1
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Amornwairat P, Pissuwan D. Colorimetric Sensing of Gram-Negative and Gram-Positive Bacteria Using 4-Mercaptophenylboronic Acid-Functionalized Gold Nanoparticles in the Presence of Polyethylene Glycol. ACS OMEGA 2023; 8:13456-13464. [PMID: 37065017 PMCID: PMC10099429 DOI: 10.1021/acsomega.3c01205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 03/21/2023] [Indexed: 06/19/2023]
Abstract
Gold nanoparticles (GNPs) have been used as detection probes for rapid and sensitive detection of various analytes, including bacteria. Here, we demonstrate a simple strategy for bacterial detection using GNPs functionalized with 4-mercaptophenylboronic acid (4-MPBA). 4-MPBA can interact with peptidoglycan or lipopolysaccharides present in bacterial organelles. After the addition of a high concentration of sodium hydroxide (NaOH), the functionalization of the surface of 50 nm GNPs with 4-MPBA (4-MPBA@GNPs) in the presence of polyethylene glycol results in a color change because of the aggregation of 4-MPBA@GNPs. This color change is dependent on the amount of bacteria present in the tested samples. Escherichia coli (E. coli) K-12 and Staphylococcus aureus (S. aureus) are used as Gram-negative and Gram-positive bacterial models, respectively. The color change can be detected within an hour by the naked eye. A linear relationship is observed between bacterial concentrations and the absorbance intensity at 533 nm; R 2 values of 0.9152 and 0.8185 are obtained for E. coli K-12 and S. aureus, respectively. The limit of detection of E. coli K-12 is ∼2.38 × 102 CFU mL-1 and that of S. aureus is ∼4.77 × 103 CFU mL-1. This study provides a promising approach for the rapid detection of target Gram-negative and Gram-positive bacteria.
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Affiliation(s)
- Pinyapat Amornwairat
- Materials
and Engineering Graduate Program, Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
- Nanobiotechnology
and Nanobiomaterials Research Laboratory, School of Materials Science
and Innovation, Faculty of Science, Mahidol
University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
| | - Dakrong Pissuwan
- Materials
and Engineering Graduate Program, Faculty of Science, Mahidol University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
- Nanobiotechnology
and Nanobiomaterials Research Laboratory, School of Materials Science
and Innovation, Faculty of Science, Mahidol
University, Rama VI Road, Ratchathewi, Payathai, Bangkok 10400, Thailand
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2
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Ruijter N, Soeteman-Hernández LG, Carrière M, Boyles M, McLean P, Catalán J, Katsumiti A, Cabellos J, Delpivo C, Sánchez Jiménez A, Candalija A, Rodríguez-Llopis I, Vázquez-Campos S, Cassee FR, Braakhuis H. The State of the Art and Challenges of In Vitro Methods for Human Hazard Assessment of Nanomaterials in the Context of Safe-by-Design. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:472. [PMID: 36770432 PMCID: PMC9920318 DOI: 10.3390/nano13030472] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 06/18/2023]
Abstract
The Safe-by-Design (SbD) concept aims to facilitate the development of safer materials/products, safer production, and safer use and end-of-life by performing timely SbD interventions to reduce hazard, exposure, or both. Early hazard screening is a crucial first step in this process. In this review, for the first time, commonly used in vitro assays are evaluated for their suitability for SbD hazard testing of nanomaterials (NMs). The goal of SbD hazard testing is identifying hazard warnings in the early stages of innovation. For this purpose, assays should be simple, cost-effective, predictive, robust, and compatible. For several toxicological endpoints, there are indications that commonly used in vitro assays are able to predict hazard warnings. In addition to the evaluation of assays, this review provides insights into the effects of the choice of cell type, exposure and dispersion protocol, and the (in)accurate determination of dose delivered to cells on predictivity. Furthermore, compatibility of assays with challenging advanced materials and NMs released from nano-enabled products (NEPs) during the lifecycle is assessed, as these aspects are crucial for SbD hazard testing. To conclude, hazard screening of NMs is complex and joint efforts between innovators, scientists, and regulators are needed to further improve SbD hazard testing.
