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Hu B, Liu R, Liu Q, Lin Z, Shi Y, Li J, Wang L, Li L, Xiao X, Wu Y. Engineering surface patterns on nanoparticles: New insights on nano-bio interactions. J Mater Chem B 2022; 10:2357-2383. [DOI: 10.1039/d1tb02549j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The surface properties of nanoparticles affect their fates in biological systems. Based on nanotechnology and methodology, pioneering works have explored the effects of chemical surface patterns on the behavior of...
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2
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Alaizeri ZM, Alhadlaq HA, Aldawood S, Akhtar MJ, Amer MS, Ahamed M. Facile Synthesis, Characterization, Photocatalytic Activity, and Cytotoxicity of Ag-Doped MgO Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2915. [PMID: 34835679 PMCID: PMC8618491 DOI: 10.3390/nano11112915] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022]
Abstract
Due to unique physicochemical properties, magnesium oxide nanoparticles (MgO NPs) have shown great potential for various applications, including biomedical and environmental remediation. Moreover, the physiochemical properties of MgO NPs can be tailored by metal ion doping that can be utilized in photocatalytic performance and in the biomedical field. There is limited study on the photocatalytic activity and biocompatibility of silver (Ag)-doped MgO NPs. This study was planned for facile synthesis, characterization, and photocatalytic activity of pure and silver (Ag)-doped MgO NPs. In addition, cytotoxicity of pure and Ag-doped MgO NPs was assessed in human normal umbilical vein endothelial cells (HUVECs). Pure MgO NPs and Ag-doped (1, 2, 5, and 7.5 mol%) MgO NPs were prepared via a simple sol-gel procedure. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), photoluminescence (PL), and X-ray photoelectron spectroscopy (XPS) were used to characterize the prepared samples. XRD results showed the preparation of highly crystalline NPs with no impurity peaks. TEM and SEM studies indicate smooth surfaces with almost spherical morphology of MgO NPs, and Ag-doping did not change the morphology. Elemental composition study suggested that Ag is uniformly distributed in MgO particles. Intensity of the PL spectra of MgO NPs decreased with increasing the concentration of Ag dopants. In comparison to pure MgO NPs, Ag-MgO NPs showed higher degradation of methylene blue (MB) dye under UV irradiation. The improved photocatalytic activity of Ag-MgO NPs was related to the effect of dopant concentration on reducing the recombination between electrons and holes. Cytotoxicity studies showed good biocompatibility of pure and Ag-doped MgO NPs with human normal umbilical vein endothelial cells (HUVECs). These results highlighted the potential of Ag-doped MgO NPs in environmental remediation.
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Affiliation(s)
- ZabnAllah M. Alaizeri
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
| | - Hisham A. Alhadlaq
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Saad Aldawood
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Mabrook S. Amer
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Maqusood Ahamed
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
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Josten JP, Felfer PJ. Atom Probe Analysis of Nanoparticles Through Pick and Coat Sample Preparation. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2021; 28:1-10. [PMID: 34099073 DOI: 10.1017/s1431927621000465] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The ability to analyze nanoparticles in the atom probe has often been limited by the complexity of the sample preparation. In this work, we present a method to lift–out single nanoparticles in the scanning electron microscope. First, nanoparticles are dispersed on a lacey carbon grid, then positioned on a sharp substrate tip and coated on all sides with a metallic matrix by physical vapor deposition. Compositional and structural insights are provided for spherical gold nanoparticles and a segregation of silver and copper in silver copper oxide nanorods is shown in 3D atom maps. Using the standard atom probe reconstruction algorithm, data quality is limited by typical standard reconstruction artifacts for heterogeneous specimens (trajectory aberrations) and the choice of suitable coatings for the particles. This approach can be applied to various unsupported free-standing nanoparticles, enables preselection of particles via correlative techniques, and reliably produces well-defined structured samples. The only prerequisite is that the nanoparticles must be large enough to be manipulated, which was done for sizes down to ~50 nm.
