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Choi J, Kim BH. Ligands of Nanoparticles and Their Influence on the Morphologies of Nanoparticle-Based Films. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1685. [PMID: 39453021 PMCID: PMC11510505 DOI: 10.3390/nano14201685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2024] [Revised: 10/18/2024] [Accepted: 10/19/2024] [Indexed: 10/26/2024]
Abstract
Nanoparticle-based thin films are increasingly being used in various applications. One of the key factors that determines the properties and performances of these films is the type of ligands attached to the nanoparticle surfaces. While long-chain surfactants, such as oleic acid, are commonly employed to stabilize nanoparticles and ensure high monodispersity, these ligands often hinder charge transport due to their insulating nature. Although thermal annealing can remove the long-chain ligands, the removal process often introduces defects such as cracks and voids. In contrast, the use of short-chain organic or inorganic ligands can minimize interparticle distance, improving film conductivity, though challenges such as incomplete ligand exchange and residual barriers remain. Polymeric ligands, especially block copolymers, can also be employed to create films with tailored porosity. This review discusses the effects of various ligand types on the morphology and performance of nanoparticle-based films, highlighting the trade-offs between conductivity, structural integrity, and functionality.
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Affiliation(s)
- Jungwook Choi
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea;
| | - Byung Hyo Kim
- Department of Materials Science and Engineering, Soongsil University, Seoul 06978, Republic of Korea;
- Department of Green Chemistry and Materials Engineering, Soongsil University, Seoul 06978, Republic of Korea
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2
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Dubey C, Yadav A, Kachhap S, Singh SK, Gupta G, Singh SP, Singh AK. Effect of Mn 2+doping and DDAB-assisted postpassivation on the structural and optical properties of CsPb(Cl/Br) 3halide perovskite nanocrystals. Methods Appl Fluoresc 2024; 12:045004. [PMID: 39111336 DOI: 10.1088/2050-6120/ad6ca1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 08/07/2024] [Indexed: 08/22/2024]
Abstract
Cesium lead halide perovskite (CsPbX3; X = Cl, Br, I) nanocrystals showing intense band-edge emission and high photoluminescence quantum yield are known to be a potential candidate for application in optoelectronic devices. However, controlling toxicity due to the presence of Pb2+in lead-based halide perovskites is a major challenge for the environment that needs to be tackled cautiously. In this work, we have partially replaced Pb2+with Mn2+ions in the CsPb(Cl/Br)3nanocrystals and investigated their impact on the structural and optical properties. The Rietveld refinement shows that CsPbCl2Br nanocrystals possess a cubic crystal structure withPm3̅mspace group, the Mn2+doping results in the contraction of the unit cell. The CsPb(Cl/Br)3: Mn nanocrystals show a substantial change in the optical properties with an additional emission band at ∼588 nm through a d-d transition, changing the emission color from blue to pink. Here, a didodecyldimethylammonium bromide (DDAB) ligand that triggers both anion and ligand exchange in the CsPb(Cl/Br)3: Mn nanocrystals have been used to regulate the exchange reaction and tune the emission color of halide perovskites by changing the peak position and the PL intensities of band-edge and Mn2+defect states. We have also shown that oleic acid helps in the desorption of oleylamine capping from the CsPb(Cl/Br)3: Mn nanocrystal surfaces and DDAB, resulting in the substitution of Cl-with Br-as well as provides capping with shorter branched length ligand which led to increase in the overall PL intensity by many folds.
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Affiliation(s)
- Charu Dubey
- Department of Physical Sciences, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India
| | - Anjana Yadav
- Department of Physical Sciences, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India
| | - Santosh Kachhap
- Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi 221005, India
| | - Sunil Kumar Singh
- Department of Physics, Indian Institute of Technology (Banaras Hindu University) Varanasi 221005, India
| | - Govind Gupta
- CSIR-National Physical Laboratory, Dr K. S. Krishnan Marg, New Delhi 110012, India
| | | | - Akhilesh Kumar Singh
- Department of Physical Sciences, Banasthali Vidyapith, Banasthali, Rajasthan 304022, India
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3
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Rashmi, Sharma SK, Chaudhary V, Pala RGS, Sivakumar S. Rapid nucleation and optimal surface-ligand interaction stabilize wurtzite MnSe. Phys Chem Chem Phys 2024; 26:20837-20851. [PMID: 39044559 DOI: 10.1039/d4cp02294g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
Non-native structures (NNS) differ in discrete translational symmetry from the bulk ground state native structure (NS). To explore the extent of deconvolution of various factors relevant to the stabilization of the wurtzite/NNS of MnSe via a heat-up method, we performed experiments using various ligands (oleic acid, oleylamine, octadecylamine, stearic acid, and octadecene), solvents (tetraethylene glycol and octadecene), and precursor salts (manganese chloride and manganese acetate). Experiments suggest that oleic acid in the presence of tetraethylene glycol and oleylamine in the presence of octadecene stabilize wurtzite/NNS. Further, density functional theory (DFT) computations explore the interaction between the functional groups in ligands and the most exposed surfaces of wurtzite/NNS and rocksalt/NS polymorphs. Computations suggest that the interactions between relevant surface facets with carboxylic acid and the double bond functional groups suppress the phase transformation from NNS to NS. In addition, the ionizability of the precursor salt also determines the rate of formation of the metal-ligand complex and the rate of nucleation. Consequently, the formation rate of the Mn-ligand complex is expected to be greater in the case of chloride salt than acetate salt because the chloride salt has higher ionizability in ethylene glycol. From the above, we conclude that the kinetics of the wurtzite/NNS to rocksalt/NS phase transformation depends mainly on two factors: (1) nucleation/growth kinetics which is controlled by the ionizability of the precursor salt, solvent, and stability of the metal-ligand complex, and (2) the activation energy barrier of the NNS to NS conversion which is controlled by surface energy minimization with the ligand.
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Affiliation(s)
- Rashmi
- Materials Science Programme, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India.
| | - Shilendra Kumar Sharma
- Materials Science Programme, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India.
| | - Vivek Chaudhary
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
| | - Raj Ganesh S Pala
- Materials Science Programme, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India.
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
| | - Sri Sivakumar
- Materials Science Programme, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India.
- Department of Chemical Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
- Centre for Environmental Science and Engineering, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
- Centre for Nanosciences, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
- Gangwal School and Mehta Family Center for Engineering in Medicine, Indian Institute of Technology, Kanpur, Uttar Pradesh, 208016, India
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Tan L, Cao Y, Yan J, Mao K, Liu L, Wang X, Ye W, Harris RA, Zhang H. TiO 2 nanorod arrays@PDA/Ag with biomimetic polydopamine as binary mediators for duplex SERS detection of illegal food dyes. Anal Chim Acta 2024; 1287:342047. [PMID: 38182363 DOI: 10.1016/j.aca.2023.342047] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/11/2023] [Accepted: 11/18/2023] [Indexed: 01/07/2024]
Abstract
Based on TiO2 nanorod arrays@PDA/Ag (TNRs@PDA/Ag), a better surface-enhanced Raman scattering (SERS) sensor with effective enrichment and enhancement was investigated for duplex SERS detection of illicit food dyes. Biomimetic PDA functions as binary mediators by utilizing the structural characteristics of polydopamine (PDA), which include the conjugated structure and abundant hydrophilic groups. One PDA functioned as an electron transfer mediator to enhance the efficiency of electron transfer, and the other as an enrichment mediator to effectively enrich rhodamine B (RhB) and crystal violet (CV) through hydrogen bonding, π-π stacking, and electrostatic interactions. Individual and duplex detection of illicit food dyes (RhB and CV) was performed using TNRs@PDA/Ag to estimate SERS applications. Their linear equations and limits of detection of 1 nM for RhB and 5 nM for CV were derived. Individual and duplex food colour detection was successfully accomplished even in genuine chili meal with good results. The bifunctional TNRs@PDA/Ag-based highly sensitive and duplex SERS dye detection will have enormous potential for food safety monitoring.
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Affiliation(s)
- Lin Tan
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Functional Materials and Structural Design (Ministry of Education), Lanzhou University, Lanzhou 730000, China
| | - Yanqiang Cao
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Functional Materials and Structural Design (Ministry of Education), Lanzhou University, Lanzhou 730000, China
| | - Juanjuan Yan
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Functional Materials and Structural Design (Ministry of Education), Lanzhou University, Lanzhou 730000, China
| | - Kang Mao
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China
| | - Li Liu
- Center for Inspection of Gansu Drug Administration (Center for Vaccine Inspection of Gansu), Lanzhou 730030, China
| | - Xiaolong Wang
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
| | - Weichun Ye
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Special Functional Materials and Structural Design (Ministry of Education), Lanzhou University, Lanzhou 730000, China.
| | - R A Harris
- Department of Physics, University of the Free State, Bloemfontein 9301, South Africa.
| | - Hua Zhang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, 550081, China.
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Nedylakova M, Medinger J, Mirabello G, Lattuada M. Iron oxide magnetic aggregates: Aspects of synthesis, computational approaches and applications. Adv Colloid Interface Sci 2024; 323:103056. [PMID: 38056225 DOI: 10.1016/j.cis.2023.103056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 11/24/2023] [Accepted: 11/24/2023] [Indexed: 12/08/2023]
Abstract
Superparamagnetic magnetite nanoparticles have been central to numerous investigations in the past few decades for their use in many applications, such as drug delivery, medical diagnostics, magnetic separation, and material science. However, the properties of single magnetic nanoparticles are sometimes not sufficient to accomplish tasks where a strong magnetic response is required. In light of this, aggregated magnetite nanoparticles have been proposed as an alternative advanced material, which may expand and combine some of the advantages of single magnetic nanoparticles, including superparamagnetism, with an enhanced magnetic moment and increased colloidal stability. This review comprehensively discusses the current literature on aggregates made of magnetic iron oxide nanoparticles. This review is divided into three sections. First, the current synthetic strategies for magnetite nanoparticle aggregates are discussed, together with the influence of different stabilizers on the primary crystals and the final aggregate size and morphology. The second section is dedicated to computational approaches, such as density functional methods (which permit accurate predictions of electronic and magnetic properties and shed light on the behavior of surfactant molecules on iron oxide surfaces) and molecular dynamics simulations (which provide additional insight into the influence of ligands on the surface chemistry of iron oxide nanocrystals). The last section discusses current and possible future applications of iron oxide magnetic aggregates, including wastewater treatment, water purification, medical applications, and magnetic aggregates for materials displaying structural colors.
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Affiliation(s)
- Miroslava Nedylakova
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, Fribourg 1700, Switzerland
| | - Joelle Medinger
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, Fribourg 1700, Switzerland
| | - Giulia Mirabello
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, Fribourg 1700, Switzerland
| | - Marco Lattuada
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, Fribourg 1700, Switzerland.
