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Mathew G, Lemma ED, Fontana D, Zhong C, Rainer A, Sekula-Neuner S, Aghassi-Hagmann J, Hirtz M, Berganza E. Site-Selective Biofunctionalization of 3D Microstructures Via Direct Ink Writing. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2404429. [PMID: 39291890 DOI: 10.1002/smll.202404429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 08/16/2024] [Indexed: 09/19/2024]
Abstract
Two-photon lithography has revolutionized multi-photon 3D laser printing, enabling precise fabrication of micro- and nanoscale structures. Despite many advancements, challenges still persist, particularly in biofunctionalization of 3D microstructures. This study introduces a novel approach combining two-photon lithography with scanning probe lithography for post-functionalization of 3D microstructures overcoming limitations in achieving spatially controlled biomolecule distribution. The method utilizes a diverse range of biomolecule inks, including phospholipids, and two different proteins, introducing high spatial resolution and distinct functionalization on separate areas of the same microstructure. The surfaces of 3D microstructures are treated using bovine serum albumin and/or 3-(Glycidyloxypropyl)trimethoxysilane (GPTMS) to enhance ink retention. The study further demonstrates different strategies to create binding sites for cells by integrating different biomolecules, showcasing the potential for customized 3D cell microenvironments. Specific cell adhesion onto functionalized 3D microscaffolds is demonstrated, which paves the way for diverse applications in tissue engineering, biointerfacing with electronic devices and biomimetic modeling.
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Affiliation(s)
- George Mathew
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
- Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Enrico Domenico Lemma
- Department of Engineering, Università Campus Bio-Medico of Rome, via Álvaro del Portillo 21, Rome, 00128, Italy
| | - Dalila Fontana
- Department of Engineering, Università Campus Bio-Medico of Rome, via Álvaro del Portillo 21, Rome, 00128, Italy
| | - Chunting Zhong
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
- Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Alberto Rainer
- Department of Engineering, Università Campus Bio-Medico of Rome, via Álvaro del Portillo 21, Rome, 00128, Italy
- Fondazione Policlinico Universitario Campus Bio-Medico di Roma, via Álvaro del Portillo 200, Rome, 00128, Italy
- Institute of Nanotechnology (NANOTEC), National Research Council, via Monteroni, Lecce, 73100, Italy
| | - Sylwia Sekula-Neuner
- n.able GmbH, Hermann-von-Helmholtz-Platz 1, 76341, Eggenstein-Leopoldshafen, Germany
| | - Jasmin Aghassi-Hagmann
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Michael Hirtz
- Institute of Nanotechnology (INT), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
- Karlsruhe Nano Micro Facility (KNMFi), Karlsruhe Institute of Technology (KIT), Kaiserstraße 12, 76131, Karlsruhe, Germany
| | - Eider Berganza
- Instituto de Ciencia de Materiales de Madrid (CSIC), c) Sor Juana Inés de la Cruz, 3, Madrid, 28049, Spain
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Read H, Benaglia S, Fumagalli L. Structure and thermodynamics of supported lipid membranes on hydrophobic van der Waals surfaces. SOFT MATTER 2024; 20:5724-5732. [PMID: 38979701 PMCID: PMC11268427 DOI: 10.1039/d4sm00365a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Accepted: 06/19/2024] [Indexed: 07/10/2024]
Abstract
Understanding the adsorption and physical characteristics of supported lipid membranes is crucial for their effective use as model cell membranes. Their morphological and thermodynamic properties at the nanoscale have traditionally been studied on hydrophilic substrates, such as mica and silicon oxide, which have proved to facilitate the reconstruction of biomembranes. However, in more recent years, with the advent of the van der Waals crystals technology, two-dimensional crystals such as graphene have been proposed as potential substrates in biosensing devices. Membranes formed on these crystals are expected to behave differently owing to their intrinsic hydrophobicity, however thus far knowledge of their morphological and thermodynamic properties is lacking. Here we present a comprehensive nanoscale analysis of the adsorption of phosphatidylcholine lipid monolayers on two of the most commonly used van der Waals crystals, graphite and hexagonal boron nitride. Both morphological and thermodynamic properties of the lipid membranes were investigated using temperature-controlled atomic force microscopy. Our experiments show that the lipids adsorb onto the crystals, forming monolayers with their orientation dependent upon their concentration. Furthermore, we found that the hydrophobicity of van der Waals crystals determines a strong increase in the transition temperature of the lipid monolayer compared to that observed on hydrophilic substrates. These results are important for understanding the properties of lipid membranes at solid surfaces and extending their use to novel drug delivery and biosensing devices made of van der Waals crystals.
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Affiliation(s)
- Harriet Read
- Department of Physics & Astronomy University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
| | - Simone Benaglia
- Department of Physics & Astronomy University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
| | - Laura Fumagalli
- Department of Physics & Astronomy University of Manchester, Manchester, M13 9PL, UK.
- National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
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3
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Lee JW, Lee B, Park CH, Heo JH, Lee TY, Lee D, Bae J, Sundharbaabu PR, Yeom WK, Chae S, Lim JH, Lee SW, Choi JS, Bae HB, Choi JY, Lee EH, Yoon DS, Yeom GY, Shin H, Lee JH. Monolithic DNApatite: An Elastic Apatite with Sub-Nanometer Scale Organo-Inorganic Structures. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406179. [PMID: 39003621 DOI: 10.1002/adma.202406179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 06/20/2024] [Indexed: 07/15/2024]
Abstract
Hydroxyapatite (HA) exhibits outstanding biocompatibility, bioactivity, osteoconductivity, and natural anti-inflammatory properties. Pure HA, ion-doped HA, and HA-polymer composites are investigated, but critical limitations such as brittleness remain; numerous efforts are being made to address them. Herein, the novel self-crystallization of a polymeric single-stranded deoxyribonucleic acid (ssDNA) without additional phosphate ions for synthesizing deoxyribonucleic apatite (DNApatite) is presented. The synthesized DNApatite, DNA1Ca2.2(PO4)1.3OH2.1, has a repetitive dual phase of inorganic HA crystals and amorphous organic ssDNA at the sub-nm scale, forming nanorods. Its mechanical properties, including toughness and elasticity, are significantly enhanced compared with those of HA nanorod, with a Young's modulus similar to that of natural bone.
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Affiliation(s)
- Jin Woong Lee
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Byoungsang Lee
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Cheol Hyun Park
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jun Hyuk Heo
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Research Center for Advanced Materials Technology, SKKU, Suwon, 16419, Republic of Korea
| | - Tae Yoon Lee
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Dongtak Lee
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Jina Bae
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | | | - Won Kyun Yeom
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Sudong Chae
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Jae-Hyuk Lim
- School of Mechanical Engineering, SKKU, Suwon, 16419, Republic of Korea
| | - Seok-Won Lee
- School of Mechanical Engineering, SKKU, Suwon, 16419, Republic of Korea
| | - Jin-Seok Choi
- Analysis Center for Research Advancement, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Hyung-Bin Bae
- Analysis Center for Research Advancement, Korea Advanced Institute of Science and Technology, Daejeon, 34141, Republic of Korea
| | - Jae-Young Choi
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Eun-Ho Lee
- School of Mechanical Engineering, SKKU, Suwon, 16419, Republic of Korea
| | - Dae Sung Yoon
- School of Biomedical Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Geun Young Yeom
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
| | - Hyunjung Shin
- Department of Energy Science, SKKU, Suwon, 16419, Republic of Korea
| | - Jung Heon Lee
- School of Advanced Materials Science & Engineering, Sungkyunkwan University (SKKU), Suwon, 16419, Republic of Korea
- Research Center for Advanced Materials Technology, SKKU, Suwon, 16419, Republic of Korea
- Department of MetaBioHealth, SKKU, Suwon, 16419, Republic of Korea
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Mandal P, Ghosh SK. Graphene-Based Nanomaterials and Their Interactions with Lipid Membranes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:18713-18729. [PMID: 38096427 DOI: 10.1021/acs.langmuir.3c02805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Graphene-based nanomaterials (GNMs) have captured increasing attention in the recent advancement of materials science and nanotechnology owing to their excellent physicochemical properties. Despite having unquestionable advances, the application of GNMs in biological and medical sciences is still limited due to the lack of knowledge and precise control over their interaction with the biological milieu. The cellular membrane is the first barrier with which GNMs interact before entering a cell. Therefore, understanding how they interact with cell membranes is important from the perspective of safe use in biological and biomedical fields. In this review, we systematically summarize the recent efforts in predicting the interactions between GNMs and model cellular membranes. This review provides insights into how GNMs interact with lipid membranes and self-assemble in and around them. Both the computational simulations and experimental observations are summarized. The interactions are classified depending on the physicochemical properties (structure, chemistry, and orientation) of GNMs and various model membranes. The thermodynamic parameters, structural details, and supramolecular forces are listed to understand the interactions which would help circumvent potential risks and provide guidance for safe use in the future. At the end of this review, future prospective and emerging challenges in this research field are discussed.
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Affiliation(s)
- Priya Mandal
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH 91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India
| | - Sajal K Ghosh
- Department of Physics, School of Natural Sciences, Shiv Nadar Institution of Eminence, NH 91, Tehsil Dadri, G. B. Nagar, Uttar Pradesh 201314, India
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Zheng X, Zhang C, Cao H, Zhou X, Liu Z, Wang J. Zinc Cations Uniquely Stabilize Cell Membrane for Cell Cryopreservation. NANO LETTERS 2023; 23:9920-9927. [PMID: 37847595 DOI: 10.1021/acs.nanolett.3c02866] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
We report, for the first time, merely using a small amount of (0.039% w/w) Zn(II) instead of very high concentration (25%-50% w/w) of conventional cryoprotective agents (CPAs), i.e., glycerol, during the cryopreservation of red blood cells (RBCs) can lead to a comparable post-thaw recovery rate of ∼95% while avoiding the tedious gradient washout process for the removal of CPA afterward. The result is remarkable, since Zn(II) does not have the ice-controlling ability reported to be critical for CPA. It benefits from its moderate interaction with lipid molecules, facilitating the formation of small and dynamic lipid clusters. Consequently, the membrane fluidity is maintained, and the cells are resilient to osmotic and mechanical stresses during cryopreservation. This study first reports the ion-specific effect on stabilizing the cell membrane; meanwhile, reversibly tuning the structure of biological samples against injuries during the cooling and rewarming provides a new strategy for cryopreservation.
