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Marzi A, Eder KM, Barroso Á, Kemper B, Schnekenburger J. Quantitative Phase Imaging as Sensitive Screening Method for Nanoparticle-Induced Cytotoxicity Assessment. Cells 2024; 13:697. [PMID: 38667312 PMCID: PMC11049110 DOI: 10.3390/cells13080697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
The assessment of nanoparticle cytotoxicity is challenging due to the lack of customized and standardized guidelines for nanoparticle testing. Nanoparticles, with their unique properties, can interfere with biochemical test methods, so multiple tests are required to fully assess their cellular effects. For a more reliable and comprehensive assessment, it is therefore imperative to include methods in nanoparticle testing routines that are not affected by particles and allow for the efficient integration of additional molecular techniques into the workflow. Digital holographic microscopy (DHM), an interferometric variant of quantitative phase imaging (QPI), has been demonstrated as a promising method for the label-free assessment of the cytotoxic potential of nanoparticles. Due to minimal interactions with the sample, DHM allows for further downstream analyses. In this study, we investigated the capabilities of DHM in a multimodal approach to assess cytotoxicity by directly comparing DHM-detected effects on the same cell population with two downstream biochemical assays. Therefore, the dry mass increase in RAW 264.7 macrophages and NIH-3T3 fibroblast populations measured by quantitative DHM phase contrast after incubation with poly(alkyl cyanoacrylate) nanoparticles for 24 h was compared to the cytotoxic control digitonin, and cell culture medium control. Viability was then determined using a metabolic activity assay (WST-8). Moreover, to determine cell death, supernatants were analyzed for the release of the enzyme lactate dehydrogenase (LDH assay). In a comparative analysis, in which the average half-maximal effective concentration (EC50) of the nanocarriers on the cells was determined, DHM was more sensitive to the effect of the nanoparticles on the used cell lines compared to the biochemical assays.
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Affiliation(s)
- Anne Marzi
- Biomedical Technology Center, University of Muenster, Mendelstraße 17, D-48149 Muenster, Germany; (K.M.E.); (Á.B.); (B.K.)
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2
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Guo J, Xu S, Majeed U, Ye J, Zhang H, Xue W, Luo Y. Size-Related Pathway Flux Analysis of Ultrasmall Iron Oxide Nanoparticles in Macrophage Cell RAW264.7 for Safety Evaluation. ACS OMEGA 2024; 9:3480-3490. [PMID: 38284085 PMCID: PMC10809237 DOI: 10.1021/acsomega.3c07081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/20/2023] [Accepted: 12/25/2023] [Indexed: 01/30/2024]
Abstract
The endocytosis, intracellular transport, and exocytosis of different-sized nanoparticles were reported to greatly affect their efficacy and biosafety. The quantitation of endocytosis and exocytosis as well as subcellular distribution of nanoparticles might be an effective approach based on transport pathway flux analysis. Thus, the key parameters that could present the effects of three different-sized ultrasmall iron oxide nanoparticles (USIONPs) were systematically investigated in RAW264.7 cells. The endocytosis and exocytosis of USIONPs were related to their sizes; 15.4 nm of S2 could be quickly and more internalized and excreted in comparison to S1 (7.8 nm) and S3 (30.7 nm). In RAW264.7 cells, USIONPs were observed in endosomes, lysosomes, the Golgi apparatus, and autophagosomes via a transmission electron microscope. Based on flux analysis of intracellular transport pathways of USIONPs, it was found that 43% of S1, 40% of S2, and 44% of S3 were individually transported extracellularly through the Golgi apparatus-involved middle-fast pathway, while 24% of S1, 23% of S2, and 26% of S3 were transported through the fast recycling endosomal pathway, and the residues were transported through the slower speed lysosomal pathway. USIONPs might be transported via size-related endocytosis and exocytosis pathways. The pathway flux could be calculated on the basis of disturbance analysis of special transporters as well as their coding genes. Because there were rate differences among these transport pathways, this pathway flux could anticipate the intracellular remaining time and distribution of different-sized nanoparticles, the function exertion, and side effects of nanomaterials. The size of the nanomaterials could be optimized for improving functions and safety.
