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Jalili P, Krause BC, Lanceleur R, Burel A, Jungnickel H, Lampen A, Laux P, Luch A, Fessard V, Hogeveen K. Chronic effects of two rutile TiO 2 nanomaterials in human intestinal and hepatic cell lines. Part Fibre Toxicol 2022; 19:37. [PMID: 35578293 PMCID: PMC9112549 DOI: 10.1186/s12989-022-00470-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 04/05/2022] [Indexed: 01/05/2023] Open
Abstract
Background TiO2 nanomaterials (NMs) are present in a variety of food and personal hygiene products, and consumers are exposed daily to these NMs through oral exposition. While the bulk of ingested TiO2 NMs are eliminated rapidly in stool, a fraction is able to cross the intestinal epithelial barrier and enter systemic circulation from where NMs can be distributed to tissues, primarily liver and spleen. Daily exposure to TiO2 NMs, in combination with a slow rate of elimination from tissues, results in their accumulation within different tissues. Considerable evidence suggests that following oral exposure to TiO2 NMs, the presence of NMs in tissues is associated with a number of adverse effects, both in intestine and liver. Although numerous studies have been performed in vitro investigating the acute effects of TiO2 NMs in intestinal and hepatic cell models, considerably less is known about the effect of repeated exposure on these models. In this study, we investigated the cytotoxic effects of repeated exposure of relevant models of intestine and liver to two TiO2 NMs differing in hydrophobicity for 24 h, 1 week and 2 weeks at concentrations ranging from 0.3 to 80 µg/cm2. To study the persistence of these two NMs in cells, we included a 1-week recovery period following 24 h and 1-week treatments. Cellular uptake by TEM and ToF–SIMS analyses, as well as the viability and pro-inflammatory response were evaluated. Changes in the membrane composition in Caco-2 and HepaRG cells treated with TiO2 NMs for up to 2 weeks were also studied.
Results Despite the uptake of NM-103 and NM-104 in cells, no significant cytotoxic effects were observed in either Caco-2 or HepaRG cells treated for up to 2 weeks at NM concentrations up to 80 µg/cm2. In addition, no significant effects on IL-8 secretion were observed. However, significant changes in membrane composition were observed in both cell lines. Interestingly, while most of these phospholipid modifications were reversed following a 1-week recovery, others were not affected by the recovery period. Conclusion These findings indicate that although no clear effects on cytotoxicity were observed following repeated exposure of differentiated Caco-2 and HepaRG cells to TiO2 NMs, subtle effects on membrane composition could induce potential adverse effects in the long-term. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00470-1.
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Affiliation(s)
- Pégah Jalili
- Toxicology of Contaminants Unit, Fougères Laboratory, ANSES, French Agency for Food, Environmental and Occupational Health & Safety, 10 B rue Claude Bourgelat - Javené, 35306, Fougères, France
| | | | - Rachelle Lanceleur
- Toxicology of Contaminants Unit, Fougères Laboratory, ANSES, French Agency for Food, Environmental and Occupational Health & Safety, 10 B rue Claude Bourgelat - Javené, 35306, Fougères, France
| | - Agnès Burel
- MRic Cell Imaging Platform, BIOSIT, University of Rennes 1, 2 avenue du Pr Léon Bernard - CS 34317, 35043, Rennes, France
| | - Harald Jungnickel
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Alfonso Lampen
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Peter Laux
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Andreas Luch
- German Federal Institute for Risk Assessment, Max-Dohrn-Straße 8-10, 10589, Berlin, Germany
| | - Valérie Fessard
- Toxicology of Contaminants Unit, Fougères Laboratory, ANSES, French Agency for Food, Environmental and Occupational Health & Safety, 10 B rue Claude Bourgelat - Javené, 35306, Fougères, France
| | - Kevin Hogeveen
- Toxicology of Contaminants Unit, Fougères Laboratory, ANSES, French Agency for Food, Environmental and Occupational Health & Safety, 10 B rue Claude Bourgelat - Javené, 35306, Fougères, France.