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Affiliation(s)
- Xia Zheng
- Key Laboratory of Green Printing, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Chuanbiao Zhang
- College of Physics and Electronic Engineering, Heze University, Heze, Shandong 274015, P. R. China
| | - Huimei Cao
- Key Laboratory of Green Printing, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Xin Zhou
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou, Zhejiang 325001, P. R. China
| | - Zhang Liu
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Jianjun Wang
- School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, P. R. China
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
- Songshan Lake Materials Laboratory, Dongguan, Guangdong 523808, P. R. China
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Suryavanshi P, Kudtarkar Y, Chaudhari M, Bodas D. Fabricating a low-temperature synthesized graphene-cellulose acetate-sodium alginate scaffold for the generation of ovarian cancer spheriod and its drug assessment. NANOSCALE ADVANCES 2023; 5:5045-5053. [PMID: 37705775 PMCID: PMC10496900 DOI: 10.1039/d3na00420a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/01/2023] [Indexed: 09/15/2023]
Abstract
3D cell culture can mimic tumor pathophysiology, which reflects cellular morphology and heterogeneity, strongly influencing gene expression, cell behavior, and intracellular signaling. It supports cell-cell and cell-matrix interaction, cell attachment, and proliferation, resulting in rapid and reliable drug screening models. We have generated an ovarian cancer spheroid in interconnected porous scaffolds. The scaffold is fabricated using low-temperature synthesized graphene, cellulose acetate, and sodium alginate. Graphene nanosheets enhance cell proliferation and aggregation, which aids in the formation of cancer spheroids. The spheroids are assessed after day 7 and 14 for the generation of reactive oxygen species (ROS), expression of the hypoxia inducing factor (HIF-1⍺) and vascular endothelial growth factor (VEGF). Production of ROS was observed due to the aggregated tumor mass, and enhanced production of HIF-1⍺ and VEGF results from a lack of oxygen and nutrition. Furthermore, the efficacy of anticancer drug doxorubicin at varying concentrations is assessed on ovarian cancer spheroids by studying the expression of caspase-3/7 at day 7 and 14. The current findings imply that the graphene-cellulose-alginate (GCA) scaffold generates a reliable ovarian cancer spheroid model to test the efficacy of the anticancer drug.
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Affiliation(s)
- Pooja Suryavanshi
- Nanobioscience Group, Agharkar Research Institute G. G. Agarkar Road Pune 411 004 India
- 2. Savitribai Phule Pune University Ganeshkhind Road Pune 411 007 India
| | - Yohaan Kudtarkar
- Department of Mechanical Engineering, Vishwakarma Institute of Technology (VIT) Bibwewadi Pune 411 037 India
| | - Mangesh Chaudhari
- Department of Mechanical Engineering, Vishwakarma Institute of Technology (VIT) Bibwewadi Pune 411 037 India
| | - Dhananjay Bodas
- Nanobioscience Group, Agharkar Research Institute G. G. Agarkar Road Pune 411 004 India
- 2. Savitribai Phule Pune University Ganeshkhind Road Pune 411 007 India
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7
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Gurtovenko AA, Nazarychev VM, Glova AD, Larin SV, Lyulin SV. Mesoscale computer modeling of asphaltene aggregation in liquid paraffin. J Chem Phys 2023; 158:234902. [PMID: 37318174 DOI: 10.1063/5.0153741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 05/30/2023] [Indexed: 06/16/2023] Open
Abstract
Asphaltenes represent a novel class of carbon nanofillers that are of potential interest for many applications, including polymer nanocomposites, solar cells, and domestic heat storage devices. In this work, we developed a realistic coarse-grained Martini model that was refined against the thermodynamic data extracted from atomistic simulations. This allowed us to explore the aggregation behavior of thousands of asphaltene molecules in liquid paraffin on a microsecond time scale. Our computational findings show that native asphaltenes with aliphatic side groups form small clusters that are uniformly distributed in paraffin. The chemical modification of asphaltenes via cutting off their aliphatic periphery changes their aggregation behavior: modified asphaltenes form extended stacks whose size increases with asphaltene concentration. At a certain large concentration (44 mol. %), the stacks of modified asphaltenes partly overlap, leading to the formation of large, disordered super-aggregates. Importantly, the size of such super-aggregates increases with the simulation box due to phase separation in the paraffin-asphaltene system. The mobility of native asphaltenes is systematically lower than that of their modified counterparts since the aliphatic side groups mix with paraffin chains, slowing down the diffusion of native asphaltenes. We also show that diffusion coefficients of asphaltenes are not very sensitive to the system size: enlarging the simulation box results in some increase in diffusion coefficients, with the effect being less pronounced at high asphaltene concentrations. Overall, our findings provide valuable insight into the aggregation behavior of asphaltenes on spatial and time scales that are normally beyond the scales accessible for atomistic simulations.
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Affiliation(s)
- Andrey A Gurtovenko
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect V.O. 31, St. Petersburg 199004, Russia
| | - Victor M Nazarychev
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect V.O. 31, St. Petersburg 199004, Russia
| | - Artem D Glova
- Department of Physics and Astronomy, The University of Western Ontario, 1151 Richmond Street, London, Ontario N6A 3K7, Canada
| | - Sergey V Larin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect V.O. 31, St. Petersburg 199004, Russia
| | - Sergey V Lyulin
- Institute of Macromolecular Compounds, Russian Academy of Sciences, Bolshoi Prospect V.O. 31, St. Petersburg 199004, Russia
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Itoi H, Matsuura M, Tanabe Y, Kondo S, Usami T, Ohzawa Y. High utilization efficiencies of alkylbenzokynones hybridized inside the pores of activated carbon for electrochemical capacitor electrodes. RSC Adv 2023; 13:2587-2599. [PMID: 36741185 PMCID: PMC9844457 DOI: 10.1039/d2ra06634c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 01/04/2023] [Indexed: 01/19/2023] Open
Abstract
Benzoquinone derivatives (BQDs) are hybridized inside activated carbon (AC) pores via gas-phase adsorption to prepare electrochemical capacitor materials. In this study, 2 mmol of BQDs are hybridized with 1 g of AC. The hybridization of alkylbenzoquinones (ABQs) with AC enhances the volumetric capacitances of the hybrids from 117 to 201 F cm-3 at 0.05 A g-1 and the capacitances are retained up to 73% at 10 A g-1. Meanwhile, the volumetric capacitances are increased to 163 F cm-3 at 0.05 A g-1 by the hybridization of halobenzoquinones (HBQs) and the capacitance retentions at 0.05 A g-1 are ∼62%, which are higher than that of AC (46%). The results of electrochemical measurements suggest that HBQs exist as agglomerates while ABQs are finely dispersed inside the pores. The ABQs have good contact with the conductive carbon pore surface compared to the HBQs. Consequently, most of the ABQ molecules undergo reversible redox reactions (i.e., high utilization efficiencies), and a large contact area facilitates charge transfer at the large contact interface, thereby endowing the hybrids of ABQs with fast charging and discharging characteristics. HBQ molecules can be finely dispersed by liquid-phase adsorption, but the finely dispersed HBQ molecules are mobile inside the pores at room temperature and gradually form agglomerates. The difference in the existing form of BQDs is explained by the dominant interaction affecting the BQD molecules. ABQs have a strong interaction with the carbon pore surface while the intermolecular interaction is dominant for HBQs.
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Affiliation(s)
- Hiroyuki Itoi
- Department of Applied Chemistry, Aichi Institute of TechnologyYachigusa 1247, Yakusa-choToyota470-0392Japan
| | - Miku Matsuura
- Department of Applied Chemistry, Aichi Institute of TechnologyYachigusa 1247, Yakusa-choToyota470-0392Japan
| | - Yuichiro Tanabe
- Department of Applied Chemistry, Aichi Institute of TechnologyYachigusa 1247, Yakusa-choToyota470-0392Japan
| | - Shoya Kondo
- Graduate School of Chemical Sciences and Engineering, Hokkaido UniversityKita 13, Nishi 8, Kita-kuSapporo 060-8628Japan
| | - Takanori Usami
- Department of Applied Chemistry, Aichi Institute of TechnologyYachigusa 1247, Yakusa-choToyota470-0392Japan
| | - Yoshimi Ohzawa
- Department of Applied Chemistry, Aichi Institute of TechnologyYachigusa 1247, Yakusa-choToyota470-0392Japan
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Dronadula MT, Aluru NR. Phospholipid Monolayer/Graphene Interfaces: Curvature Effect on Lipid Morphology and Dynamics. J Phys Chem B 2022; 126:6261-6270. [PMID: 35951540 DOI: 10.1021/acs.jpcb.2c00896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Phospholipids are an important class of lipids that are widely used as model platforms for the study of biological processes and interactions. These lipids can form stable interfaces with solid substrates, such as graphene, and these interfaces have potential applications in biosensing and targeted drug delivery. In this paper, we perform molecular dynamics simulations of graphene-supported lipid monolayers to characterize the lipid properties of such interfaces. We observed substantial differences between the supported monolayer and free-standing bilayer in terms of the lipid properties, such as the tail order parameters, density profiles, diffusion rates, and so on. Furthermore, we studied these interfaces on sinusoidally deformed graphene substrates to understand the effect of curvature on the supported lipids. Here, we observed that the nature of the substrate curvature, that is, concave or convex, can locally affect the lipid/substrate adhesion strength and induce structural and dynamic changes in the adsorbed lipid monolayer. Together, these results help characterize the properties of lipid/graphene interfaces and provide insights into the substrate curvature effect on these interfaces, which can enable the tuning of lipid properties for various sensor devices and drug delivery applications.
