1
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Xu F, Li Y, Zhao X, Liu G, Pang B, Liao N, Li H, Shi J. Diversity of fungus-mediated synthesis of gold nanoparticles: properties, mechanisms, challenges, and solving methods. Crit Rev Biotechnol 2024; 44:924-940. [PMID: 37455417 DOI: 10.1080/07388551.2023.2225131] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 05/21/2023] [Indexed: 07/18/2023]
Abstract
Fungi-mediated synthesis of Gold nanoparticles (AuNPs) has advantages in: high efficiency, low energy consumption, no need for extra capping and stabilizing agents, simple operation, and easy isolation and purification. Many fungi have been found to synthesize AuNPs inside cells or outside cells, providing different composition and properties of particles when different fungi species or reaction conditions are used. This is good to produce AuNPs with different properties, but may cause challenges to precisely control the particle shape, size, and activities. Besides, low concentrations of substrate and fungal biomass are needed to synthesize small-size particles, limiting the yield of AuNPs in a large scale. To find clues for the development methods to solve these challenges, the reported mechanisms of the fungi-mediated synthesis of AuNPs were summarized. The mechanisms of intracellular AuNPs synthesis are dependent on gold ions absorption by the fungal cell wall via proteins, polysaccharides, or electric absorption, and the reduction of gold ions via enzymes, proteins, and other cytoplasmic redox mediators in the cytoplasm or cell wall. The extracellular synthesis of AuNPs is mainly due to the metabolites outside fungal cells, including proteins, peptides, enzymes, and phenolic metabolites. These mechanisms cause the great diversity of the produced AuNPs in functional groups, element composition, shapes, sizes, and properties. Many methods have been developed to improve the synthesis efficiency by changing: chloroauric acid concentrations, reaction temperature, pH, fungal mass, and reaction time. However, future studies are still required to precisely control the: shape, size, composition, and properties of fungal AuNPs.
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Affiliation(s)
- Fengqin Xu
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Yinghui Li
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Xixi Zhao
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Guanwen Liu
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Bing Pang
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Ning Liao
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Huixin Li
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
| | - Junling Shi
- The Key Laboratory for Space Bioscience & Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi Province, China
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2
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Zhang Y, Liu Y, Lu Y, Gong S, Haick H, Cheng W, Wang Y. Tailor-Made Gold Nanomaterials for Applications in Soft Bioelectronics and Optoelectronics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2405046. [PMID: 39022844 DOI: 10.1002/adma.202405046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2024] [Revised: 06/02/2024] [Indexed: 07/20/2024]
Abstract
In modern nanoscience and nanotechnology, gold nanomaterials are indispensable building blocks that have demonstrated a plethora of applications in catalysis, biology, bioelectronics, and optoelectronics. Gold nanomaterials possess many appealing material properties, such as facile control over their size/shape and surface functionality, intrinsic chemical inertness yet with high biocompatibility, adjustable localized surface plasmon resonances, tunable conductivity, wide electrochemical window, etc. Such material attributes have been recently utilized for designing and fabricating soft bioelectronics and optoelectronics. This motivates to give a comprehensive overview of this burgeoning field. The discussion of representative tailor-made gold nanomaterials, including gold nanocrystals, ultrathin gold nanowires, vertically aligned gold nanowires, hard template-assisted gold nanowires/gold nanotubes, bimetallic/trimetallic gold nanowires, gold nanomeshes, and gold nanosheets, is begun. This is followed by the description of various fabrication methodologies for state-of-the-art applications such as strain sensors, pressure sensors, electrochemical sensors, electrophysiological devices, energy-storage devices, energy-harvesting devices, optoelectronics, and others. Finally, the remaining challenges and opportunities are discussed.
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Affiliation(s)
- Yujie Zhang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yi Liu
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Yuerui Lu
- School of Engineering, College of Engineering, Computing and Cybernetics, The Australian National University, Canberra, ACT, 2601, Australia
| | - Shu Gong
- School of Materials Science and Engineering, Central South University, Changsha, 410083, P. R. China
| | - Hossam Haick
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
| | - Wenlong Cheng
- School of Biomedical Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yan Wang
- Department of Chemical Engineering, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
- The Wolfson Department of Chemical Engineering, Technion - Israel Institute of Technology, Haifa, 3200003, Israel
- Key Laboratory of Science and Engineering for Health and Medicine of Guangdong Higher Education Institutes, Guangdong Technion - Israel Institute of Technology, Shantou, Guangdong, 515063, China
- Guangdong Provincial Key Laboratory of Materials and Technologies for Energy Conversion, Guangdong Technion - Israel Institute of Technology, 241 Daxue Road, Shantou, Guangdong, 515063, China
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3
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Hanigan-Diebel J, Costin RJ, Myers LC, Vandermeer CI, Willis MS, Takhar K, Odinakachukwu OV, Carroll MG, Schiffbauer JE, Lohse SE. Affinity Constants of Bovine Serum Albumin for 5 nm Gold Nanoparticles (AuNPs) with ω-Functionalized Thiol Monolayers Determined by Fluorescence Spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40. [PMID: 39013805 PMCID: PMC11295198 DOI: 10.1021/acs.langmuir.4c01234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 07/09/2024] [Accepted: 07/10/2024] [Indexed: 07/18/2024]
Abstract
A detailed understanding of the binding of serum proteins to small (dcore <10 nm) nanoparticles (NPs) is essential for the mediation of protein corona formation in next generation nanotherapeutics. While a number of studies have investigated the details of protein adsorption on large functionalized NPs, small NPs (with a particle surface area comparable in size to the protein) have not received extensive study. This study determined the affinity constant (Ka) of BSA when binding to three different functionalized 5 nm gold nanoparticles (AuNPs). AuNPs were synthesized using three ω-functionalized thiols (mercaptoethoxy-ethoxy-ethanol (MEEE), mercaptohexanoic acid (MHA), and mercaptopentyltrimethylammonium chloride (MPTMA)), giving rise to particles with three different surface charges. The binding affinity of bovine serum albumin (BSA) to the different AuNP surfaces was investigated using UV-visible absorbance spectroscopy, dynamic light scattering (DLS), and fluorescence quenching titrations. Fluorescence titrations indicated that the affinity of BSA was actually highest for small AuNPs with a negative surface charge (MHA-AuNPs). Interestingly, the positively charged MPTMA-AuNPs showed the lowest Ka for BSA, indicating that electrostatic interactions are likely not the primary driving force in binding of BSA to these small AuNPs. Ka values at 25 °C for MHA, MEEE, and MPTMA-AuNPs were 5.2 ± 0.2 × 107, 3.7 ± 0.2 × 107, and 3.3 ± 0.16 × 107 M-1 in water, respectively. Fluorescence quenching titrations performed in 100 mM NaCl resulted in lower Ka values for the charged AuNPs, while the Ka value for the MEEE-AuNPs remained unchanged. Measurement of the hydrodynamic diameter (Dh) by dynamic light scattering (DLS) suggests that adsorption of 1-2 BSA molecules is sufficient to saturate the AuNP surface. DLS and negative-stain TEM images indicate that, despite the lower observed Ka values, the binding of MPTMA-AuNPs to BSA likely induces significant protein misfolding and may lead to extensive BSA aggregation at specific BSA:AuNP molar ratios.
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Affiliation(s)
- Jennifer
L. Hanigan-Diebel
- Chemistry
Department, Central Washington University, 400 East University Way, Ellensburg, Washington 98926, United States
| | - Robert J. Costin
- Department
of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave, Grand Junction, Colorado 81501, United States
| | - Logan C. Myers
- Department
of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave, Grand Junction, Colorado 81501, United States
| | - Christopher I. Vandermeer
- Department
of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave, Grand Junction, Colorado 81501, United States
| | - Miles S. Willis
- Department
of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave, Grand Junction, Colorado 81501, United States
| | - Kiran Takhar
- Chemistry
Department, Central Washington University, 400 East University Way, Ellensburg, Washington 98926, United States
| | - Ogechukwu V. Odinakachukwu
- Chemistry
Department, Central Washington University, 400 East University Way, Ellensburg, Washington 98926, United States
| | - Matthias G. Carroll
- Chemistry
Department, Central Washington University, 400 East University Way, Ellensburg, Washington 98926, United States
| | - Jarrod E. Schiffbauer
- Department
of Physical and Environmental Sciences, Colorado Mesa University, 1100 North Ave, Grand Junction, Colorado 81501, United States
| | - Samuel E. Lohse
- Chemistry
Department, Central Washington University, 400 East University Way, Ellensburg, Washington 98926, United States
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4
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Wang W, Shu Z, Wei H, Yan W, Yi Z, Gao C. Hyper-crosslinked Isoporous Block Copolymer Membranes with Robust Solvent Resistance and Customized Pore Sizes for Precise Separation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308171. [PMID: 38095505 DOI: 10.1002/smll.202308171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 11/09/2023] [Indexed: 05/18/2024]
Abstract
Isoporous block copolymer membranes are viewed as the next-generation separation membranes for their unique structures and urgent application in precise separation. However, an obvious weakness for such membranes is their poor solvent-resistance which limits their applications to aqueous solution, and isoporous membranes with superior solvent-resistance and tunable pore size have been rarely prepared before. Herein, self-supporting isoporous membranes with excellent solvent resistance are prepared by the facile yet robust hyper-crosslinking approach which is able to create a rigid network in whole membranes. The hyper-crosslinking is found to be a novel and non-destructive approach that does not change pore size and isoporous structure during the reaction, and the resulting hyper-crosslinked isoporous membranes display superior structural and separation stability to a broad range of solvents with varied polarities for months to years. More importantly, hyper-crosslinking has proved to be a universal strategy that is applicable to isoporous membranes with varied pore size and pore chemistry, offering an important opportunity to prepare solvent-resistant isoporous membranes with customizable pore size and pore functionality that are important to realize their accurate separations in organic solvents. This concept is demonstrated finally by precise and on-demand separation of nanoparticles with the prepared membranes.
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Affiliation(s)
- Wenjing Wang
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhe Shu
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hongxing Wei
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Wentao Yan
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Zhuan Yi
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
- Huzhou Institute of Collaborative Innovation Center for Membrane Separation and Water treatment, Hong Feng Road, Huzhou, 313000, China
| | - Congjie Gao
- Center for Membrane and Water Science & Technology, Zhejiang University of Technology, Hangzhou, 310014, China
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5
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Ren X, Breadmore MC, Maya F. Bidimensional Dynamic Magnetic Levitation: Sequential Separation of Microplastics by Density and Size. Anal Chem 2024; 96:3259-3266. [PMID: 38363724 DOI: 10.1021/acs.analchem.3c02918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2024]
Abstract
There is a current gap in sample preparation techniques integrating the separation of microplastics according to their different material types and particle sizes. We describe herein the Bidimensional Dynamic Magnetic Levitation (2D-MagLev) technique, enabling the resolution of mixtures of microplastics sorting them by plastic type and particle size. Separations are carried out in a bespoke flow cell sandwiched between two ring magnets and connected to programmable pumps for flow control. The first separation dimension is based on sequential increases in the concentration of a paramagnetic salt (MnCl2), enabling magnetic levitation of microplastics with determined densities. The second dimension is based on increasing flow rate gradients and maintaining constant MnCl2 concentrations. This fractionates the magnetically levitating microplastics according to their different particle sizes. Microplastics are therefore collected by their increasing density, and the particles corresponding to each density are fractionated from smaller to larger size. Using polyethylene microspheres with defined density (1.03-1.13 g cm-3) and size (98-390 μm) as microplastic mimicking materials, we investigated their optimum threshold velocities for their size fractionation, potential effects of medium viscosity and sample loading, and types of flow rate gradients (linear, step). Performing a separation using a combination of step gradients in both MnCl2 concentration and flow rate, mixtures comprising microplastics of two different densities and three different particle sizes were separated. 2D-MagLev is simple, fast, versatile, and robust, opening new avenues to facilitate the study of the environmental presence and impact of microplastics.
