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Mohn F, Scheffler K, Ackers J, Weimer A, Wegner F, Thieben F, Ahlborg M, Vogel P, Graeser M, Knopp T. Characterization of the clinically approved MRI tracer resotran for magnetic particle imaging in a comparison study. Phys Med Biol 2024; 69:135014. [PMID: 38870999 DOI: 10.1088/1361-6560/ad5828] [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] [Received: 02/09/2024] [Accepted: 06/13/2024] [Indexed: 06/15/2024]
Abstract
Objective.The availability of magnetic nanoparticles (MNPs) with medical approval for human intervention is fundamental to the clinical translation of magnetic particle imaging (MPI). In this work, we thoroughly evaluate and compare the magnetic properties of an magnetic resonance imaging (MRI) approved tracer to validate its performance for MPI in future human trials.Approach.We analyze whether the recently approved MRI tracer Resotran is suitable for MPI. In addition, we compare Resotran with the previously approved and extensively studied tracer Resovist, with Ferrotran, which is currently in a clinical phase III study, and with the tailored MPI tracer Perimag.Main results.Initial magnetic particle spectroscopy (MPS) measurements indicate that Resotran exhibits performance characteristics akin to Resovist, but below Perimag. We provide data on four different tracers using dynamic light scattering, transmission electron microscopy, vibrating sample magnetometry measurements, MPS to derive hysteresis, point spread functions, and a serial dilution, as well as system matrix based MPI measurements on a preclinical scanner (Bruker 25/20 FF), including reconstructed images.Significance.Numerous approved MNPs used as tracers in MRI lack the necessary magnetic properties essential for robust signal generation in MPI. The process of obtaining medical approval for dedicated MPI tracers optimized for signal performance is an arduous and costly endeavor, often only justifiable for companies with a well-defined clinical business case. Resotran is an approved tracer that has become available in Europe for MRI. In this work, we study the eligibility of Resotran for MPI in an effort to pave the way for human MPI trials.
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Affiliation(s)
- Fabian Mohn
- Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany
- Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Konrad Scheffler
- Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany
- Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Justin Ackers
- Fraunhofer IMTE, Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering, Lübeck, Germany
| | - Agnes Weimer
- Fraunhofer IMTE, Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering, Lübeck, Germany
- Institute of Physical Chemistry, University of Hamburg, Hamburg, Germany
| | - Franz Wegner
- Institute for Interventional Radiology, University of Lübeck, Lübeck, Germany
| | - Florian Thieben
- Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany
- Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Mandy Ahlborg
- Fraunhofer IMTE, Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering, Lübeck, Germany
| | - Patrick Vogel
- Department of Experimental Physics 5 (Biophysics), University of Würzburg, Würzburg, Germany
| | - Matthias Graeser
- Fraunhofer IMTE, Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering, Lübeck, Germany
- Institute of Medical Engineering, University of Lübeck, Lübeck, Germany
| | - Tobias Knopp
- Institute for Biomedical Imaging, Hamburg University of Technology, Hamburg, Germany
- Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Fraunhofer IMTE, Fraunhofer Research Institution for Individualized and Cell-based Medical Engineering, Lübeck, Germany
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Ali DA, Abdelwahab WA, Roushdy MH. Optimum phosphate ion removal from aqueous solutions using roller kiln industrial solid waste. Sci Rep 2024; 14:4027. [PMID: 38369548 PMCID: PMC10874927 DOI: 10.1038/s41598-024-53962-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Accepted: 02/07/2024] [Indexed: 02/20/2024] Open
Abstract
Water scarcity is the most imperative predicament that concerns the population. In this research, a roller kiln (RK) industrial solid waste was used in the adsorption of phosphate ions from aqueous solutions thus converting a waste to wealth through aiding in serving as a water treatment application. The RK waste was produced from an Egyptian factory with a flow rate of million tons/day. Surface characterization for this solid waste was performed including transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray fluorescence (XRF), Fourier transform infra-red (FTIR), zeta potential (ZP), and particle size distribution (PSD). Based on the kinetics and isotherm studies, the pseudo first order (PFO) kinetic model and Freundlich isotherm model were the best-fitted models with the experimental data as well as the Dubinin-Radushkevich isotherm model indicated that the adsorption type was physical. The attained experimental results were then optimized to attain the experimental conditions at which the optimum adsorption percentage was achieved using response surface methodology (RSM). The optimum percentage removal of phosphate ions 99.5 (%) was achieved at the following experimental conditions; pH 8, temperature = 25 °C, contact time = 9 min, initial phosphate ion concentration = 10 mg/L and adsorbent dose 0.5 = g/L.
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Affiliation(s)
- Dalia A Ali
- Department of Chemical Engineering, The British University in Egypt, El-Sherouk City, 11837, Egypt.
| | - Walaa A Abdelwahab
- Department of Chemical Engineering, The British University in Egypt, El-Sherouk City, 11837, Egypt
| | - Mai H Roushdy
- Department of Chemical Engineering, The British University in Egypt, El-Sherouk City, 11837, Egypt
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Liu Y, Liu X, Su A, Gong C, Chen S, Xia L, Zhang C, Tao X, Li Y, Li Y, Sun T, Bu M, Shao W, Zhao J, Li X, Peng Y, Guo P, Han Y, Zhu Y. Revolutionizing the structural design and determination of covalent-organic frameworks: principles, methods, and techniques. Chem Soc Rev 2024; 53:502-544. [PMID: 38099340 DOI: 10.1039/d3cs00287j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
Covalent organic frameworks (COFs) represent an important class of crystalline porous materials with designable structures and functions. The interconnected organic monomers, featuring pre-designed symmetries and connectivities, dictate the structures of COFs, endowing them with high thermal and chemical stability, large surface area, and tunable micropores. Furthermore, by utilizing pre-functionalization or post-synthetic functionalization strategies, COFs can acquire multifunctionalities, leading to their versatile applications in gas separation/storage, catalysis, and optoelectronic devices. Our review provides a comprehensive account of the latest advancements in the principles, methods, and techniques for structural design and determination of COFs. These cutting-edge approaches enable the rational design and precise elucidation of COF structures, addressing fundamental physicochemical challenges associated with host-guest interactions, topological transformations, network interpenetration, and defect-mediated catalysis.
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Affiliation(s)
- Yikuan Liu
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Xiaona Liu
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
| | - An Su
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Chengtao Gong
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Shenwei Chen
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Liwei Xia
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Chengwei Zhang
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Xiaohuan Tao
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Yue Li
- Institute of Intelligent Computing, Zhejiang Lab, Hangzhou 311121, China
| | - Yonghe Li
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Tulai Sun
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Mengru Bu
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Wei Shao
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Jia Zhao
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Xiaonian Li
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Yongwu Peng
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
| | - Peng Guo
- National Engineering Research Center of Lower-Carbon Catalysis Technology, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China.
- University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Yu Han
- School of Emergent Soft Matter, South China University of Technology, Guangzhou, China.
- King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia.
| | - Yihan Zhu
- Center for Electron Microscopy, Institute for Frontier and Interdisciplinary Sciences, State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Materials Science and Engineering and College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, Zhejiang, China.
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Greenberg MW, Lin CH, Chodankar S, Ghose SK. In situ synchrotron X-ray total scattering measurements and analysis of colloidal CsPbX 3 nanocrystals during flow synthesis. JOURNAL OF SYNCHROTRON RADIATION 2023; 30:1092-1099. [PMID: 37738031 PMCID: PMC10624037 DOI: 10.1107/s1600577523007300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 08/20/2023] [Indexed: 09/23/2023]
Abstract
In situ X-ray scattering measurements of CsPbX3 (X = Cl, Br, I) nanocrystal formation and halide exchange at NSLS-II beamlines were performed in an automated flow reactor. Total scattering measurements were performed at the 28-ID-2 (XPD) beamline and small-angle X-ray scattering at the 16-ID (LiX) beamline. Nanocrystal structural parameters of interest, including size, size distribution and atomic structure, were extracted from modeling the total scattering data. The results highlight the potential of these beamlines and the measurement protocols described in this study for studying dynamic processes of colloidal nanocrystal synthesis in solution with timescales on the order of seconds.
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Affiliation(s)
- Matthew W. Greenberg
- Department of Chemistry and Biochemistry, Bard College, 30 Campus Road, Annandale-on-Hudson, NY 12504, USA
| | - Cheng-Hung Lin
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Shirish Chodankar
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Sanjit K. Ghose
- National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, NY 11973, USA
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Nguyen HA, Dixon G, Dou FY, Gallagher S, Gibbs S, Ladd DM, Marino E, Ondry JC, Shanahan JP, Vasileiadou ES, Barlow S, Gamelin DR, Ginger DS, Jonas DM, Kanatzidis MG, Marder SR, Morton D, Murray CB, Owen JS, Talapin DV, Toney MF, Cossairt BM. Design Rules for Obtaining Narrow Luminescence from Semiconductors Made in Solution. Chem Rev 2023. [PMID: 37311205 DOI: 10.1021/acs.chemrev.3c00097] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Solution-processed semiconductors are in demand for present and next-generation optoelectronic technologies ranging from displays to quantum light sources because of their scalability and ease of integration into devices with diverse form factors. One of the central requirements for semiconductors used in these applications is a narrow photoluminescence (PL) line width. Narrow emission line widths are needed to ensure both color and single-photon purity, raising the question of what design rules are needed to obtain narrow emission from semiconductors made in solution. In this review, we first examine the requirements for colloidal emitters for a variety of applications including light-emitting diodes, photodetectors, lasers, and quantum information science. Next, we will delve into the sources of spectral broadening, including "homogeneous" broadening from dynamical broadening mechanisms in single-particle spectra, heterogeneous broadening from static structural differences in ensemble spectra, and spectral diffusion. Then, we compare the current state of the art in terms of emission line width for a variety of colloidal materials including II-VI quantum dots (QDs) and nanoplatelets, III-V QDs, alloyed QDs, metal-halide perovskites including nanocrystals and 2D structures, doped nanocrystals, and, finally, as a point of comparison, organic molecules. We end with some conclusions and connections, including an outline of promising paths forward.
