1
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Nguyenova HY, Hubalek Kalbacova M, Dendisova M, Sikorova M, Jarolimkova J, Kolska Z, Ulrychova L, Weber J, Reznickova A. Stability and biological response of PEGylated gold nanoparticles. Heliyon 2024; 10:e30601. [PMID: 38742054 PMCID: PMC11089375 DOI: 10.1016/j.heliyon.2024.e30601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 05/16/2024] Open
Abstract
Stability and cytotoxicity of PEGylated Au NPs is crucial for biomedical application. In this study, we have focused on thermal stability of PEGylated Au NPs at 4 and 37 °C and after sterilization in autoclave. Gold nanoparticles were prepared by direct sputtering of gold into PEG and PEG-NH2. Transmission electron microscopy revealed that NPs exhibit a spherical shape with average dimensions 3.8 nm for both AuNP_PEG and AuNP_PEG-NH2. The single LSPR band at wavelength of 509 nm also confirmed presence of spherical Au NPs in both cases. Moreover, according to UV-Vis spectra, the Au NPs were overall stable during aging or thermal stressing and even after sterilization in autoclave. Based on gel electrophoresis results, the higher density of functionalizing ligands and the higher stability is assumed on AuNP_PEG-NH2. Changes in concentration of gold did not occur after thermal stress or with aging. pH values have to be adjusted to be suitable for bioapplications - original pH values are either too alkaline (AuNP_PEG-NH2, pH 10) or too acidic (AuNP_PEG, pH 5). Cytotoxicity was tested on human osteoblasts and fibroblasts. Overall, both Au NPs have shown good cytocompatibility either freshly prepared or even after Au NPs' sterilization in the autoclave. Prepared Au NP dispersions were also examined for their antiviral activity, however no significant effect was observed. We have synthesized highly stable, non-cytotoxic PEGylated Au NPs, which are ready for preclinical testing.
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Affiliation(s)
- Hoang Yen Nguyenova
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28, Prague, Czech Republic
| | - Marie Hubalek Kalbacova
- Institute of Pathological Physiology, 1st Faculty of Medicine, Charles University, 128 53, Prague, Czech Republic
- Faculty of Health Studies, Technical University of Liberec, Liberec, Czech Republic
| | - Marcela Dendisova
- Department of Physical Chemistry, University of Chemistry and Technology Prague, 166 28, Prague, Czech Republic
| | - Miriama Sikorova
- Institute of Pathological Physiology, 1st Faculty of Medicine, Charles University, 128 53, Prague, Czech Republic
| | - Jaroslava Jarolimkova
- CENAB, Faculty of Science, J. E. Purkyne University, 400 96, Usti nad Labem, Czech Republic
| | - Zdenka Kolska
- CENAB, Faculty of Science, J. E. Purkyne University, 400 96, Usti nad Labem, Czech Republic
| | - Lucie Ulrychova
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, 166 10, Prague, Czech Republic
| | - Jan Weber
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Science, 166 10, Prague, Czech Republic
| | - Alena Reznickova
- Department of Solid State Engineering, University of Chemistry and Technology Prague, 166 28, Prague, Czech Republic
- CENAB, Faculty of Science, J. E. Purkyne University, 400 96, Usti nad Labem, Czech Republic
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2
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Kim HJ, Nayak BP, Zhang H, Ocko BM, Travesset A, Vaknin D, Mallapragada SK, Wang W. Two-dimensional assembly of gold nanoparticles grafted with charged-end-group polymers. J Colloid Interface Sci 2023; 650:1941-1948. [PMID: 37517193 DOI: 10.1016/j.jcis.2023.07.095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 07/12/2023] [Accepted: 07/14/2023] [Indexed: 08/01/2023]
Abstract
HYPOTHESIS Introducing charged terminal groups to polymers that graft nanoparticles enable Coulombic control over their assembly by tuning the pH and salinity of their aqueous suspensions. EXPERIMENTS Gold nanoparticles (AuNPs) are grafted with poly (ethylene glycol) (PEG) terminated with (charge-neutral), (negatively charged) or groups (positively charged), and characterized with dynamic light scattering, ζ-potential, and thermal gravimetric analysis. Liquid surface X-ray reflectivity (XR) and grazing incidence small-angle X-ray scattering (GISAXS) are used to determine the density profile and in-plane structure of the AuNPs assembly at the aqueous surface. FINDINGS Assembly of PEG-AuNPs at the liquid/vapor interface is tunable by adjusting pH or salinity for COOH but less for terminals. The distinct assembly behaviors are attributed to the overall charge of PEG-AuNPs as well as PEG conformation. COOH-PEG corona is more compact than those of the other terminal groups, leading to a crystalline structure with a smaller superlattice. The net charge per particle depends not only on the PEG terminal groups but also on the cation sequestration of PEG and the intrinsic negative charge of the AuNP surface. [1] The closeness to overall charge neutrality, and hydrogen bonding in play, brought by -PEG, drive -PEG-AuNPs to assembly and crystallinity without additives to the suspensions.
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Affiliation(s)
- Hyeong Jin Kim
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, United States
| | - Binay P Nayak
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, United States
| | - Honghu Zhang
- Center for Functional Nanomaterials and NSLS-II, Brookhaven National Laboratory, Upton, NY 11973, United States
| | - Benjamin M Ocko
- NSLS-II, Brookhaven National Laboratory, Upton, NY 11973, United States
| | - Alex Travesset
- Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States
| | - David Vaknin
- Ames National Laboratory, and Department of Physics and Astronomy, Iowa State University, Ames, IA 50011, United States
| | - Surya K Mallapragada
- Ames National Laboratory, and Department of Chemical and Biological Engineering, Iowa State University, Ames, IA 50011, United States.
| | - Wenjie Wang
- Division of Materials Sciences and Engineering, Ames National Laboratory, U.S. DOE, Ames, IA 50011, United States.
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3
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Simple model of the electrophoretic migration of spherical and rod-shaped Au nanoparticles in gels with varied mesh sizes. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129716] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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4
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Salt-induced diffusiophoresis of a nonionic micelle: Roles of salting out and proximity to surfactant cloud point. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119271] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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5
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Gopmandal PP, Duval JF. Electrostatics and electrophoresis of engineered nanoparticles and particulate environmental contaminants: beyond zeta potential-based formulation. Curr Opin Colloid Interface Sci 2022. [DOI: 10.1016/j.cocis.2022.101605] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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6
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Torres-Díaz M, Abreu-Takemura C, Díaz-Vázquez LM. Microalgae Peptide-Stabilized Gold Nanoparticles as a Versatile Material for Biomedical Applications. Life (Basel) 2022; 12:life12060831. [PMID: 35743862 PMCID: PMC9224969 DOI: 10.3390/life12060831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/27/2022] [Accepted: 06/01/2022] [Indexed: 11/16/2022] Open
Abstract
Microalgae peptides have many medical and industrial applications due to their functional properties. However, the rapid degradation of peptides not naturally present in biological samples represents a challenge. A strategy to increase microalgae peptide stability in biological samples is to use carriers to protect the active peptide and regulate its release. This study explores the use of gold nanoparticles (AuNPs) as carriers of the Chlorella microalgae peptide (VECYGPNRPQF). The potential of these peptide biomolecules as stabilizing agents to improve the colloidal stability of AuNPs in physiological environments is also discussed. Spectroscopic (UV-VIS, DLS) and Microscopic (TEM) analyses confirmed that the employed modification method produced spherical AuNPs by an average 15 nm diameter. Successful peptide capping of AuNPs was confirmed with TEM images and FTIR spectroscopy. The stability of the microalgae peptide increased when immobilized into the AuNPs surface, as confirmed by the observed thermal shifts in DSC and high zeta-potential values in the colloidal solution. By optimizing the synthesis of AuNPs and tracking the conferred chemical properties as AuNPs were modified with the peptide via various alternative methods, the synthesis of an effective peptide-based coating system for AuNPs and drug carriers was achieved. The microalgae peptide AuNPs showed lower ecotoxicity and better viability than the regular AuNPs.