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Affiliation(s)
- Jan P Josten
- Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Institute I, Martensstraße 5, 91058Erlangen, Germany
| | - Peter J Felfer
- Department of Materials Science and Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Institute I, Martensstraße 5, 91058Erlangen, Germany
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Atomically resolved tomographic reconstruction of nanoparticles from single projection: Influence of amorphous carbon support. Ultramicroscopy 2020; 221:113177. [PMID: 33290981 DOI: 10.1016/j.ultramic.2020.113177] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/15/2020] [Accepted: 11/21/2020] [Indexed: 11/22/2022]
Abstract
Nanoparticles have a wide range of applications due to their unique geometry and arrangement of atoms. For a precise structure-property correlation, information regarding atomically resolved 3D structures of nanoparticles is utmost beneficial. Though modern aberration-corrected transmission electron microscopes can resolve atoms with the sub-angstrom resolution, an atomic-scale 3D reconstruction of a nanoparticle using Scanning Transmission Electron Microscopy (STEM) based tomographic method faces hurdles due to high electron irradiation damage and "missing-wedge". Instead, inline 3D holography based tomographic reconstructions from single projection registered at low electron doses is more suitable for defining atomic positions at nanostructures. Nanoparticles are generally supported on amorphous carbon film for Transmission Electron Microscopy (TEM) experiments. However, neglecting the influence of carbon film on the tomographic reconstruction of the nanoparticle may lead to ambiguity. To address this issue, the effect of amorphous carbon support was quantitatively studied using simulations and experiments and it was revealed that increasing thickness and/or density of carbon support increases distortion in tomograms.
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Omar R, En Naciri A, Fahes A, Jradi S, Issa A, Kuznetsov D, Shur V, Zelenovskiy P, Battie Y, Akil S. Precise control of the size and gap between gold nanocubes by surface-based synthesis for high SERS performance. SOFT MATTER 2020; 16:1857-1865. [PMID: 31984983 DOI: 10.1039/c9sm02405k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The optical properties of a monolayer of nanocomposite film (PMMA/gold nanocubes) were provided by fitting a proposed theoretical model to spectroscopic ellipsometry (SE) measurements. For such a thin film, these features cannot be successfully determined by means of experimental and conventional effective medium theory such as Maxwell-Garnett or Bruggeman. To make it possible, we developed a model of two classical Lorentz oscillators; one for a PMMA layer and the other for GNCs, revealing one homogeneous layer and rapid analysis without the need for large computational resources. Additionally, we tailored both the size and number of GNCs in the PMMA layer by tuning the synthesis parameters as seen in scanning electron microscopy (SEM) images. In parallel, SE measurements clearly highlighted the change in the optical properties of GNCs as a function of their density on the substrate and dimensions. Our findings demonstrate that SE is an alternative method to characterize layered GNCs on opaque substrates efficiently, which has potential implications for designing other morphologies in the future.
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Affiliation(s)
- Rana Omar
- LCP-A2MC, Institut Jean Barriol, Université de Lorraine, 1 Bd Arago, 57070, Metz, France.
| | - Aotmane En Naciri
- LCP-A2MC, Institut Jean Barriol, Université de Lorraine, 1 Bd Arago, 57070, Metz, France.
| | - Abeer Fahes
- LCP-A2MC, Institut Jean Barriol, Université de Lorraine, 1 Bd Arago, 57070, Metz, France.
| | - Safi Jradi
- L2n, Laboratoire de Lumière, Nanomatériaux, Nanotechnologies, ICD, Université, de Technologie de Troyes, France
| | - Ali Issa
- L2n, Laboratoire de Lumière, Nanomatériaux, Nanotechnologies, ICD, Université, de Technologie de Troyes, France
| | - Dmitry Kuznetsov
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Vladimir Shur
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Pavel Zelenovskiy
- School of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russia
| | - Yann Battie
- LCP-A2MC, Institut Jean Barriol, Université de Lorraine, 1 Bd Arago, 57070, Metz, France.
| | - Suzanna Akil
- LCP-A2MC, Institut Jean Barriol, Université de Lorraine, 1 Bd Arago, 57070, Metz, France.
