1
|
Péter B, Szekacs I, Horvath R. Label-free biomolecular and cellular methods in small molecule epigallocatechin-gallate research. Heliyon 2024; 10:e25603. [PMID: 38371993 PMCID: PMC10873674 DOI: 10.1016/j.heliyon.2024.e25603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 01/30/2024] [Accepted: 01/30/2024] [Indexed: 02/20/2024] Open
Abstract
Small molecule natural compounds are gaining popularity in biomedicine due to their easy access to wide structural diversity and their proven health benefits in several case studies. Affinity measurements of small molecules below 100 Da molecular weight in a label-free and automatized manner using small amounts of samples have now become a possibility and reviewed in the present work. We also highlight novel label-free setups with excellent time resolution, which is important for kinetic measurements of biomolecules and living cells. We summarize how molecular-scale affinity data can be obtained from the in-depth analysis of cellular kinetic signals. Unlike traditional measurements, label-free biosensors have made such measurements possible, even without the isolation of specific cellular receptors of interest. Throughout this review, we consider epigallocatechin gallate (EGCG) as an exemplary compound. EGCG, a catechin found in green tea, is a well-established anti-inflammatory and anti-cancer agent. It has undergone extensive examination in numerous studies, which typically rely on fluorescent-based methods to explore its effects on both healthy and tumor cells. The summarized research topics range from molecular interactions with proteins and biological films to the kinetics of cellular adhesion and movement on novel biomimetic interfaces in the presence of EGCG. While the direct impact of small molecules on living cells and biomolecules is relatively well investigated in the literature using traditional biological measurements, this review also highlights the indirect influence of these molecules on the cells by modifying their nano-environment. Moreover, we underscore the significance of novel high-throughput label-free techniques in small molecular measurements, facilitating the investigation of both molecular-scale interactions and cellular processes in one single experiment. This advancement opens the door to exploring more complex multicomponent models that were previously beyond the reach of traditional assays.
Collapse
Affiliation(s)
- Beatrix Péter
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33., 1121 Budapest, Hungary
| | - Inna Szekacs
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33., 1121 Budapest, Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory, Institute of Technical Physics and Materials Science, HUN-REN Centre for Energy Research, Konkoly-Thege M. út 29-33., 1121 Budapest, Hungary
| |
Collapse
|
2
|
Adamczyk Z, Sadowska M, Nattich-Rak M. Quantifying Nanoparticle Layer Topography: Theoretical Modeling and Atomic Force Microscopy Investigations. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15067-15077. [PMID: 37824293 PMCID: PMC10601541 DOI: 10.1021/acs.langmuir.3c02024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 09/14/2023] [Indexed: 10/14/2023]
Abstract
A comprehensive method consisting of theoretical modeling and experimental atomic force microscopy (AFM) measurements was developed for the quantitative analysis of nanoparticle layer topography. Analytical results were derived for particles of various shapes such as cylinders (rods), disks, ellipsoids, hemispheres (caps), etc. It was shown that for all particles, their root-mean-square (rms) parameter exhibited a maximum at the coverage about 0.5, whereas the skewness was a monotonically decreasing function of the coverage. This enabled a facile determination of the particle coverage in the layer, even if the shape and size were not known. The validity of the analytical results was confirmed by computer modeling and experimental data acquired by AFM measurements for polymer nanoparticle deposition on mica and silica. The topographical analysis developed in this work can be exploited for a quantitative characterization of self-assembled layers of nano- and bioparticles, e.g., carbon nanotubes, silica and noble metal particles, DNA fragments, proteins, vesicles, viruses, and bacteria at solid surfaces. The acquired results also enabled a proper calibration, in particular the determination of the measurement precision, of various electron and scanning probe microscopies, such as AFM.
