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Alim E, Stone L, Sharma N, McMahon S, Allen Z, Aceto P, Victor P, Mitchell LF, Raulerson A, Schepke C, Grabowski J, Valera R, Kalia K, Fernandez M, Kouba K, Shannon M, Johnson V, Forestal C, Pongo I, Ospina S, Fontanez N, Rosenberg M, Levin M, Martinez D, Betancourt YP, Rhodes LV, Lee KJ. Single Live Cell Imaging of Multidrug Resistance Using Silver Ultrasmall Nanoparticles as Biosensing Probes in Triple-Negative Breast Cancer Cells. ACS APPLIED BIO MATERIALS 2023; 6:4672-4681. [PMID: 37844294 DOI: 10.1021/acsabm.3c00451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
Silver ultrasmall nanoparticles (Ag UNPs) (size < 5 nm) were used as biosensing probes to analyze the efflux kinetics contributing to multidrug resistance (MDR) in single live triple-negative breast cancer (TNBC) cells by using dark-field optical microscopy to follow their size-dependent localized surface plasmon resonance. TNBC cells lack expression of estrogen (ER-), progesterone (PR-), and human epidermal growth factor 2 (HER2-) receptors and are more likely to acquire resistance to anticancer drugs due to their ability to transport harmful substances outside the cell. The TNBC cells displayed greater nuclear and cytoplasmic efflux, resulting in less toxicity of Ag UNPs in a concentration-independent manner. In contrast, more Ag UNPs and an increase in cytotoxic effects were observed in the receptor-positive breast cancer cells that have receptors for ER+, PR+, and HER2+ and are known to better respond to anticancer therapies. Ag UNPs accumulated in receptor-positive breast cancer cells in a time-and concentration-dependent mode and caused decreased cellular growth, whereas the TNBC cells due to the efflux were able to continue to grow. The TNBC cells demonstrated a marked increase in survival due to their ability to have MDR determined by efflux of Ag UNPs outside the nucleus and the cytoplasm of the cells. Further evaluation of the nuclear efflux kinetics of TNBC cells with Ag UNPs as biosensing probes is critical to gain a better understanding of MDR and potential for enhancement of cancer drug delivery.
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Affiliation(s)
- Ece Alim
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Logan Stone
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Naina Sharma
- College of Medicine, University of Central Florida, Orlando, Florida 32827, United States
| | - Shane McMahon
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Zachary Allen
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Peter Aceto
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Paige Victor
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Luisa F Mitchell
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Arial Raulerson
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Connor Schepke
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Jamie Grabowski
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Rebecca Valera
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Karishma Kalia
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Mirtha Fernandez
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Kalli Kouba
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Matthew Shannon
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Victoria Johnson
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Christopher Forestal
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Immanuelle Pongo
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Sebastian Ospina
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Neysha Fontanez
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Madison Rosenberg
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Madison Levin
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Danna Martinez
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Yanel Pena Betancourt
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Lyndsay V Rhodes
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
| | - Kerry J Lee
- Department of Biological Sciences, Florida Gulf Coast University, Fort Myers, Florida 33965, United States
- College of Medicine, University of Central Florida, Orlando, Florida 32827, United States
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Preparation, Functionalization, Modification, and Applications of Nanostructured Gold: A Critical Review. ENERGIES 2021. [DOI: 10.3390/en14051278] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Gold nanoparticles (Au NPs) play a significant role in science and technology because of their unique size, shape, properties and broad range of potential applications. This review focuses on the various approaches employed for the synthesis, modification and functionalization of nanostructured Au. The potential catalytic applications and their enhancement upon modification of Au nanostructures have also been discussed in detail. The present analysis also offers brief summaries of the major Au nanomaterials synthetic procedures, such as hydrothermal, solvothermal, sol-gel, direct oxidation, chemical vapor deposition, sonochemical deposition, electrochemical deposition, microwave and laser pyrolysis. Among the various strategies used for improving the catalytic performance of nanostructured Au, the modification and functionalization of nanostructured Au produced better results. Therefore, various synthesis, modification and functionalization methods employed for better catalytic outcomes of nanostructured Au have been summarized in this review.
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3
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Guo D, Zhou C, Tan L, Ma H, He R, Pang H, Wang X. Electrochemical ascorbic acid sensor of composite film based on Keggin-type Vanadium-substituted Polyoxometalates decorated with graphene and Ru(bpy)32+. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124550] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Dumur F, Dumas E, Mayer CR. Functionalization of Gold Nanoparticles by Inorganic Entities. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E548. [PMID: 32197512 PMCID: PMC7153718 DOI: 10.3390/nano10030548] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 03/12/2020] [Accepted: 03/13/2020] [Indexed: 02/06/2023]
Abstract
The great affinity of gold surface for numerous electron-donating groups has largely contributed to the rapid development of functionalized gold nanoparticles (Au-NPs). In the last years, a new subclass of nanocomposite has emerged, based on the association of inorganic molecular entities (IME) with Au-NPs. This highly extended and diversified subclass was promoted by the synergy between the intrinsic properties of the shell and the gold core. This review-divided into four main parts-focuses on an introductory section of the basic notions related to the stabilization of gold nanoparticles and defines in a second part the key role played by the functionalizing agent. Then, we present a wide range of inorganic molecular entities used to prepare these nanocomposites (NCs). In particular, we focus on four different types of inorganic systems, their topologies, and their current applications. Finally, the most recent applications are described before an overview of this new emerging field of research.
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Affiliation(s)
- Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR, UMR 7273, F-13397 Marseille, France
| | - Eddy Dumas
- Institut Lavoisier de Versailles, UMR CNRS 8180, Université de Versailles Saint-Quentin-en-Yvelines, F-78035 Versailles, France;
| | - Cédric R. Mayer
- Laboratoire LuMin, FRE CNRS 2036, CNRS, Université Paris-Sud, ENS Paris-Saclay, Université Paris-Saclay, F-91405 Orsay CEDEX, France
- Département de Chimie, UFR des Sciences, Université de Versailles Saint-Quentin-en-Yvelines, F-78035 Versailles, France
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5
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Quintana C, Cifuentes MP, Humphrey MG. Transition metal complex/gold nanoparticle hybrid materials. Chem Soc Rev 2020; 49:2316-2341. [PMID: 32149284 DOI: 10.1039/c9cs00651f] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Gold nanoparticles (AuNPs) are of considerable interest for diverse applications in areas such as medicine, catalysis, and sensing. AuNPs are generally surface-stabilized by organic matrices and coatings, and while the resultant organic compound (OC)/AuNP hybrids have been explored extensively, they are not suitable for certain applications (e.g. those necessitating reversible redox behaviour and/or long excited-state lifetimes), and they often suffer from low photo- and/or thermal stability. Transition metal complex (TMC)/AuNP hybrids have recently come to the fore as they circumvent some of the aforementioned shortcomings with OC/AuNP hybrids. This review summarizes progress thus far in the nascent field of TMC/AuNP hybrids. The structure and composition of extant TMC/AuNP hybrids are briefly reviewed and the range of TMCs employed in the shell of the hybrids are summarized, the one-phase, two-phase, and post-nanoparticle-synthesis synthetic methods to TMC/AuNP hybrids are discussed and contrasted, highlighting the advantages of variants of the last-mentioned procedure, and the utility of the various characterization techniques is discussed, emphasizing the need to employ multiple techniques in concert. Applications of TMC/AuNP hybrids in luminescence, electrochemical, and electro-optical sensing are described and critiqued, and their uses and potential in imaging, photo-dynamic therapy, nonlinear optics, and catalysis are assessed.
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Affiliation(s)
- Cristóbal Quintana
- Research School of Chemistry, Australian National University, Canberra ACT 2601, Australia.
