1
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Prüßner T, Meinderink D, Zhu S, Orive AG, Kielar C, Huck M, Steinrück HG, Keller A, Grundmeier G. Molecular Adhesion of a Pilus-Derived Peptide Involved in Pseudomonas aeruginosa Biofilm Formation on Non-Polar ZnO-Surfaces. Chemistry 2024; 30:e202302464. [PMID: 37909474 DOI: 10.1002/chem.202302464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 11/03/2023]
Abstract
Bacterial colonization and biofilm formation on abiotic surfaces are initiated by the adhesion of peptides and proteins. Understanding the adhesion of such peptides and proteins at a molecular level thus represents an important step toward controlling and suppressing biofilm formation on technological and medical materials. This study investigates the molecular adhesion of a pilus-derived peptide that facilitates biofilm formation of Pseudomonas aeruginosa, a multidrug-resistant opportunistic pathogen frequently encountered in healthcare settings. Single-molecule force spectroscopy (SMFS) was performed on chemically etched ZnO11 2 ‾ 0 ${\left(11\bar{2}0\right)}$ surfaces to gather insights about peptide adsorption force and its kinetics. Metal-free click chemistry for the fabrication of peptide-terminated SMFS cantilevers was performed on amine-terminated gold cantilevers and verified by X-ray photoelectron spectroscopy (XPS) and polarization-modulated infrared reflection absorption spectroscopy (PM-IRRAS). Atomic force microscopy (AFM) and XPS analyses reveal stable topographies and surface chemistries of the substrates that are not affected by SMFS. Rupture events described by the worm-like chain model (WLC) up to 600 pN were detected for the non-polar ZnO surfaces. The dissociation barrier energy at zero force ΔG(0), the transition state distance xb and bound-unbound dissociation rate at zero force koff (0) for the single crystalline substrate indicate that coordination and hydrogen bonds dominate the peptide/surface interaction.
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Affiliation(s)
- Tim Prüßner
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Dennis Meinderink
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Siqi Zhu
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Alejandro G Orive
- Department of Chemistry, Materials and Nanotechnology Institute, University of La Laguna, Avda. Astrofisico Francisco Sánchez s/n, 38206, San Cristóbal de La Laguna, Spain
| | - Charlotte Kielar
- Insitute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328, Dresden, Germany
| | - Marten Huck
- Chemistry Department, Paderborn University, 33098, Paderborn, Germany
| | | | - Adrian Keller
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
| | - Guido Grundmeier
- Technical and Macromolecular Chemistry, Paderborn University, Warburger Str. 100, 33098, Paderborn, Germany
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2
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Völkle Nee Evgrafov E, Schulz F, Kanold JM, Michaelis M, Wissel K, Brümmer F, Schenk AS, Ludwigs S, Bill J, Rothenstein D. Functional mimicry of sea urchin biomineralization proteins with CaCO 3-binding peptides selected by phage display. J Mater Chem B 2023; 11:10174-10188. [PMID: 37850271 DOI: 10.1039/d3tb01584j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
The intricate process of biomineralization, e.g. in sea urchins, involves the precise interplay of highly regulated mineralization proteins and the spatiotemporal coordination achieved through compartmentalization. However, the investigation of biomineralization effector molecules, e.g. proteins, is challenging, due to their very low abundance. Therefore, we investigate the functional mimicry in the bioinspired precipitation of calcium carbonate (CaCO3) with artificial peptides selected from a peptide library by phage display based on peptide-binding to calcite and aragonite, respectively. The structure-directing effects of the identified peptides were compared to those of natural protein mixes isolated from skeletal (test) structures of two sea urchin species (Arbacia lixula and Paracentrotus lividus). The calcium carbonate samples deposited in the absence or presence of peptides were analyzed with a set of complementary techniques with regard to morphology, polymorph, and nanostructural motifs. Remarkably, some of the CaCO3-binding peptides induced morphological features in calcite that appeared similar to those obtained in the presence of the natural protein mixes. Many of the peptides identified as most effective in exerting a structure-directing effect on calcium carbonate crystallization were rich in basic amino acid residues. Hence, our in vitro mineralization study further highlights the important, but often neglected, role of positively charged soluble organic matrices associated with biological and bioinspired CaCO3 deposition.
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Affiliation(s)
- Elke Völkle Nee Evgrafov
- Dept. Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Fabian Schulz
- Dept. Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Julia Maxi Kanold
- Institute for Biomaterials and Biomolecular Systems & Scientific Diving Group (WiTUS), University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Monika Michaelis
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK
| | - Kerstin Wissel
- Dept. Chemical Materials Synthesis, Institute for Materials Science, University of Stuttgart, Heisenbergstraβe 3, 70569 Stuttgart, Germany
| | - Franz Brümmer
- Institute for Biomaterials and Biomolecular Systems & Scientific Diving Group (WiTUS), University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Anna S Schenk
- Physical Chemistry IV, Department of Chemistry, University of Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany
| | - Sabine Ludwigs
- IPOC - Functional Polymers, Institute of Polymer Chemistry (IPOC), University of Stuttgart, Stuttgart 70569, Germany
| | - Joachim Bill
- Dept. Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Dirk Rothenstein
- Dept. Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
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3
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Michaelis M, Cupellini L, Mensch C, Perry CC, Delle Piane M, Colombi Ciacchi L. Tidying up the conformational ensemble of a disordered peptide by computational prediction of spectroscopic fingerprints. Chem Sci 2023; 14:8483-8496. [PMID: 37592980 PMCID: PMC10430726 DOI: 10.1039/d3sc02202a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/15/2023] [Indexed: 08/19/2023] Open
Abstract
The most advanced structure prediction methods are powerless in exploring the conformational ensemble of disordered peptides and proteins and for this reason the "protein folding problem" remains unsolved. We present a novel methodology that enables the accurate prediction of spectroscopic fingerprints (circular dichroism, infrared, Raman, and Raman optical activity), and by this allows for "tidying up" the conformational ensembles of disordered peptides and disordered regions in proteins. This concept is elaborated for and applied to a dodecapeptide, whose spectroscopic fingerprint is measured and theoretically predicted by means of enhanced-sampling molecular dynamics coupled with quantum mechanical calculations. Following this approach, we demonstrate that peptides lacking a clear propensity for ordered secondary-structure motifs are not randomly, but only conditionally disordered. This means that their conformational landscape, or phase-space, can be well represented by a basis-set of conformers including about 10 to 100 structures. The implications of this finding have profound consequences both for the interpretation of experimental electronic and vibrational spectral features of peptides in solution and for the theoretical prediction of these features using accurate and computationally expensive techniques. The here-derived methods and conclusions are expected to fundamentally impact the rationalization of so-far elusive structure-spectra relationships for disordered peptides and proteins, towards improved and versatile structure prediction methods.