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Abstract
Atom probe tomography is a well-established analytical instrument for imaging the 3D structure and composition of materials with high mass resolution, sub-nanometer spatial resolution and ppm elemental sensitivity. Thanks to recent hardware developments in Atom Probe Tomography (APT), combined with progress on site-specific focused ion beam (FIB)-based sample preparation methods and improved data treatment software, complex materials can now be routinely investigated. From model samples to complex, usable porous structures, there is currently a growing interest in the analysis of catalytic materials. APT is able to probe the end state of atomic-scale processes, providing information needed to improve the synthesis of catalysts and to unravel structure/composition/reactivity relationships. This review focuses on the study of catalytic materials with increasing complexity (tip-sample, unsupported and supported nanoparticles, powders, self-supported catalysts and zeolites), as well as sample preparation methods developed to obtain suitable specimens for APT experiments.
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Kim SH, Lee JY, Ahn JP, Choi PP. Fabrication of Atom Probe Tomography Specimens from Nanoparticles Using a Fusible Bi-In-Sn Alloy as an Embedding Medium. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2019; 25:438-446. [PMID: 30714553 DOI: 10.1017/s1431927618015556] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We propose a new method for preparing atom probe tomography specimens from nanoparticles using a fusible bismuth-indium-tin alloy as an embedding medium. Iron nanoparticles synthesized by the sodium borohydride reduction method were chosen as a model system. The as-synthesized iron nanoparticles were embedded within the fusible alloy using focused ion beam milling and ion-milled to needle-shaped atom probe specimens under cryogenic conditions. An atom probe analysis revealed boron atoms in a detected iron nanoparticle, indicating that boron from the sodium borohydride reductant was incorporated into the nanoparticle during its synthesis.
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Affiliation(s)
- Se-Ho Kim
- Department of Materials Science and Engineering,Korea Advanced Institute of Science and Technology (KAIST),291 Daehak-ro,Yuseong-gu,Daejeon 34141,Republic of Korea
| | - Ji Yeong Lee
- Advanced Analysis Center,Korea Institute of Science and Technology (KIST),Seoul 136-791,Republic of Korea
| | - Jae-Pyoung Ahn
- Advanced Analysis Center,Korea Institute of Science and Technology (KIST),Seoul 136-791,Republic of Korea
| | - Pyuck-Pa Choi
- Department of Materials Science and Engineering,Korea Advanced Institute of Science and Technology (KAIST),291 Daehak-ro,Yuseong-gu,Daejeon 34141,Republic of Korea
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Raju M, Nair RR, Debnath S, Chatterjee PB. Affinity Directed Surface Functionalization of Two Different Metal Nanoparticles by a Natural Ionophore: Probing and Removal of Hg2+ and Al3+ Ions from Aqueous Solutions. Inorg Chem 2018; 58:1674-1683. [DOI: 10.1021/acs.inorgchem.8b03241] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- M. Raju
- Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, Bhavnagar, Gujarat, India
- Academy of Scientific and Innovative Research, CSIR-CSMCRI, Bhavnagar, Gujarat, India
| | - Ratish R. Nair
- Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, Bhavnagar, Gujarat, India
- Academy of Scientific and Innovative Research, CSIR-CSMCRI, Bhavnagar, Gujarat, India
| | - Snehasish Debnath
- Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, Bhavnagar, Gujarat, India
- Academy of Scientific and Innovative Research, CSIR-CSMCRI, Bhavnagar, Gujarat, India
| | - Pabitra B. Chatterjee
- Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, Bhavnagar, Gujarat, India
- Academy of Scientific and Innovative Research, CSIR-CSMCRI, Bhavnagar, Gujarat, India
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Kim SH, Kang PW, Park OO, Seol JB, Ahn JP, Lee JY, Choi PP. A new method for mapping the three-dimensional atomic distribution within nanoparticles by atom probe tomography (APT). Ultramicroscopy 2018; 190:30-38. [DOI: 10.1016/j.ultramic.2018.04.005] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 03/27/2018] [Accepted: 04/12/2018] [Indexed: 11/29/2022]
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10