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Riahi K, Dirba I, Ablets Y, Filatova A, Sultana SN, Adabifiroozjaei E, Molina-Luna L, Nuber UA, Gutfleisch O. Surfactant-driven optimization of iron-based nanoparticle synthesis: a study on magnetic hyperthermia and endothelial cell uptake. NANOSCALE ADVANCES 2023; 5:5859-5869. [PMID: 37881718 PMCID: PMC10597555 DOI: 10.1039/d3na00540b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/27/2023] [Indexed: 10/27/2023]
Abstract
This work examines the effect of changing the ratio of different surfactants in single-core iron-based nanoparticles with respect to their specific absorption rate in the context of magnetic hyperthermia and cellular uptake by human umbilical vein endothelial cells (HUVEC). Three types of magnetic nanoparticles were synthesized by separately adding oleic acid or oleylamine or a mixture of both (oleic acid/oleylamine) as surfactants. A carefully controlled thermal decomposition synthesis process led to monodispersed nanoparticles with a narrow size distribution. Spherical-shaped nanoparticles were mainly obtained for those synthesized with oleic acid, while the shape changed upon adding oleylamine. The combined use of oleic acid and oleylamine as surfactants in single-core iron-based nanoparticles resulted in a substantial saturation magnetization, reaching up to 140 A m2 kg-1 at room temperature. The interplay between these surfactants played a crucial role in achieving this high magnetic saturation. By modifying the surface of the magnetic nanoparticles using a mixture of two surfactants, the magnetic fluid hyperthermia heating rate was significantly improved compared to using a single surfactant type. This improvement can be attributed to the larger effective anisotropy achieved through the modification with both (oleic acid/oleylamine). The mixture of surfactants enhances the control of interparticle distance and influences the strength of dipolar interactions, ultimately leading to enhanced heating efficiency. Functionalization of the oleic acid-coated nanoparticles with trimethoxysilane results in the formation of a core-shell structure Fe@Fe3O4, showing exchange bias (EB) associated with the exchange anisotropy between the shell and the core. The biomedical relevance of our synthesized Fe@Fe3O4 nanoparticles was demonstrated by their efficient uptake by human umbilical vein endothelial cells (HUVECs) in a concentration-dependent manner. This remarkable cellular uptake highlights the potential of these nanoparticles in biomedical applications.
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Affiliation(s)
- K Riahi
- Functional Materials, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 16 64287 Darmstadt Germany
| | - I Dirba
- Functional Materials, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 16 64287 Darmstadt Germany
| | - Y Ablets
- Functional Materials, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 16 64287 Darmstadt Germany
| | - A Filatova
- Stem Cell and Developmental Biology, Technical University of Darmstadt 64287 Darmstadt Germany
| | - S N Sultana
- Functional Materials, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 16 64287 Darmstadt Germany
- Advanced Electron Microscopy Division, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 22 64287 Darmstadt Germany
| | - E Adabifiroozjaei
- Advanced Electron Microscopy Division, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 22 64287 Darmstadt Germany
| | - L Molina-Luna
- Advanced Electron Microscopy Division, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 22 64287 Darmstadt Germany
| | - U A Nuber
- Stem Cell and Developmental Biology, Technical University of Darmstadt 64287 Darmstadt Germany
| | - O Gutfleisch
- Functional Materials, Institute of Materials Science, Technical University of Darmstadt Peter-Grünberg-Str. 16 64287 Darmstadt Germany
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Mahmood AU, Rizvi MH, Tracy JB, Yingling YG. Solvent Effects in Ligand Stripping Behavior of Colloidal Nanoparticles. ACS NANO 2023. [PMID: 37311219 DOI: 10.1021/acsnano.3c01313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Inorganic colloidal nanoparticle (NP) properties can be tuned by stripping stabilizing ligands using a poor solvent. However, the mechanism behind ligand stripping is poorly understood, in part because in situ measurements of ligand stripping are challenging at the nanoscale. Here, we investigate ethanol solvent-mediated oleylamine ligand stripping from magnetite (Fe3O4) NPs in different compositions of ethanol/hexane mixtures using atomistic molecular dynamics (MD) simulations and thermogravimetric analysis (TGA). Our study elucidates a complex interplay of ethanol interactions with system components and indicates the existence of a threshold concentration of ∼34 vol % ethanol, above which ligand stripping saturates. Moreover, hydrogen bonding between ethanol and stripped ligands inhibits subsequent readsorption of the ligands on the NP surface. A proposed modification of the Langmuir isotherm explains the role of the enthalpy of mixing of the ligands and solvents on the ligand stripping mechanism. A good agreement between the MD predictions and TGA measurements of ligand stripping from Fe3O4 NPs validates the simulation observations. Our findings demonstrate that the ligand coverage of NPs can be controlled by using a poor solvent below the threshold concentration and highlight the importance of ligand-solvent interactions that modulate the properties of colloidal NPs. The study also provides an approach for a detailed in silico study of ligand stripping and exchange from colloidal NPs that are crucial for applications of NPs spanning self-assembly, optoelectronics, nanomedicine, and catalysis.
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Affiliation(s)
- Akhlak U Mahmood
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Mehedi H Rizvi
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Joseph B Tracy
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Yaroslava G Yingling
- Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695, United States
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Pontes MS, Santos JS, da Silva JL, Miguel TBAR, Miguel EC, Souza Filho AG, Garcia F, Lima SM, da Cunha Andrade LH, Arruda GJ, Grillo R, Caires ARL, Felipe Santiago E. Assessing the Fate of Superparamagnetic Iron Oxide Nanoparticles Carrying Usnic Acid as Chemical Cargo on the Soil Microbial Community. ACS NANO 2023; 17:7417-7430. [PMID: 36877273 DOI: 10.1021/acsnano.2c11985] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
In the present study we evaluate the effect of superparamagnetic iron oxide nanoparticles (SPIONs) carrying usnic acid (UA) as chemical cargo on the soil microbial community in a dystrophic red latosol (oxysol). Herein, 500 ppm UA or SPIONs-framework carrying UA were diluted in sterile ultrapure deionized water and applied by hand sprayer on the top of the soil. The experiment was conducted in a growth chamber at 25 °C, with a relative humidity of 80% and a 16 h/8 h light-dark cycle (600 lx light intensity) for 30 days. Sterile ultrapure deionized water was used as the negative control; uncapped and oleic acid (OA) capped SPIONs were also tested to assess their potential effects. Magnetic nanostructures were synthesized by a coprecipitation method and characterized by scanning and transmission electron microscopy (SEM and TEM), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), zeta potential, hydrodynamic diameter, magnetic measurements, and release kinetics of chemical cargo. Uncapped and OA-capped SPIONs did not significantly affect soil microbial community. Our results showed an impairment in the soil microbial community exposed to free UA, leading to a general decrease in negative effects on soil-based parameters when bioactive was loaded into the nanoscale magnetic carrier. Besides, compared to control, the free UA caused a significant decrease in microbial biomass C (39%), on the activity of acid protease (59%), and acid phosphatase (23%) enzymes, respectively. Free UA also reduced eukaryotic 18S rRNA gene abundance, suggesting a major impact on fungi. Our findings indicate that SPIONs as bioherbicide nanocarriers can reduce the negative impacts on soil. Therefore, nanoenabled biocides may improve agricultural productivity, which is important for food security due to the need of increasing food production.
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Affiliation(s)
- Montcharles S Pontes
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, Brazil
| | - Jaqueline Silva Santos
- Genetics Department, Luiz de Queiroz College of Agriculture (ESALQ), University of São Paulo (USP), Piracicaba, 13418-900, Brazil
| | - José Luiz da Silva
- Department of Analytical, Physico-Chemical and Inorganic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), Araraquara, 14800-060, Brazil
| | - Thaiz B A R Miguel
- Laboratory of Biotechnology, Department of Food Engineering (DEAL), Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Emilio Castro Miguel
- Laboratory of Biomaterials, Department of Metallurgical and Materials Engineering, Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Antonio G Souza Filho
- Department of Physics, Federal University of Ceará (UFC), Fortaleza, 60440-554, Brazil
| | - Flavio Garcia
- Brazilian Center for Research in Physics, Urca, Rio de Janeiro 22290-180, Brazil
| | - Sandro Marcio Lima
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Luís Humberto da Cunha Andrade
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Gilberto J Arruda
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
| | - Renato Grillo
- São Paulo State University (UNESP), Department of Physics and Chemistry, School of Engineering, Ilha Solteira, São Paulo 15385-000, Brazil
| | - Anderson R L Caires
- Optics and Photonics Group, Institute of Physics, Federal University of Mato Grosso do Sul (UFMS), Campo Grande, 79070-900, Brazil
| | - Etenaldo Felipe Santiago
- Natural Resources Program, Center for Natural Resources Study (CERNA), Mato Grosso do Sul State University (UEMS), Dourados, 79804-970, Brazil
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Lopes J, Ferreira-Gonçalves T, Ascensão L, Viana AS, Carvalho L, Catarino J, Faísca P, Oliva A, de Barros DPC, Rodrigues CMP, Gaspar MM, Reis CP. Safety of Gold Nanoparticles: From In Vitro to In Vivo Testing Array Checklist. Pharmaceutics 2023; 15:pharmaceutics15041120. [PMID: 37111608 PMCID: PMC10141475 DOI: 10.3390/pharmaceutics15041120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/20/2023] [Accepted: 03/28/2023] [Indexed: 04/05/2023] Open
Abstract
In recent years, gold nanoparticles (AuNPs) have aroused the interest of many researchers due to their unique physicochemical and optical properties. AuNPs are being explored in a variety of biomedical fields, either in diagnostics or therapy, particularly for localized thermal ablation of cancer cells after light irradiation. Besides the promising therapeutic potential of AuNPs, their safety constitutes a highly important issue for any medicine or medical device. For this reason, in the present work, the production and characterization of physicochemical properties and morphology of AuNPs coated with two different materials (hyaluronic and oleic acids (HAOA) and bovine serum albumin (BSA)) were firstly performed. Based on the above importantly referred issue, the in vitro safety of developed AuNPs was evaluated in healthy keratinocytes, human melanoma, breast, pancreatic and glioblastoma cancer cells, as well as in a three-dimensional human skin model. Ex vivo and in vivo biosafety assays using, respectively, human red blood cells and Artemia salina were also carried out. HAOA-AuNPs were selected for in vivo acute toxicity and biodistribution studies in healthy Balb/c mice. Histopathological analysis showed no significant signs of toxicity for the tested formulations. Overall, several techniques were developed in order to characterize the AuNPs and evaluate their safety. All these results support their use for biomedical applications.