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Affiliation(s)
- Monika Michaelis
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, University of Bremen Am Fallturm 1 Bremen 28359 Germany
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
| | - Lorenzo Cupellini
- Dipartimento di Chimica e Chimica Industriale, University of Pisa Via G. Moruzzi 13 Pisa I-56124 Italy
| | - Carl Mensch
- Molecular Spectroscopy Research Group, Department of Chemistry, University of Antwerp Groenenborgerlaan 171 Antwerp 2020 Belgium
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
| | - Massimo Delle Piane
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, University of Bremen Am Fallturm 1 Bremen 28359 Germany
- Department of Applied Science and Technology, Politecnico di Torino Corso Duca degli Abruzzi 24 Torino 10129 Italy
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, University of Bremen Am Fallturm 1 Bremen 28359 Germany
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4
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Ihlenburg RBJ, Petracek D, Schrank P, Davari MD, Taubert A, Rothenstein D. Identification of the First Sulfobetaine Hydrogel-Binding Peptides via Phage Display Assay. Macromol Rapid Commun 2023; 44:e2200896. [PMID: 36703485 DOI: 10.1002/marc.202200896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 01/11/2023] [Indexed: 01/28/2023]
Abstract
Using the M13 phage display, a series of 7- and 12-mer peptides which interact with new sulfobetaine hydrogels are identified. Two peptides each from the 7- and 12-mer peptide libraries bind to the new sulfobetaine hydrogels with high affinity compared to the wild-type phage lacking a dedicated hydrogel binding peptide. This is the first report of peptides binding to zwitterionic sulfobetaine hydrogels and the study therefore opens up the pathway toward new phage or peptide/hydrogel hybrids with high application potential.
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Affiliation(s)
- Ramona B J Ihlenburg
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, D-14476, Potsdam, Germany
| | - David Petracek
- Department Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569, Stuttgart, Germany
| | - Paul Schrank
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120, Halle, Germany
| | - Mehdi D Davari
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120, Halle, Germany
| | - Andreas Taubert
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, D-14476, Potsdam, Germany
| | - Dirk Rothenstein
- Department Bioinspired Materials, Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, D-70569, Stuttgart, Germany
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5
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Winton AJ, Allen MA. Rational Design of a Bifunctional Peptide Exhibiting Lithium Titanate Oxide and Carbon Nanotube Affinities for Lithium-Ion Battery Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8579-8589. [PMID: 36729082 DOI: 10.1021/acsami.2c18018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Phage display is employed as a method for identifying polypeptides that bind to lithium-ion battery materials, specifically lithium titanate oxide (LTO) and multiwalled carbon nanotubes (MWCNTs). Output/input assays are used as a quantitative measure to narrow down the strongest binding polypeptides from several peptides selected through biopanning. Negatively stained transmission electron microscopy is used to verify that a phage presenting a particular LTO or MWCNT binding peptide sequence colocalizes with the respective material. Heterologous expression allows for ample polypeptides to be grown and purified using a peptide expression vector. Isothermal titration calorimetry in conjunction with alanine scanning enables determination of the pertinent residues involved in LTO binding and yields a dissociation constant of 3.41 μM. A rationally designed bifunctional peptide exhibiting LTO and MWCNT binding domains is subsequently validated to exhibit both LTO and MWCNT affinities and is incorporated as a binding agent in LTO coin-type electrochemical cells where the bifunctional peptide demonstrates stability at high cycle rates and potential as an alternative to non-specific binding agents for aqueous slurry processing of lithium-ion battery electrodes.
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Affiliation(s)
- Alexander J Winton
- Department of Chemistry & Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250, United States
| | - Mark A Allen
- Department of Chemistry & Biochemistry, University of Maryland Baltimore County, Baltimore, Maryland 21250, United States
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6
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Biomedical applications of solid-binding peptides and proteins. Mater Today Bio 2023; 19:100580. [PMID: 36846310 PMCID: PMC9950531 DOI: 10.1016/j.mtbio.2023.100580] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 02/06/2023] [Accepted: 02/10/2023] [Indexed: 02/17/2023] Open
Abstract
Over the past decades, solid-binding peptides (SBPs) have found multiple applications in materials science. In non-covalent surface modification strategies, solid-binding peptides are a simple and versatile tool for the immobilization of biomolecules on a vast variety of solid surfaces. Especially in physiological environments, SBPs can increase the biocompatibility of hybrid materials and offer tunable properties for the display of biomolecules with minimal impact on their functionality. All these features make SBPs attractive for the manufacturing of bioinspired materials in diagnostic and therapeutic applications. In particular, biomedical applications such as drug delivery, biosensing, and regenerative therapies have benefited from the introduction of SBPs. Here, we review recent literature on the use of solid-binding peptides and solid-binding proteins in biomedical applications. We focus on applications where modulating the interactions between solid materials and biomolecules is crucial. In this review, we describe solid-binding peptides and proteins, providing background on sequence design and binding mechanism. We then discuss their application on materials relevant for biomedicine (calcium phosphates, silicates, ice crystals, metals, plastics, and graphene). Although the limited characterization of SBPs still represents a challenge for their design and widespread application, our review shows that SBP-mediated bioconjugation can be easily introduced into complex designs and on nanomaterials with very different surface chemistries.
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7
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Hematian H, Ukraintsev E, Rezek B. Strong Structural and Electronic Binding of Bovine Serum Albumin to ZnO via Specific Amino Acid Residues and Zinc Atoms. Chemphyschem 2021; 23:e202100639. [PMID: 34755930 DOI: 10.1002/cphc.202100639] [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: 09/01/2021] [Revised: 10/24/2021] [Indexed: 11/08/2022]
Abstract
ZnO biointerfaces with serum albumin have attracted noticeable attention due to the increasing interest in developing ZnO-based materials for biomedical applications. ZnO surface morphology and chemistry are expected to play a critical role on the structural, optical, and electronic properties of albumin-ZnO complexes. Yet there are still large gaps in the understanding of these biological interfaces. Herein we comprehensively elucidate the interactions at such interfaces by using atomic force microscopy and nanoshaving experiments to determine roughness, thickness, and adhesion properties of BSA layers adsorbed on the most typical polar and non-polar ZnO single-crystal facets. These experiments are corroborated by force field (FF) and density-functional tight-binding (DFTB) calculations on ZnO-BSA interfaces. We show that BSA adsorbs on all the studied ZnO surfaces while interactions of BSA with ZnO are found to be considerably affected by the atomic surface structure of ZnO. BSA layers on the ( 000 1 ‾ ) surface have the highest roughness and thickness, hinting at a specific upright BSA arrangement. BSA layers on ( 10 1 ‾ 0 ) surface have the strongest binding, which is well correlated with DFTB simulations showing atomic rearrangement and bonding between specific amino acids (AAs) and ZnO. Besides the structural properties, the ZnO interaction with these AAs also controls the charge transfer and HOMO-LUMO energy positions in the BSA-ZnO complexes. This ZnO facet-specific protein binding and related structural and electronic effects can be useful for improving the design and functionality of ZnO-based materials and devices.