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6
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Choleva TG, Tsogas GZ, Giokas DL. Determination of silver nanoparticles by atomic absorption spectrometry after dispersive suspended microextraction followed by oxidative dissolution back-extraction. Talanta 2019; 196:255-261. [DOI: 10.1016/j.talanta.2018.12.053] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 12/15/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
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7
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Cheng X, Zhang X, Liu P, Xia LY, Jiang YW, Gao G, Wang HY, Li YH, Ma N, Ran HH, Wu FG. Sequential Treatment of Cell Cycle Regulator and Nanoradiosensitizer Achieves Enhanced Radiotherapeutic Outcome. ACS APPLIED BIO MATERIALS 2019; 2:2050-2059. [DOI: 10.1021/acsabm.9b00085] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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8
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Wang X, Wang X, Wang M, Zhang D, Yang Q, Liu T, Lei R, Zhu S, Zhao Y, Chen C. Probing Adsorption Behaviors of BSA onto Chiral Surfaces of Nanoparticles. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2018; 14:e1703982. [PMID: 29573549 DOI: 10.1002/smll.201703982] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Chiral properties of nanoscale materials are of importance as they dominate interactions with proteins in physiological environments; however, they have rarely been investigated. In this study, a systematic investigation is conducted for the adsorption behaviors of bovine serum albumin (BSA) onto the chiral surfaces of gold nanoparticles (AuNPs), involving multiple techniques and molecular dynamic (MD) simulation. The adsorption of BSA onto both L- and D-chiral surfaces of AuNPs shows discernible differences involving thermodynamics, adsorption orientation, exposed charges, and affinity. As a powerful supplement, MD simulation provides a molecular-level understanding of protein adsorption onto nanochiral surfaces. Salt bridge interaction is proposed as a major driving force at protein-nanochiral interface interaction. The spatial distribution features of functional groups (COO- , NH3+ , and CH3 ) of chiral molecules on the nanosurface play a key role in the formation and location of salt bridges, which determine the BSA adsorption orientation and binding strength to chiral surfaces. Sequentially, BSA corona coated on nanochiral surfaces affects their uptake by cells. The results enhance the understanding of protein corona, which are important for biological effects of nanochirality in living organisms.
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Affiliation(s)
- Xinyi Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing, 100190, China
- College of Environment, Liaoning University, Shenyang, 110036, China
- College of Science, Shenyang Agricultural University, Shenyang, 110866, China
| | - Xiaofeng Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
| | - Mingzhe Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Di Zhang
- College of Science, Shenyang Agricultural University, Shenyang, 110866, China
| | - Qi Yang
- College of Science, Shenyang Agricultural University, Shenyang, 110866, China
| | - Tao Liu
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Rong Lei
- Institute of Plant Quarantine, Chinese Academy of Inspection and Quarantine, Beijing, 100029, China
| | - Shuifang Zhu
- Institute of Plant Quarantine, Chinese Academy of Inspection and Quarantine, Beijing, 100029, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing, 100190, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, & CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China, University of Chinese Academy of Sciences, Beijing, 100190, China
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9
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Browning LM, Lee KJ, Cherukuri PK, Huang T, Songkiatisak P, Warren S, Xu XHN. Single gold nanoparticle plasmonic spectroscopy for study of chemical-dependent efflux function of single ABC transporters of single live Bacillus subtilis cells. Analyst 2018; 143:1599-1608. [PMID: 29488517 PMCID: PMC5869163 DOI: 10.1039/c7an01787a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
ATP-binding cassette (ABC) membrane transporters serve as self-defense transport apparatus in many living organisms and they can selectively extrude a wide variety of substrates, leading to multidrug resistance (MDR). The detailed molecular mechanisms remain elusive. Single nanoparticle plasmonic spectroscopy highly depends upon their sizes, shapes, chemical and surface properties. In our previous studies, we have used the size-dependent plasmonic spectra of single silver nanoparticles (Ag NPs) to study the real-time efflux kinetics of the ABC (BmrA) transporter and MexAB-OprM transporter in single live cells (Gram-positive and Gram-negative bacterium), respectively. In this study, we prepared and used purified, biocompatible and stable (non-aggregated) gold nanoparticles (Au NPs) (12.4 ± 0.9 nm) to study the efflux kinetics of single BmrA membrane transporters of single live Bacillus subtillis cells, aiming to probe chemical dependent efflux functions of BmrA transporters and their potential chemical sensing capability. Similar to those observed using Ag NPs, accumulation of the intracellular Au NPs in single live cells (WT and ΔBmrA) highly depends upon the cellular expression of BmrA and the NP concentration (0.7 and 1.4 nM). The lower accumulation of intracellular Au NPs in WT (normal expression of BmrA) than ΔBmrA (deletion of bmrA) indicates that BmrA extrudes the Au NPs out of the WT cells. The accumulation of Au NPs in the cells increases with NP concentration, suggesting that the Au NPs most likely passively diffuse into the cells, similar to antibiotics. The result demonstrates that such small Au NPs can serve as imaging probes to study the efflux function of the BmrA membrane transporter in single live cells. Furthermore, the dependence of the accumulation rate of intracellular Au NPs in single live cells upon the expression of BmrA and the concentration of the NPs is about twice higher than that of the same sized Ag NPs. This interesting finding suggests the chemical-dependent efflux kinetics of BmrA and that BmrA could distinguish nearly identical sized Au NPs from Ag NPs and might possess chemical sensing machinery.
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Affiliation(s)
- Lauren M Browning
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA.
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10
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Gandhi S, Banga I, Maurya PK, Eremin SA. A gold nanoparticle-single-chain fragment variable antibody as an immunoprobe for rapid detection of morphine by dipstick. RSC Adv 2018; 8:1511-1518. [PMID: 35540925 PMCID: PMC9077121 DOI: 10.1039/c7ra12810j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 12/15/2017] [Indexed: 11/21/2022] Open
Abstract
Gold nanoparticle (AuNP)-based optical assays are of significant interest since the molecular phenomenon can be examined easily with change in the color of AuNPs. Herein, we report the development of a dipstick using a AuNP-labeled single-chain fragment variable (scFv) antibody for the detection of morphine. The scFv antibodies for morphine were developed using phage display-based antibody library. Immunoglobulin variable regions of heavy (VH)- and light (VL)-chain genes were connected via a glycine–serine linker isolated from murine immune repertoire and cloned into the expression vector pIT2. The scFv was produced in Escherichia coli HB2151, yielding a functional protein with a molecular weight of approximately 32 kDa. The morphine scFv was labeled with gold nanoparticles and used as an optical immunoprobe in a dipstick. The competitive dipstick assay characterized the ability of the scFv antibody to recognize free morphine. The detection range was 1–1000 ng mL−1 with a limit of detection (LOD) of 5 ng mL−1 under optimal conditions, and the IC50 value was 14 ng mL−1 for morphine. The developed optical dipstick kit of scFv antibody was capable of specifically binding to free morphine and its analogs in a solution in less than 5 min and could be useful for on-site screening of a real sample in blood, urine, and saliva. Dipstick device developed on the principle of lateral flow using gold nanoparticles for analysis of morphine in urine by morphine/scFv/immunoprobe.![]()
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Affiliation(s)
- Sonu Gandhi
- Institute of Biotechnology
- Amity University
- Noida-201313
- India
| | - Ivneet Banga
- Institute of Biotechnology
- Amity University
- Noida-201313
- India
| | - Pawan Kumar Maurya
- Institute of Biotechnology
- Amity University
- Noida-201313
- India
- Universidade Federal de Sao Paulo
| | - Sergei A. Eremin
- Faculty of Chemistry
- M.V.Lomonosov Moscow State University
- 119991 Moscow
- Russia
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11
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Zhang Z, Zhang Z, Liu H, Mao X, Liu W, Zhang S, Nie Z, Lu X. Ultratrace and robust visual sensor of Cd 2+ ions based on the size-dependent optical properties of Au@g-CNQDs nanoparticles in mice models. Biosens Bioelectron 2017; 103:87-93. [PMID: 29278816 DOI: 10.1016/j.bios.2017.12.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/07/2017] [Accepted: 12/17/2017] [Indexed: 12/24/2022]
Abstract
Visual inspection is expected as an ideal technique, which can directly and conveniently detect heavy metal ions by observing the color change. Insensitivity of detecting weakly colored heavy transition metal ions and low adsorptivity of metal ions on nanoparticle surface are two main factors hindering the application of visual detection in heavy metal ions detection. Herein, we demonstrated an operational colorimetric sensor based on the color dependence of nanoparticles aggregation to selective and facile detect weakly colored transition heavy metal Cd2+ ions that have been considered as the origin of the "Itai-itai" disease. Uniform colloidal 15nm graphite-like nitride doped carbon quantum dots-capped gold nanoparticle (Au@g-CNQDs) was successfully prepared, wherein the existence of numerous heptazine, carboxyl and hydroxyl groups on the nanoparticle's surface strengthened adsorption of the Cd2+ ions on the surface of Au@g-CNQDs through the "cooperative effect". As a consequence, without expensive and intricate exogenous indicators or other special additives, the Cd2+ ions could sensitively and quickly captured to detect at ultra-low concentration within 30s by the naked-eye. Under the optimal conditions, the Cd2+ ions sensor possesses good analytical performances with a wide linear range of 0.01-3.0μM and a detection limit of 10nM (S/N = 3). Moreover, the biodistribution and aggregation of Cd2+ ions were detected effectively in mice organ tissues suggesting its great potential use for real-word applications.
