1
|
Akcali P, Kelleci K, Ozer S. Design and Simulation of the Microcantilever Biosensor for MITF Antigen and D5 Monoclonal Antibody Interaction Finite Element Analysis, and Experimental. Curr Protein Pept Sci 2024; 25:256-266. [PMID: 37921167 DOI: 10.2174/0113892037259122231013153546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 09/05/2023] [Accepted: 09/08/2023] [Indexed: 11/04/2023]
Abstract
BACKGROUND Biosensors and MEMS have witnessed rapid development and enormous interest over the past decades. Constant advancement in diagnostic, medical, and chemical applications has been demonstrated in several platforms and tools. In this study, the analytical and FEA of the microcantilever used in biomolecular analyses were compared with the experimental analysis results. METHODS In this study, MITF antigen, which is a melanoma biomarker, and anti-MITF antibody (D5) were selected as biomolecules. A MEMS-type microcantilever biosensor was designed by functionalizing the AFM cantilever by utilizing the specific interaction dynamics and intermolecular binding ability between both molecules. Surface functionalization of cantilever micro biosensors was performed by using FEA. The stress that will occur as a result of the interactions between the MITF-D5 has been determined from the deviation in the resonant frequency of the cantilever. RESULTS It has been found that the simulation results are supported by analytical calculations and experimental results. CONCLUSION The fact that the results of the simulation study overlap with the experimental and mathematical results allows us to get much cheaper and faster answers compared to expensive and time-consuming experimental approaches.
Collapse
Affiliation(s)
- Pelin Akcali
- Department of Biomedical Engineering, Istanbul Yeniyuzyil University, 34010, Istanbul, Turkey
| | - Kübra Kelleci
- Department of Medical Services and Techniques, Beykoz Vocational School of Logistics, Istanbul, Turkey
| | - Sevil Ozer
- Department of Biomedical Engineering, Istanbul Yeniyuzyil University, 34010, Istanbul, Turkey
| |
Collapse
|
2
|
Anthi J, Vaněčková E, Spasovová M, Houska M, Vrabcová M, Vogelová E, Holubová B, Vaisocherová-Lísalová H, Kolivoška V. Probing charge transfer through antifouling polymer brushes by electrochemical methods: The impact of supporting self-assembled monolayer chain length. Anal Chim Acta 2023; 1276:341640. [PMID: 37573118 DOI: 10.1016/j.aca.2023.341640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 08/14/2023]
Abstract
Ultrathin surface-tethered polymer brushes represent attractive platforms for a wide range of sensing applications in strategically vital areas such as medicine, forensics, or security. The recent trends in such developments towards "real world conditions" highlighted the role of zwitterionic poly(carboxybetaine) (pCB) brushes which provide excellent antifouling properties combined with bio-functionalization capacity. Highly dense pCB brushes are usually prepared by the "grafting from" polymerization triggered by initiators on self-assembled monolayers (SAMs). Here, multi-methodological experimental studies are pursued to elucidate the impact of the alkanethiolate SAM chain length (C6, C8 and C11) on structural and functional properties of antifouling poly(carboxybetaine methacrylamide) (pCBMAA) brush. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in a custom-made 3D printed cell employing [Ru(NH3)6]3+/2+ redox probe were used to investigate penetrability of SAM/pCBMAA bilayers for small molecules and interfacial charge transfer characteristics. The biofouling resistance of pCBMAA brushes was characterized by surface plasmon resonance; ellipsometry and FT-IRRAS spectroscopy were used to determine swelling and relative density of the brushes synthesized from initiator-bearing SAMs with varied carbon chain length. The SAM length was found to have a substantial impact on all studied characteristics; the highest value of charge transfer resistance (Rct) was observed for denser pCBMAA on longer-chain (C11) SAM when compared to shorter (C8/C6) SAMs. The observed high value of Rct for C11 implies a limitation for the analytical performance of electrochemical sensing methods. At the same time, the pCBMAA brushes on C11 SAM exhibited the best bio-fouling resistance among inspected systems. This demonstrates that proper selection of supporting structures for brushes is critical in the design of these assemblies for biosensing applications.