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Affiliation(s)
- Nienke Ruijter
- National Institute for Public Health & the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
| | | | - Marie Carrière
- Univ. Grenoble-Alpes, CEA, CNRS, SyMMES-CIBEST, 17 rue des Martyrs, 38000 Grenoble, France
| | - Matthew Boyles
- Institute of Occupational Medicine (IOM), Edinburgh EH14 4AP, UK
| | - Polly McLean
- Institute of Occupational Medicine (IOM), Edinburgh EH14 4AP, UK
| | - Julia Catalán
- Finnish Institute of Occupational Health, 00250 Helsinki, Finland
- Department of Anatomy, Embryology and Genetics, University of Zaragoza, 50013 Zaragoza, Spain
| | - Alberto Katsumiti
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain
| | | | | | | | | | - Isabel Rodríguez-Llopis
- GAIKER Technology Centre, Basque Research and Technology Alliance (BRTA), 48170 Zamudio, Spain
| | | | - Flemming R. Cassee
- National Institute for Public Health & the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
- Institute for Risk Assessment Sciences (IRAS), Utrecht University, 3584 CS Utrecht, The Netherlands
| | - Hedwig Braakhuis
- National Institute for Public Health & the Environment (RIVM), 3721 MA Bilthoven, The Netherlands
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3
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Brooks D, Piétrement O, Dardillac E, Jayantha A, Lores Guevara MA, Castro-Smirnov FA, Aranda P, Ruiz-Hitzky E, Lopez BS. Impact of Increased Sonication-Induced Dispersion of Sepiolite on Its Interaction with Biological Macromolecules and Toxicity/Proliferation in Human Cells. ACS OMEGA 2023; 8:1026-1036. [PMID: 36643441 PMCID: PMC9835666 DOI: 10.1021/acsomega.2c06391] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Sepiolite is a natural clay silicate that is widely used, including biomedical applications; notably sepiolite shows promising features for the transfer of biological macromolecules into mammalian cells. However, before its use, such an approach should address the efficiency of binding to biological macromolecules and cell toxicity. Because sepiolite spontaneously forms aggregates, its disaggregation can represent an important challenge for improving the suspension performance and the assembly with biological species. However, this can also influence the toxicity of sepiolite in mammalian cells. Here, a very pure commercial sepiolite (Pangel S9), which is present as a partially defibrillated clay mineral, is used to study the consequences of additional deagglomeration/dispersion through sonication. We analyzed the impact of extra sonication on the dispersion of sepiolite aggregates. Factors such as sonication time, sonicator power, and temperature are taken into account. With increasing sonication time, a decrease in aggregation is observed, as well as a decrease in the length of the nanofibers monitored by atomic force microscopy. Changes in the temperature and pH of the solution are also observed during the sonication process. Moreover, although the adsorption capacity of bovine serum albumin (BSA) protein on sepiolite is increased with sonication time, the DNA adsorption efficiency remains unaffected. Finally, sonication of sepiolite decreases the hemolytic activity in blood cells and the toxicity in two different human cell lines. These data show that extra sonication of deagglomerated sepiolite can further favor its interaction with some biomacromolecules (e.g., BSA), and, in parallel, decrease sepiolite toxicity in mammalian cells. Therefore, sonication represents an alluring procedure for future biomedical applications of sepiolite, even when using commercial defibrillated particles.
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Affiliation(s)
- David
Adame Brooks
- Université
de Paris Cité, INSERM U1016, UMR 8104 CNRS, Institut Cochin,
Equipe Labellisée Ligue Contre le Cancer, 24 Rue Du Faubourg St. Jacques, Paris75014, France
- Centro
de Biofísica Médica, Universidad de Oriente, Patricio Lumumba S/NSantiago de Cuba, CP 90500, Cuba
| | - Olivier Piétrement
- Laboratoire
Interdisciplinaire Carnot de Bourgogne, CNRS UMR 6303, Université
de Bourgogne-Franche-Comté, 9 Avenue Alain Savary, Dijon Cedex21078, France
| | - Elodie Dardillac
- Université
de Paris Cité, INSERM U1016, UMR 8104 CNRS, Institut Cochin,
Equipe Labellisée Ligue Contre le Cancer, 24 Rue Du Faubourg St. Jacques, Paris75014, France
| | - Ayesha Jayantha
- Laboratoire
Interdisciplinaire Carnot de Bourgogne, CNRS UMR 6303, Université
de Bourgogne-Franche-Comté, 9 Avenue Alain Savary, Dijon Cedex21078, France
| | - Manuel A. Lores Guevara
- Centro
de Biofísica Médica, Universidad de Oriente, Patricio Lumumba S/NSantiago de Cuba, CP 90500, Cuba
| | | | - Pilar Aranda
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, Madrid28049, Spain
| | - Eduardo Ruiz-Hitzky
- Instituto
de Ciencia de Materiales de Madrid, CSIC, c/Sor Juana Inés de la Cruz 3, Madrid28049, Spain
| | - Bernard S. Lopez
- Université
de Paris Cité, INSERM U1016, UMR 8104 CNRS, Institut Cochin,
Equipe Labellisée Ligue Contre le Cancer, 24 Rue Du Faubourg St. Jacques, Paris75014, France
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4
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Gkaravela A, Vareli I, Bekas DG, Barkoula NM, Paipetis AS. The Use of Electrochemical Impedance Spectroscopy as a Tool for the In-Situ Monitoring and Characterization of Carbon Nanotube Aqueous Dispersions. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4427. [PMID: 36558280 PMCID: PMC9786001 DOI: 10.3390/nano12244427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/06/2022] [Accepted: 12/08/2022] [Indexed: 06/17/2023]
Abstract
So far, there is no validated technology for characterizing the dispersion and morphology state of carbon nanotubes (CNTs) aqueous dispersions during sonication. Taking advantage of the conductive nature of CNTs, the main hypothesis of the current study is that Electrochemical Impedance Spectroscopy (EIS) is an appropriate technique for the in-situ monitoring and qualification of the dispersion state of CNTs in aqueous media. To confirm our hypothesis, we monitored the Impedance |Z| during the sonication process as a function of type CNTs/admixtures used for the preparation of the aqueous solutions and of crucial process parameters, such as the applied sonication power and duration (i.e., sonication energy). For dispersions above the percolation threshold, a drop of |Z| by approximately seven orders of magnitude was observed, followed by a linear reduction. The dramatic change in |Z| is regarded as an indication of the formation of a conductive path or destruction of an existing one during sonication and can be used to characterize the dispersion and morphology state of CNTs. The results of the EIS provide, straightforwardly and reliably, the required information to create an optimum dispersion protocol for conductive CNT suspensions. The produced dispersions are part of research focusing on the manufacturing of cement-based composite materials with advanced thermoelectric functionalities for energy harvesting. Such dispersions are not only limited to energy harvesting applications but also to applications where functionalities are introduced through the use of conductive-based suspensions.