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Affiliation(s)
- Marielys Torres-Díaz
- Department of Chemistry, University of Puerto Rico-Río Piedras Campus, San Juan 00925, Puerto Rico;
| | - Caren Abreu-Takemura
- Department of Biology, University of Puerto Rico-Mayagüez Campus, Mayagüez 00680, Puerto Rico;
| | - Liz M. Díaz-Vázquez
- Department of Chemistry, University of Puerto Rico-Río Piedras Campus, San Juan 00925, Puerto Rico;
- Correspondence:
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7
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Barman SS, Bhattacharyya S. Finite ion size and ion permittivity effects on gel electrophoresis of a soft particle. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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8
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Stability studies of β-galactosidase immobilized on gluconic acid coated fullerenes. BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING 2021. [DOI: 10.1007/s43153-021-00146-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Gopmandal PP, Bhattacharyya S, Ohshima H. A simplified model for gel electrophoresis of a hydrophobic rigid colloid. SOFT MATTER 2021; 17:5700-5710. [PMID: 34008689 DOI: 10.1039/d1sm00462j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Electrophoresis of a charged dielectric hydrophobic colloid embedded in a charged hydrogel medium is addressed. A slip velocity condition at the particle surface is considered. The characteristic of the gel electrophoresis is different compared with the free-solution electrophoresis due to the presence of immobile charges of the gel medium, which induces a strong background electroosmotic flow and modifies the Debye layer of the colloid. The gel electrophoresis of the dielectric hydrophobic charged colloid is made based on first-order perturbation analysis. A closed form solution involving simple exponential integrals for the mobility is derived, which reduces to several existing mobility expressions under limiting conditions such as for the gel electrophoresis of hydrophilic particles and a hydrophobic colloid in free-solution electrophoresis. We find that the mobility reversal is achieved by varying the Debye length or gel permeability. For the present first-order perturbation analysis, unlike free-solution electrophoresis, the particle dielectric permittivity is found to influence the mobility. One of the intriguing features of the present study is the derivation of the simplified mobility expression, which can be easily computed for a given set of parameter values.
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Affiliation(s)
- Partha P Gopmandal
- Department of Mathematics, National Institute of Technology Durgapur, Durgapur-713209, India.
| | - S Bhattacharyya
- Department of Mathematics, Indian Institute of Technology Kharagpur, Kharagpur-721302, India
| | - H Ohshima
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, Noda, Chiba, Japan
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10
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11
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Chen CY, Ni CC, Wu RN, Kuo SY, Li CH, Kiang YW, Yang CC. Surface plasmon coupling effects on the förster resonance energy transfer from quantum dot into rhodamine 6G. NANOTECHNOLOGY 2021; 32:295202. [PMID: 33848997 DOI: 10.1088/1361-6528/abf775] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Accepted: 04/13/2021] [Indexed: 06/12/2023]
Abstract
Rhodamine 6G (R6G) molecules linked CdZnSeS/ZnS green-emitting quantum dots (QDs) are self-assembled onto Ag nanoparticles (NPs) for studying the surface plasmon (SP) coupling effect on the Förster resonance energy transfer (FRET) process from QD into R6G. SP coupling can enhance the emission efficiency of QD such that FRET has to compete with QD emission for transferring energy into R6G. It is found that FRET efficiency is reduced under the SP coupling condition. Although R6G emission efficiency can also be enhanced through SP coupling when it is directly linked onto Ag NP, the enhancement decreases when R6G is linked onto QD and then the QD-R6G complex is self-assembled onto Ag NP. In particular, R6G emission efficiency can be reduced through SP coupling when the number of R6G molecules linked onto a QD is high. A rate-equation model is built for resembling the measured photoluminescence decay profiles and providing us with more detailed explanations for the observed FRET and SP coupling behaviors.
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Affiliation(s)
- Chien-Yu Chen
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Chia-Chun Ni
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Ruei-Nan Wu
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Sheng-Yang Kuo
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Chia-Hao Li
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Yean-Woei Kiang
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - C C Yang
- Institute of Photonics and Optoelectronics, and Department of Electrical Engineering, National Taiwan University, No. 1, section 4, Roosevelt Road, Taipei, 10617, Taiwan
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12
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Espasa-Valdepeñas A, Vega JF, Cruz V, Ramos J, Müller AJ, Martinez-Salazar J. Revisiting Polymer-Particle Interaction in PEO Solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3808-3816. [PMID: 33764765 PMCID: PMC9132384 DOI: 10.1021/acs.langmuir.0c02715] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 03/17/2021] [Indexed: 06/12/2023]
Abstract
We have measured the electrophoretic mobility and diffusion coefficient of carboxylate-modified and sulfate-modified polystyrene latex particles in poly(ethylene oxide) aqueous solutions. Carboxylate-modified polystyrene particles have shown a bound polymeric layer as the surface net charge vanishes even at very low poly(ethylene oxide) concentration. The polymeric layer causes a lower electrophoretic mobility and slower Brownian diffusion than that corresponding to the bare particles. We show that the diffusion is the result of a significantly increased effective particle size 2rheff = 30 nm. This bound layer is not present in sulfate-modified polystyrene latex particles. The interaction between the carboxylate-modified particle surface and the macromolecules has been confirmed by means of atomistic computer simulations. The grafted acrylate copolymers, which come from the preparation procedure of the latex particles, confer more hydrophobic surface ready to interact with the polymer. The simulations suggest that the interaction is modulated not only by the nature of the acrylic acid monomer but also by the length of the grafted copolymer. Our results have important implications for particle selection in microrheology experiments.
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Affiliation(s)
- A. Espasa-Valdepeñas
- Biophym,
Departamento de Física Macromolecular, Instituto de Estructura de la Materia (IEM-CSIC) c/Serrano 113 bis, 28006 Madrid, Spain
| | - J. F. Vega
- Biophym,
Departamento de Física Macromolecular, Instituto de Estructura de la Materia (IEM-CSIC) c/Serrano 113 bis, 28006 Madrid, Spain
| | - V. Cruz
- Biophym,
Departamento de Física Macromolecular, Instituto de Estructura de la Materia (IEM-CSIC) c/Serrano 113 bis, 28006 Madrid, Spain
| | - J. Ramos
- Biophym,
Departamento de Física Macromolecular, Instituto de Estructura de la Materia (IEM-CSIC) c/Serrano 113 bis, 28006 Madrid, Spain
| | - A. J. Müller
- POLYMAT
and Department of Polymers and Advanced Materials: Physics, Chemistry
and Technology, Faculty of Chemistry, University
of the Basque Country UPV/EHU, Paseo Manuel de Lardizabal 3, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation
for Science, 48009, Bilbao, Spain
| | - J. Martinez-Salazar
- Biophym,
Departamento de Física Macromolecular, Instituto de Estructura de la Materia (IEM-CSIC) c/Serrano 113 bis, 28006 Madrid, Spain
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13
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Ni CC, Kuo SY, Li ZH, Wu SH, Wu RN, Chen CY, Yang CC. Förster resonance energy transfer in surface plasmon coupled color conversion processes of colloidal quantum dots. OPTICS EXPRESS 2021; 29:4067-4081. [PMID: 33770994 DOI: 10.1364/oe.415679] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/14/2021] [Indexed: 06/12/2023]
Abstract
Förster resonance energy transfer (FRET) from a green-emitting quantum dot (GQD) into a red-emitting quantum dot (RQD) is an important mechanism in a multiple-color conversion process, particularly under the surface plasmon (SP) coupling condition for enhancing color conversion efficiency. Here, the dependencies of FRET efficiency on the relative concentrations of GQD and RQD in their mixtures and their surface molecule coatings for controlling surface charges are studied. Also, the SP coupling effects induced by two kinds of Ag nanoparticles on the emission behaviors of GQD and RQD are demonstrated, particularly when FRET is involved in the coupling process. FRET efficiency is reduced under the SP coupling condition. SP coupling can enhance the color conversion efficiency of either GQD or RQD. The combination of SP coupling and FRET can be used for controlling the relative converted light intensities in a multiple-color conversion process.
