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Joo JU, Park CH, Yang J, Ko Y, Jee SS, Ahn H, Kim DP. Flash precipitation of random copolymers in a micro-mixer for controlling the size and surface charge of nanoparticles. RSC Adv 2024; 14:19147-19153. [PMID: 38882478 PMCID: PMC11177181 DOI: 10.1039/d4ra01433b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Accepted: 05/19/2024] [Indexed: 06/18/2024] Open
Abstract
Precisely controlling the size and surface chemistry of polymeric nanoparticles (P-NPs) is critical for their versatile engineering and biomedical applications. In this work, various NPs of amphipathic random copolymers were comparatively produced by the flash nanoprecipitation (FNP) method using a tube-in-tube type of micro-mixer up to 330 mg min-1 in production scale in a kinetically controlled manner. The NPs obtained from poly(styrene-co-maleic acid), poly(styrene-co-allyl alcohol), and poly(methyl methacrylate-co-methacrylic acid) were concurrently controlled in the range 51-819 nm in size with narrow polydispersity index (<0.1) and -44 to -16 mV in zeta potential, by depending not only on the polymeric chemistry and the concentration but also the mixing behavior of good solvents (THF, alcohols) and anti-solvent (water) under three flow regimes (laminar, vortex and turbulence, turbulent jet). Moreover, the P(St-MA) derived NPs under turbulent jet flow conditions were post-treated in the initial solution mixture for up to 16 h, resulting in lowering of the zeta potential to -52 mV from the initial -27 mV and decreasing size to 46 nm from 50 nm by further migration of hydrophilic segments with -COOH groups on the outer surface, and the removal of THF trapped in the hydrophobic core.
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Affiliation(s)
- Jeong-Un Joo
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Chae-Hyeon Park
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Jianwen Yang
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
| | - Yoonseok Ko
- Samsung Advanced Institute of Technology (SAIT) Suwon 16678 Republic of Korea
| | - Sang Soo Jee
- Samsung Advanced Institute of Technology (SAIT) Suwon 16678 Republic of Korea
| | - Hyungju Ahn
- 9A U-SAXS Beamline (PLS-II), Pohang Accelerator Laboratory (PAL), POSTECH Republic of Korea
| | - Dong-Pyo Kim
- Center of Intelligent Microprocess of Pharmaceutical Synthesis, Department of Chemical Engineering, Pohang University of Science and Technology (POSTECH) Pohang 37673 Korea
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Huynh GT, Tunny SS, Frith JE, Meagher L, Corrie SR. Organosilica Nanosensors for Monitoring Spatiotemporal Changes in Oxygen Levels in Bacterial Cultures. ACS Sens 2024; 9:2383-2394. [PMID: 38687178 DOI: 10.1021/acssensors.3c02747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Oxygen plays a central role in aerobic metabolism, and while many approaches have been developed to measure oxygen concentration in biological environments over time, monitoring spatiotemporal changes in dissolved oxygen levels remains challenging. To address this, we developed a ratiometric core-shell organosilica nanosensor for continuous, real-time optical monitoring of oxygen levels in biological environments. The nanosensors demonstrate good steady state characteristics (KpSV = 0.40 L/mg, R2 = 0.95) and respond reversibly to changes in oxygen concentration in buffered solutions and report similar oxygen level changes in response to bacterial cell growth (Escherichia coli) in comparison to a commercial bulk optode-based sensing film. We further demonstrated that the oxygen nanosensors could be distributed within a growing culture of E. coli and used to record oxygen levels over time and in different locations within a static culture, opening the possibility of spatiotemporal monitoring in complex biological systems.
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Affiliation(s)
- Gabriel T Huynh
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
- Commonwealth Scientific and Industrial Research Organization (CSIRO) Manufacturing, Clayton, VIC 3168, Australia
| | - Salma S Tunny
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
| | - Jessica E Frith
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC 3800, Australia
| | - Laurence Meagher
- Department of Materials Science and Engineering, Monash University, Clayton, VIC 3800, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC 3800, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC 3800, Australia
| | - Simon R Corrie
- Department of Chemical and Biological Engineering, Monash University, Clayton, VIC 3800, Australia
- ARC Training Centre for Cell and Tissue Engineering Technologies, Monash University, Clayton, VIC 3800, Australia
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3
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Xing H, Wigham C, Lee SR, Pereira AJ, de Campos LJ, Picco AS, Huck-Iriart C, Escudero C, Perez-Chirinos L, Gajaweera S, Comer J, Sasselli IR, Stupp SI, Zha RH, Conda-Sheridan M. Enhanced Hydrogen Bonding by Urea Functionalization Tunes the Stability and Biological Properties of Peptide Amphiphiles. Biomacromolecules 2024; 25:2823-2837. [PMID: 38602228 DOI: 10.1021/acs.biomac.3c01463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2024]
Abstract
Self-assembled nanostructures such as those formed by peptide amphiphiles (PAs) are of great interest in biological and pharmacological applications. Herein, a simple and widely applicable chemical modification, a urea motif, was included in the PA's molecular structure to stabilize the nanostructures by virtue of intermolecular hydrogen bonds. Since the amino acid residue nearest to the lipid tail is the most relevant for stability, we decided to include the urea modification at that position. We prepared four groups of molecules (13 PAs in all), with varying levels of intermolecular cohesion, using amino acids with distinct β-sheet promoting potential and/or containing hydrophobic tails of distinct lengths. Each subset contained one urea-modified PA and nonmodified PAs, all with the same peptide sequence. The varied responses of these PAs to variations in pH, temperature, counterions, and biologically related proteins were examined using microscopic, X-ray, spectrometric techniques, and molecular simulations. We found that the urea group contributes to the stabilization of the morphology and internal arrangement of the assemblies against environmental stimuli for all peptide sequences. In addition, microbiological and biological studies were performed with the cationic PAs. These assays reveal that the addition of urea linkages affects the PA-cell membrane interaction, showing the potential to increase the selectivity toward bacteria. Our data indicate that the urea motif can be used to tune the stability of a wide range of PA nanostructures, allowing flexibility on the biomaterial's design and opening a myriad of options for clinical therapies.
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Affiliation(s)
- Huihua Xing
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Caleb Wigham
- Department of Chemical & Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Sieun Ruth Lee
- Department of Materials Science & Engineering, Chemistry, Biomedical Engineering, Medicine, and Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
| | - Aramis J Pereira
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Luana J de Campos
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Agustín S Picco
- Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas, INIFTA-CONICET-UNLP, La Plata 1900, Argentina
| | - Cristián Huck-Iriart
- ALBA Synchrotron Light Source, Experiments Division, 08290 Cerdanyola del Vallès, Spain
| | - Carlos Escudero
- ALBA Synchrotron Light Source, Experiments Division, 08290 Cerdanyola del Vallès, Spain
| | - Laura Perez-Chirinos
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia 20014, San Sebastián, Spain
| | - Sandun Gajaweera
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506, United States
| | - Jeffrey Comer
- Department of Anatomy and Physiology, Kansas State University, Manhattan, Kansas 66506, United States
| | - Ivan R Sasselli
- Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia 20014, San Sebastián, Spain
- Centro de Fisica de Materiales (CFM), CSIC-UPV/EHU, Donostia 20018, San Sebastián, Spain
| | - Samuel I Stupp
- Department of Materials Science & Engineering, Chemistry, Biomedical Engineering, Medicine, and Simpson Querrey Institute, Northwestern University, Evanston, Illinois 60208, United States
| | - R Helen Zha
- Department of Chemical & Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Martin Conda-Sheridan
- College of Pharmacy, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
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Liu G, Zhan W, Huo L, Chen W, Zhong H. Kinetic stability of Fe-based nanoparticles with rheological modification by xanthan gum: A critical stabilization concentration and the underlying mechanism. Int J Biol Macromol 2024; 266:131270. [PMID: 38556237 DOI: 10.1016/j.ijbiomac.2024.131270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 04/02/2024]
Abstract
Enhanced kinetic stability of Fe-NPs in groundwater is a focus in application of Fe-NPs for groundwater remediation. The effect of surfactants (Triton X-100 and SDBS) and polymers (XG, SA, CCS, PSS and PVP) on the kinetic stability of Fe-NPs were studied with sedimentation experiments. Polymers improved stability of nFe3O4 and XG had the best effect, while surfactants had minimal effect. There was a critical concentration (CSC) for XG to stabilize nFe3O4, which was 2.0 g/L. At such a concentration nFe3O4, nFe2O3, and nCuO did not settled in 10 h, while the settlement occurred below the concentration and increased with decreasing XG concentration. At CSC XG could stabilize 20 g/L of nFe3O4 for >30 days and 8.0 g/L of nZVI for 13 days. Rheology studies indicated that the enhanced stability was due to the entanglement of XG molecules in the concentration range of 0.5-2.8 g/L and the formation of a uniform entangled network at CSC concentration was responsible for non-sedimentation of Fe-NPs. At hyper-CSC concentrations under the regime of concentrated network (>2.8 g/L), the stability of nFe3O4 and nFe2O3 decreased due to depletion interaction. The rules for XG to stabilize particles and information about the critical concentration will improve XG application in groundwater remediation using Fe-NPs.
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Affiliation(s)
- Guansheng Liu
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China
| | - Weiyong Zhan
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China
| | - Lili Huo
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China
| | - Wei Chen
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China
| | - Hua Zhong
- State Key Laboratory of Water Resources Engineering and Management, Wuhan University, Wuhan 430072, China; Ningbo Institute of Digital Twin, Eastern Institute of Technology, Ningbo 315200, China.
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5
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Bahlool AZ, Cavanagh B, Sullivan AO, MacLoughlin R, Keane J, Sullivan MPO, Cryan SA. Microfluidics produced ATRA-loaded PLGA NPs reduced tuberculosis burden in alveolar epithelial cells and enabled high delivered dose under simulated human breathing pattern in 3D printed head models. Eur J Pharm Sci 2024; 196:106734. [PMID: 38417586 DOI: 10.1016/j.ejps.2024.106734] [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: 09/26/2023] [Revised: 02/15/2024] [Accepted: 02/24/2024] [Indexed: 03/01/2024]
Abstract
Tuberculosis, caused by Mycobacterium tuberculosis (Mtb), is second only to COVID-19 as the top infectious disease killer worldwide. Multi-drug resistant TB (MDR-TB) may arise because of poor patient adherence to medications due to lengthy treatment duration and side effects. Delivering novel host directed therapies (HDT), like all trans retinoic acid (ATRA) may help to improve drug regimens and reduce the incidence of MDR-TB. Local delivery of ATRA to the site of infection leads to higher bioavailability and reduced systemic side effects. ATRA is poorly soluble in water and has a short half-life in plasma. Therefore, it requires a formulation step before it can be administered in vivo. ATRA loaded PLGA nanoparticles suitable for nebulization were manufactured and optimized using a scalable nanomanufacturing microfluidics (MF) mixing approach (MF-ATRA-PLGA NPs). MF-ATRA-PLGA NPs demonstrated a dose dependent inhibition of Mtb growth in TB-infected A549 alveolar epithelial cell model while preserving cell viability. The MF-ATRA-PLGA NPs were nebulized with the Aerogen Solo vibrating mesh nebulizer, with aerosol droplet size characterized using laser diffraction and the estimated delivered dose was determined. The volume median diameter (VMD) of the MF-ATRA-PLGA NPs was 3.00 ± 0.18 μm. The inhaled dose delivered in adult and paediatric 3D printed head models under a simulated normal adult and paediatric breathing pattern was found to be 47.05 ± 3 % and 20.15 ± 3.46 % respectively. These aerosol characteristics of MF-ATRA-PLGA NPs supports its suitability for delivery to the lungs via inhalation. The data generated on the efficacy of an inhalable, scalable and regulatory friendly ATRA-PLGA NPs formulation provides a foundation on which further pre-clinical testing can be built. Overall, the results of this project are promising for future research into ATRA loaded NPs formulations as inhaled host directed therapies for TB.