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Affiliation(s)
- Hao A Nguyen
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Grant Dixon
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Florence Y Dou
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Shaun Gallagher
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Stephen Gibbs
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - Dylan M Ladd
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Emanuele Marino
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Via Archirafi 36, 90123 Palermo, Italy
| | - Justin C Ondry
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - James P Shanahan
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Eugenia S Vasileiadou
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Stephen Barlow
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel R Gamelin
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David S Ginger
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
| | - David M Jonas
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Seth R Marder
- Department of Chemistry, University of Colorado Boulder, Boulder, Colorado 80309, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Daniel Morton
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Christopher B Murray
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Jonathan S Owen
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Dmitri V Talapin
- Department of Chemistry, James Franck Institute, and Pritzker School of Molecular Engineering, University of Chicago, Chicago, Illinois 60637, United States
| | - Michael F Toney
- Department of Materials Science and Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Renewable and Sustainable Energy Institute, University of Colorado Boulder, Boulder, Colorado 80303, United States
- Department of Chemical and Biological Engineering, University of Colorado Boulder, Boulder, Colorado 80303, United States
| | - Brandi M Cossairt
- Department of Chemistry, University of Washington, Seattle, Washington 98195-1700, United States
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Kumar A, Nayak D, Sahoo P, Nandi BK, Saxena VK, Thangavel R. Fabrication of porous and visible light active ZnO nanorods and ZnO@TiO 2 core-shell photocatalysts for self-cleaning applications. Phys Chem Chem Phys 2023. [PMID: 37305981 DOI: 10.1039/d3cp01996a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Highly transparent and self-cleaning ZnO nanorods (NRs) and ZnO@TiO2 core-shell (CS) nanoarrays were fabricated using the sol-gel dip-coating technique. TiO2 nanoparticles (NPs) were coated as a shell layer over the hydrothermally grown ZnO NRs. The number of shell layers on the ZnO NRs was varied by modulating the number of dipping cycles from 1 to 3 to optimize their transmittance. The optimized CS nanoarrays with two dipping cycles display a 2% enhancement of optical transmission compared to the ZnO NRs. In addition, superhydrophilicity (contact angle ∼of 12°) stimulates the self-cleaning nature of the thin films. A water contact angle of 12° was noted for the ZnO@TiO2: 2 cycle sample, indicating their superhydrophilic nature. Moreover, the photocatalytic activity of the pristine ZnO NRs and ZnO@TiO2 CS nanoarrays was tested under UV and direct sunlight through the dye degradation of methylene blue (MB). Based upon the TiO2 morphology and accessibility of the ZnO@TiO2 heterojunction interface, CS nanoarrays with two shell layers exhibit the highest degree of dye photodegradation efficiency of 68.72% and 91% under sunlight and UV light irradiation, respectively. The CS nanoarrays demonstrate medium sunlight and excellent UV-light-driven photocatalytic activity. Our findings suggest that the ZnO@TiO2 CS nanoarrays are potential photocatalysts for dye degradation and self-cleaning applications in solar cell coverings.
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Affiliation(s)
- Ajay Kumar
- Department of Fuel, Minerals and Metallurgical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India
| | - Dipali Nayak
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India.
| | - Pooja Sahoo
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India.
| | - Barun Kumar Nandi
- Department of Fuel, Minerals and Metallurgical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India
| | - V K Saxena
- Department of Fuel, Minerals and Metallurgical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India
| | - R Thangavel
- Department of Physics, Indian Institute of Technology (Indian School of Mines) Dhanbad, 826004, Jharkhand, India.
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Yahia S, Khalil IA, El-Sherbiny IM. Dual antituberculosis drugs-loaded gelatin hydrogel bioimplant for treating spinal tuberculosis. Int J Pharm 2023; 633:122609. [PMID: 36642351 DOI: 10.1016/j.ijpharm.2023.122609] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 01/06/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
Spinal tuberculosis (TB) represents around 1% of the recorded TB with a high mortality rate due to neurological complications and kyphosis. The current work aimed to develop a bioimplant scaffold to treat spinal TB disease. The scaffold is composed of a biocompatible semi-interpenetrating (semi-IPN) gelatin-based hydrogel incorporating mesoporous silica nanoparticles (MPS-NPs) loaded with rifampicin (RIF) and levofloxacin (LEV) to treat TB. The elastic modulus of the hydrogel was 7.18 ± 0.78 MPa. Minimum inhibitory concentrations (MIC) value against Mycobacterium bovis for LEV-loaded and RIF-loaded MPS-NPs were 6.50 and 1.33 µm/ml, respectively.Sequential release of drugs was observed after 15 days. Loading of the MPS-NPs in the hydrogel matrix governed the amount of released drugs by prolonging the period of release up to 60 days. WST-1 test confirmed the biocompatibility and safety of the developed vertebral hydrogel bioimplant. Histological and immunohistochemistry micrographs showed the progress in healing process with the bioimplant. Besides, loading of LEV and RIF in the implants declined the presence of the giant macrophages clusters as compared to control groups. All the obtained results support the potential use of the developed vertebral hydrogel bioimplant as a scaffold with good mechanical and biocompatible properties along with a good ability to eradicate the TB pathogen.
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Affiliation(s)
- Sarah Yahia
- Nanomedicine Research Labs, Center for Materials Sciences, Zewail City of Science and Technology, 6th of October City, 12578 Giza, Egypt
| | - Islam A Khalil
- Department of Pharmaceutics, College of Pharmacy and Drug Manufacturing, Misr University of Science and Technology (MUST), 6th of October, Giza 12582, Egypt
| | - Ibrahim M El-Sherbiny
- Nanomedicine Research Labs, Center for Materials Sciences, Zewail City of Science and Technology, 6th of October City, 12578 Giza, Egypt.
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Soundaram Jeevarathinam A, Saleem W, Martin N, Hu C, McShane MJ. NIR Luminescent Oxygen-Sensing Nanoparticles for Continuous Glucose and Lactate Monitoring. BIOSENSORS 2023; 13:bios13010141. [PMID: 36671976 PMCID: PMC9855917 DOI: 10.3390/bios13010141] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 05/09/2023]
Abstract
A highly sensitive, biocompatible, and scalable phosphorescent oxygen sensor formulation is designed and evaluated for use in continuous metabolite sensors for biological systems. Ethyl cellulose (EC) and polystyrene (PS) nanoparticles (NPs) stabilized with Pluronic F68 (PF 68), Polydimethylsiloxane-b-polyethyleneglycol methyl ether (PDMS-PEG), sodium dodecylsulfate (SDS), and cetyltimethylammonium bromide (CTAB) were prepared and studied. The resulting NPs with eight different surfactant−polymer matrix combinations were evaluated for physical properties, oxygen sensitivity, effect of changes in dispersion matrix, and cytotoxicity. The EC NPs exhibited a narrower size distribution and 40% higher sensitivity than PS, with Stern−Volmer constants (Ksv) 0.041−0.052 µM−1 for EC, compared to 0.029−0.034 µM−1 for PS. Notably, ethyl cellulose NPs protected with PF68 were selected as the preferred formulation, as they were not cytotoxic towards 3T3 fibroblasts and exhibited a wide phosphorescence lifetime response of >211.1 µs over 258−0 µM and ~100 µs over 2.58−0 µM oxygen, with a limit of detection (LoD) of oxygen in aqueous phase of 0.0016 µM. The EC-PF68 NPs were then efficiently encapsulated in alginate microparticles along with glucose oxidase (GOx) and catalase (CAT) to form phosphorescent nanoparticles-in-microparticle (NIMs) glucose sensing microdomains. The fabricated glucose sensors showed a sensitivity of 0.40 µs dL mg−1 with a dynamic phosphorescence lifetime range of 46.6−197.1 µs over 0−150 mg dL−1 glucose, with a glucose LoD of 18.3 mg dL−1 and maximum distinguishable concentration of 111.1 mg dL−1. Similarly, lactate sensors were prepared with NIMs microdomains containing lactate oxidase (LOx) and found to have a detection range of 0−14 mg dL−1 with LoD of 1.8 mg dL−1 and maximum concentration of 13.7 mg dL−1 with lactate sensitivity of 10.7 µs dL mg−1. Owing to its versatility, the proposed NIMs-based design can be extended to a wide range of metabolites and different oxygen-sensing dyes with different excitation wavelengths based on specific application.
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Affiliation(s)
| | - Waqas Saleem
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Nya Martin
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Connie Hu
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Michael J. McShane
- Department of Biomedical Engineering, Texas A&M University, College Station, TX 77843, USA
- Materials Science and Engineering, Texas A&M University, College Station, TX 77845, USA
- Correspondence: (M.J.M.)
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9
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Das G, Seo S, Yang IJ, Nguyen LTH, Shin HS, Patra JK. Synthesis of Biogenic Gold Nanoparticles by Using Sericin Protein from Bombyx mori Silk Cocoon and Investigation of Its Wound Healing, Antioxidant, and Antibacterial Potentials. Int J Nanomedicine 2023; 18:17-34. [PMID: 36628114 PMCID: PMC9826641 DOI: 10.2147/ijn.s378806] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 10/03/2022] [Indexed: 01/05/2023] Open
Abstract
Introduction A number of biological wastes and factory waste materials have been tested recently for the eco-friendly biosynthesis of nanoparticles. Sericin protein (SSP) is usually removed from the silk cocoon during the degumming process in the process of making the silk, and this sericin protein is normally thrown away by the sericulture industries as waste materials. It is found that this sericin protein possesses a number of biological properties. Methods Considering this, in the present study, an effort has been made to biosynthesize gold nanoparticles (SSP-AuNPs) using the waste sericin solution as the reducing and capping agent and investigate its biopotential in terms of its wound healing, antioxidant and antibacterial activities. Results The synthesis of SSP-AuNPs was perceived by the visual color change and confirmed by UV-Vis spectroscopy with absorption maxima at 522 nm. Further characterization of SSP-AuNPs was done by TEM, EDS, XRD, FTIR, DLS, zeta potential, TGA, AFM, etc. The size of SSP-AuNPs was found out to be 54.82 nm as per the particle size analyzer and the zeta potential is -19.8 mV. The SSP-AuNPs displayed promising wound healing potential of 70.96 and 69.76% wound closure rate at 5 and 10 µg/mL respectively as compared to 74.91% by the Centella asiatica taken as a positive control. It also exhibited promising antioxidant potential in terms of the DPPH, ABTS free radical scavenging, reducing power potential, and total antioxidant capacity. Besides, the SSP-AuNPs also displayed significant antibacterial activities against the tested pathogenic bacterial with the diameter of inhibition zones ranging between 12.10 and 14.96 mm as compared to the positive control cephalexin that displayed inhibition zones ranging between 12.08 and 13.24 mm. Discussion Taken together, SSP-AuNPs could serve as an interesting candidate for food, cosmetics, and biomedical fields in the applications of wound healing, cosmetics, antibacterial bandages, and ointments, etc.