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14
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Guo X, Liang T, Yuan B, Wang J, Sun Q. Controllably facile design of electrophoretic-induced film-forming of nano tungsten oxide (VI) and their anti-wetting functionalization. NANOTECHNOLOGY 2020; 31:505603. [PMID: 33021226 DOI: 10.1088/1361-6528/abb558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
There is keen interest for designing promising tungsten oxide (VI, WO3) films or coatings due to their wide applications in fields of energy, engineering, etc. Thus, this paper firstly introduce a novel convenient method of electrophoretic assembly technique (EAT) in an optimal stable suspension of isopropyl alcohol, PEG-1000 and polyethyleneimine for designing the promising anti-wetting functional WO3 (VI) films with relative rough structures and uniform distribution in mild conditions. The product possess a high crystallinity and pureness by x-ray powder diffraction analysis. The EAT dynamic behaviours of WO3 (VI) nanoparticles are investigated in detail. Moreover, obtained films shows excellent anti-wetting properties after suface modification, and the hydrophobic studies results demonstrate that product have a high static water CA of approximate 169° and keep nearly stable even after ultralong exposure time (360 d), and show outstanding properties of anti-soaking, impacting-proof, and moisture resistance even in high relative humidity (90%). These breakthroughs will substantially push forward the convenient processing of other anti-wetting functional coatings with wide potential applications.
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Affiliation(s)
- Xiaogang Guo
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, People's Republic of China
- College of Chemistry and Environmental Engineering, Institute of Functional Materials, Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science and Engineering, Zigong 643000, People's Republic of China
| | - Taotao Liang
- Chongqing Sports Medicine Center, Department of Orthopedic Surgery, Southwest Hospital, the Third Military Medical University, Chongqing 40038, People's Republic of China
| | - Binfang Yuan
- Chongqing Key Laboratory of Inorganic Special Functional Materials, College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, People's Republic of China
| | - Jing Wang
- College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, People's Republic of China
| | - Qi Sun
- College of life sciences, Chongqing Normal University, Chongqing 401331, People's Republic of China
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15
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Campos DA, Schaumann GE, Philippe A. Natural TiO 2-Nanoparticles in Soils: A Review on Current and Potential Extraction Methods. Crit Rev Anal Chem 2020; 52:1-21. [PMID: 33054361 DOI: 10.1080/10408347.2020.1823812] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The monitoring of anthropogenic TiO2-nanoparticles in soils is challenged by the knowledge gap on their characteristics of the large natural TiO2-nanoparticle pool. Currently, no efficient method is available for characterizing natural TiO2-nanoparticles in soils without an extraction procedure. Considering the reported diversity of extraction methods, the following article reviews and discusses their potential for TiO2 from soils, focusing on the selectivity and the applicability to complex samples. It is imperative to develop a preparative step reducing analytical interferences and producing a stable colloidal dispersion. It is suggested that an oxidative treatment, followed by alkaline conditioning and the application of dispersive agents, achieve such task. This enables the further separation and characterization through size or surface-based separation (i.e., hydrodynamic fractionation methods, filtration or sequential centrifugation). Meanwhile, cloud point extraction, gel electrophoresis, and electrophoretic deposition have been studied on various nanoparticles but not on TiO2-nanoparticles. Furthermore, industrially applied methods in, for example, kaolin processing (flotation and flocculation) are interesting but require further improvements on terms of selectivity and applicability to soil samples. Overall, none of the current extraction methods is sufficient toward TiO2; however, further optimization or combination of orthogonal techniques could help reaching a fair selectivity toward TiO2.
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Affiliation(s)
- Daniel Armando Campos
- iES, Institute for Environmental Sciences, Group of Environmental and Soil Chemistry, University of Koblenz-Landau, Landau in der Pfalz, Germany
| | - Gabriele Ellen Schaumann
- iES, Institute for Environmental Sciences, Group of Environmental and Soil Chemistry, University of Koblenz-Landau, Landau in der Pfalz, Germany
| | - Allan Philippe
- iES, Institute for Environmental Sciences, Group of Environmental and Soil Chemistry, University of Koblenz-Landau, Landau in der Pfalz, Germany
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16
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Electrophoresis of composite soft particles with differentiated core and shell permeabilities to ions and fluid flow. J Colloid Interface Sci 2019; 558:280-290. [PMID: 31593861 DOI: 10.1016/j.jcis.2019.09.118] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/27/2019] [Accepted: 09/28/2019] [Indexed: 11/20/2022]
Abstract
Within the framework of analytical theories for soft surface electrophoresis, soft particles are classically defined by a hard impermeable core of given surface charge density surrounded by a polyelectrolyte shell layer permeable to both electroosmotic flow and ions from background electrolyte. This definition excludes practical core-shell particles, e.g. dendrimers, viruses or multi-layered polymeric particles, defined by a polyelectrolytic core where structural charges are distributed and where counter-ions concentration and electroosmotic flow velocity can be significant. Whereas a number of important approximate expressions has been derived for the electrophoretic mobility of hard and soft particles, none of them is applicable to such generic composite core-shell particles with differentiated ions- and fluid flow-permeabilities of their core and shell components. In this work, we elaborate an original closed-form electrophoretic mobility expression for this generic composite particle type within the Debye-Hückel electrostatic framework and thin double layer approximation. The expression explicitly involves the screening Debye layer thickness and the Brinkman core and shell hydrodynamic length scales, which favors so-far missing analysis of the respective core and shell contributions to overall particle mobility. Limits of this expression successfully reproduce results from Ohshima's electrophoresis theory solely applicable to soft particles with or without hard core.
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17
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Luo D, Wang X, Zeng S, Ramamurthy G, Burda C, Basilion JP. Prostate-specific membrane antigen targeted gold nanoparticles for prostate cancer radiotherapy: does size matter for targeted particles? Chem Sci 2019; 10:8119-8128. [PMID: 31588336 PMCID: PMC6764472 DOI: 10.1039/c9sc02290b] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Accepted: 07/11/2019] [Indexed: 01/21/2023] Open
Abstract
Since the introduction of PSA testing, significantly more men have been diagnosed and treated for prostate cancer. Localized prostate cancer typically is treated with prostatectomy, however there is still a high risk of recurrence after surgery, and adjuvant radiation has been shown to mitigate disease progression. X-ray therapy is frequently used as an adjuvant to treat prostate cancer, but is an imperfect tool. In this report we describe the development of a targeted-radiosensitizing nanoparticle that significantly improves X-ray therapy. Taking advantage of the demonstrated radiosensitizing activity of gold nanoparticles (AuNPs) we developed targeted AuNPs and varied both surface ligand density and AuNP size to develop an optimized AuNP for X-ray radiotherapy. We conjugated a prostate-specific membrane antigen (PSMA) targeting ligand, PSMA-1, to AuNPs and found that the targeting ligand dramatically improved gold uptake by PSMA-expressing PC3pip cells compared with PC3flu cells lacking the PSMA receptors. Further, enhancement of radiotherapy was significantly more pronounced by internalization of smaller PSMA targeted-AuNPs. Our studies provide a foundation for design of size-selected AuNPs for targeted radiotherapy and, for the first time, systematically investigate both the effect of ligand and AuNP size on the cell uptake, tumor targeting and radiotherapy efficacy.
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Affiliation(s)
- Dong Luo
- Department of Radiology , Case Western Reserve University , Cleveland , OH , USA .
| | - Xinning Wang
- Department of Radiology , Case Western Reserve University , Cleveland , OH , USA .
- Department of Biomedical Engineering , Case Western Reserve University , Cleveland , OH , USA
| | - Sophia Zeng
- Department of Radiology , Case Western Reserve University , Cleveland , OH , USA .
- Department of Chemistry , Case Western Reserve University , Cleveland , OH , USA .
| | | | - Clemens Burda
- Department of Chemistry , Case Western Reserve University , Cleveland , OH , USA .
| | - James P Basilion
- Department of Radiology , Case Western Reserve University , Cleveland , OH , USA .