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Affiliation(s)
- Xinpeng Ren
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Michael C Breadmore
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Fernando Maya
- Australian Centre for Research on Separation Science, School of Natural Sciences, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
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6
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Liu Y, Zeng T, Liu C, Fang X, Li S, Cao X, Lu C, Yang H. DNA Origami-Based Letterpress Printing of Gold Nanostructures with Predesigned Morphologies. NANO LETTERS 2023; 23:11569-11577. [PMID: 38078629 DOI: 10.1021/acs.nanolett.3c03307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2023]
Abstract
Creating customizable metallic nanostructures in a simple and controllable manner has been a long-standing goal in nanoscience. In this study, we use DNA origami as a letterpress printing plate and gold nanoparticles as ink to produce predesigned gold nanostructures. The letterpress plate is reusable, enabling the repetitive production of predesigned gold nanostructures. Furthermore, by modifying the DNA origami letterpress plate on magnetic beads, we can simplify the printing processes. We have successfully printed gold nanoparticle dimers, trimers, straight and quadrilateral tetramers, and other nanostructures. Our approach improves the flexibility and stability of metallic nanostructures, simplifying both their design and their operation. It promises universal applicability in the fabrication of metamaterials, biosensors, and surface plasma nanooptics.
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Affiliation(s)
- Yana Liu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Tao Zeng
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Chuang Liu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Xiao Fang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Shiqing Li
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Xiuping Cao
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Chunhua Lu
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
| | - Huanghao Yang
- MOE Key Laboratory for Analytical Science of Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, People's Republic of China
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7
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Le Ouay B, Ohara T, Minami R, Kunitomo R, Ohtani R, Ohba M. Efficient water-based purification of metal-organic polyhedra by centrifugal ultrafiltration. Dalton Trans 2023; 52:15321-15325. [PMID: 37341496 DOI: 10.1039/d3dt01644g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2023]
Abstract
An efficient water-based purification strategy for metal-organic polyhedra (MOPs) using commercially available centrifugal ultrafiltration membranes was developed. Having a diameter above 3 nm, MOPs were almost fully retained by the filters, while free ligands and other impurities were washed away. MOP retention also enabled efficient counter-ion exchange. This method paves the way for the application of MOPs with biological systems.
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Affiliation(s)
- Benjamin Le Ouay
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Tomo Ohara
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Ryosuke Minami
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Rin Kunitomo
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Ryo Ohtani
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Masaaki Ohba
- Department of Chemistry, Graduate School of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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8
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Sukmanee T, Szuster M, Gorski A, Hołdyński M, Gawinkowski S. Tunable-wavelength nanosecond laser tailoring of plasmon resonance spectra of gold nanoparticle colloids. NANOSCALE ADVANCES 2023; 5:3697-3704. [PMID: 37441263 PMCID: PMC10334372 DOI: 10.1039/d3na00225j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/21/2023] [Indexed: 07/15/2023]
Abstract
Metal nanoparticles have applications across a range of fields of science and industry. While there are numerous existing methods to facilitate their large-scale production, most face limitations, particularly in achieving reproducible processes and minimizing undesirable impurities. Common issues are varying particle sizes and aggregates with unfavorable spectral properties. Researchers are currently developing methods to separate or modify nanoparticle sizes and shapes post-synthesis and to eliminate impurities. One promising approach involves laser light irradiation and enables the changing of nanoparticle sizes and shapes while controlling crucial spectral parameters. In this work, we present a novel extension of this method by irradiating nanoparticle colloids with variable-wavelength nanosecond laser pulses on both sides of the extinction band. Our results demonstrate the use of gradual laser wavelength tuning to optimize the photothermal reshaping of gold nanorods and achieve precise control over the plasmon resonance band. By irradiating both sides of the plasmon resonance band, we execute a multistep tuning process, controlling the band's width and spectral position. A statistical analysis of SEM images reveals differences in the nanorod morphology when irradiated on the long- or short-wavelength side of the plasmon resonance band. The fine-tuning of plasmonic spectral properties is desirable for various applications, including the development of sensors and filters and the exploitation of the photothermal effect. The findings of this study can be extended to other plasmonic nanostructures.
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Affiliation(s)
- Thanyada Sukmanee
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Michał Szuster
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Aleksander Gorski
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Marcin Hołdyński
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Sylwester Gawinkowski
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
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9
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Kim YC, Composto RJ, Winey KI. pH-Mediated Size-Selective Adsorption of Gold Nanoparticles on Diblock Copolymer Brushes. ACS NANO 2023; 17:9224-9234. [PMID: 37134256 DOI: 10.1021/acsnano.3c00212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Precise control of nanoparticles at interfaces can be achieved by designing stimuli-responsive surfaces that have tunable interactions with nanoparticles. In this study, we demonstrate that a polymer brush can selectively adsorb nanoparticles according to size by tuning the pH of the buffer solution. Specifically, we developed a facile polymer brush preparation method using a symmetric polystyrene-b-poly(2-vinylpyridine) (PS-b-P2VP) block copolymer deposited on a grafted polystyrene layer. This method is based on the assembly of a PS-b-P2VP thin film oriented with parallel lamellae that remains after exfoliation of the top PS-b-P2VP layer. We characterized the P2VP brush using X-ray reflectivity and atomic force microscopy. The buffer pH is used to tailor interactions between citrate-coated gold nanoparticles (AuNPs) and the top P2VP block that behaves like a polymer brush. At low pH (∼4.0) the P2VP brushes are strongly stretched and display a high density of attractive sites, whereas at neutral pH (∼6.5) the P2VP brushes are only slightly stretched and have fewer attractive sites. A quartz crystal microbalance with dissipation monitored the adsorption thermodynamics as a function of AuNP diameter (11 and 21 nm) and pH of the buffer. Neutral pH provides limited penetration depth for nanoparticles and promotes size selectivity for 11 nm AuNP adsorption. As a proof of concept, the P2VP brushes were exposed to various mixtures of large and small AuNPs to demonstrate selective capture of the smaller AuNPs. This study shows the potential of creating devices for nanoparticle size separations using pH-sensitive polymer brushes.
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Affiliation(s)
- Ye Chan Kim
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Russell J Composto
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Karen I Winey
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
- Department of Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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10
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Jiang H, Wang Y, Tan Z, Hu L, Shi J, Liu G, Yin Y, Cai Y, Jiang G. Dissolved metal ion removal by online hollow fiber ultrafiltration for enhanced size characterization of metal-containing nanoparticles with single-particle ICP-MS. J Environ Sci (China) 2023; 126:494-505. [PMID: 36503776 DOI: 10.1016/j.jes.2022.05.034] [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: 10/26/2021] [Revised: 05/17/2022] [Accepted: 05/20/2022] [Indexed: 06/17/2023]
Abstract
Single particle-inductively coupled plasma mass spectrometry (SP-ICP-MS) is a powerful tool for size-characterization of metal-containing nanoparticles (MCNs) at environmentally relevant concentrations, however, coexisting dissolved metal ions greatly interfere with the accuracy of particle size analysis. The purpose of this study is to develop an online technique that couples hollow fiber ultrafiltration (HFUF) with SP-ICP-MS to improve the accuracy and size detection limit of MCNs by removing metal ions from suspensions of MCNs. Through systematic optimization of conditions including the type and concentration of surfactant and complexing agent, carrier pH, and ion cleaning time, HFUF completely removes metal ions but retains the MCNs in suspension. The optimal conditions include using a mixture of 0.05 vol.% FL-70 and 0.5 mmol/L Na2S2O3 (pH = 8.0) as the carrier and 4 min as the ion cleaning time. At these conditions, HFUF-SP-ICP-MS accurately determines the sizes of MCNs, and the results agree with the size distribution determined by transmission electron microscopy, even when metal ions also are present in the sample. In addition, reducing the ionic background through HFUF also lowers the particle size detection limit with SP-ICP-MS (e.g., from 28.3 to 14.2 nm for gold nanoparticles). This size-based ion-removal principle provided by HFUF is suitable for both cations (e.g., Ag+) and anions (e.g., AuCl4-) and thus has good versatility compared to ion exchange purification and promising prospects for the removal of salts and macromolecules before single particle analysis.
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Affiliation(s)
- Haowen Jiang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ying Wang
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhiqiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jianbo Shi
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guangliang Liu
- Department of Chemistry and Biochemistry, Florida International University, Miami 33199, USA
| | - Yongguang Yin
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China; School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China.
| | - Yong Cai
- Laboratory of Environmental Nanotechnology and Health Effect, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; Department of Chemistry and Biochemistry, Florida International University, Miami 33199, USA
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Beijing 100049, China
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11
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Packirisamy V, Pandurangan P. Polyacrylamide gel electrophoresis: a versatile tool for the separation of nanoclusters. Biotechniques 2023; 74:51-62. [PMID: 36517970 PMCID: PMC9887536 DOI: 10.2144/btn-2022-0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Atomically precise nanoclusters comprising 1-100 atoms have emerged as a new class of nanomaterials with intriguing size-dependent physicochemical properties. The significant changes in the properties of nanoclusters were observed in tailoring the number of metal atoms and ligands that determines their functions and applicability. Since 1990, thiolated gold nanoclusters have been studied. The separation of monodispersed clusters was crucial and time-consuming. To address these shortcomings, several separation techniques have made it possible to separate the series of metal nanoclusters with a precise composition of metals and ligands. Among these techniques, polyacrylamide gel electrophoresis was utilized for hydrophilic cluster separation. This review shall focus on the principle, operation and application of the polyacrylamide gel electrophoresis technique to encourage a greater understanding of the characteristics and usefulness of this method.