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Affiliation(s)
- Gitishree Das
- Research Institute of Integrative Life Sciences, Dongguk University-Seoul, Goyangsi, Republic of Korea
| | - Sujin Seo
- Department of Food Science & Biotechnology, Dongguk University-Seoul, Goyangsi, Republic of Korea
| | - In-Jun Yang
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju, Republic of Korea
| | - Ly Thi Huong Nguyen
- Department of Physiology, College of Korean Medicine, Dongguk University, Gyeongju, Republic of Korea
| | - Han-Seung Shin
- Department of Food Science & Biotechnology, Dongguk University-Seoul, Goyangsi, Republic of Korea
| | - Jayanta Kumar Patra
- Research Institute of Integrative Life Sciences, Dongguk University-Seoul, Goyangsi, Republic of Korea,Correspondence: Jayanta Kumar Patra, Research Institute of Integrative Life Sciences, Dongguk University-Seoul, Goyangsi, 10326, Republic of Korea, Tel +82-31-961-5625, Email
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10
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Burton K, Nic Daeid N, Adegoke O. Surface plasmon-enhanced aptamer-based fluorescence detection of cocaine using hybrid nanostructure of cadmium-free ZnSe/In2S3 core/shell quantum dots and gold nanoparticles. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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11
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Williamson EM, Ghrist AM, Karadaghi LR, Smock SR, Barim G, Brutchey RL. Creating ground truth for nanocrystal morphology: a fully automated pipeline for unbiased transmission electron microscopy analysis. NANOSCALE 2022; 14:15327-15339. [PMID: 36214256 DOI: 10.1039/d2nr04292d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Control over colloidal nanocrystal morphology (size, size distribution, and shape) is important for tailoring the functionality of individual nanocrystals and their ensemble behavior. Despite this, traditional methods to quantify nanocrystal morphology are laborious. New developments in automated morphology classification will accelerate these analyses but the assessment of machine learning models is limited by human accuracy for ground truth, causing even unsupervised machine learning models to have inherent bias. Herein, we introduce synthetic image rendering to solve the ground truth problem of nanocrystal morphology classification. By simulating 2D images of nanocrystal shapes via a function of high-dimensional parameter space, we trained a convolutional neural network to link unique morphologies to their simulated parameters, defining nanocrystal morphology quantitatively rather than qualitatively. An automated pipeline then processes, quantitatively defines, and classifies nanocrystal morphology from experimental transmission electron microscopy (TEM) images. Using improved computer vision techniques, 42 650 nanocrystals were identified, assessed, and labeled with quantitative parameters, offering a 600-fold improvement in efficiency over best-practice manual measurements. A classification algorithm was trained with a prediction accuracy of 99.5%, which can successfully analyze a range of concave, convex, and irregular nanocrystal shapes. The resulting pipeline was applied to differentiating two syntheses of nominally cuboidal CsPbBr3 nanocrystals and uniquely classifying binary nickel sulfide nanocrystal phase based on morphology. This pipeline provides a simple, efficient, and unbiased method to quantify nanocrystal morphology and represents a practical route to construct large datasets with an absolute ground truth for training unbiased morphology-based machine learning algorithms.
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Affiliation(s)
- Emily M Williamson
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Aaron M Ghrist
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Lanja R Karadaghi
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Sara R Smock
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Gözde Barim
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
| | - Richard L Brutchey
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA.
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12
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Green synthesis of silver nanoparticles using medicinal plants: Characterization and application. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2022. [DOI: 10.1016/j.jrras.2022.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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13
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Rani N, Singla RK, Redhu R, Narwal S, Sonia, Bhatt A. A Review on Green Synthesis of Silver Nanoparticles and its Role Against Cancer. Curr Top Med Chem 2022; 22:1460-1471. [PMID: 35652404 DOI: 10.2174/1568026622666220601165005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 04/13/2022] [Accepted: 04/13/2022] [Indexed: 02/08/2023]
Abstract
Cancer is a fatal disease, with a collection of related diseases in various body parts. The conventional therapies cannot show the desired results of treatment due to their imprecise targeting, deprived drug delivery, and side effects. Therefore, it is required to make the drug engineered in such a way that it can target only cancerous cells and can inhibit its growth and proliferation. Nanotechnology is a technology that can target and differentiate between cancerous cells and the normal cells of the body. Silver itself is a good anticancer and antibacterial agent and employing it with phytochemicals having anticancer properties, and nanotechnology can give the best approach for the treatment. The synthesis of silver nanoparticles using plant extracts is an economical, energy-efficient, low-cost approach and it doesn't need any hazardous chemicals. In the present review, we discussed different methods of synthesis of silver nanoparticles using herbal extracts and their role against cancer therapy along with the synergistic role of silver and plant extracts against cancer in the formulation.
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Affiliation(s)
- Neeraj Rani
- Department of Pharmaceutical Sciences, Chaudhary Bansi Lal University, Bhiwani (HR), India
| | - Rajeev K Singla
- Institutes for Systems Genetics, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, China.,iGlobal Research and Publishing Foundation, New Delhi, India
| | - Rakesh Redhu
- Vaish Institute of Pharmaceutical Education and Research, Rohtak (HR), India
| | - Sonia Narwal
- Faculty of Pharmaceutical Sciences, PDM University, Bahadurgarh (HR), India
| | - Sonia
- Department of Pharmaceutical Sciences, Chaudhary Bansi Lal University, Bhiwani (HR), India
| | - Alok Bhatt
- School of Pharmaceutical Sciences Himgiri Zee University, Dehradun, India
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14
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Fabrication of Ethosomes Containing Tocopherol Acetate to Enhance Transdermal Permeation: In Vitro and Ex Vivo Characterizations. Gels 2022; 8:gels8060335. [PMID: 35735679 PMCID: PMC9222905 DOI: 10.3390/gels8060335] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/21/2022] [Accepted: 05/25/2022] [Indexed: 01/04/2023] Open
Abstract
Background: Tocopherol acetate (TA) is known as a skin moisturizing and photoprotective agent. One major drawback with tocopherol and its derivatives remains its limited stability. Aim: To develop highly stable TA-containing ethosomal gel (TAEG) as an advanced dosage form. Methods: A cold method technique was used to produce the ethosomes. An in vitro evaluation of viscosity, conductivity, and pH stability was carried out for three months. An in vitro physical characterization of the nanoparticles (NPs) that included particle size (PS), zeta potential (ZP), transmission electron microscopy (TEM), and Fourier-transform infrared (FTIR) spectroscopy analysis was then performed. Organoleptic evaluation, thermostability at 8 °C, 25 °C, 40 °C and 40 °C ± 75% RH, pH, conductivity, viscosity, and spreadability measurements were also performed in vitro for three months. An ex vivo permeation study was performed in phosphate-buffered solution (1× PBS; pH 5.5 or pH 7.4) at 37 ± 0.2 °C by using rat abdominal skin and the Franz diffusion cell method. The data of three independent experiments were expressed as mean ± SD. A two-way ANOVA was applied to compare data on TAEG versus TA control gel (TACG). Results: PS of the ethosomes was in the range of 144−289 nm. A total of nine formulations were developed. Optimized TAEG formulation (TA-5) was selected based on the highest entrapment efficiency (EE) of 99.71%, while the stability, the PS, and the uniformity-based polydispersity index (PDI) were also among the best. TA-5 exhibited smooth spherical ethosomal NPs with PS of 200.6 nm, ZP value of −18.6 V, and PDI of 0.465. Stability data obtained for TA-5 in terms of rheology, conductivity, and pH presented no significant change (p > 0.05) during the entire study duration. Rheological studies indicated that TA-5 followed a non-Newtonian behavior of shear thinning system. The ex vivo drug permeation was 44.55 ± 0.01% in TA-5 and the drug retention in skin was 51.20%, which was significantly higher than TACG as observed after 24 h permeation study (p < 0.05). Conclusions: The newly developed TAEG formulation appears promising to enhance the effectivity of TA and its topical application.
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15
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Martella E, Dozza B, Ferroni C, Obeyok CO, Guerrini A, Tedesco D, Manet I, Sotgiu G, Columbaro M, Ballestri M, Martini L, Fini M, Lucarelli E, Varchi G, Duchi S. Two Beats One: Osteosarcoma Therapy with Light-Activated and Chemo-Releasing Keratin Nanoformulation in a Preclinical Mouse Model. Pharmaceutics 2022; 14:pharmaceutics14030677. [PMID: 35336051 PMCID: PMC8950553 DOI: 10.3390/pharmaceutics14030677] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/15/2022] [Accepted: 03/17/2022] [Indexed: 12/12/2022] Open
Abstract
Osteosarcoma treatment is moving towards more effective combination therapies. Nevertheless, these approaches present distinctive challenges that can complicate the clinical translation, such as increased toxicity and multi-drug resistance. Drug co-encapsulation within a nanoparticle formulation can overcome these challenges and improve the therapeutic index. We previously synthetized keratin nanoparticles functionalized with Chlorin-e6 (Ce6) and paclitaxel (PTX) to combine photo (PDT) and chemotherapy (PTX) regimens, and the inhibition of osteosarcoma cells growth in vitro was demonstrated. In the current study, we generated an orthotopic osteosarcoma murine model for the preclinical evaluation of our combination therapy. To achieve maximum reproducibility, we systematically established key parameters, such as the number of cells to generate the tumor, the nanoparticles dose, the design of the light-delivery device, the treatment schedule, and the irradiation settings. A 60% engrafting rate was obtained using 10 million OS cells inoculated intratibial, with the tumor model recapitulating the histological hallmarks of the human counterpart. By scheduling the treatment as two cycles of injections, a 32% tumor reduction was obtained with PTX mono-therapy and a 78% reduction with the combined PTX-PDT therapy. Our findings provide the in vivo proof of concept for the subsequent clinical development of a combination therapy to fight osteosarcoma.
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Affiliation(s)
- Elisa Martella
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Barbara Dozza
- Rizzoli Laboratory Unit, Department of Biomedical and Neuromotor Sciences (DIBINEM), Alma Mater Studiorum University of Bologna, 40123 Bologna, Italy;
| | - Claudia Ferroni
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Clement Osuru Obeyok
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Andrea Guerrini
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Daniele Tedesco
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Ilse Manet
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Giovanna Sotgiu
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Marta Columbaro
- Electron Microscopy Platform, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Marco Ballestri
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
| | - Lucia Martini
- Complex Structure Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (L.M.); (M.F.)
| | - Milena Fini
- Complex Structure Surgical Sciences and Technologies, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy; (L.M.); (M.F.)
| | - Enrico Lucarelli
- Regenerative Therapies in Oncology of the Osteoncology, Bone and Soft Tissue Sarcomas and Innovative Therapies Unit, IRCCS Istituto Ortopedico Rizzoli, 40136 Bologna, Italy;
| | - Greta Varchi
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
- Correspondence: (G.V.); (S.D.); Tel.: +39-051-6398283 (G.V.)
| | - Serena Duchi
- Institute for the Organic Synthesis and Photoreactivity (ISOF), National Research Council (CNR), 40129 Bologna, Italy; (E.M.); (C.F.); (C.O.O.); (A.G.); (D.T.); (I.M.); (G.S.); (M.B.)
- Department of Surgery, St. Vincent’s Hospital Melbourne, University of Melbourne, Fitzroy, VIC 3065, Australia
- Correspondence: (G.V.); (S.D.); Tel.: +39-051-6398283 (G.V.)