- Department of Biomedical Engineering , Case Western Reserve University , Cleveland , OH , USA
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18
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Falahati M, Attar F, Sharifi M, Saboury AA, Salihi A, Aziz FM, Kostova I, Burda C, Priecel P, Lopez-Sanchez JA, Laurent S, Hooshmand N, El-Sayed MA. Gold nanomaterials as key suppliers in biological and chemical sensing, catalysis, and medicine. Biochim Biophys Acta Gen Subj 2019; 1864:129435. [PMID: 31526869 DOI: 10.1016/j.bbagen.2019.129435] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 09/11/2019] [Accepted: 09/11/2019] [Indexed: 11/29/2022]
Abstract
BACKGROUND Gold nanoparticles (AuNPs) with unique physicochemical properties have received a great deal of interest in the field of biological, chemical and biomedical implementations. Despite the widespread use of AuNPs in chemical and biological sensing, catalysis, imaging and diagnosis, and more recently in therapy, no comprehensive summary has been provided to explain how AuNPs could aid in developing improved sensing and catalysts systems as well as medical settings. SCOPE OF REVIEW The chemistry of Au-based nanosystems was followed by reviewing different applications of Au nanomaterials in biological and chemical sensing, catalysis, imaging and diagnosis by a number of approaches, and finally synergistic combination therapy of different cancers. Afterwards, the clinical impacts of AuNPs, future application of AuNPs, and opportunities and challenges of AuNPs application were also discussed. MAJOR CONCLUSIONS AuNPs show exclusive colloidal stability and are considered as ideal candidates for colorimetric detection, catalysis, imaging, and photothermal transducers, because their physicochemical properties can be tuned by adjusting their structural dimensions achieved by the different manufacturing methods. GENERAL SIGNIFICANCE This review provides some details about using AuNPs in sensing and catalysis applications as well as promising theranostic nanoplatforms for cancer imaging and diagnosis, and sensitive, non-invasive, and synergistic methods for cancer treatment in an almost comprehensive manner.
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Affiliation(s)
- Mojtaba Falahati
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Farnoosh Attar
- Department of Biology, Faculty of Food Industry & Agriculture, Standard Research Institute (SRI), Karaj, Iran
| | - Majid Sharifi
- Department of Nanotechnology, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Department of Animal Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
| | - Abbas Salihi
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq; Department of Medical Analysis, Faculty of Science, Tishk International University, Erbil, Iraq
| | - Falah Mohammad Aziz
- Department of Biology, College of Science, Salahaddin University-Erbil, Kurdistan Region, Iraq
| | - Irena Kostova
- Department of Chemistry, Faculty of Pharmacy, Medical University, 2 Dunav St., Sofia 1000, Bulgaria
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, United States
| | - Peter Priecel
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD Liverpool, United Kingdom
| | - Jose A Lopez-Sanchez
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Crown Street, L69 7ZD Liverpool, United Kingdom
| | - Sophie Laurent
- General, Organic and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium; Center for Microscopy and Molecular Imaging (CMMI), Rue A. Bolland, 8 B-6041 Gosselies, Belgium
| | - Nasrin Hooshmand
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, United States
| | - Mostafa A El-Sayed
- Laser Dynamics Laboratory, School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332, United States
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19
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Song Y, Feng A, Liu Z, Li D. Zeta potentials of PDMS surfaces modified with poly(ethylene glycol) by physisorption. Electrophoresis 2019; 41:761-768. [DOI: 10.1002/elps.201900246] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 08/14/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022]
Affiliation(s)
- Yongxin Song
- Department of Marine EngineeringDalian Maritime University Dalian P. R. China
| | - Angran Feng
- China Classification Society Guangzhou Branch Guangzhou P. R. China
| | - Zhijian Liu
- Department of Marine EngineeringDalian Maritime University Dalian P. R. China
| | - Dongqing Li
- Department of Mechanical and Mechatronics EngineeringUniversity of Waterloo Waterloo Canada
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20
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Ohshima H. Gel electrophoresis of a soft particle. Adv Colloid Interface Sci 2019; 271:101977. [PMID: 31352312 DOI: 10.1016/j.cis.2019.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/13/2019] [Accepted: 06/18/2019] [Indexed: 01/26/2023]
Abstract
A review is given on the theory of the gel electrophoresis of a spherical soft particle, i.e., the electrophoresis of a spherical hard particle covered with an ion-penetrable surface layer of polyelectrolytes moving in a polymer gel medium, which may either be charged or uncharged. A detailed study is made on the fundamental electrokinetic equations describing the soft-particle gel electrophoresis due to the long-range hydrodynamic particle-gel interaction on the basis of the Brinkman-Debye-Bueche model. A general expression and several approximate analytic expressions are given for the electrophoretic mobility of a soft particle in a polymer gel medium.
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Affiliation(s)
- Hiroyuki Ohshima
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki Noda, Chiba 278-8510, Japan.
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21
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Chang Y, Feng Y, Cheng Y, Zheng R, Wu X, Jian H, Zhang D, Tang Z, Wang Z, Hao J, Zhang H. Anisotropic Plasmonic Metal Heterostructures as Theranostic Nanosystems for Near Infrared Light-Activated Fluorescence Amplification and Phototherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900158. [PMID: 31179221 PMCID: PMC6548947 DOI: 10.1002/advs.201900158] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/26/2019] [Indexed: 05/27/2023]
Abstract
The development of sophisticated theranostic systems for simultaneous near infrared (NIR) fluorescence imaging and phototherapy is of particular interest. Herein, anisotropic plasmonic metal heterostructures, Pt end-deposited Au nanorods (PEA NRs), are developed to efficiently produce hot electrons under 808 nm laser irradiation, exhibiting the strong electric density. These hot electrons can release the heat through electron-phonon relaxation and form reactive oxygen species through chemical transformation, as a result of potent photothermal and photodynamic performance. Simultaneously, the confined electromagnetic field of PEA NRs can transfer energy to adjacent polyethylene glycol (PEG)-linked NIR fluorophores (CF) based on their energy overlap mechanism, leading to remarkable NIR fluorescence amplification in CF-PEA NRs. Various PEG linkers (1, 3.4, 5.0, and 10 kD) are employed to regulate the distance between CF and PEA NRs of CF-PEA NRs, and the maximum fluorescence intensity is achieved in CF5k-PEA NRs. After further attachment with i-motif DNA/Nrf2 siRNA chimera to simultaneously suppress both cellular antioxidant defense and hyperthermia resistance effects, the final biocompatible CF5k-bPEA@siRNA NRs present promising NIR fluorescence imaging ability and 808 nm laser-activated photothermal and photodynamic therapeutic effect in MCF7 cells and tumor-bearing mice, holding great potential for cancer therapy.
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Affiliation(s)
- Yun Chang
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
- University of Chinese of Academy of SciencesBeijing100049China
| | - Yanlin Feng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
- University of Science and Technology of ChinaAnhui230026China
| | - Yan Cheng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
| | - Runxiao Zheng
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
- University of Science and Technology of ChinaAnhui230026China
| | - Xiaqing Wu
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
- University of Science and Technology of ChinaAnhui230026China
| | - Hui Jian
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
| | - Dawei Zhang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
| | - Zhaohui Tang
- Key Laboratory of Polymer EcomaterialsChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
| | - Zhenxin Wang
- State Key Laboratory of Electroanalytical ChemistryChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
| | - Jiaming Hao
- State Key Laboratory of Infrared PhysicsShanghai Institute of Technical PhysicsChinese Academy of SciencesShanghai200083China
| | - Haiyuan Zhang
- Laboratory of Chemical BiologyChangchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China
- University of Chinese of Academy of SciencesBeijing100049China
- University of Science and Technology of ChinaAnhui230026China
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22
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Electrophoretic mobility of a charged spherical colloidal particle in an uncharged or charged polymer gel medium. Colloid Polym Sci 2019. [DOI: 10.1007/s00396-019-04485-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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23
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Srinivasan SS, Seenivasan R, Condie A, Gerson SL, Wang Y, Burda C. Gold Nanoparticle-Based Fluorescent Theranostics for Real-Time Image-Guided Assessment of DNA Damage and Repair. Int J Mol Sci 2019; 20:E471. [PMID: 30678294 PMCID: PMC6387448 DOI: 10.3390/ijms20030471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 01/09/2019] [Accepted: 01/15/2019] [Indexed: 12/11/2022] Open
Abstract
Chemotherapeutic dosing, is largely based on the tolerance levels of toxicity today. Molecular imaging strategies can be leveraged to quantify DNA cytotoxicity and thereby serve as a theranostic tool to improve the efficacy of treatments. Methoxyamine-modified cyanine-7 (Cy7MX) is a molecular probe which binds to apurinic/apyrimidinic (AP)-sites, inhibiting DNA-repair mechanisms implicated by cytotoxic chemotherapies. Herein, we loaded (Cy7MX) onto polyethylene glycol-coated gold nanoparticles (AuNP) to selectively and stably deliver the molecular probe intravenously to tumors. We optimized the properties of Cy7MX-loaded AuNPs using optical spectroscopy and tested the delivery mechanism and binding affinity using the DLD1 colon cancer cell line in vitro. A 10:1 ratio of Cy7MX-AuNPs demonstrated a strong AP site-specific binding and the cumulative release profile demonstrated 97% release within 12 min from a polar to a nonpolar environment. We further demonstrated targeted delivery using imaging and biodistribution studies in vivo in an xenografted mouse model. This work lays a foundation for the development of real-time molecular imaging techniques that are poised to yield quantitative measures of the efficacy and temporal profile of cytotoxic chemotherapies.