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Affiliation(s)
- Vinitha Packirisamy
- Department of Physical Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai, 600025, India
| | - Prabhu Pandurangan
- Department of Physical Chemistry, School of Chemical Science, University of Madras, Guindy Campus, Chennai, 600025, India,Author for correspondence:
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12
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Oliveira MJ, Dalot A, Fortunato E, Martins R, Byrne HJ, Franco R, Águas H. Microfluidic SERS devices: brightening the future of bioanalysis. DISCOVER MATERIALS 2022; 2:12. [PMID: 36536830 PMCID: PMC9751519 DOI: 10.1007/s43939-022-00033-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
A new avenue has opened up for applications of surface-enhanced Raman spectroscopy (SERS) in the biomedical field, mainly due to the striking advantages offered by SERS tags. SERS tags provide indirect identification of analytes with rich and highly specific spectral fingerprint information, high sensitivity, and outstanding multiplexing potential, making them very useful in in vitro and in vivo assays. The recent and innovative advances in nanomaterial science, novel Raman reporters, and emerging bioconjugation protocols have helped develop ultra-bright SERS tags as powerful tools for multiplex SERS-based detection and diagnosis applications. Nevertheless, to translate SERS platforms to real-world problems, some challenges, especially for clinical applications, must be addressed. This review presents the current understanding of the factors influencing the quality of SERS tags and the strategies commonly employed to improve not only spectral quality but the specificity and reproducibility of the interaction of the analyte with the target ligand. It further explores some of the most common approaches which have emerged for coupling SERS with microfluidic technologies, for biomedical applications. The importance of understanding microfluidic production and characterisation to yield excellent device quality while ensuring high throughput production are emphasised and explored, after which, the challenges and approaches developed to fulfil the potential that SERS-based microfluidics have to offer are described.
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Affiliation(s)
- Maria João Oliveira
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and, CEMOP/UNINOVA, Caparica, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Dalot
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and, CEMOP/UNINOVA, Caparica, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Elvira Fortunato
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and, CEMOP/UNINOVA, Caparica, Portugal
| | - Rodrigo Martins
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and, CEMOP/UNINOVA, Caparica, Portugal
| | - Hugh J. Byrne
- FOCAS Research Institute, Technological University Dublin, Camden Row, Dublin 8, Dublin, Ireland
| | - Ricardo Franco
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
- UCIBIO—Applied Molecular Biosciences Unit, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal
| | - Hugo Águas
- CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon and, CEMOP/UNINOVA, Caparica, Portugal
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13
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Lebovka N, Petryk M, Vorobiev E. Monte Carlo simulation of dead-end diafiltration of bidispersed particle suspensions. Phys Rev E 2022; 106:064610. [PMID: 36671101 DOI: 10.1103/physreve.106.064610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
A two-dimensional Monte Carlo simulation of dead-end diafiltration of bidispersed particle suspensions was performed. The diafiltration process involves separation of components based on their size by using a permeable membrane. The continuous model was applied to study separation of mixture of disks with diameter d and D (D>d). It was assumed that the membrane at the bottom was permeable to the particles of the smaller diameter d, and impermeable to the particles of the larger diameter D. The process of vertical filtration was accompanied by the simultaneous Brownian motion of the particles and downward movement of the piston. The mixtures with different numerical concentrations of particles, diameter ratio, and initial size of the systems in the vertical direction L_{y} have been studied. The time dependencies of the rejection coefficient k and relative height of suspension h/L_{y} revealed the presence of complete and incomplete separation regimes. The presence of filtration and diffusion-driven stratification of the disks in the vertical direction was observed. The phenomenon of incomplete separation was explained by the formation of an impenetrable barrier from larger particles at the bottom of the deposit.
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Affiliation(s)
- Nikolai Lebovka
- Laboratory of Physical Chemistry of Disperse Minerals, F. D. Ovcharenko Institute of Biocolloidal Chemistry, NAS of Ukraine, Kyiv 03142, Ukraine
| | - Mykhaylo Petryk
- Ternopil Ivan Puluj National Technical University, 56, Ruska Street, Ternopil 46001, Ukraine
| | - Eugene Vorobiev
- Groupe Technologies Agro-Industriels, A 4297, Département Génie des Procédés, Université de Technologie de Compiègne, B.P. 20529, 60205 Compiègne, France
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14
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Johny J, van Halteren CER, Zwiehoff S, Behrends C, Bäumer C, Timmermann B, Rehbock C, Barcikowski S. Impact of Sterilization on the Colloidal Stability of Ligand-Free Gold Nanoparticles for Biomedical Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:13030-13047. [PMID: 36260482 DOI: 10.1021/acs.langmuir.2c01557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Sterilization is a major prerequisite for the utilization of nanoparticle colloids in biomedicine, a process well examined for particles derived from chemical synthesis although highly underexplored for electrostatically stabilized ligand-free gold nanoparticles (AuNPs). Hence, in this work, we comprehensively examined and compared the physicochemical characteristics of laser-generated ligand-free colloidal AuNPs exposed to steam sterilization and sterile filtration as a function of particle size and mass concentration and obtained physicochemical insight into particle growth processes. These particles exhibit long-term colloidal stability (up to 3 months) derived from electrostatic stabilization without using any ligands or surfactants. We show that particle growth attributed to cluster-based ripening occurs in smaller AuNPs (∼5 nm) following autoclaving, while larger particles (∼10 and ∼30 nm) remain stable. Sterile filtration, as an alternative effective sterilizing approach, has no substantial impact on the colloidal stability of AuNPs, regardless of particle size, although a mass loss of 5-10% is observed. Finally, we evaluated the impact of the sterilization procedures on potential particle functionality in proton therapy, using the formation of reactive oxygen species (ROS) as a readout. In particular, 5 nm AuNPs exhibit a significant loss in activity upon autoclaving, probably dedicated to specific surface area reduction and surface restructuring during particle growth. The filtered analog enhanced the ROS release by up to a factor of ∼2.0, at 30 ppm gold concentration. Our findings highlight the need for carefully adapting the sterilization procedure of ligand-free NPs to the desired biomedical application with special emphasis on particle size and concentration.
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Affiliation(s)
- Jacob Johny
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Charlotte E R van Halteren
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Sandra Zwiehoff
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Carina Behrends
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- Department of Physics, TU Dortmund University, 44227 Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
| | - Christian Bäumer
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- Department of Physics, TU Dortmund University, 44227 Dortmund, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
| | - Beate Timmermann
- West German Cancer Centre (WTZ), University Hospital Essen, 45147 Essen, Germany
- West German Proton Therapy Centre Essen (WPE), 45147 Essen, Germany
- German Cancer Consortium (DKTK), 69120 Heidelberg, Germany
- Department of Particle Therapy, University Hospital Essen, 45147 Essen, Germany
- Faculty of Medicine, University Hospital Essen, 45147 Essen, Germany
| | - Christoph Rehbock
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
| | - Stephan Barcikowski
- Technical Chemistry I and Center for Nanointegration Duisburg-Essen (CENIDE), University of Duisburg-Essen, 45141 Essen, Germany
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15
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Xie Y, Xu X, Lin J, Xu Y, Wang J, Ren Y, Wu A. Effective Separation of Cancer-Derived Exosomes in Biological Samples for Liquid Biopsy: Classic Strategies and Innovative Development. GLOBAL CHALLENGES (HOBOKEN, NJ) 2022; 6:2100131. [PMID: 36176940 PMCID: PMC9463520 DOI: 10.1002/gch2.202100131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/28/2022] [Indexed: 05/26/2023]
Abstract
Liquid biopsy has remarkably facilitated clinical diagnosis and surveillance of cancer via employing a non-invasive way to detect cancer-derived components, such as circulating tumor DNA and circulating tumor cells from biological fluid samples. The cancer-derived exosomes, which are nano-sized vesicles secreted by cancer cells have been investigated in liquid biopsy as their important roles in intracellular communication and disease development have been revealed. Given the challenges posed by the complicated humoral microenvironment, which contains a variety of different cells and macromolecular substances in addition to the exosomes, it has attracted a large amount of attention to effectively isolate exosomes from collected samples. In this review, the authors aim to analyze classic strategies for separation of cancer-derived exosomes, giving an extensive discussion of advantages and limitations of these methods. Furthermore, the innovative multi-strategy methods to realize efficient isolation of cancer-derived exosomes in practical applications are also presented. Additionally, the possible development trends of exosome separation in to the future is discussed in this review.
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Affiliation(s)
- Yujiao Xie
- Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical MaterialsTechnology and ApplicationChinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo315201P. R. China
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhou516000P. R. China
- Research Group for Fluids and Thermal EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
- Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
| | - Xiawei Xu
- Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical MaterialsTechnology and ApplicationChinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo315201P. R. China
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhou516000P. R. China
- Research Group for Fluids and Thermal EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
- Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
| | - Jie Lin
- Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical MaterialsTechnology and ApplicationChinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo315201P. R. China
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhou516000P. R. China
| | - Yanping Xu
- Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical MaterialsTechnology and ApplicationChinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo315201P. R. China
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhou516000P. R. China
| | - Jing Wang
- Department of Electrical and Electronic EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
- Key Laboratory of More Electric Aircraft Technology of Zhejiang ProvinceUniversity of Nottingham Ningbo ChinaNingbo315100China
- Nottingham Ningbo China Beacons of Excellence Research and Innovation InstituteNingbo315040China
| | - Yong Ren
- Research Group for Fluids and Thermal EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
- Department of MechanicalMaterials and Manufacturing EngineeringUniversity of Nottingham Ningbo ChinaNingbo315100China
- Nottingham Ningbo China Beacons of Excellence Research and Innovation InstituteNingbo315040China
- Key Laboratory of Carbonaceous Wastes Processing and Process Intensification Research of Zhejiang ProvinceUniversity of Nottingham Ningbo ChinaNingbo315100China
| | - Aiguo Wu
- Cixi Institute of Biomedical EngineeringInternational Cooperation Base of Biomedical MaterialsTechnology and ApplicationChinese Academy of Science (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and EngineeringCASNingbo315201P. R. China
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhou516000P. R. China
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16
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Gaglianò M, Conidi C, De Luca G, Cassano A. Partial Removal of Sugar from Apple Juice by Nanofiltration and Discontinuous Diafiltration. MEMBRANES 2022; 12:membranes12070712. [PMID: 35877915 PMCID: PMC9323795 DOI: 10.3390/membranes12070712] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 12/13/2022]
Abstract
Partial removal of sugars in fruit juices without compromising their biofunctional properties represents a significant technological challenge. The current study was aimed at evaluating the separation of sugars from phenolic compounds in apple juice by using three different spiral-wound nanofiltration (NF) membranes with a molecular weight cut-off (MWCO) in the range of 200–500 Da. A combination of diafiltration and batch concentration processes was investigated to produce apple juice with reduced sugar content and improved health properties thanks to the preservation and concentration of phenolic compounds. For all selected membranes, permeate flux and recovery rate of glucose, fructose, and phenolic compounds, in both diafiltration and concentration processes, were evaluated. The concentration factor of target compounds as a function of the volume reduction factor (VRF) as well as the amount of adsorbed compound on the membrane surface from mass balance analysis were also evaluated. Among the investigated membranes a thin-film composite membrane with an MWCO of 200–300 Da provided the best results in terms of the preservation of phenolic compounds in the selected operating conditions. More than 70% of phenolic compounds were recovered in the retentate stream while the content of sugars was reduced by about 60%.