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Affiliation(s)
- Joana Lopes
- Research Institute for Medicines, iMed.ULisboa—Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal
| | - Tânia Ferreira-Gonçalves
- Research Institute for Medicines, iMed.ULisboa—Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Lia Ascensão
- Centro de Estudos do Ambiente e do Mar (CESAM Lisboa), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
| | - Ana S. Viana
- Centro de Química Estrutural, Institute of Molecular Sciences, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Lina Carvalho
- Central Testing Laboratory, Campus Universitário de Santiago, University of Aveiro, 3810-193 Aveiro, Portugal
| | - José Catarino
- Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
| | - Pedro Faísca
- Faculty of Veterinary Medicine, Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal
- Instituto Gulbenkian de Ciência, R. Q.ta Grande 6 2780, 2780-156 Oeiras, Portugal
| | - Abel Oliva
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
- iBET, Instituto de Biologia Experimental e Tecnológica, Av. da República, 2780-157 Oeiras, Portugal
| | - Dragana P. C. de Barros
- Instituto de Tecnologia Química e Biológica António Xavier (ITQB), Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Cecília M. P. Rodrigues
- Research Institute for Medicines, iMed.ULisboa—Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal
| | - Maria Manuela Gaspar
- Research Institute for Medicines, iMed.ULisboa—Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal
| | - Catarina Pinto Reis
- Research Institute for Medicines, iMed.ULisboa—Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal
- Instituto de Biofísica e Engenharia Biomédica (IBEB), Faculdade de Ciências, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal
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10
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Bhattacharjee K, Prasad BLV. Surface functionalization of inorganic nanoparticles with ligands: a necessary step for their utility. Chem Soc Rev 2023; 52:2573-2595. [PMID: 36970981 DOI: 10.1039/d1cs00876e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The importance of protecting inorganic nanoparticles with organic ligands and thus imparting the needed stabilization as colloidal dispersions for their potential applications is highlighted in this review.
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Affiliation(s)
- Kaustav Bhattacharjee
- Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road, Pune 411008, India.
| | - Bhagavatula L V Prasad
- Physical and Materials Chemistry Division, National Chemical Laboratory (CSIR-NCL) Dr Homi Bhabha Road, Pune 411008, India.
- Academy of Scientific and Innovation Research (AcSIR), Ghaziabad 201002, India
- Center for Nano and Soft Matter Sciences, Bangalore 562162, India
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11
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Hansen solubility parameters and green nanocarrier based removal of trimethoprim from contaminated aqueous solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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12
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Getting insight into how iron(III) oleate precursors affect the features of magnetite nanoparticles. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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13
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Mourdikoudis S, Menelaou M, Fiuza-Maneiro N, Zheng G, Wei S, Pérez-Juste J, Polavarapu L, Sofer Z. Oleic acid/oleylamine ligand pair: a versatile combination in the synthesis of colloidal nanoparticles. NANOSCALE HORIZONS 2022; 7:941-1015. [PMID: 35770698 DOI: 10.1039/d2nh00111j] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A variety of colloidal chemical approaches has been developed in the last few decades for the controlled synthesis of nanostructured materials in either water or organic solvents. Besides the precursors, the solvents, reducing agents, and the choice of surfactants are crucial for tuning the composition, morphology and other properties of the resulting nanoparticles. The ligands employed include thiols, amines, carboxylic acids, phosphines and phosphine oxides. Generally, adding a single ligand to the reaction mixture is not always adequate to yield the desired features. In this review, we discuss in detail the role of the oleic acid/oleylamine ligand pair in the chemical synthesis of nanoparticles. The combined use of these ligands belonging to two different categories of molecules aims to control the size and shape of nanoparticles and prevent their aggregation, not only during their synthesis but also after their dispersion in a carrier solvent. We show how the different binding strengths of these two molecules and their distinct binding modes on specific facets affect the reaction kinetics toward the production of nanostructures with tailored characteristics. Additional functions, such as the reducing function, are also noted, especially for oleylamine. Sometimes, the carboxylic acid will react with the alkylamine to form an acid-base complex, which may serve as a binary capping agent and reductant; however, its reducing capacity may range from lower to much lower than that of oleylamine. The types of nanoparticles synthesized in the simultaneous presence of oleic acid and oleylamine and discussed herein include metal oxides, metal chalcogenides, metals, bimetallic structures, perovskites, upconversion particles and rare earth-based materials. Diverse morphologies, ranging from spherical nanoparticles to anisotropic, core-shell and hetero-structured configurations are presented. Finally, the relation between tuning the resulting surface and volume nanoparticle properties and the relevant applications is highlighted.
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Affiliation(s)
- Stefanos Mourdikoudis
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Melita Menelaou
- Department of Chemical Engineering, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology, 3036 Limassol, Cyprus.
| | - Nadesh Fiuza-Maneiro
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Guangchao Zheng
- School of Physics and Microelectronics, Zhengzhou University, Zhengzhou, 450001, China
| | - Shuangying Wei
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
| | - Jorge Pérez-Juste
- CINBIO, Universidade de Vigo, Departamento de Química Física, Campus Universitario As Lagoas, Marcosende, 36310 Vigo, Spain
- Galicia Sur Health Research Institute (IIS Galicia Sur), 36310 Vigo, Spain
| | - Lakshminarayana Polavarapu
- CINBIO, Universidade de Vigo, Materials Chemistry and Physics, Department of Physical Chemistry, Campus Universitario Lagoas Marcosende, 36310 Vigo, Spain.
| | - Zdeněk Sofer
- Department of Inorganic Chemistry, University of Chemistry and Technology Prague, Technicka 5, 16628 - Prague 6, Czech Republic.
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14
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Preparation and in vivo imaging of a novel potential αvβ3 targeting PET/MRI dual-modal imaging agent. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08431-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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15
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Harris R. The PEGylated and non-PEGylated interaction of the anticancer drug 5-fluorouracil with paramagnetic Fe3O4 nanoparticles as drug carrier. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119515] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Moreira Da Silva C, Amara H, Fossard F, Girard A, Loiseau A, Huc V. Colloidal synthesis of nanoparticles: from bimetallic to high entropy alloys. NANOSCALE 2022; 14:9832-9841. [PMID: 35771172 DOI: 10.1039/d2nr02478k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
At the nanoscale, the synthesis of a random alloy (i.e. without phase segregation, whatever the composition) by chemical synthesis remains a difficult task, even for simple binary type systems. In this context, a unique approach based on the colloidal route is proposed enabling the synthesis of face-centred cubic and monodisperse bimetallic, trimetallic, tetrametallic and pentametallic nanoparticles with diameters around 5 nm as solid solutions. The Fe-Co-Ni-Pt-Ru alloy (and its subsets) is considered a challenging task as each element has fairly different physico-chemical properties. Particles are prepared by temperature-assisted co-reduction of metal acetylacetonate precursors in the presence of surfactants. It is highlighted how the correlation between precursors' degradation temperatures and reduction potential values of the metal cations is the driving force to achieve a homogeneous distribution of all elements within the nanoparticles.
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Affiliation(s)
- Cora Moreira Da Silva
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay, Châtillon, 92322, France.
| | - Hakim Amara
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay, Châtillon, 92322, France.
- Université de Paris, Laboratoire Matériaux et Phénomènes Quantiques (MPQ), CNRS-UMR7162, 75013 Paris, France
| | - Fédéric Fossard
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay, Châtillon, 92322, France.
| | - Armelle Girard
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay, Châtillon, 92322, France.
- Université Versailles Saint-Quentin, U. Paris-Saclay, Versailles, 78035, France
| | - Annick Loiseau
- Laboratoire d'Étude des Microstructures, CNRS, ONERA, U. Paris-Saclay, Châtillon, 92322, France.
| | - Vincent Huc
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS, Paris Sud, U. Paris-Saclay, Orsay, 91045, France.
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17
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Venkatesan K, Haider N, Yusuf M, Hussain A, Afzal O, Yasmin S, Altamimi AS. Water/transcutol/lecithin/M−812 green cationic nanoemulsion to treat oxytetracycline contaminated aqueous bulk solution. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Shahid M, Hussain A, Khan AA, Ramzan M, Alaofi AL, Alanazi AM, Alanazi MM, Rauf MA. Ketoconazole-Loaded Cationic Nanoemulsion: In Vitro- Ex Vivo- In Vivo Evaluations to Control Cutaneous Fungal Infections. ACS OMEGA 2022; 7:20267-20279. [PMID: 35721949 PMCID: PMC9201893 DOI: 10.1021/acsomega.2c02219] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 05/20/2022] [Indexed: 06/15/2023]
Abstract
An attempt has been made to optimize ketoconazole (KTZ)-loaded cationic nanoemulsion for topical delivery followed by in vitro, ex vivo, and in vivo evaluations. Central composite design suggested a total of 13 outcomes at 3 factors and 2 levels against 6 responses. Formulations were characterized for globular size, polydispersity index, pH, ζ potential, % entrapment efficiency (% EE), and drug content. Moreover, the optimized KTZ-CNM13 was compared against drug suspension (KTZ-SUS), commercial cream, and anionic nanoemulsion for in vitro drug release, ex vivo permeation, in vitro hemolysis, antifungal assay, in vivo dermal irritancy, and long-term stability. KTZ-CNM13 was found to have a low size (239 nm), an optimal ζ potential (+22.7 mV), a high % EE (89.1%), a spherical shape, a high drug content (98.9%), and a high numerical desirability value (1.0). In vitro drug release behavior of KTZ from KTZ-CNM13 was 7.54- and 1.71-folds higher than those of KTZ-ANM13 and KTZ-SUS, respectively, at 24 h. The permeation rate values were ordered as KTZ-CNM13 > KTZ-ANM13 > KTZ-MKT > KTZ-SUP due to various studied factors. High values of zone of inhibition for KTZ-CNM13 were observed against Candida albicans, Candida glabrata, Candida tropicalis, and Candida krusei as compared to KTZ-SUS. In vitro hemolysis and in vivo irritation studied confirmed the safety concern of the nanoemulsion at the explored composition. Long-term stability result revealed a stable product at the explored temperature for a year. Conclusively, cationic nanoemulsion is a promising approach to deliver KTZ for high permeation and therapeutic efficacy.