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Affiliation(s)
- Shriya S Srinivasan
- Center for Chemical Dynamics and Nanomaterials Research, Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Rajesh Seenivasan
- Center for Chemical Dynamics and Nanomaterials Research, Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Allison Condie
- Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Stanton L Gerson
- Department of Hematology and Oncology, Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, USA.
| | - Yanming Wang
- Department of Radiology, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
| | - Clemens Burda
- Center for Chemical Dynamics and Nanomaterials Research, Department of Chemistry, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106, USA.
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24
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Rabanel JM, Adibnia V, Tehrani SF, Sanche S, Hildgen P, Banquy X, Ramassamy C. Nanoparticle heterogeneity: an emerging structural parameter influencing particle fate in biological media? NANOSCALE 2019; 11:383-406. [PMID: 30560970 DOI: 10.1039/c8nr04916e] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Drug nanocarriers' surface chemistry is often presumed to be uniform. For instance, the polymer surface coverage and distribution of ligands on nanoparticles are described with averaged values obtained from quantification techniques based on particle populations. However, these averaged values may conceal heterogeneities at different levels, either because of the presence of particle sub-populations or because of surface inhomogeneities, such as patchy surfaces on individual particles. The characterization and quantification of chemical surface heterogeneities are tedious tasks, which are rather limited by the currently available instruments and research protocols. However, heterogeneities may contribute to some non-linear effects observed during the nanoformulation optimization process, cause problems related to nanocarrier production scale-up and correlate with unexpected biological outcomes. On the other hand, heterogeneities, while usually unintended and detrimental to nanocarrier performance, may, in some cases, be sought as adjustable properties that provide NPs with unique functionality. In this review, results and processes related to this issue are compiled, and perspectives and possible analytical developments are discussed.
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Affiliation(s)
- Jean-Michel Rabanel
- Centre INRS Institut Armand-Frappier, 531, boul. des Prairies, Laval, QC H7V 1B7, Canada.
| | - Vahid Adibnia
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Soudeh F Tehrani
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Steven Sanche
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Patrice Hildgen
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Xavier Banquy
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
| | - Charles Ramassamy
- Centre INRS Institut Armand-Frappier, 531, boul. des Prairies, Laval, QC H7V 1B7, Canada.
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25
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Reznickova A, Slavikova N, Kolska Z, Kolarova K, Belinova T, Hubalek Kalbacova M, Cieslar M, Svorcik V. PEGylated gold nanoparticles: Stability, cytotoxicity and antibacterial activity. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2018.09.083] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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26
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Mangadlao JD, Wang X, McCleese C, Escamilla M, Ramamurthy G, Wang Z, Govande M, Basilion JP, Burda C. Prostate-Specific Membrane Antigen Targeted Gold Nanoparticles for Theranostics of Prostate Cancer. ACS NANO 2018; 12:3714-3725. [PMID: 29641905 PMCID: PMC6392200 DOI: 10.1021/acsnano.8b00940] [Citation(s) in RCA: 102] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Prostate cancer is one of the most common cancers and among the leading causes of cancer deaths in the United States. Men diagnosed with the disease typically undergo radical prostatectomy, which often results in incontinence and impotence. Recurrence of the disease is often experienced by most patients with incomplete prostatectomy during surgery. Hence, the development of a technique that will enable surgeons to achieve a more precise prostatectomy remains an open challenge. In this contribution, we report a theranostic agent (AuNP-5kPEG-PSMA-1-Pc4) based on prostate-specific membrane antigen (PSMA-1)-targeted gold nanoparticles (AuNPs) loaded with a fluorescent photodynamic therapy (PDT) drug, Pc4. The fabricated nanoparticles are well-characterized by spectroscopic and imaging techniques and are found to be stable over a wide range of solvents, buffers, and media. In vitro cellular uptake experiments demonstrated significantly higher nanoparticle uptake in PSMA-positive PC3pip cells than in PSMA-negative PC3flu cells. Further, more complete cell killing was observed in Pc3pip than in PC3flu cells upon exposure to light at different doses, demonstrating active targeting followed by Pc4 delivery. Likewise, in vivo studies showed remission on PSMA-expressing tumors 14 days post-PDT. Atomic absorption spectroscopy revealed that targeted AuNPs accumulate 4-fold higher in PC3pip than in PC3flu tumors. The nanoparticle system described herein is envisioned to provide surgical guidance for prostate tumor resection and therapeutic intervention when surgery is insufficient.
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Affiliation(s)
- Joey Dacula Mangadlao
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Xinning Wang
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Christopher McCleese
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Maria Escamilla
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | | | - Ziying Wang
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Mukul Govande
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - James P. Basilion
- Department of Radiology, Case Western Reserve University, Cleveland, Ohio 44106, United States
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio 44106, United States
- Corresponding Authors:.
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
- Corresponding Authors:.