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Affiliation(s)
- Hadi Hematian
- Department of Physics, Faculty of Electrical Engineering, CTU in Prague, Technická 2, 166 27, Prague 6, Czech Republic
| | - Egor Ukraintsev
- Institute of Physics, Czech Academy of Sciences, Cukrovarnická 10, 162 00, Prague 6, Czech Republic
| | - Bohuslav Rezek
- Department of Physics, Faculty of Electrical Engineering, CTU in Prague, Technická 2, 166 27, Prague 6, Czech Republic
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8
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Lu JY, Zhang FR, Zou WZ, Huang WT, Guo Z. Peptide-based system for sensing Pb 2+ and molecular logic computing. Anal Biochem 2021; 630:114333. [PMID: 34400145 DOI: 10.1016/j.ab.2021.114333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/14/2021] [Accepted: 08/08/2021] [Indexed: 12/25/2022]
Abstract
Peptides with recognition, assembly, various activities exhibit strong power and application prospects in sensing, material science, biomedicine. However, peptide-based sensing and expanding application is still at an early stage. Herein, a peptide-based sensing and logic system was developed for highly sensitive and selective detection of Pb2+ and implementation of logic operations. Our Pb2+ assay method was ultra-rapid (less than 1 min), direct, simple with detection limit of 0.75 nM. Flexibility and scalability of peptide-based solution system facilitated the execution of sensing and logic operations from simple to complex. This research will not only inspire discovery and comprehensive applications (such as sensing and assembly) of more functional peptides, but also provide more opportunities for development and design of peptide-based systems and molecular information technologies.
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Affiliation(s)
- Jiao Yang Lu
- Academician Workstation, Changsha Medical University, Changsha, 410219, PR China
| | - Fu Rui Zhang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha, 410081, PR China
| | - Wen Zi Zou
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha, 410081, PR China
| | - Wei Tao Huang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Microbial Molecular Biology, College of Life Science, Hunan Normal University, Changsha, 410081, PR China
| | - Zhen Guo
- Academician Workstation, Changsha Medical University, Changsha, 410219, PR China.
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9
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Kumar D, Priyadarshini CH, Sudha V, Sherine J, Harinipriya S, Pal S. Investigation of Adsorption Behavior of Anticancer Drug on Zinc Oxide Nanoparticles: A Solid State NMR and Cyclic Voltammetry (CV) Analysis. J Pharm Sci 2021; 110:3726-3734. [PMID: 34363840 DOI: 10.1016/j.xphs.2021.08.003] [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: 01/24/2021] [Revised: 07/17/2021] [Accepted: 08/02/2021] [Indexed: 11/27/2022]
Abstract
The present study aims to comprehend the adsorption behavior of a set of anticancer drugs namely 5-fluorouracil (5-FU), doxorubicin and daunorubicin on ZnO nanoparticles (ZnO NPs) proposed as drug delivery systems employing solid state (ss) NMR, FTIR and Cyclic Voltammetry (CV) analysis. FTIR and 1H MAS ssNMR data recorded for bare ZnO nanoparticle confirmed the presence of adsorbed -OH groups on the surface. 13C CP-MAS NMR spectra recorded for free and ZnO surface adsorbed drug samples exhibited considerable line broadening and chemical shift changes that complemented our earlier report on UV-DRS and XRD data of surface adsorption in case of 5-FU. Moreover, a remarkable enhancement of 13C signal intensity in case of loaded 5-FU was observed. This clearly indicated rigid nature of the drug on the surface allowing efficient transfer of 1H polarization from the hetero nitrogen of 5-FU to ZnO to form surface hydroxyl (-OH) groups and the same has been observed in the quantum chemical calculations. To further analyze the motional dynamics of the surface adsorbed 5-FU, longitudinal relaxation times (T1) were quantified employing Torchia method that revealed significant enhancement of 13C relaxation rate of adsorbed 5-FU. The enhanced rate suggested an effective role of quadrupolar contribution from 67Zn to the 13C relaxation mechanism of ZnO_5-FU. The heterogeneous rate constant (khet), average free energy of activation (∆G≠) and point of zero charge (PZC) measured for free and drug loaded ZnO NPs samples using CV further support the SS-NMR results.
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Affiliation(s)
- Deepak Kumar
- Department of Chemistry, Indian Institute of Technology Jodhpur, NH 65, Karwar, Jodhpur, India 342037
| | - C Hepsibah Priyadarshini
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, India 603203
| | - V Sudha
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, India 603203
| | - Jositta Sherine
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, India 603203
| | - S Harinipriya
- Division of Energy and Environment, Inventus Bio Energy Private Limited, Chengalpattu, Tamil Nadu, India 603111
| | - Samanwita Pal
- Department of Chemistry, Indian Institute of Technology Jodhpur, NH 65, Karwar, Jodhpur, India 342037.
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10
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Michaelis M, Delle Piane M, Rothenstein D, Perry CC, Colombi Ciacchi L. Lessons from a Challenging System: Accurate Adsorption Free Energies at the Amino Acid/ZnO Interface. J Chem Theory Comput 2021; 17:4420-4434. [PMID: 34191508 DOI: 10.1021/acs.jctc.1c00165] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
We undertake steps to overcome four challenges that have hindered the understanding of ZnO/biomolecule interfaces at the atomic scale: parametrization of a classical force field, ZnO surface termination and amino acid protonation state in methanol, and convergence of enhanced sampling molecular dynamics simulations. We predict adsorption free energies for histidine, serine, cysteine, and tryptophan in remarkable agreement with experimental measurements obtained via a novel indicator-displacement assay. Adsorption is driven by direct surface/amino-acid interactions mediated by terminal hydroxyl groups and stabilized by strongly structured methanol solvation shells.