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Affiliation(s)
- Mudassar Shahid
- Department
of Pharmaceutics, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Afzal Hussain
- Department
of Pharmaceutics, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Azmat Ali Khan
- Pharmaceutical
Biotechnology Laboratory, Department of Pharmaceutical Chemistry,
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohhammad Ramzan
- School
of Pharmaceutical Sciences, Lovely Professional
University, Phagwara, Jalandhar, Punjab 144411, India
| | - Ahmed L. Alaofi
- Department
of Pharmaceutics, College of Pharmacy, King
Saud University, Riyadh 11451, Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical
Biotechnology Laboratory, Department of Pharmaceutical Chemistry,
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad M. Alanazi
- Pharmaceutical
Biotechnology Laboratory, Department of Pharmaceutical Chemistry,
College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohd Ahmar Rauf
- Department
of Pharmacy, Eugene Applebaum, College of Pharmacy and Health Sciences, Wayne State University, Detroit, Michigan 48201, United States
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19
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Hadadian Y, Masoomi H, Dinari A, Ryu C, Hwang S, Kim S, Cho BK, Lee JY, Yoon J. From Low to High Saturation Magnetization in Magnetite Nanoparticles: The Crucial Role of the Molar Ratios Between the Chemicals. ACS OMEGA 2022; 7:15996-16012. [PMID: 35571799 PMCID: PMC9097206 DOI: 10.1021/acsomega.2c01136] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/12/2022] [Indexed: 05/28/2023]
Abstract
In this study, a comprehensive characterization of iron oxide nanoparticles synthesized by using a simple one-pot thermal decomposition route is presented. In order to obtain monodisperse magnetite nanoparticles with high saturation magnetization, close to the bulk material, the molar ratios between the starting materials (solvents, reducing agents, and surfactants) were varied. Two out of nine conditions investigated in this study resulted in monodisperse iron oxide nanoparticles with high saturation magnetization (90 and 93% of bulk magnetite). The X-ray diffraction analyses along with the inspection of the lattice structure through transmission electron micrographs revealed that the main cause of the reduced magnetization in the other seven samples is likely due to the presence of distortion and microstrain in the particles. Although the thermogravimetric analysis, Raman and Fourier transform infrared spectroscopies confirmed the presence of covalently bonded oleic acid on the surface of all the samples, the particles with higher polydispersity and the lowest surface coating molecules showed the lowest saturation magnetization. Based on the observed results, it could be speculated that the changes in the kinetics of the reactions, induced by varying the molar ratio of the starting chemicals, can lead to the production of the particles with higher polydispersity and/or lattice deformation in their crystal structures. Finally, it was concluded that the experimental conditions for obtaining high-quality iron oxide nanoparticles, particularly the molar ratios and the heating profile, should not be chosen independently; for any specific molar ratio, there may exist a specific heating profile or vice versa. Because this synthetic consideration has rarely been reported in the literature, our results can give insights into the design of iron oxide nanoparticles with high saturation magnetization for different applications.
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Affiliation(s)
- Yaser Hadadian
- Research
Center for Nanorobotics in Brain, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
- School
of Integrated Technology, Gwangju Institute
of Science and Technology, Gwangju 61005, Republic of Korea
| | - Hajar Masoomi
- Research
Center for Nanorobotics in Brain, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
- School
of Integrated Technology, Gwangju Institute
of Science and Technology, Gwangju 61005, Republic of Korea
| | - Ali Dinari
- Research
Center for Nanorobotics in Brain, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
- School
of Integrated Technology, Gwangju Institute
of Science and Technology, Gwangju 61005, Republic of Korea
| | - Chiseon Ryu
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic
of Korea
| | - Seong Hwang
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic
of Korea
| | - Seokjae Kim
- Korea
Institute of Medical Microrobotics (KIMIRo), 43-26 Cheomdangwagi-ro, Buk-gu, Gwangju 61011, Republic of Korea
| | - Beong ki Cho
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic
of Korea
| | - Jae Young Lee
- School
of Materials Science and Engineering, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic
of Korea
| | - Jungwon Yoon
- Research
Center for Nanorobotics in Brain, Gwangju
Institute of Science and Technology, Gwangju 61005, Republic of Korea
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20
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Sarif M, Jegel O, Gazanis A, Hartmann J, Plana-Ruiz S, Hilgert J, Frerichs H, Viel M, Panthöfer M, Kolb U, Tahir MN, Schemberg J, Kappl M, Heermann R, Tremel W. High-throughput synthesis of CeO 2 nanoparticles for transparent nanocomposites repelling Pseudomonas aeruginosa biofilms. Sci Rep 2022; 12:3935. [PMID: 35273241 PMCID: PMC8913809 DOI: 10.1038/s41598-022-07833-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/11/2022] [Indexed: 12/17/2022] Open
Abstract
Preventing bacteria from adhering to material surfaces is an important technical problem and a major cause of infection. One of nature's defense strategies against bacterial colonization is based on the biohalogenation of signal substances that interfere with bacterial communication. Biohalogenation is catalyzed by haloperoxidases, a class of metal-dependent enzymes whose activity can be mimicked by ceria nanoparticles. Transparent CeO2/polycarbonate surfaces that prevent adhesion, proliferation, and spread of Pseudomonas aeruginosa PA14 were manufactured. Large amounts of monodisperse CeO2 nanoparticles were synthesized in segmented flow using a high-throughput microfluidic benchtop system using water/benzyl alcohol mixtures and oleylamine as capping agent. This reduced the reaction time for nanoceria by more than one order of magnitude compared to conventional batch methods. Ceria nanoparticles prepared by segmented flow showed high catalytic activity in halogenation reactions, which makes them highly efficient functional mimics of haloperoxidase enzymes. Haloperoxidases are used in nature by macroalgae to prevent formation of biofilms via halogenation of signaling compounds that interfere with bacterial cell-cell communication ("quorum sensing"). CeO2/polycarbonate nanocomposites were prepared by dip-coating plasma-treated polycarbonate panels in CeO2 dispersions. These showed a reduction in bacterial biofilm formation of up to 85% using P. aeruginosa PA14 as model organism. Besides biofilm formation, also the production of the virulence factor pyocyanin in is under control of the entire quorum sensing systems P. aeruginosa. CeO2/PC showed a decrease of up to 55% in pyocyanin production, whereas no effect on bacterial growth in liquid culture was observed. This indicates that CeO2 nanoparticles affect quorum sensing and inhibit biofilm formation in a non-biocidal manner.
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Affiliation(s)
- Massih Sarif
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Olga Jegel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Athanasios Gazanis
- Institut Für Molekulare Physiologie, Mikrobiologie und Biotechnologie, Johannes-Gutenberg-Universität Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany
| | - Jens Hartmann
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Sergi Plana-Ruiz
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
- Department of Materials and Geoscience, Technical University Darmstadt, Petersenstrasse 23, 64287, Darmstadt, Germany
| | - Jan Hilgert
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Hajo Frerichs
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Melanie Viel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Martin Panthöfer
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
| | - Ute Kolb
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany
- Department of Materials and Geoscience, Technical University Darmstadt, Petersenstrasse 23, 64287, Darmstadt, Germany
| | - Muhammad Nawaz Tahir
- Chemistry Department, King Fahd University of Petroleum and Materials, Dhahran, 31261, Saudi Arabia
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), King Fahd University of Petroleum and & Minerals, Dhahran, 31261, Saudi Arabia
| | - Jörg Schemberg
- Institut Für Bioprozess-Und Analysenmesstechnik E.V., Rosenhof, 37308, Heilbad Heiligenstadt, Germany
| | - Michael Kappl
- Max-Planck-Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
| | - Ralf Heermann
- Institut Für Molekulare Physiologie, Mikrobiologie und Biotechnologie, Johannes-Gutenberg-Universität Mainz, Hanns-Dieter-Hüsch-Weg 17, 55128, Mainz, Germany.
| | - Wolfgang Tremel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128, Mainz, Germany.
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21
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Li T, Gao C, Wang W, Teng Y, Li X, Wang H. Strong influence of degree of substitution on carboxymethyl cellulose stabilized sulfidated nanoscale zero-valent iron. JOURNAL OF HAZARDOUS MATERIALS 2022; 425:128057. [PMID: 34910998 DOI: 10.1016/j.jhazmat.2021.128057] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 11/24/2021] [Accepted: 12/07/2021] [Indexed: 06/14/2023]
Abstract
Carboxymethyl cellulose (CMC) has been widely adopted as stabilizer to enhance the subsurface mobility of nanoscale zerovalent iron (nZVI). However, CMC surface modification also cause severe decrease of the longevity and electron utilization efficiency (εe) of nZVI, which is still not well understood. In this study, we demonstrate the negative influence of CMC on the properties of sulfidated nZVI (S-nZVI) could be reversed by increasing the degree of substitution (D.S.) of CMC. Consistent with previous study, the sample CMC-S-nZVI prepared with commercial CMC with degree of substitution (D.S.) of 0.75 exhibited a considerable low longevity of 33 days with εe of 4.5%, much lower than that of sulfidated nZVI (S-nZVI, 113 days and 13%). In sharp contrast, the sample HCMC-S-nZVI synthesized with CMC with super high D.S. of 1.76 demonstrated significantly enhanced longevity of 139 days and εe of 20%. The enhancement was attributed to compatible molecular structure of CMC with super high D.S. Moreover, the HCMC-S-nZVI also exhibited higher mobility in porous media than CMC-S-nZVI. Our work provides a feasible way to prepare S-nZVI with desired properties including high subsurface transportability, high longevity and high εe.
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Affiliation(s)
- Tielong Li
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China.
| | - Chaolin Gao
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China
| | - Wei Wang
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China
| | - Yaxin Teng
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China
| | - Xiao Li
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China
| | - Haitao Wang
- Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), College of Environmental Science and Engineering, Nankai University, Tianjin 300350 China.
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22
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Lee S, Hoyer CE, Liao C, Li X, Holmberg VC. Phase-Controlled Synthesis and Quasi-Static Dielectric Resonances in Silver Iron Sulfide (AgFeS 2 ) Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104975. [PMID: 34923741 DOI: 10.1002/smll.202104975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 11/21/2021] [Indexed: 06/14/2023]
Abstract
Ternary metal-chalcogenide semiconductor nanocrystals are an attractive class of materials due to their tunable optoelectronic properties that result from a wide range of compositional flexibility and structural diversity. Here, the phase-controlled synthesis of colloidal silver iron sulfide (AgFeS2 ) nanocrystals is reported and their resonant light-matter interactions are investigated. The product composition can be shifted selectively from tetragonal to orthorhombic by simply adjusting the coordinating ligand concentration, while keeping the other reaction parameters unchanged. The results show that excess ligands impact precursor reactivity, and consequently the nanocrystal growth rate, thus deterministically dictating the resulting crystal structure. Moreover, it is demonstrated that the strong ultraviolet-visible extinction peak exhibited by AgFeS2 nanocrystals is a consequence of a quasi-static dielectric resonance (DR), analogous to the optical response observed in CuFeS2 nanocrystals. Spectroscopic studies and computational calculations confirm that a negative permittivity at ultraviolet/visible frequencies arises due to the electronic structure of these intermediate-band (IB) semiconductor nanocrystals, resulting in a DR consisting of resonant valence-band-to-intermediate-band excitations, as opposed to the well-known localized surface plasmon resonance response typically observed in metallic nanostructures. Overall, these results expand the current library of an underexplored class of IB semiconductors with unique optical properties, and also enrich the understanding of DRs in ternary metal-iron-sulfide nanomaterials.