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Parra-Ortiz E, Malmsten M. Photocatalytic nanoparticles - From membrane interactions to antimicrobial and antiviral effects. Adv Colloid Interface Sci 2022; 299:102526. [PMID: 34610862 DOI: 10.1016/j.cis.2021.102526] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 09/24/2021] [Accepted: 09/24/2021] [Indexed: 12/23/2022]
Abstract
As a result of increasing resistance among pathogens against antibiotics and anti-viral therapeutics, nanomaterials are attracting current interest as antimicrobial agents. Such materials offer triggered functionalities to combat challenging infections, based on either direct membrane action, effects of released ions, thermal shock induced by either light or magnetic fields, or oxidative photocatalysis. In the present overview, we focus on photocatalytic antimicrobial effects, in which light exposure triggers generation of reactive oxygen species. These, in turn, cause oxidative damage to key components in bacteria and viruses, including lipid membranes, lipopolysaccharides, proteins, and DNA/RNA. While an increasing body of studies demonstrate that potent antimicrobial effects can be achieved by photocatalytic nanomaterials, understanding of the mechanistic foundation underlying such effects is still in its infancy. Addressing this, we here provide an overview of the current understanding of the interaction of photocatalytic nanomaterials with pathogen membranes and membrane components, and how this translates into antibacterial and antiviral effects.
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Affiliation(s)
- Elisa Parra-Ortiz
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - Martin Malmsten
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark; Physical Chemistry 1, University of Lund, S-221 00 Lund, Sweden.
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Interaction of lignin dimers with model cell membranes: A quartz crystal microbalance and molecular dynamics simulation study. Biointerphases 2021; 16:041003. [PMID: 34266242 DOI: 10.1116/6.0001029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
A study of the interaction between cell membranes and small molecules derived from lignin, a protective phenolic biopolymer found in vascular plants, is crucial for identifying their potential as pharmacological and toxicological agents. In this work, the interactions of model cell membranes [supported 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) lipid bilayers] are compared for three βO4 dimers of coniferyl alcohol (G lignin monomer): guaiacylglycerol guaiacol ester with a hydroxypropenyl (HOC3H4-) tail (G-βO4'-G), a truncated GG dimer without HOC3H4- (G-βO4'-truncG), and a benzylated GG dimer (benzG-βO4'-G). The uptake of the lignin dimers (per mass of lipid) and the energy dissipation (a measure of bilayer disorder) are higher for benzG-βO4'-G and G-βO4'-truncG than those for G-βO4'-G in the gel-phase DPPC bilayer, as measured using quartz crystal microbalance with dissipation (QCM-D). A similar uptake of G-βO4'-truncG is observed for a fluid-phase bilayer of 1,2-dioleoyl-sn-glycero-3-phosphocholine, suggesting that the effect of the bilayer phase on dimer uptake is minimal. The effects of increasing lignin dimer concentration are examined through an analysis of density profiles, potential of mean force curves, lipid order parameters, and bilayer area compressibilities (disorder) in the lipid bilayers obtained from molecular dynamics simulations. Dimer distributions and potentials of mean force indicate that the penetration into bilayers is higher for benzG-βO4'-G and G-βO4'-truncG than that for G-βO4'-G, consistent with the QCM-D results. Increased lipid tail disorder due to dimer penetration leads to a thinning and softening of the bilayers. Minor differences in the structure of lignin derivatives (such as truncating the hydroxypropenyl tail) have significant impacts on their ability to penetrate lipid bilayers.