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Affiliation(s)
- Jiaqing Guo
- School
of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Shixin Xu
- School
of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Usman Majeed
- College
of Food Science and Technology, Northwest
University, Xi’an 710069, China
| | - Jianming Ye
- College
of Food Science and Technology, Northwest
University, Xi’an 710069, China
| | - Huaxin Zhang
- School
of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Weiming Xue
- School
of Chemical Engineering, Northwest University, Xi’an 710069, China
| | - Yane Luo
- College
of Food Science and Technology, Northwest
University, Xi’an 710069, China
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Pellas V, Sallem F, Blanchard J, Miche A, Concheso SM, Méthivier C, Salmain M, Boujday S. Silica-coated gold nanorods biofunctionalization for localized surface plasmon resonance (LSPR) biosensing. Talanta 2023; 255:124245. [PMID: 36610258 DOI: 10.1016/j.talanta.2022.124245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 12/06/2022] [Accepted: 12/30/2022] [Indexed: 01/01/2023]
Abstract
We introduce here the engineering of nanobiosensors designed from gold nanorods coated with an ultrathin layer of silica (AuNR@SiO2) and biofunctionalized with antibodies for the Localized Surface Plasmon Resonance (LSPR) biosensing of proteins. Despite the outstanding properties of AuNRs, their use for LSPR biosensing is limited due to the presence of the surfactant cetyltrimethylammonium bromide (CTAB) - mandatory for their synthesis - which forms a strongly-bounded and positively-charged bilayer at their surface and significantly complicates their bio-functionalization. When coated with a thin layer of silica, these nanomaterials exhibit an improved sensitivity to refractive index change which augurs for better analytical performances. Here, we undertook an in-depth investigation of the biofunctionalization of AuNR@SiO2via three different routes to design and test a label-free LSPR biosensor operating in solution. In the first route, we took advantage of the negatively charged external silica shell to immobilize anti-rabbit IgG antibody by electrostatic physisorption. In the second and third routes, the silica surface was reacted with thiol or aldehyde terminated silanes, subsequently utilized to covalently attach anti-rabbit IgG antibody to the surface. The resulting nanoprobes were characterized by a wide range of physical methods (TEM, XPS, DLS, ELS and UV-Visible spectroscopy) then tested for the biosensing of rabbit-IgG. The three nanobiosensors maintain an excellent colloidal stability after analyte recognition and exhibit extremely high analytical performances in terms of specificity and dynamic range, with an LoD down to 12 ng/mL.
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Affiliation(s)
- Vincent Pellas
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France; Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005, Paris, France
| | - Fadoua Sallem
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Juliette Blanchard
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Antoine Miche
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Sara Martinez Concheso
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Christophe Méthivier
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France
| | - Michèle Salmain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire (IPCM), F-75005, Paris, France.
| | - Souhir Boujday
- Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), F-75005, Paris, France.
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4
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Salah D, Moghanm FS, Arshad M, Alanazi AA, Latif S, El-Gammal MI, Shimaa EM, Elsayed S. Polymer-Peptide Modified Gold Nanorods to Improve Cell Conjugation and Cell labelling for Stem Cells Photoacoustic Imaging. Diagnostics (Basel) 2021; 11:1196. [PMID: 34209370 PMCID: PMC8305251 DOI: 10.3390/diagnostics11071196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/27/2021] [Accepted: 06/27/2021] [Indexed: 01/04/2023] Open
Abstract
The use of gold nanorods (GNRs) as a contrast agent in bioimaging and cell tracking has numerous advantages, primarily due to the unique optical properties of gold nanorods which allow for the use of infrared regions when imaging. Owing to their unique geometry, Au NRs exhibit surface plasmon modes in the near-infrared wavelength range, which is ideal for carrying out optical measurements in biological fluids and tissue. Gold nanorod functionalization is essential, since the Cetyltrimethyl ammonium bromide CTAB gold nanorods are toxic, and for further in vitro and in vivo experiments the nanorods should be functionalized to become optically stable and biocompatible. In the present study, gold nanorods with an longitudinal surface plasmon resonance (LSPR) position around 800 nm were synthesized in order to be used for photoacoustic imaging applications for stem cell tracking. The gold nanorods were functionalized using both thiolated poly (ethylene glycol) (PEG) to stabilize the gold nanorods surface and a CALNN-TAT peptide sequence. Both ligands were attached to the gold nanorods through an Au-sulfur bond. CALNN-TAT is known as a cell penetrating peptide which ensures endocytosis of the gold nanorods inside the mesenchymal stem cells of mice (MSCD1). Surface modifications of gold nanorods were achieved using optical spectroscopy (UV-VIS), electron microscopy (TEM), zeta-potential, and FTIR. Gold nanorods were incubated in MSCD1 in order to achieve a cellular uptake that was characterized by a transmission electron microscope (TEM). For photoacoustic imaging, Multi-Spectral Optoacoustic Tomography (MSOT) was used. The results demonstrated good cellular uptake for PEG-CALNN-TAT GNRs and the successful use of modified gold nanorods as both a contrast agent in photoacoustic imaging and as a novel tracking bioimaging technique.