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Affiliation(s)
- Martina Gaglianò
- Department of Chemistry & Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Rende, Italy;
| | - Carmela Conidi
- Institute on Membrane Technology, ITM-CNR, Via P. Bucci, 17/C, 87036 Rende, Italy;
| | - Giuseppina De Luca
- Department of Chemistry & Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Rende, Italy;
- Correspondence: (G.D.L.); (A.C.)
| | - Alfredo Cassano
- Institute on Membrane Technology, ITM-CNR, Via P. Bucci, 17/C, 87036 Rende, Italy;
- Correspondence: (G.D.L.); (A.C.)
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17
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Wrasman CJ, Zhou C, Aitbekova A, Goodman ED, Cargnello M. Recycling of Solvent Allows for Multiple Rounds of Reproducible Nanoparticle Synthesis. J Am Chem Soc 2022; 144:11646-11655. [PMID: 35737471 DOI: 10.1021/jacs.2c02837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal nanoparticles have superior properties for a variety of applications. In many cases, the improved performance of metal nanoparticles is tightly correlated with their size and atomic composition. To date, colloidal synthesis is the most commonly used technique to produce metal nanoparticles. However, colloidal synthesis is currently a laboratory scale technique that has not been applied at larger scales. One of the greatest challenges facing large-scale colloidal synthesis of metal nanoparticles is the large volume of long-chain hydrocarbon solvents and surfactants needed for the synthesis, which can dominate the cost of nanoparticle production. In this work, we demonstrate a protocol, based on solvent distillation, which enables the reuse of colloidal nanoparticle synthesis surfactants and solvents for over 10 rounds of successive syntheses and demonstrates that pure solvents and surfactants are not necessarily needed to produce uniform nanocrystals. We show that this protocol can be applied to the production of a wide variety of mono- and bimetallic nanoparticles with reproducible sizes and compositions, which leads to reproducible performance as heterogeneous catalysts. A techno-economic assessment demonstrates the potential of this technique to greatly reduce the solvent-related costs of colloidal metal nanoparticle synthesis, which could contribute to its wider application at commercial scale.
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Affiliation(s)
- Cody J Wrasman
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Chengshuang Zhou
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Aisulu Aitbekova
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Emmett D Goodman
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
| | - Matteo Cargnello
- Department of Chemical Engineering and SUNCAT Center for Interface Science and Catalysis, Stanford University, Stanford, California 94305, United States
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18
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Kim J, Kim JY, Park ES. Pushing the Boundaries of Multicomponent Alloy Nanostructures: Hybrid Approach of Liquid Phase Separation and Selective Leaching Processes. Acc Chem Res 2022; 55:1821-1831. [PMID: 35713467 DOI: 10.1021/acs.accounts.2c00143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
ConspectusAlloying, or mixing of multiple metallic elements, is the classical way of novel materials development since the Bronze age. Increased numbers of principal elements expand the compositional space for alloy design vastly, leading to nearly endless possibilities of unexpected and unique materials properties. In contrast to bulk alloying processes represented by casting of molten metal mixtures, the fabrication of multicomponent alloy (MCA) nanostructures such as nanoparticles and nanofoams with more than three elements is often challenging, and a few methodologies for directly synthesizing alloy nanostructures up to denary systems have been suggested recently. However, forming alloy nanoparticles inside another metal matrix, instead of inside aqueous media in wet-chemical synthesis, is a fairly well understood strategy in terms of physical metallurgy. Extracting those alloy nanophases from the matrix could provide an alternative way to fabricate novel MCA nanostructures.In this Account, we describe a hybrid approach of metallurgical bottom-up and chemical top-down processes for fabricating MCA nanostructures including nanoparticles and nanofoams. The former utilizes a liquid-state phase separation process that resembles "oil and water" but occurs at the nanoscale due to thermodynamic mixing relations among alloying elements and a rapid quenching process. Thermodynamic prediction of the immiscible boundary in a temperature-composition space (miscibility gap) plays a key role in designing precursor alloys for MCA nanostructures. Selective leaching, the chemical top-down process for extracting the alloy nanostructures from the precursors, uses the chemical reactivity difference between the embedded nanostructures and the matrix phase against a certain chemical solution. We discuss here that the precise control of alloy composition and cooling rate based on thermodynamic assessments enables researchers to prepare phase-separating precursor alloys for fabricating both nanoparticles and nanofoams with a broad size range from a few nanometers to a few hundred nanometers. Depending on the alloy systems, the atomic structure of alloy nanostructures could be controlled from fully amorphous to nanocrystalline and even to quasicrystalline structure. We demonstrate how the different sizes of alloy nanostructures fabricated by a single hybrid procedure can be effectively exploited for investigating size-dependent physical properties. The future and potential research directions for this hybrid approach are also briefly discussed. This unique approach for fabricating nanosized alloys provides an extended methodology to discover novel metallic nanomaterials with promising properties in diverse compositional spaces of MCA systems.
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Affiliation(s)
- Jinwoo Kim
- Energy Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea
| | - Ji Young Kim
- Department of Materials Science and Engineering, Research Institute of Advanced Materials & Institute of Engineering Research, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun Soo Park
- Department of Materials Science and Engineering, Research Institute of Advanced Materials & Institute of Engineering Research, Seoul National University, Seoul 08826, Republic of Korea
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19
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Purification and Surface Modification of Chitosan-based Polyplexes Using Tangential Flow Filtration and Coating by Hyaluronic Acid. J Pharm Sci 2022; 111:2857-2866. [DOI: 10.1016/j.xphs.2022.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 11/16/2022]
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20
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Greytak AB, Abiodun SL, Burrell JM, Cook EN, Jayaweera NP, Islam MM, Shaker AE. Thermodynamics of nanocrystal–ligand binding through isothermal titration calorimetry. Chem Commun (Camb) 2022; 58:13037-13058. [DOI: 10.1039/d2cc05012a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Manipulations of nanocrystal (NC) surfaces have propelled the applications of colloidal NCs across various fields such as bioimaging, catalysis, electronics, and sensing applications.
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Affiliation(s)
- Andrew B. Greytak
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Sakiru L. Abiodun
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Jennii M. Burrell
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Emily N. Cook
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Nuwanthaka P. Jayaweera
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Md Moinul Islam
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
| | - Abdulla E Shaker
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
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21
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Melo L, Hui A, Kowal M, Boateng E, Poursorkh Z, Rocheron E, Wong J, Christy A, Grant E. Size Distributions of Gold Nanoparticles in Solution Measured by Single-Particle Mass Photometry. J Phys Chem B 2021; 125:12466-12475. [PMID: 34734725 DOI: 10.1021/acs.jpcb.1c05557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Specialized applications of nanoparticles often call for particular, well-characterized particle size distributions in solution, but this property can prove difficult to measure. High-throughput methods, such as dynamic light scattering, detect nanoparticles in solution with an efficiency that scales with diameter to the sixth power. This diminishes the accuracy of any determination that must span a range of particle sizes. The accurate classification of broadly distributed systems thus requires very large numbers of measurements. Mass-filtered particle-sensing techniques offer a better dynamic range but are labor-intensive and so have low throughput. Progress in many areas of nanotechnology requires a faster, lower-cost, and more accurate measure of particle size distributions, particularly for diameters smaller than 20 nm. Here, we present a tailored interferometric microscope system, combined with a high-speed image-processing strategy, optimized for real-time particle tracking that determines accurate size distributions in nominal 5, 10, and 15 nm colloidal gold nanoparticle systems by automatically sensing and classifying thousands of single particles sampled from solution at rates as high as 4000 particles per minute. We demonstrate this method by sensing the irreversible binding of gold nanoparticles to poly-d-lysine functionalized coverslips. Variations in the single-particle signal as a function of time and mass, calibrated by TEM, show clear evidence for the presence of diffusion-limited transport that most affects larger particles in solution.
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Affiliation(s)
- Luke Melo
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Angus Hui
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Matt Kowal
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Eric Boateng
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Zahra Poursorkh
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Edène Rocheron
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jake Wong
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Ashton Christy
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
| | - Edward Grant
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia V6T 1Z1, Canada
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22
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Mahle R, Kumbhakar P, Nayar D, Narayanan TN, Kumar Sadasivuni K, Tiwary CS, Banerjee R. Current advances in bio-fabricated quantum dots emphasising the study of mechanisms to diversify their catalytic and biomedical applications. Dalton Trans 2021; 50:14062-14080. [PMID: 34549221 DOI: 10.1039/d1dt01529j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Quantum dots (QDs), owing to their single atom-like electronic structure due to quantum confinement, are often referred to as artificial atoms. This unique physical property results in the diverse functions exhibited by QDs. A wide array of applications have been achieved by the surface functionalization of QDs, resulting in exceptional optical, antimicrobial, catalytic, cytotoxic and enzyme inhibition properties. Ordinarily, traditionally prepared QDs are subjected to post synthesis functionalization via a variety of methods, such as ligand exchange or covalent and non-covalent conjugation. Nevertheless, solvent toxicity, combined with the high temperature and pressure conditions during the preparation of QDs and the low product yield due to multiple steps in the functionalization, limit their overall use. This has driven scientists to investigate the development of greener, environmental friendly and cost-effective methods that can circumvent the complexity and strenuousness associated with traditional processes of bio-functionalization. In this review, a detailed analysis of the methods to bio-prepare pre-functionalized QDs, with elucidated mechanisms, and their application in the areas of catalysis and biomedical applications has been conducted. The environmental and health and safety aspects of the bio-derived QDs have been briefly discussed to unveil the future of nano-commercialization.
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Affiliation(s)
- Reddhy Mahle
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, India
| | - Partha Kumbhakar
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, India
| | - Divya Nayar
- Department of Materials Science and Engineering, Indian Institute of Technology Delhi, New Delhi, 110016, India
| | | | | | - Chandra Sekhar Tiwary
- Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, India
| | - Rintu Banerjee
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, India
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Tegenaw A, Sorial GA, Sahle-Demessie E. Effect of colloid-size copper-based pesticides and wood-preservatives against microbial activities of Gram-positive Bacillus species using five-day biochemical oxygen demand test. J Environ Sci (China) 2021; 105:71-80. [PMID: 34130841 PMCID: PMC8217730 DOI: 10.1016/j.jes.2020.12.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 05/03/2023]
Abstract
Copper-based pesticides and wood preservatives could end up in the environment during production, use, and end-of-life via different pathways that could cause unintended ecological and adverse health effects. This paper provides the effect of colloid-size Cu-based pesticides (CuPRO and Kocide), micronized Cu azole (MCA-1 and MCA-2) and alkaline Cu quaternary (ACQ) treated woods, Cu2+, Cu2+ spiked untreated wood (UTW), and CuCO3 solutions against Gram-positive Bacillus species using five-day biochemical oxygen demand (BOD5) standard test. The total Cu leached from MCA-1, MCA-2, and ACQ in Milli-Q water after 5 days were ~0.1, ~0.11, and ~0.64 g/kg of wood, respectively. However, the form of Cu leached from MCA woods was mostly ionic (> 90%). The total organic carbon (TOC) content of any tested wood (UTW/MCA-1/MCA-2/ACQ) was ~99% of its corresponding total carbon (TC) content, whereas the TOC of any tested wood sawdust exceeded that of its corresponding piece/block by > 300%. The dissolved oxygen (DO) consumption value in the presence of Cu2+, CuCO3, CuPRO, and Kocide solutions was significantly influenced by Cu particles/ions. However, the DO consumption value in the presence of UTW/MCA-1/MCA-2/ACQ woods was significantly influenced by organics leached from woods. On the other hand, the DO consumption of MCA sawdust was greater than (300%) that of MCA pieces/block. The findings of this study provide more insight into how organics leached from woods significantly reduce the toxic effects of Cu ions against Gram-positive Bacillus species.