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Malekkhaiat Häffner S, Parra-Ortiz E, Skoda MWA, Saerbeck T, Browning KL, Malmsten M. Composition effects on photooxidative membrane destabilization by TiO 2 nanoparticles. J Colloid Interface Sci 2021; 584:19-33. [PMID: 33039680 DOI: 10.1016/j.jcis.2020.09.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Revised: 09/11/2020] [Accepted: 09/12/2020] [Indexed: 11/30/2022]
Abstract
Membrane interactions and photooxidative membrane destabilization of titanium dioxide (TiO2) nanoparticles were investigated, focusing on the effects of membrane composition, notably phospholipid headgroup charge and presence of cholesterol. For this, we employed a battery of state-of-the-art methods for studies of bilayers formed by zwitterionic palmitoyloleoylphosphatidylcholine (POPC) containing also polyunsaturated palmitoylarachidonoylphosphocholine (PAPC), as well as its mixtures with anionic palmitoyloleoylphosphatidylglycerol (POPG) and cholesterol. It was found that the TiO2 nanoparticles display close to zero charge at pH 7.4, resulting in aggregation. At pH 3.4, in contrast, the 6 nm TiO2 nanoparticles are well dispersed due to a strongly positive ζ-potential. Mirroring this pH dependence, TiO2 nanoparticles were observed to bind to negatively charged lipid bilayers at pH 3.4, but much less so at pH 7.4. While nanoparticle binding has some destabilizing effect alone, illumination with ultraviolet (UV) light accentuates membrane destabilization, a result of oxidative stress caused by generated reactive oxygen species (ROS). Neutron reflectivity (NR), quartz crystal microbalance (QCM), and small-angle X-ray scattering (SAXS) results all demonstrate that membrane composition strongly influences membrane interactions and photooxidative destabilization of lipid bilayers. In particular, the presence of anionic POPG makes the bilayers more sensitive to oxidative destabilization, whereas a stabilizing effect was observed in the presence of cholesterol. Also, structural aspects of peroxidation were found to depend strongly on membrane composition, notably the presence of anionic phospholipids. The results show that membrane interactions and UV-induced ROS generation act in concert and need to be considered together to understand effects of lipid membrane composition on UV-triggered oxidative destabilization by TiO2 nanoparticles, e.g., in the context of oxidative damage of bacteria and cells.
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Affiliation(s)
| | - E Parra-Ortiz
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M W A Skoda
- ISIS Pulsed Neutron and Muon Source, Rutherford Appleton Laboratory, Harwell, Oxfordshire OX11 OQX, UK
| | - T Saerbeck
- Institut Laue-Langevin, CS 20156, 38042 Grenoble Cedex 9, France
| | - K L Browning
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark
| | - M Malmsten
- Department of Pharmacy, University of Copenhagen, DK-2100 Copenhagen, Denmark; Department of Physical Chemistry 1, University of Lund, SE-22100 Lund, Sweden
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Ha Y, Kwon JH. Effects of lipid membrane composition on the distribution of biocidal guanidine oligomer with solid supported lipid membranes. RSC Adv 2020; 10:22343-22351. [PMID: 35514581 PMCID: PMC9054620 DOI: 10.1039/d0ra03108a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 06/04/2020] [Indexed: 11/21/2022] Open
Abstract
Polyhexamethylene guanidine (PHMG) is a cationic antimicrobial oligomer that has been used prevalently over the past few decades. However, due to the lack of inhalation toxicity assessment of PHMG, it has caused severe health damage, including fatal lung fibrosis, after being used as one of the major active ingredients of humidifier disinfectants in Korea. Because the first step of the entry of PHMG into airway is its association with cell membranes, the distribution of PHMG between lipid membranes and water is very important to know the depositional flux in the respiratory systems and related toxic mechanisms. We developed a quantitative method to determine the distribution constant (Klipw) of PHMG between solid supported lipid membranes and water and evaluated the effects of lipid membrane compositions on the Klipw of PHMG. PHMG accumulated into anionic lipid membranes rapidly compared to into cationic or zwitterionic lipid membranes, suggesting fast adsorption of PHMG onto anionic lipid head groups. Klipw values with anionic/zwitterionic lipid mixtures were higher than Klipw values with anionic lipids only, potentially due to the later phase separation after preferential interaction between PHMG and anionic lipids in lipid mixtures. In addition, Klipw values increased with increasing single acyl chain lipid content in unsaturated lipids and decreasing cholesterol content. These results imply that changes in lipid spontaneous curvature and lipid bilayer packing density also affect the membrane distribution of PHMG. This study experimentally determined the Klipw of PHMG and assessed the effects of lipid membrane composition on Klipw values.![]()
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Affiliation(s)
- Yeonjeong Ha