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16
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Saaim KM, Afridi SK, Nisar M, Islam S. In search of best automated model: Explaining nanoparticle TEM image segmentation. Ultramicroscopy 2022; 233:113437. [PMID: 34953311 DOI: 10.1016/j.ultramic.2021.113437] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 11/11/2021] [Accepted: 11/25/2021] [Indexed: 10/19/2022]
Abstract
Over the years, computer scientists are working on building models that aid the scientific community in many ways by cutting laboratory expenses or by saving time. Such models find useful applications in microscopy images as well. Determining the morphology of nanoparticles from Transmission Electron Microscopy images is a manual and cumbersome task. In the past years, scientists have tried to build models to automate the process of nanoparticle segmentation in microscopy images. This study focuses on finding the best segmentation model, which achieves high metrics and is robust to microscopy parameters. For this purpose, eight different models have been compared. The training dataset consists of 150 BF-TEM Platinum nanoparticle images containing 3629 nanoparticles of all kinds. Further, we examine the generalizability of the models on E-TEM Gold nanoparticle images. We also describe essential considerations while choosing a network for segmenting nanoparticle images that generalize well across the Platinum BF-TEM and Gold E-TEM nanoparticles dataset. The layer gradients are visualized to further explain the black-box nature of neural networks.
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Affiliation(s)
- Kunwar Muhammed Saaim
- Department of Computer Engineering, Aligarh Muslim University, Aligarh, 202002, India.
| | - Saima Khan Afridi
- Chemistry Section, Women's College, Aligarh Muslim University, Aligarh, 202002, India.
| | - Maryam Nisar
- Department of Biochemistry, Aligarh Muslim University, Aligarh, 202002, India.
| | - Saiful Islam
- Department of Computer Engineering, Aligarh Muslim University, Aligarh, 202002, India.
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17
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Brunning H, Sallach JB, Zanchi V, Price O, Boxall A. Toward a Framework for Environmental Fate and Exposure Assessment of Polymers. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2022; 41:515-540. [PMID: 34913523 DOI: 10.1002/etc.5272] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/08/2021] [Accepted: 12/11/2021] [Indexed: 06/14/2023]
Abstract
Development of risk-assessment methodologies for polymers is an emerging regulatory priority to prevent negative environmental impacts; however, the diversity and complexity of polymers require adaptation of existing environmental risk-assessment approaches. The present review discusses the challenges and opportunities for the fate and exposure assessment of polymers in the context of regulatory environmental risk assessment of chemicals. The review discusses the applicability and adequacy for polymers of existing fate parameters used for nonpolymeric compounds and proposes additional parameters that could inform the fate of polymers. The significance of these parameters in various stages of an exposure-assessment framework is highlighted, with classification of polymers as solid or dissolved being key for identification of those parameters most relevant to environmental fate. Considerations to address the key limitations and knowledge gaps are then identified and discussed, specifically the complexity of polymer identification, with the need for characterization of the most significant parameters for polymer grouping and prioritization; the complexity of polymer degradation in the environment, with the need to incorporate the fate and hazards of degradation products into risk assessment; the requirement for development and standardization of analytical methods for characterization of polymer fate properties and degradation products; and the need to develop exposure modeling approaches for polymers. Environ Toxicol Chem 2022;41:515-540. © 2021 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Hattie Brunning
- Department of Environment and Geography, University of York, York, United Kingdom
| | - J Brett Sallach
- Department of Environment and Geography, University of York, York, United Kingdom
| | | | | | - Alistair Boxall
- Department of Environment and Geography, University of York, York, United Kingdom
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18
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Hussin MH, Appaturi JN, Poh NE, Latif NHA, Brosse N, Ziegler-Devin I, Vahabi H, Syamani FA, Fatriasari W, Solihat NN, Karimah A, Iswanto AH, Sekeri SH, Ibrahim MNM. A recent advancement on preparation, characterization and application of nanolignin. Int J Biol Macromol 2022; 200:303-326. [PMID: 34999045 DOI: 10.1016/j.ijbiomac.2022.01.007] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/23/2021] [Accepted: 01/01/2022] [Indexed: 12/24/2022]
Abstract
Each year, 50 to 70 million tonnes of lignin are produced worldwide as by-products from pulp industries and biorefineries through numerous processes. Nevertheless, about 98% of lignin is directly burnt to produce steam to generate energy for the pulp mills and only a handful of isolated lignin is used as a raw material for the chemical conversion and for the preparation of various substances as well as modification of lignin into nanomaterials. Thus, thanks to its complex structure, the conversion of lignin to nanolignin, attracting growing attention and generating considerable interest in the scientific community. The objective of this review is to provide a complete understanding and knowledge of the synthesis methods and functionalization of various lignin nanoparticles (LNP). The characterization of LNP such as structural, thermal, molecular weight properties together with macromolecule and quantification assessments are also reviewed. In particular, emerging applications in different areas such as UV barriers, antimicrobials, drug administration, agriculture, anticorrosives, the environment, wood protection, enzymatic immobilization and others were highlighted. In addition, future perspectives and challenges related to the development of LNP are discussed.
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Affiliation(s)
- M Hazwan Hussin
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
| | - Jimmy Nelson Appaturi
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Ng Eng Poh
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Nur Hanis Abd Latif
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Nicolas Brosse
- Laboratoire d'Etude et de Recherche sur le MAteriau Bois (LERMAB), Faculte des Sciences et Technologies, Universite de Lorraine, Vandoeuvre-les-Nancy, France
| | - Isabelle Ziegler-Devin
- Laboratoire d'Etude et de Recherche sur le MAteriau Bois (LERMAB), Faculte des Sciences et Technologies, Universite de Lorraine, Vandoeuvre-les-Nancy, France
| | - Henri Vahabi
- Université de Lorraine, CentraleSupélec, LMOPS, F-57000, Metz, France
| | - Firda Aulya Syamani
- Research Center for Biomaterial, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Widya Fatriasari
- Research Center for Biomaterial, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Nissa Nurfajrin Solihat
- Research Center for Biomaterial, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Azizatul Karimah
- Research Center for Biomaterial, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Apri Heri Iswanto
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia; JATI-Sumatran Forestry Analysis Study Center, Jl. Tridharma Ujung No. 1, Kampus USU, Medan 20155, North Sumatera, Indonesia
| | - Siti Hajar Sekeri
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
| | - Mohamad Nasir Mohamad Ibrahim
- Materials Technology Research Group (MaTReC), School of Chemical Sciences, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia
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Deep learning detection of nanoparticles and multiple object tracking of their dynamic evolution during in situ ETEM studies. Sci Rep 2022; 12:2484. [PMID: 35169206 PMCID: PMC8847623 DOI: 10.1038/s41598-022-06308-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 01/24/2022] [Indexed: 11/08/2022] Open
Abstract
In situ transmission electron microscopy (TEM) studies of dynamic events produce large quantities of data especially under the form of images. In the important case of heterogeneous catalysis, environmental TEM (ETEM) under gas and temperature allows to follow a large population of supported nanoparticles (NPs) evolving under reactive conditions. Interpreting properly large image sequences gives precious information on the catalytic properties of the active phase by identifying causes for its deactivation. To perform a quantitative, objective and robust treatment, we propose an automatic procedure to track nanoparticles observed in Scanning ETEM (STEM in ETEM). Our approach involves deep learning and computer vision developments in multiple object tracking. At first, a registration step corrects the image displacements and misalignment inherent to the in situ acquisition. Then, a deep learning approach detects the nanoparticles on all frames of video sequences. Finally, an iterative tracking algorithm reconstructs their trajectories. This treatment allows to deduce quantitative and statistical features about their evolution or motion, such as a Brownian behavior and merging or crossing events. We treat the case of in situ calcination of palladium (oxide) / delta-alumina, where the present approach allows a discussion of operating processes such as Ostwald ripening or NP aggregative coalescence.
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20
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Heetpat N, Sumranjit J, Siripinyanond A. Use of single particle inductively coupled plasma mass spectrometry for understanding the formation of bimetallic nanoparticles. Talanta 2022; 236:122871. [PMID: 34635252 DOI: 10.1016/j.talanta.2021.122871] [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] [Received: 07/21/2021] [Revised: 08/30/2021] [Accepted: 09/09/2021] [Indexed: 11/20/2022]
Abstract
Bimetallic nanoparticles (NPs), including core-shell structure and bimetallic alloy nanoparticles, were synthesized and characterized using flow field-flow fractionation (FlFFF), single particle inductively coupled plasma mass spectrometry (SP-ICP-MS), and transmission electron microscope (TEM) with energy-dispersive x-ray spectroscopy (EDS). For the core-shell particles, a nominal 80 nm commercial core-shell AuAg bimetallic nanoparticle was used to examine the applicability of SP-ICP-MS to determine the core size of Au and shell thickness of Ag. Then, the method was applied to estimate the core size of Au and shell thickness of Ag for the laboratory synthesized particles. The results were compared with those obtained from TEM-EDS. For the alloy nanoparticles, two synthesis protocols, based on the galvanic replacement of Ag seed particles with Au, were used. One was to prepare a hollow AgAu particle by varying the volume of dissolved Au in basic solution (K-gold) to etch some parts of AgNPs to dissolved ionic silver with the formation of AuNPs covering the remaining AgNPs, producing a hole inside the core nanoparticles. Another protocol was to prepare AgAu alloy nanoparticles. SP-ICP-MS was used in combination with FlFFF to provide information on the changes of particle size with varying volume of K-gold reagent. Hydrodynamic diameter increased with increasing K-gold, as observed by FlFFF. With SP-ICP-MS without prior FlFFF, bimodal distributions were observed in the size distribution of Au and Ag. With prior FlFFF, monomodal distributions were observed by SP-ICP-MS, which allow the use of particle concentration and size to estimate the mass concentration of elements on the fractionated bimetallic nanoparticles. This study illustrates the potential use of SP-ICP-MS for gaining information about particle transformation during the synthesis of bimetallic nanoparticles.
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Affiliation(s)
- Nareerat Heetpat
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand
| | - Jitapa Sumranjit
- National Nanotechnology Center, National Science and Technology Development Agency, 111 Phahonyothin Rd., Klongluang, Pathumthani, 12120, Thailand
| | - Atitaya Siripinyanond
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Rama VI Road, Bangkok, 10400, Thailand.
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21
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Pavliuk MV, Wrede S, Liu A, Brnovic A, Wang S, Axelsson M, Tian H. Preparation, characterization, evaluation and mechanistic study of organic polymer nano-photocatalysts for solar fuel production. Chem Soc Rev 2022; 51:6909-6935. [DOI: 10.1039/d2cs00356b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review provides the guidelines and knowledge gained so far on current strategies used to prepare, optimize and investigate polymer nanoparticles for fuel production, highlighting the future directions of polymer nano-photocatalyst development.