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Devaraj A, Vijayakumar M, Bao J, Guo MF, Derewinski MA, Xu Z, Gray MJ, Prodinger S, Ramasamy KK. Discerning the Location and Nature of Coke Deposition from Surface to Bulk of Spent Zeolite Catalysts. Sci Rep 2016; 6:37586. [PMID: 27876869 PMCID: PMC5120296 DOI: 10.1038/srep37586] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 10/25/2016] [Indexed: 12/02/2022] Open
Abstract
The formation of carbonaceous deposits (coke) in zeolite pores during catalysis leads to temporary deactivation of catalyst, necessitating regeneration steps, affecting throughput, and resulting in partial permanent loss of catalytic efficiency. Yet, even to date, the coke molecule distribution is quite challenging to study with high spatial resolution from surface to bulk of the catalyst particles at a single particle level. To address this challenge we investigated the coke molecules in HZSM-5 catalyst after ethanol conversion treatment by a combination of C K-edge X-ray absorption spectroscopy (XAS), 13C Cross polarization-magic angle spinning nuclear magnetic resonance (CP-MAS NMR) spectroscopy, and atom probe tomography (APT). XAS and NMR highlighted the aromatic character of coke molecules. APT permitted the imaging of the spatial distribution of hydrocarbon molecules located within the pores of spent HZSM-5 catalyst from surface to bulk at a single particle level. 27Al NMR results and APT results indicated association of coke molecules with Al enriched regions within the spent HZSM-5 catalyst particles. The experimental results were additionally validated by a level-set–based APT field evaporation model. These results provide a new approach to investigate catalytic deactivation due to hydrocarbon coking or poisoning of zeolites at an unprecedented spatial resolution.
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Affiliation(s)
- Arun Devaraj
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, USA
| | - Murugesan Vijayakumar
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Jie Bao
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Mond F Guo
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Miroslaw A Derewinski
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, USA
| | - Zhijie Xu
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, USA
| | - Michel J Gray
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
| | - Sebastian Prodinger
- Physical and Computational Sciences Directorate, Pacific Northwest National Laboratory Richland, Washington 99354, USA
| | - Karthikeyan K Ramasamy
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA
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11
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Devaraj A, Gu M, Colby R, Yan P, Wang CM, Zheng JM, Xiao J, Genc A, Zhang JG, Belharouak I, Wang D, Amine K, Thevuthasan S. Visualizing nanoscale 3D compositional fluctuation of lithium in advanced lithium-ion battery cathodes. Nat Commun 2015; 6:8014. [PMID: 26272722 PMCID: PMC4557343 DOI: 10.1038/ncomms9014] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2014] [Accepted: 07/08/2015] [Indexed: 11/25/2022] Open
Abstract
The distribution of cations in Li-ion battery cathodes as a function of cycling is a pivotal characteristic of battery performance. The transition metal cation distribution has been shown to affect cathode performance; however, Li is notoriously challenging to characterize with typical imaging techniques. Here laser-assisted atom probe tomography (APT) is used to map the three-dimensional distribution of Li at a sub-nanometre spatial resolution and correlate it with the distribution of the transition metal cations (M) and the oxygen. As-fabricated layered Li1.2Ni0.2Mn0.6O2 is shown to have Li-rich Li2MO3 phase regions and Li-depleted Li(Ni0.5Mn0.5)O2 regions. Cycled material has an overall loss of Li in addition to Ni-, Mn- and Li-rich regions. Spinel LiNi0.5Mn1.5O4 is shown to have a uniform distribution of all cations. APT results were compared to energy dispersive spectroscopy mapping with a scanning transmission electron microscope to confirm the transition metal cation distribution. It is challenging to quantitatively diagnose the lithium-ion distribution in batteries. Here, the authors use laser-assisted atom probe tomography to probe the nanoscale compositional fluctuations of lithium ions in two popular lithium-ion battery cathodes before and after electrochemical cycling.