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Affiliation(s)
- Ayenachew Tegenaw
- Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, 701 Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221-0012, USA.
| | - George A Sorial
- Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, 701 Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221-0012, USA
| | - Endalkachew Sahle-Demessie
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solution and Emergency Response, Cincinnati, OH 45268, USA
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24
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Abdul-Moqueet MM, Tovias L, Lopez P, Mayer KM. Synthesis and bioconjugation of alkanethiol-stabilized gold bipyramid nanoparticles. NANOTECHNOLOGY 2021; 32:10.1088/1361-6528/abe823. [PMID: 33607639 PMCID: PMC8374007 DOI: 10.1088/1361-6528/abe823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 02/19/2021] [Indexed: 05/03/2023]
Abstract
Gold bipyramid (GBP) nanoparticles are promising for a range of biomedical applications, including biosensing and surface-enhanced Raman spectroscopy, due to their favorable optical properties and ease of chemical functionalization. Here we report improved synthesis methods, including preparation of gold seed particles with an increased shelf life of ∼1 month, and preparation of GBPs with significantly shortened synthesis time (< 1 h). We also report methods for the functionalization and bioconjugation of the GBPs, including functionalization with alkanethiol self-assembled monolayers (SAMs) and bioconjugation with proteins via carbodiimide cross-linking. Binding of specific antibodies to the nanoparticle-bound proteins was subsequently observed via localized surface plasmon resonance sensing. Rabbit IgG and goat anti-Rabbit IgG antibodies were used as a model system for antibody-antigen interactions. As-synthesized, SAM-functionalized, and bioconjugated bipyramids were characterized using scanning electron microscopy, UV-vis spectroscopy, zeta potential, and dynamic light scattering.
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Affiliation(s)
- Mohammad M Abdul-Moqueet
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States of America
| | - Leeana Tovias
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States of America
| | - Priscilla Lopez
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States of America
| | - Kathryn M Mayer
- Department of Physics and Astronomy, University of Texas at San Antonio, San Antonio, TX, United States of America
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25
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Binuclear organometallic Pt(II) complexes as stabilizing ligands for gold and silver metal nanoparticles. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2020.120170] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Dhanasekar NN, Shirke A, Sakthivel N. Bioreduction of Gold Ions from Anisotropic to Isotropic Nanostructures by NADPH‐Dependent Reductase from
Bipolaris oryzae. ChemistrySelect 2020. [DOI: 10.1002/slct.202002385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Naresh N. Dhanasekar
- Department of Biotechnology Pondicherry University Puducherry 605014 India
- Present address: Department of Chemical and Biomolecular Engineering Johns Hopkins University 3400 N. Charles Street Baltimore, Maryland 21218 USA
| | - Anupama Shirke
- Department of Biotechnology Pondicherry University Puducherry 605014 India
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27
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Ondruš J, Hubatka F, Kulich P, Odehnalová N, Harabiš V, Hesko B, Sychra O, Široký P, Turánek J, Novobilský A. A novel approach to imaging engorged ticks: Micro-CT scanning of Ixodes ricinus fed on blood enriched with gold nanoparticles. Ticks Tick Borne Dis 2020; 12:101559. [PMID: 33137638 DOI: 10.1016/j.ttbdis.2020.101559] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/02/2020] [Accepted: 09/07/2020] [Indexed: 11/16/2022]
Abstract
Micro-computed tomography (micro-CT) is an exceptional imaging modality which is limited in visualizing soft biological tissues that need pre-examination contrasting steps, which can cause serious deformation to sizeable specimens like engorged ticks. The aim of this study was to develop a new technique to bypass these limitations and allow the imaging of fed ticks in their natural state. To accomplish this, adult Ixodes ricinus females were allowed to engorge in vitro on blood supplemented with PEGylated gold nanoparticles (PEG-AuNPs). In total, 73/120 females divided into 6 groups engorged on blood enriched with 0.07-2.16 mg PEG-AuNPs per ml of blood. No toxic effect was observed for any of the tested groups compared to the control group, in which 12/20 females engorged on clear blood. The ticks were scanned on a Bruker micro-CT SkyScan 1276. The mean radiodensity of the examined ticks exceeded 0 Hounsfield Units only in the case of the two groups with the highest concentration. The best contrast was observed in ticks engorged on blood with the highest tested concentration of 2.16 mg/mL PEG-AuNPs. In these ticks, the midgut and rectal sac were clearly visible. Also, the midgut lumen volume was computed from segmented image data. The reduction in midgut volume was documented during the egg development process. According to this pilot study, micro-CT of ticks engorged on blood supplemented with contrasting agents in vitro may reveal additional information regarding the engorged ticks' anatomy.
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Affiliation(s)
- Jaroslav Ondruš
- CEITEC - Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic.
| | - František Hubatka
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Pavel Kulich
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Nikola Odehnalová
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Vratislav Harabiš
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 616 00, Brno, Czech Republic
| | - Branislav Hesko
- Department of Biomedical Engineering, Faculty of Electrical Engineering and Communication, Brno University of Technology, 616 00, Brno, Czech Republic
| | - Oldřich Sychra
- Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Pavel Široký
- CEITEC - Central European Institute of Technology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic; Department of Biology and Wildlife Diseases, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences Brno, Palackého tř. 1946/1, 612 42, Brno, Czech Republic
| | - Jaroslav Turánek
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
| | - Adam Novobilský
- Department of Pharmacology and Toxicology, Veterinary Research Institute, Hudcova 296/70, 621 00, Brno, Czech Republic
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28
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Alsamhary KI. Eco-friendly synthesis of silver nanoparticles by Bacillus subtilis and their antibacterial activity. Saudi J Biol Sci 2020; 27:2185-2191. [PMID: 32714045 PMCID: PMC7376129 DOI: 10.1016/j.sjbs.2020.04.026] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 03/29/2020] [Accepted: 04/15/2020] [Indexed: 11/27/2022] Open
Abstract
Bacillus subtilis was used for biogenic of silver nanoparticles. Characterization of the prepared silver nanoparticles was done by UV-Vis spectroscopy, Transmission Electron Microscopy (TEM), and Fourier Transform Infrared Spectroscopy (FT-IR). The particle size of the prepared nanoparticles ranges from 3 to 20 nm with spherical or roughly spherical forms. The antimicrobial efficacy of the produced nanoparticles was investigated against five strains of multidrug resistant microorganisms including: Staphylococcus aureus (MRSA), Staphylococcu s epidermidis, Klebsiella. pneumoniae, Escherichia coli and Candida albicans tested as yeast. During this study, the minimum inhibitory concentrations (MICs) and the minimum lethal concentrations (MLCs) of synthesized silver nanoparticles were detected using selected strains of the genus Bacillus by a broth dilution method. The rate of MIC of the prepared silver nano-particles versus the investigated clinical isolates exhibit a massive anti-microbial efficacy; (230 µgml-1) for MRSA; 180 for Staphylococcus epidermidis, 200 for Escherichia coli and 100 µgml-1 for Candida albicans. On the other hand, the lowest anti-microbial efficacy (300 µgml-1) was appeared for Klebsiella pneumonia. The obtained results demonstrated the effectiveness of the biogenic nanoparticles and the possibility of using them as a new method in combating infectious diseases.
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Affiliation(s)
- Khawla Ibrahim Alsamhary
- Department of Biology, College of Science and Humanities in Al-Kharj , Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia
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29
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Tegenaw A, Sorial GA, Sahle-Demessie E, Han C. Role of water chemistry on stability, aggregation, and dissolution of uncoated and carbon-coated copper nanoparticles. ENVIRONMENTAL RESEARCH 2020; 187:109700. [PMID: 32480027 PMCID: PMC8573777 DOI: 10.1016/j.envres.2020.109700] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 04/21/2020] [Accepted: 05/18/2020] [Indexed: 06/11/2023]
Abstract
Intentional or accidental release of copper nanoparticles (Cu-NPs) from consumer products during manufacturing, use, and end-of-life management could pose health and ecological risks. This paper presents a detailed study on the role of water chemistry on the fate of uncoated and carbon-coated Cu-NPs dispersed in aqueous cetyltrimethylammonium bromide (CTAB) surfactant in the presence and absence of humic acids (HAs). A range of water chemistry and HAs had minimum impact on hydrodynamic diameter and zeta-potential values of uncoated and carbon-coated Cu-NPs. The water pH significantly (p < 0.001) affected the aggregation of uncoated Cu-NPs unlike that of carbon-coated Cu-NPs; however, the presence of HAs increased the stability of uncoated Cu-NPs. Although CTAB is considered as an efficient dispersant to stabilize Cu-NPs, the effect descended with time for uncoated Cu-NPs. The dissolution of Cu over time decreased with increasing pH for both uncoated (0.5-50% weight) and carbon-coated (0.5-40% weight) Cu-NPs. However, carbon-coated Cu-NPs exhibited significant dissolution (p < 0.001) at neutral pH than uncoated Cu-NPs may be due to the additional carbon it acquired during coating. Increasing HAs concentration from 0 to 15 mg L-1 at pH 5.5 inhibited aggregations but enhanced dissolution of the uncoated and carbon-coated Cu-NPs. These findings inform risk analysis of Cu-NPs including how Cu-NPs fate, mobility and bioavailability are modulated by particles coating and dispersant, HAs presence, water chemistry and exposure time in dispersion media.
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Affiliation(s)
- Ayenachew Tegenaw
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, 701 Engineering Research Center, 2901 Woodside Drive P.O. Box 210012, Cincinnati, OH, 45221-0012, United States
| | - George A Sorial
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, 701 Engineering Research Center, 2901 Woodside Drive P.O. Box 210012, Cincinnati, OH, 45221-0012, United States.
| | - Endalkachew Sahle-Demessie
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solution and Emergency Response, 26 W. Martin Luther Drive, Cincinnati, OH, 45268, United States
| | - Changseok Han
- Department of Environmental Engineering, College of Engineering, INHA University, 100 Inharo, Nam-gu Incheon, 22212, South Korea
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30
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Kulu I, Huang R, Kalyanaraman B, Rotello VM. A modified and simplified method for purification of gold nanoparticles. MethodsX 2020; 7:100896. [PMID: 32405465 PMCID: PMC7210451 DOI: 10.1016/j.mex.2020.100896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/07/2020] [Indexed: 10/28/2022] Open
Abstract
2 nm gold nanoparticles (AuNPs) have promising applications within drug and protein delivery, bioimaging, and biosensing. By performing ligand place-exchange reactions, AuNPs protected with alkanethiolate ligands can be functionalized to regulate their behaviors. In this reaction, a new ligand is incorporated by mixing a thiol with the AuNPs. To remove the excess new ligand as well as the displaced thiolate, dialysis has previously been the most widely used method. However, this purification method is time-consuming and fails to remove unwanted thiols completely. In this study, we describe a fast and efficient procedure to purify AuNP aqueous solution through liquid-liquid extraction using dichloromethane.•We demonstrate a facile way to purify AuNPs after ligand place-exchange reactions through liquid-liquid extraction.•Liquid-liquid extraction is a simple, inexpensive and efficient method for AuNP purification.•This protocol enables us to completely purify AuNPs in a few hours and can be used as a much quicker and more scaleable valid alternative to dialysis.