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Affiliation(s)
- Mariia V. Pavliuk
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Sina Wrede
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Aijie Liu
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Andjela Brnovic
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Sicong Wang
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Martin Axelsson
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
| | - Haining Tian
- Department of Chemistry, Ångström Laboratory, Uppsala University, Box 523, 75120 Uppsala, Sweden
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22
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Gaafar MS, Yakout SM, Barakat YF, Sharmoukh W. Electrophoretic deposition of hydroxyapatite/chitosan nanocomposites: the effect of dispersing agents on the coating properties. RSC Adv 2022; 12:27564-27581. [PMID: 36276043 PMCID: PMC9516373 DOI: 10.1039/d2ra03622c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 09/08/2022] [Indexed: 11/23/2022] Open
Abstract
In this study, electrophoretic deposition (EPD) was used for the coating on titanium (Ti) substrate with a composite of hydroxyapatite (HA)-chitosan (CS) in the presence of dispersing agents such as polyvinyl butyral (PVB), polyethylene glycol (PEG), and triethanolamine (TEA). The materials were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), zeta potential, and Fourier transform infrared (FT-IR) spectroscopy. The addition of PVB, PEG, and TEA agents improved the development of Ti coating during the EPD process. These additives increased the suspension stability and promoted the formation of uniform and compact HA/CS nanocomposite coatings on Ti substrates. The electrochemical polarization tests (e.g., potentiodynamic test) of the substrate with and without coating were investigated. Data analysis showed high corrosion resistance of Ti substrate coated with the HA/CS NP composite. The corrosion potentials displayed a shift toward positive values indicating the increase in the corrosion resistance of Ti after coating. In addition to measuring calcium ion release at various pH values and contact times at a biological pH value of 5.5, the stabilities of Ti substrates coated with HA/CS and different dispersing agents were also evaluated. Ti substrates with high anticorrosion properties may have a new potential application in biomedicine. Electrophoretic deposition was used for coating of titanium substrate with a composite of hydroxyapatite (HA)-chitosan (CS) in the presence of polyvinyl butyral (PVB), polyethylene glycol (PEG), and triethanolamine (TEA).![]()
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Affiliation(s)
- M. S. Gaafar
- Department of Chemical Engineering, Tabbin Institute for Metallurgical Studies (TIMS), PO Box: 109 Helwan, 11421 Cairo, Egypt
| | - S. M. Yakout
- Inorganic Chemistry Department, National Research Centre, Tahrir St, Dokki, Giza 12622, Egypt
| | - Y. F. Barakat
- Department of Chemical Engineering, Tabbin Institute for Metallurgical Studies (TIMS), PO Box: 109 Helwan, 11421 Cairo, Egypt
| | - W. Sharmoukh
- Inorganic Chemistry Department, National Research Centre, Tahrir St, Dokki, Giza 12622, Egypt
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23
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Biological synthesis and characterization of gold nanoparticles using Verbascum speciosum Schrad. and cytotoxicity properties toward HepG2 cancer cell line. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04600-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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24
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Raspantini GL, Luiz MT, Abriata JP, Eloy JDO, Vaidergorn MM, Emery FDS, Marchetti JM. PCL-TPGS polymeric nanoparticles for docetaxel delivery to prostate cancer: Development, physicochemical and biological characterization. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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25
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Ramirez LMF, Rihouey C, Chaubet F, Le Cerf D, Picton L. Characterization of dextran particle size: How frit-inlet asymmetrical flow field-flow fractionation (FI-AF4) coupled online with dynamic light scattering (DLS) leads to enhanced size distribution. J Chromatogr A 2021; 1653:462404. [PMID: 34348206 DOI: 10.1016/j.chroma.2021.462404] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/06/2021] [Accepted: 07/07/2021] [Indexed: 01/18/2023]
Abstract
Accurate determinations of particle size and particle size distribution (PSD) are essential to achieve the clinical translation of medical nanoparticles (NPs). Herein, dextran-based NPs produced via a water-in-oil emulsification/crosslinking process and developed as nanomedicines were studied. NPs were first characterized using traditional batch-mode techniques as dynamic light scattering (DLS) and laser diffraction. In a second step, their analysis by frit-inlet asymmetrical flow field-flow fractionation (FI-AF4) was explored. The major parameters of the AF4 procedure, namely, crossflow, detector flow, crossflow decay programming and relaxation time were set up. The sizes of the particle fractions eluted under optimized conditions were measured using DLS as an online detector. We demonstrate that FI-AF4 is a powerful method to characterize dextran-NPs in the 200 nm -1 µm range. It provided a more realistic and comprehensive picture of PSD, revealing its heterogenous character and clearly showing the ratio of different populations in the sample, while batch-mode light scattering techniques only detected the biggest particle sizes.
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Affiliation(s)
- Laura Marcela Forero Ramirez
- Laboratory for Vascular Translational Science, UMRS1148, INSERM, Université de Paris, Paris F-75018, France; Université Sorbonne Paris Nord, Villetaneuse F-93430, France; Normandie University, UNIROUEN, National Institute of Applied Sciences of Rouen, CNRS, PBS, UMR6270, Rouen 76000, France
| | - Christophe Rihouey
- Normandie University, UNIROUEN, National Institute of Applied Sciences of Rouen, CNRS, PBS, UMR6270, Rouen 76000, France
| | - Frédéric Chaubet
- Laboratory for Vascular Translational Science, UMRS1148, INSERM, Université de Paris, Paris F-75018, France; Université Sorbonne Paris Nord, Villetaneuse F-93430, France
| | - Didier Le Cerf
- Normandie University, UNIROUEN, National Institute of Applied Sciences of Rouen, CNRS, PBS, UMR6270, Rouen 76000, France
| | - Luc Picton
- Normandie University, UNIROUEN, National Institute of Applied Sciences of Rouen, CNRS, PBS, UMR6270, Rouen 76000, France.
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26
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Supported metallic nanoparticles prepared by an organometallic route to boost the electrocatalytic conversion of CO2. J CO2 UTIL 2021. [DOI: 10.1016/j.jcou.2021.101613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Galúcio JMP, de Souza SGB, Vasconcelos AA, Lima AKO, da Costa KS, de Campos Braga H, Taube PS. Synthesis, Characterization, Applications, and Toxicity of Green Synthesized Nanoparticles. Curr Pharm Biotechnol 2021; 23:420-443. [PMID: 34355680 DOI: 10.2174/1389201022666210521102307] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 02/25/2021] [Accepted: 03/16/2021] [Indexed: 11/22/2022]
Abstract
Nanotechnology is a cutting-edge area with numerous industrial applications. Nanoparticles are structures that have dimensions ranging from 1-100 nm which exhibit significantly different mechanical, optical, electrical, and chemical properties when compared with their larger counterparts. Synthetic routes that use natural sources, such as plant extracts, honey, and microorganisms are environmentally friendly and low-cost methods that can be used to obtain nanoparticles. These methods of synthesis generate products that are more stable and less toxic than those obtained using conventional methods. Nanoparticles formed by titanium dioxide, zinc oxide, silver, gold, and copper, as well as cellulose nanocrystals are among the nanostructures obtained by green synthesis that have shown interesting applications in several technological industries. Several analytical techniques have also been used to analyze the size, morphology, hydrodynamics, diameter, and chemical functional groups involved in the stabilization of the nanoparticles as well as to quantify and evaluate their formation. Despite their pharmaceutical, biotechnological, cosmetic, and food applications, studies have detected their harmful effects on human health and the environment; and thus, caution must be taken in uses involving living organisms. The present review aims to present an overview of the applications, the structural properties, and the green synthesis methods that are used to obtain nanoparticles, and special attention is given to those obtained from metal ions. The review also presents the analytical methods used to analyze, quantify, and characterize these nanostructures.
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Affiliation(s)
| | | | | | - Alan Kelbis Oliveira Lima
- Department of Genetics and Morphology, Institute of Biological Sciences, University of Brasilia, Brasília, Brazil
| | - Kauê Santana da Costa
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
| | - Hugo de Campos Braga
- Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, Brazil
| | - Paulo Sérgio Taube
- Institute of Biodiversity, Federal University of Western Pará, Santarém, Pará, Brazil
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28
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Toward a Better Understanding of Metal Nanoparticles, a Novel Strategy from Eucalyptus Plants. PLANTS 2021; 10:plants10050929. [PMID: 34066925 PMCID: PMC8148548 DOI: 10.3390/plants10050929] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 03/28/2021] [Accepted: 04/02/2021] [Indexed: 12/13/2022]
Abstract
Nanotechnology is a promising tool that has opened the doors of improvement to the quality of human's lives through its potential in numerous technological aspects. Green chemistry of nanoscale materials (1-100 nm) is as an effective and sustainable strategy to manufacture homogeneous nanoparticles (NPs) with unique properties, thus making the synthesis of green NPs, especially metal nanoparticles (MNPs), the scientist's core theme. Researchers have tested different organisms to manufacture MNPs and the results of experiments confirmed that plants tend to be the ideal candidate amongst all entities and are suitable to synthesize a wide variety of MNPs. Natural and cultivated Eucalyptus forests are among woody plants used for landscape beautification and as forest products. The present review has been written to reflect the efficacious role of Eucalyptus in the synthesis of MNPs. To better understand this, the route of extracting MNPs from plants, in general, and Eucalyptus, in particular, are discussed. Furthermore, the crucial factors influencing the process of MNP synthesis from Eucalyptus as well as their characterization and recent applications are highlighted. Information gathered in this review is useful to build a basis for new prospective research ideas on how to exploit this woody species in the production of MNPs. Nevertheless, there is a necessity to feed the scientific field with further investigations on wider applications of Eucalyptus-derived MNPs.
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29
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Lee B, Yoon S, Lee JW, Kim Y, Chang J, Yun J, Ro JC, Lee JS, Lee JH. Statistical Characterization of the Morphologies of Nanoparticles through Machine Learning Based Electron Microscopy Image Analysis. ACS NANO 2020; 14:17125-17133. [PMID: 33231065 DOI: 10.1021/acsnano.0c06809] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Although transmission electron microscopy (TEM) may be one of the most efficient techniques available for studying the morphological characteristics of nanoparticles, analyzing them quantitatively in a statistical manner is exceedingly difficult. Herein, we report a method for mass-throughput analysis of the morphologies of nanoparticles by applying a genetic algorithm to an image analysis technique. The proposed method enables the analysis of over 150,000 nanoparticles with a high precision of 99.75% and a low false discovery rate of 0.25%. Furthermore, we clustered nanoparticles with similar morphological shapes into several groups for diverse statistical analyses. We determined that at least 1,500 nanoparticles are necessary to represent the total population of nanoparticles at a 95% credible interval. In addition, the number of TEM measurements and the average number of nanoparticles in each TEM image should be considered to ensure a satisfactory representation of nanoparticles using TEM images. Moreover, the statistical distribution of polydisperse nanoparticles plays a key role in accurately estimating their optical properties. We expect this method to become a powerful tool and aid in expanding nanoparticle-related research into the statistical domain for use in big data analysis.