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Affiliation(s)
- Monika Michaelis
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany.,Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Massimo Delle Piane
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany.,Department of Applied Science and Technology, Politecnico di Torino, Torino 10129, Italy
| | - Dirk Rothenstein
- Institute for Materials Science, Department of Bioinspired Materials, University of Stuttgart, Heisenbergstrasse 3, Stuttgart 70569, Germany
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, University of Bremen, Faculty of Production Engineering, Bremen Center for Computational Materials Science, Center for Environmental Research and Sustainable Technology (UFT), and MAPEX Center for Materials and Processes, Am Fallturm 1, Bremen 28359, Germany
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11
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The Effect of Oligomerization on A Solid-Binding Peptide Binding to Silica-Based Materials. NANOMATERIALS 2020; 10:nano10061070. [PMID: 32486317 PMCID: PMC7353425 DOI: 10.3390/nano10061070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 12/22/2022]
Abstract
The bifunctional linker-protein G (LPG) fusion protein comprises a peptide (linker) sequence and a truncated form of Streptococcus strain G148 protein G (protein G). The linker represents a multimeric solid-binding peptide (SBP) comprising 4 × 21-amino acid sequence repeats that display high binding affinity towards silica-based materials. In this study, several truncated derivatives were investigated to determine the effect of the SBP oligomerization on the silica binding function of LPG (for the sake of clarity, LPG will be referred from here on as 4 × LPG). Various biophysical characterization techniques were used to quantify and compare the truncated derivatives against 4 × LPG and protein G without linker (PG). The derivative containing two sequence repeats (2 × LPG) showed minimal binding to silica, while the truncated derivative with only a single sequence (1 × LPG) displayed no binding. The derivative containing three sequence repeats (3 × LPG) was able to bind to silica with a binding affinity of KD = 53.23 ± 4.5 nM, which is 1.5 times lower than that obtained for 4 × LPG under similar experimental conditions. Circular dichroism (CD) spectroscopy and fluorescence spectroscopy studies indicated that the SBP degree of oligomerization has only a small effect on the secondary structure (the linker unravels the beginning of the protein G sequence) and chemical stability of the parent protein G. However, based on quartz crystal microbalance with dissipation monitoring (QCM-D), oligomerization is an important parameter for a strong and stable binding to silica. The replacement of three sequence repeats by a (GGGGS)12 glycine-rich spacer indicated that the overall length rather than the SBP oligomerization mediated the effective binding to silica.
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12
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Sakaguchi-Mikami A, Fujimoto K, Taguchi T, Isao K, Yamazaki T. A novel biofunctionalizing peptide for metallic alloy. Biotechnol Lett 2020; 42:747-756. [PMID: 32040673 DOI: 10.1007/s10529-020-02832-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 02/04/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVES Improving biocompatibility of metallic alloy biomaterials has been of great interest to prevent implant associated-diseases, such as stent thrombosis. Herein a simple and efficient procedure was designed to biofunctionalize a biomaterial surface by isolating a SUS316L stainless steel binding peptide. RESULTS After three rounds of phage panning procedure, 12 mer peptide (SBP-A; VQHNTKYSVVIR) was identified as SUS316L-binding peptide. The SBP-A peptide formed a stable bond to a SUS316L modified surface and was not toxic to HUVECs. The SBP-A was then used for anti-ICAM antibody modification on SUS316L to construct a vascular endothelial cell-selective surface. The constructed surface dominantly immobilized vascular endothelial cells to smooth muscle cells, demonstrating that the SBP-A enabled simple immobilization of biomolecules without disturbing their active biological function. CONCLUSIONS The SUS316L surface was successfully biofunctionalized using the novel isolated peptide SBP-A, showing its potential as an ideal interface molecule for stent modification. This is the first report of material binding peptide-based optimal surface functionalization to promote endothelialisation. This simple and efficient biofunctionalization procedure is expected to contribute to the development of biocompatible materials.
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Affiliation(s)
- Akane Sakaguchi-Mikami
- Department of Medical technology, School of Health sciences, Tokyo University of Technology, 5-23-22 Nishi-Kamata, Ohta, Tokyo, 144-8535, Japan. .,Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakura-cho, Hachioji, Tokyo, 192-0982, Japan.
| | - Kazuhiro Fujimoto
- Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakura-cho, Hachioji, Tokyo, 192-0982, Japan
| | - Tetsushi Taguchi
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
| | - Karube Isao
- Graduate School of Bionics, Computer and Media Sciences, Tokyo University of Technology, 1404-1 Katakura-cho, Hachioji, Tokyo, 192-0982, Japan
| | - Tomohiko Yamazaki
- Research Center for Functional Materials, National Institute for Materials Science (NIMS), 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan.
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13
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Michaelis M, Fayyaz A, Parambath M, Koeppen S, Ciacchi LC, Hanley QS, Perry CC. Platform for Screening Abiotic/Biotic Interactions Using Indicator Displacement Assays. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:14230-14237. [PMID: 31609123 DOI: 10.1021/acs.langmuir.9b03085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This paper describes novel adaptations of optically sectioned planar format assays to screen compounds for their affinities to materials surfaces. The novel platform, which we name optically sectioned indicator displacement assays (O-IDA), makes use of displaceable dyes in a format adaptable to high-throughput multiwell plate technologies. We describe two approaches: the first being where the dye exhibits fluorescence in both the surface bound and unbound state and the second, where fluorescence is lost upon displacement of the dye from the surface. Half maximal inhibitory concentration (IC50), binding affinity (Ki), and binding free energy (ΔGads) values can be extracted from the raw data. Representative biomolecules were tested for interactions with silica in an aqueous environment and ZnO(0001)-Zn and (10-10) facets in a nonaqueous environment. We provide the first experimental values for both the binding of small molecules to silica and the facet-dependent ZnO binding affinity of key amino acids associated with ZnO-specific oligopeptides. The specific data will be invaluable to those studying interactions at interfaces both experimentally and computationally. O-IDA provides a general framework for the high-throughput screening of molecule binding to materials surfaces, which has important applications in drug delivery, (bio-) catalysis, biosensing, and biomaterial engineering.
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Affiliation(s)
- Monika Michaelis
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
| | | | | | - Susan Koeppen
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
| | - Lucio Colombi Ciacchi
- Hybrid Materials Interfaces Group, Faculty of Production Engineering, Bremen Center for Computational Material Science (BCCMS), Center for Environmental Research and Sustainable Technology (UFT) and MAPEX Centre for Materials and Processes , University of Bremen , D-28359 Bremen , Germany
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14
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Bioprospecting solid binding polypeptides for lithium ion battery cathode materials. Biointerphases 2019; 14:051007. [PMID: 31615214 DOI: 10.1116/1.5111735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Biotemplating presents a promising approach to improve the performance of inorganic materials via specific control over morphology, crystal structure, and the size of particles during synthesis and assembly. Among other biotemplates, solid binding polypeptides (SBPs) isolated for the material of interest provide high binding affinity and selectivity due to distinct combinations of functional groups found in amino acids. Nanomaterials assembled and synthesized with SBPs have found widespread applications from drug delivery to catalysis and energy storage due to their improved properties. In this study, the authors describe the identification of SBPs for binding to Li-ion battery cathode materials LiCoPO4, LiMn1.5Ni0.5O4, and LiMn2O4, which all have potential for improvement toward their theoretical values. The binding affinity of isolated peptides was assessed via phage binding assays and confirmed with electron microscopy in order to select for potential biotemplates. The authors demonstrate ten binding peptides for each material and analyze the sequences for enrichment in specific amino acids toward each structure (olivine and spinel oxide), as well as the test for specificity of selected sequences. In further studies, the authors believe that the isolated SBPs will serve as a template for synthesis and aid in assembly of cathode materials resulting in improved electrochemical properties for Li-ion batteries.