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5
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Dukhopelnykov EV, Blyzniuk YN, Skuratovska AA, Bereznyak EG, Gladkovskaya NA. Interaction of doxorubicin delivered by superparamagnetic iron oxide nanoparticles with DNA. Colloids Surf B Biointerfaces 2022; 219:112815. [PMID: 36108366 DOI: 10.1016/j.colsurfb.2022.112815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 08/24/2022] [Accepted: 08/27/2022] [Indexed: 11/18/2022]
Abstract
We studied the interaction of superparamagnetic iron oxide nanoparticles (SPIONs), covered by trisodium citrate, with doxorubicin (DOX) and DNA using the spectrophotometric method. We calculated the binding parameters in the binary (DOX-SPION and SPION-DNA) and the ternary (DOX-SPION-DNA) systems. Our studies showed that the nanoparticles do not interact with DNA. We also observed that one nanoparticle loads rather a large number of DOX molecules with a quite high binding constant value (kDOX-SPION = 1.2 × 104 M-1). The DNA addition to the DOX-SPION system induces DOX release from the SPION surface and the formation of DOX-DNA complexes. The presence of nanoparticles has almost no effect on the constant of doxorubicin binding to DNA (kDOX-DNA ≈ 3 × 104 M-1). At high DNA concentrations, almost all DOX molecules bind to DNA. Accordingly, the use of SPIONs as DOX carriers does not require an increased drug dose to achieve a therapeutic effect. Thus, SPIONs are perspective nanocarriers for DOX delivery.
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Affiliation(s)
- E V Dukhopelnykov
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine.
| | - Yu N Blyzniuk
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - A A Skuratovska
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - E G Bereznyak
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
| | - N A Gladkovskaya
- O.Ya. Usikov Institute for Radiophysics and Electronics of National Academy of Sciences of Ukraine, Ak. Proskury str., 12, Kharkiv 61085, Ukraine
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6
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Dediu V, Busila M, Tucureanu V, Bucur FI, Iliescu FS, Brincoveanu O, Iliescu C. Synthesis of ZnO/Au Nanocomposite for Antibacterial Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12213832. [PMID: 36364608 PMCID: PMC9655429 DOI: 10.3390/nano12213832] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 10/26/2022] [Accepted: 10/26/2022] [Indexed: 06/01/2023]
Abstract
Annually, antimicrobial-resistant infections-related mortality worldwide accelerates due to the increased use of antibiotics during the coronavirus pandemic and the antimicrobial resistance, which grows exponentially, and disproportionately to the current rate of development of new antibiotics. Nanoparticles can be an alternative to the current therapeutic approach against multi-drug resistance microorganisms caused infections. The motivation behind this work was to find a superior antibacterial nanomaterial, which can be efficient, biocompatible, and stable in time. This study evaluated the antibacterial activity of ZnO-based nanomaterials with different morphologies, synthesized through the solvothermal method and further modified with Au nanoparticles through wet chemical reduction. The structure, crystallinity, and morphology of ZnO and ZnO/Au nanomaterials have been investigated with XRD, SEM, TEM, DLS, and FTIR spectroscopy. The antibacterial effect of unmodified ZnO and ZnO/Au nanomaterials against Escherichia coli and Staphylococcus aureus was investigated through disc diffusion and tetrazolium/formazan (TTC) assays. The results showed that the proposed nanomaterials exhibited significant antibacterial effects on the Gram-positive and Gram-negative bacteria. Furthermore, ZnO nanorods with diameters smaller than 50 nm showed better antibacterial activity than ZnO nanorods with larger dimensions. The antibacterial efficiency against Escherichia coli and Staphylococcus aureus improved considerably by adding 0.2% (w/w) Au to ZnO nanorods. The results indicated the new materials' potential for antibacterial applications.