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Affiliation(s)
- Dina Salah
- Biophysics Group, Physics Department, Ain Shams University, Cairo 11566, Egypt
| | - Farahat S. Moghanm
- Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt; (F.S.M.); (E.M.S.)
| | - Muhammad Arshad
- Department of Chemical Engineering, College of Engineering, King Khalid University, P.O. Box 394, Abha 61321, Saudi Arabia;
| | - Abdulaziz A. Alanazi
- Department of Chemistry, College of Science and Humanities in Al-Kharj, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Salman Latif
- Department of Chemistry, College of Science, University of Hail, P.O. Box 2440, Hail 81451, Saudi Arabia;
| | - Maie I. El-Gammal
- Environmental Science Department, Faculty of Science, Damietta University, Damietta 35511, Egypt;
| | - Elmahdy M. Shimaa
- Soil and Water Department, Faculty of Agriculture, Kafrelsheikh University, Kafr El-Sheikh 33516, Egypt; (F.S.M.); (E.M.S.)
| | - Salah Elsayed
- Agricultural Engineering, Evaluation of Natural Resources Department, Environmental Studies and Research Institute, University of Sadat City, Minufiya 32897, Egypt;
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Cavigli L, Khlebtsov BN, Centi S, Khlebtsov NG, Pini R, Ratto F. Photostability of Contrast Agents for Photoacoustics: The Case of Gold Nanorods. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:E116. [PMID: 33419130 PMCID: PMC7825532 DOI: 10.3390/nano11010116] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
Plasmonic particles as gold nanorods have emerged as powerful contrast agents for critical applications as the photoacoustic imaging and photothermal ablation of cancer. However, their unique efficiency of photothermal conversion may turn into a practical disadvantage, and expose them to the risk of overheating and irreversible photodamage. Here, we outline the main ideas behind the technology of photoacoustic imaging and the use of relevant contrast agents, with a main focus on gold nanorods. We delve into the processes of premelting and reshaping of gold nanorods under illumination with optical pulses of a typical duration in the order of few ns, and we present different approaches to mitigate this issue. We undertake a retrospective classification of such approaches according to their underlying, often implicit, principles as: constraining the initial shape; or speeding up their thermal coupling to the environment by lowering their interfacial thermal resistance; or redistributing the input energy among more particles. We discuss advantages, disadvantages and contexts of practical interest where one solution may be more appropriate than the other.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Boris N. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia; (B.N.K.); (N.G.K.)
| | - Sonia Centi
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Nikolai G. Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, 410049 Saratov, Russia; (B.N.K.); (N.G.K.)
- Saratov State University, 83 Ulitsa Astrakhanskaya, 410026 Saratov, Russia
| | - Roberto Pini
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
| | - Fulvio Ratto
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; (S.C.); (R.P.); (F.R.)
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6
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Zhang Y, Hai Y, Miao Y, Qi X, Xue W, Luo Y, Fan H, Yue T. The toxicity mechanism of different sized iron nanoparticles on human breast cancer (MCF7) cells. Food Chem 2020; 341:128263. [PMID: 33038805 DOI: 10.1016/j.foodchem.2020.128263] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Revised: 09/07/2020] [Accepted: 09/27/2020] [Indexed: 02/07/2023]
Abstract
The toxicity mechanism of superparamagnetic iron oxide nanoparticles (SPIONs) were examined multidimensionally to reduce the toxicity risks. A higher dosage and more suitable size of SPIONs enhanced the uptake amount into MCF7 cells, leading to a higher specific uptake rate of SPIONs with the formation of more reactive oxygen species (ROS). ROS was an intrinsic factor of cell death. Interestingly, the smaller SPIONs (S1) liked to produce more ROS in mitochondria to damage mitochondria, while the larger SPIONs (S2 and S3) promoted ROS yield in plasma to destroy cytomembrane. Furthermore, ROS synthesis pathways were the partial of cell death pathways, and ferroptosis pathway was the main contributor to mitochondrial and cytomembrane damage. Meanwhile, ROS amount was well coincided to gene expression level of these cell death pathways, which inferred RNA-seq might be a new method to evaluate the oxidative stress and potential toxicity of nanomaterials.