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Affiliation(s)
- Soohyung Lee
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195-1750, USA
| | - Chad E Hoyer
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1700, USA
| | - Can Liao
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1700, USA
| | - Xiaosong Li
- Department of Chemistry, University of Washington, Seattle, WA, 98195-1700, USA
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195-1652, USA
- Clean Energy Institute, University of Washington, Seattle, WA, 98195-1653, USA
| | - Vincent C Holmberg
- Department of Chemical Engineering, University of Washington, Seattle, WA, 98195-1750, USA
- Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA, 98195-1652, USA
- Clean Energy Institute, University of Washington, Seattle, WA, 98195-1653, USA
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23
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Hoisang W, Uematsu T, Torimoto T, Kuwabata S. Surface ligand chemistry on quaternary Ag(In x Ga 1-x )S 2 semiconductor quantum dots for improving photoluminescence properties. NANOSCALE ADVANCES 2022; 4:849-857. [PMID: 36131838 PMCID: PMC9419514 DOI: 10.1039/d1na00684c] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 12/08/2021] [Indexed: 06/15/2023]
Abstract
Ternary and quaternary semiconductor quantum dots (QDs) are candidates for cadmium-free alternatives. Among these, semiconductors containing elements from groups 11, 13, and 16 (i.e., I-III-VI2) are attracting increasing attention since they are direct semiconductors whose bandgap energies in the bulk state are tunable between visible and near infrared. The quaternary system of alloys consisting of silver indium sulfide (AgInS2; bandgap energy: E g = 1.8 eV) and silver gallium sulfide (AgGaS2; E g = 2.4 eV) (i.e., Ag[In x Ga1-x ]S2 (AIGS)) enables bandgap tuning over a wide range of visible light. However, the photoluminescence (PL) quantum yield (10-20%) of AIGS QDs is significantly lower than that of AgInS2 (60-70%). The present study investigates how to improve the PL quantum yield of AIGS QDs via surface ligand engineering. Firstly, the use of a mixture of oleic acid and oleylamine, instead of only oleylamine, as the solvent for the QD synthesis was attempted, and a threefold improvement of the PL quantum yield was achieved. Subsequently, a post-synthetic ligand exchange was performed. Although the addition of alkylphosphine, which is known as an L-type ligand, improved the PL efficiency only by 20%, the use of metal halides, which are categorized as Z-type ligands, demonstrated a twofold to threefold improvement of the PL quantum yield, with the highest value reaching 73.4%. The same procedure was applied to the band-edge emitting core/shell-like QDs that were synthesized in one batch based on our previous findings. While the as-prepared core/shell-like QDs exhibited a PL quantum yield of only 9%, the PL quantum yield increased to 49.5% after treatment with metal halides.
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Affiliation(s)
- Watcharaporn Hoisang
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Taro Uematsu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
| | - Tsukasa Torimoto
- Department of Materials Chemistry, Graduate School of Engineering, Nagoya University Chikusa-ku Nagoya 464-8603 Japan
| | - Susumu Kuwabata
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University 2-1 Yamada-oka Suita Osaka 565-0871 Japan
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24
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Loedolff MJ, Fuller RO, Nealon GL, Saunders M, Spackman MA, Koutsantonis GA. Solution-phase decomposition of ferrocene into wüstite-iron oxide core-shell nanoparticles. Dalton Trans 2022; 51:1603-1611. [PMID: 34994360 DOI: 10.1039/d1dt03222d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an improved method for the controlled solvent-phase decomposition of ferrocene into highly crystalline monodisperse iron oxide nanoparticles at relatively low temperatures. Solution-phase decomposition of ferrocene into nanoparticles has received little attention in the literature, due to the percieved stability of ferrocene. However, we synthesised wüstite FeO-iron oxide core-shell nanoparticles by thermally decomposing ferrocene in 1-octadecene solvent and in the presence of oleic acid and oleylamine, as surfactants. We report procedures that provide cubic and spherical core-shell iron oxide nanoparticles whose size (29.3 ± 2.3 nm for spheres, 38.6 ± 6.9 nm for distorted cubes and 23.5 ± 2.4 nm for distorted cubes with concave faces) and shape can be controlled through simple adjustments to reaction parameters. Transmission electron microscopy, scanning transmission electron microscopy, energy dispersive X-ray spectroscopy, electron energy-loss spectroscopy and powder X-ray diffraction analysis methods were used to characterise the nanoparticles.
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Affiliation(s)
- Matthys J Loedolff
- School of Molecular Sciences, The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia.
| | - Rebecca O Fuller
- School of Molecular Sciences, The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia.
| | - Gareth L Nealon
- Centre for Microscopy, Characterisation and Analysis (CMCA), The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Martin Saunders
- School of Molecular Sciences, The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia. .,Centre for Microscopy, Characterisation and Analysis (CMCA), The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia
| | - Mark A Spackman
- School of Molecular Sciences, The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia.
| | - George A Koutsantonis
- School of Molecular Sciences, The University of Western Australia (M310), 35 Stirling Highway, Crawley, Western Australia, 6009, Australia.
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25
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Zhao Y, Yao Z, Snow CD, Xu Y, Wang Y, Xiu D, Belfiore LA, Tang J. Stable Fluorescence of Eu 3+ Complex Nanostructures Beneath a Protein Skin for Potential Biometric Recognition. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2462. [PMID: 34578776 PMCID: PMC8469943 DOI: 10.3390/nano11092462] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 09/01/2021] [Accepted: 09/12/2021] [Indexed: 11/16/2022]
Abstract
We designed and realized highly fluorescent nanostructures composed of Eu3+ complexes under a protein coating. The nanostructured material, confirmed by photo-induced force microscopy (PiFM), includes a bottom fluorescent layer and an upper protein layer. The bottom fluorescent layer includes Eu3+ that is coordinated by 1,10-phenanthroline (Phen) and oleic acid (O). The complete complexes (OEu3+Phen) formed higher-order structures with diameter 40-150 nm. Distinctive nanoscale striations reminiscent of fingerprints were observed with a high-resolution transmission electron microscope (HRTEM). Stable fluorescence was increased by the addition of Eu3+ coordinated by Phen and 2-thenoyltrifluoroacetone (TTA), and confirmed by fluorescence spectroscopy. A satisfactory result was the observation of red Eu3+ complex emission through a protein coating layer with a fluorescence microscope. Lanthanide nanostructures of these types might ultimately prove useful for biometric applications in the context of human and non-human tissues. The significant innovations of this work include: (1) the structural set-up of the fluorescence image embedded under protein "skin"; and (2) dual confirmations of nanotopography and unique nanofingerprints under PiFM and under TEM, respectively.
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Affiliation(s)
- Yue Zhao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
| | - Ziyu Yao
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
| | - Christopher D. Snow
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Yanan Xu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
| | - Yao Wang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
| | - Dan Xiu
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
| | - Laurence A. Belfiore
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
- Department of Chemical and Biological Engineering, Colorado State University, Fort Collins, CO 80523, USA
| | - Jianguo Tang
- Institute of Hybrid Materials, National Center of International Joint Research for Hybrid Materials Technology, National Base of International Sci. & Tech. Cooperation on Hybrid Materials, College of Materials Science and Engineering, Qingdao University, 308 Ningxia Road, Qingdao 266071, China; (Y.Z.); (Z.Y.); (Y.X.); (Y.W.); (D.X.); (L.A.B.)
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26
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Subcutaneously Injectable Hyaluronic Acid Hydrogel for Sustained Release of Donepezil with Reduced Initial Burst Release: Effect of Hybridization of Microstructured Lipid Carriers and Albumin. Pharmaceutics 2021; 13:pharmaceutics13060864. [PMID: 34208289 PMCID: PMC8230846 DOI: 10.3390/pharmaceutics13060864] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/08/2021] [Accepted: 06/08/2021] [Indexed: 12/23/2022] Open
Abstract
The daily oral administration of acetylcholinesterase (AChE) inhibitors for Alzheimer’s disease features low patient compliance and can lead to low efficacy or high toxicity owing to irregular intake. Herein, we developed a subcutaneously injectable hyaluronic acid hydrogel (MLC/HSA hydrogel) hybridized with microstructured lipid carriers (MLCs) and human serum albumin (HSA) for the sustained release of donepezil (DNP) with reduced initial burst release. The lipid carrier was designed to have a microsized mean diameter (32.6 ± 12.8 µm) to be well-localized in the hydrogel. The hybridization of MLCs and HSA enhanced the structural integrity of the HA hydrogel, as demonstrated by the measurements of storage modulus (G′), loss modulus (G″), and viscosity. In the pharmacokinetic study, subcutaneous administration of MLC/HSA hydrogel in rats prolonged the release of DNP for up to seven days and reduced the initial plasma concentration, where the Cmax value was 0.3-fold lower than that of the control hydrogel without a significant change in the AUClast value. Histological analyses of the hydrogels supported their biocompatibility for subcutaneous injection. These results suggest that a new hybrid MLC/HSA hydrogel could be promising as a subcutaneously injectable controlled drug delivery system for the treatment of Alzheimer’s disease.
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Moura NS, Bajgiran KR, Roman CL, Daemen L, Cheng Y, Lawrence J, Melvin AT, Dooley KM, Dorman JA. Catalytic Enhancement of Inductively Heated Fe 3 O 4 Nanoparticles by Removal of Surface Ligands. CHEMSUSCHEM 2021; 14:1122-1130. [PMID: 33338322 DOI: 10.1002/cssc.202002775] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Indexed: 06/12/2023]
Abstract
Heat management in catalysis is limited by each material's heat transfer efficiencies, resulting in energy losses despite current thermal engineering strategies. In contrast, induction heating of magnetic nanoparticles (NPs) generates heat at the surface of the catalyst where the reaction occurs, reducing waste heat via dissipation. However, the synthesis of magnetic NPs with optimal heat generation requires interfacial ligands, such as oleic acid, which act as heat sinks. Surface treatments using tetramethylammonium hydroxide (TMAOH) or pyridine are used to remove these ligands before applications in hydrophilic media. In this study, Fe3 O4 NPs are surface treated to study the effect of induction heating on the catalytic oxidation of 1-octanol. Whereas TMAOH was unsuccessful in removing oleic acid, pyridine treatment resulted in a roughly 2.5-fold increase in heat generation and product yield. Therefore, efficient surfactant removal has profound implications in induction heating catalysis by increasing the heat transfer and available surface sites.