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Affiliation(s)
- Byoungsang Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Seokyoung Yoon
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Jin Woong Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Yunchul Kim
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Junhyuck Chang
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Jaesub Yun
- Department of Systems Management Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Jae Chul Ro
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Jong-Seok Lee
- Department of Systems Management Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
| | - Jung Heon Lee
- School of Advanced Materials Science and Engineering, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University (SKKU), Suwon 16419, South Korea
- Biomedical Institute for Convergence at SKKU (BICS), Sungkyunkwan University (SKKU), Suwon 16419, South Korea
- Institute of Quantum Biophysics (IQB), Sungkyunkwan University (SKKU), Suwon 16419, South Korea
- Research Center for Advanced Materials Technology, Sungkyunkwan University (SKKU), Suwon 16419, South Korea
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30
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da Silva JB, Dos Santos RS, da Silva MB, Braga G, Cook MT, Bruschi ML. Interaction between mucoadhesive cellulose derivatives and Pluronic F127: Investigation on the micelle structure and mucoadhesive performance. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 119:111643. [PMID: 33321681 DOI: 10.1016/j.msec.2020.111643] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 09/15/2020] [Accepted: 10/15/2020] [Indexed: 01/10/2023]
Abstract
Systems composed of bioadhesive and thermoresponsive polymers can combine in situ gelation with bio/mucoadhesion, enhancing retention of topically applied drugs. The effect of bioadhesive sodium carboxymethylcellulose (NaCMC) and hydroxypropyl methylcellulose cellulose (HPMC) on the properties of thermoresponsive Pluronic® F127 (F127) was explored, including micellization and the mucoadhesion. A computational analysis between these polymers and their molecular interactions were also studied, rationalising the design of improved binary polymeric systems for pharmaceutical and biomedical applications. The morphological characterization of polymeric systems was conducted by SEM. DSC analysis was used to investigate the crystallization and micellization enthalpy of F127 and the mixed systems. Micelle size measurements and TEM micrographs allowed for investigation into the interference of cellulose derivatives on F127 micellization. Both cellulose derivatives reduced the critical micellar concentration and enthalpy of micellization of F127, altering hydrodynamic diameters of the aggregates. Mucoadhesion performance was useful to select the best systems for mucosal application. The systems composed of 17.5% (w/w) F127 and 3% (w/w) HPMC or 1% (w/w) NaCMC are promising as topical drug delivery systems, mainly on mucosal surfaces. They were biocompatible when tested against Artemia salina, and also able to release a model of hydrophilic drug in a controlled manner.
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Affiliation(s)
- Jéssica Bassi da Silva
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, PR, Brazil
| | - Rafaela Said Dos Santos
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, PR, Brazil
| | | | - Gustavo Braga
- Department of Chemistry, State University of Maringa, Maringa, Brazil
| | - Michael Thomas Cook
- Research Centre in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9AB, United Kingdom
| | - Marcos Luciano Bruschi
- Postgraduate Program in Pharmaceutical Sciences, Laboratory of Research and Development of Drug Delivery Systems, Department of Pharmacy, State University of Maringa, Maringa, PR, Brazil.
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31
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Rayleigh and Rayleigh-Debye-Gans light scattering intensities and spetroturbidimetry of dispersions of unilamellar vesicles and multilamellar liposomes. J Colloid Interface Sci 2020; 578:471-483. [DOI: 10.1016/j.jcis.2020.05.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/20/2020] [Accepted: 05/21/2020] [Indexed: 11/22/2022]
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32
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Eitel K, Bryant G, Schöpe HJ. A Hitchhiker's Guide to Particle Sizing Techniques. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:10307-10320. [PMID: 32787012 DOI: 10.1021/acs.langmuir.0c00709] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Accurate characterization of particle size and particle size distributions is mandatory in nanotechnology and a broad range of colloidal sciences. The size of colloidal particles can be determined using various techniques in direct and reciprocal space, including electron microscopy and static and dynamic light scattering. Differential dynamic microscopy was introduced recently and offers a new alternative. In this paper we present a systematic study of particle size determination using various techniques. We compare the results and highlight advantages and disadvantages. Unexpectedly we find that differential dynamic microscopy offers the unique possibility to determine the particle size in highly turbid samples.
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Affiliation(s)
- Kathrin Eitel
- Institute for Applied Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
| | - Gary Bryant
- School of Science, RMIT University, Melbourne, Victoria 3000, Australia
| | - Hans Joachim Schöpe
- Institute for Applied Physics, Eberhard Karls University Tübingen, Auf der Morgenstelle 10, 72076 Tübingen, Germany
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33
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Payne LM, Albrecht W, Langbein W, Borri P. The optical nanosizer - quantitative size and shape analysis of individual nanoparticles by high-throughput widefield extinction microscopy. NANOSCALE 2020; 12:16215-16228. [PMID: 32706004 DOI: 10.1039/d0nr03504a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Nanoparticles are widely utilised for a range of applications, from catalysis to medicine, requiring accurate knowledge of their size and shape. Current techniques for particle characterisation are either not very accurate or time consuming and expensive. Here we demonstrate a rapid and quantitative method for particle analysis based on measuring the polarisation-resolved optical extinction cross-section of hundreds of individual nanoparticles using wide-field microscopy, and determining the particle size and shape from the optical properties. We show measurements on three samples consisting of nominally spherical gold nanoparticles of 20 nm and 30 nm diameter, and gold nanorods of 30 nm length and 10 nm diameter. Nanoparticle sizes and shapes in three dimensions are deduced from the measured optical cross-sections at different wavelengths and light polarisation, by solving the inverse problem, using an ellipsoid model of the particle polarisability in the dipole limit. The sensitivity of the method depends on the experimental noise and the choice of wavelengths. We show an uncertainty down to about 1 nm in mean diameter, and 10% in aspect ratio when using two or three color channels, for a noise of about 50 nm2 in the measured cross-section. The results are in good agreement with transmission electron microscopy, both 2D projection and tomography, of the same sample batches. Owing to its combination of experimental simplicity, ease of access to statistics over many particles, accuracy, and geometrical particle characterisation in 3D, this "optical nanosizer" method has the potential to become the technique of choice for quality control in next-generation particle manufacturing.
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Affiliation(s)
- Lukas M Payne
- The Sir Martin Evans Building, School of Biosciences, Cardiff University, Cardiff, Wales, UK
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34
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Baiyasi R, Gallagher MJ, McCarthy LA, Searles EK, Zhang Q, Link S, Landes CF. Quantitative Analysis of Nanorod Aggregation and Morphology from Scanning Electron Micrographs Using SEMseg. J Phys Chem A 2020; 124:5262-5270. [DOI: 10.1021/acs.jpca.0c03190] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Rashad Baiyasi
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
| | - Miranda J. Gallagher
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Lauren A. McCarthy
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Emily K. Searles
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
| | - Qingfeng Zhang
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Stephan Link
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Christy F. Landes
- Department of Electrical and Computer Engineering, Rice University, MS 366, Houston, Texas 77005, United States
- Department of Chemistry, Rice University, MS 60, Houston, Texas 77005, United States
- Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
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35
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Moreau LM, Herve A, Straub MD, Russo DR, Abergel RJ, Alayoglu S, Arnold J, Braun A, Deblonde GJP, Liu Y, Lohrey TD, Olive DT, Qiao Y, Rees JA, Shuh DK, Teat SJ, Booth CH, Minasian SG. Structural properties of ultra-small thorium and uranium dioxide nanoparticles embedded in a covalent organic framework. Chem Sci 2020; 11:4648-4668. [PMID: 34122920 PMCID: PMC8159168 DOI: 10.1039/c9sc06117g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 04/13/2020] [Indexed: 01/23/2023] Open
Abstract
We report the structural properties of ultra-small ThO2 and UO2 nanoparticles (NPs), which were synthesized without strong binding surface ligands by employing a covalent organic framework (COF-5) as an inert template. The resultant NPs were used to observe how structural properties are affected by decreasing grain size within bulk actinide oxides, which has implications for understanding the behavior of nuclear fuel materials. Through a comprehensive characterization strategy, we gain insight regarding how structure at the NP surface differs from the interior. Characterization using electron microscopy and small-angle X-ray scattering indicates that growth of the ThO2 and UO2 NPs was confined by the pores of the COF template, resulting in sub-3 nm particles. X-ray absorption fine structure spectroscopy results indicate that the NPs are best described as ThO2 and UO2 materials with unpassivated surfaces. The surface layers of these particles compensate for high surface energy by exhibiting a broader distribution of Th-O and U-O bond distances despite retaining average bond lengths that are characteristic of bulk ThO2 and UO2. The combined synthesis and physical characterization efforts provide a detailed picture of actinide oxide structure at the nanoscale, which remains highly underexplored compared to transition metal counterparts.
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Affiliation(s)
- Liane M Moreau
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | | | - Mark D Straub
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of California Berkeley CA 94720 USA
| | - Dominic R Russo
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of California Berkeley CA 94720 USA
| | - Rebecca J Abergel
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of California Berkeley CA 94720 USA
| | - Selim Alayoglu
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - John Arnold
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of California Berkeley CA 94720 USA
| | - Augustin Braun
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | | | | | - Trevor D Lohrey
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of California Berkeley CA 94720 USA
| | - Daniel T Olive
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- Los Alamos National Laboratory Los Alamos NM 87545 USA
| | - Yusen Qiao
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
- University of Pennsylvania Philadelphia PA 19104 USA
| | - Julian A Rees
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - David K Shuh
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Simon J Teat
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
| | - Corwin H Booth
- Lawrence Berkeley National Laboratory Berkeley CA 94720 USA
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36
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Baral P, Fradet C, Lacroix F, Le Bourhis E, Guillonneau G, Kermouche G, Bergheau JM, Loubet JL. Extrinsic Measurement of Carbon Black Aggregate Distribution within a Fluoroelastomer Matrix from Nanoindentation Experiments. ACS APPLIED MATERIALS & INTERFACES 2020; 12:6716-6726. [PMID: 31922715 DOI: 10.1021/acsami.9b20286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
A novel extrinsic method for the measurement of particle surface distribution in a carbon black-filled elastomer via nanoindentation is developed. This method is based on the measurement of the contact stiffness obtained from the continuous stiffness measurement mode. The proposed tip-particle model is held by two main hypotheses: the particles do not deform significantly during indentation so that only the elastomer matrix elastically deforms; particles are physically bounded with the surrounding matrix. Therefore, when the tip comes in contact with a particle, the latter becomes a hard extension of the tip, able to deform the elastomer matrix. Finally, the evolution of the measured contact stiffness is directly related to the increase of the contact area between the tip-particles set and the elastomer matrix. The proposed model is validated through a numerical and an experimental study. Moreover, an evaluation of the measurements bias allows to correct the particle surface distribution. A good agreement is found between the distribution measured from transmission electron microscopy observations and nanoindentation measurements.