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Affiliation(s)
- Zhuoyue Zhang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China
| | - Zhen Zhang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, Tianjin 300072, PR China
| | - Huihui Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xiang Mao
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, Tianjin 300072, PR China
| | - Wei Liu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, Tianjin 300072, PR China
| | - Shouting Zhang
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China; Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, Tianjin 300072, PR China
| | - Zongxiu Nie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, PR China; Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, Tianjin University, Tianjin 300072, PR China.
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12
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Choleva TG, Gatselou VA, Tsogas GZ, Giokas DL. Intrinsic peroxidase-like activity of rhodium nanoparticles, and their application to the colorimetric determination of hydrogen peroxide and glucose. Mikrochim Acta 2017; 185:22. [PMID: 29594622 DOI: 10.1007/s00604-017-2582-8] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Accepted: 11/19/2017] [Indexed: 11/30/2022]
Abstract
The intrinsic peroxidase-like activity of rhodium nanoparticles (RhNPs) and their use as catalytic labels for sensitive colorimetric assays is presented. RhNPs catalyze the oxidation of the peroxidase substrate 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H2O2 to produce a blue reaction product with a maximum absorbance at 652 nm. Kinetic studies show catalysis to follow Michaelis-Menten kinetics and a "ping-pong" mechanism. The calculated kinetic parameters indicate high affinity of RhNPs for both the substrate TMB and H2O2. In fact, they are better than other peroxidase mimicking nanomaterials and even the natural enzyme horseradish peroxidase. On the other hand, RhNPs exhibit no reactivity towards saccharides, thiols, amino acids and ascorbic acid. Based on these findings, a sensitive and selective colorimetric method was worked out for the determination of H2O2 in real samples with a linear response in the 1-100 μM concentration range. By employing glucose oxidase, the glucose assay has a linear range that covers the 5 to 125 μM glucose concentration range. The detection limits are <0.75 μM for both species. The methods were applied to the determination of H2O2 in spiked pharmaceutical formulations, and of glucose in soft drinks and blood plasma. Figures of merit include (a) good accuracy (with errors of <6%), (b) high recoveries (96.5-103.7%), and (c) satisfactory reproducibility (<6.3%). Graphical abstract Rhodium nanoparticles catalyze the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of H2O2 to produce a blue reaction product. The effect is exploited in photometric assays for hydrogen peroxide and glucose.
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Affiliation(s)
- Tatiana G Choleva
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - Vasiliki A Gatselou
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - George Z Tsogas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - Dimosthenis L Giokas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
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13
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Wang X, Wang M, Lei R, Zhu SF, Zhao Y, Chen C. Chiral Surface of Nanoparticles Determines the Orientation of Adsorbed Transferrin and Its Interaction with Receptors. ACS NANO 2017; 11:4606-4616. [PMID: 28460159 DOI: 10.1021/acsnano.7b00200] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
When nanoparticles are exposed to a physiological environment, a "protein corona" is formed that greatly determines their biological fate. Adsorption of proteins could be influenced by chiral surfaces of nanoparticles; however, very few quantitative studies are available on the interaction of protein with the chiral surface of nanoparticles, and the underlying mechanism remains largely unresolved. We have developed a strategy to quantitatively analyze the adsorption and conformational features of transferrin on gold nanoparticles that are functionalized with d, l, and racemic penicillamine. We used a quartz microbalance platform to monitor the interaction of the adsorbed transferrin with transferrin receptors in HEK cell-derived liposomes. Results show that the chiral surface of nanoparticle determines the orientation and conformation of transferrin, which subsequently affects the interaction and recognition of transferrin with its receptor on the cellular membrane. Transferrin is widely used as a tumor-targeting ligand in cancer treatment and diagnosis since the transferrin receptor is overexpressed on the cell membrane of various types of cancer cells. Thus, the present results will help to expand the knowledge on biological identity of nanoparticles with chiral surfaces in a physiological environment and provide an insight into the rational design of therapeutic nanoparticles.
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Affiliation(s)
- Xinyi Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China and University of Chinese Academy of Sciences , Beijing 100190, China
- College of Science, Shenyang Agricultural University , Shenyang 110866, China
| | - Mingzhe Wang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China and University of Chinese Academy of Sciences , Beijing 100190, China
| | - Rong Lei
- Institute of Plant Quarantine, Chinese Academy of Inspection and Quarantine , Beijing 100029, China
| | - Shui Fang Zhu
- Institute of Plant Quarantine, Chinese Academy of Inspection and Quarantine , Beijing 100029, China
| | - Yuliang Zhao
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China and University of Chinese Academy of Sciences , Beijing 100190, China
| | - Chunying Chen
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety and CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology of China and University of Chinese Academy of Sciences , Beijing 100190, China
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Zhang P, Wang J, Huang H, Qiu K, Huang J, Ji L, Chao H. Enhancing the photothermal stability and photothermal efficacy of AuNRs and AuNTs by grafting with Ru(ii) complexes. J Mater Chem B 2017; 5:671-678. [DOI: 10.1039/c6tb01991a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
In this paper, we found that the ruthenium complex-functionalized AuNRs (AuNRs@Ru) and AuNTs (AuNTs@Ru) exhibited better photothermal stability and higher photothermal efficiency than AuNRs and AuNTs.In vivotumor model studies showed that AuNRs@Ru and AuNRs@Ru were effective for the photothermal destruction of tumors.
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Affiliation(s)
- Pingyu Zhang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Jinquan Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Huaiyi Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Kangqiang Qiu
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Juanjuan Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Liangnian Ji
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
| | - Hui Chao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry
- School of Chemistry
- Sun Yat-Sen University
- Guangzhou 510275
- China
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15
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Shiraishi Y, Tanaka H, Sakamoto H, Ichikawa S, Hirai T. Amino-substituted spirothiopyran as an initiator for self-assembly of gold nanoparticles. RSC Adv 2015. [DOI: 10.1039/c5ra14752b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Amino-substituted spirothiopyran promotes spontaneous aggregation of gold nanoparticles, producing the aggregates with tunable sizes and narrow size distributions.