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Affiliation(s)
- Violeta Dediu
- National Research and Development Institute in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
| | - Mariana Busila
- Centre of Nanostructures and Functional Materials-CNMF, “Dunarea de Jos” University of Galati, Domneasca Street 111, 800201 Galati, Romania
| | - Vasilica Tucureanu
- National Research and Development Institute in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
| | - Florentina Ionela Bucur
- Faculty of Food Science and Engineering, “Dunarea de Jos University” of Galati, Domneasca Street 111, 800201 Galati, Romania
| | - Florina Silvia Iliescu
- National Research and Development Institute in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
| | - Oana Brincoveanu
- National Research and Development Institute in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
| | - Ciprian Iliescu
- National Research and Development Institute in Microtechnologies—IMT Bucharest, 126A Erou Iancu Nicolae Street, 077190 Bucharest, Romania
- Faculty of Chemical Engineering and Biotechnologies, University “Politehnica” of Bucharest, 011061 Bucharest, Romania
- Academy of Romanian Scientists, 010071 Bucharest, Romania
- Regional Institute of Oncology, Iasi TRANSCEND Research Center, 2-4 General Henri Mathias Berthelot, 700483 Iasi, Romania
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7
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Glaubitz C, Rothen-Rutishauser B, Lattuada M, Balog S, Petri-Fink A. Designing the ultrasonic treatment of nanoparticle-dispersions via machine learning. NANOSCALE 2022; 14:12940-12950. [PMID: 36043853 PMCID: PMC9477382 DOI: 10.1039/d2nr03240f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Ultrasonication is a widely used and standardized method to redisperse nanopowders in liquids and to homogenize nanoparticle dispersions. One goal of sonication is to disrupt agglomerates without changing the intrinsic physicochemical properties of the primary particles. The outcome of sonication, however, is most of the time uncertain, and quantitative models have been beyond reach. The magnitude of this problem is considerable owing to fact that the efficiency of sonication is not only dependent on the parameters of the actual device, but also on the physicochemical properties such as of the particle dispersion itself. As a consequence, sonication suffers from poor reproducibility. To tackle this problem, we propose to involve machine learning. By focusing on four nanoparticle types in aqueous dispersions, we combine supervised machine learning and dynamic light scattering to analyze the aggregate size after sonication, and demonstrate the potential to improve considerably the design and reproducibility of sonication experiments.
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Affiliation(s)
- Christina Glaubitz
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
| | | | - Marco Lattuada
- Chemistry Department, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
| | - Sandor Balog
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
| | - Alke Petri-Fink
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland.
- Chemistry Department, University of Fribourg, Chemin du Musée 9, 1700 Fribourg, Switzerland
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8
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Al Rashaideh T, Metwali N, Perry SS, Adamcakova-Dodd A, Thorne PS. Cerium Oxide Enhances the Toxicity of Zinc Oxide Nanoparticles in Human Lung Epithelial Cell Cultures. TOXICS 2022; 10:522. [PMID: 36136487 PMCID: PMC9502999 DOI: 10.3390/toxics10090522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/25/2022] [Accepted: 08/29/2022] [Indexed: 06/16/2023]
Abstract
Recently, many approaches have been developed to improve the performance of nanomaterials. Combining more than one nanomaterial is one such approach that achieves superior results. However, during the fabrication of nanomaterials or formulation of end products, materials can be released into the ambient air and be inhaled by workers. The adverse health outcomes of inhaling such compounds are unknown. In this study, we examined such effects in combining two of the most utilized nanomaterials in several industrial sectors: zinc oxide (ZnO) and cerium oxide (CeO2). These materials can be found together in sunscreens, polyvinyl alcohol (PVA) films, and construction products. The aim of this study was to assess the adverse biological outcomes of CeO2-ZnO nano-mixtures in human lung epithelial cells. A549 human lung epithelial cells were treated with increasing concentrations of ZnO or CeO2 NPs alone, or as a mixture of both, under submerged conditions for 24 h. After treatment, cell viability, reactive oxygen species (ROS) formation, cell membrane integrity, and cytokine production were examined. ZnO NPs showed a dose-dependent trend for all endpoints. CeO2 NPs did not exhibit any toxic effect in any individual concentrations. When higher doses of ZnO were combined with increasing doses of CeO2, loss of cell viability and an elevation in cell membrane leakage were observed. Interleukin 8 (IL-8) and ROS generation were higher when ZnO NPs were combined with CeO2 NPs, compared to cells that were treated with ZnO alone. The release of monocyte chemoattractant protein-1 (MCP-1) was reduced in the cells that were treated with higher doses of ZnO and CeO2. Thus, the presence of CeO2 enhanced the toxicity of ZnO in A549 cells at non-toxic levels of CeO2. This suggests an additive toxicity of these two nanomaterials.