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Abstract
Enzyme-based biocatalysis exhibits multiple advantages over inorganic catalysts, including the biocompatibility and the unchallenged specificity of enzymes towards their substrate. The recovery and repeated use of enzymes is essential for any realistic application in biotechnology, but is not easily achieved with current strategies. For this purpose, enzymes are often immobilized on inorganic scaffolds, which could entail a reduction of the enzymes’ activity. Here, we show that immobilization to a nano-scaled biological scaffold, a nanonetwork of end-to-end cross-linked M13 bacteriophages, ensures high enzymatic activity and at the same time allows for the simple recovery of the enzymes. The bacteriophages have been genetically engineered to express AviTags at their ends, which permit biotinylation and their specific end-to-end self-assembly while allowing space on the major coat protein for enzyme coupling. We demonstrate that the phages form nanonetwork structures and that these so-called nanonets remain highly active even after re-using the nanonets multiple times in a flow-through reactor.
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16
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Peltomaa R, Benito-Peña E, Barderas R, Moreno-Bondi MC. Phage Display in the Quest for New Selective Recognition Elements for Biosensors. ACS OMEGA 2019; 4:11569-11580. [PMID: 31460264 PMCID: PMC6682082 DOI: 10.1021/acsomega.9b01206] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Accepted: 06/21/2019] [Indexed: 05/10/2023]
Abstract
Phages are bacterial viruses that have gained a significant role in biotechnology owing to their widely studied biology and many advantageous characteristics. Perhaps the best-known application of phages is phage display that refers to the expression of foreign peptides or proteins outside the phage virion as a fusion with one of the phage coat proteins. In 2018, one half of the Nobel prize in chemistry was awarded jointly to George P. Smith and Sir Gregory P. Winter "for the phage display of peptides and antibodies." The outstanding technology has evolved and developed considerably since its first description in 1985, and today phage display is commonly used in a wide variety of disciplines, including drug discovery, enzyme optimization, biomolecular interaction studies, as well as biosensor development. A cornerstone of all biosensors, regardless of the sensor platform or transduction scheme used, is a sensitive and selective bioreceptor, or a recognition element, that can provide specific binding to the target analyte. Many environmentally or pharmacologically interesting target analytes might not have naturally appropriate binding partners for biosensor development, but phage display can facilitate the production of novel receptors beyond known biomolecular interactions, or against toxic or nonimmunogenic targets, making the technology a valuable tool in the quest of new recognition elements for biosensor development.
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Affiliation(s)
- Riikka Peltomaa
- Chemical
Optosensors & Applied Photochemistry Group (GSOLFA), Department
of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Elena Benito-Peña
- Chemical
Optosensors & Applied Photochemistry Group (GSOLFA), Department
of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Rodrigo Barderas
- Chronic
Disease Programme (UFIEC), Instituto de
Salud Carlos III, Ctra.
Majadahonda-Pozuelo Km 2.2, 28220 Madrid, Spain
| | - María C. Moreno-Bondi
- Chemical
Optosensors & Applied Photochemistry Group (GSOLFA), Department
of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, 28040 Madrid, Spain
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17
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Kilper S, Jahnke T, Wiegers K, Grohe V, Burghard Z, Bill J, Rothenstein D. Peptide Controlled Shaping of Biomineralized Tin(II) Oxide into Flower-Like Particles. MATERIALS (BASEL, SWITZERLAND) 2019; 12:ma12060904. [PMID: 30889924 PMCID: PMC6470704 DOI: 10.3390/ma12060904] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 03/05/2019] [Accepted: 03/13/2019] [Indexed: 06/09/2023]
Abstract
The size and morphology of metal oxide particles have a large impact on the physicochemical properties of these materials, e.g., the aspect ratio of particles affects their catalytic activity. Bioinspired synthesis routes give the opportunity to control precisely the structure and aspect ratio of the metal oxide particles by bioorganic molecules, such as peptides. This study focusses on the identification of tin(II) oxide (tin monoxide, SnO) binding peptides, and their effect on the synthesis of crystalline SnO microstructures. The phage display technique was used to identify the 7-mer peptide SnBP01 (LPPWKLK), which shows a high binding affinity towards crystalline SnO. It was found that the derivatives of the SnBP01 peptide, varying in peptide length and thus in their interaction, significantly affect the aspect ratio and the size dimension of mineralized SnO particles, resulting in flower-like morphology. Furthermore, the important role of the N-terminal leucine residue in the peptide for the strong organic⁻inorganic interaction was revealed by FTIR investigations. This bioinspired approach shows a facile procedure for the detailed investigation of peptide-to-metal oxide interactions, as well as an easy method for the controlled synthesis of tin(II) oxide particles with different morphologies.