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Affiliation(s)
- Ahmad Z Bahlool
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), 123 St Stephens Green, Dublin 2, D02 YN77, Dublin, Ireland; Tissue Engineering Research Group, Royal College of Surgeons in Ireland (RCSI), 123 St Stephens Green, Dublin, Ireland; Department of Clinical Medicine, Trinity Translational Medicine Institute, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin 8, Ireland
| | - Brenton Cavanagh
- Cellular and Molecular Imaging Core, Royal College of Surgeons in Ireland RCSI, Dublin 2, Ireland
| | - Andrew O' Sullivan
- Research and Development, Science and Emerging Technologies, Aerogen Ltd, Galway Business Park, Dangan, Galway, Ireland
| | - Ronan MacLoughlin
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), 123 St Stephens Green, Dublin 2, D02 YN77, Dublin, Ireland; Research and Development, Science and Emerging Technologies, Aerogen Ltd, Galway Business Park, Dangan, Galway, Ireland; School of Pharmacy and Pharmaceutical Sciences, Trinity College, D02 PN40 Dublin, Ireland
| | - Joseph Keane
- Department of Clinical Medicine, Trinity Translational Medicine Institute, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin 8, Ireland
| | - Mary P O' Sullivan
- Department of Clinical Medicine, Trinity Translational Medicine Institute, St. James's Hospital, Trinity College Dublin, The University of Dublin, Dublin 8, Ireland
| | - Sally-Ann Cryan
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland (RCSI), 123 St Stephens Green, Dublin 2, D02 YN77, Dublin, Ireland; Tissue Engineering Research Group, Royal College of Surgeons in Ireland (RCSI), 123 St Stephens Green, Dublin, Ireland; SFI Advanced Materials and Bioengineering Research (AMBER) Centre, RCSI and Trinity College Dublin, Dublin, Ireland; SFI Centre for Research in Medical Devices (CÚRAM), NUIG & RCSI, Dublin, Ireland.
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6
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Howaili F, Saadabadi A, Mäkilä E, Korotkova E, Eklund PC, Salo-Ahen OMH, Rosenholm JM. Investigating the Effectiveness of Different Porous Nanoparticles as Drug Carriers for Retaining the Photostability of Pinosylvin Derivative. Pharmaceutics 2024; 16:276. [PMID: 38399330 PMCID: PMC10892027 DOI: 10.3390/pharmaceutics16020276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
Pinosylvin monomethyl ether (PsMME) is a natural compound known for its valuable bioactive properties, including antioxidant and anti-inflammatory effects. However, PsMME's susceptibility to photodegradation upon exposure to ultraviolet (UV) radiation poses a significant limitation to its applications in the pharmaceutical field. This study, for the first time, introduces a strategy to enhance the photostability of PsMME by employing various nanoformulations. We utilized mesoporous silica nanoparticles (MSNs) coated with polydopamine via a poly(ethylene imine) layer (PDA-PEI-MSNs), thermally carbonized porous silicon nanoparticles (TCPSi), and pure mesoporous polydopamine nanoparticles (MPDA). All these nanocarriers exhibit unique characteristics, including the potential for shielding the drug from UV light, which makes them promising for enhancing the photostability of loaded drugs. Here, these three nanoparticles were synthesized and their morphological and physicochemical properties, including size and ζ-potential, were characterized. They were subsequently loaded with PsMME, and the release profiles and kinetics of all three nanoformulations were determined. To assess their photoprotection ability, we employed gas chromatography with a flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) to assess the recovery percentage of loaded PsMME before and after UV exposure for each nanoformulation. Our findings reveal that MPDA exhibits the highest protection ability, with a remarkable 90% protection against UV light on average. This positions MPDA as an ideal carrier for PsMME, and by extension, potentially for other photolabile drugs as well. As a final confirmation of its suitability as a drug nanocarrier, we conducted cytotoxicity evaluations of PsMME-loaded MPDA, demonstrating dose-dependent drug toxicity for this formulation.
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Affiliation(s)
- Fadak Howaili
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland; (F.H.); (A.S.); (O.M.H.S.-A.)
| | - Atefeh Saadabadi
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland; (F.H.); (A.S.); (O.M.H.S.-A.)
- Laboratory of Molecular Science and Engineering, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland;
| | - Ermei Mäkilä
- Laboratory of Industrial Physics, Department of Physics and Astronomy, University of Turku, 20014 Turku, Finland;
| | - Ekaterina Korotkova
- Laboratory of Natural Materials Technology, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland;
| | - Patrik C. Eklund
- Laboratory of Molecular Science and Engineering, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland;
| | - Outi M. H. Salo-Ahen
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland; (F.H.); (A.S.); (O.M.H.S.-A.)
- Structural Bioinformatics Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland
| | - Jessica M. Rosenholm
- Pharmaceutical Sciences Laboratory, Faculty of Science and Engineering, Åbo Akademi University, 20500 Turku, Finland; (F.H.); (A.S.); (O.M.H.S.-A.)
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Favero S, Stephens IEL, Titirci MM. Anion Exchange Ionomers: Design Considerations and Recent Advances - An Electrochemical Perspective. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308238. [PMID: 37891006 DOI: 10.1002/adma.202308238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/23/2023] [Indexed: 10/29/2023]
Abstract
Alkaline-based electrochemical devices, such as anion exchange membrane (AEM) fuel cells and electrolyzers, are receiving increasing attention. However, while the catalysts and membrane are methodically studied, the ionomer is largely overlooked. In fact, most of the studies in alkaline electrolytes are conducted using the commercial proton exchange ionomer Nafion. The ionomer provides ionic conductivity; it is also essential for gas transport and water management, as well as for controlling the mechanical stability and the morphology of the catalyst layer. Moreover, the ionomer has distinct requirements that differ from those of anion-exchange membranes, such as a high gas permeability, and that depend on the specific electrode, such as water management. As a result, it is necessary to tailor the ionomer structure to the specific application in isolation and as part of the catalyst layer. In this review, an overview of the current state of the art for anion exchange ionomers is provided, summarizing their specific requirements and limitations in the context of AEM electrolyzers and fuel cells.
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Affiliation(s)
- Silvia Favero
- Department of Chemical Engineering, Imperial College London, England, SW7 2BU, UK
| | - Ifan E L Stephens
- Department of Materials, Imperial College London, England, SW7 2BU, UK
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8
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Itzhar A, Yosef G, Eilon-Ashkenazy M, Shmidov Y, Gil H, Lacham-Hartman S, Elyagon S, Etzion S, Bitton R, Cohen S, Etzion Y, Papo N. Potent inhibition of MMP-9 by a novel sustained-release platform attenuates left ventricular remodeling following myocardial infarction. J Control Release 2023; 364:246-260. [PMID: 37879441 DOI: 10.1016/j.jconrel.2023.10.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 10/03/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Sustained drug-release systems prolong the retention of therapeutic drugs within target tissues to alleviate the need for repeated drug administration. Two major caveats of the current systems are that the release rate and the timing cannot be predicted or fine-tuned because they rely on uncontrolled environmental conditions and that the system must be redesigned for each drug and treatment regime because the drug is bound via interactions that are specific to its structure and composition. We present a controlled and universal sustained drug-release system, which comprises minute spherical particles in which a therapeutic protein is affinity-bound to alginate sulfate (AlgS) through one or more short heparin-binding peptide (HBP) sequence repeats. Employing post-myocardial infarction (MI) heart remodeling as a case study, we show that the release of C9-a matrix metalloproteinase-9 (MMP-9) inhibitor protein that we easily bound to AlgS by adding one, two, or three HBP repeats to its sequence-can be directly controlled by modifying the number of HBP repeats. In an in vivo study, we directly injected AlgS particles, which were bound to C9 through three HBP repeats, into the left ventricular myocardium of mice following MI. We found that the particles substantially reduced post-MI remodeling, attesting to the sustained, local release of the drug within the tissue. As the number of HBP repeats controls the rate of drug release from the AlgS particles, and since C9 can be easily replaced with almost any protein, our tunable sustained-release system can readily accommodate a wide range of protein-based treatments.
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Affiliation(s)
- Amit Itzhar
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Gal Yosef
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Maayan Eilon-Ashkenazy
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yulia Shmidov
- Department of Chemical Engineering and the Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Hadas Gil
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Shiran Lacham-Hartman
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sigal Elyagon
- Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Sharon Etzion
- Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Ronit Bitton
- Department of Chemical Engineering and the Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Smadar Cohen
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Yoram Etzion
- Regenerative Medicine and Stem Cell (RMSC) Research Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel; Department of Physiology and Cell Biology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
| | - Niv Papo
- Avram and Stella Goldstein-Goren Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel; National Institute of Biotechnology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.
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9
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Lachowicz D, Kmita A, Gajewska M, Trynkiewicz E, Przybylski M, Russek SE, Stupic KF, Woodrum DA, Gorny KR, Celinski ZJ, Hankiewicz JH. Aqueous Dispersion of Manganese-Zinc Ferrite Nanoparticles Protected by PEG as a T 2 MRI Temperature Contrast Agent. Int J Mol Sci 2023; 24:16458. [PMID: 38003646 PMCID: PMC10671015 DOI: 10.3390/ijms242216458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 11/03/2023] [Accepted: 11/15/2023] [Indexed: 11/26/2023] Open
Abstract
Mixed manganese-zinc ferrite nanoparticles coated with PEG were studied for their potential usefulness in MRI thermometry as temperature-sensitive contrast agents. Particles in the form of an 8.5 nm core coated with a 3.5 nm layer of PEG were fabricated using a newly developed, one-step method. The composition of Mn0.48Zn0.46Fe2.06O4 was found to have a strong thermal dependence of magnetization in the temperature range between 5 and 50 °C. Nanoparticles suspended in an agar gel mimicking animal tissue and showing non-significant impact on cell viability in the biological test were studied with NMR and MRI over the same temperature range. For the concentration of 0.017 mg/mL of Fe, the spin-spin relaxation time T2 increased from 3.1 to 8.3 ms, while longitudinal relaxation time T1 shows a moderate decrease from 149.0 to 125.1 ms. A temperature map of the phantom exposed to the radial temperature gradient obtained by heating it with an 808 nm laser was calculated from T2 weighted spin-echo differential MR images. Analysis of temperature maps yields thermal/spatial resolution of 3.2 °C at the distance of 2.9 mm. The experimental relaxation rate R2 data of water protons were compared with those obtained from calculations using a theoretical model incorporating the motion averaging regime.
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Affiliation(s)
- Dorota Lachowicz
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, 30-059 Krakow, Poland; (D.L.); (M.G.); (E.T.); (M.P.)
| | - Angelika Kmita
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, 30-059 Krakow, Poland; (D.L.); (M.G.); (E.T.); (M.P.)
| | - Marta Gajewska
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, 30-059 Krakow, Poland; (D.L.); (M.G.); (E.T.); (M.P.)
| | - Elżbieta Trynkiewicz
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, 30-059 Krakow, Poland; (D.L.); (M.G.); (E.T.); (M.P.)
| | - Marek Przybylski
- Academic Centre for Materials and Nanotechnology, AGH University of Krakow, 30-059 Krakow, Poland; (D.L.); (M.G.); (E.T.); (M.P.)
- Faculty of Physics and Applied Computer Science, AGH University of Krakow, 30-059 Krakow, Poland
| | - Stephen E. Russek
- National Institute of Standards and Technology, 325 Broadway St, Boulder, CO 80305, USA; (S.E.R.)
| | - Karl F. Stupic
- National Institute of Standards and Technology, 325 Broadway St, Boulder, CO 80305, USA; (S.E.R.)
| | - David A. Woodrum
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA; (D.A.W.); (K.R.G.)
| | - Krzysztof R. Gorny
- Department of Radiology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA; (D.A.W.); (K.R.G.)
| | - Zbigniew J. Celinski
- Center for the BioFrontiers Institute, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918, USA; (Z.J.C.); (J.H.H.)
| | - Janusz H. Hankiewicz
- Center for the BioFrontiers Institute, University of Colorado Colorado Springs, 1420 Austin Bluffs Parkway, Colorado Springs, CO 80918, USA; (Z.J.C.); (J.H.H.)