- Division of Environmental Science and Ecological Engineering, Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea +82 2 3290 3041
| | - Jung-Hwan Kwon
- Division of Environmental Science and Ecological Engineering, Korea University 145 Anam-ro Seongbuk-gu Seoul 02841 Republic of Korea +82 2 3290 3041
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6
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Zhu B, Wei X, Song J, Zhang Q, Jiang W. Crystalline phase and surface coating of Al 2O 3 nanoparticles and their influence on the integrity and fluidity of model cell membranes. CHEMOSPHERE 2020; 247:125876. [PMID: 31978652 DOI: 10.1016/j.chemosphere.2020.125876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 12/30/2019] [Accepted: 01/07/2020] [Indexed: 05/28/2023]
Abstract
Aluminium oxide nanoparticles (Al2O3 NPs) potentially cause health hazards after their release into the environment. The crystalline phase of Al2O3 NPs determines their surface structure and the number of functional groups. The adsorption of natural organic matter (NOM) or biomolecules on the surface Al2O3 NPs also alters their surface properties and subsequent interactions with organisms. In this study, the roles of the Al2O3 crystalline phase and the surface coating of the nanoparticles on the membrane integrity and fluidity were investigated. Giant and small unilamellar vesicles (GUVs and SUVs) were prepared as model cell membranes to detect membrane disruption after exposure to Al2O3 NPs. Due to amorphous structure and high surface activity of γ-Al2O3 NPs, they had a stronger affinity with the membrane and caused more serious membrane rupture than that of α-Al2O3 NPs. The deposition of Al2O3 NPs on the membrane and the induced membrane disruption were monitored by a quartz crystal microbalance with dissipation (QCM-D) method. HA-coated Al2O3 NPs disrupted the SUV layer on the QCM-D sensor, while BSA-coated Al2O3 NPs only adhered to the membrane and induced unremarkable vesicle disruption. In addition, untreated γ-Al2O3 NPs induced remarkable gelation of a negatively charged membrane, but other types of Al2O3 NPs caused negligible membrane phase changes. The outcomes of this study demonstrate that the crystalline phase of the Al2O3 NPs affects the integrity and fluidity of cell membranes. The protein coatings on the NPs weaken the NP-membrane interaction, while HA coatings increase the damage of the NP-induced interaction.
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Affiliation(s)
- Bao Zhu
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Xiaoran Wei
- School of Public Health, Qingdao University, Qingdao, 266021, China
| | - Jian Song
- Environment Research Institute, Shandong University, Qingdao, 266237, China
| | - Qiu Zhang
- School of Environmental Sciences and Engineering, Shandong University, Qingdao, 266237, China
| | - Wei Jiang
- Environment Research Institute, Shandong University, Qingdao, 266237, China.
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Moradipour M, Chase EK, Khan MA, Asare SO, Lynn BC, Rankin SE, Knutson BL. Interaction of lignin-derived dimer and eugenol-functionalized silica nanoparticles with supported lipid bilayers. Colloids Surf B Biointerfaces 2020; 191:111028. [PMID: 32305621 DOI: 10.1016/j.colsurfb.2020.111028] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 04/02/2020] [Accepted: 04/06/2020] [Indexed: 01/21/2023]
Abstract
The potential to impart surfaces with specific lignin-like properties (i.e. resistance to microbes) remains relatively unexplored due to the lack of well-defined lignin-derived small molecules and corresponding surface functionalization strategies. Here, allyl-modified guaiacyl β-O-4 eugenol (G-eug) lignin-derived dimer is synthesized and attached to mesoporous silica nanoparticles (MSNPs) via click chemistry. The ability of G-eug lignin-dimer functionalized particles to interact with and disrupt synthetic lipid bilayers is compared to that of eugenol, a known natural antimicrobial. Spherical MSNPs (∼150 nm diameter with 4.5 nm pores) were synthesized using surfactant templating. Post-synthesis thiol (SH) attachment was performed using (3-mercaptopropyl) trimethoxysilane and quantified by Ellman's test. The resultant SH-MSNPs were conjugated with the G-eug dimers or eugenol by a thiol-ene reaction under ultraviolet light in the presence of a photo initiator. From thermogravimetric analysis (TGA), attachment densities of approximately 0.22 mmol eugenol/g particle and 0.13 mmol G-eug dimer/g particle were achieved. The interaction of the functionalized MSNPs with a phospholipid bilayers of 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (representing model cell membranes) supported on gold surface was measured using Quartz Crystal Microbalance with Dissipation monitoring (QCM-D). Eugenol-grafted MSNPs in PBS (up to 1 mg/mL) associated with the bilayer and increased the mass adsorbed on the QCM-D sensor. In contrast, MSNPs functionalized with G-eug dimer show qualitatively different behavior, with more uptake and evidence of bilayer disruption at and above a particle concentration of 0.5 mg/mL. These results suggest that bio-inspired materials with conjugated lignin-derived small molecules can serve as a platform for novel antimicrobial coatings and therapeutic carriers.