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Affiliation(s)
- Stefan Kilper
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Timotheus Jahnke
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Katharina Wiegers
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Vera Grohe
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Zaklina Burghard
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Joachim Bill
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
| | - Dirk Rothenstein
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
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18
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Atanasova P, Hoffmann RC, Stitz N, Sanctis S, Burghard Z, Bill J, Schneider JJ, Eiben S. Engineered nanostructured virus/ZnO hybrid materials with dedicated functional properties. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2019. [DOI: 10.1680/jbibn.18.00006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Petia Atanasova
- Institute for Materials Science, University of Stuttgart, Stuttgart, Germany
| | - Rudolf C Hoffmann
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Darmstadt, Germany
| | - Nina Stitz
- Institute for Materials Science, University of Stuttgart, Stuttgart, Germany
| | - Shawn Sanctis
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Darmstadt, Germany
| | - Zaklina Burghard
- Institute for Materials Science, University of Stuttgart, Stuttgart, Germany
| | - Joachim Bill
- Institute for Materials Science, University of Stuttgart, Stuttgart, Germany
| | - Jörg J Schneider
- Eduard-Zintl-Institut für Anorganische und Physikalische Chemie, Technische Universität Darmstadt, Darmstadt, Germany
| | - Sabine Eiben
- Institute of Biomaterials and Biological Systems, University of Stuttgart, Stuttgart, Germany
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19
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Mickoleit F, Schüler D. Generation of nanomagnetic biocomposites by genetic engineering of bacterial magnetosomes. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2019. [DOI: 10.1680/jbibn.18.00005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Frank Mickoleit
- Department of Microbiology, University of Bayreuth, Bayreuth, Germany
| | - Dirk Schüler
- Department of Microbiology, University of Bayreuth, Bayreuth, Germany
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20
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Limo MJ, Sola-Rabada A, Boix E, Thota V, Westcott ZC, Puddu V, Perry CC. Interactions between Metal Oxides and Biomolecules: from Fundamental Understanding to Applications. Chem Rev 2018; 118:11118-11193. [PMID: 30362737 DOI: 10.1021/acs.chemrev.7b00660] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Metallo-oxide (MO)-based bioinorganic nanocomposites promise unique structures, physicochemical properties, and novel biochemical functionalities, and within the past decade, investment in research on materials such as ZnO, TiO2, SiO2, and GeO2 has significantly increased. Besides traditional approaches, the synthesis, shaping, structural patterning, and postprocessing chemical functionalization of the materials surface is inspired by strategies which mimic processes in nature. Would such materials deliver new technologies? Answering this question requires the merging of historical knowledge and current research from different fields of science. Practically, we need an effective defragmentation of the research area. From our perspective, the superficial accounting of material properties, chemistry of the surfaces, and the behavior of biomolecules next to such surfaces is a problem. This is particularly of concern when we wish to bridge between technologies in vitro and biotechnologies in vivo. Further, besides the potential practical technological efficiency and advantages such materials might exhibit, we have to consider the wider long-term implications of material stability and toxicity. In this contribution, we present a critical review of recent advances in the chemistry and engineering of MO-based biocomposites, highlighting the role of interactions at the interface and the techniques by which these can be studied. At the end of the article, we outline the challenges which hamper progress in research and extrapolate to developing and promising directions including additive manufacturing and synthetic biology that could benefit from molecular level understanding of interactions occurring between inanimate (abiotic) and living (biotic) materials.
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Affiliation(s)
- Marion J Limo
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom.,Interface and Surface Analysis Centre, School of Pharmacy , University of Nottingham , University Park, Nottingham NG7 2RD , United Kingdom
| | - Anna Sola-Rabada
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Estefania Boix
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom.,Department of Bioproducts and Biosystems , Aalto University , P.O. Box 16100, FI-00076 Aalto , Finland
| | - Veeranjaneyulu Thota
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Zayd C Westcott
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Valeria Puddu
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
| | - Carole C Perry
- Interdisciplinary Biomedical Research Centre, School of Science and Technology , Nottingham Trent University , Clifton Lane, Nottingham NG11 8NS , United Kingdom
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21
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Singh AV, Jahnke T, Kishore V, Park BW, Batuwangala M, Bill J, Sitti M. Cancer cells biomineralize ionic gold into nanoparticles-microplates via secreting defense proteins with specific gold-binding peptides. Acta Biomater 2018; 71:61-71. [PMID: 29499399 DOI: 10.1016/j.actbio.2018.02.022] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 02/16/2018] [Accepted: 02/21/2018] [Indexed: 01/12/2023]
Abstract
Cancer cells have the capacity to synthesize nanoparticles (NPs). The detailed mechanism of this process is not very well documented. We report the mechanism of biomineralization of aqueous gold chloride into NPs and microplates in the breast-cancer cell line MCF7. Spherical gold NPs are synthesized in these cells in the presence of serum in the culture media by the reduction of HAuCl4. In the absence of serum, the cells exhibit gold microplate formation through seed-mediate growth albeit slower reduction. The structural characteristics of the two types of NPs under different media conditions were confirmed using scanning electron microscopy (SEM); crystallinity and metallic properties were assessed with transmission electron microscopy (TEM) and x-ray photoelectron spectroscopy (XPS). Gold-reducing proteins, related to cell stress initiate the biomineralization of HAuCl4 in cells (under serum free conditions) as confirmed by infrared (IR) spectroscopy. MCF7 cells undergo irreversible replicative senescence when exposed to a high concentration of ionic gold and conversely remain in a dormant reversible quiescent state when exposed to a low gold concentration. The latter cellular state was achievable in the presence of the rho/ROCK inhibitor Y-27632. Proteomic analysis revealed consistent expression of specific proteins under serum and serum-free conditions. A high-throughput proteomic approach to screen gold-reducing proteins and peptide sequences was utilized and validated by quartz crystal microbalance with dissipation (QCM-D). STATEMENT OF SIGNIFICANCE Cancer cells are known to synthesize gold nanoparticles and microstructures, which are promising for bioimaging and other therapeutic applications. However, the detailed mechanism of such biomineralization process is not well understood yet. Herein, we demonstrate that cancer cells exposed to gold ions (grown in serum/serum-free conditions) secrete shock and stress-related proteins with specific gold-binding/reducing polypeptides. Cells undergo reversible senescence and can recover normal physiology when treated with the senescence inhibitor depending on culture condition. The use of mammalian cells as microincubators for synthesis of such particles could have potential influence on their uptake and biocompatibility. This study has important implications for in-situ reduction of ionic gold to anisotropic micro-nanostructures that could be used in-vivo clinical applications and tumor photothermal therapy.
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Affiliation(s)
- Ajay Vikram Singh
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany.