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10
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Katopodi A, Safari K, Kalospyros A, Politopoulos K, Alexandratou E, Detsi A. Preparation and characterization of solid lipid nanoparticles incorporating bioactive coumarin analogues as photosensitizing agents. Colloids Surf B Biointerfaces 2023; 229:113439. [PMID: 37422991 DOI: 10.1016/j.colsurfb.2023.113439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/29/2023] [Accepted: 07/03/2023] [Indexed: 07/11/2023]
Abstract
Daphnetin (7,8-dihydroxy-coumarin, DAPH) is a naturally occurring coumarin presenting a wide array of biological activities. In the present study, daphnetin and its novel synthetic analogue 7,8-dihydroxy-4-methyl-3-(4-hydroxyphenyl)-coumarin (DHC) were encapsulated in solid lipid nanoparticles (SLNs) with Encapsulation Efficiency values of 80% and 40%, respectively. Nanoparticles of an average hydrodynamic diameter of approximately 250 nm were formed, showing a good stability in aqueous dispersion (polydispersity index 0.3-0.4), as determined by Dynamic Light Scattering (DLS). The SLNs were also characterized using Fourier Transform-Infrared (FT-IR) spectroscopy and Thermogravimetric Analysis (TGA). TEM images of the blank-SLNs indicated a spherical morphology and a size of 20-50 nm. The release studies of the coumarin analogues indicated a non-Fickian diffusion mechanism, while the release profiles better fitted on the Higuchi kinetic model. Moreover, the coumarin analogues and their SLNs were examined for their antioxidant activity using DPPH and anti-lipid peroxidation assays, exhibiting stronger antioxidant activity when encapsulated than in their free form. The coumarin derivatives and their SLNs were examined for their photodynamic therapy (PDT) efficacy against the human squamous carcinoma A431 cell line, with DHC coumarin both in its free and encapsulated form exhibiting significant PDT activity, reducing the cell viability to 11% after irradiation with a fluence rate of 2.16 J/cm2. Finally, the intracellular localization studies indicated the enhanced cellular uptake of the coumarin analogues when loaded in the SLNs.
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Affiliation(s)
- Annita Katopodi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Campus, 15780 Athens, Greece; Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece
| | - Kyriaki Safari
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Campus, 15780 Athens, Greece
| | - Alexandros Kalospyros
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Campus, 15780 Athens, Greece; Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece
| | - Konstantinos Politopoulos
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece
| | - Eleni Alexandratou
- Laboratory of Biomedical Optics and Applied Biophysics, School of Electrical and Computer Engineering, National Technical University of Athens, Zografou Campus, 15780 Athens, Greece
| | - Anastasia Detsi
- Laboratory of Organic Chemistry, School of Chemical Engineering, National Technical University of Athens, Zografou, Campus, 15780 Athens, Greece.
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11
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Krupnik L, Joshi P, Kappler A, Flühmann B, Alston AB, Digigow R, Wick P, Neels A. Critical nanomaterial attributes of iron-carbohydrate nanoparticles: Leveraging orthogonal methods to resolve the 3-dimensional structure. Eur J Pharm Sci 2023; 188:106521. [PMID: 37423578 DOI: 10.1016/j.ejps.2023.106521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 06/08/2023] [Accepted: 07/06/2023] [Indexed: 07/11/2023]
Abstract
Intravenous iron-carbohydrate nanomedicines are widely used to treat iron deficiency and iron deficiency anemia across a wide breadth of patient populations. These colloidal solutions of nanoparticles are complex drugs which inherently makes physicochemical characterization more challenging than small molecule drugs. There have been advancements in physicochemical characterization techniques such as dynamic light scattering and zeta potential measurement, that have provided a better understanding of the physical structure of these drug products in vitro. However, establishment and validation of complementary and orthogonal approaches are necessary to better understand the 3-dimensional physical structure of the iron-carbohydrate complexes, particularly with regard to their physical state in the context of the nanoparticle interaction with biological components such as whole blood (i.e. the nano-bio interface).
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Affiliation(s)
- Leonard Krupnik
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
| | - Prachi Joshi
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany
| | - Andreas Kappler
- Geomicrobiology, Department of Geosciences, University of Tuebingen, Tuebingen 72076, Germany; Cluster of Excellence: EXC 2124: Controlling Microbes to Fight Infection, Tuebingen 72076, Germany
| | - Beat Flühmann
- CSL Vifor, Flughofstrasse 61, Glattbrug 8152, Switzerland
| | | | | | - Peter Wick
- Laboratory for Particles-Biology Interactions, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland
| | - Antonia Neels
- Center for X-ray Analytics, Materials meet Life, Swiss Federal Laboratories for Materials Science and Technology (Empa), St. Gallen, Switzerland; Department of Chemistry, University of Fribourg, Fribourg 1700, Switzerland
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12
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Chen H, Luo J, Yang J, Zeng C, Jiang X. Synthesis of Pore-Size-Tunable Porous Silica Particles and Their Effects on Dental Resin Composites. Biomolecules 2023; 13:1290. [PMID: 37759690 PMCID: PMC10526776 DOI: 10.3390/biom13091290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/05/2023] [Accepted: 08/16/2023] [Indexed: 09/29/2023] Open
Abstract
The filler/resin matrix interface interaction plays a vital role in the properties of dental resin composites (DRCs). Porous particles are promising fillers due to their potential in constructing micromechanical interlocking at filler/resin matrix interfaces, therefore improving the properties of the resulting DRCs, where the pore size is significantly important. However, how to control the pore size of porous particles via a simple synthesis method is still a challenge, and how their pore sizes affect the properties of resulting DRCs has not been studied. In this study, porous silica (DPS) with a dendritic structure and an adjustable pore size was synthesized by changing the amounts of catalyst in the initial microemulsion. These synthesized DPS particles were directly used as unimodal fillers and mixed with a resin matrix to formulate DRCs. The results showed that the DPS pore size affects the properties of DRCs, especially the mechanical property. Among various DPS particles with different pore sizes, DPS6 resulted in 19.5% and 31.4% improvement in flexural strength, and 24.4% and 30.7% enhancement in compression strength, respectively, compared to DPS1 and DPS9. These DPS particles could help to design novel dental restorative materials and have promising applications in biomedicine, catalysis, and adsorption.
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Affiliation(s)
- Hongyan Chen
- Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai 200011, China; (H.C.)
- Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
- Shanghai Research Institute of Stomatology, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Jiaxin Luo
- Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai 200011, China; (H.C.)
- Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
- Shanghai Research Institute of Stomatology, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Jiawei Yang
- Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai 200011, China; (H.C.)
- Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
- Shanghai Research Institute of Stomatology, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
| | - Chen Zeng
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
| | - Xinquan Jiang
- Shanghai Engineering Research Center of Advanced Dental Technology and Materials, Shanghai 200011, China; (H.C.)
- Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
- Shanghai Research Institute of Stomatology, Shanghai 200011, China
- National Clinical Research Center for Oral Diseases, Shanghai 200011, China
- Department of Prosthodontics, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai 200011, China
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13
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Alaa H, Abdelaziz M, Mustafa M, Mansour M, Magdy S, Mohsen S, El-Karamany Y, Farid A. Therapeutic effect of melatonin-loaded chitosan/lecithin nanoparticles on hyperglycemia and pancreatic beta cells regeneration in streptozotocin-induced diabetic rats. Sci Rep 2023; 13:10617. [PMID: 37391460 PMCID: PMC10313733 DOI: 10.1038/s41598-023-36929-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 06/12/2023] [Indexed: 07/02/2023] Open
Abstract
Nanotechnology is used to overcome fundamental flaws in today's marketed pharmaceuticals that obstruct therapy, like restricted solubility and quick release of drugs into the bloodstream. In both human and animal researches, melatonin was demonstrated to regulate glucose levels. Despite the fact that melatonin is quickly transported through the mucosa, its sensitivity to be oxidized creates a difficulty in achieving the required dose. Additionally, due to its variable absorption and poor oral bioavailability necessitates the development of alternative delivery methods. The study aimed to synthesize melatonin loaded chitosan/lecithin (Mel-C/L) nanoparticles to be assessed in the treatment of streptozotocin (STZ)-induced diabetes in rats. The antioxidant, anti-inflammatory, and cytotoxicity properties of nanoparticles were estimated to determine the safety of manufactured nanoparticles for in vivo studies. In addition, Mel-C/L nanoparticles were administered to rats for eight weeks after inducing hyperglycemia. The therapeutic effect of Mel-C/L nanoparticles was assessed in all experimental groups by detecting insulin and blood glucose levels; observing improvements in liver and kidney functions as well as histological and immunohistochemical evaluation of rats' pancreatic sections. The results proved that Mel-C/L nanoparticles showed remarkable anti-inflammatory, anti-coagulant, and anti-oxidant effects, in addition to its efficiency in reducing blood glucose levels of STZ-induced diabetic rats and great ability to promote the regeneration of pancreatic beta (β)-cells. Furthermore, Mel-C/L nanoparticles elevated the insulin level; and decreased the elevated levels of urea, creatinine and cholesterol. In conclusion, nanoparticles application decreased the administrated melatonin dose that in turn can diminish the side effects of free melatonin administration.
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Affiliation(s)
- Habiba Alaa
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mariam Abdelaziz
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Maryam Mustafa
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Mustafa Mansour
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Salma Magdy
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Salma Mohsen
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Yomna El-Karamany
- Biotechnology/Biomolecular Chemistry Program, Faculty of Science, Cairo University, Giza, Egypt
| | - Alyaa Farid
- Immunology Division, Biotechnology Department, Faculty of Science, Cairo University, Giza, Egypt.
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14
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Campeiro JD, Dam WA, Hayashi MAF, van den Born J. Crotamine/siRNA Nanocomplexes for Functional Downregulation of Syndecan-1 in Renal Proximal Tubular Epithelial Cells. Pharmaceutics 2023; 15:1576. [PMID: 37376025 DOI: 10.3390/pharmaceutics15061576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
Proteinuria drives progressive tubulointerstitial fibrosis in native and transplanted kidneys, mainly through the activation of proximal tubular epithelial cells (PTECs). During proteinuria, PTEC syndecan-1 functions as a docking platform for properdin-mediated alternative complement activation. Non-viral gene delivery vectors to target PTEC syndecan-1 could be useful to slow down alternative complement activation. In this work, we characterize a PTEC-specific non-viral delivery vector composed of the cell-penetrating peptide crotamine complexed with a syndecan-1 targeting siRNA. Cell biological characterization was performed in the human PTEC HK2 cell line, using confocal microscopy, qRT-PCR, and flow cytometry. PTEC targeting in vivo was carried out in healthy mice. Crotamine/siRNA nanocomplexes are positively charged, about 100 nm in size, resistant to nuclease degradation, and showed in vitro and in vivo specificity and internalization into PTECs. The efficient suppression of syndecan-1 expression in PTECs mediated by these nanocomplexes significantly reduced properdin binding (p < 0.001), as well as the subsequent complement activation by the alternative complement pathway (p < 0.001), as observed in either normal or activated tubular conditions. To conclude, crotamine/siRNA-mediated downregulation of PTEC syndecan-1 reduced the activation of the alternative complement pathway. Therefore, we suggest that the present strategy opens new venues for targeted proximal tubular gene therapy in renal diseases.
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Affiliation(s)
- Joana D'Arc Campeiro
- Department Nephrology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, De Brug, 4th Floor, AA53, 9713 GZ Groningen, The Netherlands
- Departamento de Farmacologia, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de Maio 100, Ed. INFAR, 3rd Floor, São Paulo 04044-020, Brazil
| | - Wendy A Dam
- Department Nephrology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, De Brug, 4th Floor, AA53, 9713 GZ Groningen, The Netherlands
| | - Mirian A F Hayashi
- Departamento de Farmacologia, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (UNIFESP), Rua 3 de Maio 100, Ed. INFAR, 3rd Floor, São Paulo 04044-020, Brazil
| | - Jacob van den Born
- Department Nephrology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, De Brug, 4th Floor, AA53, 9713 GZ Groningen, The Netherlands
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15
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Yadav R, Preet S. Comparative assessment of green and chemically synthesized glutathione capped silver nanoparticles for antioxidant, mosquito larvicidal and eco-toxicological activities. Sci Rep 2023; 13:8152. [PMID: 37208391 DOI: 10.1038/s41598-023-35249-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 05/15/2023] [Indexed: 05/21/2023] Open
Abstract
A comparative assessment of AgNPs synthesized through three different routes viz. clove bud extract mediated AgNPs, sodium borohydride AgNPs and Glutathione (GSH) capped AgNPs for antioxidant and mosquito larvicidal activities was the major focus of the present study. The nanoparticles were characterized using UV-VIS spectrophotometry, dynamic light scattering (DLS), X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and Fourier Transform Infrared Spectroscopy (FTIR) analysis. Characterization studies revealed the synthesis of stable, crystalline AgNPs measuring 28 nm, 7 nm and 36 nm for green, chemical and GSH-capped AgNPs respectively. FTIR analysis exhibited the surface functional moieties that were responsible for reduction, capping and stabilizing AgNPs. Antioxidant activity was found to be 74.11%, 46.62% and 58.78% for clove, borohydride and GSH-capped AgNPs respectively. Mosquito larvicidal bioactivity of AgNPs against Aedes aegypti IIIrd instar larvae depicted clove AgNPs being most effective (LC50-4.9 ppm, LC90-30.2 ppm) followed by GSH-capped (LC50-20.13 ppm, LC90-46.63 ppm) and borohydride AgNPs (LC50-13.43 ppm, LC90-160.19 ppm) after 24 h. Toxicity screening against aquatic model Daphnia magna revealed Clove mediated and GSH-capped AgNPs to be safer as compared to the borohydride AgNPs. It may be envisaged that green and capped AgNPs may be further explored for diverse biomedical and therapeutic applications.