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Affiliation(s)
- Mahsa Moradipour
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky, United States
| | - Emily K Chase
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky, United States
| | - M Arif Khan
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky, United States
| | - Shardrack O Asare
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, United States
| | - Bert C Lynn
- Department of Chemistry, University of Kentucky, Lexington, Kentucky, United States
| | - Stephen E Rankin
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky, United States.
| | - Barbara L Knutson
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky, United States.
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Byrne CE, Astete CE, Vaithiyanathan M, Melvin AT, Moradipour M, Rankin SE, Knutson BL, Sabliov CM, Martin EC. Lignin-graft-PLGA drug-delivery system improves efficacy of MEK1/2 inhibitors in triple-negative breast cancer cell line. Nanomedicine (Lond) 2020; 15:981-1000. [DOI: 10.2217/nnm-2020-0010] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Aim: Few targeted therapies are available for triple-negative breast cancer (TNBC) patients. Here, we propose a novel alkaline-lignin-conjugated-poly(lactic- co-glycolic acid) (L-PLGA) nanoparticle drug delivery system to improve the efficacy of targeted therapies. Materials & methods: L-PLGA nanoparticles (NPs) loaded with the MEK1/2 inhibitor GDC-0623 were characterized, tested in vitro on MDA-MB-231 TNBC cell line and compared with loaded PLGA NPs. Results: Loaded L-PLGA NPs were less than half the size of PLGA NPs, had slower drug release and improved the efficacy of GDC-0623 when tested in vitro. We demonstrated that GDC-0623 reversed epithelial-to-mesenchymal transition in TNBC. Conclusion: Our findings indicate that L-PLGA NPs are superior to PLGA NPs in delivering GDC-0623 to cancer cells for improved efficacy in vitro.
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Affiliation(s)
- C Ethan Byrne
- Department of Biological & Agricultural Engineering, Louisiana State University, LA 70803, USA
| | - Carlos E Astete
- Department of Biological & Agricultural Engineering, Louisiana State University, LA 70803, USA
| | | | - Adam T Melvin
- Cain Department of Chemical Engineering, Louisiana State University, LA 70803, USA
| | - Mahsa Moradipour
- Department of Chemical & Materials Engineering, University of Kentucky, KY 40506, USA
| | - Stephen E Rankin
- Department of Chemical & Materials Engineering, University of Kentucky, KY 40506, USA
| | - Barbara L Knutson
- Department of Chemical & Materials Engineering, University of Kentucky, KY 40506, USA
| | - Cristina M Sabliov
- Department of Biological & Agricultural Engineering, Louisiana State University, LA 70803, USA
| | - Elizabeth C Martin
- Department of Biological & Agricultural Engineering, Louisiana State University, LA 70803, USA
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Salis B, Pugliese G, Pellegrino T, Diaspro A, Dante S. Polymer Coating and Lipid Phases Regulate Semiconductor Nanorods' Interaction with Neuronal Membranes: A Modeling Approach. ACS Chem Neurosci 2019; 10:618-627. [PMID: 30339349 DOI: 10.1021/acschemneuro.8b00466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The interplay between nanoparticles (NPs) and cell membranes is extremely important with regard to using NPs in biology applications. With the aim of unraveling the dominating factors on the molecular scale, we have studied the interaction between