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Affiliation(s)
- Mohan Teja Dronadula
- Oden Institute for Computational Engineering and Sciences, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
| | - N R Aluru
- Oden Institute for Computational Engineering and Sciences, Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas 78712, United States
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10
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Zhang P, Jiao F, Wu L, Kong Z, Hu W, Liang L, Zhang Y. Molecular Dynamics Simulation of Transport Mechanism of Graphene Quantum Dots Through Different Cell Membranes. MEMBRANES 2022; 12:membranes12080753. [PMID: 36005668 PMCID: PMC9414618 DOI: 10.3390/membranes12080753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022]
Abstract
Exploring the mechanisms underlying the permeation of graphene quantum dots (GQDs) through different cell membranes is key for the practical application of GQDs in medicine. Here, the permeation process of GQDs through different lipid membranes was evaluated using molecular dynamics (MD) simulations. Our results showed that GQDs can easily permeate into 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC) and 1,2-dioleoyl-sn-glycero-3-phosphoethanolamine (DOPE) lipid membranes with low phospholipid molecule densities but cannot permeate into 1-palmitoyl-2-oleoyl phosphatidylethanolamine (POPE) lipid membranes with high phospholipid densities. Free energy calculation showed that a high-energy barrier exists on the surface of the POPE lipid membrane, which prevents GQDs from entering the cell membrane interior. Further analysis of the POPE membrane structure showed that sparsely arranged phospholipid molecules of the low-density lipid membrane facilitated the entry of GQDs into the interior of the membrane, compared to compactly arranged molecules in the high-density lipid membrane. Our simulation study provides new insights into the transmembrane transport of GQDs.
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Affiliation(s)
- Pengzhen Zhang
- Center of Advanced Optoelectronic Materials and Devices, Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (P.Z.); (L.W.); (Y.Z.)
| | - Fangfang Jiao
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China;
| | - Lingxiao Wu
- Center of Advanced Optoelectronic Materials and Devices, Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (P.Z.); (L.W.); (Y.Z.)
| | - Zhe Kong
- Center of Advanced Optoelectronic Materials and Devices, Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (P.Z.); (L.W.); (Y.Z.)
- Correspondence: (Z.K.); (W.H.)
| | - Wei Hu
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Pharmaceutical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China;
- Correspondence: (Z.K.); (W.H.)
| | - Lijun Liang
- College of Automation, Hangzhou Dianzi University, Hangzhou 310018, China;
| | - Yongjun Zhang
- Center of Advanced Optoelectronic Materials and Devices, Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (P.Z.); (L.W.); (Y.Z.)
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11
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Marrink SJ, Monticelli L, Melo MN, Alessandri R, Tieleman DP, Souza PCT. Two decades of Martini: Better beads, broader scope. WIRES COMPUTATIONAL MOLECULAR SCIENCE 2022. [DOI: 10.1002/wcms.1620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Siewert J. Marrink
- Groningen Biomolecular Sciences and Biotechnology Institute & Zernike Institute for Advanced Materials University of Groningen Groningen The Netherlands
| | - Luca Monticelli
- Molecular Microbiology and Structural Biochemistry (MMSB ‐ UMR 5086) CNRS & University of Lyon Lyon France
| | - Manuel N. Melo
- Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa Oeiras Portugal
| | - Riccardo Alessandri
- Pritzker School of Molecular Engineering University of Chicago Chicago Illinois USA
| | - D. Peter Tieleman
- Centre for Molecular Simulation and Department of Biological Sciences University of Calgary Alberta Canada
| | - Paulo C. T. Souza
- Molecular Microbiology and Structural Biochemistry (MMSB ‐ UMR 5086) CNRS & University of Lyon Lyon France
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12
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Mollahosseini A, Abdelrasoul A. Novel Insights in Hemodialysis: Most Recent Theories on the Membrane Hemocompatibility Improvement. BIOMEDICAL ENGINEERING ADVANCES 2022. [DOI: 10.1016/j.bea.2022.100034] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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13
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Dixit N, Singh SP. Laser-Induced Graphene (LIG) as a Smart and Sustainable Material to Restrain Pandemics and Endemics: A Perspective. ACS OMEGA 2022; 7:5112-5130. [PMID: 35187327 PMCID: PMC8851616 DOI: 10.1021/acsomega.1c06093] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 01/19/2022] [Indexed: 05/02/2023]
Abstract
A healthy environment is necessary for a human being to survive. The contagious COVID-19 virus has disastrously contaminated the environment, leading to direct or indirect transmission. Therefore, the environment demands adequate prevention and control strategies at the beginning of the viral spread. Laser-induced graphene (LIG) is a three-dimensional carbon-based nanomaterial fabricated in a single step on a wide variety of low-cost to high-quality carbonaceous materials without using any additional chemicals potentially used for antiviral, antibacterial, and sensing applications. LIG has extraordinary properties, including high surface area, electrical and thermal conductivity, environmental-friendliness, easy fabrication, and patterning, making it a sustainable material for controlling SARS-CoV-2 or similar pandemic transmission through different sources. LIG's antiviral, antibacterial, and antibiofouling properties were mainly due to the thermal and electrical properties and texture derived from nanofibers and micropores. This perspective will highlight the conducted research and the future possibilities on LIG for its antimicrobial, antiviral, antibiofouling, and sensing applications. It will also manifest the idea of incorporating this sustainable material into different technologies like air purifiers, antiviral surfaces, wearable sensors, water filters, sludge treatment, and biosensing. It will pave a roadmap to explore this single-step fabrication technique of graphene to deal with pandemics and endemics in the coming future.
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Affiliation(s)
- Nandini Dixit
- Environmental
Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Swatantra P. Singh
- Environmental
Science and Engineering Department (ESED), Indian Institute of Technology Bombay, Mumbai 400076, India
- Centre
for Research in Nanotechnology & Science (CRNTS), Indian Institute of Technology Bombay, Mumbai 400076, India
- Interdisciplinary
Program in Climate Studies, Indian Institute
of Technology Bombay, Mumbai 400076, India
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14
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Berganza E, Hirtz M. Direct-Write Patterning of Biomimetic Lipid Membranes In Situ with FluidFM. ACS APPLIED MATERIALS & INTERFACES 2021; 13:50774-50784. [PMID: 34677057 DOI: 10.1021/acsami.1c15166] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The creation of biologically inspired artificial membranes on substrates with custom size and in close proximity to each other not only provides a platform to study biological processes in a simplified manner, but they also constitute building blocks for chemical or biological sensors integrated in microfluidic devices. Scanning probe lithography tools such as dip-pen nanolithography (DPN) have opened a new paradigm in this regard, although they possess some inherent drawbacks like the need to operate in air environment or the limited choice of lipids that can be patterned. In this work, we propose the use of the fluid force microscopy (FluidFM) technology to fabricate biomimetic membranes without losing the multiplexing capability of DPN but gaining flexibility in lipid inks and patterning environment. We shed light on the driving mechanisms of the FluidFM-mediated lithography processes in air and liquid. The obtained results should prompt the creation of more realistic biomimetic membranes with arbitrary complex phospholipid mixtures, cholesterol, and potential functional membrane proteins directly patterned in physiological environment.
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Affiliation(s)
- Eider Berganza
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Michael Hirtz
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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15
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Graphene coated magnetic nanoparticles facilitate the release of biofuels and oleochemicals from yeast cell factories. Sci Rep 2021; 11:20612. [PMID: 34663845 PMCID: PMC8523743 DOI: 10.1038/s41598-021-00189-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/03/2021] [Indexed: 11/08/2022] Open
Abstract
Engineering of microbial cells to produce high value chemicals is rapidly advancing. Yeast, bacteria and microalgae are being used to produce high value chemicals by utilizing widely available carbon sources. However, current extraction processes of many high value products from these cells are time- and labor-consuming and require toxic chemicals. This makes the extraction processes detrimental to the environment and not economically feasible. Hence, there is a demand for the development of simple, effective, and environmentally friendly method for the extraction of high value chemicals from these cell factories. Herein, we hypothesized that atomically thin edges of graphene having ability to interact with hydrophobic materials, could be used to extract high value lipids from cell factories. To achieve this, array of axially oriented graphene was deposited on iron nanoparticles. These coated nanoparticles were used to facilitate the release of intracellular lipids from Yarrowia lipolytica cells. Our treatment process can be integrated with the growth procedure and achieved the release of 50% of total cellular lipids from Y. lipolytica cells. Based on this result, we propose that nanoparticles coated with axially oriented graphene could pave efficient, environmentally friendly, and cost-effective way to release intracellular lipids from yeast cell factories.
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16
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Ghorbani M, Soleymani H, Hashemzadeh H, Mortezazadeh S, Sedghi M, Shojaeilangari S, Allahverdi A, Naderi-Manesh H. Microfluidic investigation of the effect of graphene oxide on mechanical properties of cell and actin cytoskeleton networks: experimental and theoretical approaches. Sci Rep 2021; 11:16216. [PMID: 34376720 PMCID: PMC8355332 DOI: 10.1038/s41598-021-95624-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Accepted: 07/28/2021] [Indexed: 11/09/2022] Open
Abstract
Biomechanical and morphological analysis of the cells is a novel approach for monitoring the environmental features, drugs, and toxic compounds’ effects on cells. Graphene oxide (GO) has a broad range of medical applications such as tissue engineering and drug delivery. However, the effects of GO nanosheets on biological systems have not been completely understood. In this study, we focused on the biophysical characteristics of cells and their changes resulting from the effect of GO nanosheets. The biophysical properties of the cell population were characterized as follows: cell stiffness was calculated by atomic force microscopy, cell motility and invasive properties were characterized in the microfluidic chip in which the cells are able to visualize cell migration at a single-cell level. Intracellular actin was stained to establish a quantitative picture of the intracellular cytoskeleton. In addition, to understand the molecular interaction of GO nanosheets and actin filaments, coarse-grained (CG) molecular dynamics (MD) simulations were carried out. Our results showed that GO nanosheets can reduce cell stiffness in MCF7 cells and MDA-MB-231 cell lines and highly inhibited cell migration (39.2%) in MCF-7 and (38.6%) in MDA-MB-231 cell lines through the GO nanosheets-mediated disruption of the intracellular cytoskeleton. In the presence of GO nanosheets, the cell migration of both cell lines, as well as the cell stiffness, significantly decreased. Moreover, after GO nanosheets treatment, the cell actin network dramatically changed. The experimental and theoretical approaches established a quantitative picture of changes in these networks. Our results showed the reduction of the order parameter in actin filaments was 23% in the MCF7 cell line and 20.4% in the MDA-MB-231 cell line. The theoretical studies also showed that the GO nanosheet–actin filaments have stable interaction during MD simulation. Moreover, the 2D free energy plot indicated the GO nanosheet can induce conformational changes in actin filaments. Our findings showed that the GO nanosheets can increase the distance of actin-actin subunits from 3.22 to 3.5 nm and in addition disrupt native contacts between two subunits which lead to separate actin subunits from each other in actin filaments. In this study, the biomechanical characteristics were used to explain the effect of GO nanosheets on cells which presents a novel view of how GO nanosheets can affect the biological properties of cells without cell death. These findings have the potential to be applied in different biomedical applications.