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Affiliation(s)
- Radha Yadav
- Department of Zoology, Faculty of Science, Dayalbagh Educational Institute, (Deemed to be University) Dayalbagh, Agra, 282005, India
| | - Shabad Preet
- Department of Zoology, Faculty of Science, Dayalbagh Educational Institute, (Deemed to be University) Dayalbagh, Agra, 282005, India.
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16
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Gregory JW, Gong Y, Han Y, Huband S, Walton RI, Hessel V, Rebrov EV. Au/TiO2 coatings for photocatalytic reduction of 4-nitrophenol to 4-aminophenol with green light. Catal Today 2023. [DOI: 10.1016/j.cattod.2023.114145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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17
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Dynamic Light Scattering: A Powerful Tool for In Situ Nanoparticle Sizing. COLLOIDS AND INTERFACES 2023. [DOI: 10.3390/colloids7010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Due to surface effects and quantum size effects, nanomaterials have properties that are vastly different from those of bulk materials due to surface effects. The particle size distribution plays an important role in chemical and physical properties. The measurement and control of this parameter are crucial for nanomaterial synthesis. Dynamic light scattering (DLS) is a fast and non-invasive tool used to measure particle size, size distribution and stability in solutions or suspensions during nanomaterial preparation. In this review, we focus on the in situ sizing of nanomaterial preparation in the form of colloids, especially for metal oxide nanoparticles (MONs). The measuring principle, including an overview of sizing techniques, advantages and limitations and theories of DLS were first discussed. The instrument design was then investigated. Ex-situ and in situ configuration of DLS, sample preparations, measurement conditions and reaction cell design for in situ configuration were studied. The MONs preparation monitored by DLS was presented, taking into consideration both ex situ and in situ configuration.
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18
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Yao M, Ren X, Yin M, Chen H, Li X, Qian P. Nanoparticle vaccine based on the envelope protein domain III of Japanese encephalitis virus elicits robust protective immune responses in mice. Nanomedicine (Lond) 2023; 18:5-18. [PMID: 36789970 DOI: 10.2217/nnm-2022-0298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023] Open
Abstract
Aim: To develop a vaccine candidate for Japanese encephalitis virus (JEV), for which an effective and safe vaccine is urgently needed. Materials & methods: A vaccine candidate based on domain III of the JEV envelope protein and lumazine synthase (EDIII-LS) was prepared by coupling multivalent ED III to a self-assembling nanoparticle of LS through genetic fusion and self-assembly. Results: High enrichment of ED III was achieved based on the self-assembly of an EDIII-LS polymer. EDIII-LS strongly promoted dendritic cells' internalization and presentation compared with ED III monomer. The cellular and humoral immune responses provoked by EDIII-LS were remarkably higher than those caused by ED III in mice, and conferred complete protection against JEV challenge. Conclusion: The study of ED III-based nanoparticles suggests an effective approach against JEV.
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Affiliation(s)
- Manman Yao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Xujiao Ren
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Mengge Yin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Huanchun Chen
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Key Laboratory of Prevention & Control for African Swine Fever & Other Major Pig Diseases, Ministry of Agriculture & Rural Affairs, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, China
| | - Xiangmin Li
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Key Laboratory of Prevention & Control for African Swine Fever & Other Major Pig Diseases, Ministry of Agriculture & Rural Affairs, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, China
| | - Ping Qian
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Laboratory of Animal Virology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, Hubei, 430070, China.,Key Laboratory of Prevention & Control for African Swine Fever & Other Major Pig Diseases, Ministry of Agriculture & Rural Affairs, The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, Hubei, 430070, China
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19
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Sänger JC, Pauw BR, Riechers B, Zocca A, Rosalie J, Maaß R, Sturm H, Günster J. Entering a New Dimension in Powder Processing for Advanced Ceramics Shaping. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208653. [PMID: 36445940 DOI: 10.1002/adma.202208653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/14/2022] [Indexed: 06/16/2023]
Abstract
Filigree structures can be manufactured via two-photon polymerization (2PP) operating in the regime of nonlinear light absorption. For the first time, it is possible to apply this technique to the powder processing of ceramic structures with a feature size in the range of the critical defect sizes responsible for brittle fracture and, thus, affecting fracture toughness of high-performance ceramics. In this way, tailoring of advanced properties can be achieved already in the shaping process. Traditionally, 2PP relies on transparent polymerizable resins, which are diametrically opposed to the usually completely opaque ceramic resins and slurries. Here a transparent and photocurable suspension of nanoparticles (resin) with very high mass fractions of yttria-stabilized zirconia particles (YSZ) is presented. Due to the extremely well-dispersed nanoparticles, scattering of light can be effectively suppressed at the process-relevant wavelength of 800 nm. Sintered ceramic structures with a resolution of down to 500 nm are obtained. Even at reduced densities of 1-4 g cm-3 , the resulting compressive strength with 4.5 GPa is equivalent or even exceeding bulk monolithic yttria-stabilized zirconia. A ceramic metamaterial is born, where the mechanical properties of yttria-stabilized zirconia are altered by changing geometrical parameters, and gives access to a new class of ceramic materials.
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Affiliation(s)
- Johanna Christiane Sänger
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
| | - Brian Richard Pauw
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
| | - Birte Riechers
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
| | - Andrea Zocca
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
| | - Julian Rosalie
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
| | - Robert Maaß
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
| | - Heinz Sturm
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
- IWF, Technical University Berlin, Pascalstr. 8-9, 10587, Berlin, Germany
| | - Jens Günster
- Federal Institute for Materials Research and Testing (BAM), Unter den Eichen 87, 12205, Berlin, Germany
- Institute of Non-Metallic Materials, Clausthal University of Technology, 38678, Clausthal-Zellerfeld, Germany
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20
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Tadesse MG, Kasaw E, Lübben JF. Valorization of Banana Peel Using Carbonization: Potential Use in the Sustainable Manufacturing of Flexible Supercapacitors. MICROMACHINES 2023; 14:330. [PMID: 36838030 PMCID: PMC9962039 DOI: 10.3390/mi14020330] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Revised: 01/20/2023] [Accepted: 01/26/2023] [Indexed: 06/18/2023]
Abstract
Sustainable and environmentally friendly activated carbon from biomass materials is proposed to produce supercapacitors from banana peels and has the potential to replace the non-sustainable and hazardous process from either graphite or/and fossil fuels. In order to determine the potential of using banana peel for supercapacitor application, raw banana peel, a bio-waste, was activated both mechanically and chemically to observe the real differences. The sample was activated at 700 °C and chemically activated using KOH. Characterization of activated banana peel was performed using FTIR, DLS, TGA and XRD analytical equipment. FTIR analysis revised the presence of hydroxyl, carbonyl and aromatic compounds on a banana peel cellulose-based carbon. The TGA results proved that 700 °C could be sufficient to totally carbonize banana peel. DLS clearly showed a strong difference between the carbonized and KOH-activated material in particle size distribution. Meanwhile, surface area analysis using BET displayed an increase from 553.862 m2/g to 565.024 m2/g BET in surface area (SBET) when carbon was activated using KOH with a nitrogen isotherm at 77.350 K. Specific capacitance was increased from 0.3997 Fg-1 to 0.821 Fg-1, suggesting more than a 100% increase in the specific capacity due to KOH activation, as proved by the cyclic voltammetry (CV) curve. The X-ray diffraction results revealed the patterns of activated carbon. The findings demonstrated the feasibility of using banana peel waste as a low-cost and sustainable material for the preparation of flexible supercapacitor batteries.
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Affiliation(s)
- Melkie Getnet Tadesse
- Sustainable Engineering (STE), Albstadt-Sigmaringen University, 72458 Albstadt, Germany
- Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, Bahir Dar 1037, Ethiopia
| | - Esubalew Kasaw
- Ethiopian Institute of Textile and Fashion Technology, Bahir Dar University, Bahir Dar 1037, Ethiopia
| | - Jörn Felix Lübben
- Sustainable Engineering (STE), Albstadt-Sigmaringen University, 72458 Albstadt, Germany
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Limayem A, Mehta M, Kondos N, Kaushal D, Azam FB, Chellappan S, Qin N, Zhou Q. Evaluation of bactericidal effects of silver hydrosol nanotherapeutics against Enterococcus faecium 1449 drug resistant biofilms. Front Cell Infect Microbiol 2023; 12:1095156. [PMID: 36710982 PMCID: PMC9875038 DOI: 10.3389/fcimb.2022.1095156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 12/20/2022] [Indexed: 01/13/2023] Open
Abstract
Introduction Silver (Ag) nanoparticles (NPs) are well documented for their broad-spectrum bactericidal effects. This study aimed to test the effect of bioactive Ag-hydrosol NPs on drug-resistant E. faecium 1449 strain and explore the use of artificial intelligence (AI) for automated detection of the bacteria. Methods The formation of E. faecium 1449 biofilms in the absence and presence of Ag-hydrosol NPs at different concentrations ranging from 12.4 mg/L to 123 mg/L was evaluated using a 3-dimentional culture system. The biofilm reduction was evaluated using the confocal microscopy in addition to the Transmission Electronic Microscopy (TEM) visualization and spectrofluorimetric quantification using a Biotek Synergy Neo2 microplate reader. The cytotoxicity of the NPs was evaluated in human nasal epithelial cells using the MTT assay. The AI technique based on Fast Regional Convolutional Neural Network architecture was used for the automated detection of the bacteria. Results Treatment with Ag-hydrosol NPs at concentrations ranging from 12.4 mg/L to 123 mg/L resulted in 78.09% to 95.20% of biofilm reduction. No statistically significant difference in biofilm reduction was found among different batches of Ag-hydrosol NPs. Quantitative concentration-response relationship analysis indicated that Ag-hydrosol NPs exhibited a relative high anti-biofilm activity and low cytotoxicity with an average EC50 and TC50 values of 0.0333 and 6.55 mg/L, respectively, yielding an average therapeutic index value of 197. The AI-assisted TEM image analysis allowed automated detection of E. faecium 1449 with 97% ~ 99% accuracy. Discussion Conclusively, the bioactive Ag-hydrosol NP is a promising nanotherapeutic agent against drug-resistant pathogens. The AI-assisted TEM image analysis was developed with the potential to assess its treatment effect.