polymer-coated semiconductor nanorods (NRs) made of cadmium selenium/cadmium sulfur and model lipid membranes. The zeta potential (ζ) of the NRs was tuned from having a negative value (-24 mV) to having a positive one (+11 mV) by changing the amine content in the polymer coating. Supported lipid bilayers (SLBs) and lipid monolayers (LMs) were used as model membranes. Lipid mixtures containing anionic or cationic lipids were employed in order to change the membrane ζ from -77 to +49 mV; lipids with saturated hydrophobic chains were used to create phase-separated gel domains. NR adsorption to the SLBs was monitored by quartz crystal microbalance with dissipation monitoring; interactions with LMs with the same lipid composition were measured by surface pressure-area isotherms. The results showed that the NRs only interact with the model membrane if the mutual Δζ is higher than 70 mV; at the air-water interface, positively charged NRs remove lipids from the anionic lipid mixtures, and the negative ones penetrate the space between the polar heads in the cationic mixtures. However, the presence of gel domains in the membrane inhibits this interaction. The results of the Derjaguin-Landau-Verwey-Overbeek model frame indicate that the interaction occurs not only due to electrostatic and van der Waals forces, but also due to steric and/or hydration forces.
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Affiliation(s)
- Barbara Salis
- Dipartimento di Informatica, Bioingegneria, Robotica e Ingegneria dei Sistemi, Università di Genova, Genova 16145, Italy
- Nanoscopy&NIC@IIT, Istituto Italiano di Tecnologia, Genova 16163, Italy
| | - Giammarino Pugliese
- Nanomaterials for Biomedical Applications, Istituto Italiano di Tecnologia, Genova 16146, Italy
| | - Teresa Pellegrino
- Nanomaterials for Biomedical Applications, Istituto Italiano di Tecnologia, Genova 16146, Italy
| | - Alberto Diaspro
- Nanoscopy&NIC@IIT, Istituto Italiano di Tecnologia, Genova 16163, Italy
- Dipartimento di Fisica, Università di Genova, Genova 16163, Italy
| | - Silvia Dante
- Nanoscopy&NIC@IIT, Istituto Italiano di Tecnologia, Genova 16163, Italy
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Mapar M, Jõemetsa S, Pace H, Zhdanov VP, Agnarsson B, Höök F. Spatiotemporal Kinetics of Supported Lipid Bilayer Formation on Glass via Vesicle Adsorption and Rupture. J Phys Chem Lett 2018; 9:5143-5149. [PMID: 30137991 DOI: 10.1021/acs.jpclett.8b02092] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Supported lipid bilayers (SLBs) represent one of the most popular mimics of the cell membrane. Herein, we have used total internal reflection fluorescence microscopy for in-depth characterization of the vesicle-mediated SLB formation mechanism on a common silica-rich substrate, borosilicate glass. Fluorescently labeling a subset of vesicles allowed us to monitor the adsorption of individual labeled vesicles, resolve the onset of SLB formation from small seeds of SLB patches, and track their growth via SLB-edge-induced autocatalytic rupture of adsorbed vesicles. This made it possible to perform the first quantitative measurement of the SLB front velocity, which is shown to increase up to 1 order of magnitude with time. This effect can be classified as dramatic because in many other physical, chemical, or biological kinetic processes the front velocity is either constant or decreasing with time. The observation was successfully described with a theoretical model and Monte Carlo simulations implying rapid local diffusion of lipids upon vesicle rupture.