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Affiliation(s)
- Mohammad Ghorbani
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hossein Soleymani
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hadi Hashemzadeh
- Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Saeed Mortezazadeh
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Mosslim Sedghi
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Seyedehsamaneh Shojaeilangari
- Biomedical Engineering Group, Department of Electrical Engineering and Information Technology, Iranian Research Organization for Science and Technology (IROST), P.O. Box 33535111, Tehran, Iran
| | - Abdollah Allahverdi
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran
| | - Hossein Naderi-Manesh
- Department of Biophysics, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran. .,Department of Nanobiotechnology, Faculty of Biological Science, Tarbiat Modares University, 14115-154, Tehran, Iran.
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17
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Berganza E, Ebrahimkutty MP, Vasantham SK, Zhong C, Wunsch A, Navarrete A, Galic M, Hirtz M. A multiplexed phospholipid membrane platform for curvature sensitive protein screening. NANOSCALE 2021; 13:12642-12650. [PMID: 34268549 DOI: 10.1039/d1nr01133b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The curvature of lipid membranes plays a key role in many relevant biological processes such as membrane trafficking, vesicular budding and host-virus interactions. In vitro studies on the membrane curvature of simplified biomimetic models in the nanometer range are challenging, due to their complicated nanofabrication processes. In this work, we propose a simple and low-cost platform for curvature sensitive protein screening, prepared through scanning probe lithography (SPL) methods, where lipid bilayer patches of different compositions can be multiplexed onto substrate areas with tailored local curvature. The curvature is imposed by anchoring nanoparticles of the desired size to the substrate prior to lithography. As a proof of principle, we demonstrate that a positive curvature membrane sensitive protein derived from the BAR domain of Nadrin2 binds selectively to lipid patches patterned on substrate areas coated with 100 nm nanoparticles. The platform opens up a path for screening curvature-dependent protein-membrane interaction studies by providing a flexible and easy to prepare substrate with control over lipid composition and membrane curvature.
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Affiliation(s)
- Eider Berganza
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany.
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18
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Savenko M, Rivel T, Yesylevskyy S, Ramseyer C. Influence of Substrate Hydrophilicity on Structural Properties of Supported Lipid Systems on Graphene, Graphene Oxides, and Silica. J Phys Chem B 2021; 125:8060-8074. [PMID: 34284579 DOI: 10.1021/acs.jpcb.1c04615] [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]
Abstract
Pristine graphene, a range of graphene oxides, and silica substrates were used to investigate the effect of surface hydrophilicity on supported lipid bilayers by means of all-atom molecular dynamics simulations. Supported 1,2-dioleoyl-sn-glycero-3-phosphocholine lipid bilayers were found in close-contact conformations with hydrophilic substrates with as low as 5% oxidation level, while self-assembled monolayers occur on pure hydrophobic graphene only. Lipids and water at the surface undergo large redistribution to maintain the stability of the supported bilayers. Deposition of bicelles on increasingly hydrophilic substrates shows the continuous process of reshaping of the supported system and makes intermediate stages between self-assembled monolayers and supported bilayers. The bilayer thickness changes with hydrophilicity in a complex manner, while the number of water molecules per lipid in the hydration layer increases together with hydrophilicity.
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Affiliation(s)
- Mariia Savenko
- Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France
| | - Timothée Rivel
- Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.,CEITEC - Central European Institute of Technology, Masaryk University, Kamenice, CZ-62500 Brno, Czech Republic.,National Centre for Biomolecular Research, Faculty of Science, Masaryk University, Kamenice, CZ-62500 Brno, Czech Republic
| | - Semen Yesylevskyy
- Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France.,Department of Physics of Biological Systems, Institute of Physics of the National Academy of Sciences of Ukraine, Prospect Nauky 46, 03028 Kyiv, Ukraine
| | - Christophe Ramseyer
- Laboratoire Chrono Environnement UMR CNRS 6249, Université de Bourgogne Franche-Comté, 16 route de Gray, 25030 Besançon Cedex, France
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19
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Mollahosseini A, Abdelrasoul A. Molecular dynamics simulation for membrane separation and porous materials: A current state of art review. J Mol Graph Model 2021; 107:107947. [PMID: 34126546 DOI: 10.1016/j.jmgm.2021.107947] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/13/2021] [Accepted: 05/17/2021] [Indexed: 01/29/2023]
Abstract
Computational frameworks have been under specific attention within the last two decades. Molecular Dynamics (MD) simulations, identical to the other computational approaches, try to address the unknown question, lighten the dark areas of unanswered questions, to achieve probable explanations and solutions. Owing to their complex microporous structure on one side and the intricate biochemical nature of various materials used in the structure, separative membrane materials possess peculiar degrees of complications. More notably, as nanocomposite materials are often integrated into separative membranes, thin-film nanocomposites and porous separative nanocomposite materials could possess an additional level of complexity with regard to the nanoscale interactions brought to the structure. This critical review intends to cover the recent methods used to assess membranes and membrane materials. Incorporation of MD in membrane technology-related fields such as desalination, fuel cell-based energy production, blood purification through hemodialysis, etc., were briefly covered. Accordingly, this review could be used to understand the current extent of MD applications for separative membranes. The review could also be used as a guideline to use the proper MD implementation within the related fields.
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Affiliation(s)
- Arash Mollahosseini
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, S7N 5A9, Canada
| | - Amira Abdelrasoul
- Department of Chemical and Biological Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, S7N 5A9, Canada; Division of Biomedical Engineering, University of Saskatchewan, 57 Campus Drive, Saskatoon, Saskatchewan, S7N 5A9, Canada.
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20
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Bimová P, Barbieriková Z, Grenčíková A, Šípoš R, Škulcová AB, Krivjanská A, Mackuľak T. Environmental risk of nanomaterials and nanoparticles and EPR technique as an effective tool to study them-a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:22203-22220. [PMID: 33733403 DOI: 10.1007/s11356-021-13270-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Accepted: 03/01/2021] [Indexed: 06/12/2023]
Abstract
Nanotechnologies and different types of nanomaterials belong in present day to intensively studied materials due to their unique properties and diverse potential applications in, e.g., electronics, medicine, or display technologies. Together with the investigation of their desired beneficial properties, a need to investigate and evaluate their influence on the environment and possible harmful effects towards living organisms is growing. This review summarizes possible toxic effects of nanomaterials on environment and living organisms, focusing on the possible bioaccumulation in organisms, toxicity, and its mechanisms. The main goal of this review is to refer to potential environmental risks rising from the use of nanomaterials and the necessity to deal with the possible toxic effects considering the growing interest in the wide-scale utilization of these materials. Electron paramagnetic resonance spectroscopy as the only analytical technique capable of detecting radical species enables detection, quantification, and monitoring of the generation of short-lived radicals often coupled with toxic effects of nanomaterials, which makes it an important method in the process of nanotoxicity mechanism determination.
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Affiliation(s)
- Paula Bimová
- Department of Inorganic Technology, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia.
| | - Zuzana Barbieriková
- Department of Physical Chemistry, Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Anna Grenčíková
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Rastislav Šípoš
- Department of Inorganic Chemistry, Institute of Inorganic Chemistry, Technology and Materials, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Andrea Butor Škulcová
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Anna Krivjanská
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
| | - Tomáš Mackuľak
- Department of Environmental Engineering, Institute of Chemical and Environmental Engineering, Faculty of Chemical and Food Technology, Slovak University of Technology, Radlinského 9, 812 37, Bratislava, Slovakia
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21
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Zandi P, Ghasemy E, Khedri M, Rashidi A, Maleki R, Miri Jahromi A. Shedding Light on Miniaturized Dialysis Using MXene 2D Materials: A Computational Chemistry Approach. ACS OMEGA 2021; 6:6312-6325. [PMID: 33718722 PMCID: PMC7948252 DOI: 10.1021/acsomega.0c06118] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/16/2021] [Indexed: 05/09/2023]
Abstract
Materials science can pave the way toward developing novel devices at the service of human life. In recent years, computational materials engineering has been promising in predicting material performance prior to the experiments. Herein, this capability has been carefully employed to tackle severe problems associated with kidney diseases through proposing novel nanolayers to adsorb urea and accordingly causing the wearable artificial kidney (WAK) to be viable. The two-dimensional metal carbide and nitride (MXene) nanosheets can leverage the performance of various devices since they are highly tunable along with fascinating surface chemistry properties. In this study, molecular dynamics (MD) simulations were exploited to investigate the interactions between urea and different MXene nanosheets. To this end, detailed analyses were performed that clarify the suitability of these nanostructures in urea adsorption. The atomistic simulations were carried out on Mn2C, Cd2C, Cu2C, Ti2C, W2C, Ta2C, and urea to determine the most appropriate urea-removing adsorbent. It was found that Cd2C was more efficient followed by Mn2C, which can be effectively exploited in WAK devices at the service of human health.