Collapse
Affiliation(s)
- Zbigniew Adamczyk
- Jerzy Haber Institute of
Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Marta Sadowska
- Jerzy Haber Institute of
Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| | - Małgorzata Nattich-Rak
- Jerzy Haber Institute of
Catalysis and Surface Chemistry, Polish Academy of Sciences, Niezapominajek 8, 30-239 Krakow, Poland
| |
Collapse
|
3
|
Kovács KD, Novák M, Hajnal Z, Hős C, Szabó B, Székács I, Fang Y, Bonyár A, Horvath R. Label-free tracking of whole-cell response on RGD functionalized surfaces to varied flow velocities generated by fluidic rotation. J Colloid Interface Sci 2021; 599:620-630. [PMID: 33984760 DOI: 10.1016/j.jcis.2021.04.091] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/11/2021] [Accepted: 04/18/2021] [Indexed: 10/21/2022]
Abstract
Fluidic flow plays important roles in colloid and interface sciences. Measuring adsorption, aggregation processes and living cell behavior under a fluidic environment with varied flow velocities in a parallel and high-throughput manner remains to be a challenging task. Here a method is introduced to monitor cell response to well-defined flow with varied velocities over an array of label-free resonant waveguide grating (RWG) based optical biosensors. The arrangement consists of a circular well with an array of biosensors at the bottom surface. By rotating the liquid over the biosensor array using a magnetic stirrer bar, flow velocities from zero to a predefined maximum can be easily established over different locations within the biosensor array as characterized in detail by numerical simulations. Cell adhesion and detachment measurements on an Arg-Gly-Asp (RGD) peptide functionalized surface were performed to demonstrate i) measurements at a wide range of simultaneous flow velocities over the same interface; ii) the possibility of parallel measurements at the same flow conditions in one run; and iii) the simple tuning of the employed range of flow velocities. Our setup made it possible to analyze the magnitude and rate of cell detachment at various flow velocities in parallel and determine the critical velocity and force where cells start to detach from the RGD motif displaying biomimetic surface. Furthermore, cellular response to simultaneous mechanical (flow) and chemical stimulation was also investigated using trypsin as a model. This study opens a new possibility to investigate interface phenomena under predefined and conveniently varied flow conditions.
Collapse
Affiliation(s)
- Kinga Dóra Kovács
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary; Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Martin Novák
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Zoltán Hajnal
- Microsystems Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Csaba Hős
- Department of Hydrodynamic Systems, Budapest University of Technology and Economics, Budapest, Hungary
| | - Bálint Szabó
- Department of Biological Physics, Eötvös University, Budapest, Hungary
| | - Inna Székács
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary
| | - Ye Fang
- EIG New Programs, Corning Research and Development Corporation, Corning Incorporated, NY, USA
| | - Attila Bonyár
- Department of Electronics Technology, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, Budapest, Hungary.
| | - Robert Horvath
- Nanobiosensorics Laboratory, ELKH EK MFA, Budapest, Hungary.
| |
Collapse
|
4
|
Shinde A, Illath K, Gupta P, Shinde P, Lim KT, Nagai M, Santra TS. A Review of Single-Cell Adhesion Force Kinetics and Applications. Cells 2021; 10:577. [PMID: 33808043 PMCID: PMC8000588 DOI: 10.3390/cells10030577] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 02/06/2023] Open
Abstract
Cells exert, sense, and respond to the different physical forces through diverse mechanisms and translating them into biochemical signals. The adhesion of cells is crucial in various developmental functions, such as to maintain tissue morphogenesis and homeostasis and activate critical signaling pathways regulating survival, migration, gene expression, and differentiation. More importantly, any mutations of adhesion receptors can lead to developmental disorders and diseases. Thus, it is essential to understand the regulation of cell adhesion during development and its contribution to various conditions with the help of quantitative methods. The techniques involved in offering different functionalities such as surface imaging to detect forces present at the cell-matrix and deliver quantitative parameters will help characterize the changes for various diseases. Here, we have briefly reviewed single-cell mechanical properties for mechanotransduction studies using standard and recently developed techniques. This is used to functionalize from the measurement of cellular deformability to the quantification of the interaction forces generated by a cell and exerted on its surroundings at single-cell with attachment and detachment events. The adhesive force measurement for single-cell microorganisms and single-molecules is emphasized as well. This focused review should be useful in laying out experiments which would bring the method to a broader range of research in the future.
Collapse
Affiliation(s)
- Ashwini Shinde
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India; (A.S.); (K.I.); (P.G.); (P.S.)
| | - Kavitha Illath
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India; (A.S.); (K.I.); (P.G.); (P.S.)
| | - Pallavi Gupta
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India; (A.S.); (K.I.); (P.G.); (P.S.)
| | - Pallavi Shinde
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India; (A.S.); (K.I.); (P.G.); (P.S.)
| | - Ki-Taek Lim
- Department of Biosystems Engineering, Kangwon National University, Chuncheon-Si, Gangwon-Do 24341, Korea;
| | - Moeto Nagai
- Department of Mechanical Engineering, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan;
| | - Tuhin Subhra Santra
- Department of Engineering Design, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India; (A.S.); (K.I.); (P.G.); (P.S.)