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Affiliation(s)
- Mokhtar Mapar
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
| | - Silver Jõemetsa
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
| | - Hudson Pace
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
| | - Vladimir P Zhdanov
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
- Boreskov Institute of Catalysis , Russian Academy of Sciences , Novosibirsk 630090 , Russia
| | - Björn Agnarsson
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
| | - Fredrik Höök
- Division of Biological Physics, Department of Physics , Chalmers University of Technology , 41296 Göteborg , Sweden
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11
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Zeng Y, Wang Q, Zhang Q, Jiang W. Quantification of C60-induced membrane disruption using a quartz crystal microbalance. RSC Adv 2018; 8:9841-9849. [PMID: 35540840 PMCID: PMC9078712 DOI: 10.1039/c7ra13690k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 03/03/2018] [Indexed: 11/28/2022] Open
Abstract
Direct contact between fullerene C60 nanoparticles (NPs) and cell membranes is one of mechanisms for its cytotoxicity. In this study, the influence of C60 NPs on lipid membranes was investigated. Giant unilamellar vesicles (GUVs) were used as model cell membranes to observe the membrane disruption after C60 exposure. C60 NPs disrupted the positively charged GUVs but not the negatively charged vesicles, confirming the role of electrostatic forces. To quantify the C60 adhesion on membrane and the induced membrane disruption, a supported lipid bilayer (SLB) and a layer of small unilamellar vesicles (SUVs) were used to cover the sensor of a quartz crystal microbalance (QCM). The mass change on the SLB (ΔmSLB) was caused by the C60 adhesion on the membrane, while the mass change on the SUV layer (ΔmSUV) was the combined result of C60 adhesion (mass increase) and SUV disruption (mass loss). The surface area of SLB (ASLB) was much smaller than the surface area of SUV (ASUV), but ΔmSLB was larger than ΔmSUV after C60 deposition, indicating that C60 NPs caused remarkable membrane disruption. Therefore a new method was built to quantify the degree of NP-induced membrane disruption using the values of ΔmSUV/ΔmSLB and ASUV/ASLB. In this way, C60 can be compared with other types of NPs to know which one causes more serious membrane disruption. In addition, C60 NPs caused negligible change in the membrane phase, indicating that membrane gelation was not the mechanism of cytotoxicity for C60 NPs. This study provides important information to predict the environmental hazard presented by fullerene NPs and to evaluate the degree of membrane damage caused by different NPs. Fullerene C60 NPs adhere on lipid membrane due to electrostatic force and cause membrane disruption.![]()
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Affiliation(s)
- Yuxuan Zeng
- Environment Research Institute
- Shandong University
- Jinan
- China
| | - Qi Wang
- Environment Research Institute
- Shandong University
- Jinan
- China
| | - Qiu Zhang
- School of Chemistry and Chemical Engineering
- Shandong University
- Jinan
- China
| | - Wei Jiang
- Environment Research Institute
- Shandong University
- Jinan
- China
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12
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Ferhan AR, Ma GJ, Jackman JA, Sut TN, Park JH, Cho NJ. Probing the Interaction of Dielectric Nanoparticles with Supported Lipid Membrane Coatings on Nanoplasmonic Arrays. SENSORS (BASEL, SWITZERLAND) 2017; 17:E1484. [PMID: 28644423 PMCID: PMC5539686 DOI: 10.3390/s17071484] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 06/20/2017] [Accepted: 06/20/2017] [Indexed: 12/16/2022]
Abstract
The integration of supported lipid membranes with surface-based nanoplasmonic arrays provides a powerful sensing approach to investigate biointerfacial phenomena at membrane interfaces. While a growing number of lipid vesicles, protein, and nucleic acid systems have been explored with nanoplasmonic sensors, there has been only very limited investigation of the interactions between solution-phase nanomaterials and supported lipid membranes. Herein, we established a surface-based localized surface plasmon resonance (LSPR) sensing platform for probing the interaction of dielectric nanoparticles with supported lipid bilayer (SLB)-coated, plasmonic nanodisk arrays. A key emphasis was placed on controlling membrane functionality by tuning the membrane surface charge vis-à-vis lipid composition. The optical sensing properties of the bare and SLB-coated sensor surfaces were quantitatively compared, and provided an experimental approach to evaluate nanoparticle-membrane interactions across different SLB platforms. While the interaction of negatively-charged silica nanoparticles (SiNPs) with a zwitterionic SLB resulted in monotonic adsorption, a stronger interaction with a positively-charged SLB resulted in adsorption and lipid transfer from the SLB to the SiNP surface, in turn influencing the LSPR measurement responses based on the changing spatial proximity of transferred lipids relative to the sensor surface. Precoating SiNPs with bovine serum albumin (BSA) suppressed lipid transfer, resulting in monotonic adsorption onto both zwitterionic and positively-charged SLBs. Collectively, our findings contribute a quantitative understanding of how supported lipid membrane coatings influence the sensing performance of nanoplasmonic arrays, and demonstrate how the high surface sensitivity of nanoplasmonic sensors is well-suited for detecting the complex interactions between nanoparticles and lipid membranes.