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27
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Wang Y, Olesik SV. Separation of PEGylated Gold Nanoparticles by Micellar Enhanced Electrospun Fiber Based Ultrathin Layer Chromatography. Anal Chem 2018; 90:2662-2670. [DOI: 10.1021/acs.analchem.7b04442] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yanhui Wang
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States of America
| | - Susan V. Olesik
- Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, United States of America
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28
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Labouta HI, Gomez-Garcia MJ, Sarsons CD, Nguyen T, Kennard J, Ngo W, Terefe K, Iragorri N, Lai P, Rinker KD, Cramb DT. Surface-grafted polyethylene glycol conformation impacts the transport of PEG-functionalized liposomes through a tumour extracellular matrix model. RSC Adv 2018; 8:7697-7708. [PMID: 35539117 PMCID: PMC9078461 DOI: 10.1039/c7ra13438j] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 02/13/2018] [Indexed: 12/29/2022] Open
Abstract
The effect of surface PEGylation on nanoparticle transport through an extracellular matrix (ECM) is an important determinant for tumor targeting success. Fluorescent stealth liposomes (base lipid DOPC) were prepared incorporating different proportions of PEG-grafted lipids (2.5, 5 and 10% of the total lipid content) for a series of PEG molecular weights (1000, 2000 and 5000 Da). The ECM was modelled using a collagen matrix. The kinetics of PEGylated liposome adhesion to and transport in collagen matrices were tracked using fluorescence correlation spectroscopy (FCS) and confocal microscopy, respectively. Generalized least square regressions were used to determine the temporal correlations between PEG molecular weight, surface density and conformation, and the liposome transport in a collagen hydrogel over 15 hours. PEG conformation determined the interaction of liposomes with the collagen hydrogel and their transport behaviour. Interestingly, liposomes with mushroom PEG conformation accumulated on the interface of the collagen hydrogel, creating a dense liposomal front with short diffusion distances into the hydrogels. On the other hand, liposomes with dense brush PEG conformation interacted to a lesser extent with the collagen hydrogel and diffused to longer distances. In conclusion, a better understanding of PEG surface coating as a modifier of transport in a model ECM matrix has resulted. This knowledge will improve design of future liposomal drug carrier systems. The effect of surface PEGylation on nanoparticle transport through an extracellular matrix (ECM) is an important determinant for tumor targeting success.![]()
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Affiliation(s)
- Hagar I. Labouta
- Department of Chemistry
- Faculty of Science
- University of Calgary
- Canada
- Biomedical Engineering
| | | | | | - Trinh Nguyen
- Department of Chemistry
- Faculty of Science
- University of Calgary
- Canada
| | | | - Wayne Ngo
- Department of Chemistry
- Faculty of Science
- University of Calgary
- Canada
| | | | - Nicolas Iragorri
- Health Technology Assessment Unit
- Department of Community Health Sciences
- Cumming School of Medicine
- University of Calgary
- Canada
| | - Patrick Lai
- Department of Biological Sciences
- University of Calgary
- Canada
| | - Kristina D. Rinker
- Biomedical Engineering
- University of Calgary
- Canada
- Department of Physiology and Pharmacology
- University of Calgary
| | - David T. Cramb
- Department of Chemistry
- Faculty of Science
- University of Calgary
- Canada
- Department of Physiology and Pharmacology
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29
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Bikos DA, Mason TG. Influence of ionic constituents and electrical conductivity on the propagation of charged nanoscale objects in passivated gel electrophoresis. Electrophoresis 2017; 39:394-405. [PMID: 29114908 DOI: 10.1002/elps.201700310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Revised: 10/11/2017] [Accepted: 10/16/2017] [Indexed: 11/11/2022]
Abstract
When determining the electric field E acting on charged objects in gel electrophoresis, the electrical conductivity of the buffer solution is often overlooked; E is typically calculated by dividing the applied voltage by a separation distance between electrodes. However, as a consequence of electrolytic reactions, which occur at the electrodes, gradients in the ionic content of the buffer solution and its conductivity can potentially develop over time, thereby impacting E and affecting propagation velocities of charged objects, v, directly. Here, we explore how the types and concentrations of ionic constituents of the buffer solution, which largely control its conductivity, when used in passivated gel electrophoresis (P-gelEP), can influence E, thereby altering v of charged nanospheres propagating through large-pore gels. We measure the conductivity of the buffer solution in the center of the gel region near propagating bands of nanospheres, and we show that predictions of E based on conductivity closely correlate with v. We also explore P-gelEP involving two different types of passivation agents: nonionic polyethylene glycol (PEG) and anionic sodium dodecyl sulfate (SDS). Our observations indicate that using a conductivity model to determine E from the local current density and the conductivity where spheres are propagating can lead to a better estimate than the standard approach of a voltage divided by a separation. Moreover, this conductivity model also provides a starting point for interpreting the complex behavior created by amphiphilic ionic passivation agents, such as SDS, on propagating nanospheres used in some P-gelEP experiments.
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Affiliation(s)
- Dimitri A Bikos
- Department of Chemistry and Biochemistry, University of California- Los Angeles, Los Angeles, CA, USA
| | - Thomas G Mason
- Department of Chemistry and Biochemistry, University of California- Los Angeles, Los Angeles, CA, USA.,Department of Physics and Astronomy, University of California- Los Angeles, Los Angeles, CA, USA
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30
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Majee PS, Bhattacharyya S, Gopmandal PP, Ohshima H. On gel electrophoresis of dielectric charged particles with hydrophobic surface: A combined theoretical and numerical study. Electrophoresis 2017; 39:794-806. [DOI: 10.1002/elps.201700294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 09/02/2017] [Accepted: 09/05/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Partha Sarathi Majee
- Department of Mathematics; Indian Institute of Technology Kharagpur; Kharagpur, West Bengal India
| | - Somnath Bhattacharyya
- Department of Mathematics; Indian Institute of Technology Kharagpur; Kharagpur, West Bengal India
| | | | - Hiroyuki Ohshima
- Faculty of Pharmaceutical Sciences; Tokyo University of Science Noda; Chiba Japan
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31
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Smith AM, Johnston KA, Crawford SE, Marbella LE, Millstone JE. Ligand density quantification on colloidal inorganic nanoparticles. Analyst 2017; 142:11-29. [DOI: 10.1039/c6an02206e] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
This review highlights current analytical methods for quantifying nanoparticle surface ligands and fundamental barriers to the accuracy of these techniques.
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Affiliation(s)
- Ashley M. Smith
- Department of Chemistry
- University of Pittsburgh
- Pittsburgh
- USA
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32
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Yang H, Chen Z, Zhang L, Yung WY, Leung KCF, Chan HYE, Choi CHJ. Mechanism for the Cellular Uptake of Targeted Gold Nanorods of Defined Aspect Ratios. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:5178-5189. [PMID: 27442290 DOI: 10.1002/smll.201601483] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Revised: 06/19/2016] [Indexed: 06/06/2023]
Abstract
Biomedical applications of non-spherical nanoparticles such as photothermal therapy and molecular imaging require their efficient intracellular delivery, yet reported details on their interactions with the cell remain inconsistent. Here, the effects of nanoparticle geometry and receptor targeting on the cellular uptake and intracellular trafficking are systematically explored by using C166 (mouse endothelial) cells and gold nanoparticles of four different aspect ratios (ARs) from 1 to 7. When coated with poly(ethylene glycol) strands, the cellular uptake of untargeted nanoparticles monotonically decreases with AR. Next, gold nanoparticles are functionalized with DNA oligonucleotides to target Class A scavenger receptors expressed by C166 cells. Intriguingly, cellular uptake is maximized at a particular AR: shorter nanorods (AR = 2) enter C166 cells more than nanospheres (AR = 1) and longer nanorods (AR = 4 or 7). Strikingly, long targeted nanorods align to the cell membrane in a near-parallel manner followed by rotating by ≈90° to enter the cell via a caveolae-mediated pathway. Upon cellular entry, targeted nanorods of all ARs predominantly traffic to the late endosome without progressing to the lysosome. The studies yield important materials design rules for drug delivery carriers based on targeted, anisotropic nanoparticles.
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Affiliation(s)
- Hongrong Yang
- Department of Electronic Engineering (Biomedical Engineering), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Zhong Chen
- Department of Electronic Engineering (Biomedical Engineering), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Lei Zhang
- Department of Electronic Engineering (Biomedical Engineering), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
- Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Wing-Yin Yung
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Ken Cham-Fai Leung
- Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong, China
| | - Ho Yin Edwin Chan
- School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Chung Hang Jonathan Choi
- Department of Electronic Engineering (Biomedical Engineering), The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
- Shun Hing Institute of Advanced Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
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Abstract
Gel-electrophoresis has been demonstrated in recent decades to successfully sort a great variety of nanoparticles according to their size, charge, surface chemistry, and corona architecture. However, quantitative theoretical interpetations have been limited by the number and complexity of factors that influence particle migration. Theoretical models have been fragmented and incomplete with respect to their counterparts for free-solution electrophoresis. This paper unifies electrokinetic models that address complex nanoparticle corona architectures, corona and gel charge regulation (e.g., by the local pH), multi-component electrolytes, and non-linear electrostatics and relaxation effects. By comprehensively addressing the electrokinetic aspects of the more general gel-electrophoresis problem, in which short-ranged steric interactions are significant, a stage is set to better focus on the physicochemical and steric factors. In this manner, it is envisioned that noparticle gel-electrophoresis may eventually be advanced from a nanoparticle-characterization tool to one that explicitly probes the short-ranged interactions of nanoparticles with soft networks, such as synthetic gels and biological tissues. In this paper, calculations are undertaken that identify a generalized Hückel limit for nanoparticles in low-conductivity gels, and a new Smoluchowski limit for polyelectrolyte-coated particles in high-conductivity gels that is independent of the gel permeability. Also of fundamental interest is a finite, albeit small, electrophoretic mobility for uncharged particles in charged gels. Electrophoretic mobilities and drag coefficients (with electroviscous effects) for nanoparticles bearing non-uniform coronas show that relaxation effects are typically weak for the small nanoparticles (radius ≈3-10 nm) to which gel-electrophoresis has customarily been applied, but are profound for the larger nanoparticles (radius ≳ 40 nm in low conductivity gels) to which passivated gel-electrophoresis experiments have recently been applied. To demonstrate its practical application, the model is applied to (pH charge regulating) carboxylated polystyrene nanospheres in low-density passivated agarose gels (weak steric effects). This furnishes a new theoretical interpretation of literature data for which a finite diffuse-layer-thickness, pH-charge regulation, high charge, and relaxation effects dominate over the steric influences.