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Affiliation(s)
- Pegah Zandi
- School
of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran 1417466191, Iran
| | - Ebrahim Ghasemy
- Nanotechnology
Department, School of New Technologies, Iran University of Science and Technology, Tehran 1684613114, Iran
| | - Mohammad Khedri
- Department
of Chemical Engineering, Amirkabir University
of Technology (Tehran Polytechnic), 424 Hafez Avenue, Tehran 1591634311, Iran
| | - Alimorad Rashidi
- Nanotechnology
Research Center, Research Institute of Petroleum
Industry (RIPI), Tehran 1485733111, Iran
| | - Reza Maleki
- Computational
Biology and Chemistry Group (CBCG), Universal
Scientific Education and Research Network (USERN), Tehran 1449614535, Iran
| | - Ahmad Miri Jahromi
- Computational
Biology and Chemistry Group (CBCG), Universal
Scientific Education and Research Network (USERN), Tehran 1449614535, Iran
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22
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Shunaev VV, Glukhova OE. Nanoindentation of Graphene/Phospholipid Nanocomposite: A Molecular Dynamics Study. Molecules 2021; 26:E346. [PMID: 33440910 PMCID: PMC7826516 DOI: 10.3390/molecules26020346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Revised: 01/08/2021] [Accepted: 01/08/2021] [Indexed: 11/23/2022] Open
Abstract
Graphene and phospholipids are widely used in biosensing and drug delivery. This paper studies the mechanical and electronic properties of a composite based on two graphene flakes and dipalmitoylphosphatidylcholine (DPPC) phospholipid molecules located between them via combination of various mathematical modeling methods. Molecular dynamics simulation showed that an adhesion between bilayer graphene and DPCC increases during nanoindentation of the composite by a carbon nanotube (CNT). Herewith, the DPPC molecule located under a nanotip takes the form of graphene and is not destroyed. By the Mulliken procedure, it was shown that the phospholipid molecules act as a "buffer" of charge between two graphene sheets and CNT. The highest values of electron transfer in the graphene/DPPC system were observed at the lower indentation point, when the deflection reached its maximum value.
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Affiliation(s)
| | - Olga E. Glukhova
- Department of Physics, Saratov State University, 410012 Saratov, Russia;
- Institute for Bionic Technologies and Engineering, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119991 Moscow, Russia
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23
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Arjmandi-Tash H, Lima LMC, A Belyaeva L, Mukhina T, Fragneto G, Kros A, Charitat T, Schneider GF. Encapsulation of Graphene in the Hydrophobic Core of a Lipid Bilayer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14478-14482. [PMID: 33232163 PMCID: PMC7726894 DOI: 10.1021/acs.langmuir.0c01691] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Theoretical simulations have predicted that a lipid bilayer forms a stable superstructure when a sheet of graphene is inserted in its hydrophobic core. We experimentally produced for the first time a lipid-graphene-lipid assembly by combining the Langmuir-Blodgett and the Langmuir-Schaefer methods. Graphene is sandwiched and remains flat within the hydrophobic core of the lipid bilayer. Using infrared spectroscopy, ellipsometry, and neutron reflectometry, we characterized the superstructure at every fabrication step. The hybrid superstructure is mechanically stable and graphene does not disturb the natural lipid bilayer structure.
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Affiliation(s)
- Hadi Arjmandi-Tash
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Lia M C Lima
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Liubov A Belyaeva
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Tetiana Mukhina
- Institut Laue-Langevin, 71 Avenue des Martyrs, BP 156, 38042 Grenoble, France
- Institut Charles Sadron (ICS), UPR22 CNRS, Université de Strasbourg, 23 Rue du Lœss, 67034 Strasbourg, France
| | - Giovanna Fragneto
- Institut Laue-Langevin, 71 Avenue des Martyrs, BP 156, 38042 Grenoble, France
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
| | - Thierry Charitat
- Institut Charles Sadron (ICS), UPR22 CNRS, Université de Strasbourg, 23 Rue du Lœss, 67034 Strasbourg, France
| | - Grégory F Schneider
- Department of Supramolecular & Biomaterials Chemistry, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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24
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Kim CH, Kim TH. Graphene Hybrid Materials for Controlling Cellular Microenvironments. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4008. [PMID: 32927729 PMCID: PMC7559936 DOI: 10.3390/ma13184008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 01/18/2023]
Abstract
Cellular microenvironments are known as key factors controlling various cell functions, including adhesion, growth, migration, differentiation, and apoptosis. Many materials, including proteins, polymers, and metal hybrid composites, are reportedly effective in regulating cellular microenvironments, mostly via reshaping and manipulating cell morphologies, which ultimately affect cytoskeletal dynamics and related genetic behaviors. Recently, graphene and its derivatives have emerged as promising materials in biomedical research owing to their biocompatible properties as well as unique physicochemical characteristics. In this review, we will highlight and discuss recent studies reporting the regulation of the cellular microenvironment, with particular focus on the use of graphene derivatives or graphene hybrid materials to effectively control stem cell differentiation and cancer cell functions and behaviors. We hope that this review will accelerate research on the use of graphene derivatives to regulate various cellular microenvironments, which will ultimately be useful for both cancer therapy and stem cell-based regenerative medicine.
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Affiliation(s)
- Cheol-Hwi Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea;
| | - Tae-Hyung Kim
- School of Integrative Engineering, Chung-Ang University, Seoul 06974, Korea;
- Integrative Research Centre for Two-Dimensional Functional Materials, Institute of Interdisciplinary Convergence Research, Chung-Ang University, Seoul 06974, Korea
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25
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Benedetti F, Fu L, Thalmann F, Charitat T, Rubin A, Loison C. Coarse-Grain Simulations of Solid Supported Lipid Bilayers with Varying Hydration Levels. J Phys Chem B 2020; 124:8287-8298. [DOI: 10.1021/acs.jpcb.0c03913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Florian Benedetti
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, F-69622, Villeurbanne, France
| | - Li Fu
- Institut Charles Sadron, Université de Strasbourg, CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Fabrice Thalmann
- Institut Charles Sadron, Université de Strasbourg, CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Thierry Charitat
- Institut Charles Sadron, Université de Strasbourg, CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Anne Rubin
- Institut Charles Sadron, Université de Strasbourg, CNRS, 23 rue du Loess, BP 84047, 67034 Strasbourg Cedex 2, France
| | - Claire Loison
- Institut Lumière Matière, University of Lyon, Université Claude Bernard Lyon 1, CNRS, F-69622, Villeurbanne, France
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26
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Structural effects of dimensional nano-fillers on the properties of Sapium sebiferum oil-based polyurethane matrix: Experiments and molecular dynamics simulation. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122709] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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27
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Slepchenkov MM, Glukhova OE. Improving the Sensory Properties of Layered Phospholipid-Graphene Films Due to the Curvature of Graphene Layers. Polymers (Basel) 2020; 12:E1710. [PMID: 32751546 PMCID: PMC7465900 DOI: 10.3390/polym12081710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 12/21/2022] Open
Abstract
This article is devoted to the in silico study of the sensory properties of mono- and bilayer phospholipid-graphene films with planar and curved graphene sheets. The DPPC (dipalmitoylphosphatidylcholine) molecules are considered as phospholipid structures. These molecules are part of lipid bilayers, liposomes and cell membranes. To find a way to improve the sensory properties of phospholipid-graphene films, we studied the effect of the curvature of the graphene sheet on the charge transfer and electrical conductivity of the films. The distribution of the electron charge density over the film atoms was calculated using the self-consistent-charge density-functional tight-binding method (SCC-DFTB). The calculation of the current through phospholipid-graphene films was carried out within the framework of the Landauer-Buttiker formalism using the Keldysh nonequilibrium Green function technique. As a result of the calculations, the optimal configuration of the arrangement of DPPC molecules between two graphene layers was established. This configuration provides the maximum possible increase in current to 1 μA at low voltages of ~0.2 V and is achieved for curved graphene with a radius of curvature of ~2.7 nm at individual points of graphene atomic network.
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Affiliation(s)
- Michael M Slepchenkov
- Department of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia
| | - Olga E Glukhova
- Department of Physics, Saratov State University, Astrakhanskaya Street 83, 410012 Saratov, Russia
- Laboratory of Biomedical Nanotechnology, I.M. Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya Street 2-4, 119991 Moscow, Russia
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28
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Liu HY, Kumar R, Takai M, Hirtz M. Enhanced Stability of Lipid Structures by Dip-Pen Nanolithography on Block-Type MPC Copolymer. Molecules 2020; 25:E2768. [PMID: 32549371 PMCID: PMC7356513 DOI: 10.3390/molecules25122768] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 01/08/2023] Open
Abstract
Biomimetic lipid membranes on solid supports have been used in a plethora of applications, including as biosensors, in research on membrane proteins or as interfaces in cell experiments. For many of these applications, structured lipid membranes, e.g., in the form of arrays with features of different functionality, are highly desired. The stability of these features on a given substrate during storage and in incubation steps is key, while at the same time the substrate ideally should also exhibit antifouling properties. Here, we describe the highly beneficial properties of a 2-methacryloyloxyethyl phosphorylcholine (MPC) copolymer for the stability of supported lipid membrane structures generated by dip-pen nanolithography with phospholipids (L-DPN). The MPC copolymer substrates allow for more stable and higher membrane stack structures in comparison to other hydrophilic substrates, like glass or silicon oxide surfaces. The structures remain highly stable under immersion in liquid and subsequent incubation and washing steps. This allows multiplexed functionalization of lipid arrays with antibodies via microchannel cantilever spotting (µCS), without the need of orthogonal binding tags for each antibody type. The combined properties of the MPC copolymer substrate demonstrate a great potential for lipid-based biomedical sensing and diagnostic platforms.
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Affiliation(s)
- Hui-Yu Liu
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (H.-Y.L.); (R.K.)
| | - Ravi Kumar
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (H.-Y.L.); (R.K.)
| | - Madoka Takai
- Department of Bioengineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-Ku, Tokyo 113-8656, Japan;
| | - Michael Hirtz
- Institute of Nanotechnology (INT) & Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (H.-Y.L.); (R.K.)