Collapse
Affiliation(s)
- Judita Anthi
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic; Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, 166 28, Prague, Czech Republic
| | - Eva Vaněčková
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23, Prague, Czech Republic
| | - Monika Spasovová
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic
| | - Milan Houska
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic
| | - Markéta Vrabcová
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic
| | - Eva Vogelová
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic
| | - Barbora Holubová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, 166 28, Prague, Czech Republic
| | - Hana Vaisocherová-Lísalová
- FZU - Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 00, Prague, Czech Republic.
| | - Viliam Kolivoška
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23, Prague, Czech Republic.
| |
Collapse
|
3
|
Besford QA, Merlitz H, Schubotz S, Yong H, Chae S, Schnepf MJ, Weiss ACG, Auernhammer GK, Sommer JU, Uhlmann P, Fery A. Mechanofluorescent Polymer Brush Surfaces that Spatially Resolve Surface Solvation. ACS NANO 2022; 16:3383-3393. [PMID: 35112848 DOI: 10.1021/acsnano.2c00277] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Polymer brushes, consisting of densely end-tethered polymers to a surface, can exhibit rapid and sharp conformational transitions due to specific stimuli, which offer intriguing possibilities for surface-based sensing of the stimuli. The key toward unlocking these possibilities is the development of methods to readily transduce signals from polymer conformational changes. Herein, we report on single-fluorophore integrated ultrathin (<40 nm) polymer brush surfaces that exhibit changing fluorescence properties based on polymer conformation. The basis of our methods is the change in occupied volume as the polymer brush undergoes a collapse transition, which enhances the effective concentration and aggregation of the integrated fluorophores, leading to a self-quenching of the fluorophores' fluorescence and thereby reduced fluorescence lifetimes. By using fluorescence lifetime imaging microscopy, we reveal spatial details on polymer brush conformational transitions across complex interfaces, including at the air-water-solid interface and at the interface of immiscible liquids that solvate the surface. Furthermore, our method identifies the swelling of polymer brushes from outside of a direct droplet (i.e., the polymer phase with vapor above), which is controlled by humidity. These solvation-sensitive surfaces offer a strong potential for surface-based sensing of stimuli-induced phase transitions of polymer brushes with spatially resolved output in high resolution.
Collapse
Affiliation(s)
- Quinn A Besford
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Holger Merlitz
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Simon Schubotz
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Huaisong Yong
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Soosang Chae
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Max J Schnepf
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Alessia C G Weiss
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | | | - Jens-Uwe Sommer
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
- Institute for Theoretical Physics, Technische Universität Dresden, 01069 Dresden, Germany
| | - Petra Uhlmann
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
| | - Andreas Fery
- Leibniz-Institut für Polymerforschung e.V., Hohe Str. 6, 01069 Dresden, Germany
- Technische Universität Dresden, Helmholtzstraße 10, 01062 Dresden, Germany
| |
Collapse
|
4
|
Forinová M, Pilipenco A, Víšová I, Lynn NS, Dostálek J, Mašková H, Hönig V, Palus M, Selinger M, Kočová P, Dyčka F, Štěrba J, Houska M, Vrabcová M, Horák P, Anthi J, Tung CP, Yu CM, Chen CY, Huang YC, Tsai PH, Lin SY, Hsu HJ, Yang AS, Dejneka A, Vaisocherová-Lísalová H. Functionalized Terpolymer-Brush-Based Biointerface with Improved Antifouling Properties for Ultra-Sensitive Direct Detection of Virus in Crude Clinical Samples. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60612-60624. [PMID: 34902239 DOI: 10.1021/acsami.1c16930] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