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Affiliation(s)
- Reghan J Hill
- Department of Chemical Engineering, McGill University, 3610 University Street, Montreal, Quebec H3A 0C5, Canada.
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Allison S, Li F, Le M. Electrophoretic Mobility of a Dilute, Highly Charged “Soft” Spherical Particle in a Charged Hydrogel. J Phys Chem B 2016; 120:8071-9. [DOI: 10.1021/acs.jpcb.5b12224] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Stuart Allison
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United States
| | - Fei Li
- Department
of Chemical and Biomolecular Engineering, The Hong Kong University of Science and Technology, Hong Kong, P. R. China
| | - Melinda Le
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United States
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35
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Bhattacharyya S, De S. Gel electrophoresis and size selectivity of charged colloidal particles in a charged hydrogel medium. Chem Eng Sci 2016. [DOI: 10.1016/j.ces.2015.11.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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36
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Hill RJ. Hydrogel charge regulation and electrolyte ion-concentration perturbations in nanoparticle gel electrophoresis. Proc Math Phys Eng Sci 2015. [DOI: 10.1098/rspa.2015.0523] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Gel electrophoresis of spherical nanoparticles (NPs) is studied using an electrokinetic model that couples the ion conservation equations to the Poisson and fluid momentum equations, thus including the so-called polarization and relaxation processes. This model is therefore the charged gel electrophoresis analogue of the well-known O’Brien and White solution of the standard electrokinetic model for free-solution electrophoresis. Results are provided for the small NPs (size around 10 nm) to which gel electrophoresis is relevant, because particles must be small enough to permeate the gel: these include the particle drag coefficient (or Brownian diffusivity), which is subject to hydrodynamic screening and electroviscous effects, and the electrophoretic mobility, which is subject to nonlinear electrostatic and charge polarization influences. Also addressed are the influences of charge-regulating gels and the accompanying particle-induced immobile charge-density perturbations. Ion-concentration perturbations attenuate the electrophoretic mobility and enhance the drag coefficient according to the particle charge and the mobility of the most abundant counterion. However, dynamic regulation of the hydrogel charge—termed the secondary immobile charge-density perturbation—has a negligible influence on the particle mobility, and may therefore be neglected for most practical purposes.
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37
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Abstract
Nanoparticle (NP) size and charge play key roles in bioconjugation chemistry, imaging and drug delivery. Although the electrophoretic mobility and hydrodynamic size are routinely measured, interpreting these data can be extremely difficult. Here, the challenge is addressed via an electrokinetic model for spheres bearing a soft amphoteric corona, the charge of which is regulated by a multi-component electrolyte. The model is applied to NPs with a metallic core to which are grafted poly(ethylene glycol) chains with either weak acid or amphiprotic end groups. The results elucidate the separate roles of electrolyte pH and ionic strength on the electrophoretic mobility and diffusion coefficient. In this study, the forces were evaluated directly, rather than from the Stokeslet velocity disturbances. While the second-order convergence was demonstrated by both methods, the direct approach, which uses only the inner part of the global solution, furnished superior accuracy and robustness. This may benefit future attempts to model the dielectric and electroacoustic properties of these complex nanoparticulates.
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38
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Politi J, Spadavecchia J, Fiorentino G, Antonucci I, Casale S, De Stefano L. Interaction of Thermus thermophilus ArsC enzyme and gold nanoparticles naked-eye assays speciation between As(III) and As(V). NANOTECHNOLOGY 2015; 26:435703. [PMID: 26436536 DOI: 10.1088/0957-4484/26/43/435703] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The thermophilic bacterium Thermus thermophilus HB27 encodes chromosomal arsenate reductase (TtArsC), the enzyme responsible for resistance to the harmful effects of arsenic. We report on adsorption of TtArsC onto gold nanoparticles for naked-eye monitoring of biomolecular interaction between the enzyme and arsenic species. Synthesis of hybrid biological-metallic nanoparticles has been characterized by transmission electron microscopy (TEM), ultraviolet-visible (UV-vis), dynamic light scattering (DLS) and phase modulated infrared reflection absorption (PM-IRRAS) spectroscopies. Molecular interactions have been monitored by UV-vis and Fourier transform-surface plasmon resonance (FT-SPR). Due to the nanoparticles' aggregation on exposure to metal salts, pentavalent and trivalent arsenic solutions can be clearly distinguished by naked-eye assay, even at 85 μM concentration. Moreover, the assay shows partial selectivity against other heavy metals.
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Affiliation(s)
- Jane Politi
- Institute for Microelectronics and Microsystems, Unit of Naples-National Research Council Via P. Castellino 111, 80127, Italy
- Department of Chemical Sciences, University of Naples 'Federico II', Via Cynthia, 80126 Naples Italy
| | - Jolanda Spadavecchia
- Sorbonne Universités, UPMC Univ Paris VI, Laboratoire de Réactivité de Surface, 4 place Jussieu, F-75005 Paris, France
- CNRS, UMR 7244, CSPBAT, Laboratoire de Chimie, Structures et Propriétés de Biomateriaux et d'Agents Therapeutiques Université Paris 13, Sorbonne Paris Cité, Bobigny, France CNRS, Paris, France
| | - Gabriella Fiorentino
- Department of Biology, University of Naples 'Federico II', Via Cynthia, 80126 Naples, Italy
| | - Immacolata Antonucci
- Department of Biology, University of Naples 'Federico II', Via Cynthia, 80126 Naples, Italy
| | - Sandra Casale
- Sorbonne Universités, UPMC Univ Paris VI, Laboratoire de Réactivité de Surface, 4 place Jussieu, F-75005 Paris, France
| | - Luca De Stefano
- Institute for Microelectronics and Microsystems, Unit of Naples-National Research Council Via P. Castellino 111, 80127, Italy
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39
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Analyzing the influence of PEG molecular weight on the separation of PEGylated gold nanoparticles by asymmetric-flow field-flow fractionation. Anal Bioanal Chem 2015; 407:8661-72. [DOI: 10.1007/s00216-015-9056-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2015] [Revised: 09/03/2015] [Accepted: 09/16/2015] [Indexed: 11/25/2022]
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40
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Hill RJ, Li F, Doane TL, Burda C. Electrophoretic Interpretation of PEGylated NP Structure with and without Peripheral Charge. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10246-10253. [PMID: 26332501 DOI: 10.1021/acs.langmuir.5b02809] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Anchoring poly(ethylene glycol) (PEG) to inorganic nanoparticles (NPs) permits control over NP properties for a variety of technological applications. However, the core-shell structure tremendously complicates the interpretation of the ubiquitous ζ-potential, as furnished by electrophoretic light-scattering, capillary electrophoresis or gel electrophoresis. To advance the ζ-potential-and the more fundamental electrophoretic mobility-as a quantitative diagnostic for PEGylated NPs, we synthesized and characterized Au NPs bearing terminally anchored 5 kDa PEG ligands with univalent carboxymethyl end groups. Using the electrophoretic mobilities, acquired over a wide range of ionic strengths, we developed a theoretical model for the distributions of polymer segments, charge, electrostatic potential, and osmotic pressure that envelop the core: knowledge that will help to improve the performance of soft NPs in fundamental research and technological applications.