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Affiliation(s)
- Tasnim Al Rashaideh
- Human Toxicology Program, Graduate College, University of Iowa, Iowa City, IA 52242, USA
| | - Nervana Metwali
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| | - Sarah S. Perry
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| | - Andrea Adamcakova-Dodd
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
| | - Peter S. Thorne
- Human Toxicology Program, Graduate College, University of Iowa, Iowa City, IA 52242, USA
- Department of Occupational and Environmental Health, College of Public Health, University of Iowa, Iowa City, IA 52242, USA
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9
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Optimization of critical parameters for coating of polymeric nanoparticles with plasma membrane vesicles by sonication. Sci Rep 2021; 11:23996. [PMID: 34907240 PMCID: PMC8671476 DOI: 10.1038/s41598-021-03422-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 12/01/2021] [Indexed: 11/17/2022] Open
Abstract
Top-down functionalization of nanoparticles with cellular membranes imparts nanoparticles with enhanced bio-interfacing capabilities. Initial methods for membrane coating involved physical co-extrusion of nanoparticles and membrane vesicles through a porous membrane; however, recent works employ sonication as the disruptive force to reform membranes around the surface of nanoparticles. Although sonication is widely used, there remains a paucity of information on the effects of sonication variables on coating efficiency, leading to inconsistent membrane coating across studies. In this work, we present a systematic analysis of the sonication parameters that influence the membrane coating. The results showed that sonication amplitude, time, temperature, membrane ratio, sample volume, and density need to be considered in order to optimize membrane coating of polymeric nanoparticles.
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10
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Ullah F, Rauf W, Khan K, Khan S, Bell KM, de Oliveira VC, Tariq M, Bakhshalizadeh S, Touraine P, Katsanis N, Sinclair A, He S, Tucker EJ, Baig SM, Davis EE. A recessive variant in TFAM causes mtDNA depletion associated with primary ovarian insufficiency, seizures, intellectual disability and hearing loss. Hum Genet 2021; 140:1733-1751. [PMID: 34647195 DOI: 10.1007/s00439-021-02380-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 09/30/2021] [Indexed: 12/25/2022]
Abstract
Mitochondrial disorders are collectively common, genetically heterogeneous disorders in both pediatric and adult populations. They are caused by molecular defects in oxidative phosphorylation, failure of essential bioenergetic supply to mitochondria, and apoptosis. Here, we present three affected individuals from a consanguineous family of Pakistani origin with variable seizures and intellectual disability. Both females display primary ovarian insufficiency (POI), while the male shows abnormal sex hormone levels. We performed whole exome sequencing and identified a recessive missense variant c.694C > T, p.Arg232Cys in TFAM that segregates with disease. TFAM (mitochondrial transcription factor A) is a component of the mitochondrial replisome machinery that maintains mtDNA transcription and replication. In primary dermal fibroblasts, we show depletion of mtDNA and significantly altered mitochondrial function and morphology. Moreover, we observed reduced nucleoid numbers with significant changes in nucleoid size or shape in fibroblasts from an affected individual compared to controls. We also investigated the effect of tfam impairment in zebrafish; homozygous tfam mutants carrying an in-frame c.141_149 deletion recapitulate the mtDNA depletion and ovarian dysgenesis phenotypes observed in affected humans. Together, our genetic and functional data confirm that TFAM plays a pivotal role in gonad development and expands the repertoire of mitochondrial disease phenotypes.
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Affiliation(s)
- Farid Ullah
- National Institute for Biotechnology and Genetic Engineering (NIBGE-C), Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan.,Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Waqar Rauf
- National Institute for Biotechnology and Genetic Engineering (NIBGE-C), Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Kamal Khan
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Sheraz Khan
- National Institute for Biotechnology and Genetic Engineering (NIBGE-C), Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan.,Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA
| | - Katrina M Bell
- Department of Pediatrics, University of Melbourne, Melbourne, Australia.,Bioinformatics, Murdoch Children's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Vanessa Cristina de Oliveira
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil
| | - Muhammad Tariq
- National Institute for Biotechnology and Genetic Engineering (NIBGE-C), Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan
| | - Shabnam Bakhshalizadeh
- Department of Pediatrics, University of Melbourne, Melbourne, Australia.,Reproductive Development, MurdochChildren's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Philippe Touraine
- Department of Endocrinology and Reproductive Medicine, Center for Rare Endocrine and Gynecological Diseases, Sorbonne Université Pitié Salpétrière Hospital, Paris, France
| | - Nicholas Katsanis
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA.,Rescindo Therapeutics, Cary, NC, USA
| | - Andrew Sinclair
- Department of Pediatrics, University of Melbourne, Melbourne, Australia.,Reproductive Development, MurdochChildren's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | | | - Elena J Tucker
- Department of Pediatrics, University of Melbourne, Melbourne, Australia.,Reproductive Development, MurdochChildren's Research Institute, Royal Children's Hospital, Melbourne, Australia
| | - Shahid M Baig
- National Institute for Biotechnology and Genetic Engineering (NIBGE-C), Faisalabad, Pakistan.,Pakistan Institute of Engineering and Applied Sciences (PIEAS), Islamabad, Pakistan.,Pakistan Science Foundation, Constitution Avenue, Islamabad, Pakistan.,Department of Biological and Biomedical Sciences, Aga Khan University, Karachi, Pakistan