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Affiliation(s)
- Natalia S Moura
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Khashayar R Bajgiran
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Cameron L Roman
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Luke Daemen
- Spallation Neutron Source, Oak Ridge National Lab, PO. Box 2008, Oak Ridge, TN 37831, USA
| | - Yongqiang Cheng
- Spallation Neutron Source, Oak Ridge National Lab, PO. Box 2008, Oak Ridge, TN 37831, USA
| | - Jimmy Lawrence
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Adam T Melvin
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - Kerry M Dooley
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
| | - James A Dorman
- Department of Chemical Engineering, Louisiana State University, 3307 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA
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28
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Batalioto F, Barbero G, Campos AFC, Figueiredo Neto AM. Free ions in kerosene-based ferrofluid detected by impedance spectroscopy. Phys Chem Chem Phys 2021; 23:2819-2824. [PMID: 33471003 DOI: 10.1039/d0cp05865c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The influence of the free ions on the electric response of cells filled with kerosene-based ferrofluids in the low-frequency region is explored. The experimental investigations have been performed on cells limited by different types of electrodes, with the same kind of ferrofluid, by means of the impedance spectroscopy technique. The electrodes considered in our study are made of titanium, platinum, gold, brass and surgical steel. The analysis of the spectra of the real and imaginary parts of the electric impedance of the cell data has been done by means of a simplified version of the Poisson-Nernst-Planck model, in which only the carriers of a given sign are mobile. The agreement between the theoretical predictions and the experimental data is rather good on the whole frequency range. From the analysis of the data in the low-frequency range, dominated by the properties of the electrodes, we discovered that only gold electrodes behave in a manner different from the other electrodes. From the best fit of the experimental data the free-ions density is determined as well as their diffusion coefficient in kerosene. The estimated dielectric constant of the kerosene is in good agreement with the values reported in the literature. In the framework of our model, the surface conductivity of the electrodes has been also determined.
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Affiliation(s)
- F Batalioto
- Instituto de Física, Universidade de São Paulo, Rua do Matão, 1371, São Paulo, SP 05508-090, Brazil.
| | - G Barbero
- Dipartimento di Scienza Applicata del Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Torino, Italy and National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoye Shosse 31, 115409, Moscow, Russian Federation
| | - A F C Campos
- Laboratório de Nanociência Ambiental e Aplicada -LNAA, Faculdade UnB Planaltina, Universidade de Brasília, Brasília, DF 73300-000, Brazil
| | - A M Figueiredo Neto
- Instituto de Física, Universidade de São Paulo, Rua do Matão, 1371, São Paulo, SP 05508-090, Brazil.
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29
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Raval NP, Kumar M. Geogenic arsenic removal through core-shell based functionalized nanoparticles: Groundwater in-situ treatment perspective in the post-COVID anthropocene. JOURNAL OF HAZARDOUS MATERIALS 2021; 402:123466. [PMID: 32711382 PMCID: PMC7362809 DOI: 10.1016/j.jhazmat.2020.123466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/03/2020] [Accepted: 07/12/2020] [Indexed: 05/05/2023]
Abstract
Groundwater, one of the significant potable water resources of the geological epoch is certainly contaminated with class I human carcinogenic metalloid of pnictogen family which delimiting its usability for human consumption. Hence, this study concerns with the elimination of arsenate (As(V)) from groundwater using bilayer-oleic coated iron-oxide nanoparticles (bilayer-OA@FeO NPs). The functionalized (with high-affinity carboxyl groups) adsorbent was characterized using the state-of-the-art techniques in order to understand the structural arrangement. The major emphasis was to examine the effects of pH (5.0-13), contact times (0-120 min), initial concentrations (10-150 μg L-1), adsorbent dosages (0.1-3 g L-1), and co-existing anions in order to understand the optimal experimental conditions for the effective removal process. The adsorbent had better adsorption efficiency (∼ 32.8 μg g-1, after 2 h) for As(V) at neutral pH. Adsorption process mainly followed pseudo-second-order kinetics and Freundlich isotherm models (R2∼0.90) and was facilitated by coulombic, charge-dipole and surface complexation interactions. The regeneration (upto five cycles with 0.1 M NaOH) and competition studies (with binary and cocktail mixture of co-anions) supported the potential field application of the proposed adsorbent.
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Affiliation(s)
- Nirav P Raval
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382 355, India
| | - Manish Kumar
- Discipline of Earth Sciences, Indian Institute of Technology Gandhinagar, Gujarat, 382 355, India.
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30
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Sarif M, Hilgert J, Khan I, Harris RA, Plana-Ruiz S, Ashraf M, Pütz E, Schemberg J, Panthöfer M, Kolb U, Nawaz Tahir M, Tremel W. Selective Synthesis of Monodisperse CoO Nanooctahedra as Catalysts for Electrochemical Water Oxidation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:13804-13816. [PMID: 33171051 DOI: 10.1021/acs.langmuir.0c02131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Thermal decomposition is a promising route for the synthesis of metal oxide nanoparticles because size and morphology can be tuned by minute control of the reaction variables. We synthesized CoO nanooctahedra with diameters of ∼48 nm and a narrow size distribution. Full control over nanoparticle size and morphology could be obtained by controlling the reaction time, surfactant ratio, and reactant concentrations. We show that the particle size does not increase monotonically with time or surfactant concentration but passes through minima or maxima. We unravel the critical role of the surfactants in nucleation and growth and rationalize the observed experimental trends in accordance with simulation experiments. The as-synthesized CoO nanooctahedra exhibit superior electrocatalytic activity with long-term stability during oxygen evolution. The morphology of the CoO particles controls the electrocatalytic reaction through the distinct surface sites involved in the oxygen evolution reaction.
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Affiliation(s)
- Massih Sarif
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Jan Hilgert
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ibrahim Khan
- Center of Integrative Petroleum Research, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Richard A Harris
- Department of Physics, University of the Free State, Bloemfontein 9300, Republic of South Africa
| | - Sergi Plana-Ruiz
- Faculty of Physics, University of Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
- Institut für Angewandte Geowissenschaften, Technische Universität Darmstadt, Schnittspahnstrasse 9, 64287 Darmstadt, Germany
| | - Muhammad Ashraf
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P. O. Box 5048, Dhahran 31261, Saudi Arabia
| | - Eva Pütz
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Jörg Schemberg
- Institut für Bioprozess-und Analysenmesstechnik e.V., Rosenhof 1, 37308 Heilbad Heiligenstadt, Germany
| | - Martin Panthöfer
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Ute Kolb
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
| | - Muhammad Nawaz Tahir
- Department of Chemistry, King Fahd University of Petroleum and Minerals, P. O. Box 5048, Dhahran 31261, Saudi Arabia
| | - Wolfgang Tremel
- Department Chemie, Johannes Gutenberg-Universität Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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31
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Ramya S, Nataraj D, Krishnan S, Premkumar S, Thrupthika T, Sangeetha A, Senthilkumar K, Thangadurai TD. Aggregation induced emission behavior in oleylamine acetone system and its application to get improved photocurrent from In 2S 3 quantum dots. Sci Rep 2020; 10:19712. [PMID: 33184365 PMCID: PMC7661720 DOI: 10.1038/s41598-020-76703-0] [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: 05/26/2020] [Accepted: 09/22/2020] [Indexed: 11/09/2022] Open
Abstract
Blue emission giving nanoscale molecular clusters of Oleylamine-Acetone system was formed by an aging assisted hydrogen bond formation between the interacting molecular systems, at room temperature. The as-formed nanoscale molecular clusters were found to be self-assembled into flower-like aggregates and shifted the emission wavelength to red colour depicting an exciton delocalization in the aggregate system. Interestingly aging process has also produced imine type binding between Oleylamine and Acetone due to the condensation reaction. The experimental conditions and formation mechanism of hydrogen bond assisted Oleylamine-Acetone molecular aggregates and imine bond assisted Oleylamine-Acetone is elaborated in this paper in a systematic experimental approach with suitable theory. Finally we have introduced this Acetone assisted aging process in In2S3 QD system prepared with Oleylamine as functional molecules. It was found that the aging process has detached Oleylamine from QD surface and as a consequence In2S3 QD embedded Oleylamine-Acetone aggregates was obtained. When this In2S3 QD embedded molecular cluster system was used as an active layer in a photo conductor device then a maximum photo current value of the order of milli Ampere was obtained. The surfactant molecules normally inhibit the charge transport between QD systems and as a result it is always problematic to have the functional molecules in the QD based transport devices. Our approach has a solution to this problem and the present paper discusses the outcome of the results in detail.
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Affiliation(s)
- Subramaniam Ramya
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Devaraj Nataraj
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
- UGC-CPEPA Centre for Advanced Studies in Physics for the Development of Solar Energy Materials and Devices, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India.
| | - Sangameswaran Krishnan
- Molecular Quantum Mechanics Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Sellan Premkumar
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
- School of Chemistry and Chemical Engineering, Tiangong University, Tianjin, 300387, China
- School of Material Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Thankappan Thrupthika
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Arumugam Sangeetha
- Quantum Materials and Devices Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - Kittusamy Senthilkumar
- Molecular Quantum Mechanics Laboratory, Department of Physics, Bharathiar University, Coimbatore, Tamil Nadu, 641046, India
| | - T Daniel Thangadurai
- Department of Nanoscience and Technology, Sri Ramakrishna Engineering College, Coimbatore, Tamil Nadu, 641022, India
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Chen T, Xu Y, Xie Z, Jiang W, Wang L, Jiang W. Ionic liquid assisted preparation and modulation of the photoluminescence kinetics for highly efficient CsPbX 3 nanocrystals with improved stability. NANOSCALE 2020; 12:9569-9580. [PMID: 32315006 DOI: 10.1039/d0nr00579g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
CsPbX3 (X = Cl, Br, I) nanocrystals (NCs) are competitive fluorescent materials for lighting and displays owing to their excellent photophysical properties. However, the stability and optoelectronic performance of the perovskite NCs are severely limited by the highly dynamic binding feature of the present ligand strategy. Herein, a facile approach was employed to synthesize CsPbBr3 NCs with the assistance of the ionic liquid (IL) 1-butyl-3-methylimidazolium bromide ([Bmim]Br). By strictly controlling the addition dose of [Bmim]Br (nIL/nPb = 0.125) into the reaction precursor, it is possible to obtain the desired cube-shaped and monodisperse CsPbBr3 NCs with simultaneous enhancement of the storage and irradiation stability as well as photoluminescence quantum yields (PLQYs, ∼91%). Stability tests show that the emission intensity of the parent CsPbBr3 NCs drops to 50% of its initial emission intensity after storage under an open atmosphere for 91 days, while the sample prepared with the assistance of [Bmim]Br can maintain 82% of the PL intensity. Meanwhile, the modified CsPbBr3 NCs also present superior photo-stability, and still maintain 81% of the original PL intensity after continuous illumination under an ultraviolet lamp for 24 h, but the intensity of the parent CsPbBr3 NCs reduces to 35% of the original intensity. Through the morphology, composition, and luminescence kinetics evolution of CsPbBr3 NCs, these benefits were attributed to the modulation by [Bmim]Br, which could effectively provide Br ions for the formation and growth of NCs, resulting in the reduction of surface traps. Moreover, [Bmim]Br exhibited strong interactions with NCs, and the deprotonation of oleic acid (OA) was inhibited, resulting in the effective passivation of surface defects. Finally, CsPbX3 NCs with different compositions were obtained via a facile anion exchange reaction, leading to the tunable emission in the range of 462-665 nm and a wide colour gamut (129.65% NTSC standard). This work opens a new avenue for modulating the surface properties of CsPbX3 NCs, which will create opportunities for their application in the photoelectric field.