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Affiliation(s)
- Yasuhiro Shiraishi
- Research Center for Solar Energy Chemistry
- Division of Chemical Engineering
- Graduate School of Engineering Science
- Osaka University
- Toyonaka 560-8531
| | - Haruki Tanaka
- Research Center for Solar Energy Chemistry
- Division of Chemical Engineering
- Graduate School of Engineering Science
- Osaka University
- Toyonaka 560-8531
| | - Hirokatsu Sakamoto
- Research Center for Solar Energy Chemistry
- Division of Chemical Engineering
- Graduate School of Engineering Science
- Osaka University
- Toyonaka 560-8531
| | - Satoshi Ichikawa
- Institute for NanoScience Design
- Osaka University
- Toyonaka 560-8531
- Japan
| | - Takayuki Hirai
- Research Center for Solar Energy Chemistry
- Division of Chemical Engineering
- Graduate School of Engineering Science
- Osaka University
- Toyonaka 560-8531
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16
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Prado-Gotor R, Grueso E, Perez-Tejeda P, Jimenez-Ruiz A, Carnerero JM. Free energy of binding of cationic metal complexes to AuNPs through electron-transfer processes. SOFT MATTER 2014; 10:8482-8488. [PMID: 25238328 DOI: 10.1039/c4sm01546k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
AuNP effects on the oxidation reaction of [Ru(NH3)5pz](2+) with S2O8(2-) were studied. Experimental results show the effects produced by gold nanoparticles of different sizes, which are then discussed by using an approach based on the two-state model. Changes in the observed reactivity are explained by a change in the degree of association of the reactants to the nanoclusters, which depends on the negative surface potential of the gold nanoparticles. TEM and zeta potential measurements show that this potential determines the binding strength of one of the reactants ([Ru(NH3)5pz](2+)) to the citrate gold surface. The number of binding sites on a citrate nanoparticle receptor has also been determined. The experimental results confirm that an electron transfer reaction can be used as a probe for the determination of the free energy of binding of cationic metal complexes to gold nanoparticles.
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Affiliation(s)
- R Prado-Gotor
- Department of Physical Chemistry, Faculty of Chemistry, University of Seville, C/Profesor García González, s/n, 41012 Seville, Spain.
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17
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Tsogas GZ, Giokas DL, Vlessidis AG. Ultratrace Determination of Silver, Gold, and Iron Oxide Nanoparticles by Micelle Mediated Preconcentration/Selective Back-Extraction Coupled with Flow Injection Chemiluminescence Detection. Anal Chem 2014; 86:3484-92. [DOI: 10.1021/ac404071v] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- George Z. Tsogas
- Laboratory of Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Epirus 45110, Greece
| | - Dimosthenis L. Giokas
- Laboratory of Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Epirus 45110, Greece
| | - Athanasios G. Vlessidis
- Laboratory of Analytical
Chemistry, Department of Chemistry, University of Ioannina, Ioannina, Epirus 45110, Greece
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18
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Browning LM, Huang T, Xu XHN. Real-time in vivo imaging of size-dependent transport and toxicity of gold nanoparticles in zebrafish embryos using single nanoparticle plasmonic spectroscopy. Interface Focus 2014; 3:20120098. [PMID: 24427540 DOI: 10.1098/rsfs.2012.0098] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Noble metal nanoparticles (NPs) show distinctive plasmonic optical properties and superior photostability, enabling them to serve as photostable multi-coloured optical molecular probes and sensors for real-time in vivo imaging. To effectively study biological functions in vivo, it is essential that the NP probes are biocompatible and can be delivered into living organisms non-invasively. In this study, we have synthesized, purified and characterized stable (non-aggregated) gold (Au) NPs (86.2 ± 10.8 nm). We have developed dark-field single NP plasmonic microscopy and spectroscopy to study their transport into early developing zebrafish embryos (cleavage stage) and their effects on embryonic development in real-time at single NP resolution. We found that single Au NPs (75-97 nm) passively diffused into the embryos via their chorionic pore canals, and stayed inside the embryos throughout their entire development (120 h). The majority of embryos (96 ± 3%) that were chronically incubated with the Au NPs (0-20 pM) for 120 h developed to normal zebrafish, while an insignificant percentage of embryos developed to deformed zebrafish (1 ± 1)% or dead (3 ± 3)%. Interestingly, we did not observe dose-dependent effects of the Au NPs (0-20 pM) on embryonic development. By comparing with our previous studies of smaller Au NPs (11.6 ± 0.9 nm) and similar-sized Ag NPs (95.4 ± 16.0 nm), we found that the larger Au NPs are more biocompatible than the smaller Au NPs, while the similar-sized Ag NPs are much more toxic than Au NPs. This study offers in vivo assays and single NP microscopy and spectroscopy to characterize the biocompatibility and toxicity of single NPs, and new insights into the rational design of more biocompatible plasmonic NP imaging probes.
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Affiliation(s)
- Lauren M Browning
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
| | - Tao Huang
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry , Old Dominion University , Norfolk, VA 23529 , USA
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19
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Shiraishi Y, Tanaka K, Shirakawa E, Sugano Y, Ichikawa S, Tanaka S, Hirai T. Light-Triggered Self-Assembly of Gold Nanoparticles Based on Photoisomerization of Spirothiopyran. Angew Chem Int Ed Engl 2013; 52:8304-8. [DOI: 10.1002/anie.201302430] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 05/18/2013] [Indexed: 02/03/2023]
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20
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Shiraishi Y, Tanaka K, Shirakawa E, Sugano Y, Ichikawa S, Tanaka S, Hirai T. Light-Triggered Self-Assembly of Gold Nanoparticles Based on Photoisomerization of Spirothiopyran. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302430] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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21
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Lee KJ, Browning LM, Nallathamby PD, Xu XHN. Study of charge-dependent transport and toxicity of peptide-functionalized silver nanoparticles using zebrafish embryos and single nanoparticle plasmonic spectroscopy. Chem Res Toxicol 2013; 26:904-17. [PMID: 23621491 DOI: 10.1021/tx400087d] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Nanomaterials possess unusually high surface area-to-volume ratios and surface-determined physicochemical properties. It is essential to understand their surface-dependent toxicity in order to rationally design biocompatible nanomaterials for a wide variety of applications. In this study, we have functionalized the surfaces of silver nanoparticles (Ag NPs, 11.7 ± 2.7 nm in diameter) with three biocompatible peptides (CALNNK, CALNNS, CALNNE) to prepare positively (Ag-CALNNK NPs(+ζ)), negatively (Ag-CALNNS NPs(-2ζ)), and more negatively charged NPs (Ag-CALNNE NPs(-4ζ)), respectively. Each peptide differs in a single amino acid at its C-terminus, which minimizes the effects of peptide sequences and serves as a model molecule to create positive, neutral, and negative charges on the surface of the NPs at pH 4-10. We have studied their charge-dependent transport into early developing (cleavage-stage) zebrafish embryos and their effects on embryonic development using dark-field optical microscopy and spectroscopy (DFOMS). We found that all three Ag-peptide NPs passively diffused into the embryos via their chorionic pore canals, and stayed inside the embryos throughout their entire development (120 h), showing charge-independent diffusion modes and charge-dependent diffusion coefficients. Notably, the NPs create charge-dependent toxic effects on embryonic development, showing that the Ag-CALNNK NPs(+ζ) (positively charged) are the most biocompatible while the Ag-CALNNE NPs(-4ζ) (more negatively charged) are the most toxic. By comparing with our previous studies of the same sized citrated Ag and Au NPs, the Ag-peptide NPs are much more biocompatible than the citrated Ag NPs, and nearly as biocompatible as the Au NPs, showing the dependence of nanotoxicity upon the surface charges, surface functional groups, and chemical compositions of the NPs. This study also demonstrates powerful applications of single NP plasmonic spectroscopy for quantitative analysis of single NPs in vivo and in tissues, and reveals the possibility of rational design of biocompatible NPs.