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Affiliation(s)
- Yuanxiao Zhang
- College of Food Science and Technology, Northwest University, Xi'an, Shaanxi 710069, China
| | - Yu Hai
- College of Food Science and Technology, Northwest University, Xi'an, Shaanxi 710069, China
| | - Yuqing Miao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Xiao Qi
- College of Food Science and Technology, Northwest University, Xi'an, Shaanxi 710069, China
| | - Weiming Xue
- School of Chemical Engineering, Northwest University, Xi'an, Shaanxi 710069, China
| | - Yane Luo
- College of Food Science and Technology, Northwest University, Xi'an, Shaanxi 710069, China.
| | - Haiming Fan
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069, China
| | - Tianli Yue
- College of Food Science and Technology, Northwest University, Xi'an, Shaanxi 710069, China; Laboratory of Quality and Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Beijing, China
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7
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Borri C, Albino M, Innocenti C, Pineider F, Cavigli L, Centi S, Sangregorio C, Ratto F, Pini R. A bionic shuttle carrying multi-modular particles and holding tumor-tropic features. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111338. [PMID: 32919687 DOI: 10.1016/j.msec.2020.111338] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 07/10/2020] [Accepted: 08/01/2020] [Indexed: 01/08/2023]
Abstract
The systemic delivery of composite nanoparticles remains an outstanding challenge in cancer nanomedicine, and the principal reason is a complex interplay of biological barriers. In this regard, adaptive cell transfer may represent an alternative solution to circumvent these barriers down to the tumor microenvironment. Here, tumor-tropic macrophages are proposed as a tool to draw and vehiculate modular nanoparticles integrating magnetic and plasmonic components. The end result is a bionic shuttle that exhibits a plasmonic band within the so-called therapeutic window arising from as much as 40 pg Au per cell, magnetization in the order of 150 pemu per cell, and more than 90% of the pristine viability and chemotactic activity of its biological component, until at least two days of preparation. Its synergistic combination of plasmonic, magnetic and tumor-tropic functions is assessed in vitro for applications as magnetic guidance or sorting, with a propulsion around 4 μm s-1 for a magnetic gradient of 0.8 T m-1, the optical hyperthermia of cancer, with stability of photothermal conversion to temperatures exceeding 50∘C, and the photoacoustic imaging of cancer under realistic conditions. These results collectively suggest that a bionic design may be a promising roadmap to reconcile the efforts for multifunctionality and targeted delivery, which are both key goals in nanomedicine.
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Affiliation(s)
- Claudia Borri
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Martin Albino
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy
| | - Claudia Innocenti
- Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy
| | - Francesco Pineider
- Dipartimento di Chimica e Chimica Industriale, Università di Pisa, Via Giuseppe Moruzzi 13, 56124 Pisa, Italy
| | - Lucia Cavigli
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
| | - Claudio Sangregorio
- Dipartimento di Chimica "Ugo Schiff", Università degli Studi di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, FI, Italy; Istituto di Chimica dei Composti OrganoMetallici, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, (FI), Italy.
| | - Fulvio Ratto
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy.
| | - Roberto Pini
- Istituto di Fisica Applicata "Nello Carrara", Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, FI, Italy
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Cavigli L, Milanesi A, Khlebtsov BN, Centi S, Ratto F, Khlebtsov NG, Pini R. Impact of Kapitza resistance on the stability and efficiency of photoacoustic conversion from gold nanorods. J Colloid Interface Sci 2020; 578:358-365. [PMID: 32535418 DOI: 10.1016/j.jcis.2020.05.108] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 05/29/2020] [Indexed: 12/29/2022]
Abstract
Plasmonic particles have been proposed for a broad variety of optical and hybrid applications, including the photothermal ablation and photoacoustic imaging of cancer, or their integration in photonic sensors. Here, we address the effect of thermal resistance at the gold-water interface, or Kapitza resistance, on the performance of photoacoustic conversion of gold nanorods. Our findings point to possible strategies for the optimization of plasmonic particles as contrast agents for imaging, or even as transducers for biosensing. We perform numerical simulations that project a simultaneous increase of efficiency and stability of photoacoustic conversion with a decrease of Kapitza resistance. We suggest an effective approach to modulate Kapitza resistance by including underresolved features as roughness or the presence of adsorbates. Inspired by this idea, we synthesize a rough variant of gold nanorods by the deposition and galvanic replacement of a silver shell, where roughness provides higher photoacoustic signals by about 70% and damage thresholds by 120%. In addition, we coat our particles with a protein corona and find a decrease of photoacoustic signals with shell thickness, which may inspire new solutions for biosensors based on a mechanism of photoacoustic transduction. Both our findings are consistent with an effective modulation of Kapitza resistance, which decreases upon roughening, due to an underlying increase of specific surface area, and increases upon coating with a protein shell that may act as a thermal insulation. We discuss possible directions to gain more advantage of our concept for topical applications at the crossroads of plasmonics, biomedical optics and biosensing.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy
| | - Alessio Milanesi
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy; Dipartimento di Chimica 'Ugo Schiff', Universitá degli Studi di Firenze, Via della Lastruccia, 3-13, 50019 Sesto Fiorentino (FI), Italy
| | - Boris N Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia
| | - Sonia Centi
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy.