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Affiliation(s)
- Ting Chen
- School of Material Science and Engineering, Jingdezhen Ceramic Institute, Jingdezhen 333001, China.
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Influence of Experimental Parameters of a Continuous Flow Process on the Properties of Very Small Iron Oxide Nanoparticles (VSION) Designed for T 1-Weighted Magnetic Resonance Imaging (MRI). NANOMATERIALS 2020; 10:nano10040757. [PMID: 32326593 PMCID: PMC7221927 DOI: 10.3390/nano10040757] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 03/27/2020] [Accepted: 03/30/2020] [Indexed: 01/02/2023]
Abstract
This study reports the development of a continuous flow process enabling the synthesis of very small iron oxide nanoparticles (VSION) intended for T1-weighted magnetic resonance imaging (MRI). The influence of parameters, such as the concentration/nature of surfactants, temperature, pressure and the residence time on the thermal decomposition of iron(III) acetylacetonate in organic media was evaluated. As observed by transmission electron microscopy (TEM), the diameter of the resulting nanoparticle remains constant when modifying the residence time. However, significant differences were observed in the magnetic and relaxometric studies. This continuous flow experimental setup allowed the production of VSION with high flow rates (up to 2 mL·min−1), demonstrating the efficacy of such process compared to conventional batch procedure for the scale-up production of VSION.
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Gopalan Sibi M, Verma D, Kim J. Magnetic core–shell nanocatalysts: promising versatile catalysts for organic and photocatalytic reactions. CATALYSIS REVIEWS 2020. [DOI: 10.1080/01614940.2019.1659555] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Malayil Gopalan Sibi
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Deepak Verma
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
| | - Jaehoon Kim
- SKKU Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Mechanical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
- School of Chemical Engineering, Sungkyunkwan University, Gyeong Gi-Do, Republic of Korea
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Nickel R, Kazemian MR, Wroczynskyj Y, Liu S, van Lierop J. Exploiting shape-selected iron oxide nanoparticles for the destruction of robust bacterial biofilms - active transport of biocides via surface charge and magnetic field control. NANOSCALE 2020; 12:4328-4333. [PMID: 32043517 DOI: 10.1039/c9nr09484a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Biofilms that form on reusable medical devices are a cause of hospital acquired infections; however, sanitization of biofilms is a challenge due to their dense extracellular matrix. This work presents an innovative strategy using biocide-loaded iron oxide nanoparticles transported within the matrix via a magnetic field to eradicate biofilms. Results show that the active delivery of the biocide to underlying cells effectively penetrates the extracellular matrix and inactivates Methicillin resistant Staphylococcus aureus (MRSA) biofilms (responsible for several difficult-to-treat infections in humans). To optimize this treatment, the loading of spherical, cubic and tetrapod-shaped nanoparticles with a model biocide, CTAB (cetyltrimethylammonium bromide) was studied. Biocide loading was determined to be dependent on the shapes' surface charge density instead of the surface area, meaning that biocide attachment is greater for nanoparticles with sharp edges (e.g. cubes and tetrapods). These results can be used to optimize treatment efficacy, and help further understanding of biofilm and nanoparticle surface zeta potentials, and the nanoparticle-biofilm interactions.
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Affiliation(s)
- Rachel Nickel
- Department of Physics & Astronomy, University of Manitoba, Winnipeg, MB R3T 2N2, Canada.
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Liu H, Di Valentin C. Shaping Magnetite Nanoparticles from First Principles. PHYSICAL REVIEW LETTERS 2019; 123:186101. [PMID: 31763909 DOI: 10.1103/physrevlett.123.186101] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 09/12/2019] [Indexed: 06/10/2023]
Abstract
Iron oxide magnetic nanoparticles (NPs) are stimuli-responsive materials at the forefront of nanomedicine. Their realistic finite temperature simulations are a formidable challenge for first-principles methods. Here, we use density functional tight binding to open up the required time and length scales and obtain global minimum structures of Fe_{3}O_{4} NPs of realistic size (1400 atoms, 2.5 nm) and of different shapes, which we then refine with hybrid density functional theory methods to accomplish proper electronic and magnetic properties, which have never been accurately described in simulations. On this basis, we develop a general empirical formula and prove its predictive power for the evaluation of the total magnetic moment of Fe_{3}O_{4} NPs. By converting the total magnetic moment into the macroscopic saturation magnetization, we rationalize the experimentally observed dependence with shape. We also reveal interesting reconstruction mechanisms and unexpected patterns of charge ordering.
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Affiliation(s)
- Hongsheng Liu
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Roberto Cozzi 55, I-20125 Milano, Italy
| | - Cristiana Di Valentin
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, via Roberto Cozzi 55, I-20125 Milano, Italy
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Harris R. Chemotherapy drug temozolomide adsorbed onto iron-oxide (Fe3O4) nanoparticles as nanocarrier: A simulation study. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111084] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Chang H, Kim BH, Jeong HY, Moon JH, Park M, Shin K, Chae SI, Lee J, Kang T, Choi BK, Yang J, Bootharaju MS, Song H, An SH, Park KM, Oh JY, Lee H, Kim MS, Park J, Hyeon T. Molecular-Level Understanding of Continuous Growth from Iron-Oxo Clusters to Iron Oxide Nanoparticles. J Am Chem Soc 2019; 141:7037-7045. [DOI: 10.1021/jacs.9b01670] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Hogeun Chang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Byung Hyo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hu Young Jeong
- UNIST Central Research Facilities (UCRF), Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea
| | - Jeong Hee Moon
- Disease Target Structure Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 34141, Republic of Korea
| | - Minwoo Park
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Kwangsoo Shin
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Sue In Chae
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jisoo Lee
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Taegyu Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Back Kyu Choi
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Jiwoong Yang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Megalamane S. Bootharaju
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyoin Song
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Seong Hee An
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Man Park
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | | | - Hoonkyung Lee
- Department of Physics, Konkuk University, Seoul 05029, Republic of Korea
| | - Myung Soo Kim
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- Department of Chemistry, Seoul National University, Seoul 08826, Republic of Korea
| | - Jungwon Park
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
| | - Taeghwan Hyeon
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Seoul 08826, Republic of Korea
- School of Chemical and Biological Engineering, and Institute of Chemical Process, Seoul National University, Seoul 08826, Republic of Korea
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Liu H, Seifert G, Di Valentin C. An efficient way to model complex magnetite: Assessment of SCC-DFTB against DFT. J Chem Phys 2019; 150:094703. [PMID: 30849917 DOI: 10.1063/1.5085190] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Magnetite has attracted increasing attention in recent years due to its promising and diverse applications in biomedicine. Theoretical modelling can play an important role in understanding magnetite-based nanomaterials at the atomic scale for a deeper insight into the experimental observations. However, calculations based on density functional theory (DFT) are too costly for realistically large models of magnetite nanoparticles. Classical force field methods are very fast but lack of precision and of the description of electronic effects. Therefore, a cheap and efficient quantum mechanical simulation method with comparable accuracy to DFT is highly desired. Here, a less computationally demanding DFT-based method, i.e., self-consistent charge density functional tight-binding (SCC-DFTB), is adopted to investigate magnetite bulk and low-index (001) surfaces with newly proposed parameters for Fe-O interactions. We report that SCC-DFTB with on-site Coulomb correction provides results in quantitatively comparable agreement with those obtained by DFT + U and hybrid functional methods. Therefore, SCC-DFTB is valued as an efficient and reliable method for the description magnetite. This assessment will promote SCC-DFTB computational studies on magnetite-based nanostructures that attract increasing attention for medical applications.
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Affiliation(s)
- Hongsheng Liu
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, Via R. Cozzi 55, I-20125 Milano, Italy
| | - Gotthard Seifert
- Theoretische Chemie, Technische Universität Dresden, 01062 Dresden, Germany
| | - Cristiana Di Valentin
- Dipartimento di Scienza dei Materiali, Università di Milano-Bicocca, Via R. Cozzi 55, I-20125 Milano, Italy
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Park JH, Lee AY, Yu JC, Nam YS, Choi Y, Park J, Song MH. Surface Ligand Engineering for Efficient Perovskite Nanocrystal-Based Light-Emitting Diodes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:8428-8435. [PMID: 30714373 DOI: 10.1021/acsami.8b20808] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Lead halide perovskites (LHPs) are emerging as promising materials for light-emitting device applications because of the tunability of the band gap, narrow emission, solution processability, and flexibility. Typically, LHP nanocrystals (NCs) with surface ligands show high photoluminescence quantum yields because of charge-carrier confinement with higher exciton binding energy ( Eb). However, the conventionally used oleylamine (OAm) ligands result in the low electrical conductivity and stability of perovskite NCs (PNCs) because of a long carbon chain without conjugation bonds and weak interaction with the surface of NCs. Here, we report the effect of bulkiness and chain length of ligand materials on the properties and stability of CsPbBr3 PNCs by replacing OAm with other suitable ligands. The effect of the bulkiness of quaternary ammonium bromide (QAB) ligands was systemically studied. The less bulky QAB ligands surrounded the surface of NCs effectively, and brought better surface passivation and less aggregation compared to bulky QAB ligands, and finally the optical property and stability of CsPbBr3 PNCs were enhanced. Furthermore, the electrical property of CsPbBr3 PNCs was optimized by tuning the long-chain length of QAB ligands for balanced charge-carrier transport. Finally, we achieved highly efficient green emissive CsPbBr3 PNC light-emitting diodes (LEDs) by using PNCs with optimized didecyldimethyl ammonium bromide ligands with a current efficiency of 31.7 cd A-1 and external quantum efficiency of 9.7%, which were enhanced 16-fold compared to those of CsPbBr3 LEDs using PNCs with conventional OAm ligands.
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Affiliation(s)
- Jong Hyun Park
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Ah-Young Lee
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Jae Choul Yu
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Yun Seok Nam
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Yonghoon Choi
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Jongnam Park
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
| | - Myoung Hoon Song
- School of Materials Science and Engineering and Low Dimensional Carbon Center and Perovtronics Research Center , Ulsan National Institute of Science and Technology (UNIST) , UNIST-gil 50 , Ulsan 44919 , Republic of Korea
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Reyes-Rodríguez JL, Velázquez-Osorio A, Bahena-Uribe D, Soto-Guzmán AB, Leyva MA, Rodríguez-Castellanos A, Citalán-Cigarroa S, Solorza-Feria O. Tailoring the morphology of Ni–Pt nanocatalysts through the variation of oleylamine and oleic acid: a study on oxygen reduction from synthesis to fuel cell application. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00419j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Systematic study on the variation of morphology, size and composition of Ni–Pt nanoparticles with higher catalytic activity towards oxygen reduction.