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Affiliation(s)
- Irem Kulu
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA, 01003, United States.,Department of Chemistry, Faculty of Science, Gebze Technical University,41400 Gebze, Kocaeli, Turkey
| | - Rui Huang
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA, 01003, United States
| | - Bhavna Kalyanaraman
- School of Chemical and Biotechnology, Sastra Deemed University, 613 401 Thanjavur, Tamil Nadu, India
| | - Vincent M Rotello
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA, 01003, United States
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31
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Daly CA, Allen C, Rozanov N, Chong G, Melby ES, Kuech TR, Lohse SE, Murphy CJ, Pedersen JA, Hernandez R. Surface Coating Structure and Its Interaction with Cytochrome c in EG 6-Coated Nanoparticles Varies with Surface Curvature. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:5030-5039. [PMID: 32302137 DOI: 10.1021/acs.langmuir.0c00681] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The composition, orientation, and conformation of proteins in biomolecular coronas acquired by nanoparticles in biological media contribute to how they are identified by a cell. While numerous studies have investigated protein composition in biomolecular coronas, relatively little detail is known about how the nanoparticle surface influences the orientation and conformation of the proteins associated with them. We previously showed that the peripheral membrane protein cytochrome c adopts preferred poses relative to negatively charged 3-mercaptopropionic acid (MPA)-gold nanoparticles (AuNPs). Here, we employ molecular dynamics simulations and complementary experiments to establish that cytochrome c also assumes preferred poses upon association with nanoparticles functionalized with an uncharged ligand, specifically ω-(1-mercaptounde-11-cyl)hexa(ethylene glycol) (EG6). We find that the display of the EG6 ligands is sensitive to the curvature of the surface-and, consequently, the effective diameter of the nearly spherical nanoparticle core-which in turn affects the preferred poses of cytochrome c.
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Affiliation(s)
- Clyde A Daly
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Caley Allen
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Nikita Rozanov
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Gene Chong
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Eric S Melby
- Environmental Chemistry and Technology Program, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Thomas R Kuech
- Environmental Chemistry and Technology Program, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Samuel E Lohse
- Department of Chemistry, University of Illinois-Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois-Urbana-Champaign, Urbana, Illinois 61801, United States
| | - Joel A Pedersen
- Environmental Chemistry and Technology Program, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
- Departments of Soil Science, Chemistry, and Civil & Environmental Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Rigoberto Hernandez
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Departments of Chemical & Biomolecular Engineering and Materials Science and Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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32
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Ramadurai M, Vinitha P, Prabhu P, Komathi S, Suresh Babu R. Size-Dependent Photoluminescence from Thiolate-Protected Water-Soluble Cobalt Nanoclusters. ChemistrySelect 2020. [DOI: 10.1002/slct.201903751] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Murugan Ramadurai
- Department of Physical Chemistry, School of Chemical Sciences; University of Madras, Guindy Campus; Chennai, Tamilnadu 600 025
| | - Packirisamy Vinitha
- Department of Physical Chemistry, School of Chemical Sciences; University of Madras, Guindy Campus; Chennai, Tamilnadu 600 025
| | - Pandurangan Prabhu
- Department of Physical Chemistry, School of Chemical Sciences; University of Madras, Guindy Campus; Chennai, Tamilnadu 600 025
| | - ---Shanmugam Komathi
- Department of Physical Chemistry, School of Chemical Sciences; University of Madras, Guindy Campus; Chennai, Tamilnadu 600 025
| | - Rajendran Suresh Babu
- Laboratory of Experimental and Applied Physics; Centro Federal de Educação Tecnológica Celso Suckow da Fonseca; Rio de Janeiro 20271 110 Brazil
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Tegenaw A, Sorial GA, Sahle-Demessie E, Han C. Influence of water chemistry on colloid-size Cu-based pesticides particles: A case of Cu(OH) 2 commercial fungicide/bactericide. CHEMOSPHERE 2020; 239:124699. [PMID: 31494324 DOI: 10.1016/j.chemosphere.2019.124699] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 06/10/2023]
Abstract
The intensive, widespread, and ever-increasing applications of Cu-based pesticides in agriculture could potentially increase environmental exposures via different routes. Unlike ionic/bulk forms, the fate, transport, and toxicity of colloid-size Cu-based pesticides are not well studied. This paper provides evaluation outcomes of granule and dispersion characterizations, stability, and dissolution of colloid-size particles of Cu(OH)2 commercial pesticide product at a range of water chemistry. The evaluated product contained about 35% weight of metallic Cu equivalent and Cu(OH)2 particles with sizes < 1 μm of which a fraction of nanoscale particles exist. The presence of Ca2+ at ionic strengths of >0.01 M and 0.001-0.2 M significantly influenced (p < 0.001) particle size (PS) and ζ-potential values, respectively at all investigated pH values. Cu dissolution at pH 5.5 was significant (p < 0.001) and exceeded Cu dissolutions at pH 7.0 by 87-90% and at pH 8.5 by 87-95% in all dispersions. The order of Cu dissolution was pH 5.5 > pH 7.0 > pH 8.5 in all dispersions. Cu dissolution was relatively reduced by 53% by increasing HA from 0 to 5 mg L-1 and enhanced by 55% by increasing HA from 5 to 15 mg L-1, however, the overall Cu dissolution was decreased by 27% by increasing HA from 0 to 15 mg L-1. Thus, HAs reduced the dissolution of Cu at pH < 7. The findings provide an insight into how water chemistry influences the fate and transport of colloid-size Cu-based pesticides particles.
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Affiliation(s)
- Ayenachew Tegenaw
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, 701 Engineering Research Center, 2901 Woodside Drive P.O. Box 210012, Cincinnati, OH, 45221-0012, United States
| | - George A Sorial
- Environmental Engineering Program, Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, University of Cincinnati, 701 Engineering Research Center, 2901 Woodside Drive P.O. Box 210012, Cincinnati, OH, 45221-0012, United States.
| | - Endalkachew Sahle-Demessie
- U.S. Environmental Protection Agency, Office of Research and Development, National Risk Management Research Laboratory, 26 W. Martin Luther Drive, Cincinnati, OH, 45268, United States
| | - Changseok Han
- Department of Environmental Engineering, College of Engineering, INHA University, 100 Inharo, Nam-gu Incheon, 22212, South Korea
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Dey K, Kunjattu H. S, Chahande AM, Banerjee R. Nanoparticle Size‐Fractionation through Self‐Standing Porous Covalent Organic Framework Films. Angew Chem Int Ed Engl 2019; 59:1161-1165. [DOI: 10.1002/anie.201912381] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 12/25/2022]
Affiliation(s)
- Kaushik Dey
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur Campus Mohanpur 741246 India
| | - Shebeeb Kunjattu H.
- Polymer Science and Engineering Division CSIR National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Anurag M. Chahande
- Catalysis and Inorganic Chemistry Division CSIR National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Rahul Banerjee
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur Campus Mohanpur 741246 India
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35
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Dey K, Kunjattu H. S, Chahande AM, Banerjee R. Nanoparticle Size‐Fractionation through Self‐Standing Porous Covalent Organic Framework Films. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201912381] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Kaushik Dey
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur Campus Mohanpur 741246 India
| | - Shebeeb Kunjattu H.
- Polymer Science and Engineering Division CSIR National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Anurag M. Chahande
- Catalysis and Inorganic Chemistry Division CSIR National Chemical Laboratory Dr. Homi Bhabha Road Pune 411008 India
| | - Rahul Banerjee
- Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Kolkata Mohanpur Campus Mohanpur 741246 India
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36
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Ang EH, Velioğlu S, Chew JW. Tunable affinity separation enables ultrafast solvent permeation through layered double hydroxide membranes. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117318] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Dehghani M, Lucas K, Flax J, McGrath J, Gaborski T. Tangential flow microfluidics for the capture and release of nanoparticles and extracellular vesicles on conventional and ultrathin membranes. ADVANCED MATERIALS TECHNOLOGIES 2019; 4:1900539. [PMID: 32395607 PMCID: PMC7212937 DOI: 10.1002/admt.201900539] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Indexed: 05/04/2023]
Abstract
Membranes have been used extensively for the purification and separation of biological species. A persistent challenge is the purification of species from concentrated feed solutions such as extracellular vesicles (EVs) from biological fluids. We investigated a new method to isolate micro- and nano-scale species termed tangential flow for analyte capture (TFAC), which is an extension of traditional tangential flow filtration (TFF). Initially, EV purification from plasma on ultrathin nanomembranes was compared between both normal flow filtration (NFF) and TFAC. NFF resulted in rapid formation of a protein cake which completely obscured any captured EVs and also prevented further transport across the membrane. On the other hand, TFAC showed capture of CD63 positive small EVs (sEVs) with minimal contamination. We explored the use of TFAC to capture target species over membrane pores, wash and then release in a physical process that does not rely upon affinity or chemical interactions. This process of TFAC was studied with model particles on both ultrathin nanomembranes and conventional thickness membranes (polycarbonate track-etch). Successful capture and release of model particles was observed using both membranes. Ultrathin nanomembranes showed higher efficiency of capture and release with significantly lower pressures indicating that ultrathin nanomembranes are well-suited for TFAC of delicate nanoscale particles such as EVs.