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Affiliation(s)
- Abdul Rahim Ferhan
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
| | - Gamaliel Junren Ma
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
| | - Joshua A Jackman
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
| | - Tun Naw Sut
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
| | - Jae Hyeon Park
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
| | - Nam-Joon Cho
- School of Materials Science and Engineering and Centre for Biomimetic Sensor Science, Nanyang Technological University, 50 Nanyang Drive, Singapore 637553, Singapore.
- School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459, Singapore.
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Luchini A, Gerelli Y, Fragneto G, Nylander T, Pálsson GK, Appavou MS, Paduano L. Neutron Reflectometry reveals the interaction between functionalized SPIONs and the surface of lipid bilayers. Colloids Surf B Biointerfaces 2016; 151:76-87. [PMID: 27987458 DOI: 10.1016/j.colsurfb.2016.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 12/02/2016] [Accepted: 12/06/2016] [Indexed: 11/18/2022]
Abstract
The safe application of nanotechnology devices in biomedicine requires fundamental understanding on how they interact with and affect the different components of biological systems. In this respect, the cellular membrane, the cell envelope, certainly represents an important target or barrier for nanosystems. Here we report on the interaction between functionalized SuperParamagnetic Iron Oxide Nanoparticles (SPIONs), promising contrast agents for Magnetic Resonance Imaging (MRI), and lipid bilayers that mimic the plasma membrane. Neutron Reflectometry, supported by Quartz Crystal Microbalance with Dissipation monitoring (QCM-D) experiments, was used to characterize this interaction by varying both SPION coating and lipid bilayer composition. In particular, the interaction of two different SPIONs, functionalized with a cationic surfactant and a zwitterionic phospholipid, and lipid bilayers, containing different amount of cholesterol, were compared. The obtained results were further validated by Dynamic Light Scattering (DLS) measurements and Cryogenic Transmission Electron Microscopy (Cryo-TEM) images. None of the investigated functionalized SPIONs were found to disrupt the lipid membrane. However, in all case we observed the attachment of the functionalized SPIONs onto the surface of the bilayers, which was affected by the bilayer rigidity, i.e. the cholesterol concentration.
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Affiliation(s)
- Alessandra Luchini
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, via Cintia, 80126 Napoli, Italy; CSGI - Consorzio interuniversitario per lo sviluppo dei Sistemi a Grande Interfase, Italy; Institut Laue-Langevin, BP 156, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Yuri Gerelli
- Institut Laue-Langevin, BP 156, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Giovanna Fragneto
- Institut Laue-Langevin, BP 156, 71 Avenue des Martyrs, 38000 Grenoble, France
| | - Tommy Nylander
- Physical Chemistry 1, Lund University, P.O. Box 124, 221 00 Lund, Sweden
| | - Gunnar K Pálsson
- Institut Laue-Langevin, 71 Avenue des Martyrs, 38000 Grenoble, France; Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
| | - Marie-Sousai Appavou
- Jülich Centre for Neutron Science, Garching Forschungszentrum, Lichtenbergstrasse 1, D-85747 Garching bei München, Germany
| | - Luigi Paduano
- Dipartimento di Scienze Chimiche, Università degli Studi di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, via Cintia, 80126 Napoli, Italy; CSGI - Consorzio interuniversitario per lo sviluppo dei Sistemi a Grande Interfase, Italy.
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