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Affiliation(s)
- J. L. Reyes-Rodríguez
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
| | - A. Velázquez-Osorio
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
| | - D. Bahena-Uribe
- Laboratorio Avanzado de Nanoscopía Electrónica (LANE)
- CINVESTAV
- Mexico
| | | | - M. A. Leyva
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
| | - A. Rodríguez-Castellanos
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
| | - S. Citalán-Cigarroa
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
| | - O. Solorza-Feria
- Departamento de Química
- Centro de Investigación y de Estudios Avanzados del I.P.N. (CINVESTAV)
- Ciudad de México
- Mexico
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42
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Benedé JL, Chisvert A, Moyano C, Giokas DL, Salvador A. Expanding the application of stir bar sorptive-dispersive microextraction approach to solid matrices: Determination of ultraviolet filters in coastal sand samples. J Chromatogr A 2018; 1564:25-33. [DOI: 10.1016/j.chroma.2018.06.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 06/03/2018] [Accepted: 06/03/2018] [Indexed: 11/25/2022]
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Sharifi Dehsari H, Harris RA, Ribeiro AH, Tremel W, Asadi K. Optimizing the Binding Energy of the Surfactant to Iron Oxide Yields Truly Monodisperse Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:6582-6590. [PMID: 29726684 DOI: 10.1021/acs.langmuir.8b01337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Despite the great progress in the synthesis of iron oxide nanoparticles (NPs) using a thermal decomposition method, the production of NPs with low polydispersity index is still challenging. In a thermal decomposition synthesis, oleic acid (OAC) and oleylamine (OAM) are used as surfactants. The surfactants bind to the growth species, thereby controlling the reaction kinetics and hence playing a critical role in the final size and size distribution of the NPs. Finding an optimum molar ratio between the surfactants oleic OAC/OAM is therefore crucial. A systematic experimental and theoretical study, however, on the role of the surfactant ratio is still missing. Here, we present a detailed experimental study on the role of the surfactant ratio in size distribution. We found an optimum OAC/OAM ratio of 3 at which the synthesis yielded truly monodisperse (polydispersity less than 7%) iron oxide NPs without employing any post synthesis size-selective procedures. We performed molecular dynamics simulations and showed that the binding energy of oleate to the NP is maximized at an OAC/OAM ratio of 3. The optimum OAC/OAM ratio of 3 is allowed for the control of the NP size with nanometer precision by simply changing the reaction heating rate. The optimum OAC/OAM ratio has no influence on the crystallinity and the superparamagnetic behavior of the Fe3O4 NPs and therefore can be adopted for the scaled-up production of size-controlled monodisperse Fe3O4 NPs.
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Affiliation(s)
| | - Richard Anthony Harris
- Department of Physics , University of the Free State , Bloemfontein 9300 , Republic of South Africa
| | | | - Wolfgang Tremel
- Department of Chemistry , Johannes Gutenberg University of Mainz , Mainz 55122 , Germany
| | - Kamal Asadi
- Max Planck Institute for Polymer Research , Ackermannweg 10 , Mainz 55128 , Germany
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Novel cationic supersaturable nanomicellar systems of raloxifene hydrochloride with enhanced biopharmaceutical attributes. Drug Deliv Transl Res 2018; 8:670-692. [DOI: 10.1007/s13346-018-0514-8] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Mohapatra J, Zeng F, Elkins K, Xing M, Ghimire M, Yoon S, Mishra SR, Liu JP. Size-dependent magnetic and inductive heating properties of Fe3O4 nanoparticles: scaling laws across the superparamagnetic size. Phys Chem Chem Phys 2018; 20:12879-12887. [DOI: 10.1039/c7cp08631h] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
An efficient heat activating mediator with an enhanced specific absorption rate (SAR) value is attained via control of the iron oxide (Fe3O4) nanoparticle size from 3 to 32 nm.
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Affiliation(s)
| | - Fanhao Zeng
- Department of Physics, University of Texas at Arlington
- Arlington
- USA
| | - Kevin Elkins
- Department of Physics, University of Texas at Arlington
- Arlington
- USA
| | - Meiying Xing
- Department of Physics, University of Texas at Arlington
- Arlington
- USA
| | - Madhav Ghimire
- Department of Physics and Materials Science, The University of Memphis
- Memphis
- USA
| | - Sunghyun Yoon
- Department of Physics, Gunsan National University
- Gunsan
- South Korea
| | - Sanjay R. Mishra
- Department of Physics and Materials Science, The University of Memphis
- Memphis
- USA
| | - J. Ping Liu
- Department of Physics, University of Texas at Arlington
- Arlington
- USA
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46
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Dehvari K, Lin PT, Chang JY. Fluorescence-guided magnetic nanocarriers for enhanced tumor targeting photodynamic therapy. J Mater Chem B 2018; 6:4676-4686. [DOI: 10.1039/c8tb00734a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Fe3O4-HA-Ce6 nanotheranostic agents demonstrated specific targeting ability toward cancer cells with subsequent improvement in dual modal MR/NIR imaging and photodynamic therapeutic effects.
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Affiliation(s)
- Khalilalrahman Dehvari
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taiwan
- Republic of China
| | - Po-Ting Lin
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taiwan
- Republic of China
| | - Jia-Yaw Chang
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taiwan
- Republic of China
- Taiwan Building Technology Center
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47
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Wang L, Ren L, Mitchell D, Casillas-Garcia G, Ren W, Ma C, Xu XX, Wen S, Wang F, Zhou J, Xu X, Hao W, Dou SX, Du Y. Enhanced energy transfer in heterogeneous nanocrystals for near infrared upconversion photocurrent generation. NANOSCALE 2017; 9:18661-18667. [PMID: 29164217 DOI: 10.1039/c7nr07010a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The key to produce inorganic heterogeneous nanostructures, and to integrate multiple functionalities, is to enhance or at least retain the functionalities of different components of materials. However, this ideal scenario is often deteriorated at the interface of the heterogeneous nanostructures due to lattice mismatches, resulting in downgraded performance in most hybrid nanomaterials. Here, we report that there is a narrow window in controlling temperature in a Lewis acid-base reaction process to facilitate epitaxial alignment during the synthesis of hybrid nanomaterials. We demonstrate a perfectly fused NaYF4:Yb,Tm@ZnO heterogeneous nanostructure, in which the semiconductor ZnO shell can be epitaxially grown onto lanthanide-doped upconversion nanoparticles. By achieving a matched crystal lattice, the interface defects and crystalline grain boundaries are minimized to enable more efficient energy transfer from the upconversion nanoparticles to the semiconductor, resulting in both enhanced upconversion luminescence intensity and superior photoelectrochemical properties. This strategy provides an outstanding approach to endow lanthanide-doped upconversion nanoparticles with versatile properties.
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Affiliation(s)
- L Wang
- Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, Wollongong, NSW 2500, Australia.
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Nedyalkova M, Donkova B, Romanova J, Tzvetkov G, Madurga S, Simeonov V. Iron oxide nanoparticles - In vivo/in vitro biomedical applications and in silico studies. Adv Colloid Interface Sci 2017; 249:192-212. [PMID: 28499604 DOI: 10.1016/j.cis.2017.05.003] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/28/2017] [Accepted: 05/02/2017] [Indexed: 12/22/2022]
Abstract
The review presents a broad overview of the biomedical applications of surface functionalized iron oxide nanoparticles (IONPs) as magnetic resonance imaging (MRI) agents for sensitive and precise diagnosis tool and synergistic combination with other imaging modalities. Then, the recent progress in therapeutic applications, such as hyperthermia is discussed and the available toxicity data of magnetic nanoparticles concerning in vitro and in vivo biomedical applications are addressed. This review also presents the available computer models using molecular dynamics (MD), Monte Carlo (MC) and density functional theory (DFT), as a basis for a complete understanding of the behaviour and morphology of functionalized IONPs, for improving NPs surface design and expanding the potential applications in nanomedicine.
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Affiliation(s)
- Miroslava Nedyalkova
- Faculty of Chemistry and Pharmacy, University of Sofia "St. Kl. Okhridski". J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria.
| | - Borjana Donkova
- Faculty of Chemistry and Pharmacy, University of Sofia "St. Kl. Okhridski". J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria
| | - Julia Romanova
- Faculty of Chemistry and Pharmacy, University of Sofia "St. Kl. Okhridski". J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria
| | - George Tzvetkov
- Faculty of Chemistry and Pharmacy, University of Sofia "St. Kl. Okhridski". J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria
| | - Sergio Madurga
- Materials Science and Physical Chemistry Department & Research Institute of Theoretical and Computational Chemistry (IQTCUB) of Barcelona University (UB), C/Martí i Franquès, 1, 08028 Barcelona, Catalonia, Spain
| | - Vasil Simeonov
- Faculty of Chemistry and Pharmacy, University of Sofia "St. Kl. Okhridski". J. Bourchier Blvd. 1, 1164 Sofia, Bulgaria
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Pham MN, Van Vo T, Tran VT, Tran PHL, Tran TTD. Microemulsion-Based Mucoadhesive Buccal Wafers: Wafer Formation, In Vitro Release, and Ex Vivo Evaluation. AAPS PharmSciTech 2017; 18:2727-2736. [PMID: 28299621 DOI: 10.1208/s12249-017-0754-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/03/2017] [Indexed: 01/20/2023] Open
Abstract
Microemulsion has the potentials to enhance dissolution as well as facilitate absorption and permeation of poorly water-soluble drugs through biological membranes. However, its application to govern a controlled release buccal delivery for local treatment has not been discovered. The aim of this study is to develop microemulsion-based mucoadhesive wafers for buccal delivery based on an incorporation of the microemulsion with mucoadhesive agents and mannitol. Ratio of oil to surfactant to water in the microemulsion significantly impacted quality of the wafers. Furthermore, the combination of carbopol and mannitol played a key role in forming the desired buccal wafers. The addition of an extra 50% of water to the formulation was suitable for wafer formation by freeze-drying, which affected the appearance and distribution of carbopol in the wafers. The amount of carbopol was critical for the enhancement of mucoadhesive properties and the sustained drug release patterns. Release study presented a significant improvement of the drug release profile following sustained release for 6 h. Ex vivo mucoadhesive studies provided decisive evidence to the increased retention time of wafers along with the increased carbopol content. The success of this study indicates an encouraging strategy to formulate a controlled drug delivery system by incorporating microemulsions into mucoadhesive wafers.
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Lastovina TA, Budnyk AP, Soldatov MA, Rusalev YV, Guda AA, Bogdan AS, Soldatov AV. Microwave-assisted synthesis of magnetic iron oxide nanoparticles in oleylamine–oleic acid solutions. MENDELEEV COMMUNICATIONS 2017. [DOI: 10.1016/j.mencom.2017.09.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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