| |
Collapse
|
5
|
Gauglitz G. Critical assessment of relevant methods in the field of biosensors with direct optical detection based on fibers and waveguides using plasmonic, resonance, and interference effects. Anal Bioanal Chem 2020; 412:3317-3349. [PMID: 32313998 PMCID: PMC7214504 DOI: 10.1007/s00216-020-02581-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/28/2020] [Accepted: 03/04/2020] [Indexed: 12/16/2022]
Abstract
Direct optical detection has proven to be a highly interesting tool in biomolecular interaction analysis to be used in drug discovery, ligand/receptor interactions, environmental analysis, clinical diagnostics, screening of large data volumes in immunology, cancer therapy, or personalized medicine. In this review, the fundamental optical principles and applications are reviewed. Devices are based on concepts such as refractometry, evanescent field, waveguides modes, reflectometry, resonance and/or interference. They are realized in ring resonators; prism couplers; surface plasmon resonance; resonant mirror; Bragg grating; grating couplers; photonic crystals, Mach-Zehnder, Young, Hartman interferometers; backscattering; ellipsometry; or reflectance interferometry. The physical theories of various optical principles have already been reviewed in detail elsewhere and are therefore only cited. This review provides an overall survey on the application of these methods in direct optical biosensing. The "historical" development of the main principles is given to understand the various, and sometimes only slightly modified variations published as "new" methods or the use of a new acronym and commercialization by different companies. Improvement of optics is only one way to increase the quality of biosensors. Additional essential aspects are the surface modification of transducers, immobilization strategies, selection of recognition elements, the influence of non-specific interaction, selectivity, and sensitivity. Furthermore, papers use for reporting minimal amounts of detectable analyte terms such as value of mass, moles, grams, or mol/L which are difficult to compare. Both these essential aspects (i.e., biochemistry and the presentation of LOD values) can be discussed only in brief (but references are provided) in order to prevent the paper from becoming too long. The review will concentrate on a comparison of the optical methods, their application, and the resulting bioanalytical quality.
Collapse
Affiliation(s)
- Günter Gauglitz
- Institute of Physical and Theoretical Chemistry, Eberhard Karls Universität, Auf der Morgenstelle 18, 72076, Tübingen, Germany.
| |
Collapse
|
6
|
Kobolák J, Molnár K, Varga E, Bock I, Jezsó B, Téglási A, Zhou S, Lo Giudice M, Hoogeveen-Westerveld M, Pijnappel WP, Phanthong P, Varga N, Kitiyanant N, Freude K, Nakanishi H, László L, Hyttel P, Dinnyés A. Modelling the neuropathology of lysosomal storage disorders through disease-specific human induced pluripotent stem cells. Exp Cell Res 2019; 380:216-233. [PMID: 31039347 DOI: 10.1016/j.yexcr.2019.04.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/12/2019] [Accepted: 04/17/2019] [Indexed: 12/15/2022]
Abstract
Mucopolysaccharidosis II (MPS II) is a lysosomal storage disorder (LSD), caused by iduronate 2-sulphatase (IDS) enzyme dysfunction. The neuropathology of the disease is not well understood, although the neural symptoms are currently incurable. MPS II-patient derived iPSC lines were established and differentiated to neuronal lineage. The disease phenotype was confirmed by IDS enzyme and glycosaminoglycan assay. MPS II neuronal precursor cells (NPCs) showed significantly decreased self-renewal capacity, while their cortical neuronal differentiation potential was not affected. Major structural alterations in the ER and Golgi complex, accumulation of storage vacuoles, and increased apoptosis were observed both at protein expression and ultrastructural level in the MPS II neuronal cells, which was more pronounced in GFAP + astrocytes, with increased LAMP2 expression but unchanged in their RAB7 compartment. Based on these finding we hypothesize that lysosomal membrane protein (LMP) carrier vesicles have an initiating role in the formation of storage vacuoles leading to impaired lysosomal function. In conclusion, a novel human MPS II disease model was established for the first time which recapitulates the in vitro neuropathology of the disorder, providing novel information on the disease mechanism which allows better understanding of further lysosomal storage disorders and facilitates drug testing and gene therapy approaches.