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Affiliation(s)
- Mehdi Dehghani
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, United States
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, United States
| | - Kilean Lucas
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, United States
| | - Jonathan Flax
- Department of Urology, University of Rochester Medical School, Rochester, NY, United States
| | - James McGrath
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, United States
| | - Thomas Gaborski
- Department of Microsystems Engineering, Rochester Institute of Technology, Rochester, NY, United States
- Department of Biomedical Engineering, University of Rochester, Rochester, NY, United States
- Department of Biomedical Engineering, Rochester Institute of Technology, Rochester, NY, United States
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38
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De Anda Villa M, Gaudin J, Amans D, Boudjada F, Bozek J, Evaristo Grisenti R, Lamour E, Laurens G, Macé S, Nicolas C, Papagiannouli I, Patanen M, Prigent C, Robert E, Steydli S, Trassinelli M, Vernhet D, Lévy A. Assessing the Surface Oxidation State of Free-Standing Gold Nanoparticles Produced by Laser Ablation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11859-11871. [PMID: 31453695 DOI: 10.1021/acs.langmuir.9b02159] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The surface chemistry of gold nanoparticles produced by the pulsed laser ablation in liquids method is investigated by X-ray photoelectron spectroscopy (XPS). The presence of surface oxide expected on these systems is investigated using synchrotron radiation in conditions close to their original state in solvent but free from substrate or solvent effects which could affect the interpretation of spectroscopic observations. For that purpose we performed the experiment on a controlled free-standing nanoparticle beam produced by combination of an atomizer and an aerodynamic lens system. These results are compared with those obtained by the standard situation of deposited nanoparticles on silicon substrate. An accurate analysis based on Bayesian statistics concludes that the existence of oxide in the free-standing conditions cannot be solely confirmed by the recorded core-level 4f spectra. If present, our data indicate an upper limit of 2.15 ± 0.68% of oxide. However, a higher credence to the hypothesis of its existence is brought by the structureless valence profile of the free-standing beam. Moreover, the cross-comparison with the deposited nanoparticles case clearly evidences an important misleading substrate effect. Experiment with free-standing nanoparticles is then demonstrated to be the right way to further investigate oxidation states on Au nanoparticles.
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Affiliation(s)
- Manuel De Anda Villa
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Jérôme Gaudin
- CNRS, CEA, CELIA (Centre Lasers Intenses et Applications) , Univeristy of Bordeaux , UMR5107 , F-33405 Talence , France
| | - David Amans
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière , Univeristy of Lyon , F-69622 Villeurbanne , France
| | - Fahima Boudjada
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière , Univeristy of Lyon , F-69622 Villeurbanne , France
| | - John Bozek
- L'Orme des Merisiers , Synchrotron SOLEIL , Saint-Aubin, BP 48 , F-91192 Gif-sur-Yvette Cedex , France
| | - Robert Evaristo Grisenti
- GSI Helmholtzzentrum für Schwerionenforschung GmbH , Planckstrasse 1 , 64291 Darmstadt , Germany
- Institut für Kernphysik , J. W. Goethe-Universität , Max-von-Laue-strasse 1 , 60438 Frankfurt am Main , Germany
| | - Emily Lamour
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Gaétan Laurens
- Université Claude Bernard Lyon 1, UMR5306 CNRS, Institut Lumière Matière , Univeristy of Lyon , F-69622 Villeurbanne , France
| | - Stéphane Macé
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Christophe Nicolas
- L'Orme des Merisiers , Synchrotron SOLEIL , Saint-Aubin, BP 48 , F-91192 Gif-sur-Yvette Cedex , France
| | - Irene Papagiannouli
- CNRS, CEA, CELIA (Centre Lasers Intenses et Applications) , Univeristy of Bordeaux , UMR5107 , F-33405 Talence , France
| | - Minna Patanen
- Nano and Molecular Systems Research Unit, Faculty of Science , University of Oulu , P.O. Box 3000, FI-90014 Oulu , Finland
| | - Christophe Prigent
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Emmanuel Robert
- L'Orme des Merisiers , Synchrotron SOLEIL , Saint-Aubin, BP 48 , F-91192 Gif-sur-Yvette Cedex , France
| | - Sébastien Steydli
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Martino Trassinelli
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Dominique Vernhet
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
| | - Anna Lévy
- Institut des Nanosciences de Paris , Sorbonne Université-Pierre et Marie Curie , CNRS UMR7588 , 75005 Paris , France
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39
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Luo G, Du L, Wang Y, Wang K. Manipulation and Control of Structure and Size of Inorganic Nanomaterials in Microchemical Systems. Chem Eng Technol 2019. [DOI: 10.1002/ceat.201900067] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Guangsheng Luo
- Tsinghua UniversityThe State Key Lab of Chemical EngineeringDepartment of Chemical Engineering 1 Tsinghua Yuan Street 100084 Beijing China
| | - Le Du
- Tsinghua UniversityThe State Key Lab of Chemical EngineeringDepartment of Chemical Engineering 1 Tsinghua Yuan Street 100084 Beijing China
- Beijing University of Chemical TechnologyThe State Key Laboratory of Chemical Resource EngineeringBeijing Key Laboratory of Membrane Science and Technology 3 Ring Rd East 100029 Beijing China
| | - Yujun Wang
- Tsinghua UniversityThe State Key Lab of Chemical EngineeringDepartment of Chemical Engineering 1 Tsinghua Yuan Street 100084 Beijing China
| | - Kai Wang
- Tsinghua UniversityThe State Key Lab of Chemical EngineeringDepartment of Chemical Engineering 1 Tsinghua Yuan Street 100084 Beijing China
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40
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Yang X, Yang Z, Tang F, Xu J, Zhang M, Choi MMF. Structural and optical properties of penicillamine-protected gold nanocluster fractions separated by sequential size-selective fractionation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:955-966. [PMID: 31165022 PMCID: PMC6541327 DOI: 10.3762/bjnano.10.96] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2019] [Accepted: 04/03/2019] [Indexed: 06/09/2023]
Abstract
Polydisperse water-soluble gold nanoclusters (AuNCs) protected by penicillamine have been synthesized in this work. The sequential size-selective precipitation (SSSP) technique has been applied for the size fractionation and purification of the monolayer-protected AuNCs. Through continuously adding acetone to a crude AuNC aqueous solution and controlling the volume percentage of acetone, we successfully separated the polydisperse AuNCs with diameters ranging from 0.5 to 5.4 nm into four different fractions sequentially. High-resolution transmission electron microscopy (HRTEM) shows that the four fractions are well-dispersed spherical particles of diameter 3.0 ± 0.6, 2.3 ± 0.5, 1.7 ± 0.4, and 1.2 ± 0.4 nm. Proton nuclear magnetic resonance spectroscopy suggests that disulfide, excess ligands and gold(I) complexes were removed from the AuNCs fractions. These results demonstrate the considerable potential of the SSSP technique for size-based separation and purification of AuNCs, achieving not only the isolation of larger nanoclusters (NCs) from small NCs in a continuous fashion, but also for the removal of small-molecule impurities. Based on the results from the mass spectrometry and thermogravimetric analysis, the average composition of the four fractions can be represented by Au38(SR)18, Au28(SR)15, Au18(SR)12, and Au11(SR)8, respectively. This indicates that the SSSP separation is mainly dependent on the core size and the ratio of Au atoms to ligands of AuNCs. X-ray photoelectron spectroscopy (XPS) has also been applied to observe the molecular dependence on the gold and sulfur chemical state of organosulfur monolayers of the fractions. The photoluminescence spectra of these AuNCs in the range of 900-790 nm was investigated at room temperature. The results show that the peak emission energy of the size-selected AuNCs undergoes a blue shift when the size is decreased, which can be attributed to the quantum confinement effect.
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Affiliation(s)
- Xiupei Yang
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, China
| | - Zhengli Yang
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, China
| | - Fenglin Tang
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, China
| | - Jing Xu
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, China
| | - Maoxue Zhang
- College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, China
| | - Martin M F Choi
- Partner State Key Laboratory of Environmental and Biological Analysis, and Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong SAR, China
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41
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Dong Y, Chen S, Lu X, Lu Q. High-Level Extraction of Recyclable Nanocatalysts by Using Polyphosphazene Microparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:5168-5175. [PMID: 30908060 DOI: 10.1021/acs.langmuir.9b00258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Improper disposal of metal nanoparticles has caused serious environmental and pathological problems because of their active nanotoxicity. Therefore, there is an urgent need to develop a strategy for efficiently removing redundant metal nanoparticles from water, while also permitting restoration of their catalytic activities to those of pristine particles for reapplication. Herein, we present intrinsically nitrogen-rich cross-linked polyphosphazene microparticles to capture silver nanoparticles (AgNPs) from aqueous media by a simple one-step method. The described microparticles exhibit an outstanding adsorption capacity for AgNPs of approximately 59.35 mg/g, exceeding those of other adsorbents. The adsorption kinetics of AgNPs on these microparticles obeyed a pseudo-second-order kinetic model. More importantly, the recovered AgNPs maintained good catalytic activity in the reduction of methylene blue by sodium borohydride. Based on their simple preparation, high adsorption efficiency, and nondestructive effect on the catalytic activity of the recovered AgNPs, the described polyphosphazene microparticles display promising potential for the removal and recovery of AgNPs from water.
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Affiliation(s)
- Yuan Dong
- School of Chemistry and Chemical Engineering, The State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Shuangshuang Chen
- School of Chemical Science and Engineering , Tongji University , Shanghai 200092 , China
| | - Xuemin Lu
- School of Chemistry and Chemical Engineering, The State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Qinghua Lu
- School of Chemistry and Chemical Engineering, The State Key Laboratory of Metal Matrix Composites , Shanghai Jiao Tong University , Shanghai 200240 , China
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42
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Truong L, Zaikova T, Baldock BL, Balik-Meisner M, To K, Reif DM, Kennedy ZC, Hutchison JE, Tanguay RL. Systematic determination of the relationship between nanoparticle core diameter and toxicity for a series of structurally analogous gold nanoparticles in zebrafish. Nanotoxicology 2019; 13:879-893. [PMID: 30938251 DOI: 10.1080/17435390.2019.1592259] [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: 10/27/2022]
Abstract
Predictive models for the impact of nanomaterials on biological systems remain elusive. Although there is agreement that physicochemical properties (particle diameter, shape, surface chemistry, and core material) influence toxicity, there are limited and often contradictory, data relating structure to toxicity, even for core diameter. Given the importance of size in determining nanoscale properties, we aimed to address this data gap by examining the biological effects of a defined series of gold nanoparticles (AuNPs) on zebrafish embryos. Five AuNPs samples with narrowly spaced core diameters (0.8-5.8 nm) were synthesized and functionalized with positively charged N,N,N-trimethylammonium ethanethiol (TMAT) ligands. We assessed the bioactivity of these NPs in a high-throughput developmental zebrafish assay at eight concentrations (0.5-50 µg/mL) and observed core diameter-dependent bioactivity. The smaller diameter AuNPs were the most toxic when expressing exposures based on an equal mass. However, when expressing exposures based on total surface area, toxicity was independent of the core diameter. When holding the number of nanoparticles per volume constant (at 6.71 × 1013/mL) in the exposure medium across AuNPs diameters, only the 5.8 nm AuNPs exhibited toxic effects. Under these exposure conditions, the uptake of AuNPs in zebrafish was only weakly associated with core diameter, suggesting that differential uptake of TMAT-AuNPs was not responsible for toxicity associated with the 5.8 nm core diameter. Our results indicate that larger NPs may be the most toxic on a per particle basis and highlight the importance of using particle number and surface area, in addition to mass, when evaluating the size-dependent bioactivity of NPs.
