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Beiderman M, Ashkenazy A, Segal E, Motiei M, Salomon A, Sadan T, Fixler D, Popovtzer R. Optimization of Gold Nanorod Features for the Enhanced Performance of Plasmonic Nanocavity Arrays. ACS OMEGA 2021; 6:29071-29077. [PMID: 34746596 PMCID: PMC8567385 DOI: 10.1021/acsomega.1c04301] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Nanoplasmonic biosensors incorporating noble metal nanocavity arrays are widely used for the detection of various biomarkers. Gold nanorods (GNRs) have unique properties that can enhance spectroscopic detection capabilities of such nanocavity-based biosensors. However, the contribution of the physical properties of multiple GNRs to resonance enhancement of gold nanocavity arrays requires further characterization and elucidation. In this work, we study how GNR aspect ratio (AR) and surface area (SA) modify the plasmonic resonance spectrum of a gold triangular nanocavity array by both simulations and experiments. The finite integration technique (FIT) simulated the extinction spectrum of the gold nanocavity array with 300 nm periodicity onto which the GNRs of different ARs and SAs are placed. Simulations showed that matching of the GNRs longitudinal peak, which is affected by AR, to the nanocavity array's spectrum minima can optimize signal suppression and shifting. Moreover, increasing SA of the matched GNRs increased the spectral variations of the array. Experiments confirmed that GNRs conjugated to a gold triangular nanocavity array of 300 nm periodicity caused spectrum suppression and redshift. Our findings demonstrate that tailoring of the GNR AR and SA parameters to nanoplasmonic arrays has the potential to greatly improve spectral variations for enhanced plasmonic biosensing.
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Affiliation(s)
- Marianna Beiderman
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Ariel Ashkenazy
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Elad Segal
- Department
of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Menachem Motiei
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Adi Salomon
- Department
of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Tamar Sadan
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Dror Fixler
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Rachela Popovtzer
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel
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2
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Yariv I, Kannan S, Harel Y, Levy E, Duadi H, Lellouche JP, Michaeli S, Fixler D. Iterative optical technique for detecting anti-leishmania nanoparticles in mouse lesions. BIOMEDICAL OPTICS EXPRESS 2021; 12:4496-4509. [PMID: 34457428 PMCID: PMC8367277 DOI: 10.1364/boe.425798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/16/2021] [Accepted: 06/17/2021] [Indexed: 06/13/2023]
Abstract
Nanoparticles (NPs) based drugs for topical administration are gaining interest in the biomedical world. However, a study tool of their penetration depth to the different tissue layers without additional markers or contrast agents is required in order to relieve safety concerns. While common diagnostic tools, e.g. X-ray, computed tomography or magnetic resonance imaging, can provide in vivo detection of the metallic NPs, their resolution cannot determine the exact penetration depth to the thin skin layers. In this work, we propose the noninvasive nanophotonics iterative multi-plane optical property extraction (IMOPE) technique for the novel iron-based NPs detection in leishmaniasis lesions. The optical properties of the different tissue layers: epidermis, dermis, subcutaneous fat and muscle, were examined before and after topical drug administration. The potential topical drug was detected in the epidermis (∼13µm) and dermis (∼160µm) layers in mice lesions at different stages of the disease (two or four weeks post infection). The lesion size influence on the detection was also observed, where in larger lesions the IMOPE senses a greater presence of the topical drug.