Collapse
Affiliation(s)
| | - Kinga Molnár
- Department of Anatomy, Cell and Developmental Biology, Eötvös Loránd University, Budapest, 1117, Hungary
| | | | | | - Bálint Jezsó
- Department of Anatomy, Cell and Developmental Biology, Eötvös Loránd University, Budapest, 1117, Hungary
| | | | - Shuling Zhou
- BioTalentum Ltd., Gödöllő, 2100, Hungary; Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870, Copenhagen, Denmark
| | | | | | - Wwm Pim Pijnappel
- Department of Clinical Genetics, Erasmus MC Rotterdam, 3015 CN, Rotterdam, the Netherlands
| | - Phetcharat Phanthong
- BioTalentum Ltd., Gödöllő, 2100, Hungary; Institute of Molecular Biosciences, Mahidol University, Bangkok, 73170, Thailand
| | - Norbert Varga
- Department of Metabolic Diseases, Heim Pál Children's Hospital, Budapest, 1089, Hungary
| | - Narisorn Kitiyanant
- Institute of Molecular Biosciences, Mahidol University, Bangkok, 73170, Thailand
| | - Kristine Freude
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870, Copenhagen, Denmark
| | - Hideyuki Nakanishi
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Kyoto, 606-8585, Japan
| | - Lajos László
- Department of Anatomy, Cell and Developmental Biology, Eötvös Loránd University, Budapest, 1117, Hungary
| | - Poul Hyttel
- Department of Veterinary Clinical and Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, 1870, Copenhagen, Denmark
| | - András Dinnyés
- BioTalentum Ltd., Gödöllő, 2100, Hungary; Molecular Animal Biotechnology Laboratory, Szent István University, Gödöllő, 2101, Hungary.
| |
Collapse
|
7
|
Peter B, Lagzi I, Teraji S, Nakanishi H, Cervenak L, Zámbó D, Deák A, Molnár K, Truszka M, Szekacs I, Horvath R. Interaction of Positively Charged Gold Nanoparticles with Cancer Cells Monitored by an in Situ Label-Free Optical Biosensor and Transmission Electron Microscopy. ACS APPLIED MATERIALS & INTERFACES 2018; 10:26841-26850. [PMID: 30022664 DOI: 10.1021/acsami.8b01546] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Functionalized nanoparticles (NPs) can penetrate into living cells and vesicles, opening up an extensive range of novel directions. For example, NPs are intensively employed in targeted drug delivery and biomedical imaging. However, the real-time kinetics and dynamics of NP-living cell interactions remained uncovered. In this study, we in situ monitored the cellular uptake of gold NPs-functionalized with positively charged alkaline thiol-into surface-adhered cancer cells, by using a high-throughput label-free optical biosensor employing resonant waveguide gratings. The characteristic kinetic curves upon NP exposure of cell-coated biosensor surfaces were recorded and compared to the kinetics of NP adsorption onto bare sensor surfaces. We demonstrated that from the above kinetic information, one can conclude about the interactions between the living cells and the NPs. Real-time biosensor data suggested the cellular uptake of the functionalized NPs by an active process. It was found that positively charged particles penetrate into the cells more effectively than negatively charged control particles, and the optimal size for the cellular uptake of the positively charged particles is around 5 nm. These conclusions were obtained in a cost-effective, fast, and high-throughput manner. The fate of the NPs was further revealed by electron microscopy on NP-exposed and subsequently fixed cells, well confirming the results obtained by the biosensor. Moreover, an ultrastructural study demonstrated the involvement of the endosomal-lysosomal system in the uptake of functionalized NPs and suggested the type of the internalization pathway.
