings are stable at pH values from 1 to 8 and in complex biological media owing to the dominant π interactions between the dyes and MPNs. These coatings exhibit negligible cytotoxicity and their strong fluorescence is retained even when internalized into intracellular compartments. This strategy is expected to provide a versatile approach for fluorescence labeling with potential in diverse fields across the physical and life sciences.
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Affiliation(s)
- Zhixing Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Yijiao Qu
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Yiyuan Han
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - René P M Lafleur
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Jingqu Chen
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Christina Cortez-Jugo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Joseph J Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria, 3010, Australia
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7
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Lin Z, Zhou J, Qu Y, Pan S, Han Y, Lafleur RPM, Chen J, Cortez‐Jugo C, Richardson JJ, Caruso F. Luminescent Metal‐Phenolic Networks for Multicolor Particle Labeling. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202108671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Zhixing Lin
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Jiajing Zhou
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yijiao Qu
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Shuaijun Pan
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Yiyuan Han
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - René P. M. Lafleur
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Jingqu Chen
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Christina Cortez‐Jugo
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Joseph J. Richardson
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
| | - Frank Caruso
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology the Department of Chemical Engineering The University of Melbourne Parkville Victoria 3010 Australia
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Zhu X, Shi H, Zhang S, Yang Z, Liao J, Quan J, Xue S, Zou C, Zhang J, Duan H. Intraband hot-electron photoluminescence of a silver nanowire-coupled gold film via high-order gap plasmons. NANOSCALE 2021; 13:11204-11214. [PMID: 34143167 DOI: 10.1039/d1nr02002a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We report a strong one-photon photoluminescence (PL) behavior of a silver nanowire directly coupled gold film. The PL peak position of the silver nanowire-coupled gold film deviates from the intrinsic interband transition of gold materials and is not sensitive to the diameter change of the silver nanowire. We attribute this strong PL behavior to the intraband transition of hot electrons dominated by high-order gap plasmons, which are excited in the ultra-small gap formed by an ultra-thin polyvinyl pyrrolidone (PVP) layer coated on the silver nanowire. The results show that the energy required for the strong PL of the heterogeneous system mainly comes from the gold film, acting as an incident energy absorber enhanced by the high-order gap plasmons, while the silver nanowire acts an efficient incident energy focusing antenna. In situ Raman scattering spectra and time-resolved PL intensity integral curves were used to record the carbonization and disappearance process of PVP. The understanding of the PL behavior of the silver nanowire directly coupled gold film proves the universality of plasmon-modulated PL theory and is also of great significance to improve the generation and utilization efficiency of hot electrons with high-order gap plasmons in the fields of catalysis and incident energy capture.
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Affiliation(s)
- Xupeng Zhu
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Huimin Shi
- Center for Research on Leading Technology of Special Equipment, School of Mechanical and Electrical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Shi Zhang
- College of Mechanical and Vehicle Engineering, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China.
| | - Zhengmei Yang
- State Key Laboratory of Information Photonics and Optical Communications, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
| | - Jun Liao
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Jun Quan
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Shuwen Xue
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Changwei Zou
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Jun Zhang
- School of Physics Science and Technology, Lingnan Normal University, Zhanjiang 524048, China.
| | - Huigao Duan
- College of Mechanical and Vehicle Engineering, State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082, China.
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MacCormack TJ, Meli MV, Ede JD, Ong KJ, Rourke JL, Dieni CA. Commentary: Revisiting nanoparticle-assay interference: There's plenty of room at the bottom for misinterpretation. Comp Biochem Physiol B Biochem Mol Biol 2021; 255:110601. [PMID: 33857590 DOI: 10.1016/j.cbpb.2021.110601] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 12/15/2022]
Abstract
Engineered nanomaterials (ENMs) are a diverse class of materials whose distinct properties make them desirable in a multitude of applications. The proliferation of nanotoxicology research has improved our understanding of ENM toxicity, but an under appreciation for their potential to interfere with biochemical assays has hampered progress in the field. The physicochemical properties of ENMs can promote their interaction with membranes or biomacromolecules (e.g. proteins, genomic material). This can influence the activity of enzymes used as biomarkers or as reagents in biochemical assay protocols, bind indicator dyes in cytotoxicity tests, and/or interfere with the cellular mechanisms controlling the uptake of such dyes. The spectral characteristics of some ENMs can cause interference with common assay chromophores, fluorophores, and radioisotope scintillation cocktails. Finally, the inherent chemical reactivity of some ENMs can short circuit assay mechanisms by directly oxidizing or reducing indicator dyes. These processes affect data quality and may lead to significant misinterpretations regarding ENM safety. We provide an overview of some ENM properties that facilitate assay interference, examples of interference and the erroneous conclusions that may result from it, and a number of general and specific recommendations for validating cellular and biochemical assay protocols in nanotoxicology studies.
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Affiliation(s)
- T J MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, 63C York St., Sackville, NB E4L1E4, Canada.
| | - M-V Meli
- Department of Chemistry and Biochemistry, Mount Allison University, 63C York St., Sackville, NB E4L1E4, Canada
| | - J D Ede
- Vireo Advisors, LLC, Boston, MA 02130-4323, USA
| | - K J Ong
- Vireo Advisors, LLC, Boston, MA 02130-4323, USA
| | - J L Rourke
- Department of Chemistry and Biochemistry, Mount Allison University, 63C York St., Sackville, NB E4L1E4, Canada
| | - C A Dieni
- Department of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave., Grand Junction, CO 81501, USA
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11
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Chen C, Hildebrandt N. Resonance energy transfer to gold nanoparticles: NSET defeats FRET. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115748] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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12
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Semiconductor quantum dot FRET: Untangling energy transfer mechanisms in bioanalytical assays. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2019.115750] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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13
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Jin Z, Kapur A, Wang W, Diaz Hernandez J, Thakur M, Mattoussi H. The dual–function of lipoic acid groups as surface anchors and sulfhydryl reactive sites on polymer–stabilized QDs and Au nanocolloids. J Chem Phys 2019; 151:164703. [DOI: 10.1063/1.5126432] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Affiliation(s)
- Zhicheng Jin
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
| | - Anshika Kapur
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
| | - Wentao Wang
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
| | - Juan Diaz Hernandez
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
| | - Mannat Thakur
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
| | - Hedi Mattoussi
- Department of Chemistry and Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, USA
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