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Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529, USA
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22
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Zou B, Liu Y, Yan X, Huang C. Gold nanoparticles based digital color analysis for quinidine detection. CHINESE SCIENCE BULLETIN-CHINESE 2013. [DOI: 10.1007/s11434-013-5708-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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23
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Wang X, Zou M, Huang H, Ren Y, Li L, Yang X, Li N. Gold nanoparticle enhanced fluorescence anisotropy for the assay of single nucleotide polymorphisms (SNPs) based on toehold-mediated strand-displacement reaction. Biosens Bioelectron 2013; 41:569-75. [DOI: 10.1016/j.bios.2012.09.023] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Accepted: 09/15/2012] [Indexed: 10/27/2022]
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24
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Asadirad AM, Erno Z, Branda NR. Photothermal release of singlet oxygen from gold nanoparticles. Chem Commun (Camb) 2013; 49:5639-41. [DOI: 10.1039/c3cc42217h] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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25
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Makhsin SR, Razak KA, Noordin R, Zakaria ND, Chun TS. The effects of size and synthesis methods of gold nanoparticle-conjugated MαHIgG4 for use in an immunochromatographic strip test to detect brugian filariasis. NANOTECHNOLOGY 2012; 23:495719. [PMID: 23164811 DOI: 10.1088/0957-4484/23/49/495719] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This study describes the properties of colloidal gold nanoparticles (AuNPs) with sizes of 20, 30 and 40 nm, which were synthesized using citrate reduction or seeding-growth methods. Likewise, the conjugation of these AuNPs to mouse anti-human IgG(4) (MαHIgG(4)) was evaluated for an immunochromatographic (ICG) strip test to detect brugian filariasis. The morphology of the AuNPs was studied based on the degree of ellipticity (G) of the transmission electron microscopy images. The AuNPs produced using the seeding-growth method showed lower ellipticity (G ≤ 1.11) as compared with the AuNPs synthesized using the citrate reduction method (G ≤ 1.18). Zetasizer analysis showed that the AuNPs that were synthesized using the seeding-growth method were almost monodispersed with a lower polydispersity index (PDI; PDI≤0.079), as compared with the AuNPs synthesized using the citrate reduction method (PDI≤0.177). UV-visible spectroscopic analysis showed a red-shift of the absorbance spectra after the reaction with MαHIgG(4), which indicated that the AuNPs were successfully conjugated. The optimum concentration of the BmR1 recombinant antigen that was immobilized on the surface of the ICG strip on the test line was 1.0 mg ml(-1). When used with the ICG test strip assay and brugian filariasis serum samples, the conjugated AuNPs-MαHIgG(4) synthesized using the seeding-growth method had faster detection times, as compared with the AuNPs synthesized using the citrate reduction method. The 30 nm AuNPs-MαHIgG(4), with an optical density of 4 from the seeding-growth method, demonstrated the best performance for labelling ICG strips because it displayed the best sensitivity and the highest specificity when tested with serum samples from brugian filariasis patients and controls.
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Affiliation(s)
- Siti Rabizah Makhsin
- School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia
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26
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Zhang P, Chen S, Kang Y, Long Y. Trace mercury ion determination based on the highly selective redox reaction between stannous ion and mercury ion enhanced by gold nanoparticles. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2012; 99:347-352. [PMID: 23022615 DOI: 10.1016/j.saa.2012.08.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Revised: 08/03/2012] [Accepted: 08/12/2012] [Indexed: 06/01/2023]
Abstract
A novel resonance light scattering (RLS) spectrometric method for mercury ions (Hg(2+)) determination has been established in this article. Mercury (Hg) nanoparticle formed from the highly selective redox reaction between citrate-stabilized stannous ions (Sn(2+)) and Hg(2+). As a result, the RLS intensities of the system can be enhanced and it can be sensitized in the presence of very little amount of gold nanoparticles (AuNPs). According to this phenomenon, trace Hg(2+) in real water sample has been determined directly by RLS spectrometry. It has been found that the enhanced RLS intensities (ΔI(RLS)) characterized at 395 nm are proportional to the concentration of Hg(2+) in the range of 0.1-30 μmol L(-1) with a detection limit (3σ) of 0.051 μmol L(-1). The method described herein has good sensitivity, selectivity, and without complicated sample pretreatment. Moreover, the feasibility for the analysis of Hg(2+) in a wastewater sample was identified with a good recovery (100.2-106.3%).
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Affiliation(s)
- Pingping Zhang
- Key Laboratory of Theoretical Chemistry and Molecular Simulation of Ministry of Education of China, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
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27
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Electrochemical behaviors of novel electroactive Au nanoparticles protected by self-assembled monolayers. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2012. [DOI: 10.1007/s13738-012-0163-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Venediktov EA, Rozhkova EP. Formation of gold nanoparticles in the system constituted by chloroauric acid and ED-20 epoxy oligomer. RUSS J APPL CHEM+ 2012. [DOI: 10.1134/s1070427212090029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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29
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Li MJ, Liu X, Nie MJ, Wu ZZ, Yi CQ, Chen GN, Yam VWW. New Rhenium(I) Complexes: Synthesis, Photophysics, Cytotoxicity, and Functionalization of Gold Nanoparticles for Sensing of Esterase. Organometallics 2012. [DOI: 10.1021/om300256u] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Mei-Jin Li
- Key Laboratory of Analysis and
Detection Technology for Food Safety (Ministry of Education and Fujian
Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Xing Liu
- Key Laboratory of Analysis and
Detection Technology for Food Safety (Ministry of Education and Fujian
Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Mei-Juan Nie
- Key Laboratory of Analysis and
Detection Technology for Food Safety (Ministry of Education and Fujian
Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Zhao-Zhen Wu
- Key Laboratory of Analysis and
Detection Technology for Food Safety (Ministry of Education and Fujian
Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Chang-Qing Yi
- School of Engineering, Sun Yat-Sen University, Guangzhou 510275, People's
Republic of China
| | - Guo-Nan Chen
- Key Laboratory of Analysis and
Detection Technology for Food Safety (Ministry of Education and Fujian
Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Vivian Wing-Wah Yam
- Department of Chemistry, The University of Hong Kong, Pokfulam
Road, Hong Kong SAR, People's Republic of China
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30
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Lee KJ, Nallathamby PD, Browning LM, Desai T, Cherukuri PK, Xu XHN. Single nanoparticle spectroscopy for real-time in vivo quantitative analysis of transport and toxicity of single nanoparticles in single embryos. Analyst 2012; 137:2973-86. [PMID: 22563577 DOI: 10.1039/c2an35293a] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Nanomaterials exhibit distinctive physicochemical properties and promise a wide range of applications from nanotechnology to nanomedicine, which raise serious concerns about their potential environmental impacts on ecosystems. Unlike any conventional chemicals, nanomaterials are highly heterogeneous, and their properties can alter over time. These unique characteristics underscore the importance of study of their properties and effects on living organisms in real time at single nanoparticle (NP) resolution. Here we report the development of single-NP plasmonic microscopy and spectroscopy (dark-field optical microscopy and spectroscopy, DFOMS) and ultrasensitive in vivo assay (cleavage-stage zebrafish embryos, critical aquatic species) to study transport and toxicity of single silver nanoparticles (Ag NPs, 95.4 ± 16.0 nm) on embryonic developments. We synthesized and characterized purified and stable (non-aggregation) Ag NPs, determined their sizes and doses (number), and their transport mechanisms and effects on embryonic development in vivo in real time at single-NP resolution. We found that single Ag NPs passively entered the embryos through their chorionic pores via random Brownian diffusion and stayed inside the embryos throughout their entire development (120 h), suggesting that the embryos can bio-concentrate trace NPs from their environment. Our studies show that higher doses and larger sizes of Ag NPs cause higher toxic effects on embryonic development, demonstrating that the embryos can serve as ultrasensitive in vivo assays to screen biocompatibility and toxicity of the NPs and monitor their potential release into aquatic ecosystems.
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Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
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31
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Huang T, Browning LM, Xu XHN. Far-field photostable optical nanoscopy (PHOTON) for real-time super-resolution single-molecular imaging of signaling pathways of single live cells. NANOSCALE 2012; 4:2797-2812. [PMID: 22331098 DOI: 10.1039/c2nr11739h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Cellular signaling pathways play crucial roles in cellular functions and design of effective therapies. Unfortunately, study of cellular signaling pathways remains formidably challenging because sophisticated cascades are involved, and a few molecules are sufficient to trigger signaling responses of a single cell. Here we report the development of far-field photostable-optical-nanoscopy (PHOTON) with photostable single-molecule-nanoparticle-optical-biosensors (SMNOBS) for mapping dynamic cascades of apoptotic signaling pathways of single live cells in real-time at single-molecule (SM) and nanometer (nm) resolutions. We have quantitatively imaged single ligand molecules (tumor necrosis factor α, TNFα) and their binding kinetics with their receptors (TNFR1) on single live cells; tracked formation and internalization of their clusters and their initiation of intracellular signaling pathways in real-time; and studied apoptotic signaling dynamics and mechanisms of single live cells with sufficient temporal and spatial resolutions. This study provides new insights into complex real-time dynamic cascades and molecular mechanisms of apoptotic signaling pathways of single live cells. PHOTON provides superior imaging and sensing capabilities and SMNOBS offer unrivaled biocompatibility and photostability, which enable probing of signaling pathways of single live cells in real-time at SM and nm resolutions.