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Affiliation(s)
- Lisa Truong
- Department of Environmental and Molecular Toxicology, Oregon State University , Corvallis , OR , USA
| | - Tatiana Zaikova
- Department of Chemistry and Biochemistry, University of Oregon , Eugene , OR , USA
| | - Brandi L Baldock
- Department of Chemistry and Biochemistry, Merrimack College , North Andover , MA , USA
| | - Michele Balik-Meisner
- Bioinformatics Research Center, North Carolina State University , Raleigh , NC , USA
| | - Kimberly To
- Bioinformatics Research Center, North Carolina State University , Raleigh , NC , USA
| | - David M Reif
- Bioinformatics Research Center, North Carolina State University , Raleigh , NC , USA
| | - Zachary C Kennedy
- Pacific Northwest National Laboratory, National Security Directorate , Richland , WA , USA
| | - James E Hutchison
- Department of Chemistry and Biochemistry, University of Oregon , Eugene , OR , USA
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology, Oregon State University , Corvallis , OR , USA
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43
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Makabe R, Akamatsu K, Nakao SI. Effect of electrolytes on stable permeation of submicron silica particles through microfiltration membranes. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.064] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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44
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Ding J, Chen G, Chen G, Guo M. One-Pot Synthesis of Epirubicin-Capped Silver Nanoparticles and Their Anticancer Activity against Hep G2 Cells. Pharmaceutics 2019; 11:pharmaceutics11030123. [PMID: 30884757 PMCID: PMC6470558 DOI: 10.3390/pharmaceutics11030123] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/11/2019] [Accepted: 03/12/2019] [Indexed: 12/03/2022] Open
Abstract
Epirubicin-capped silver nanoparticles (NPs) were synthesized through a one-pot method by using epirubicin as both the functional drug and the reducing agent of Ag+ to Ag0. The preparation process was accomplished in 1 h. In addition, the obtained epirubicin-capped silver nanoparticle was characterized by transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and infrared spectroscopy. The results showed that a layer of polymer epirubicin had formed around the silver nanoparticle, which was 30-40 nm in diameter. We further investigated the antitumor activity of the prepared epirubicin-capped silver nanoparticle, and the half maximal inhibitory concentration (IC50) against Hep G2 cells was 1.92 μg/mL, indicating a good antitumor property of the nanoparticle at low dosage.
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Affiliation(s)
- Jun Ding
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China.
| | - Guilin Chen
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
| | - Guofang Chen
- Chemistry Department, St. John's University, Queens, New York, NY 11439, USA.
| | - Mingquan Guo
- Key Laboratory of Plant Germplasm Enhancement & Specialty Agriculture, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China.
- Sino-Africa Joint Research Center, Chinese Academy of Sciences, Wuhan 430074, China.
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45
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Chen H, Ruckenstein E. Nanoseparation of Nanoparticle Mixtures with Similar Surface Structures through a Facile Two-Step Approach. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b05819] [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]
Affiliation(s)
- Houyang Chen
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, United States
| | - Eli Ruckenstein
- Department of Chemical and Biological Engineering, University at Buffalo, The State University of New York, Buffalo, New York 14260-4200, United States
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46
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47
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Melby ES, Allen C, Foreman-Ortiz IU, Caudill ER, Kuech TR, Vartanian AM, Zhang X, Murphy CJ, Hernandez R, Pedersen JA. Peripheral Membrane Proteins Facilitate Nanoparticle Binding at Lipid Bilayer Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10793-10805. [PMID: 30102857 DOI: 10.1021/acs.langmuir.8b02060] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Molecular understanding of the impact of nanomaterials on cell membranes is critical for the prediction of effects that span environmental exposures to nanoenabled therapies. Experimental and computational studies employing phospholipid bilayers as model systems for membranes have yielded important insights but lack the biomolecular complexity of actual membranes. Here, we increase model membrane complexity by incorporating the peripheral membrane protein cytochrome c and studying the interactions of the resulting membrane systems with two types of anionic nanoparticles. Experimental and computational studies reveal that the extent of cytochrome c binding to supported lipid bilayers depends on anionic phospholipid number density and headgroup chemistry. Gold nanoparticles functionalized with short, anionic ligands or wrapped with an anionic polymer do not interact with silica-supported bilayers composed solely of phospholipids. Strikingly, when cytochrome c was bound to these bilayers, nanoparticles functionalized with short anionic ligands attached to model biomembranes in amounts proportional to the number of bound cytochrome c molecules. In contrast, anionic polymer-wrapped gold nanoparticles appeared to remove cytochrome c from supported lipid bilayers in a manner inversely proportional to the strength of cytochrome c binding to the bilayer; this reflects the removal of a weakly bound pool of cytochrome c, as suggested by molecular dynamics simulations. These results highlight the importance of the surface chemistry of both the nanoparticle and the membrane in predicting nano-bio interactions.
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Affiliation(s)
- Eric S Melby
- Environmental Chemistry and Technology Program , University of Wisconsin-Madison , 1525 Observatory Drive , Madison , Wisconsin 53706 , United States
- Environmental and Molecular Sciences Laboratory , Pacific Northwest National Laboratory , 3335 Innovation Boulevard , Richland , Washington 99354 , United States
| | - Caley Allen
- Department of Chemistry , Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | - Isabel U Foreman-Ortiz
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Emily R Caudill
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
| | - Thomas R Kuech
- Environmental Chemistry and Technology Program , University of Wisconsin-Madison , 1525 Observatory Drive , Madison , Wisconsin 53706 , United States
| | - Ariane M Vartanian
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Xi Zhang
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Catherine J Murphy
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Rigoberto Hernandez
- Department of Chemistry , Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | - Joel A Pedersen
- Environmental Chemistry and Technology Program , University of Wisconsin-Madison , 1525 Observatory Drive , Madison , Wisconsin 53706 , United States
- Department of Chemistry , University of Wisconsin-Madison , 1101 University Avenue , Madison , Wisconsin 53706 , United States
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48
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Huang H, du Toit H, Panariello L, Mazzei L, Gavriilidis A. Continuous synthesis of gold nanoparticles in micro- and millifluidic systems. PHYSICAL SCIENCES REVIEWS 2018. [DOI: 10.1515/psr-2017-0119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Gold nanomaterials have diverse applications ranging from healthcare and nanomedicine to analytical sciences and catalysis. Microfluidic and millifluidic reactors offer multiple advantages for their synthesis and manufacturing, including controlled or fast mixing, accurate reaction time control and excellent heat transfer. These advantages are demonstrated by reviewing gold nanoparticle synthesis strategies in flow devices. However, there are still challenges to be resolved, such as reactor fouling, particularly if robust manufacturing processes are to be developed to achieve the desired targets in terms of nanoparticle size, size distribution, surface properties, process throughput and robustness. Solutions to these challenges are more effective through a coordinated approach from chemists, engineers and physicists, which has at its core a qualitative and quantitative understanding of the synthesis processes and reactor operation. This is important as nanoparticle synthesis is complex, encompassing multiple phenomena interacting with each other, often taking place at short timescales. The proposed methodology for the development of reactors and processes is generic and contains various interconnected considerations. It aims to be a starting point towards rigorous design procedures for the robust and reproducible continuous flow synthesis of gold nanoparticles.
Graphical Abstract:
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Affiliation(s)
- He Huang
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Hendrik du Toit
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Luca Panariello
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Luca Mazzei
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
| | - Asterios Gavriilidis
- Department of Chemical Engineering , University College London , Torrington Place , London WC1E 7JE , UK
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49
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Nan F, Yan Z. Sorting Metal Nanoparticles with Dynamic and Tunable Optical Driven Forces. NANO LETTERS 2018; 18:4500-4505. [PMID: 29939760 DOI: 10.1021/acs.nanolett.8b01672] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Precise sorting of colloidal nanoparticles is a challenging yet necessary task for size-specific applications of nanoparticles in nanophotonics and biochemistry. Here we present a new strategy for all-optical sorting of metal nanoparticles with dynamic and tunable optical driven forces generated by phase gradients of light. Size-dependent optical forces arising from the phase gradients of optical line traps can drive nanoparticles of different sizes with different velocities in solution, leading to their separation along the line traps. By using a sequential combination of optical lines to create differential trapping potentials, we realize precise sorting of silver and gold nanoparticles in the diameter range of 70-150 nm with a resolution down to 10 nm. Separation of the nanoparticles agrees with the analysis of optical forces acting on them and with simulations of their kinetic motions. The results provide new insights into all-optical nanoparticle manipulation and separation and reveal that there is still room to sort smaller nanoparticle with nanometer precision using dynamic phase-gradient forces.
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Affiliation(s)
- Fan Nan
- Department of Chemical and Biomolecular Engineering , Clarkson University , Potsdam , New York 13699 , United States
| | - Zijie Yan
- Department of Chemical and Biomolecular Engineering , Clarkson University , Potsdam , New York 13699 , United States
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50
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Ginzburg AL, Truong L, Tanguay RL, Hutchison JE. Synergistic Toxicity Produced by Mixtures of Biocompatible Gold Nanoparticles and Widely Used Surfactants. ACS NANO 2018; 12:5312-5322. [PMID: 29697962 DOI: 10.1021/acsnano.8b00036] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Nanoparticle safety is usually determined using solutions of individual particles that are free of additives. However, the size-dependent properties of nanoparticles can be readily altered through interactions with other components in a mixture. In applications, nanoparticles are commonly combined with surfactants or other additives to increase dispersion or to enhance product performance. Surfactants might also influence the biological activity of nanoparticles; however, little is known about such effects. We investigated the influence of surfactants on nanoparticle biocompatibility by studying mixtures of ligand-stabilized gold nanoparticles and Polysorbate 20 in embryonic zebrafish. These mixtures produced synergistic toxicity at concentrations where the individual components were benign. We examined the structural basis for this synergy using solution-phase analytical techniques. Spectroscopic and X-ray scattering studies suggest that the Polysorbate 20 does not affect the nanoparticle core structure. DOSY NMR showed that the hydrodynamic size of the nanoparticles increased, suggesting that Polysorbate 20 assembles on the nanoparticle surfaces. Mass spectrometry showed that these assemblies have both increased uptake and increased toxicity in zebrafish, as compared to the gold nanoparticles alone. We probed the generality of this synergy by performing toxicity assays with two other common surfactants, Polysorbate 80 and sodium dodecyl sulfate. These surfactants also caused synergistic toxicity, although the extent and time frame of the response depends upon the surfactant structure. These results demonstrate a need for additional, foundational studies to understand the effects of surfactants on nanoparticle biocompatibility and challenge traditional models of nanoparticle safety where the matrix is assumed to have only additive effects on nanoparticle toxicity.
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Affiliation(s)
- Aurora L Ginzburg
- Department of Chemistry and Biochemistry , University of Oregon , Eugene , Oregon 97403 , United States
| | - Lisa Truong
- Department of Environmental and Molecular Toxicology and the Sinnhuber Aquatic Research Laboratory , Oregon State University , Corvallis , Oregon 97333 , United States
| | - Robert L Tanguay
- Department of Environmental and Molecular Toxicology and the Sinnhuber Aquatic Research Laboratory , Oregon State University , Corvallis , Oregon 97333 , United States
| | - James E Hutchison
- Department of Chemistry and Biochemistry , University of Oregon , Eugene , Oregon 97403 , United States
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