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Affiliation(s)
- Alya Limayem
- Department of Biology, College of Arts & Sciences, University of North Florida, Jacksonville, FL, United States,Department of Pharmaceutical Sciences, Graduate Program, Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States,*Correspondence: Alya Limayem, ; Qingyu Zhou,
| | - Mausam Mehta
- Department of Pharmaceutical Sciences, Graduate Program, Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States,Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Natalie Kondos
- Department of Pharmaceutical Sciences, Graduate Program, Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States,Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - Divya Kaushal
- Department of Pharmaceutical Sciences, Graduate Program, Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States
| | - Farhat Binte Azam
- Department of Computer Science & Engineering, College of Engineering, University of South Florida, Tampa, FL, United States
| | - Sriram Chellappan
- Department of Computer Science & Engineering, College of Engineering, University of South Florida, Tampa, FL, United States
| | - Nan Qin
- Department of R&D and Analytical Services, Natural Immunogenics Corporation, Sarasota, FL, United States
| | - Qingyu Zhou
- Department of Pharmaceutical Sciences, Graduate Program, Taneja College of Pharmacy, University of South Florida, Tampa, FL, United States,*Correspondence: Alya Limayem, ; Qingyu Zhou,
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22
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Hawadak J, Kojom Foko LP, Pande V, Singh V. In vitro antiplasmodial activity, hemocompatibility and temporal stability of Azadirachta indica silver nanoparticles. ARTIFICIAL CELLS, NANOMEDICINE, AND BIOTECHNOLOGY 2022; 50:286-300. [DOI: 10.1080/21691401.2022.2126979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Joseph Hawadak
- Parasite Host Biology Group, Cell Biology and Malaria Parasite Bank, ICMR-National Institute of Malaria Research (NIMR), New Delhi, India
- Department of Biotechnology, Kumaun University, Bhimtal, India
| | - Loick Pradel Kojom Foko
- Parasite Host Biology Group, Cell Biology and Malaria Parasite Bank, ICMR-National Institute of Malaria Research (NIMR), New Delhi, India
- Department of Biotechnology, Kumaun University, Bhimtal, India
| | - Veena Pande
- Department of Biotechnology, Kumaun University, Bhimtal, India
| | - Vineeta Singh
- Parasite Host Biology Group, Cell Biology and Malaria Parasite Bank, ICMR-National Institute of Malaria Research (NIMR), New Delhi, India
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Khan N, Gul T, Khan I, Alabbad EA, Ali S, Saeed K, Khan I. Scavenging of Organic Pollutant and Fuel Generation through Cost-Effective and Abundantly Accessible Rust: A Theoretical Support with DFT Simulations. MATERIALS (BASEL, SWITZERLAND) 2022; 16:142. [PMID: 36614481 PMCID: PMC9821181 DOI: 10.3390/ma16010142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/15/2023]
Abstract
Waste management and energy generation are the foremost concerns due to their direct relationship with biological species and the environment. Herein, we report the utilization of iron rust (inorganic pollutant) as a photocatalyst for the photodegradation of methylene blue (MB) dye (organic pollutant) under visible light (economic) and water oxidation (energy generation). Iron rust was collected from metallic pipes and calcined in the furnace at 700 °C for 3 h to remove the moisture/volatile content. The uncalcined and calcined rust NPs are characterized through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier-transform infrared (FTIR) analysis, X-ray Diffraction (XRD), and thermogravimetric analysis (TGA). The morphological study illustrated that the shape of uncalcined and calcined iron rust is spongy, porous, and agglomerated. The XRD and DLS particle sizes are in a few hundred nanometers range. The photodegradation (PD) investigation shows that calcined rust NPs are potent for the PD of modeled MB, and the degradation efficiency was about 94% in a very short time of 11 min. The photoelectrochemical (PEC) measurements revealed that calcined rust NPs are more active than uncalcined rust under simulated 1 SUN illumination with the respective photocurrent densities of ~0.40 and ~0.32 mA/cm2. The density functional theory simulations show the chemisorption of dye molecules over the catalyst surface, which evinces the high catalytic activity of the catalyst. These results demonstrate that cheaper and abundantly available rust can be useful for environmental and energy applications.
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Affiliation(s)
- Nisar Khan
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Charsadda 24540, Pakistan
| | - Tamanna Gul
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Charsadda 24540, Pakistan
| | - Idrees Khan
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Charsadda 24540, Pakistan
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710129, China
| | - Eman A. Alabbad
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1980, Dammam 31441, Saudi Arabia
| | - Shahid Ali
- Interdisciplinary Research Center for Hydrogen and Energy Storage, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Khalid Saeed
- Department of Chemistry, Bacha Khan University, Khyber Pakhtunkhwa, Charsadda 24540, Pakistan
| | - Ibrahim Khan
- School of Chemical Engineering and Materials Science, Chung-Ang University, 84 Heukseok-ro, Seoul 06974, Republic of Korea
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Antibiotic-modified ionic liquids-assisted preparation of biomedical Silver NPs with antibacterial, anti-colon cancer, antioxidant, cytotoxicity, and antifungal activity. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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25
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Detonation Synthesis Nanodiamond Soot as a Promising Filler for Polymer Composites. Mol Vis 2022. [DOI: 10.3390/c8040069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
In this work, the results of a complex investigation of structure and properties of nanodiamond soot (NDS) of detonation synthesis are presented. Size distribution of NDS particles, dispersed in different liquid media, was investigated using dynamic light scattering and laser diffraction analysis methods. The results of the investigation, as well as the results of zeta-potential measurements, allowed us to characterize the agglomeration process of the NDS particles as independent of the medium, making NDS a good model filler for research of composite-modified nanosized particles. Additional data obtained using scanning electron microscopy, scanning tunneling microscopy, atomic force microscopy, X-ray diffraction, and Raman spectroscopy, demonstrated that in NDS the spherical nanodiamond (ND) particles with diameter ~5 nm are densely packed into strong-coupled aggregates with diameter ~300 nm, surrounded by graphite nanoribbons. X-ray diffraction analysis estimated the volume fraction of NDs in NDS as ~45 vol.%, simultaneously showing that the graphite is not defective, which was confirmed with the electron diffraction method. It was demonstrated that this structure of NDS allows to efficiently use NDS as a filler for polymer composites to increase polymer characteristics such as electrical conductivity or tribological characteristics, similarly to conventionally applied fillers such as carbon black.
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Chunhachaichana C, Sawatdee S, Rugmai S, Srichana T. Development and characterization of nanodispersion-based sildenafil pressurized metered-dose inhaler using combined small-angle X-ray scattering, dynamic light scattering, and impactors. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Curcumin-loaded carrageenan nanoparticles: Fabrication, characterization, and assessment of the effects on osteoblasts mineralization. Colloids Surf B Biointerfaces 2022; 217:112622. [PMID: 35759898 DOI: 10.1016/j.colsurfb.2022.112622] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 06/03/2022] [Accepted: 06/07/2022] [Indexed: 01/14/2023]
Abstract
The use of Curcumin (CR) as a bioactive molecule to prevent and treat inflammation- related diseases is widespread. However, the high hydrophobicity hinders the in vivo bioavailability of CR, reducing its therapeutic index. In the present study, we described the use of nanoparticles (NPs) made of kappa-carrageenan (κ-Carr), a sulphated polysaccharide, as cost-effective, biodegradable and biocompatible CR carriers. CR-loaded κ-Carr nanoparticles (CR@Carr NPs) were prepared by mixing a κ-Carr aqueous solution with a CR ethanolic solution. The final suspension was centrifuged and re-suspended in phosphate buffer solution. The NPs' size was tuned by changing the concentration of the polysaccharide. CR@CarrNPs displayed high CR incorporation efficiency (~80 wt%) and a double-exponential curve of CR release at physiological conditions (37 °C and pH 7.4) with a cumulative drug release of 32 wt% after 24 h for the smaller NP. Our results also showed that CR@CarrNPs were not cytotoxic to osteoblasts at concentrations up to 1 μM. Confocal microscopy images revealed the internalization of CR by the cells guided by the NPs. Cells treated with CR@CarrNPs exhibited higher activity of alkaline phosphatase and higher expression of the main osteogenic genes (Sp7, Col1 and Runx2), and mineralized the extracellular matrix in a higher extent compared to the cells cultivated in absence of the NPs. We posited that these effects were related to the NP-driven internalization of CR by osteoblasts. Our study sheds light on the possible use of CR@CarrNPs as efficient and safe therapeutic tools for the treatment of bone-related diseases.
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Alregeb F, Khalili F, Sweileh B, Ali DK. Synthesis and Characterization of Chelating Hyperbranched Polyester Nanoparticles for Cd(II) Ion Removal from Water. Molecules 2022; 27:molecules27123656. [PMID: 35744784 PMCID: PMC9231149 DOI: 10.3390/molecules27123656] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 06/03/2022] [Accepted: 06/04/2022] [Indexed: 12/03/2022] Open
Abstract
Chelating hyperbranched polyester (CHPE) nanoparticles have become an attractive new material family for developing high-capacity nanoscale chelating agents with highly branched structures and many functional groups in the main chains and end groups that can be used to remove heavy metals from water. In this study, a hyperbranched polyester with a particle size of 180–643 nm was synthesized with A2+B3 interfacial polymerization, using dimethylmalonyl chloride as the difunctional monomer (A2) and 1,1,1-tris(4-hydroxyphenyl)ethane (THPE) as the trifunctional monomer (B3). FTIR and NMR were used to characterize the CHPE and confirm the structure. The CHPE nanoparticles were generally considered hydrophilic, with an observed swelling capacity of 160.70%. The thermal properties of the CHPE nanoparticles were studied by thermal gravimetric analysis (TGA) with 1% mass loss at temperatures above 185 °C. The XRD of the CHPE nanoparticles showed a semi-crystalline pattern, as evident from the presence of peaks at positions ~18° and 20°. The nature of the surface of the CHPE was examined using SEM. Batch equilibrium was used to investigate the removal properties of the CHPE nanoparticles towards Cd(II) ions as a function of temperature, contact time, and Cd(II) concentration. The Cd(II) ion thermodynamics, kinetics, and desorption data on the CHPE nanoparticles were also studied.
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Affiliation(s)
- Faten Alregeb
- Faculty of Science Arts and Sciences, Middle East University, Amman 11610, Jordan;
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman 1118, Jordan; (F.K.); (B.S.)
| | - Fawwaz Khalili
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman 1118, Jordan; (F.K.); (B.S.)
| | - Bassam Sweileh
- Department of Chemistry, Faculty of Science, The University of Jordan, Amman 1118, Jordan; (F.K.); (B.S.)
| | - Dalia Khalil Ali
- Faculty of Allied Medical Sciences, Isra University, Amman 11622, Jordan
- Correspondence: ; Tel.: +962-79727417
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Liu L, Jing Y, Guo A, Li X, Li Q, Liu W, Zhang X. Biosynthesis of Platinum Nanoparticles with Cordyceps Flower Extract: Characterization, Antioxidant Activity and Antibacterial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1904. [PMID: 35683759 PMCID: PMC9182170 DOI: 10.3390/nano12111904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 05/24/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022]
Abstract
The aim of this work is to develop a green route for platinum nanoparticles (PtNPs) biosynthesized using Cordyceps flower extract and to evaluate their antioxidant activity and antibacterial activity. Different characterization techniques were utilized to characterize the biosynthetic PtNPs. The results showed that PtNPs were spherical particles covered with Cordyceps flower extract. The average particle size of PtNPs in Dynamic Light Scattering was 84.67 ± 5.28 nm, while that of PtNPs in Transmission Electron Microscope was 13.34 ± 4.06 nm. Antioxidant activity of PtNPs was evaluated by DPPH free radical scavenging ability test. The results showed that the antioxidant activity was positively correlated with the concentration of PtNPs, the DPPH scavenging efficiency of PtNPs (0.50-125.00 μg/mL) was 27.77-44.00%. In addition, the morphological changes of four kinds of bacteria (Escherichia coli, Salmonella typhimurium, Bacillus subtilis, Staphylococcus aureus) exposed to PtNPs were observed by scanning electron microscope. The results showed that the antibacterial activity of PtNPs against Gram-negative bacteria was stronger than that of Gram-positive bacteria.
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Affiliation(s)
- Ling Liu
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China; (L.L.); (Q.L.); (W.L.); (X.Z.)
| | - Yun Jing
- Kaibei Technology (Suzhou) Co., Ltd., Suzhou 215000, China; (Y.J.); (X.L.)
| | - Ailing Guo
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China; (L.L.); (Q.L.); (W.L.); (X.Z.)
| | - Xiaojing Li
- Kaibei Technology (Suzhou) Co., Ltd., Suzhou 215000, China; (Y.J.); (X.L.)
| | - Qun Li
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China; (L.L.); (Q.L.); (W.L.); (X.Z.)
| | - Wukang Liu
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China; (L.L.); (Q.L.); (W.L.); (X.Z.)
| | - Xinshuai Zhang
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan 430070, China; (L.L.); (Q.L.); (W.L.); (X.Z.)
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Yang X, Liu G, Huo L, Dong H, Zhong H. Alkane solubilization by surfactants: Aggregate view and size analysis based on cryo-TEM. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Effect of size distribution, skewness and roughness on the optical properties of colloidal plasmonic nanoparticles. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128521] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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32
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Mills AM, Strzalka J, Bernat A, Rao Q, Hallinan DT. Magnetic-Core/Gold-Shell Nanoparticles for the Detection of Hydrophobic Chemical Contaminants. NANOMATERIALS 2022; 12:nano12081253. [PMID: 35457961 PMCID: PMC9027997 DOI: 10.3390/nano12081253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/21/2022] [Accepted: 03/29/2022] [Indexed: 02/01/2023]
Abstract
Magnetic-core/gold-shell nanoparticles (MAuNPs) are of interest for enabling rapid and portable detection of trace adulterants in complex media. Gold coating provides biocompatibility and facile functionalization, and a magnetic core affords analyte concentration and controlled deposition onto substrates for surface-enhanced Raman spectroscopy. Iron oxide cores were synthesized and coated with gold by reduction of HAuCl4 by NH2OH. MAuNPs were grafted with polyethylene glycol (PEG) and/or functionalized with 4-mercaptobenzoic acid (4-MBA) and examined using a variety of microscopic, spectroscopic, magnetometric, and scattering techniques. For MAuNPs grafted with both PEG and 4-MBA, the order in which they were grafted impacted not only the graft density of the individual ligands, but also the overall graft density. Significant Raman signal enhancement of the model analyte, 4-MBA, was observed. This enhancement demonstrates the functionality of MAuNPs in direct detection of trace contaminants. The magnetic deposition rate of MAuNPs in chloroform and water was explored. The presence of 4-MBA slowed the mass deposition rate, and it was postulated that the rate disparity originated from differing NP-substrate surface interactions. These findings emphasize the importance of ligand choice in reference to the medium, target analyte, and substrate material, as well as functionalization procedure in the design of similar sensing platforms.