| | - Timotheus Jahnke
- Institute for Materials Science, University of Stuttgart, Heisenbergstr. 3, 70569 Stuttgart, Germany
| | - Vimal Kishore
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Byung-Wook Park
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Madu Batuwangala
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
| | - Joachim Bill
- Institute for Materials Science, University of Stuttgart, Heisenbergstr. 3, 70569 Stuttgart, Germany
| | - Metin Sitti
- Physical Intelligence Department, Max Planck Institute for Intelligent Systems, 70569 Stuttgart, Germany
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22
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ten Brummelhuis N, Wilke P, Börner HG. Identification of Functional Peptide Sequences to Lead the Design of Precision Polymers. Macromol Rapid Commun 2017; 38. [DOI: 10.1002/marc.201700632] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Revised: 09/26/2017] [Indexed: 12/16/2022]
Affiliation(s)
- Niels ten Brummelhuis
- Laboratory for Organic Synthesis of Functional Systems; Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 D-12489 Berlin Germany
| | - Patrick Wilke
- Laboratory for Organic Synthesis of Functional Systems; Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 D-12489 Berlin Germany
| | - Hans G. Börner
- Laboratory for Organic Synthesis of Functional Systems; Department of Chemistry; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 D-12489 Berlin Germany
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23
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Lederer FL, Curtis SB, Bachmann S, Dunbar W, MacGillivray RT. Identification of lanthanum-specific peptides for future recycling of rare earth elements from compact fluorescent lamps. Biotechnol Bioeng 2017; 114:1016-1024. [DOI: 10.1002/bit.26240] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 12/09/2016] [Accepted: 12/14/2016] [Indexed: 01/05/2023]
Affiliation(s)
- Franziska L. Lederer
- Centre for Blood Research and Department of Biochemistry and Molecular Biology; University of British Columbia; Vancouver BC Canada
- Department of Processing; Helmholtz-Zentrum Dresden-Rossendorf; Helmholtz Institute Freiberg for Resource Technology; Bautzner Landstrasse 400 Dresden 01328 Germany
| | - Susan B. Curtis
- Norman B. Keevil Institute of Mining Engineering; University of British Columbia; Vancouver BC Canada
| | - Stefanie Bachmann
- Department of Processing; Helmholtz-Zentrum Dresden-Rossendorf; Helmholtz Institute Freiberg for Resource Technology; Bautzner Landstrasse 400 Dresden 01328 Germany
| | - W.Scott Dunbar
- Norman B. Keevil Institute of Mining Engineering; University of British Columbia; Vancouver BC Canada
| | - Ross T.A. MacGillivray
- Centre for Blood Research and Department of Biochemistry and Molecular Biology; University of British Columbia; Vancouver BC Canada
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24
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Lemloh ML, Altintoprak K, Wege C, Weiss IM, Rothenstein D. Biogenic and Synthetic Peptides with Oppositely Charged Amino Acids as Binding Sites for Mineralization. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E119. [PMID: 28772478 PMCID: PMC5459154 DOI: 10.3390/ma10020119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/18/2017] [Accepted: 01/24/2017] [Indexed: 11/25/2022]
Abstract
Proteins regulate diverse biological processes by the specific interaction with, e.g., nucleic acids, proteins and inorganic molecules. The generation of inorganic hybrid materials, such as shell formation in mollusks, is a protein-controlled mineralization process. Moreover, inorganic-binding peptides are attractive for the bioinspired mineralization of non-natural inorganic functional materials for technical applications. However, it is still challenging to identify mineral-binding peptide motifs from biological systems as well as for technical systems. Here, three complementary approaches were combined to analyze protein motifs consisting of alternating positively and negatively charged amino acids: (i) the screening of natural biomineralization proteins; (ii) the selection of inorganic-binding peptides derived from phage display; and (iii) the mineralization of tobacco mosaic virus (TMV)-based templates. A respective peptide motif displayed on the TMV surface had a major impact on the SiO₂ mineralization. In addition, similar motifs were found in zinc oxide- and zirconia-binding peptides indicating a general binding feature. The comparative analysis presented here raises new questions regarding whether or not there is a common design principle based on acidic and basic amino acids for peptides interacting with minerals.
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Affiliation(s)
- Marie-Louise Lemloh
- Institute of Biomaterials and Biomolecular Systems (IBBS), Biobased Materials, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
| | - Klara Altintoprak
- Institute of Biomaterials and Biomolecular Systems (IBBS), Molecular Biology and Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
| | - Christina Wege
- Institute of Biomaterials and Biomolecular Systems (IBBS), Molecular Biology and Plant Virology, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
- Projekthaus NanoBioMater, Allmandring 5B, 70569 Stuttgart, Germany.
| | - Ingrid M Weiss
- Institute of Biomaterials and Biomolecular Systems (IBBS), Biobased Materials, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
- Projekthaus NanoBioMater, Allmandring 5B, 70569 Stuttgart, Germany.
| | - Dirk Rothenstein
- Projekthaus NanoBioMater, Allmandring 5B, 70569 Stuttgart, Germany.
- Institute for Materials Science, Chair of Chemical Materials Synthesis, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany.
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25
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Biopanning and characterization of peptides with Fe3O4 nanoparticles-binding capability via phage display random peptide library technique. Colloids Surf B Biointerfaces 2016; 141:537-545. [DOI: 10.1016/j.colsurfb.2016.01.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2015] [Revised: 01/29/2016] [Accepted: 01/31/2016] [Indexed: 01/31/2023]
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26
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Yamaguchi A, Isozaki K, Nakamura M, Takaya H, Watanabe T. Discovery of 12-mer peptides that bind to wood lignin. Sci Rep 2016; 6:21833. [PMID: 26903196 PMCID: PMC4794044 DOI: 10.1038/srep21833] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 02/02/2016] [Indexed: 11/09/2022] Open
Abstract
Lignin, an abundant terrestrial polymer, is the only large-volume renewable feedstock composed of an aromatic skeleton. Lignin has been used mostly as an energy source during paper production; however, recent interest in replacing fossil fuels with renewable resources has highlighted its potential value in providing aromatic chemicals. Highly selective degradation of lignin is pivotal for industrial production of paper, biofuels, chemicals, and materials. However, few studies have examined natural and synthetic molecular components recognizing the heterogeneous aromatic polymer. Here, we report the first identification of lignin-binding peptides possessing characteristic sequences using a phage display technique. The consensus sequence HFPSP was found in several lignin-binding peptides, and the outer amino acid sequence affected the binding affinity of the peptides. Substitution of phenylalanine7 with Ile in the lignin-binding peptide C416 (HFPSPIFQRHSH) decreased the affinity of the peptide for softwood lignin without changing its affinity for hardwood lignin, indicating that C416 recognised structural differences between the lignins. Circular dichroism spectroscopy demonstrated that this peptide adopted a highly flexible random coil structure, allowing key residues to be appropriately arranged in relation to the binding site in lignin. These results provide a useful platform for designing synthetic and biological catalysts selectively bind to lignin.
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Affiliation(s)
- Asako Yamaguchi
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Katsuhiro Isozaki
- Institute for Chemical Research, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Masaharu Nakamura
- Institute for Chemical Research, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Hikaru Takaya
- Institute for Chemical Research, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
| | - Takashi Watanabe
- Research Institute for Sustainable Humanosphere, Kyoto University, Gokasho Uji, Kyoto 611-0011, Japan
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27
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Ravichandran S, Sullivan MA, Callahan LM, Bentley KL, DeLouise LA. Development and characterization of antibody reagents for detecting nanoparticles. NANOSCALE 2015; 7:20042-20054. [PMID: 26568258 PMCID: PMC4685707 DOI: 10.1039/c5nr04882f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The increasing use of nanoparticles (NPs) in technological applications and in commercial products has escalated environmental health and safety concerns. The detection of NPs in the environment and in biological systems is challenged by limitations associated with commonly used analytical techniques. In this paper we report on the development and characterization of NP binding antibodies, termed NProbes. Phage display methodology was used to discover antibodies that bind NPs dispersed in solution. We present a proof-of-concept for the generation of NProbes and their use for detecting quantum dots and titanium dioxide NPs in vitro and in an ex vivo human skin model. Continued development and refinement of NProbes to detect NPs that vary in composition, shape, size, and surface coating will comprise a powerful tool kit that can be used to advance nanotechnology research particularly in the nanotoxicology and nanotherapeutics fields.