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Affiliation(s)
- Inbar Yariv
- Faculty of Engineering, Bar
Ilan University, Ramat Gan 5290002, Israel
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
| | - Sriram Kannan
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
- The Mina and Everard Goodman Faculty of
Life Sciences, Bar Ilan University, Ramat
Gan 5290002, Israel
| | - Yifat Harel
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
- Department of Chemistry Faculty of Exact
Sciences, Bar Ilan University, Ramat Gan
5290002, Israel
| | - Esthy Levy
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
- Department of Chemistry Faculty of Exact
Sciences, Bar Ilan University, Ramat Gan
5290002, Israel
| | - Hamootal Duadi
- Faculty of Engineering, Bar
Ilan University, Ramat Gan 5290002, Israel
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
| | - Jean-Paul Lellouche
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
- Department of Chemistry Faculty of Exact
Sciences, Bar Ilan University, Ramat Gan
5290002, Israel
| | - Shulamit Michaeli
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
- The Mina and Everard Goodman Faculty of
Life Sciences, Bar Ilan University, Ramat
Gan 5290002, Israel
| | - Dror Fixler
- Faculty of Engineering, Bar
Ilan University, Ramat Gan 5290002, Israel
- The Institute of Nanotechnology and
Advanced Materials, Bar Ilan University,
Ramat Gan 5290002, Israel
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3
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Chakraborty R, Leshem-Lev D, Kornowski R, Fixler D. The Scattering of Gold Nanorods Combined with Differential Uptake, Paving a New Detection Method for Macrophage Subtypes Using Flow Cytometery. NANO LETTERS 2020; 20:8360-8368. [PMID: 33063518 PMCID: PMC7662919 DOI: 10.1021/acs.nanolett.0c03525] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The strategy of identification for M1 and M2 macrophages both in vivo and in vitro would help to predict the health condition of the individual. Here, we introduced a solution to this problem with the advantage of both the phagocytic nature of macrophages and the scattering effect of gold nanorods (GNRs). The internalized GNRs, relating to their extent of intake, caused a conspicuous scattering profile at the red channel in flow cytometry, overruling the contribution of the cellular side scatters. This internalization is solely governed by the surface chemistry of GNRs. The PAH-GNRs showed maximum intake potency followed by Cit-, PSS-, and PEG-GNRs. On a substantial note, PAH-GNRs lead to differential uptake between M1 and M2 cells, with three times higher intake in M2 cells over M1. This is the first report of employing the scattering of unlabeled GNRs to discriminate M1 and M2 cell types using a flow cytometer.
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Affiliation(s)
- Ruchira Chakraborty
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
| | - Dorit Leshem-Lev
- Cardiovascular
Biology Laboratories at the Felsenstein Medical Research Center and
the Cardiology Department, Rabin Medical
Center, Petah-Tikva 4941492, Israel
| | - Ran Kornowski
- Cardiovascular
Biology Laboratories at the Felsenstein Medical Research Center and
the Cardiology Department, Rabin Medical
Center, Petah-Tikva 4941492, Israel
| | - Dror Fixler
- Faculty
of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel
- . Tel: 972-3-531-7598
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Olshinka A, Ad-El D, Didkovski E, Weiss S, Ankri R, Goldenberg-Cohen N, Fixler D. Diffusion Reflection Measurements of Antibodies Conjugated to Gold Nanoparticles as a Method to Identify Cutaneous Squamous Cell Carcinoma Borders. MATERIALS 2020; 13:ma13020447. [PMID: 31963462 PMCID: PMC7014005 DOI: 10.3390/ma13020447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/06/2020] [Accepted: 01/13/2020] [Indexed: 12/13/2022]
Abstract
Diffusion reflectance spectroscopy measurements targeted with gold nanoparticles (GNPs) can identify residual cutaneous squamous cell carcinoma (SCC) in excision borders. Human SCC specimens were stained with hematoxylin and eosin to identify tumor borders, and reflected onto an unstained deparaffinized section. Diffusion reflection of three sites (normal and SCC) were measured before and after GNPs targeting. Hyperspectral imaging showed a mean of 2.5 sites with tumor per specimen and 1.2 tumor-free (p < 0.05, t-test). GNPs were detected in 25/30 tumor sites (sensitivity 83.3%, false-negative rate 16.6%) and 12/30 non-tumor sites (specificity 60%, false-positive rate 40%). This study verifies the use of nanotechnology in identifying SCC tumor margins. Diffusion reflection scanning has high sensitivity for detecting the residual tumor.
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Affiliation(s)
- Asaf Olshinka
- Department of Plastic Surgery, Rabin Medical Center—Beilinson Hospital, Petach Tikva 4941492, Israel; (A.O.); (D.A.-E.)
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (E.D.); (S.W.)
| | - Dean Ad-El
- Department of Plastic Surgery, Rabin Medical Center—Beilinson Hospital, Petach Tikva 4941492, Israel; (A.O.); (D.A.-E.)
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (E.D.); (S.W.)
| | - Elena Didkovski
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (E.D.); (S.W.)
- Department of Pathology and Cytology, Rabin Medical Center—Beilinson Hospital, Petach Tikva 4941492, Israel
| | - Shirel Weiss
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv 6997801, Israel; (E.D.); (S.W.)