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Affiliation(s)
- Anna M. Mills
- Chemical and Biomedical Engineering Department, Florida A&M University—Florida State University College of Engineering, Tallahassee, FL 32310, USA;
- Aero-Propulsion, Mechatronics, and Energy Center, Florida State University, Tallahassee, FL 32310, USA
| | - Joseph Strzalka
- Argonne National Laboratory, X-ray Science Division, Lemont, IL 60439, USA;
| | - Andrea Bernat
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.B.); (Q.R.)
| | - Qinchun Rao
- Department of Nutrition and Integrative Physiology, Florida State University, Tallahassee, FL 32306, USA; (A.B.); (Q.R.)
| | - Daniel T. Hallinan
- Chemical and Biomedical Engineering Department, Florida A&M University—Florida State University College of Engineering, Tallahassee, FL 32310, USA;
- Aero-Propulsion, Mechatronics, and Energy Center, Florida State University, Tallahassee, FL 32310, USA
- Correspondence: ; Tel.: +1-850-645-0131
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Sipkens TA, Menser J, Dreier T, Schulz C, Smallwood GJ, Daun KJ. Laser-induced incandescence for non-soot nanoparticles: recent trends and current challenges. APPLIED PHYSICS. B, LASERS AND OPTICS 2022; 128:72. [PMID: 35308124 PMCID: PMC8921179 DOI: 10.1007/s00340-022-07769-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
Laser-induced incandescence (LII) is a widely used combustion diagnostic for in situ measurements of soot primary particle sizes and volume fractions in flames, exhaust gases, and the atmosphere. Increasingly, however, it is applied to characterize engineered nanomaterials, driven by the increasing industrial relevance of these materials and the fundamental scientific insights that may be obtained from these measurements. This review describes the state of the art as well as open research challenges and new opportunities that arise from LII measurements on non-soot nanoparticles. An overview of the basic LII model, along with statistical techniques for inferring quantities-of-interest and associated uncertainties is provided, with a review of the application of LII to various classes of materials, including elemental particles, oxide and nitride materials, and non-soot carbonaceous materials, and core-shell particles. The paper concludes with a discussion of combined and complementary diagnostics, and an outlook of future research.
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Affiliation(s)
- Timothy A. Sipkens
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Jan Menser
- IVG, Institute for Combustion and Gas Dynamics – Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Thomas Dreier
- IVG, Institute for Combustion and Gas Dynamics – Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Christof Schulz
- IVG, Institute for Combustion and Gas Dynamics – Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Gregory J. Smallwood
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Kyle J. Daun
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, N2L 3G1 Canada
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Sipkens TA, Menser J, Dreier T, Schulz C, Smallwood GJ, Daun KJ. Laser-induced incandescence for non-soot nanoparticles: recent trends and current challenges. APPLIED PHYSICS. B, LASERS AND OPTICS 2022; 128:72. [PMID: 35308124 DOI: 10.1007/s00340-006-2260-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 01/24/2022] [Indexed: 05/23/2023]
Abstract
Laser-induced incandescence (LII) is a widely used combustion diagnostic for in situ measurements of soot primary particle sizes and volume fractions in flames, exhaust gases, and the atmosphere. Increasingly, however, it is applied to characterize engineered nanomaterials, driven by the increasing industrial relevance of these materials and the fundamental scientific insights that may be obtained from these measurements. This review describes the state of the art as well as open research challenges and new opportunities that arise from LII measurements on non-soot nanoparticles. An overview of the basic LII model, along with statistical techniques for inferring quantities-of-interest and associated uncertainties is provided, with a review of the application of LII to various classes of materials, including elemental particles, oxide and nitride materials, and non-soot carbonaceous materials, and core-shell particles. The paper concludes with a discussion of combined and complementary diagnostics, and an outlook of future research.
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Affiliation(s)
- Timothy A Sipkens
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Jan Menser
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Thomas Dreier
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Christof Schulz
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Gregory J Smallwood
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Kyle J Daun
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, N2L 3G1 Canada
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35
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Longo A, Giannici F, Casaletto MP, Rovezzi M, Sahle CJ, Glatzel P, Joly Y, Martorana A. Dynamic Role of Gold d-Orbitals during CO Oxidation under Aerobic Conditions. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05739] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alessandro Longo
- ESRF - The European Synchrotron, CS 40220, 38043 Cedex 9 Grenoble, France
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Francesco Giannici
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy
| | - Maria Pia Casaletto
- Istituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Via Ugo La Malfa 153, 90146 Palermo, Italy
| | - Mauro Rovezzi
- ESRF - The European Synchrotron, CS 40220, 38043 Cedex 9 Grenoble, France
- Universitè Grenoble Alpes, CNRS, IRD, Irstea, Météo France, OSUG, FAME, 71 Avenue des Martyrs, CS 40220, 38043 Grenoble, France
| | - Christoph J. Sahle
- ESRF - The European Synchrotron, CS 40220, 38043 Cedex 9 Grenoble, France
| | - Pieter Glatzel
- ESRF - The European Synchrotron, CS 40220, 38043 Cedex 9 Grenoble, France
| | - Yves Joly
- Universitè Grenoble Alpes Inst NEEL, 38042 Grenoble (France) and CNRS, Inst NEEL, 38042 Grenoble, France
| | - Antonino Martorana
- Dipartimento di Fisica e Chimica, Università di Palermo, Viale delle Scienze, I-90128 Palermo, Italy
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Sipkens TA, Menser J, Dreier T, Schulz C, Smallwood GJ, Daun KJ. Laser-induced incandescence for non-soot nanoparticles: recent trends and current challenges. APPLIED PHYSICS. B, LASERS AND OPTICS 2022. [PMID: 35308124 DOI: 10.1007/s00340-016-6551-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Laser-induced incandescence (LII) is a widely used combustion diagnostic for in situ measurements of soot primary particle sizes and volume fractions in flames, exhaust gases, and the atmosphere. Increasingly, however, it is applied to characterize engineered nanomaterials, driven by the increasing industrial relevance of these materials and the fundamental scientific insights that may be obtained from these measurements. This review describes the state of the art as well as open research challenges and new opportunities that arise from LII measurements on non-soot nanoparticles. An overview of the basic LII model, along with statistical techniques for inferring quantities-of-interest and associated uncertainties is provided, with a review of the application of LII to various classes of materials, including elemental particles, oxide and nitride materials, and non-soot carbonaceous materials, and core-shell particles. The paper concludes with a discussion of combined and complementary diagnostics, and an outlook of future research.
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Affiliation(s)
- Timothy A Sipkens
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Jan Menser
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Thomas Dreier
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Christof Schulz
- IVG, Institute for Combustion and Gas Dynamics - Reactive Fluids, and CENIDE, Center for Nanointegration Duisburg Essen, University of Duisburg-Essen, 47057 Duisburg, Germany
| | - Gregory J Smallwood
- Metrology Research Centre, National Research Council Canada, Ottawa, K1K 2E1 Canada
| | - Kyle J Daun
- Department of Mechanical and Mechatronics Engineering, University of Waterloo, Waterloo, N2L 3G1 Canada
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Ma X, Lang J, Chen P, Yang R. Silver Nanoparticles as an Effective Antimicrobial against Otitis Media Pathogens. AIChE J 2021; 67:e17468. [PMID: 35450419 PMCID: PMC9017526 DOI: 10.1002/aic.17468] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 09/14/2021] [Indexed: 01/06/2023]
Abstract
Otitis Media (OM) is the most common reason for U.S. children to receive prescribed oral antibiotics, leading to potential to cause antibiotic resistance. To minimize oral antibiotic usage, we developed polyvinylpyrrolidone-coated silver nanoparticles (AgNPs-PVP), which completely eradicated common OM pathogens, i.e., Streptococcus pneumoniae and non-typeable Haemophilus influenzae (NTHi) at 1.04μg/mL and 2.13μg/mL. The greater antimicrobial efficacy against S. pneumoniae was a result of the H2O2-producing ability of S. pneumoniae and the known synergistic interactions between H2O2 and AgNPs. To enable the sustained local delivery of AgNPs-PVP (e.g., via injection through perforated tympanic membranes), a hydrogel formulation of 18%(w/v)P407 was developed. Reverse thermal gelation of the AgNPs-PVP-P407 hydrogel could gel rapidly upon entering the warm auditory bullae and thereby sustained release of antimicrobials. This hydrogel-based local delivery system completely eradicated OM pathogens in vitro without cytotoxicity, and thus represents a promising strategy for treating bacterial OM without relying on conventional antibiotics.
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Affiliation(s)
- Xiaojing Ma
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, NY 14850, USA
| | - Jiayan Lang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, NY 14850, USA
| | - Pengyu Chen
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, NY 14850, USA
| | - Rong Yang
- Robert F. Smith School of Chemical & Biomolecular Engineering, Cornell University, Ithaca, NY 14850, USA
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Antezana PE, Municoy S, Pérez CJ, Desimone MF. Collagen Hydrogels Loaded with Silver Nanoparticles and Cannabis Sativa Oil. Antibiotics (Basel) 2021; 10:antibiotics10111420. [PMID: 34827358 PMCID: PMC8615148 DOI: 10.3390/antibiotics10111420] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/16/2021] [Accepted: 11/18/2021] [Indexed: 11/24/2022] Open
Abstract
Wounds represent a major healthcare problem especially in hospital-associated infections where multi-drug resistant strains are often involved. Nowadays, biomaterials with therapeutic molecules play an active role in wound healing and infection prevention. In this work, the development of collagen hydrogels loaded with silver nanoparticles and Cannabis sativa oil extract is described. The presence of the silver nanoparticles gives interesting feature to the biomaterial such as improved mechanical properties or resistance to collagenase degradation but most important is the long-lasting antimicrobial effect. Cannabis sativa oil, which is known for its anti-inflammatory and analgesic effects, possesses antioxidant activity and successfully improved the biocompatibility and also enhances the antimicrobial activity of the nanocomposite. Altogether, these results suggest that this novel nanocomposite biomaterial is a promising alternative to common treatments of wound infections and wound healing.
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Affiliation(s)
- Pablo Edmundo Antezana
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Junín 956, Buenos Aires 1113, Argentina; (P.E.A.); (S.M.)
| | - Sofia Municoy
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Junín 956, Buenos Aires 1113, Argentina; (P.E.A.); (S.M.)
| | - Claudio Javier Pérez
- Grupo Ciencia y Tecnología de Polímeros, Instituto de Investigaciones en Ciencia y Tecnología de Materiales (INTEMA), Universidad Nacional de Mar del Plata, Juan B. Justo 4302, Mar del Plata 7600, Argentina;
| | - Martin Federico Desimone
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Junín 956, Buenos Aires 1113, Argentina; (P.E.A.); (S.M.)
- Correspondence:
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Figueiredo P, Lahtinen MH, Agustin MB, de Carvalho DM, Hirvonen S, Penttilä PA, Mikkonen KS. Green Fabrication Approaches of Lignin Nanoparticles from Different Technical Lignins: A Comparison Study. CHEMSUSCHEM 2021; 14:4718-4730. [PMID: 34398512 PMCID: PMC8596756 DOI: 10.1002/cssc.202101356] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/13/2021] [Indexed: 06/13/2023]
Abstract
The production of lignin nanoparticles (LNPs) has emerged as a way to overcome the highly variable and complex molecular structure of lignin. It can offer morphological control of the lignin polymer, allowing the formation of stable LNP dispersions in aqueous media, while increasing the potential of lignin for high-value applications. However, the polydispersity and morphology of LNPs varies depending on the lignin grade and preparation method, and a systematic comparison using different technical lignins is lacking. In this study, it was attempted to find a green fabrication method with a distinct solvent fractionation of lignin to prepare LNPs using three different technical lignins as starting polymers: BLN birch lignin (hardwood, BB), alkali Protobind 1000 (grass, PB), and kraft LignoBoost (softwood, LB). For that, three anti-solvent precipitation approaches to prepare LNPs were systematically compared: 70 % aqueous ethanol, acetone/water (3 : 1) and NaOH as the lignin solvent, and water/aqueous HCl as the anti-solvent. Among all these methods, the acetone/water (3 : 1) approach allowed production of homogeneous and monodisperse LNPs with a negative surface charge and also spherical and smooth surfaces. Overall, the results revealed that the acetone/water (3 : 1) method was the most effective approach tested to obtain homogenous, small, and spherical LNPs from the three technical lignins. These LNPs exhibited an improved stability at different ionic strengths and a wider pH range compared to the other preparation methods, which can greatly increase their application in many fields, such as pharmaceutical and food sciences.