| | - Nikolai G Khlebtsov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, 13 Prospekt Entuziastov, Saratov 410049, Russia; Saratov State University, 83 Ulitsa Astrakhanskaya, Saratov 410026, Russia
| | - Roberto Pini
- Istituto di Fisica Applicata Nello Carrara, IFAC-CNR, Via Madonna del Piano 10, Sesto Fiorentino 50019, Italy
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9
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Cavigli L, Centi S, Borri C, Tortoli P, Panettieri I, Streit I, Ciofini D, Magni G, Rossi F, Siano S, Ratto F, Pini R. 1064-nm-resonant gold nanorods for photoacoustic theranostics within permissible exposure limits. JOURNAL OF BIOPHOTONICS 2019; 12:e201900082. [PMID: 31155855 DOI: 10.1002/jbio.201900082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 05/03/2019] [Accepted: 05/30/2019] [Indexed: 05/07/2023]
Abstract
Therapeutic and diagnostic methods based on photomechanical effects are attracting much current attention in contexts as oncology, cardiology and vascular surgery, for such applications as photoacoustic imaging or microsurgery. Their underlying mechanism is the generation of ultrasound or cavitation from the interaction of short optical pulses with endogenous dyes or targeted contrast agents. Among the latter, gold nanorods are outstanding candidates, but their use has mainly been reported for photoacoustic imaging and photothermal treatments. Conversely, much less is still known about their value as a precision tool for photomechanical manipulations, such as to impart local damage with high spatial resolution through the expansion and collapse of microbubbles. Here, we address the feasibility of gold nanorods exhibiting a distribution of surface plasmon resonances between about 900 to above 1100 nm as a contrast agent for photoacoustic theranostics. After testing their cytotoxicity and cellular uptake, we discuss their photostability and use to mediate cavitation and the photomechanical destruction of targeted cells. We find that the choice of a plasmonic band peaking around 1064 nm is key to enhance the translational potential of this approach. With respect to the standard alternative of 800 nm, at 1064 nm, relevant regulations on optical exposure are less restrictive and the photonic technology is more mature.
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Affiliation(s)
- Lucia Cavigli
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Sonia Centi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Claudia Borri
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Paolo Tortoli
- Dipartimento di Fisica e Astronomia, Università degli Studi di Firenze, Sesto Fiorentino, Italy
| | - Ilaria Panettieri
- Dipartimento di Ingegneria Meccanica e Aerospaziale, Politecnico di Torino, Torino, Italy
| | | | - Daniele Ciofini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Giada Magni
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Francesca Rossi
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Salvatore Siano
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
| | - Roberto Pini
- Istituto di Fisica Applicata 'Nello Carrara', Consiglio Nazionale delle Ricerche IFAC-CNR, Sesto Fiorentino, Italy
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Kögler M, Ryabchikov YV, Uusitalo S, Popov A, Popov A, Tselikov G, Välimaa AL, Al-Kattan A, Hiltunen J, Laitinen R, Neubauer P, Meglinski I, Kabashin AV. Bare laser-synthesized Au-based nanoparticles as nondisturbing surface-enhanced Raman scattering probes for bacteria identification. JOURNAL OF BIOPHOTONICS 2018; 11:e201700225. [PMID: 29388744 DOI: 10.1002/jbio.201700225] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 01/28/2018] [Accepted: 01/29/2018] [Indexed: 06/07/2023]
Abstract
The ability of noble metal-based nanoparticles (NPs) (Au, Ag) to drastically enhance Raman scattering from molecules placed near metal surface, termed as surface-enhanced Raman scattering (SERS), is widely used for identification of trace amounts of biological materials in biomedical, food safety and security applications. However, conventional NPs synthesized by colloidal chemistry are typically contaminated by nonbiocompatible by-products (surfactants, anions), which can have negative impacts on many live objects under examination (cells, bacteria) and thus decrease the precision of bioidentification. In this article, we explore novel ultrapure laser-synthesized Au-based nanomaterials, including Au NPs and AuSi hybrid nanostructures, as mobile SERS probes in tasks of bacteria detection. We show that these Au-based nanomaterials can efficiently enhance Raman signals from model R6G molecules, while the enhancement factor depends on the content of Au in NP composition. Profiting from the observed enhancement and purity of laser-synthesized nanomaterials, we demonstrate successful identification of 2 types of bacteria (Listeria innocua and Escherichia coli). The obtained results promise less disturbing studies of biological systems based on good biocompatibility of contamination-free laser-synthesized nanomaterials.