New analytical techniques that overcome major drawbacks of current routinely used viral infection diagnosis methods, i.e., the long analysis time and laboriousness of real-time reverse-transcription polymerase chain reaction (qRT-PCR) and the insufficient sensitivity of "antigen tests", are urgently needed in the context of SARS-CoV-2 and other highly contagious viruses. Here, we report on an antifouling terpolymer-brush biointerface that enables the rapid and sensitive detection of SARS-CoV-2 in untreated clinical samples. The developed biointerface carries a tailored composition of zwitterionic and non-ionic moieties and allows for the significant improvement of antifouling capabilities when postmodified with biorecognition elements and exposed to complex media. When deployed on a surface of piezoelectric sensor and postmodified with human-cell-expressed antibodies specific to the nucleocapsid (N) protein of SARS-CoV-2, it made possible the quantitative analysis of untreated samples by a direct detection assay format without the need of additional amplification steps. Natively occurring N-protein-vRNA complexes, usually disrupted during the sample pre-treatment steps, were detected in the untreated clinical samples. This biosensor design improved the bioassay sensitivity to a clinically relevant limit of detection of 1.3 × 104 PFU/mL within a detection time of only 20 min. The high specificity toward N-protein-vRNA complexes was validated both by mass spectrometry and qRT-PCR. The performance characteristics were confirmed by qRT-PCR through a comparative study using a set of clinical nasopharyngeal swab samples. We further demonstrate the extraordinary fouling resistance of this biointerface through exposure to other commonly used crude biological samples (including blood plasma, oropharyngeal, stool, and nasopharyngeal swabs), measured via both the surface plasmon resonance and piezoelectric measurements, which highlights the potential to serve as a generic platform for a wide range of biosensing applications.
Collapse
Affiliation(s)
- Michala Forinová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Alina Pilipenco
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Ivana Víšová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - N Scott Lynn
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Jakub Dostálek
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
- Austrian Institute of Technology GmbH, Konrad-Lorenz-Strasse 24, 3430 Tulln, Austria
| | - Hana Mašková
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Václav Hönig
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Martin Palus
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
- Veterinary Research Institute, Hudcova 70, 621 00 Brno, Czech Republic
| | - Martin Selinger
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
- Institute of Parasitology, Biology Centre CAS, Branišovská 31, 370 05 České Budějovice, Czech Republic
| | - Pavlína Kočová
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Filip Dyčka
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Jan Štěrba
- Faculty of Science, University of South Bohemia, Branišovská 31a, 370 05 České Budějovice, Czech Republic
| | - Milan Houska
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Markéta Vrabcová
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Petr Horák
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Judita Anthi
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | - Chao-Ping Tung
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Chung-Ming Yu
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Chi-Yung Chen
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Yu-Chuan Huang
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Pei-Hsun Tsai
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Szu-Yu Lin
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Hung-Ju Hsu
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - An-Suei Yang
- Genomics Research Center, Academia Sinica, 128 Academia Rd., Sec.2, Nankang Dist., Taipei 115, Taiwan
| | - Alexandr Dejneka
- Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague, Czech Republic
| | | |
Collapse
|
5
|
Anthi J, Kolivoška V, Holubová B, Vaisocherová-Lísalová H. Probing polymer brushes with electrochemical impedance spectroscopy: a mini review. Biomater Sci 2021; 9:7379-7391. [PMID: 34693954 DOI: 10.1039/d1bm01330k] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Polymer brushes are frequently used as surface-tethered antifouling layers in biosensors to improve sensor surface-analyte recognition in the presence of abundant non-target molecules in complex biological samples by suppressing nonspecific interactions. However, because brushes are complex systems highly responsive to changes in their surrounding environment, studying their properties remains a challenge. Electrochemical impedance spectroscopy (EIS) is an emerging method in this context. In this mini review, we aim to elucidate the potential of EIS for investigating the physicochemical properties and structural aspects of polymer brushes. The application of EIS in brush-based biosensors is also discussed. Most common principles employed in these biosensors are presented, as well as interpretation of EIS data obtained in such setups. Overall, we demonstrate that the EIS-polymer brush pairing has a considerable potential for providing new insights into brush functionalities and designing highly sensitive and specific biosensors.