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Affiliation(s)
- Patrícia Figueiredo
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of HelsinkiP.O. Box 6600014HelsinkiFinland
| | - Maarit H. Lahtinen
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of HelsinkiP.O. Box 6600014HelsinkiFinland
| | - Melissa B. Agustin
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of HelsinkiP.O. Box 6600014HelsinkiFinland
| | - Danila Morais de Carvalho
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of HelsinkiP.O. Box 6600014HelsinkiFinland
| | - Sami‐Pekka Hirvonen
- Department of ChemistryFaculty of ScienceUniversity of HelsinkiP.O. Box 5500014HelsinkiFinland
| | - Paavo A. Penttilä
- Department of Bioproducts and BiosystemsAalto UniversityP.O. Box 1630000076AaltoFinland
| | - Kirsi S. Mikkonen
- Department of Food and NutritionFaculty of Agriculture and ForestryUniversity of HelsinkiP.O. Box 6600014HelsinkiFinland
- Helsinki Institute of Sustainability Science (HELSUS)University of HelsinkiP.O. Box 6500014HelsinkiFinland
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Bouzakher-Ghomrasni N, Taché O, Leroy J, Feltin N, Testard F, Chivas-Joly C. Dimensional measurement of TiO 2 (Nano) particles by SAXS and SEM in powder form. Talanta 2021; 234:122619. [PMID: 34364428 DOI: 10.1016/j.talanta.2021.122619] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 06/11/2021] [Accepted: 06/12/2021] [Indexed: 11/28/2022]
Abstract
The market for nano-additive materials has been growing exponentially since 2012, with almost 5040 consumer products containing nanoparticles in 2021. In parallel, the increasing recommendations, definitions and legislations underline the need for traceability of manufactured nanoparticles and for methods able to identify and quantify the "nano" dimensional character in manufactured product. From a multi-technic approach, this paper aims to compare the mesurands extracted from SAXS/BET (specific surface area) and SEM (diameter equivalent to a projected surface area) on different TiO2 powder issued from referenced, synthesized materials, raw materials (additives) and extracted materials from manufactured products. The influence of various parameters such as the anisotropic factor, the interaction between particles, the size distribution and the extraction steps are discussed to illustrate their impact on the diameter values issued from two different measurands. These results illustrate the difficulties in (nano)particles characterization. SEM and SAXS are complementary techniques depending on the level of dimensional characterization required.
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Affiliation(s)
- Najoua Bouzakher-Ghomrasni
- Laboratoire National de Métrologie et D'Essais, Nanometrology, CARMEN Platform, 29 Avenue Hennequin, 78197, Trappes Cedex, France
| | - Olivier Taché
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France
| | - Jocelyne Leroy
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France
| | - Nicolas Feltin
- Laboratoire National de Métrologie et D'Essais, Nanometrology, CARMEN Platform, 29 Avenue Hennequin, 78197, Trappes Cedex, France
| | - Fabienne Testard
- Université Paris-Saclay, CEA, CNRS, NIMBE, 91191, Gif-sur-Yvette, France.
| | - Carine Chivas-Joly
- Laboratoire National de Métrologie et D'Essais, Nanometrology, CARMEN Platform, 29 Avenue Hennequin, 78197, Trappes Cedex, France.
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Immunological Analysis of Nodavirus Capsid Displaying the Domain III of Japanese Encephalitis Virus Envelope Protein. Pharmaceutics 2021; 13:pharmaceutics13111826. [PMID: 34834244 PMCID: PMC8618745 DOI: 10.3390/pharmaceutics13111826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/13/2021] [Accepted: 10/17/2021] [Indexed: 11/29/2022] Open
Abstract
Japanese encephalitis virus (JEV) is the pathogen that causes Japanese encephalitis (JE) in humans and horses. Lethality of the virus was reported to be between 20–30%, of which, 30–50% of the JE survivors develop neurological and psychiatric sequelae. Attributed to the low effectiveness of current therapeutic approaches against JEV, vaccination remains the only effective approach to prevent the viral infection. Currently, live-attenuated and chimeric-live vaccines are widely used worldwide but these vaccines pose a risk of virulence restoration. Therefore, continuing development of JE vaccines with higher safety profiles and better protective efficacies is urgently needed. In this study, the Macrobrachium rosenbergii nodavirus (MrNV) capsid protein (CP) fused with the domain III of JEV envelope protein (JEV-DIII) was produced in Escherichia coli. The fusion protein (MrNV-CPJEV-DIII) assembled into virus-like particles (VLPs) with a diameter of approximately 18 nm. The BALB/c mice injected with the VLPs alone or in the presence of alum successfully elicited the production of anti-JEV-DIII antibody, with titers significantly higher than that in mice immunized with IMOJEV, a commercially available vaccine. Immunophenotyping showed that the MrNV-CPJEV-DIII supplemented with alum triggered proliferation of cytotoxic T-lymphocytes, macrophages, and natural killer (NK) cells. Additionally, cytokine profiles of the immunized mice revealed activities of cytotoxic T-lymphocytes, macrophages, and NK cells, indicating the activation of adaptive cellular and innate immune responses mediated by MrNV-CPJEV-DIII VLPs. Induction of innate, humoral, and cellular immune responses by the MrNV-CPJEV-DIII VLPs suggest that the chimeric protein is a promising JEV vaccine candidate.
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Beketova A, Theocharidou A, Tsamesidis I, Rigos AE, Pouroutzidou GK, Tzanakakis EGC, Kourtidou D, Liverani L, Ospina MA, Anastasiou A, Tzoutzas IG, Kontonasaki E. Sol-Gel Synthesis and Characterization of YSZ Nanofillers for Dental Cements at Different Temperatures. Dent J (Basel) 2021; 9:dj9110128. [PMID: 34821592 PMCID: PMC8619532 DOI: 10.3390/dj9110128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/23/2021] [Accepted: 10/26/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Yttria-stabilized zirconia nanoparticles can be applied as fillers to improve the mechanical and antibacterial properties of luting cement. The aim of this study was to synthesize yttria-stabilized zirconia nanoparticles by the sol-gel method and to investigate their composition, structure, morphology and biological properties. METHODS Nanopowders of ZrO2 7 wt% Y2O3 (nY-ZrO) were synthesized by the sol-gel method and were sintered at three different temperatures: 800, 1000 and 1200 °C, and their composition, size and morphology were investigated. The biocompatibility was investigated with human gingival fibroblasts (hGFs), while reactive oxygen species (ROS) production was evaluated through fluorescence analysis. RESULTS All synthesized materials were composed of tetragonal zirconia, while nanopowders sintered at 800 °C and 1000 °C additionally contained 5 and 20 wt% of the cubic phase. By increasing the calcination temperature, the crystalline size of the nanoparticles increased from 12.1 nm for nY-ZrO800 to 47.2 nm for nY-ZrO1200. Nano-sized particles with good dispersion and low agglomeration were received. Cell culture studies with human gingival fibroblasts verified the nanopowders' biocompatibility and their ROS scavenging activity. CONCLUSIONS the obtained sol-gel derived nanopowders showed suitable properties to be potentially used as nanofillers for dental luting cement.
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Affiliation(s)
- Anastasia Beketova
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Anna Theocharidou
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Ioannis Tsamesidis
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Athanasios E. Rigos
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
| | - Georgia K. Pouroutzidou
- School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (D.K.)
| | | | - Dimitra Kourtidou
- School of Physics, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (G.K.P.); (D.K.)
| | - Liliana Liverani
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (M.A.O.)
| | - Marcela Arango Ospina
- Department of Materials Science and Engineering, Institute of Biomaterials, University of Erlangen-Nuremberg, 91058 Erlangen, Germany; (L.L.); (M.A.O.)
| | - Antonios Anastasiou
- Department of Chemical Engineering and Analytical Science, University of Manchester, Manchester M13AL, UK;
| | - Ioannis G. Tzoutzas
- School of Dentistry, National and Kapodistrian University, 10679 Athens, Greece; (E.-G.C.T.); (I.G.T.)
| | - Eleana Kontonasaki
- Department of Prosthodontics, School of Dentistry, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.B.); (A.T.); (I.T.); (A.E.R.)
- Correspondence: ; Tel.: +30-2310-999517
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Wang X, Pei K, Sun H, Wang Q. A magnetic relaxation switch sensor for determination of 17β-estradiol in milk and eggs based on aptamer-functionalized Fe 3 O 4 @Au nanoparticles. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:5697-5706. [PMID: 33786831 DOI: 10.1002/jsfa.11224] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 02/08/2021] [Accepted: 03/31/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND A simple and rapid detection method for 17β-estradiol (E2 ) in complex food matrix is greatly desirable. A magnetic relaxation switch (MRS) sensor for detecting E2 based on the aptamer-functionalized gold-coated iron oxide (Fe3 O4 @Au) nanocomposite was designed in this study. Fe3 O4 @Au nanoparticles (NPs) played as a 'switch' between dispersed and aggregated states, while aptamer served as the recognition unit. RESULTS According to the sensing effect of monocomponent relaxation time (T2W ) for E2 , the volume ratio of aptamers to Fe3 O4 @Au, the sodium chloride (NaCl) concentration, the concentration of Fe3 O4 @Au@Apt, and reaction time were optimized to be 4:1, 0.03 mol L-1 , 4 μmol L-1 and 15 min, respectively. For the analysis of food sample, the E2 was quantified over a concentration range of 1 to 100 nmol L-1 with a detection limit of 7.6 nmol L-1 for milk samples, while a linearity range of 20 to 100 nmol L-1 and a detection limit of 8.57 nmol L-1 for egg samples. CONCLUSION These results exhibited that the MRS sensor could be a promising platform for the rapid detecting of E2 in food sample. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Xin Wang
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Kaili Pei
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
| | - Hanying Sun
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Graduate School of Fisheries and Environmental Sciences, Nagasaki University, Nagasaki, Japan
| | - Qi Wang
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai, China
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The self-assembly and thermoresponsivity of poly(isoprene-b-methyl methacrylate) copolymers in non-polar solvents. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110631] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Anadozie SO, Adewale OB, Meyer M, Davids H, Roux S. In vitroanti-oxidant and cytotoxic activities of gold nanoparticles synthesized from an aqueous extract of the Xylopia aethiopicafruit. NANOTECHNOLOGY 2021; 32:315101. [PMID: 33845465 DOI: 10.1088/1361-6528/abf6ee] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/12/2021] [Indexed: 06/12/2023]
Abstract
The development of gold nanoparticles (AuNPs) using a green approach has drawn considerable interest in the field of nanomedicine. Its wide application in clinical diagnosis, imaging and therapeutics portrays its importance for human existence. In this study, we reported on the biogenic synthesis of AuNPs using the aqueous extract of theXylopia aethiopicafruit (AEXAf), which acts as both a reducing and stabilizing agent. The characterization of AEXAf-AuNPs was performed using ultraviolet-visible spectroscopy, dynamic light scattering and zeta potential measurements, high-resolution transmission electron microscopy and Fourier transform-infrared spectroscopy. Thein vitroanti-oxidant activities of the AEXAf-AuNPs and AEXAf were evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and ferric reducing anti-oxidant power. Thein vitrocytotoxic activities of the AEXAf-AuNPs and AEXAf against breast and colorectal cancer cells were evaluated using 3,-(4,5 dimethylthiazol)-2,5 diphenyl tetrazolium bromide (MTT) viability and annexin V/PI assays. The AEXAf-AuNPs exhibited surface plasmon absorption maximum at 522 nm and were stable for 4 weeks. The average size of the AEXAf-AuNPs was 10.61 ± 3.33 nm on the high-resolution transmission electron microscopy images. Thein vitroanti-oxidant activities of the AEXAf-AuNPs and AEXAf were concentration dependent. The AEXAf-AuNPs were cytotoxic to the cancer cells and non-toxic to the non-cancerous human fibroblast cells (KMST-6) (up to 200μg ml-1). From these results, the AEXAf-AuNPs showed good anti-oxidant and anti-cancer activities, and can be suggested as a possible therapeutic agent for breast and colorectal cancer.