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29
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Jeong S, Pinals RL, Dharmadhikari B, Song H, Kalluri A, Debnath D, Wu Q, Ham MH, Patra P, Landry MP. Graphene Quantum Dot Oxidation Governs Noncovalent Biopolymer Adsorption. Sci Rep 2020; 10:7074. [PMID: 32341425 PMCID: PMC7184744 DOI: 10.1038/s41598-020-63769-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 03/31/2020] [Indexed: 01/06/2023] Open
Abstract
Graphene quantum dots (GQDs) are an allotrope of carbon with a planar surface amenable to functionalization and nanoscale dimensions that confer photoluminescence. Collectively, these properties render GQDs an advantageous platform for nanobiotechnology applications, including optical biosensing and delivery. Towards this end, noncovalent functionalization offers a route to reversibly modify and preserve the pristine GQD substrate, however, a clear paradigm has yet to be realized. Herein, we demonstrate the feasibility of noncovalent polymer adsorption to GQD surfaces, with a specific focus on single-stranded DNA (ssDNA). We study how GQD oxidation level affects the propensity for polymer adsorption by synthesizing and characterizing four types of GQD substrates ranging ~60-fold in oxidation level, then investigating noncovalent polymer association to these substrates. Adsorption of ssDNA quenches intrinsic GQD fluorescence by 31.5% for low-oxidation GQDs and enables aqueous dispersion of otherwise insoluble no-oxidation GQDs. ssDNA-GQD complexation is confirmed by atomic force microscopy, by inducing ssDNA desorption, and with molecular dynamics simulations. ssDNA is determined to adsorb strongly to no-oxidation GQDs, weakly to low-oxidation GQDs, and not at all for heavily oxidized GQDs. Finally, we reveal the generality of the adsorption platform and assess how the GQD system is tunable by modifying polymer sequence and type.
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Affiliation(s)
- Sanghwa Jeong
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Rebecca L Pinals
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA
| | - Bhushan Dharmadhikari
- Department of Electrical and Computer Engineering & Technology, Minnesota State University, Mankato, MA, 56001, USA
| | - Hayong Song
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Ankarao Kalluri
- Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, 06604, USA
| | - Debika Debnath
- Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, 06604, USA
| | - Qi Wu
- Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, 06604, USA
| | - Moon-Ho Ham
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 61005, South Korea
| | - Prabir Patra
- Department of Biomedical Engineering, University of Bridgeport, Bridgeport, CT, 06604, USA. .,Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, 06604, USA.
| | - Markita P Landry
- Department of Chemical and Biomolecular Engineering, University of California, Berkeley, Berkeley, CA, 94720, USA. .,Innovative Genomics Institute (IGI), Berkeley, CA, 94720, USA. .,California Institute for Quantitative Biosciences, QB3, University of California, Berkeley, Berkeley, CA, 94720, USA. .,Chan-Zuckerberg Biohub, San Francisco, CA, 94158, USA.
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30
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Liu G, Petrosko SH, Zheng Z, Mirkin CA. Evolution of Dip-Pen Nanolithography (DPN): From Molecular Patterning to Materials Discovery. Chem Rev 2020; 120:6009-6047. [DOI: 10.1021/acs.chemrev.9b00725] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Guoqiang Liu
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textile and Clothing, The Hong Kong Polytechnic University, Hong Kong, SAR, China
| | - Sarah Hurst Petrosko
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textile and Clothing, The Hong Kong Polytechnic University, Hong Kong, SAR, China
| | - Chad A. Mirkin
- Department of Chemistry and International Institute for Nanotechnology, Northwestern University, Evanston, Illinois 60208, United States
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31
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Vasconcelos JM, Zen F, Angione MD, Cullen RJ, Santos-Martinez MJ, Colavita PE. Understanding the Carbon–Bio Interface: Influence of Surface Chemistry and Buffer Composition on the Adsorption of Phospholipid Liposomes at Carbon Surfaces. ACS APPLIED BIO MATERIALS 2020; 3:997-1007. [DOI: 10.1021/acsabm.9b01011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Federico Zen
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | | | - Ronan J. Cullen
- School of Chemistry, Trinity College Dublin, Dublin 2, Ireland
| | - Maria J. Santos-Martinez
- School of Pharmacy and Pharmaceutical Sciences, School of Medicine and Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2, Ireland
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32
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Lai CH, Tsai WS, Yang MH, Chou TY, Chang YC. A two-dimensional immunomagnetic nano-net for the efficient isolation of circulating tumor cells in whole blood. NANOSCALE 2019; 11:21119-21127. [PMID: 31538997 DOI: 10.1039/c9nr06256d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
An immunomagnetic "nano-net" was designed and synthesized for specifically capturing rare cells of interest from mixtures. The nano-net, Ab@Lipo-MNP-GO, consists of conjugated antibody molecules on a lipid coated magnetic nanoparticle-graphene oxide sheet complex. The magnetism, chemical composition, and the morphology of the construct and its precursors were characterized by SQUID, FTIR, TGA, DLS and SEM, to confirm the feasibility of the synthetic steps and the resulting properties suitable for solution phase immuno-recognition for cell capture. When applied to capturing circulating tumor cells (CTCs) in oral, colon and lung cancer clinical patients' blood samples, the nano-net construct exhibited far superior ability whereas conventional immunomagnetic beads in some cases were unable to capture any CTCs, even by increasing the bead concentration. Confocal images showed that the nano-net wrapped around the CTCs while the immunomagnetic beads attached them with point contacts. A stable, patch-like multivalent matrix nano-net was demonstrated to tackle the shortcomings of single point contact of immunomagnetic beads to the target cell. This strategy is universal for any cell separation in complex fluids.
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Affiliation(s)
- Chian-Hui Lai
- Graduate Institute of Biomedical Engineering, National Chung Hsing University, Taichung, Taiwan. and Genomics Research Center, Academia Sinica, Taipei, Taiwan. and Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Sy Tsai
- Graduate Institute of Clinical Medical Science, Chang-Gung University, Taoyuan, Taiwan and Division of Colon and Rectal Surgery, Chang-Gung Memorial Hospital, Taoyuan, Taiwan
| | - Muh-Hwa Yang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. and Genome Research Center, National Yang-Ming University, Taipei, Taiwan and Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan and Division of Medical Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Teh-Ying Chou
- Division of Thoracic Oncology, Department of Chest Medicine, Taipei Veterans General Hospital, Taipei, Taiwan and Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ying-Chih Chang
- Genomics Research Center, Academia Sinica, Taipei, Taiwan. and Department of Chemical Engineering, Stanford University, Stanford, California, USA
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33
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Navikas V, Gavutis M, Rakickas T, Valiokas RN. Scanning Probe-Directed Assembly and Rapid Chemical Writing Using Nanoscopic Flow of Phospholipids. ACS APPLIED MATERIALS & INTERFACES 2019; 11:28449-28460. [PMID: 31287949 DOI: 10.1021/acsami.9b07547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Nanofluidic systems offer a huge potential for discovery of new molecular transport and chemical phenomena that can be employed for future technologies. Herein, we report on the transport behavior of surface-reactive compounds in a nanometer-scale flow of phospholipids from a scanning probe. We have investigated microscopic deposit formation on polycrystalline gold by lithographic printing and writing of 1,2-dioleoyl-sn-glycero-3-phosphocholine and eicosanethiol mixtures, with the latter compound being a model case for self-assembled monolayers (SAMs). By analyzing the ink transport rates, we found that the transfer of thiols was fully controlled by the fluid lipid matrix allowing to achieve a certain jetting regime, i.e., transport rates previously not reported in dip-pen nanolithography (DPN) studies on surface-reactive, SAM-forming molecules. Such a transport behavior deviated significantly from the so-called molecular diffusion models, and it was most obvious at the high writing speeds, close to 100 μm s-1. Moreover, the combined data from imaging ellipsometry, scanning electron microscopy, atomic force microscopy (AFM), and spectroscopy revealed a rapid and efficient ink phase separation occurring in the AFM tip-gold contact zone. The force curve analysis indicated formation of a mixed ink meniscus behaving as a self-organizing liquid. Based on our data, it has to be considered as one of the co-acting mechanisms driving the surface reactions and self-assembly under such highly nonequilibrium, crowded environment conditions. The results of the present study significantly extend the capabilities of DPN using standard AFM instrumentation: in the writing regime, the patterning speed was already comparable to that achievable by using electron beam systems. We demonstrate that lipid flow-controlled chemical patterning process is directly applicable for rapid prototyping of solid-state devices having mesoscopic features as well as for biomolecular architectures.
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Affiliation(s)
- Vytautas Navikas
- Department of Nanoengineering , Center for Physical Sciences and Technology , Savanorių 231 , Vilnius LT-02300 , Lithuania
| | - Martynas Gavutis
- Department of Nanoengineering , Center for Physical Sciences and Technology , Savanorių 231 , Vilnius LT-02300 , Lithuania
| | - Tomas Rakickas
- Department of Nanoengineering , Center for Physical Sciences and Technology , Savanorių 231 , Vilnius LT-02300 , Lithuania
| | - Ramu Nas Valiokas
- Department of Nanoengineering , Center for Physical Sciences and Technology , Savanorių 231 , Vilnius LT-02300 , Lithuania
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34
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Prasad R, Yadav AS, Gorain M, Chauhan DS, Kundu GC, Srivastava R, Selvaraj K. Graphene Oxide Supported Liposomes as Red Emissive Theranostics for Phototriggered Tissue Visualization and Tumor Regression. ACS APPLIED BIO MATERIALS 2019; 2:3312-3320. [DOI: 10.1021/acsabm.9b00335] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Rajendra Prasad
- Nano and Computational Materials Lab, Catalysis Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), National Chemical Laboratory, Pune 411008, India
| | - Amit S. Yadav
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune, India
| | - Mahadeo Gorain
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune, India
| | - Deepak S. Chauhan
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Gopal C. Kundu
- Laboratory of Tumor Biology, Angiogenesis and Nanomedicine Research, National Center for Cell Science, Pune, India
| | - Rohit Srivastava
- Department of Biosciences and Bioengineering, IIT Bombay, Powai, Mumbai 400076, India
| | - Kaliaperumal Selvaraj
- Nano and Computational Materials Lab, Catalysis Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), National Chemical Laboratory, Pune 411008, India
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35
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Liu G, Hirtz M, Fuchs H, Zheng Z. Development of Dip-Pen Nanolithography (DPN) and Its Derivatives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900564. [PMID: 30977978 DOI: 10.1002/smll.201900564] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 03/08/2019] [Indexed: 05/13/2023]
Abstract
Dip-pen nanolithography (DPN) is a unique nanofabrication tool that can directly write a variety of molecular patterns on a surface with high resolution and excellent registration. Over the past 20 years, DPN has experienced a tremendous evolution in terms of applicable inks, a remarkable improvement in fabrication throughput, and the development of various derivative technologies. Among these developments, polymer pen lithography (PPL) is the most prominent one that provides a large-scale, high-throughput, low-cost tool for nanofabrication, which significantly extends DPN and beyond. These developments not only expand the scope of the wide field of scanning probe lithography, but also enable DPN and PPL as general approaches for the fabrication or study of nanostructures and nanomaterials. In this review, a focused summary and historical perspective of the technological development of DPN and its derivatives, with a focus on PPL, in one timeline, are provided and future opportunities for technological exploration in this field are proposed.