Collapse
Affiliation(s)
| | - Istvan Lagzi
- Department of Physics , Budapest University of Technology and Economics , Budafoki út 8 , Budapest H-1111 , Hungary
- MTA-BME Condensed Matter Research Group , Budafoki út 8 , Budapest H-1111 , Hungary
| | - Satoshi Teraji
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology , Kyoto Institute of Technology , Matsugasaki , Kyoto 606-8585 , Japan
| | - Hideyuki Nakanishi
- Department of Macromolecular Science and Engineering, Graduate School of Science and Technology , Kyoto Institute of Technology , Matsugasaki , Kyoto 606-8585 , Japan
| | - Laszlo Cervenak
- Research Laboratory, 3rd Department of Medicine , Semmelweis University , H-1085 Budapest , Hungary
- Research Group of Immunology and Hematology , Hungarian Academy of Science , Kútvölgyi út 4. , H-1125 Budapest , Hungary
| | | | | | - Kinga Molnár
- Department of Anatomy, Cell and Developmental Biology , Eötvös Loránd University , Pázmány Péter stny. 1/C , H-1117 Budapest , Hungary
| | - Monika Truszka
- Department of Anatomy, Cell and Developmental Biology , Eötvös Loránd University , Pázmány Péter stny. 1/C , H-1117 Budapest , Hungary
| | | | | |
Collapse
|
8
|
Peter B, Farkas E, Forgacs E, Saftics A, Kovacs B, Kurunczi S, Szekacs I, Csampai A, Bosze S, Horvath R. Green tea polyphenol tailors cell adhesivity of RGD displaying surfaces: multicomponent models monitored optically. Sci Rep 2017; 7:42220. [PMID: 28186133 PMCID: PMC5301484 DOI: 10.1038/srep42220] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 01/03/2017] [Indexed: 01/17/2023] Open
Abstract
The interaction of the anti-adhesive coating, poly(L-lysine)-graft-poly(ethylene glycol) (PLL-g-PEG) and its Arg-Gly-Asp (RGD) functionalized form, PLL-g-PEG-RGD, with the green tea polyphenol, epigallocatechin-gallate (EGCg) was in situ monitored. After, the kinetics of cellular adhesion on the EGCg exposed coatings were recorded in real-time. The employed plate-based waveguide biosensor is applicable to monitor small molecule binding and sensitive to sub-nanometer scale changes in cell membrane position and cell mass distribution; while detecting the signals of thousands of adhering cells. The combination of this remarkable sensitivity and throughput opens up new avenues in testing complicated models of cell-surface interactions. The systematic studies revealed that, despite the reported excellent antifouling properties of the coatings, EGCg strongly interacted with them, and affected their cell adhesivity in a concentration dependent manner. Moreover, the differences between the effects of the fresh and oxidized EGCg solutions were first demonstrated. Using a semiempirical quantumchemical method we showed that EGCg binds to the PEG chains of PLL-g-PEG-RGD and effectively blocks the RGD sites by hydrogen bonds. The calculations supported the experimental finding that the binding is stronger for the oxidative products. Our work lead to a new model of polyphenol action on cell adhesion ligand accessibility and matrix rigidity.
Collapse
Affiliation(s)
- Beatrix Peter
- Doctoral School of Molecular and Nanotechnologies, Faculty of Information Technology, University of Pannonia, H-8200 Egyetem u. 10, Veszprém, Hungary
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Eniko Farkas
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
- Chemical Engineering and Material Science Doctoral School, University of Pannonia, H-8200 Egyetem u, 10, Veszprém, Hungary
| | - Eniko Forgacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Andras Saftics
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
- George Olah Doctoral School, Faculty of Chemical Technology and Biotechnology, Budapest University of Technology and Economics, Műegyetem rkp. 3, Budapest 1111, Hungary
| | - Boglarka Kovacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
- Chemical Engineering and Material Science Doctoral School, University of Pannonia, H-8200 Egyetem u, 10, Veszprém, Hungary
| | - Sandor Kurunczi
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Inna Szekacs
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| | - Antal Csampai
- Institute of Chemistry, Eötvös Loránd University, Budapest 112, POB 32, H-1518, Hungary
| | - Szilvia Bosze
- MTA-ELTE Research Group of Peptide Chemistry, Hungarian Academy of Sciences, Eötvös Loránd University, Budapest 112, POB 32, H-1518, Hungary
| | - Robert Horvath
- Nanobiosensorics Group, Hungarian Academy of Sciences, Research Centre for Natural Sciences, Institute for Technical Physics and Materials Science, Konkoly-Thege u, 29-33, H-1120 Budapest, Hungary
| |
Collapse
|
9
|
Farkas E, Patko D, Khanh NQ, Toth E, Vonderviszt F, Horvath R. Self-assembly and structure of flagellin–polyelectrolyte composite layers: polyelectrolyte induced flagellar filament formation during the alternating deposition process. RSC Adv 2016. [DOI: 10.1039/c6ra19010c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This study first reveals a new type of linearly growing polyelectrolyte multilayer buildup mechanism, when one of the components (PAH) induces the self-assembly of the oppositely charged component (flagellin), creating a filamentous nanostructured coating.
Collapse
Affiliation(s)
- Eniko Farkas
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Daniel Patko
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Nguyen Quoc Khanh
- MEMS Laboratory
- Institute for Technical Physics and Materials Science
- Microtechnology Group
- MTA EK MFA
- Budapest
| | - Eva Toth
- Doctoral School of Molecular and Nanotechnologies
- Faculty of Information Technology
- University of Pannonia
- Hungary
- Bio-Nanosystems Laboratory
| | - Ferenc Vonderviszt
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory
- Institute for Technical Physics and Materials Science
- MTA EK MFA
- Budapest
- Hungary
| |
Collapse
|