Collapse
Affiliation(s)
- Judita Anthi
- Institute of Physics of the CAS, Na Slovance 2, 182 21 Prague, Czech Republic. .,Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, 16628 Prague, Czech Republic
| | - Viliam Kolivoška
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Dolejškova 3, 182 23 Prague, Czech Republic.
| | - Barbora Holubová
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 3, 16628 Prague, Czech Republic
| | | |
Collapse
|
6
|
Víšová I, Smolková B, Uzhytchak M, Vrabcová M, Chafai DE, Houska M, Pastucha M, Skládal P, Farka Z, Dejneka A, Vaisocherová-Lísalová H. Functionalizable Antifouling Coatings as Tunable Platforms for the Stress-Driven Manipulation of Living Cell Machinery. Biomolecules 2020; 10:biom10081146. [PMID: 32764330 PMCID: PMC7464033 DOI: 10.3390/biom10081146] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 02/07/2023] Open
Abstract
Cells are continuously sensing their microenvironment and subsequently respond to different physicochemical cues by the activation or inhibition of different signaling pathways. To study a very complex cellular response, it is necessary to diminish background environmental influences and highlight the particular event. However, surface-driven nonspecific interactions of the abundant biomolecules from the environment influence the targeted cell response significantly. Yes-associated protein (YAP) translocation may serve as a marker of human hepatocellular carcinoma (Huh7) cell responses to the extracellular matrix and surface-mediated stresses. Here, we propose a platform of tunable functionable antifouling poly(carboxybetain) (pCB)-based brushes to achieve a molecularly clean background for studying arginine, glycine, and aspartic acid (RGD)-induced YAP-connected mechanotransduction. Using two different sets of RGD-functionalized zwitterionic antifouling coatings with varying compositions of the antifouling layer, a clear correlation of YAP distribution with RGD functionalization concentrations was observed. On the other hand, commonly used surface passivation by the oligo(ethylene glycol)-based self-assembled monolayer (SAM) shows no potential to induce dependency of the YAP distribution on RGD concentrations. The results indicate that the antifouling background is a crucial component of surface-based cellular response studies, and pCB-based zwitterionic antifouling brush architectures may serve as a potential next-generation easily functionable surface platform for the monitoring and quantification of cellular processes.
Collapse
Affiliation(s)
- Ivana Víšová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Barbora Smolková
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Mariia Uzhytchak
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Markéta Vrabcová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Djamel Eddine Chafai
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Milan Houska
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Matěj Pastucha
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
| | - Petr Skládal
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
| | - Zdeněk Farka
- Department of Biochemistry, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; (M.P.); (P.S.)
- Correspondence: (Z.F.); (H.V.-L.); Tel.: +420-549497674 (Z.F.); +420-266052993 (H.V.-L.)
| | - Alexandr Dejneka
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
| | - Hana Vaisocherová-Lísalová
- Institute of Physics CAS, Na Slovance 1999/2, 182 21 Prague, Czech Republic; (I.V.); (B.S.); (M.U.); (M.V.); (D.E.C.); (M.H.); (A.D.)
- Correspondence: (Z.F.); (H.V.-L.); Tel.: +420-549497674 (Z.F.); +420-266052993 (H.V.-L.)
| |
Collapse
|
7
|
Víšová I, Vrabcová M, Forinová M, Zhigunová Y, Mironov V, Houska M, Bittrich E, Eichhorn KJ, Hashim H, Schovánek P, Dejneka A, Vaisocherová-Lísalová H. Surface Preconditioning Influences the Antifouling Capabilities of Zwitterionic and Nonionic Polymer Brushes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:8485-8493. [PMID: 32506911 DOI: 10.1021/acs.langmuir.0c00996] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Polymer brushes not only represent emerging surface platforms for numerous bioanalytical and biological applications but also create advanced surface-tethered systems to mimic real-life biological processes. In particular, zwitterionic and nonionic polymer brushes have been intensively studied because of their extraordinary resistance to nonspecific adsorption of biomolecules (antifouling characteristics) as well as the ability to be functionalized with bioactive molecules. However, the relation between antifouling behavior in real-world biological media and structural changes of polymer brushes induced by surface preconditioning in different environments remains unexplored. In this work, we use multiple methods to study the structural properties of numerous brushes under variable ionic concentrations and determine the impact of these changes on resistance to fouling from undiluted blood plasma. We describe different mechanisms of swelling, depending on both the polymer brush coating properties and the environmental conditions that affect changes in both hydration levels and thickness. Using both fluorescent and surface plasmon resonance methods, we found that the antifouling behavior of these brushes is strongly dependent on the aforementioned structural changes. Moreover, preconditioning of the brush coatings (incubation at a variable salt concentration or drying) prior to biomolecule interaction may significantly improve the antifouling performance. These results suggest a new simple approach to improve the antifouling behavior of polymer brushes. In addition, the results herein enhance the understanding for improved design of antifouling and bioresponsive brushes employed in biosensor and biomimetic applications.