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Affiliation(s)
- Guoqiang Liu
- Laboratory for Advanced Interfacial Materials and Devices, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong SAR, China
| | - Michael Hirtz
- Institute of Nanotechnology (INT) and Karlsruhe, Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Harald Fuchs
- Institute of Nanotechnology (INT) and Karlsruhe, Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
- Physical Institute and Center for Nanotechnology (CeNTech), University of Münster, Münster, 48149, Germany
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, 999077, Hong Kong SAR, China
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36
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Farell M, Wetherington M, Shankla M, Chae I, Subramanian S, Kim SH, Aksimentiev A, Robinson J, Kumar M. Characterization of the Lipid Structure and Fluidity of Lipid Membranes on Epitaxial Graphene and Their Correlation to Graphene Features. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:4726-4735. [PMID: 30844287 PMCID: PMC6449857 DOI: 10.1021/acs.langmuir.9b00164] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Graphene has been recognized as an enhanced platform for biosensors because of its high electron mobility. To integrate active membrane proteins into graphene-based materials for such applications, graphene's surface must be functionalized with lipids to mimic the biological environment of these proteins. Several studies have examined supported lipids on various types of graphene and obtained conflicting results for the lipid structure. Here, we present a correlative characterization technique based on fluorescence measurements in a Raman spectroscopy setup to study the lipid structure and dynamics on epitaxial graphene. Compared to other graphene variations, epitaxial graphene is grown on a substrate more conducive to production of electronics and offers unique topographic features. On the basis of experimental and computational results, we propose that a lipid sesquilayer (1.5 bilayer) forms on epitaxial graphene and demonstrate that the distinct surface features of epitaxial graphene affect the structure and diffusion of supported lipids.
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Affiliation(s)
| | | | - Manish Shankla
- Department of Physics , University of Illinois at Urbana Champaign , Urbana , Illinois 61801 , United States
| | | | | | | | - Aleksei Aksimentiev
- Department of Physics , University of Illinois at Urbana Champaign , Urbana , Illinois 61801 , United States
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37
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Santiago R, Reigada R. Interaction modes between nanosized graphene flakes and liposomes: Adsorption, insertion and membrane fusion. Biochim Biophys Acta Gen Subj 2019; 1863:723-731. [PMID: 30716365 DOI: 10.1016/j.bbagen.2019.01.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/14/2019] [Accepted: 01/29/2019] [Indexed: 12/15/2022]
Abstract
BACKGROUND Understanding the effects of graphene-based nanomaterials on lipid membranes is critical to determine their environmental impact and their efficiency in the biomedical context. Graphene has been reported to favourably interact with biological and model lipid membranes. METHODS We report on a systematic coarse-grained molecular dynamics study of the interaction modes of graphene nanometric flakes with POPC/cholesterol liposome membranes. We have simulated graphene layers with a variety of sizes and oxidation degrees, and we have analyzed the trajectories, the interaction modes, and the energetics of the observed phenomena. RESULTS Three interaction modes are reported. Graphene can be transiently adsorbed onto the liposome membrane and/or inserted in its hydrophobic region. Inserted nanosheets prefer a perpendicular orientation, and tilt in order to maximize the contact with phospholipid tails while avoiding the contact with cholesterol molecules. When placed between two liposomes, graphene facilitates their fusion in a single vesicle. CONCLUSIONS Graphene can be temporary adsorbed on the liposome before insertion. Bilayer curvature has an influence on the orientation of inserted graphene particles. Cholesterol molecules are depleted from the surrounding of graphene particles. Graphene layers may catalyse membrane fusion by bypassing the energy barrier required in stalk formation. GENERAL SIGNIFICANCE Nanometric graphene layers can be adsorbed/inserted in lipid-based membranes in different manners and affect the cholesterol distribution in the membrane, implying important consequences on the structure and functionality of biological cell membranes, and on the bioaccumulation of graphene in living organisms. The graphene-mediated mechanism opens new possibilities for vesicle fusion in the experimental context.
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Affiliation(s)
- Raul Santiago
- Department de Ciència dels Materials i Química Física and Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Barcelona, Spain
| | - Ramon Reigada
- Department de Ciència dels Materials i Química Física and Institut de Química Teòrica i Computacional (IQTCUB), Universitat de Barcelona, Barcelona, Spain.
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38
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Li Z, Zhang Y, Ma J, Meng Q, Fan J. Modeling Interactions between Liposomes and Hydrophobic Nanosheets. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804992. [PMID: 30589212 DOI: 10.1002/smll.201804992] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Indexed: 05/09/2023]
Abstract
2D nanomaterials could cause structural disruption and cytotoxic effects to cells, which greatly challenges their promising biomedical applications including biosensing, bioimaging, and drug delivery. Here, the physical and mechanical interaction between lipid liposomes and hydrophobic nanosheets is studied utilizing coarse-grained (CG) molecular dynamics (MD) simulations. The simulations reveal a variety of characteristic interaction morphologies that depend on the size and the orientation of nanosheets. Dynamic and thermodynamic analyses on the morphologic evolution provide insights into molecular motions such as "nanosheet rotation," "lipid extraction," "lipid flip-flop," and "lipid spreading." Driven by these molecular motions, hydrophobic nanosheets cause morphologic changes of liposomes. The lipid bilayer structure can be corrugated, and the overall liposome sphere can be split or collapsed by large nanosheets. In addition, nanosheets embedded into lipid bilayers greatly weaken the fluidity of lipids, and this effect can be cumulatively enhanced as nanosheets continuously intrude. These results could facilitate molecular-level understanding on the cytotoxicity of nanomaterials, and help future nanotoxicology studies associating computational modeling with experiments.
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Affiliation(s)
- Zhen Li
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Yonghui Zhang
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jiale Ma
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Qiangqiang Meng
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
| | - Jun Fan
- Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, China
- City University of Hong Kong, Shenzhen Research Institute, Shenzhen, 518057, China
- Center for Advanced Nuclear Safety and Sustainable Development, City University of Hong Kong, Hong Kong, China
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39
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Ray S, Sen S, Das A, Bose A, Bhattacharyya A, Das A, Chattopadhyay S, Singha SS, Singha A, Patra HK, Dasgupta AK. Bioelectronics at graphene-biofilm interface: Schottky junction formation and capacitive transitions. ACTA ACUST UNITED AC 2018. [DOI: 10.1002/mds3.10013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sanhita Ray
- Department of Biochemistry; University of Calcutta; Kolkata India
| | - Sayantani Sen
- Institute of Radiophysics and Electronics; University of Calcutta; Kolkata India
| | - Alakananda Das
- Institute of Radiophysics and Electronics; University of Calcutta; Kolkata India
| | - Anirban Bose
- Department of Biochemistry; University of Calcutta; Kolkata India
| | | | - Avishek Das
- Department of Electronic Science; University of Calcutta; Kolkata India
| | | | | | | | - Hirak K. Patra
- Department of Chemical Engineering and Biotechnology; University of Cambridge; Cambridge UK
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40
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Bonakala S, Lalitha A, Shin JE, Moghadam F, Semino R, Park HB, Maurin G. Understanding of the Graphene Oxide/Metal-Organic Framework Interface at the Atomistic Scale. ACS APPLIED MATERIALS & INTERFACES 2018; 10:33619-33629. [PMID: 30182712 DOI: 10.1021/acsami.8b09851] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An atomistic model of the metal-organic framework (MOF) ZIF-8/graphene oxide (GO) interface has been constructed using a combination of density functional theory calculations and force-field-based molecular dynamics simulations. Two microscopic models of GO were constructed integrating basal plane and both basal and edge plane functional groups, called GO-OH and GO-CO2H, respectively. Analysis of the MOF/GO site-to-site interactions, surface coverage, and GO conformation/stiffness and a full characterization of the interfacial region is provided with a special emphasis on the influence of the chemical composition of GO. It was evidenced that the structure of the GO/ZIF-8 composite at the interface is stabilized by a relatively homogeneous set of interactions between the hydrogen atoms of the -NH and -OH terminal functions of ZIF-8 and the oxygen atoms of the epoxy, hydroxyl, and carboxylic groups of GO, leading to an optimal coverage of the MOF surface by GO. Such a scenario implies a significant distortion of the first GO layer brought into contact with the MOF surface, leading to an interfacial region with a relatively small width. This computational exploration strongly suggests that a very good compatibility between these two components would lead, in turn, to the preparation of defect-free ZIF-8/GO films. These predictions are correlated with an experimental effort that consists of successfully prepared homogeneous MOF/GO films that were further characterized by transmission electron microscopy and mechanical testing.