- The Krieger Eye Research Laboratory, Felsenstein Medical Research Center, Petach Tikva 49100, Israel
| | - Rinat Ankri
- Faculty of Engineering and Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel;
| | - Nitza Goldenberg-Cohen
- The Krieger Eye Research Laboratory, Felsenstein Medical Research Center, Petach Tikva 49100, Israel
- Ruth and Bruce Rappaport Faculty of Medicine, The Technion—Technical Institute of Israel, Haifa 3200003, Israel
- Department of Ophthalmology, Bnai Zion Medical Center, Haifa 3339419, Israel
- Correspondance: (N.G.-C.); (D.F.); Tel.: +972-4-835-9554 (N.G.-C.); +972-3-531-7598 (D.F.)
| | - Dror Fixler
- Faculty of Engineering and Institute of Nanotechnology and Advanced Materials, Bar Ilan University, Ramat Gan 5290002, Israel;
- Correspondance: (N.G.-C.); (D.F.); Tel.: +972-4-835-9554 (N.G.-C.); +972-3-531-7598 (D.F.)
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Yariv I, Shapira C, Duadi H, Fixler D. Media Characterization under Scattering Conditions by Nanophotonics Iterative Multiplane Spectroscopy Measurements. ACS OMEGA 2019; 4:14301-14306. [PMID: 31508554 PMCID: PMC6733169 DOI: 10.1021/acsomega.9b01976] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Accepted: 08/09/2019] [Indexed: 05/21/2023]
Abstract
Characterizing materials is preferably done by multiple wavelengths. In opaque materials, the scattering poses a challenge due to the additional complexity to the spectroscopic measurements. We have previously demonstrated an iterative multiplane method for characterizing materials using the reflection from turbid media. Initial studies were performed in the red wavelength regime (632.8 nm) which is optimal for biomedical applications. However, in order to differentiate between materials, it is better to use multiple wavelengths, as spectroscopy may detect the material fingerprint. In this paper, our iterative multiplane optical property extraction (IMOPE) technique is presented in the blue regime (473 nm). Agar-based solid phantom measurements were conducted and compared to our theoretical model. Compatibility between experiments in the red and blue wavelengths shows the robustness of our technique.
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Fixler D, Tzur C, Zalevsky Z. Genetic Algorithm-Based Design for Metal-Enhanced Fluorescent Nanostructures. MATERIALS (BASEL, SWITZERLAND) 2019; 12:ma12111766. [PMID: 31151325 PMCID: PMC6600714 DOI: 10.3390/ma12111766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 05/20/2019] [Accepted: 05/28/2019] [Indexed: 06/09/2023]
Abstract
In this paper, we present our optimization tool for fluorophore-conjugated metal nanostructures for the purpose of designing novel contrast agents for multimodal bioimaging. Contrast agents are of great importance to biological imaging. They usually include nanoelements causing a reduction in the need for harmful materials and improvement in the quality of the captured images. Thus, smart design tools that are based on evolutionary algorithms and machine learning definitely provide a technological leap in the fluorescence bioimaging world. This article proposes the usage of properly designed metallic structures that change their fluorescence properties when the dye molecules and the plasmonic nanoparticles interact. The nanostructures design and evaluation processes are based upon genetic algorithms, and they result in an optimal separation distance, orientation angles, and aspect ratio of the metal nanostructure.
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Affiliation(s)
- Dror Fixler
- Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - Chen Tzur
- Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
| | - Zeev Zalevsky
- Faculty of Engineering and the Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 5290002, Israel.
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Ankri R, Chakraborty R, Motiei M, Fixler D. Three-Dimensional Highly Sensitive Diffusion Reflection-Based Imaging Method for the in Vivo Localization of Atherosclerosis Plaques Following Gold Nanorods Accumulation. ACS OMEGA 2018; 3:6134-6142. [PMID: 30023941 PMCID: PMC6045478 DOI: 10.1021/acsomega.8b00750] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 05/23/2018] [Indexed: 05/11/2023]
Abstract
In this work, we present a novel, simple, and highly accurate three-dimensional (3D) diffusion reflection (DR) imaging system and method for the detection of accumulation sites of gold nanorods (GNRs) within the tissue. GNRs are intensively used for diagnosis purposes of varied diseases, mainly because of their ability to well absorb visible light, which introduces them as terrific contrast agents in various imaging and theranostics methods. Lately, these GNRs unique absorption properties have served in DR intensity-based measurements, suggesting a novel diagnostic tool, DR-GNRs. In this paper, we show a new measurement system and method for DR, based on its radial collection from the tissue. These radial measurements enabled a unique 3D presentation of the DR-GNR, introducing the dimensions ρ for the radius, θ for the angle, and Γ for the reflected intensity. On the basis of the diffusion model, which enables to correlate between the sample's optical properties and its reflectance, a unique, radial map is presented. This map introduces the slopes of the DR curves in each measured angle, which are linearly correlated with the tissue's optical properties and with the GNRs concentrations within the tissue, thus enables the exact radial localization of the GNRs in the sample. We show the detection of macrophage accumulation in tissue-like phantoms, as well as the localization of unstable plaques in hyperlipidemic mice, in vivo. This highly accurate, powerful technology paves the way toward a real-time detection method that can be successfully integrated in the rapid increasing field of personalized medicine.