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Affiliation(s)
- Tao Huang
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
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32
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Lee KJ, Browning LM, Nallathamby PD, Desai T, Cherukuri PK, Xu XHN. In vivo quantitative study of sized-dependent transport and toxicity of single silver nanoparticles using zebrafish embryos. Chem Res Toxicol 2012; 25:1029-46. [PMID: 22486336 DOI: 10.1021/tx300021u] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Nanomaterials possess distinctive physicochemical properties (e.g., small sizes and high surface area-to-volume ratios) and promise a wide variety of applications, ranging from the design of high quality consumer products to effective disease diagnosis and therapy. These properties can lead to toxic effects, potentially hindering advances in nanotechnology. In this study, we have synthesized and characterized purified and stable (nonaggregation) silver nanoparticles (Ag NPs, 41.6 ± 9.1 nm in average diameter) and utilized early developing (cleavage-stage) zebrafish embryos (critical aquatic and eco- species) as in vivo model organisms to probe the diffusion and toxicity of Ag NPs. We found that single Ag NPs (30-72 nm diameters) passively diffused into the embryos through chorionic pores via random Brownian motion and stayed inside the embryos throughout their entire development (120 hours-post-fertilization, hpf). Dose- and size-dependent toxic effects of the NPs on embryonic development were observed, showing the possibility of tuning biocompatibility and toxicity of the NPs. At lower concentrations of the NPs (≤0.02 nM), 75-91% of embryos developed into normal zebrafish. At the higher concentrations of NPs (≥0.20 nM), 100% of embryos became dead. At the concentrations in between (0.02-0.2 nM), embryos developed into various deformed zebrafish. Number and sizes of individual Ag NPs embedded in tissues of normal and deformed zebrafish at 120 hpf were quantitatively analyzed, showing deformed zebrafish with higher number of larger NPs than normal zebrafish and size-dependent nanotoxicity. By comparing with our previous studies of smaller Ag NPs (11.6 ± 3.5 nm), we found striking size-dependent nanotoxicity that, at the same molar concentration, the larger Ag NPs (41.6 ± 9.1 nm) are more toxic than the smaller Ag NPs (11.6 ± 3.5 nm).
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Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, United States
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33
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Yang PJ, Chu HC, Lee YH, Kobayashi T, Chen TC, Lin HC. Quenching effects of gold nanoparticles in nanocomposites formed in water-soluble conjugated polymer nanoreactors. POLYMER 2012. [DOI: 10.1016/j.polymer.2011.12.049] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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34
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Wang AJ, Li YF, Wen M, Yang G, Feng JJ, Yang J, Wang HY. Melamine assisted one-pot synthesis of Au nanoflowers and their catalytic activity towards p-nitrophenol. NEW J CHEM 2012. [DOI: 10.1039/c2nj40380c] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Von White G, Kerscher P, Brown RM, Morella JD, McAllister W, Dean D, Kitchens CL. Green Synthesis of Robust, Biocompatible Silver Nanoparticles Using Garlic Extract. JOURNAL OF NANOMATERIALS 2012; 2012:730746. [PMID: 24683414 PMCID: PMC3966315 DOI: 10.1155/2012/730746] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
This paper details a facile approach for the synthesis of stable and monodisperse silver nanoparticles performed at ambient/low temperature where Allium sativum (garlic) extract functions as the silver salt reducing agent during nanoparticle synthesis as well as the post-synthesis stabilizing ligands. Varying the synthesis conditions provides control of particle size, size-distribution, and kinetics of particle formation. Infrared spectroscopy, energy dispersive x-ray chemical analysis, and high performance liquid chromatography indicated that the carbohydrates present in the garlic extract are the most likely nanoparticle stabilizing chemistry. The synthesized silver nanoparticles also demonstrate potential for biomeical applications, owing to the 1) enhanced stability in biological media, 2) resistance to oxidation by the addition of H2O2, 3) ease and scalability of synthesis, and 4) lack of harsh chemicals required for synthesis. Cytotoxicity assays indicated no decrease in cellular proliferation for vascular smooth muscle cells and 3T3 fibroblasts at a concentration of 25 μg/ml, confirming that garlic extract prepared silver nanoparticles are ideal candidates for future experimentation and implementation into biomedical applications.
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Affiliation(s)
- Gregory Von White
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634
| | - Petra Kerscher
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634
| | - Ryan M. Brown
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634
| | - Jacob D. Morella
- Department of Chemical and Biomolecular Engineering, Clemson University, Clemson, SC 29634
| | | | - Delphine Dean
- Department of Bioengineering, Clemson University, Clemson, SC 29634
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Study on Controlled Size, Shape and Dispersity of Gold Nanoparticles (AuNPs) Synthesized via Seeded-Growth Technique for Immunoassay Labeling. ACTA ACUST UNITED AC 2011. [DOI: 10.4028/www.scientific.net/amr.364.504] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This study describes the formation of spherical gold nanoparticles (AuNPs) using a simple seeded-growth technique. The size and surface morphology of AuNPs were investigated using transmission electron microscopy (TEM) and UV-Vis spectrophotometer was used to determine the wavelength and absorption of AuNPs. In the seed stage, the effect of trisodium citrate volume was studied. The size of AuNPs at seed stage was varied from 15 to 40 nm with decreasing volume of trisodium citrate. In the growth stage, the effects of seed solution volume and concentration of hydroxylamine were studied. The size of AuNPs produced became larger when the amount of seed solution was reduced. This approach was beneficial to produce AuNPs with the size range from 15 to 150 nm. The increase of hydroxylamine concentration increased the size of AuNPs. However, after the concentration of hydroxylamine reached supersaturation condition (3 M NH2OH.HCl), the AuNPs formed in a bulk and clusters. Selected sizes of AuNPs were then conjugated to antibody and proved by testing on the immunoassay test strip. The observation using naked eyes for the appearance of red lines on the immunoassay test strip showed that AuNPs were successfully conjugated to antibody and specifically bound to the antigen drawn on the strip assay by tested with positive and negative serum of the disease.
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37
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Xiang MH, Xu X, Li N, Li KA. Self-assembly of lysozyme on the surfaces of gold nanoparticles. CHINESE CHEM LETT 2011. [DOI: 10.1016/j.cclet.2011.01.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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38
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Wang X, Xu Y, Chen Y, Li L, Liu F, Li N. The gold-nanoparticle-based surface plasmon resonance light scattering and visual DNA aptasensor for lysozyme. Anal Bioanal Chem 2011; 400:2085-91. [PMID: 21461986 DOI: 10.1007/s00216-011-4943-1] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 03/20/2011] [Accepted: 03/21/2011] [Indexed: 11/25/2022]
Abstract
We developed a new simple and sensitive assay for lysozyme based on gold nanoparticle plasmon resonance light scattering (PRLS) measurement and naked-eye detection using for the first time the lysozyme DNA aptamer as the recognition element. Lysozyme DNA aptamer could stabilize gold nanoparticles (AuNPs) at high ionic strength. Introducing lysozyme to the system easily triggered the aggregation of AuNPs, producing a red-to-blue color change of the solution, red-shifted plasmon absorption, and enhanced plasmon resonance light scattering. The linear range was found to be 0.2∼4 nM for 0.7 nM AuNPs, 0.3∼6 nM for 1.4 nM AuNPs and 0.6∼8 nM for 2.1 nM AuNPs. About 0.1 nM lysozyme can produce an observable enhancement of PRLS signal. For visual detection, 1 nM lysozyme can produce a very distinctive color change. Satisfactory recoveries were obtained for simulated saliva and diluted urine samples, indicating that the method has potential for analyses of clinical samples. The simplicity and high sensitivity that are consistent with the resources and needs of many laboratories makes this method a good choice for routine analysis.