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Affiliation(s)
- Satyanarayana Bonakala
- Institut Charles Gerhardt Montpellier UMR 5253 CNRS, Université de Montpellier , Place E. Bataillon , 34095 Montpellier Cedex 05, France
| | - Anusha Lalitha
- Institut Charles Gerhardt Montpellier UMR 5253 CNRS, Université de Montpellier , Place E. Bataillon , 34095 Montpellier Cedex 05, France
| | - Jae Eun Shin
- Department of Energy Engineering , Hanyang University , Seoul 04763 , Republic of Korea
| | - Farhad Moghadam
- Department of Energy Engineering , Hanyang University , Seoul 04763 , Republic of Korea
| | - Rocio Semino
- Institut Charles Gerhardt Montpellier UMR 5253 CNRS, Université de Montpellier , Place E. Bataillon , 34095 Montpellier Cedex 05, France
| | - Ho Bum Park
- Department of Energy Engineering , Hanyang University , Seoul 04763 , Republic of Korea
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier UMR 5253 CNRS, Université de Montpellier , Place E. Bataillon , 34095 Montpellier Cedex 05, France
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Tang H, Zhao Y, Shan S, Yang X, Liu D, Cui F, Xing B. Wrinkle- and Edge-Adsorption of Aromatic Compounds on Graphene Oxide as Revealed by Atomic Force Microscopy, Molecular Dynamics Simulation, and Density Functional Theory. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7689-7697. [PMID: 29929371 DOI: 10.1021/acs.est.8b00585] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, the favorable adsorption sites of aromatic compounds (ACs) on graphene oxide (GO) are characterized with both experimental and theoretical approaches. The results show that ACs exhibit a strong preference in adsorbing near the wrinkles and edges. Further analyses reveal that the edge-adsorption is mainly guided by the stronger π-π interaction near edges, accompanied by a stronger hydrogen bond interaction between carboxyl groups and ACs. Additionally, the water-mediated steric hindrance and flexibility of carboxyl groups also contribute to the edge-adsorption. A higher density of atoms and electrons is the main mechanism for the wrinkle-adsorption, and structural investigations indicate that the roughness serving as a steric hindrance for the ACs migration also contributes to the wrinkle-adsorption. This wrinkle- and edge-adsorption pattern will shed light on the design of GO-related environmental materials.
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Affiliation(s)
- Huan Tang
- Stockbridge School of Agriculture , University of Massachusetts , Amherst , Massachusetts 01003 , United States
| | | | | | | | | | - Fuyi Cui
- College of Urban Construction and Environmental Engineering , Chongqing University , Chongqing , 40045 , China
| | - Baoshan Xing
- Stockbridge School of Agriculture , University of Massachusetts , Amherst , Massachusetts 01003 , United States
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42
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Potentiometric Biosensing Applications of Graphene Electrodes with Stabilized Polymer Lipid Membranes. CHEMOSENSORS 2018. [DOI: 10.3390/chemosensors6030025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Bramini M, Alberini G, Colombo E, Chiacchiaretta M, DiFrancesco ML, Maya-Vetencourt JF, Maragliano L, Benfenati F, Cesca F. Interfacing Graphene-Based Materials With Neural Cells. Front Syst Neurosci 2018; 12:12. [PMID: 29695956 PMCID: PMC5904258 DOI: 10.3389/fnsys.2018.00012] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Accepted: 03/26/2018] [Indexed: 12/12/2022] Open
Abstract
The scientific community has witnessed an exponential increase in the applications of graphene and graphene-based materials in a wide range of fields, from engineering to electronics to biotechnologies and biomedical applications. For what concerns neuroscience, the interest raised by these materials is two-fold. On one side, nanosheets made of graphene or graphene derivatives (graphene oxide, or its reduced form) can be used as carriers for drug delivery. Here, an important aspect is to evaluate their toxicity, which strongly depends on flake composition, chemical functionalization and dimensions. On the other side, graphene can be exploited as a substrate for tissue engineering. In this case, conductivity is probably the most relevant amongst the various properties of the different graphene materials, as it may allow to instruct and interrogate neural networks, as well as to drive neural growth and differentiation, which holds a great potential in regenerative medicine. In this review, we try to give a comprehensive view of the accomplishments and new challenges of the field, as well as which in our view are the most exciting directions to take in the immediate future. These include the need to engineer multifunctional nanoparticles (NPs) able to cross the blood-brain-barrier to reach neural cells, and to achieve on-demand delivery of specific drugs. We describe the state-of-the-art in the use of graphene materials to engineer three-dimensional scaffolds to drive neuronal growth and regeneration in vivo, and the possibility of using graphene as a component of hybrid composites/multi-layer organic electronics devices. Last but not least, we address the need of an accurate theoretical modeling of the interface between graphene and biological material, by modeling the interaction of graphene with proteins and cell membranes at the nanoscale, and describing the physical mechanism(s) of charge transfer by which the various graphene materials can influence the excitability and physiology of neural cells.
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Affiliation(s)
- Mattia Bramini
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
| | - Giulio Alberini
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Department of Experimental Medicine, Università degli Studi di Genova, Genova, Italy
| | - Elisabetta Colombo
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
| | - Martina Chiacchiaretta
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Department of Experimental Medicine, Università degli Studi di Genova, Genova, Italy
| | - Mattia L DiFrancesco
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
| | - José F Maya-Vetencourt
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy
| | - Luca Maragliano
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy
| | - Fabio Benfenati
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy.,Department of Experimental Medicine, Università degli Studi di Genova, Genova, Italy
| | - Fabrizia Cesca
- Center for Synaptic Neuroscience and Technology, Istituto Italiano di Tecnologia, Genova, Italy.,Graphene Labs, Istituto Italiano di Tecnologia, Genova, Italy
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Lima LM, Arjmandi-Tash H, Schneider GF. Lateral Non-covalent Clamping of Graphene at the Edges Using a Lipid Scaffold. ACS APPLIED MATERIALS & INTERFACES 2018; 10:11328-11332. [PMID: 29513510 PMCID: PMC5887084 DOI: 10.1021/acsami.8b00916] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Accepted: 03/07/2018] [Indexed: 05/04/2023]
Abstract
Developing a clean handling and transfer process, capable of preserving the integrity of two-dimensional materials, is still a challenge. Here, we present a flexible, dynamic, and lipid-based scaffold that clamps graphene at the edges providing a practical, simple, and clean graphene manipulation and transfer method. Lipid films with different surface pressures are deposited at the air/copper-etchant interface immediately after placing the graphene samples. We show that at surface pressures above 30 mN/m, the lateral support prevents graphene movement and cracking during all etching and transfer. The method provides new insights into the handling of graphene and can yield efficient, sensitive, and clean graphene-based devices.
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Affiliation(s)
- Lia M.
C. Lima
- Faculty of Science, Leiden Institute
of Chemistry, Leiden University, Einsteinweg 55, 2333CC Leiden, The Netherlands
| | - Hadi Arjmandi-Tash
- Faculty of Science, Leiden Institute
of Chemistry, Leiden University, Einsteinweg 55, 2333CC Leiden, The Netherlands
| | - Grégory F. Schneider
- Faculty of Science, Leiden Institute
of Chemistry, Leiden University, Einsteinweg 55, 2333CC Leiden, The Netherlands
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45
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Black phosphorus with superior lithium ion batteries performance directly synthesized by the efficient thermal-vaporization method. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.01.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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46
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Kumar R, Urtizberea A, Ghosh S, Bog U, Rainer Q, Lenhert S, Fuchs H, Hirtz M. Polymer Pen Lithography with Lipids for Large-Area Gradient Patterns. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017. [PMID: 28650173 DOI: 10.1021/acs.langmuir.7b01368] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Gradient patterns comprising bioactive compounds over comparably (in regard to a cell size) large areas are key for many applications in the biomedical sector, in particular, for cell screening assays, guidance, and migration experiments. Polymer pen lithography (PPL) as an inherent highly parallel and large area technique has a great potential to serve in the fabrication of such patterns. We present strategies for the printing of functional phospholipid patterns via PPL that provide tunable feature size and feature density gradients over surface areas of several square millimeters. By controlling the printing parameters, two transfer modes can be achieved. Each of these modes leads to different feature morphologies. By increasing the force applied to the elastomeric pens, which increases the tip-surface contact area and boosts the ink delivery rate, a switch between a dip-pen nanolithography (DPN) and a microcontact printing (μCP) transfer mode can be induced. A careful inking procedure ensuring a homogeneous and not-too-high ink-load on the PPL stamp ensures a membrane-spreading dominated transfer mode, which, used in combination with smooth and hydrophilic substrates, generates features with constant height, independently of the applied force of the pens. Ultimately, this allows us to obtain a gradient of feature sizes over a mm2 substrate, all having the same height on the order of that of a biological cellular membrane. These strategies allow the construction of membrane structures by direct transfer of the lipid mixture to the substrate, without requiring previous substrate functionalization, in contrast to other molecular inks, where structure is directly determined by the printing process itself. The patterns are demonstrated to be viable for subsequent protein binding, therefore adding to a flexible feature library when gradients of protein presentation are desired.
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Affiliation(s)
- Ravi Kumar
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
- Physical Institute and Center for Nanotechnology (CeNTech), University of Münster , 48149 Münster, Germany
| | - Ainhoa Urtizberea
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
| | - Souvik Ghosh
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
- Sardar Vallabhbhai National Institute of Technology (SVNIT) , Surat, Gujarat 395007, India
| | - Uwe Bog
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
| | - Quinn Rainer
- Florida State Univ , Dept Biol Sci and Integrat NanoSci Inst, Tallahassee, Florida 32306 United States
| | - Steven Lenhert
- Florida State Univ , Dept Biol Sci and Integrat NanoSci Inst, Tallahassee, Florida 32306 United States
| | - Harald Fuchs
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
- Physical Institute and Center for Nanotechnology (CeNTech), University of Münster , 48149 Münster, Germany
| | - Michael Hirtz
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology (KIT) , 76131 Karlsruhe, Germany
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47
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Li M, Wang L, Putnis CV. Energetic Basis for Inhibition of Calcium Phosphate Biomineralization by Osteopontin. J Phys Chem B 2017; 121:5968-5976. [DOI: 10.1021/acs.jpcb.7b04163] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Meng Li
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Lijun Wang
- College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Christine V. Putnis
- Institut
für Mineralogie, University of Münster, 48149 Münster, Germany
- Department of Chemistry, Curtin University, Perth, Western Australia 6845, Australia
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