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Affiliation(s)
- Scholastica O Anadozie
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth, South Africa
- Department of Physiology, Nelson Mandela University, PO Box 77000, Port Elizabeth, South Africa
- Department of Chemical Science, Afe Babalola University, PMB 5454, Ado Ekiti, Ekiti State, Nigeria
| | - Olusola B Adewale
- Department of Biochemistry and Microbiology, Nelson Mandela University, PO Box 77000, Port Elizabeth, South Africa
- Department of Chemical Science, Afe Babalola University, PMB 5454, Ado Ekiti, Ekiti State, Nigeria
| | - Mervin Meyer
- DSI/Mintek Nanotechnology Innovation Centre, Department of Biotechnology, University of the Western Cape, PMB X17, Bellville 7535, South Africa
| | - Hajierah Davids
- Department of Physiology, Nelson Mandela University, PO Box 77000, Port Elizabeth, South Africa
| | - Saartjie Roux
- Department of Physiology, Nelson Mandela University, PO Box 77000, Port Elizabeth, South Africa
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Rigotto Caruso G, Tonani L, Marcato PD, von Zeska Kress MR. Phenothiazinium Photosensitizers Associated with Silver Nanoparticles in Enhancement of Antimicrobial Photodynamic Therapy. Antibiotics (Basel) 2021; 10:569. [PMID: 34066032 PMCID: PMC8150796 DOI: 10.3390/antibiotics10050569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/30/2021] [Accepted: 05/01/2021] [Indexed: 11/16/2022] Open
Abstract
Antimicrobial photodynamic therapy (APDT) and silver nanoparticles (AgNPs) are known as promising alternatives for the control of microorganisms. This study aims to evaluate the antifungal activity of APDT, particularly by using the association of low concentrations of phenothiazinium photosensitizers (PS) methylene blue (MB), new methylene blue N (NMBN), and new methylene blue N Zinc (NMBN-Zn) in association with biosynthesized AgNPs. The AgNPs were characterized by UV-Vis spectrophotometry, transmission electron microscopy, and the dynamic light scattering method. The minimum inhibitory concentration of compounds in APDT against Candida albicans and Fusarium keratoplasticum was obtained and the Fractional Inhibitory Concentration Index determined the antifungal effect. The toxicity of compounds and associations in APDT were evaluated in Galleria mellonella. The AgNPs presented a surface plasmon band peak at 420 nm, hydrodynamic diameter of 86.72 nm, and zeta potential of -28.6 mV. AgNPs-PS showed a wider and displaced plasmon band peak due to PS ligands on the surface and decreased zeta potential. AgNPs-NMBN and AgNPs-NMBN-Zn associations presented synergistic effect in APDT with 15 J cm-2 against both fungi and did not show toxicity to G. mellonella. Hence, the enhancement of antifungal activity with low concentrations of compounds and absence of toxicity makes APDT with AgNPs-PS a promising therapeutic alternative for fungal infections.
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Affiliation(s)
- Glaucia Rigotto Caruso
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 15040-903, SP, Brazil; (G.R.C.); (L.T.)
| | - Ludmilla Tonani
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 15040-903, SP, Brazil; (G.R.C.); (L.T.)
| | - Priscyla Daniely Marcato
- Department of Pharmaceutical Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 15040-903, SP, Brazil;
| | - Marcia Regina von Zeska Kress
- Department of Clinical Analysis, Toxicology and Food Sciences, School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto 15040-903, SP, Brazil; (G.R.C.); (L.T.)
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Beke D, Nardi MV, Bortel G, Timpel M, Czigány Z, Pasquali L, Chiappini A, Bais G, Rudolf M, Zalka D, Bigi F, Rossi F, Bencs L, Pekker A, Márkus BG, Salviati G, Saddow SE, Kamarás K, Simon F, Gali A. Enhancement of X-ray-Excited Red Luminescence of Chromium-Doped Zinc Gallate via Ultrasmall Silicon Carbide Nanocrystals. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2021; 33:2457-2465. [PMID: 33859456 PMCID: PMC8042637 DOI: 10.1021/acs.chemmater.0c04671] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/24/2021] [Indexed: 06/12/2023]
Abstract
X-ray-activated near-infrared luminescent nanoparticles are considered as new alternative optical probes due to being free of autofluorescence, while both their excitation and emission possess a high penetration efficacy in vivo. Herein, we report silicon carbide quantum dot sensitization of trivalent chromium-doped zinc gallate nanoparticles with enhanced near-infrared emission upon X-ray and UV-vis light excitation. We have found that a ZnGa2O4 shell is formed around the SiC nanoparticles during seeded hydrothermal growth, and SiC increases the emission efficiency up to 1 order of magnitude due to band alignment that channels the excited electrons to the chromium ion.
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Affiliation(s)
- Dávid Beke
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
- Department
of Atomic Physics, Budapest University of
Technology and Economics, Budafoki út 8., Budapest H-1111, Hungary
| | - Marco V. Nardi
- IMEM-CNR,
Institute of Materials for Electronic and Magnetism, Trento Unit C/o
Fondazione Bruno Kessler, Via Alla Cascata 56/C, Povo 38123, Trento, Italy
| | - Gábor Bortel
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Melanie Timpel
- IMEM-CNR,
Institute of Materials for Electronic and Magnetism, Trento Unit C/o
Fondazione Bruno Kessler, Via Alla Cascata 56/C, Povo 38123, Trento, Italy
| | - Zsolt Czigány
- Centre
for Energy Research, Institute for Technical
Physics and Materials Science, Konkoly-Thege M. út 29-33., Budapest H-1121, Hungary
| | - Luca Pasquali
- IOM-CNR
Institute, Area Science
Park, SS 14 Km, 163.5, Basovizza, Trieste 34149, Italy
- Engineering
Department, University of Modena e Reggio
Emilia, “E. Ferrari”,
Via Vivarelli 10, Modena 41125, Italy
- Department
of Physics, University of Johannesburg, P.O. Box 524, Auckland Park, Johannesburg 2006, South Africa
| | - Andrea Chiappini
- CNR-IFN,
CSMFO Lab, & FBK Photonics Unit, Via Alla Cascata 56/C, Povo, Trento 38123, Italy
| | - Giorgio Bais
- Elettra
- Sincrotrone Trieste, S.C.p.A., Area Science Park, Basovizza, SS 14 Km 163.5, Trieste 34149, Italy
| | - Mátyás Rudolf
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Dóra Zalka
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Franca Bigi
- Dipartimento
di Scienze Chimiche, Della Vita e Della Sostenibilità Ambientale, Università di Parma, Parma 43124, Italy
- IMEM Parma-CNR, Parma 43124, Italy
| | | | - László Bencs
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Aron Pekker
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Bence G. Márkus
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
- Department of Physics, Budapest University
of Technology and Economics and MTA-BME Lendület Spintronics
Research Group (PROSPIN), Budafoki út 8., Budapest H-1111, Hungary
| | | | - Stephen E. Saddow
- Department of
Electrical Engineering, University
of South Florida, 4202 East Fowler Avenue, Tampa 33620, Florida, United
States
| | - Katalin Kamarás
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
| | - Ferenc Simon
- Department of Physics, Budapest University
of Technology and Economics and MTA-BME Lendület Spintronics
Research Group (PROSPIN), Budafoki út 8., Budapest H-1111, Hungary
| | - Adam Gali
- Wigner
Research Centre for Physics, Institute for
Solid State Physics and Optics, P.O.
Box 49, Budapest H-1525, Hungary
- Department
of Atomic Physics, Budapest University of
Technology and Economics, Budafoki út 8., Budapest H-1111, Hungary
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48
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Zhao Z, Zhang X, Song X, Hao C. Fluorescence quenching mechanism of 9-hydroxyphenal-1-one carbon quantum dots by Cu2+ ions: An experimental and computational investigation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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49
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Ninyio NN, Ho KL, Yong CY, Chee HY, Hamid M, Ong HK, Mariatulqabtiah AR, Tan WS. Chimeric Virus-Like Particles of Prawn Nodavirus Displaying Hepatitis B Virus Immunodominant Region: Biophysical Properties and Cytokine Response. Int J Mol Sci 2021; 22:ijms22041922. [PMID: 33672018 PMCID: PMC7919259 DOI: 10.3390/ijms22041922] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/29/2021] [Accepted: 02/05/2021] [Indexed: 01/12/2023] Open
Abstract
Hepatitis B is a major global health challenge. In the absence of an effective treatment for the disease, hepatitis B vaccines provide protection against the viral infection. However, some individuals do not have positive immune responses after being vaccinated with the hepatitis B vaccines available in the market. Thus, it is important to develop a more protective vaccine. Previously, we showed that hepatitis B virus (HBV) ‘a’ determinant (aD) displayed on the prawn nodavirus capsid (Nc) and expressed in Spodoptera frugiperda (Sf9) cells (namely, Nc-aD-Sf9) self-assembled into virus-like particles (VLPs). Immunisation of BALB/c mice with the Nc-aD-Sf9 VLPs showed significant induction of humoral, cellular and memory B-cell immunity. In the present study, the biophysical properties of the Nc-aD-Sf9 VLPs were studied using dynamic light scattering (DLS) and circular dichroism (CD) spectroscopy. Enzyme-linked immunosorbent assay (ELISA) was used to determine the antigenicity of the Nc-aD-Sf9 VLPs, and multiplex ELISA was employed to quantify the cytokine response induced by the VLPs administered intramuscularly into BALB/c mice (n = 8). CD spectroscopy of Nc-aD-Sf9 VLPs showed that the secondary structure of the VLPs predominantly consisted of beta (β)-sheets (44.8%), and they were thermally stable up to ~52 °C. ELISA revealed that the aD epitope of the VLPs was significantly antigenic to anti-HBV surface antigen (HBsAg) antibodies. In addition, multiplex ELISA of serum samples from the vaccinated mice showed a significant induction (p < 0.001) of IFN-γ, IL-4, IL-5, IL-6, IL-10, and IL-12p70. This cytokine profile is indicative of natural killer cell, macrophage, dendritic cell and cytotoxic T-lymphocyte activities, which suggests a prophylactic innate and adaptive cellular immune response mediated by Nc-aD-Sf9 VLPs. Interestingly, Nc-aD-Sf9 induced a more robust release of the aforementioned cytokines than that of Nc-aD VLPs produced in Escherichia coli and a commercially used hepatitis B vaccine. Overall, Nc-aD-Sf9 VLPs are thermally stable and significantly antigenic, demonstrating their potential as an HBV vaccine candidate.
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Affiliation(s)
- Nathaniel Nyakaat Ninyio
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (N.N.N.); (C.Y.Y.); (M.H.)
- Department of Microbiology, Faculty of Science, Kaduna State University, P.M.B. 2339, Tafawa Balewa Way, Kaduna 800241, Nigeria
| | - Kok Lian Ho
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (K.L.H.); (H.K.O.)
| | - Chean Yeah Yong
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (N.N.N.); (C.Y.Y.); (M.H.)
| | - Hui Yee Chee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia;
| | - Muhajir Hamid
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (N.N.N.); (C.Y.Y.); (M.H.)
| | - Hui Kian Ong
- Department of Pathology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (K.L.H.); (H.K.O.)
| | - Abdul Razak Mariatulqabtiah
- Department of Cell and Molecular Biology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia;
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Selangor 43400, Malaysia
| | - Wen Siang Tan
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor 43400, Malaysia; (N.N.N.); (C.Y.Y.); (M.H.)
- Laboratory of Vaccine and Biomolecules, Institute of Bioscience, Universiti Putra Malaysia, Selangor 43400, Malaysia
- Correspondence: ; Tel.: +603-9769-6715; Fax: +603-9769-7590
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50
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Dharmaraj D, Krishnamoorthy M, Rajendran K, Karuppiah K, Annamalai J, Durairaj KR, Santhiyagu P, Ethiraj K. Antibacterial and cytotoxicity activities of biosynthesized silver oxide (Ag2O) nanoparticles using Bacillus paramycoides. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102111] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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