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Affiliation(s)
- Martin Kögler
- Drug Research Program, Division of Pharmaceutical Biosciences, Centre for Drug Research, University of Helsinki, Helsinki, Finland
- Chair of Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Yury V Ryabchikov
- Aix-Marseille Univ, CNRS, Marseille, France
- P.N. Lebedev Physical Institute of Russian Academy of Sciences, Moscow, Russia
| | - Sanna Uusitalo
- VTT - Technical Research Centre of Finland, Oulu, Finland
| | - Alexey Popov
- Optoelectronics and Measurement Techniques, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
- ITMO University, St. Petersburg, Russia
| | | | | | - Anna-Liisa Välimaa
- National Resources Institute Finland (LUKE), Bio-based Business and Industry, University of Oulu, Oulu, Finland
| | | | - Jussi Hiltunen
- VTT - Technical Research Centre of Finland, Oulu, Finland
| | - Riitta Laitinen
- Natural Research Institute Finland (LUKE), Bio-based Business and Industry, Turku, Finland
| | - Peter Neubauer
- Chair of Bioprocess Engineering, Institute of Biotechnology, Technische Universität Berlin, Berlin, Germany
| | - Igor Meglinski
- Optoelectronics and Measurement Techniques, Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
- ITMO University, St. Petersburg, Russia
- National Research Nuclear University "MEPhI", Institute of Engineering Physics for Biomedicine (PhysBio), Moscow, Russia
| | - Andrei V Kabashin
- Aix-Marseille Univ, CNRS, Marseille, France
- National Research Nuclear University "MEPhI", Institute of Engineering Physics for Biomedicine (PhysBio), Moscow, Russia
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Borri C, Centi S, Ratto F, Pini R. Polylysine as a functional biopolymer to couple gold nanorods to tumor-tropic cells. J Nanobiotechnology 2018; 16:50. [PMID: 29855304 PMCID: PMC5984317 DOI: 10.1186/s12951-018-0377-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 05/23/2018] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND The delivery of plasmonic particles, such as gold nanorods, to the tumor microenvironment has attracted much interest in biomedical optics for topical applications as the photoacoustic imaging and photothermal ablation of cancer. However, the systemic injection of free particles still crashes into a complexity of biological barriers, such as the reticuloendothelial system, that prevent their efficient biodistribution. In this context, the notion to exploit the inherent features of tumor-tropic cells for the creation of a Trojan horse is emerging as a plausible alternative. RESULTS We report on a convenient approach to load cationic gold nanorods into murine macrophages that exhibit chemotactic sensitivity to track gradients of inflammatory stimuli. In particular, we compare a new model of poly-L-lysine-coated particles against two alternatives of cationic moieties that we have presented elsewhere, i.e. a small quaternary ammonium compound and an arginine-rich cell-penetrating peptide. Murine macrophages that are exposed to poly-L-lysine-coated gold nanorods at a dosage of 400 µM Au for 24 h undertake efficient uptake, i.e. around 3 pg Au per cell, retain the majority of their cargo until 24 h post-treatment and maintain around 90% of their pristine viability, chemotactic and pro-inflammatory functions. CONCLUSIONS With respect to previous models of cationic coatings, poly-L-lysine is a competitive solution for the preparation of biological vehicles of gold nanorods, especially for applications that may require longer life span of the Trojan horse, say in the order of 24 h. This biopolymer combines the cost-effectiveness of small molecules and biocompatibility and efficiency of natural peptides and thus holds potential for translational developments.
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Affiliation(s)
- Claudia Borri
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
- Department of Experimental and Clinical Biomedical Sciences ‘M. Serio’, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy
| | - Sonia Centi
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Fulvio Ratto
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
| | - Roberto Pini
- Institute of Applied Physics ‘N. Carrara’, National Research Council of Italy, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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