| | - Erica E Davis
- Stanley Manne Children's Research Institute, Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, USA. .,Department of Pediatrics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA. .,Department of Cell and Developmental Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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11
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Noman M, Ahmed T, Shahid M, Niazi MBK, Qasim M, Kouadri F, Abdulmajeed AM, Alghanem SM, Ahmad N, Zafar M, Ali S. Biogenic copper nanoparticles produced by using the Klebsiella pneumoniae strain NST2 curtailed salt stress effects in maize by modulating the cellular oxidative repair mechanisms. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 217:112264. [PMID: 33915453 DOI: 10.1016/j.ecoenv.2021.112264] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/05/2021] [Accepted: 04/14/2021] [Indexed: 06/12/2023]
Abstract
The negative effects of salinity on plant growth and physiology are well-established, which is one of the major threats to food security in semi-arid and arid regions of the world. The current research focuses on biosynthesis of copper nanoparticles (CuNPs) from a bacterial strain NST2, which was genetically identified as Klebsiella pneumoniae based on taxonomic identity of 16S rRNA gene. The strain was selected for bioprospecting of CuNPs owing to its Cu tolerance potential. The biologically-synthesized CuNPs were confirmed in culture by using ultraviolet visible spectroscopy. The material characteristics of green CuNPs were further investigated by using Fourier transform infrared spectroscopy, X-ray diffractometer, scanning electron microscopy and transmission electron microscopy, where crystallite size was ranged from 22.44 nm to 44.26 nm and particles were stabilized by various functional groups, such as carbonyl and amine groups. When 100 mg kg-1 of green CuNPs were mixed in saline soil in a pot experiment, the maize plants showed increased root and shoot length (43.52% and 44.06%, respectively), fresh weight (46.05% and 51.82%, respectively) and dry weight (47.69% and 30.63%, respectively) in comparison to control maize plants without CuNPs application. Moreover, green CuNPs at their highest treatment level (100 mg kg-1 of soil) counteracted the lipid peroxidation and oxidative damage in maize plants by promoting the activities of antioxidants and demoting the cellular levels of reactive oxygen species and ionic contents of Na+ and Cl-. Conclusively, biogenic CuNPs is an emerging and promising technique, which could replace traditional methods of salinity management in agricultural soils.
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Affiliation(s)
- Muhammad Noman
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan; National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, PR China
| | - Temoor Ahmed
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan; National Key Laboratory for Rice Biology, Institute of Biotechnology, Zhejiang University, Hangzhou 310058, PR China
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan.
| | - Muhammad Bilal Khan Niazi
- School of Chemical and Materials Engineering (SCME), National University of Sciences & Technology (NUST), Sector H-12, 44000 Islamabad, Pakistan
| | - Muhammad Qasim
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad 38000, Pakistan
| | - Fayza Kouadri
- Biology Department, Faculty of Science, Taibah University, AL-Madina AL-Munawarah, Saudi Arabia
| | - Awatif M Abdulmajeed
- Biology Department, Faculty of Science, University of Tabuk, Umluj 46429, Saudi Arabia
| | | | - Naveed Ahmad
- Department of Chemistry, Division of Science and Technology, University of Education, Lahore, Pakistan
| | - Mohsin Zafar
- Department of Soil and Environmental Sciences, University of Poonch, Rawalakot, Azad Jammu & Kashmir, Pakistan
| | - Shehbaz Ali
- Department of Bioscience and Technology, Khwaja Farid University of Engineering and Information Technology, Rahim Yar Khan, Pakistan
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12
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Jeon IS, Lee MH, Choi HH, Lee S, Chon JW, Chung DJ, Park JH, Jho JY. Mechanical Properties and Bioactivity of Polyetheretherketone/Hydroxyapatite/Carbon Fiber Composite Prepared by the Mechanofusion Process. Polymers (Basel) 2021; 13:polym13121978. [PMID: 34208634 PMCID: PMC8235454 DOI: 10.3390/polym13121978] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 05/27/2021] [Accepted: 06/11/2021] [Indexed: 11/16/2022] Open
Abstract
The main obstacles in the melt-processing of hydroxyapatite (HA) and carbon fiber (CF) reinforced polyetheretherketone (PEEK) composite are the high melting temperature of PEEK, poor dispersion of HA nanofillers, and poor processability due to high filler content. In this study, we prepared PEEK/HA/CF ternary composite using two different non-melt blending methods; suspension blending (SUS) in ethanol and mechanofusion process (MF) in dry condition. We compared the mechanical properties and bioactivity of the composite in a spinal cage application in the orthopedic field. Results showed that the PEEK/HA/CF composite made by the MF method exhibited higher flexural and compressive strengths than the composite prepared by the SUS method due to the enhanced dispersibility of HA nanofiller. On the basis of in vitro cell compatibility and cell attachment tests, PEEK/HA/CF composite by mechanofusion process showed an improvement in in vitro bioactivity and osteo-compatibility.
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Affiliation(s)
- In Sung Jeon
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (I.S.J.); (S.L.)
| | - Moon Hyun Lee
- Department of Polymer Science & Engineering, Sungkyunkwan University Suwon, Suwon 16419, Korea; (M.H.L.); (J.W.C.)
| | - Han-Hyeong Choi
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.-H.C.); (J.H.P.)
| | - Sangwoon Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (I.S.J.); (S.L.)
| | - Joon Woo Chon
- Department of Polymer Science & Engineering, Sungkyunkwan University Suwon, Suwon 16419, Korea; (M.H.L.); (J.W.C.)
| | - Dong June Chung
- Department of Polymer Science & Engineering, Sungkyunkwan University Suwon, Suwon 16419, Korea; (M.H.L.); (J.W.C.)