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Affiliation(s)
- Xinyi Wang
- Beijing National Laboratory for Molecular Sciences, Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
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39
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Decreased resonance light scattering of citrate-stabilized gold nanoparticles by chemisorption of mercaptoacetic acid. Colloids Surf A Physicochem Eng Asp 2010. [DOI: 10.1016/j.colsurfa.2010.08.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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40
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Nallathamby PD, Lee KJ, Desai T, Xu XHN. Study of the multidrug membrane transporter of single living Pseudomonas aeruginosa cells using size-dependent plasmonic nanoparticle optical probes. Biochemistry 2010; 49:5942-53. [PMID: 20540528 PMCID: PMC2912454 DOI: 10.1021/bi100268k] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Multidrug membrane transporters (efflux pumps) in both prokaryotes and eukaryotes are responsible for impossible treatments of a wide variety of diseases, including infections and cancer, underscoring the importance of better understanding of their structures and functions for the design of effective therapies. In this study, we designed and synthesized two silver nanoparticles (Ag NPs) with average diameters of 13.1 +/- 2.5 nm (8.1-38.6 nm) and 91.0 +/- 9.3 nm (56-120 nm) and used the size-dependent plasmonic spectra of single NPs to probe the size-dependent transport kinetics of MexAB-OprM (multidrug transporter) in Pseudomonas aeruginosa in real time at nanometer resolution. We found that the level of accumulation of intracellular NPs in wild-type (WT) cells was higher than in nalB1 (overexpression of MexAB-OprM) but lower than in DeltaABM (deletion of MexAB-OprM). In the presence of proton ionophores (CCCP, inhibitor of proton motive force), we found that intracellular NPs in nalB1 were nearly doubled. These results suggest that MexAB-OprM is responsible for the extrusion of NPs out of cells and NPs (orders of magnitude larger than conventional antibiotics) are the substrates of the transporter, which indicates that the substrates may trigger the assembly of the efflux pump optimized for the extrusion of the encountered substrates. We found that the smaller NPs stayed inside the cells longer than larger NPs, suggesting the size-dependent efflux kinetics of the cells. This study shows that multisized NPs can be used to mimic various sizes of antibiotics for probing the size-dependent efflux kinetics of multidrug membrane transporters in single living cells.
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Affiliation(s)
| | - Kerry J. Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
| | - Tanvi Desai
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
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41
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Lee KJ, Browning LM, Huang T, Ding F, Nallathamby PD, Xu XHN. Probing of multidrug ABC membrane transporters of single living cells using single plasmonic nanoparticle optical probes. Anal Bioanal Chem 2010; 397:3317-28. [PMID: 20544182 DOI: 10.1007/s00216-010-3864-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2010] [Revised: 05/19/2010] [Accepted: 05/19/2010] [Indexed: 01/16/2023]
Abstract
Currently, molecular mechanisms of multidrug ABC (ATP-binding cassette) membrane transporters remain elusive. In this study, we synthesized and characterized purified spherically shaped silver nanoparticles (Ag NPs) (11.8 +/- 2.6 nm in diameter), which were stable (non-aggregation) in PBS buffer and inside single living cells. We used the size-dependent localized surface plasmon resonance (LSPR) spectra of single Ag NPs to determine their sizes and to probe the size-dependent transport kinetics of the ABC (BmrA, BmrA-EGFP) transporters in single living cells (Bacillus subtilis) in real time at nanometer resolution using dark-field optical microscopy and spectroscopy (DFOMS). The results show that the smaller NPs stayed longer inside the cells than larger NPs, suggesting size-dependent efflux kinetics of the membrane transporter. Notably, accumulation and efflux kinetics of intracellular NPs for single living cells depended upon the cellular expression level of BmrA, NP concentrations, and a pump inhibitor (25 muM, orthovanadate), suggesting that NPs are substrates of BmrA transporters and that passive diffusion driven by concentration gradients is the primary mechanism by which the NPs enter the cells. The accumulation and efflux kinetics of intracellular NPs for given cells are similar to those observed using a substrate (Hoechst dye) of BmrA, demonstrating that NPs are suitable probes for study of multidrug membrane transporters of single living cells in real-time. Unlike fluorescent probes, single Ag NPs exibit size-dependent LSPR spectra and superior photostability, enabling them to probe the size-dependent efflux kinetics of membrane transporters of single living cells in real-time for better understanding of multidrug resistance.
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Affiliation(s)
- Kerry J Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529, USA
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42
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Nallathamby PD, Xu XHN. Study of cytotoxic and therapeutic effects of stable and purified silver nanoparticles on tumor cells. NANOSCALE 2010; 2:942-52. [PMID: 20648292 PMCID: PMC2914687 DOI: 10.1039/c0nr00080a] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We have synthesized and purified silver nanoparticles (Ag NPs) (11.3+/-2.3 nm) that are stable (non-aggregated) in cell culture medium and inside single living cells. We have developed new imaging methods to characterize sizes and number of single NPs in the medium and in single living cells in real-time and determine their stability (non-aggregation) in the medium and in single living cells at single NP resolution. These new approaches allow us to study toxic and therapeutic effects of single Ag NPs on tumor cells (L929, mouse fibroblast cells) with determined sizes and concentrations (doses) of NPs over time at single NP and single cell resolution. We found that Ag NPs inhibited the growth and division of tumor cells and their nuclei, in a dose and time dependent manner, showing significant inhibitory effects and abnormal cells with giant undivided nuclei or multiple nuclei beyond 12 h incubation. The results show that Ag NPs inhibited the segregation of chromosomes, but not their replication. Intracellular Ag NPs were well distributed in the cell population, and located in the nuclei and cytoplasm with higher numbers in the cytoplasm. This study demonstrates the possibility of using Ag NPs to inhibit the growth and division of tumor cells and using their cytotoxicity for potential therapeutic treatments. This study offers a new method to count the number of single NPs in the medium for characterization of their concentration and stability at single NP resolution over time.
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Affiliation(s)
- Prakash D. Nallathamby
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529
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43
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Browning LM, Lee KJ, Huang T, Nallathamby PD, Lowman JE, Xu XHN. Random walk of single gold nanoparticles in zebrafish embryos leading to stochastic toxic effects on embryonic developments. NANOSCALE 2009; 1:138-52. [PMID: 20644873 PMCID: PMC2914682 DOI: 10.1039/b9nr00053d] [Citation(s) in RCA: 123] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We have synthesized and characterized stable (non-aggregating, non-photobleaching and non-blinking), nearly monodisperse and highly-pure Au nanoparticles, and used them to probe nanoparticle transport and diffusion in cleavage-stage zebrafish embryos and to study their effects on embryonic development in real-time. We found that single Au nanoparticles (11.6 +/- 0.9 nm in diameter) passively diffused into the chorionic space of the embryos via their chorionic pore canals and continued their random-walk through chorionic space and into the inner mass of embryos. Diffusion coefficients of single nanoparticles vary dramatically (2.8 x 10(-11) to 1.3 x 10(-8) cm(2) s(-1)) as nanoparticles diffuse through the various parts of embryos, suggesting highly diverse transport barriers and viscosity gradients in the embryos. The amount of Au nanoparticles accumulated in embryos increases with nanoparticle concentration increases. Interestingly, however, their effects on embryonic development are not proportionally related to their concentration. The majority of embryos (74% on average) chronically incubated with 0.025-1.2 nM Au nanoparticles for 120 h developed to normal zebrafish, with some (24%) being dead and few (2%) deformed. We have developed a new approach to image and characterize individual Au nanoparticles embedded in tissues using histology sample preparation methods and localized surface plasmon resonance spectra of single nanoparticles. We found Au nanoparticles in various parts of normally developed and deformed zebrafish, suggesting that the random-walk of nanoparticles in embryos during their development might have led to stochastic effects on embryonic development. These results show that Au nanoparticles are much more biocompatible with (less toxic to) the embryos than the Ag nanoparticles that we reported previously, suggesting that they are better suited as biocompatible probes for imaging embryos in vivo. The results provide powerful evidences that the biocompatibility and toxicity of nanoparticles is highly dependent on their chemical properties, and that the embryos can serve as effective in vivo assays to screen their biocompatibility.