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Affiliation(s)
- A Devaraj
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - M Gu
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - R Colby
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - P Yan
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - C M Wang
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - J M Zheng
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - J Xiao
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - A Genc
- FEI Company, 5350 NE Dawson Creek Dr., Hillsboro, Oregon 97124, USA
| | - J G Zhang
- Energy and Environmental Directorate, Pacific Northwest National Laboratory, Richland, Washington 99354, USA
| | - I Belharouak
- Qatar Environment and Energy Research Institute, Qatar Foundation, PO box 5825, Doha, Qatar
| | - D Wang
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - K Amine
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Thevuthasan
- Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, USA.,Qatar Environment and Energy Research Institute, Qatar Foundation, PO box 5825, Doha, Qatar
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12
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Souza ACO, Nascimento AL, de Vasconcelos NM, Jerônimo MS, Siqueira IM, R-Santos L, Cintra DOS, Fuscaldi LL, Pires Júnior OR, Titze-de-Almeida R, Borin MF, Báo SN, Martins OP, Cardoso VN, Fernandes SO, Mortari MR, Tedesco AC, Amaral AC, Felipe MSS, Bocca AL. Activity and in vivo tracking of Amphotericin B loaded PLGA nanoparticles. Eur J Med Chem 2015; 95:267-76. [PMID: 25827397 DOI: 10.1016/j.ejmech.2015.03.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 03/11/2015] [Accepted: 03/12/2015] [Indexed: 10/23/2022]
Abstract
The development of biocompatible polymeric nanoparticles has become an important strategy for optimizing the therapeutic efficacy of many classical drugs, as it may expand their activities, reduce their toxicity, increase their bioactivity and improve biodistribution. In this study, nanoparticles of Amphotericin B entrapped within poly (lactic-co-glycolic) acid and incorporated with dimercaptosuccinic acid (NANO-D-AMB) as a target molecule were evaluated for their physic-chemical characteristics, pharmacokinetics, biocompatibility and antifungal activity. We found high plasma concentrations of Amphotericin B upon treatment with NANO-D-AMB and a high uptake of nanoparticles in the lungs, liver and spleen. NANO-D-AMB exhibited antifungal efficacy against Paracoccidioides brasiliensis and induced much lower cytotoxicity levels compared to D-AMB formulation in vivo and in vitro. Together, these results confirm that NANO-D-AMB improves Amphotericin B delivery and suggest this delivery system as a potential alternative to the use of Amphotericin B sodium deoxycholate.
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Affiliation(s)
- A C O Souza
- Biology Institute, University of Brasília, DF, Brazil
| | | | | | - M S Jerônimo
- Biology Institute, University of Brasília, DF, Brazil
| | - I M Siqueira
- Biology Institute, University of Brasília, DF, Brazil
| | - L R-Santos
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, DF, Brazil
| | - D O S Cintra
- Biology Institute, University of Brasília, DF, Brazil
| | - L L Fuscaldi
- Biotechnology Department, Health Sciences Faculty, University of Brasília, DF, Brazil
| | | | - R Titze-de-Almeida
- Faculty of Agronomy and Veterinary Medicine, University of Brasília, DF, Brazil
| | - M F Borin
- Biotechnology Department, Health Sciences Faculty, University of Brasília, DF, Brazil
| | - S N Báo
- Biology Institute, University of Brasília, DF, Brazil
| | - O P Martins
- Chemistry Department of FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - V N Cardoso
- Pharmacy Department, Federal University of Minas Gerais, MG, Brazil
| | - S O Fernandes
- Pharmacy Department, Federal University of Minas Gerais, MG, Brazil
| | - M R Mortari
- Biology Institute, University of Brasília, DF, Brazil
| | - A C Tedesco
- Chemistry Department of FFCLRP, University of São Paulo, Ribeirão Preto, SP, Brazil
| | - A C Amaral
- Biotechnology, Institute of Tropical Pathology and Public Health, Federal University of Goiás, GO, Brazil.
| | - M S S Felipe
- Biology Institute, University of Brasília, DF, Brazil; Genomic Science and Biotechnology Post-Graduate Program, Catholic University of Brasília, DF, Brazil
| | - A L Bocca
- Biology Institute, University of Brasília, DF, Brazil
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