- Correspondence: (D.J.C.); (J.Y.J.)
| | - Jong Hyuk Park
- Soft Hybrid Materials Research Center, Korea Institute of Science and Technology, Seoul 02792, Korea; (H.-H.C.); (J.H.P.)
| | - Jae Young Jho
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (I.S.J.); (S.L.)
- Correspondence: (D.J.C.); (J.Y.J.)
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13
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Synthesis of Mesoporous Silica Coated Gold Nanorods Loaded with Methylene Blue and Its Potentials in Antibacterial Applications. NANOMATERIALS 2021; 11:nano11051338. [PMID: 34069626 PMCID: PMC8160648 DOI: 10.3390/nano11051338] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/10/2021] [Accepted: 05/16/2021] [Indexed: 02/07/2023]
Abstract
In this work, the successful preparation and characterization of gold nanorods (AuNRs) coated with a mesoporous silica shell (AuNRs@Simes) was achieved. Conjugation with methylene blue (MB) as a model drug using ultrasound-stimulated loading has been explored for further application in light-mediated antibacterial studies. Lyophilization of this conjugated nanosystem was analyzed using trehalose (TRH) as a cryogenic protector. The obtained stable dry formulation shows potent antimicrobial activity against Gram-negative (Escherichia coli) and Gram-positive (Staphylococcus aureus) bacteria after a simple post-treatment irradiation method with a red laser during a short time period.
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14
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Zainon S, Azmi W. Recent Progress on Stability and Thermo-Physical Properties of Mono and Hybrid towards Green Nanofluids. MICROMACHINES 2021; 12:mi12020176. [PMID: 33670250 PMCID: PMC7918202 DOI: 10.3390/mi12020176] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Revised: 01/31/2021] [Accepted: 02/08/2021] [Indexed: 11/16/2022]
Abstract
Many studies have shown the remarkable enhancement of thermo-physical properties with the addition of a small quantity of nanoparticles into conventional fluids. However, the long-term stability of the nanofluids, which plays a significant role in enhancing these properties, is hard to achieve, thus limiting the performance of the heat transfer fluids in practical applications. The present paper attempts to highlight various approaches used by researchers in improving and evaluating the stability of thermal fluids and thoroughly explores various factors that contribute to the enhancement of the thermo-physical properties of mono, hybrid, and green nanofluids. There are various methods to maintain the stability of nanofluids, but this paper particularly focuses on the sonication process, pH modification, and the use of surfactant. In addition, the common techniques to evaluate the stability of nanofluids are undertaken by using visual observation, TEM, FESEM, XRD, zeta potential analysis, and UV-Vis spectroscopy. Prior investigations revealed that the type of nanoparticle, particle volume concentration, size and shape of particles, temperature, and base fluids highly influence the thermo-physical properties of nanofluids. In conclusion, this paper summarized the findings and strategies to enhance the stability and factors affecting the thermal conductivity and dynamic viscosity of mono and hybrid of nanofluids towards green nanofluids.
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Affiliation(s)
- S.N.M. Zainon
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan 26300, Malaysia;
| | - W.H. Azmi
- Department of Mechanical Engineering, College of Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, Kuantan 26300, Malaysia;
- Centre for Research in Advanced Fluid and Processes, Lebuhraya Tun Razak, Gambang, Kuantan 26300, Malaysia
- Correspondence:
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The Impact of Nanofluids on Droplet/Spray Cooling of a Heated Surface: A Critical Review. ENERGIES 2020. [DOI: 10.3390/en14010080] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Cooling by impinging droplets has been the subject of several studies for decades and still is, and, in the last few years, the potential heat transfer enhancement obtained thanks to nanofluids’ use has received increased interest. Indeed, the use of high thermal conductivity fluids, such as nanofluids’, is considered today as a possible way to strongly enhance this heat transfer process. This enhancement is related to several physical mechanisms. It is linked to the nanofluids’ rheology, their degree of stabilization, and how the presence of the nanoparticles impact the droplet/substrate dynamics. Although there are several articles on droplet impact dynamics and nanofluid heat transfer enhancement, there is a lack of review studies that couple these two topics. As such, this review aims to provide an analysis of the available literature dedicated to the dynamics between a single nanofluid droplet and a hot substrate, and the consequent enhancement or reduction of heat transfer. Finally, we also conduct a review of the available publications on nanofluids spray cooling. Although using nanofluids in spray cooling may seem a promising option, the few works present in the literature are not yet conclusive, and the mechanism of enhancement needs to be clarified.