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Affiliation(s)
- P Baral
- Université Lyon, Ecole Centrale de Lyon, CNRS UMR 5513 LTDS , Ecully F-69134 , France
- Mines Saint Etienne, Université de Lyon, CNRS UMR 5307 LGF, Centre SMS , Saint Etienne F42023 , France
| | - C Fradet
- Laboratoire de Mécanique Gabriel Lamé , Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours , 7 Avenue Marcel Dassault BP40 , Tours 37004 , France
- Département Physique et Mécanique des Matériaux, Institut Pprime, CNRS-Université de Poitiers , Boulevard Marie et Pierre Curie , Futuroscope, Chasseneuil du Poitou 86962 , France
| | - F Lacroix
- Laboratoire de Mécanique Gabriel Lamé , Université de Tours, Université d'Orléans, INSA Centre Val de Loire, Polytech Tours , 7 Avenue Marcel Dassault BP40 , Tours 37004 , France
| | - E Le Bourhis
- Département Physique et Mécanique des Matériaux, Institut Pprime, CNRS-Université de Poitiers , Boulevard Marie et Pierre Curie , Futuroscope, Chasseneuil du Poitou 86962 , France
| | - G Guillonneau
- Université Lyon, Ecole Centrale de Lyon, CNRS UMR 5513 LTDS , Ecully F-69134 , France
| | - G Kermouche
- Mines Saint Etienne, Université de Lyon, CNRS UMR 5307 LGF, Centre SMS , Saint Etienne F42023 , France
| | - J-M Bergheau
- Université Lyon, Ecole Nationale d'Ingénieurs de Saint Etienne, CNRS UMR 5513 LTDS , Saint Etienne F-42023 , France
| | - J-L Loubet
- Université Lyon, Ecole Centrale de Lyon, CNRS UMR 5513 LTDS , Ecully F-69134 , France
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37
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Pedroso‐Santana S, Fleitas‐Salazar N. Ionotropic gelation method in the synthesis of nanoparticles/microparticles for biomedical purposes. POLYM INT 2020. [DOI: 10.1002/pi.5970] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Seidy Pedroso‐Santana
- Pathophysiology Department, School of Biological SciencesUniversidad de Concepción Concepción Chile
| | - Noralvis Fleitas‐Salazar
- Pathophysiology Department, School of Biological SciencesUniversidad de Concepción Concepción Chile
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38
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Novel biogenic silver nanoparticles used for antibacterial effect and catalytic degradation of contaminants. RESEARCH ON CHEMICAL INTERMEDIATES 2020. [DOI: 10.1007/s11164-019-04075-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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39
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Sharma KS, Dubey AK, Koijam AS, Kumar C, Ballal A, Mukherjee S, Phadnis PP, Vatsa RK. Synthesis of 2-deoxy- d-glucose coated Fe 3O 4 nanoparticles for application in targeted delivery of the Pt( iv) prodrug of cisplatin – a novel approach in chemotherapy. NEW J CHEM 2020. [DOI: 10.1039/c9nj05989j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pt(IV) prodrug of cisplatin was loaded on 2DG functionalized silica coated Fe3O4 nanoparticles. The formulation alone exhibited biocompatibility whereas Pt(IV) loaded formulation exhibited cytotoxicity comparable with cisplatin.
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Affiliation(s)
| | - Akhil K. Dubey
- Bio-Organic Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
| | - Arunkumar S. Koijam
- Radiopharmaceuticals Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
| | - Chandan Kumar
- Radiopharmaceuticals Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
| | - Anand Ballal
- Molecular Biology Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
| | - Sudip Mukherjee
- UGC-DAE Consortium for Scientific Research
- Mumbai Centre
- Mumbai-400 085
- India
| | - Prasad P. Phadnis
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
- Homi Bhabha National Institute
| | - Rajesh K. Vatsa
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400 085
- India
- Homi Bhabha National Institute
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40
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An L, Wang JW, Liu JD, Zhao ZM, Song YJ. Design, Preparation, and Characterization of Novel Calix[4]arene Bioactive Carrier for Antitumor Drug Delivery. Front Chem 2019; 7:732. [PMID: 31788467 PMCID: PMC6855266 DOI: 10.3389/fchem.2019.00732] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Accepted: 10/14/2019] [Indexed: 01/12/2023] Open
Abstract
An amphiphilic and bioactive calix[4]arene derivative 8 (CA) is designed and successfully synthesized from tert-butyl calix[4] arene 1 by sequential inverse F-C alkylation, nitration, O-alkylation, esterification, aminolysis, reduction, and acylation reaction. The blank micelles of FA-CA and doxorubicin (DOX) loaded micelles FA-CA-DOX are prepared subsequently undergoing self-assembly and dialysis of CA and DSPE-PEG2000-FA. The drug release kinetics curve of the encapsulated-DOX micelle demonstrates a rapid release under mild conditions, indicating the good pH-responsive ability. Furthermore, the cytotoxicity of DOX-loaded micelle respect to the blank micelle against seven different human carcinoma (A549, HeLa, HepG2, HCT116, MCF-7, MDA-MB231, and SW480) cells has been also investigated. The results confirm the more significant inhibitory effect of DOX-loaded micelle than those of DOX and the blank micelles. The CDI calculations show a synergistic effect between blank micelles and DOX in inducing tumor cell death. In conclusion, FA-CA micelles reported in this work was a promising drug delivery vehicle for tumor targeting therapy.
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Affiliation(s)
- Lin An
- College of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jia-Wei Wang
- College of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jia-Dong Liu
- College of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Zi-Ming Zhao
- College of Pharmacy, Xuzhou Medical University, Xuzhou, China.,Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yuan-Jian Song
- Department of Genetics, Research Facility Center for Morphology, Xuzhou Medical University, Xuzhou, China
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41
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Atahar A, Mafy NN, Rahman MM, Mollah MYA, Susan MABH. Aggregation of urea in water: Dynamic light scattering analyses. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111612] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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42
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Abstract
Sizing natural or engineered single nanoscale objects is fundamental in many areas of science and technology. To achieve it several advanced microscopic techniques have been developed, mostly based on electron and scanning probe microscopies. Still for soft and poorly adhered samples the existing techniques face important challenges. Here, we propose an alternative method to size single nanoscale objects based on the measurement of its electric polarization. The method is based on Electrostatic Force Microscopy measurements combined with a specifically designed multiparameter quantification algorithm, which gives the physical dimensions (height and width) of the nanoscale object. The proposed method is validated with ~50 nm diameter silver nanowires, and successfully applied to ~10 nm diameter bacterial polar flagella, an example of soft and poorly adhered nanoscale object. We show that an accuracy comparable to AFM topographic imaging can be achieved. The main advantage of the proposed method is that, being based on the measurement of long-range polarization forces, it can be applied without contacting the sample, what is key when considering poorly adhered and soft nanoscale objects. Potential applications of the proposed method to a wide range of nanoscale objects relevant in Material, Life Sciences and Nanomedicine is envisaged.
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43
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Güldiken ÇG, Karaosmanoğlu O, Sivas H, Gerçel HF. ZnO microparticle‐loaded chitosan/poly(vinyl alcohol)/acacia gum nanosphere‐based nanocomposite thin film wound dressings for accelerated wound healing. J Appl Polym Sci 2019. [DOI: 10.1002/app.48445] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Çağla Gül Güldiken
- Department of Chemical EngineeringEskişehir Technical University Eskişehir 26 555 Turkey
- Department of Chemical EngineeringAnadolu University Eskişehir Turkey
| | | | - Hülya Sivas
- Department of BiologyEskişehir Technical University Eskişehir 26470 Turkey
- Department of BiologyAnadolu University Eskişehir 26470 Turkey
| | - Hasan Ferdi Gerçel
- Department of Chemical EngineeringEskişehir Technical University Eskişehir 26 555 Turkey
- Department of Chemical EngineeringAnadolu University Eskişehir Turkey
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44
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Golestanzadeh M, Naeimi H. Palladium decorated on a new dendritic complex with nitrogen ligation grafted to graphene oxide: fabrication, characterization, and catalytic application. RSC Adv 2019; 9:27560-27573. [PMID: 35529209 PMCID: PMC9070579 DOI: 10.1039/c9ra04511b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Accepted: 08/15/2019] [Indexed: 12/05/2022] Open
Abstract
Immobilized Pd nanoparticles on a new ligand, namely, tris(pentaethylene-pentamine)triazine supported on graphene oxide (Pdnp-TPEPTA(L)-GO) was introduced as a novel and robust heterogeneous catalyst for use in C-C bond formation reaction. The Pdnp-TPEPTA(L)-GO catalyst was synthesized by complexation of Pd with TPEPTA as a ligand with high N-ligation sites that were supported on graphene oxide through 3-chloropropyltrimethoxysilane. The prepared catalyst was characterized using some microscopic and spectroscopic techniques. The TPEPTA(L)-GO substrate is a 2D heterogeneous catalyst with a high specific surface area and a large amount of N-ligation sites. The Pdnp-TPEPTA(L)-GO catalyst used in the C-C bond formation reaction between aryl or heteroaryl and phenylboronic acid derivatives was applied towards the synthesis of biaryl units in high isolated yields. Notably, a series of competing experiments were performed to establish the selectivity trends of the presented method. Also, this catalyst system was reusable at least six times without a significant decrease in its catalytic activity.
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Affiliation(s)
- Mohsen Golestanzadeh
- Departetment of Organic Chemistry, Faculty of Chemistry, University of Kashan Kashan 8731751167 Iran +98-31-55912397 +98-31-55912388
- Child Growth and Development Research Center, Research Institute for Primordial Prevention of Non-Communicable Disease, Isfahan University of Medical Sciences Isfahan 8174673461 Iran
| | - Hossein Naeimi
- Departetment of Organic Chemistry, Faculty of Chemistry, University of Kashan Kashan 8731751167 Iran +98-31-55912397 +98-31-55912388
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45
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Li T, Nowell CJ, Cipolla D, Rades T, Boyd BJ. Direct Comparison of Standard Transmission Electron Microscopy and Cryogenic-TEM in Imaging Nanocrystals Inside Liposomes. Mol Pharm 2019; 16:1775-1781. [PMID: 30810323 DOI: 10.1021/acs.molpharmaceut.8b01308] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The use of electron microscopy techniques in the understanding of shape and size of nanoparticles are commonly applied to drug nanotechnology, but the type of microscopy and suitability for the particles of interest can have a significant impact on the result. The size and shape of the nanoparticles are crucial in clinical applications; however, direct comparison of the results from standard transmission electron microscopy (TEM) and cryo-TEM have rarely been reported. As a useful case for comparison, liposomal drug nanocrystals are studied here. In this study, the effect of thawing temperature on the size and shape of the ciprofloxacin nanocrystals was determined. A quantitative standard TEM assay was developed to allow for high-throughput particle size analysis. These results were compared to size and shape information obtained using the cryo-TEM method. The results showed broad agreement between the two TEM methods and that ciprofloxacin nanocrystals formed shorter and thinner crystals inside the liposomes at higher thawing temperatures. The results provide confidence in the use of standard TEM to determine the size and shape distribution of solid nanoparticles (in this case, encapsulated inside liposomes) from aqueous media without fear of sample preparation altering the conclusions.