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Affiliation(s)
| | | | | | | | | | - Xiao-Hong Nancy Xu
- To whom correspondence should be addressed: ; www.odu.edu/sci/xu/xu.htm; Tel/fax: (757) 683-5698
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Wang X, Zou M, Xu X, Lei R, Li K, Li N. Determination of human urinary kanamycin in one step using urea-enhanced surface plasmon resonance light-scattering of gold nanoparticles. Anal Bioanal Chem 2009; 395:2397-403. [DOI: 10.1007/s00216-009-3134-9] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2009] [Revised: 08/18/2009] [Accepted: 09/04/2009] [Indexed: 11/29/2022]
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45
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46
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Xiang M, Xu X, Liu F, Li N, Li KA. Gold Nanoparticle Based Plasmon Resonance Light-Scattering Method as a New Approach for Glycogen−Biomacromolecule Interactions. J Phys Chem B 2009; 113:2734-8. [DOI: 10.1021/jp8065822] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Minghui Xiang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiao Xu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Feng Liu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Na Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Ke-An Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Institute of Analytical Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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47
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Huang T, Nallathamby PD, Xu XHN. Photostable single-molecule nanoparticle optical biosensors for real-time sensing of single cytokine molecules and their binding reactions. J Am Chem Soc 2009; 130:17095-105. [PMID: 19053435 DOI: 10.1021/ja8068853] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We synthesized tiny stable silver nanoparticles (2.6 +/- 1.1 nm) and used its small surface area and functional groups to control single molecule detection (SMD) volumes on single nanoparticles. These new approaches allowed us to develop intrinsic single molecule nanoparticle optical biosensors (SMNOBS) for sensing and imaging of single human cytokine molecules, recombinant human tumor necrosis factor-alpha (TNFalpha), and probing its binding reaction with single monoclonal antibody (MAB) molecules in real-time. We found that SMNOBS retained their biological activity over months and showed exceptionally high photostability. Our study illustrated that smaller nanoparticles exhibited higher dependence of optical properties on surface functional groups, making it a much more sensitive biosensor. Localized surface plasmon resonance spectra (LSPRS) of SMNOBS showed a large red shift of peak wavelength of 29 +/- 11 nm, as single TNFalpha molecules bound with single MAB molecules on single nanoparticles. Utilizing its LSPRS, we quantitatively measured its binding reaction in real time at single molecule (SM) level, showing stochastic binding kinetics of SM reactions with binding equilibrium times ranging from 30 to 120 min. SMNOBS exhibited extraordinarily high sensitivity and selectivity, and a notably wide dynamic range of 0-200 ng/mL (0-11.4 nM). Thus, SMNOBS is well suited for the fundamental study of biological functions of single protein molecules and SM interactions of chemical functional groups with the surface of nanoparticles, as well as development of effective disease diagnosis and therapy.
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Affiliation(s)
- Tao Huang
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529, USA
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48
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Nallathamby PD, Lee KJ, Xu XHN. Design of stable and uniform single nanoparticle photonics for in vivo dynamics imaging of nanoenvironments of zebrafish embryonic fluids. ACS NANO 2008; 2:1371-80. [PMID: 19206304 PMCID: PMC2770580 DOI: 10.1021/nn800048x] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
We report here the use of a simple washing approach to reduce the ionic strength of the solution, which increased the thickness of the electric double layer on the surface of silver (Ag) nanoparticles and thereby enhanced their surface zeta-potential. This approach allowed us to prepare optically uniform (75-99%) and purified Ag nanoparticles (11.3 +/- 2.3 nm) that are stable (nonaggregation) in solution for months, permitting them to become robust and widely used single nanoprobes for in vivo optical imaging. These Ag nanoparticles show remarkable photostability and serve as single nanoparticle photonic probes for continuous imaging nanoenvironments of segmentation-stage zebrafish embryos for hours. Unlike other particle tracking experiments, we utilized size-dependent localized surface plasmon resonance spectra (LSPRS) (colors) of single Ag nanoparticles to determine given colored (sized) nanoparticles in situ and used the monodisperse color (size) of nanoparticles to simultaneously measure viscosities and flow patterns of multiple proximal nanoenvironments in segmentation-stage zebrafish embryos in real time. We found new interesting counterclockwise flow patterns with rates ranging from 0.06 to 1.8 microm/s and stunningly high viscosity gradients spanning two orders of magnitude in chorion space of the embryos, with the highest viscosity observed around the center of chorion space and the lower viscosity at the interfacial areas near the surface of both chorion layers and inner mass of the embryos. This study demonstrates the possibility of using individual monodisperse nanophotonics to probe the roles of embryonic fluid dynamics in embryonic development.
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Affiliation(s)
- Prakash D. Nallathamby
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529
| | - Kerry J. Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529
| | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, Virginia 23529
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49
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Lee KJ, Nallathamby PD, Browning LM, Osgood CJ, Xu XHN. In vivo imaging of transport and biocompatibility of single silver nanoparticles in early development of zebrafish embryos. ACS NANO 2007; 1:133-43. [PMID: 19122772 PMCID: PMC2613370 DOI: 10.1021/nn700048y] [Citation(s) in RCA: 520] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Real-time study of the transport and biocompatibility of nanomaterials in early embryonic development at single-nanoparticle resolution can offer new knowledge about the delivery and effects of nanomaterials in vivo and provide new insights into molecular transport mechanisms in developing embryos. In this study, we directly characterized the transport of single silver nanoparticles into an in vivo model system (zebrafish embryos) and investigated their effects on early embryonic development at single-nanoparticle resolution in real time. We designed highly purified and stable (not aggregated and no photodecomposition) nanoparticles and developed single-nanoparticle optics and in vivo assays to enable the study. We found that single Ag nanoparticles (5-46 nm) are transported into and out of embryos through chorion pore canals (CPCs) and exhibit Brownian diffusion (not active transport), with the diffusion coefficient inside the chorionic space (3 x 10(-9) cm(2)/s) approximately 26 times lower than that in egg water (7.7 x 10(-8) cm(2)/s). In contrast, nanoparticles were trapped inside CPCs and the inner mass of the embryos, showing restricted diffusion. Individual Ag nanoparticles were observed inside embryos at each developmental stage and in normally developed, deformed, and dead zebrafish, showing that the biocompatibility and toxicity of Ag nanoparticles and types of abnormalities observed in zebrafish are highly dependent on the dose of Ag nanoparticles, with a critical concentration of 0.19 nM. Rates of passive diffusion and accumulation of nanoparticles in embryos are likely responsible for the dose-dependent abnormalities. Unlike other chemicals, single nanoparticles can be directly imaged inside developing embryos at nanometer spatial resolution, offering new opportunities to unravel the related pathways that lead to the abnormalities.
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Affiliation(s)
- Kerry J. Lee
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
| | | | - Lauren M. Browning
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
| | | | - Xiao-Hong Nancy Xu
- Department of Chemistry and Biochemistry, Old Dominion University, Norfolk, VA 23529
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50
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Jebb M, Sudeep PK, Pramod P, Thomas KG, Kamat PV. Ruthenium(II) Trisbipyridine Functionalized Gold Nanorods. Morphological Changes and Excited-State Interactions. J Phys Chem B 2007; 111:6839-44. [PMID: 17477562 DOI: 10.1021/jp070701j] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Gold nanorods synthesized using cetyltrimethylammonium bromide and tetraoctylammonium bromide as stabilizers are functionalized with a thiol derivative of ruthenium(II) trisbipyridyl complex [(Ru(bpy)3(2+)-C5-SH] in dodecanethiol using a place-exchange reaction. The changes in the plasmon absorption bands and transmission electron micrographs indicate significant changes in the gold rod morphology during the place-exchange reaction. The (Ru(bpy)(3)2+-C5-SH in its excited state undergoes quick deactivation when bound to gold nanorods. More than 60% of the emission was quenched when [(Ru(bpy)3(2+)-C5-SH] was bound to gold nanorods. Emission decay analysis indicates that the energy transfer rate constant is greater than 10(10) s(-1).
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Affiliation(s)
- Meghan Jebb
- Radiation Laboratory, Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556-0579, USA
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