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Influence of NOM on the Stability of Zinc Oxide Nanoparticles in Ecotoxicity Tests. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10186431] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nanomaterials are known to aggregate in the presence of ions. Similarly, the aggregation of zinc oxide nanoparticles (ZnO NPs) exposed to various ions such as sodium chloride and calcium chloride in water systems increases with the ionic strength. Therefore, for accurate toxicity studies, it is necessary to conduct a test using natural organic matters (NOMs) as additional dispersants that strengthen stability with increased repulsive forces. The three types of ecotoxicity tests based on the dispersion stability test using NOM showed that the toxicities of the three test samples decreased in the presence of NOM. To determine how NOM improved dispersion and reduced toxicities, we analyzed the ionization degree of ZnO NPs with and without NOM and found that the solubility was below 2 mg/L with a negligible change over time, implying that the ionization effect was low. The absolute value of the surface charge of particles increased in the presence of NOM, resulting in increased repulsive electrostatic forces and steric hindrance, causing less aggregation and more dispersion. Additionally, although the NOM used in the test is considered an effective dispersant that does not have a toxicological effect on aquatic organisms, the presence of NOM resulted in reduced toxicities and should be further investigated to establish it as a standard test method.
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17
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Essien ER, Atasie VN, Oyebanji TO, Nwude DO. Biomimetic synthesis of magnesium oxide nanoparticles using Chromolaena odorata (L.) leaf extract. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01056-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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18
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Micronuclei Detection by Flow Cytometry as a High-Throughput Approach for the Genotoxicity Testing of Nanomaterials. NANOMATERIALS 2019; 9:nano9121677. [PMID: 31771274 PMCID: PMC6956333 DOI: 10.3390/nano9121677] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/19/2019] [Accepted: 11/22/2019] [Indexed: 12/20/2022]
Abstract
Thousands of nanomaterials (NMs)-containing products are currently under development or incorporated in the consumer market, despite our very limited understanding of their genotoxic potential. Taking into account that the toxicity and genotoxicity of NMs strongly depend on their physicochemical characteristics, many variables must be considered in the safety evaluation of each given NM. In this scenario, the challenge is to establish high-throughput methodologies able to generate rapid and robust genotoxicity data that can be used to critically assess and/or predict the biological effects associated with those NMs being under development or already present in the market. In this study, we have evaluated the advantages of using a flow cytometry-based approach testing micronucleus (MNs) induction (FCMN assay). In the frame of the EU NANoREG project, we have tested six different NMs—namely NM100 and NM101 (TiO2NPs), NM110 (ZnONPs), NM212 (CeO2NPs), NM300K (AgNPs) and NM401 (multi-walled carbon nanotubes (MWCNTs)). The obtained results confirm the ability of AgNPs and MWCNTs to induce MN in the human bronchial epithelial BEAS-2B cell line, whereas the other tested NMs retrieved non-significant increases in the MN frequency. Based on the alignment of the results with the data reported in the literature and the performance of the FCMN assay, we strongly recommend this assay as a reference method to systematically evaluate the potential genotoxicity of NMs.
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Gouin T, Becker RA, Collot A, Davis JW, Howard B, Inawaka K, Lampi M, Ramon BS, Shi J, Hopp PW. Toward the Development and Application of an Environmental Risk Assessment Framework for Microplastic. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2087-2100. [PMID: 31233238 PMCID: PMC6852392 DOI: 10.1002/etc.4529] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 05/13/2019] [Accepted: 06/19/2019] [Indexed: 05/20/2023]
Abstract
Emissions of plastic waste to the environment and the subsequent degradation into microplastic particles that have the potential to interact with biological organisms represent a concern for global society. Current understanding of the potential impacts on aquatic and terrestrial population stability and ecosystem structure and function associated with emissions of microplastic particles is limited and insufficient to fully assess environmental risks. Multistakeholder discussions can provide an important element in helping to identify and prioritize key knowledge gaps in assessing potential risks. In the present review, we summarize multistakeholder discussions from a 1-d International Council of Chemical Associations-sponsored symposium, which involved 39 scientists from 8 countries with representatives from academia, industry, and government. Participants were asked to consider the following: discuss the scientific merits and limitations of applying a proposed conceptual environmental risk assessment (ERA) framework for microplastic particles and identify and prioritize major research needs in applying ERA tools for microplastic particles. Multistakeholder consensus was obtained with respect to the interpretation of the current state of the science related to effects and exposure to microplastic particles, which implies that it is unlikely that the presence of microplastic in the environment currently represents a risk. However, the quality and quantity of existing data require substantial improvement before conclusions regarding the potential risks and impacts of microplastic particles can be fully assessed. Research that directly addresses the development and application of methods that strengthen the quality of data should thus be given the highest priority. Activities aimed at supporting the development of and access to standardized reference material were identified as a key research need. Environ Toxicol Chem 2019;38:2087-2100. © 2019 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals, Inc. on behalf of SETAC.
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Affiliation(s)
- Todd Gouin
- TG Environmental Research, SharnbrookUnited Kingdom
| | | | | | | | | | | | - Mark Lampi
- ExxonMobil Biomedical SciencesAnnandaleNew JerseyUSA
| | | | - Jay Shi
- Procter & Gamble, CincinnatiOhioUSA
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