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Affiliation(s)
- Tang Li
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Drug Delivery, Disposition, and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , Parkville , VIC 3052 , Australia
| | - Cameron J Nowell
- Drug Discovery Biology , Monash Institute of Pharmaceutical Sciences, Monash University , Parkville , VIC 3052 , Australia
| | - David Cipolla
- Insmed Inc. , 10 Finderne Ave., Building 10 , Bridgewater , New Jersey 08807 , United States
| | - Thomas Rades
- Faculty of Health and Medical Sciences, Department of Pharmacy , University of Copenhagen , 1165 Copenhagen , Denmark
| | - Ben J Boyd
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology and Drug Delivery, Disposition, and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , Parkville , VIC 3052 , Australia
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46
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Hwang GC, Blom DA, Vogt T, Lee J, Choi HJ, Shao S, Ma Y, Lee Y. Pressure-driven phase transitions and reduction of dimensionality in 2D silicon nanosheets. Nat Commun 2018; 9:5412. [PMID: 30575737 PMCID: PMC6303324 DOI: 10.1038/s41467-018-07832-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/27/2018] [Indexed: 11/22/2022] Open
Abstract
In-situ high-pressure synchrotron X-ray powder diffraction studies up to 21 GPa of CVD-grown silicon 2D-nanosheets establish that the structural phase transitions depend on size and shape. For sizes between 9.3(7) nm and 15.2(8) nm we observe an irreversible phase transition sequence from I (cubic) → II (tetragonal) → V (hexagonal) during pressure increase and during decompression below 8 GPa the emergence of an X-ray amorphous phase. High-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and atomic force microscopy (AFM) images of this X-ray amorphous phase reveal the formation of significant numbers of 1D nanowires with aspect ratios > 10, which are twinned and grow along the <111> direction. We discovered a reduction of dimensionality under pressure from a 2D morphology to a 1D wire in a material with a diamond structure. MD simulations indicate the reduction of thermal conductivity in such nanowires.
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Affiliation(s)
- Gil Chan Hwang
- Department of Earth System Sciences, Yonsei University, Seoul, 03722, Korea
| | - Douglas A Blom
- NanoCenter & Department of Chemical Engineering, University of South Carolina, Columbia, SC, 29208, USA
| | - Thomas Vogt
- NanoCenter & Department of Chemistry & Biochemistry, University of South Carolina, Columbia, SC, 29208, USA
| | - Jaejun Lee
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Korea
| | - Heon-Jin Choi
- Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Korea
| | - Sen Shao
- State Key Lab of Superhard Materials & Innovation Center for Computational Physics Methods and softwares, College of Physics, Jilin University, 130012, Changchun, China
| | - Yanming Ma
- State Key Lab of Superhard Materials & Innovation Center for Computational Physics Methods and softwares, College of Physics, Jilin University, 130012, Changchun, China
- International Center of Future Science, Jilin University, 130012, Changchun, China
| | - Yongjae Lee
- Department of Earth System Sciences, Yonsei University, Seoul, 03722, Korea.
- Center for High Pressure Science and Technology Advanced Research, 201203, Shanghai, China.
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47
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Jang H, Lee W, Lee J. Nanoparticle dispersion with surface-modified silica nanoparticles and its effect on the wettability alteration of carbonate rocks. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.06.045] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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48
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Siegrist S, Cörek E, Detampel P, Sandström J, Wick P, Huwyler J. Preclinical hazard evaluation strategy for nanomedicines. Nanotoxicology 2018; 13:73-99. [PMID: 30182784 DOI: 10.1080/17435390.2018.1505000] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The increasing nanomedicine usage has raised concerns about their possible impact on human health. Present evaluation strategies for nanomaterials rely on a case-by-case hazard assessment. They take into account material properties, biological interactions, and toxicological responses. Authorities have also emphasized that exposure route and intended use should be considered in the safety assessment of nanotherapeutics. In contrast to an individual assessment of nanomaterial hazards, we propose in the present work a novel and unique evaluation strategy designed to uncover potential adverse effects of such materials. We specifically focus on spherical engineered nanoparticles used as parenterally administered nanomedicines. Standardized assay protocols from the US Nanotechnology Characterization Laboratory as well as the EU Nanomedicine Characterisation Laboratory can be used for experimental data generation. We focus on both cellular uptake and intracellular persistence as main indicators for nanoparticle hazard potentials. Based on existing regulatory specifications defined by authorities such as the European Medicines Agency and the United States Food and Drug Administration, we provide a robust framework for application-oriented classification paired with intuitive decision making. The Hazard Evaluation Strategy (HES) for injectable nanoparticles is a three-tiered concept covering physicochemical characterization, nanoparticle (bio)interactions, and hazard assessment. It is cost-effective and can assist in the design and optimization of nanoparticles intended for therapeutic use. Furthermore, this concept is designed to be adaptable for alternative exposure and application scenarios. To the knowledge of the authors, the HES is unique in its methodology based on exclusion criteria. It is the first hazard evaluation strategy designed for nanotherapeutics.
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Affiliation(s)
- Stefan Siegrist
- a Division of Pharmaceutical Technology , Pharmacenter, University of Basel , Basel , Switzerland
| | - Emre Cörek
- a Division of Pharmaceutical Technology , Pharmacenter, University of Basel , Basel , Switzerland
| | - Pascal Detampel
- a Division of Pharmaceutical Technology , Pharmacenter, University of Basel , Basel , Switzerland
| | - Jenny Sandström
- b Swiss Centre for Applied Human Toxicology , Basel , Switzerland
| | - Peter Wick
- c Laboratory for Patricles-Biology Interactions , Empa Swiss Federal Laboratories for Materials Science and Technology , St. Gallen , Switzerland
| | - Jörg Huwyler
- a Division of Pharmaceutical Technology , Pharmacenter, University of Basel , Basel , Switzerland
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49
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Groom DJ, Yu K, Rasouli S, Polarinakis J, Bovik AC, Ferreira PJ. Automatic segmentation of inorganic nanoparticles in BF TEM micrographs. Ultramicroscopy 2018; 194:25-34. [PMID: 30056278 DOI: 10.1016/j.ultramic.2018.06.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 05/16/2018] [Accepted: 06/03/2018] [Indexed: 10/28/2022]
Abstract
Transmission electron microscopy (TEM) represents a unique and powerful modality for capturing spatial features of nanoparticles, such as size and shape. However, poor statistics arise as a key obstacle, due to the challenge in accurately and automatically segmenting nanoparticles in TEM micrographs. Towards remedying this deficit, we introduce an automatic particle picking device that is based on the concept of variance hybridized mean local thresholding. Validation of this new segmentation model is accomplished by applying a program written in Matlab to a database of 150 bright field TEM micrographs containing approximately 2,000 nanoparticles. We compare the results to global thresholding, local thresholding, and manual segmentation. It is found that this novel automatic particle picking device reduces false positives and false negatives significantly, while increasing the number of individual particles picked on regions of particle overlap.
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Affiliation(s)
- D J Groom
- Department of Chemical Engineering, University of Texas at Austin, Austin, TX 78712, USA.
| | - K Yu
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX 78712, USA
| | - S Rasouli
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX 78712, USA
| | - J Polarinakis
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - A C Bovik
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX 78712, USA
| | - P J Ferreira
- Materials Science and Engineering Program, University of Texas at Austin, Austin, TX 78712, USA
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50
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Ikeda M, Akagi T, Nagao M, Akashi M. Development of analytical methods for evaluating the quality of dissociated and associated amphiphilic poly(γ-glutamic acid) nanoparticles. Anal Bioanal Chem 2018; 410:4445-4457. [PMID: 29931574 DOI: 10.1007/s00216-018-1099-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 04/09/2018] [Accepted: 04/18/2018] [Indexed: 01/22/2023]
Abstract
A quantitative method of analyzing nanoparticles (NPs) for drug delivery is urgently required by researchers and industry. Therefore, we developed new quantitative analytical methods for biodegradable and amphiphilic NPs consisting of polymeric γ-PGA-Phe [phenylalanine attached to poly(γ-glutamic acid)] molecules. These γ-PGA-Phe NPs were completely dissociated into separate γ-PGA-Phe molecules by adding sodium dodecyl sulfate (SDS). The dissociated NPs were chromatographically separated to analyze parameters such as the γ-PGA-Phe content in the NPs, the impurities present [using reverse-phase (RP) HPLC with an ultraviolet (UV) detector], and the absolute MW [using size-exclusion chromatography (SEC) with refractive index detection (RI) and multiangle light scattering (MALS) detection, i.e., SEC-RI/MALS]. The chromatographic patterns of the NPs were equivalent to those of the component polymer (γ-PGA-Phe), and excellent chromatographic separation for the quantitative evaluation of NPs was achieved. To the best of our knowledge, this is the first report of the quantitative evaluation of NPs in the field of NP-based delivery systems. Furthermore, these methods were applied to optimize and evaluate the NP manufacturing process. The results showed that impurities were effectively removed from the γ-PGA-Phe during the manufacturing process, so the purity of the final γ-PGA-Phe NPs was enhanced. In addition, the appearance, clarity of solution, particle size, zeta potential, particle matter, osmolarity, and pH of the product were evaluated to ensure that the NPs were of the required quality. Our approach should prove useful for product and process characterization and quality control in the manufacture of NPs. γ-PGA-Phe NPs are known to be a powerful vaccine adjuvant, so they are expected to undergo clinical development into a practical drug-delivery system. The analytical methods established in this paper should facilitate the reliable and practical quality testing of NP products, thus aiding the clinical development of γ-PGA-Phe-based drug-delivery systems. Moreover, since these analytical methods employ commonly used reagents and chromatographic systems, the methods are expected to be applicable to other NP-based drug-delivery products too. Graphical abstract NPs were completely dissociated into separate γ-PGA-Phe polymeric molecules, which yielded a similar chromatogram to that seen for the NPs.
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Affiliation(s)
- Mayumi Ikeda
- Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 2-17-85 Jusohonmachi, Yodogawa-ku, Osaka, 532-8686, Japan.,Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, 565-0871, Japan
| | - Takami Akagi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, 565-0871, Japan
| | - Masao Nagao
- Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 2-17-85 Jusohonmachi, Yodogawa-ku, Osaka, 532-8686, Japan
| | - Mitsuru Akashi
- Building Block Science Joint Research Chair, Graduate School of Frontier Biosciences, Osaka University, 1-3 Yamadaoka, Suita, 565-0871, Japan.
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