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Affiliation(s)
- Reghan J Hill
- Department of Chemical Engineering, McGill University , 3610 University Street, Montreal, Québec H3A 0C5, Canada
| | - Fei Li
- Department of Chemical Engineering, McGill University , 3610 University Street, Montreal, Québec H3A 0C5, Canada
| | - Tennyson L Doane
- Department of Chemistry, Case Western Reserve University , 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University , 10900 Euclid Avenue, Cleveland, Ohio 44106, United States
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41
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Terekhin VV, Senchikhin IN, Dement’eva OV, Rudoy VM. Conjugates of gold nanoparticles and poly(ethylene glycol): Formation in hydrosol, direct transfer to organic medium, and stability of organosols. COLLOID JOURNAL 2015. [DOI: 10.1134/s1061933x15040183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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García I, Henriksen-Lacey M, Sánchez-Iglesias A, Grzelczak M, Penadés S, Liz-Marzán LM. Residual CTAB Ligands as Mass Spectrometry Labels to Monitor Cellular Uptake of Au Nanorods. J Phys Chem Lett 2015; 6:2003-2008. [PMID: 26266492 DOI: 10.1021/acs.jpclett.5b00816] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Gold nanorods have numerous applications in biomedical research, including diagnostics, bioimaging, and photothermal therapy. Even though surfactant removal and surface conjugation with antifouling molecules such as polyethylene glycol (PEG) are required to minimize nonspecific protein binding and cell uptake, the reliable characterization of these processes remains challenging. We propose here the use of laser desorption/ionization mass spectrometry (LDI-MS) to study the ligand exchange efficiency of cetyltrimethylammonium bromide (CTAB)-coated nanorods with different PEG grafting densities and to characterize nanorod internalization in cells. Application of LDI-MS analysis shows that residual CTAB consistently remains adsorbed on PEG-capped Au nanorods. Interestingly, such residual CTAB can be exploited as a mass barcode to discern the presence of nanorods in complex fluids and in vitro cellular systems, even at very low concentrations.
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Affiliation(s)
- Isabel García
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | | | | | - Marek Grzelczak
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- §Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Soledad Penadés
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | - Luis M Liz-Marzán
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- §Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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43
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Cheng Y, Dai Q, Morshed R, Fan X, Wegscheid ML, Wainwright DA, Han Y, Zhang L, Auffinger B, Tobias AL, Rincón E, Thaci B, Ahmed AU, Warnke P, He C, Lesniak MS. Blood-brain barrier permeable gold nanoparticles: an efficient delivery platform for enhanced malignant glioma therapy and imaging. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2014; 10:5137-50. [PMID: 25104165 PMCID: PMC4268041 DOI: 10.1002/smll.201400654] [Citation(s) in RCA: 96] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2014] [Revised: 06/27/2014] [Indexed: 05/19/2023]
Abstract
The blood-brain barrier (BBB) remains a formidable obstacle in medicine, preventing efficient penetration of chemotherapeutic and diagnostic agents to malignant gliomas. Here, a transactivator of transcription (TAT) peptide-modified gold nanoparticle platform (TAT-Au NP) with a 5 nm core size is demonstrated to be capable of crossing the BBB efficiently and delivering cargoes such as the anticancer drug doxorubicin (Dox) and Gd(3+) contrast agents to brain tumor tissues. Treatment of mice bearing intracranial glioma xenografts with pH-sensitive Dox-conjugated TAT-Au NPs via a single intravenous administration leads to significant survival benefit when compared to the free Dox. Furthermore, it is demonstrated that TAT-Au NPs are capable of delivering Gd(3+) chelates for enhanced brain tumor imaging with a prolonged retention time of Gd(3+) when compared to the free Gd(3+) chelates. Collectively, these results show promising applications of the TAT-Au NPs for enhanced malignant brain tumor therapy and non-invasive imaging.
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Affiliation(s)
| | | | - Ramin Morshed
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Xiaobing Fan
- Department of Radiology, The University of Chicago, Chicago, Illinois, USA
| | - Michelle L. Wegscheid
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Derek A. Wainwright
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Yu Han
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Lingjiao Zhang
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Brenda Auffinger
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Alex L. Tobias
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Esther Rincón
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Bart Thaci
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Atique U. Ahmed
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
| | - Peter Warnke
- Department of Surgery, The University of Chicago, Chicago, Illinois, USA
| | - Chuan He
- Department of Chemistry, Institute of Biophysics Dynamics and Howard Hughes Medical Institute, The University of Chicago, Chicago, Illinois, USA
| | - Maciej S. Lesniak
- The Brain Tumor Center, The University of Chicago, Chicago, Illinois, USA, Fax: +1 773 834 2608
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Raafatnia S, Hickey OA, Holm C. Mobility reversal of polyelectrolyte-grafted colloids in monovalent salt solutions. PHYSICAL REVIEW LETTERS 2014; 113:238301. [PMID: 25526166 DOI: 10.1103/physrevlett.113.238301] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Indexed: 06/04/2023]
Abstract
We present molecular dynamics simulations on the electrophoresis of a negative colloid grafted with positive polyelectrolytes. Net-neutral colloids show a varying mobility in monovalent salt. For colloids with negative net charge the mobility is negative at low and positive at high salt concentrations. This mobility reversal is an electrokinetic effect, and thus different from that observed in multivalent salt. Our results agree with numerical calculations based on the Darcy-Brinkman formalism, with which we predict the mobility reversal to also occur for experimentally accessible colloids.
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Affiliation(s)
- Shervin Raafatnia
- Institut für Computerphysik, Universität Stuttgart, Allmandring 3, D-70569 Stuttgart, Germany
| | - Owen A Hickey
- Institut für Computerphysik, Universität Stuttgart, Allmandring 3, D-70569 Stuttgart, Germany
| | - Christian Holm
- Institut für Computerphysik, Universität Stuttgart, Allmandring 3, D-70569 Stuttgart, Germany
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45
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46
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Allison SA, Li F, Hill RJ. The Electrophoretic Mobility of a Weakly Charged “Soft” Sphere in a Charged Hydrogel: Application of the Lorentz Reciprocal Theorem. J Phys Chem B 2014; 118:8827-38. [DOI: 10.1021/jp5040618] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Stuart A. Allison
- Department
of Chemistry, Georgia State University, Atlanta, Georgia 30302-3965, United States
| | - Fei Li
- Department
of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
| | - Reghan J. Hill
- Department
of Chemical Engineering, McGill University, Montreal, Quebec H3A 0C5, Canada
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47
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Mahmoudi M, Meng J, Xue X, Liang XJ, Rahman M, Pfeiffer C, Hartmann R, Gil PR, Pelaz B, Parak WJ, del Pino P, Carregal-Romero S, Kanaras AG, Tamil Selvan S. Interaction of stable colloidal nanoparticles with cellular membranes. Biotechnol Adv 2014; 32:679-92. [DOI: 10.1016/j.biotechadv.2013.11.012] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2013] [Revised: 11/04/2013] [Accepted: 11/12/2013] [Indexed: 11/25/2022]
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48
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Spadavecchia J, Apchain E, Albéric M, Fontan E, Reiche I. One-step synthesis of collagen hybrid gold nanoparticles and formation on Egyptian-like gold-plated archaeological ivory. Angew Chem Int Ed Engl 2014; 53:8363-6. [PMID: 24966058 DOI: 10.1002/anie.201403567] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Indexed: 11/06/2022]
Abstract
A one-step method is reported to synthesize hybrid gold nanoparticles (AuNPs) by reduction of HAuCl4 in acetic solution in the presence of collagen (Col), dicarboxylic acid-terminated polyethylene glycol (PEG), and cetyltetrammonium bromide (CTAB) mixed with hydoxyapatite (HAP) as surfactants. Such formation process of AuNPs was shown to be responsible for purple stains naturally formed on Egyptianizing archaeological gilded ivories from 8th BC Syria. The understanding of this formation mechanism, which most likely involves a step with hybrid AuNPs, allows the establishing of an authenticity marker of ancient gold-plated ivories.
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Affiliation(s)
- Jolanda Spadavecchia
- Laboratoire de réactivité de surface (LRS), UMR 7197 CNRS, Sorbonne Universités-UPMC University Paris VI, 75005 Paris (France)
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49
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Spadavecchia J, Apchain E, Albéric M, Fontan E, Reiche I. One-Step Synthesis of Collagen Hybrid Gold Nanoparticles and Formation on Egyptian-like Gold-Plated Archaeological Ivory. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201403567] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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50
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Li F, Allison SA, Hill RJ. Nanoparticle gel electrophoresis: Soft spheres in polyelectrolyte hydrogels under the Debye–Hückel approximation. J Colloid Interface Sci 2014; 423:129-42. [DOI: 10.1016/j.jcis.2014.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 02/05/2014] [Accepted: 02/09/2014] [Indexed: 11/24/2022]
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