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Affiliation(s)
| | | | | | - Dror Fixler
- E-mail: . Phone: +972-3-5317598. Fax: +972-3-7384050 (D.F.)
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Koga JI, Matoba T, Egashira K. Anti-inflammatory Nanoparticle for Prevention of Atherosclerotic Vascular Diseases. J Atheroscler Thromb 2016; 23:757-65. [PMID: 27108537 DOI: 10.5551/jat.35113] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recent technical innovation has enabled chemical modifications of small materials and various kinds of nanoparticles have been created. In clinical settings, nanoparticle-mediated drug delivery systems have been used in the field of cancer care to deliver therapeutic agents specifically to cancer tissues and to enhance the efficacy of drugs by gradually releasing their contents. In addition, nanotechnology has enabled the visualization of various molecular processes by targeting proteinases or inflammation. Nanoparticles that consist of poly (lactic-co-glycolic) acid (PLGA) deliver therapeutic agents to monocytes/macrophages and function as anti-inflammatory nanoparticles in combination with statins, angiotensin receptor antagonists, or agonists of peroxisome proliferator-activated receptor-γ (PPARγ). PLGA nanoparticle-mediated delivery of pitavastatin has been shown to prevent inflammation and ameliorated features associated with plaque ruptures in hyperlipidemic mice. PLGA nanoparticles were also delivered to tissues with increased vascular permeability and nanoparticles incorporating pitavastatin, injected intramuscularly, were retained in ischemic tissues and induced therapeutic arteriogenesis. This resulted in attenuation of hind limb ischemia. Ex vivo treatment of vein grafts with imatinib nanoparticles before graft implantation has been demonstrated to inhibit lesion development. These results suggest that nanoparticle-mediated drug delivery system can be a promising strategy as a next generation therapy for atherosclerotic vascular diseases.
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Affiliation(s)
- Jun-Ichiro Koga
- The Department of Cardiovascular Research, Development, and Translational Medicine, Center for Disruptive Cardiovascular Medicine, Kyushu University
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Motiei M, Dreifuss T, Betzer O, Panet H, Popovtzer A, Santana J, Abourbeh G, Mishani E, Popovtzer R. Differentiating Between Cancer and Inflammation: A Metabolic-Based Method for Functional Computed Tomography Imaging. ACS NANO 2016; 10:3469-77. [PMID: 26886076 DOI: 10.1021/acsnano.5b07576] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
One of the main limitations of the highly used cancer imaging technique, PET-CT, is its inability to distinguish between cancerous lesions and post treatment inflammatory conditions. The reason for this lack of specificity is that [(18)F]FDG-PET is based on increased glucose metabolic activity, which characterizes both cancerous tissues and inflammatory cells. To overcome this limitation, we developed a nanoparticle-based approach, utilizing glucose-functionalized gold nanoparticles (GF-GNPs) as a metabolically targeted CT contrast agent. Our approach demonstrates specific tumor targeting and has successfully distinguished between cancer and inflammatory processes in a combined tumor-inflammation mouse model, due to dissimilarities in angiogenesis occurring under different pathologic conditions. This study provides a set of capabilities in cancer detection, staging and follow-up, and can be applicable to a wide range of cancers that exhibit high metabolic activity.
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Affiliation(s)
- Menachem Motiei
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
| | - Tamar Dreifuss
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
| | - Oshra Betzer
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
| | - Hana Panet
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
| | - Aron Popovtzer
- Davidoff Cancer Center, Rabin Medical Center , Beilinson Campus, Petah Tiqwa 4941492, Israel
| | - Jordan Santana
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
| | - Galith Abourbeh
- Cyclotron-Radiochemistry-MicroPET Unit, Hadassah-Hebrew University Hospital , Jerusalem 91120, Israel
| | - Eyal Mishani
- Cyclotron-Radiochemistry-MicroPET Unit, Hadassah-Hebrew University Hospital , Jerusalem 91120, Israel
| | - Rachela Popovtzer
- Faculty of Engineering and the Institutes of Nanotechnology & Advanced Materials, Bar-Ilan University , Ramat-Gan 5290002, Israel
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