Collapse
Affiliation(s)
- Ivana Víšová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Markéta Vrabcová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Michala Forinová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Yulia Zhigunová
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Vasilii Mironov
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Milan Houska
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | - Eva Bittrich
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, Dresden 01069, Germany
| | - Klaus-Jochen Eichhorn
- Leibniz-Institut für Polymerforschung Dresden e.V., Hohe Str. 6, Dresden 01069, Germany
| | - Hisham Hashim
- National University of Science and Technology (MISIS), Leninskiy prospekt 2, Moscow 119049, Russia
- Faculty of Science, Tanta University, Al-Geish Street, Tanta 31527, Egypt
| | - Petr Schovánek
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
- Palacký University Olomouc, 17. listopadu 12, Olomouc 77146, Czech Republic
| | - Alexandr Dejneka
- FZU-Institute of Physics of the Czech Academy of Sciences, Na Slovance 1, Prague 182 21, Czech Republic
| | | |
Collapse
|
8
|
Chawathe M, Asheghali D, Minko S, Jonnalagadda S, Sidorenko A. Adaptive Hybrid Molecular Brushes Composed of Chitosan, Polylactide, and Poly(N-vinyl pyrrolidone) for Support and Guiding Human Dermal Fibroblasts. ACS APPLIED BIO MATERIALS 2020; 3:4118-4127. [DOI: 10.1021/acsabm.0c00217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manasi Chawathe
- Department of Pharmaceutical Sciences, University of the Sciences, Philadelphia, Pennsylvania 19104, United States
| | - Darya Asheghali
- Nanostructured Materials Lab, University of Georgia, Athens, Georgia 30602, United States
| | - Sergiy Minko
- Nanostructured Materials Lab, University of Georgia, Athens, Georgia 30602, United States
| | - Sriramakamal Jonnalagadda
- Department of Pharmaceutical Sciences, University of the Sciences, Philadelphia, Pennsylvania 19104, United States
| | - Alexander Sidorenko
- Department of Chemistry & Biochemistry, University of the Sciences, Philadelphia, Pennsylvania 19104, United States
| |
Collapse
|
9
|
Słowikowska M, Wolski K, Wójcik AJ, Wesner D, Schönherr H, Zapotoczny S. Unraveling the nanomechanical properties of surface-grafted conjugated polymer brushes with ladder-like architecture. Polym Chem 2020. [DOI: 10.1039/d0py01422b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Surface-grafted polymer brushes with ladder-like architecture enforce extended conformation of the chains affecting their mechanical and tribological properties.
Collapse
Affiliation(s)
| | - Karol Wolski
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Krakow
- Poland
| | - Artur J. Wójcik
- Faculty of Chemistry
- Jagiellonian University
- 30-387 Krakow
- Poland
| | - Daniel Wesner
- Physical Chemistry I & Research Center of Micro and Nanochemistry and Engineering (Cμ)
- Department of Chemistry and Biology
- School of Science and Technology
- University of Siegen
- 57076 Siegen
| | - Holger Schönherr
- Physical Chemistry I & Research Center of Micro and Nanochemistry and Engineering (Cμ)
- Department of Chemistry and Biology
- School of Science and Technology
- University of Siegen
- 57076 Siegen
| | | |
Collapse
|