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Affiliation(s)
- Supriya Ravichandran
- Department of Biomedical Engineering, University of Rochester, Rochester, New York 14642, USA.
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28
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Singh M, Zhuo X, Choi DS, Gonzalez LE, Wang J, Hahm JI. Effects of crystallographic facet-specific peptide adsorption along single ZnO nanorods on the characteristic fluorescence intensification on nanorod ends (FINE) phenomenon. NANOSCALE 2015; 7:18813-26. [PMID: 26509316 PMCID: PMC4636451 DOI: 10.1039/c5nr05354d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The precise effect of crystallographically discriminating biomolecular adsorption on the fluorescence intensification profiles of individual zinc oxide nanorod (ZnO NR) platforms was elucidated in this study by employing peptide binding epitopes biased towards particular ZnO crystal surfaces and isolating the peptides on given crystalline facets of ZnO NRs. Subsequently, the fluorescence emission profiles of the preferentially bound peptide cases on the basal versus prismic planes of ZnO NRs were carefully evaluated both experimentally and via computer simulations. The phenomenon of fluorescence intensification on NR ends (FINE) was persistently observed on the individual ZnO NR platforms, regardless of the location of the bound peptides. In contrast to the consistent occurrence of FINE, the degree and magnitude of FINE were largely influenced by the discriminatory peptide adsorption to different ZnO NR facets. The temporal stability of the fluorescence signal was also greatly affected by the selectively located peptides on the ZnO NR crystal when spatially resolved on different NR facets. Similarities and differences in the spatial and temporal fluorescence signal of the crystalline NR facet-specific versus -nonspecific biomolecular adsorption events were then compared. To further illuminate the basis of our experimental findings, we also performed finite-difference-time-domain (FDTD) calculations and examined the different degrees of FINE by modelling the biased peptide adsorption cases. Our multifaceted efforts, providing combined insight into the spatial and temporal characteristics of the biomolecular fluorescence signal characteristically governed by the biomolecular location on the specific NR facets, will be valuable for novel applications and accurate signal interpretation of ZnO NR-based biosensors in many rapidly growing, highly miniaturized biodetection configurations.
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Affiliation(s)
- Manpreet Singh
- Department of Chemistry, Georgetown University, 37th & O Sts. NW, Washington, DC 20057, USA.
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29
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Sasaki R, Kitazawa S, Kitahara R, Nakazawa H, Tanaka Y, Kumagai I, Umetsu M, Makabe K. Zinc Ion-binding Activity of an Anti-ZnO VHH Antibody, 4F2. CHEM LETT 2015. [DOI: 10.1246/cl.150537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryosuke Sasaki
- Graduate School of Science and Engineering, Yamagata University
| | | | - Ryo Kitahara
- College of Pharmaceutical Sciences, Ritsumeikan University
| | - Hikaru Nakazawa
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University
| | | | - Izumi Kumagai
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University
| | - Mitsuo Umetsu
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University
| | - Koki Makabe
- Graduate School of Science and Engineering, Yamagata University
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30
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Xie T, Song S, Schwenke K, Singh M, Gonzalez LE, Del Gado E, Hahm JI. Low-Index ZnO Crystal Plane-Specific Binding Behavior of Whole Immunoglobulin G Proteins. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10493-9. [PMID: 26361274 DOI: 10.1021/acs.langmuir.5b02599] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Crystallographic surface-resolved examination of protein-ZnO interactions can greatly enhance the fundamental understanding of protein adsorption on these technologically important solid surfaces which, in turn, will be tremendously valuable for the emerging applications of ZnO-based biomaterials and biosensors. We examine experimentally and via computer simulations the intriguing differences in the adsorption preferences and binding behavior of whole immunoglobulin G (IgG) proteins to various, low-index ZnO crystal surfaces at the individual biomolecule level. By performing direct atomic force microscopy imaging, we determine that IgG predominantly binds to the ZnO plane of (101̅0) relative to the other three low-index planes of (0001), (0001̅), and (112̅0). This phenomenon is highly unusual, particularly considering the fact that the average binding energy of amino acids (AAs) on the ZnO (0001) facet is higher than that on the (101̅0) plane. In conjunction with combined Monte Carlo-molecular dynamics simulations, we further explain the possible origins of our unusual experimental findings with critical factors such as the specific spatial locations of strongly binding AAs in the protein and their spatial distributions on the exterior surface of the protein.
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Affiliation(s)
| | | | - Konrad Schwenke
- Department of Civil, Environmental and Geomatic Engineering, ETH Zurich , Zurich, Switzerland
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31
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Borg S, Rothenstein D, Bill J, Schüler D. Generation of Multishell Magnetic Hybrid Nanoparticles by Encapsulation of Genetically Engineered and Fluorescent Bacterial Magnetosomes with ZnO and SiO2. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2015; 11:4209-4217. [PMID: 26058383 DOI: 10.1002/smll.201500028] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/16/2015] [Indexed: 06/04/2023]
Abstract
Magnetic nanoparticles (MNPs) have great potential in biomedical applications, but the chemical synthesis of size-controlled and functionalized core-shell MNPs remain challenging. Magnetosomes produced by the magnetotactic bacterium Magnetospirillum gryphiswaldense are naturally uniform and chemically pure magnetite MNPs with superior magnetic characteristics. Here, additional functionalities are made possible by the incorporation of biomolecules on the magnetosome surface; the magnetosome system is then chemically encapsulated with an inorganic coating. The novel multishell nanoparticles consist of the magnetosome core-which includes the magnetite crystal, the magnetosome membrane, and additional moieties, such as the enhanced green fluorescent protein (EGFP) and peptides-and an outer shell, comprising either silica or zinc oxide. Coating the functionalized magnetosomes with silica improves their colloidal stability and preserves the EGFP fluorescence in the presence of proteases and detergents. In addition, the surface charge of magnetosomes can be adjusted by varying the coating. This method will be useful for the versatile generation of new, multifunctional, multishell, and magnetic hybrid nanomaterials with potential applications in various biotechnological fields.
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Affiliation(s)
- Sarah Borg
- Ludwig Maximillians University Munich, Dept. Biology I, LMU Biozentrum, 82152, Martinsried, Germany
| | - Dirk Rothenstein
- University of Stuttgart, Dept. of Material Science, Heisenbergstraße 3, 70569, Stuttgart, Germany
| | - Joachim Bill
- University of Stuttgart, Dept. of Material Science, Heisenbergstraße 3, 70569, Stuttgart, Germany
| | - Dirk Schüler
- Division of Microbiology, Faculty of Biology, Ludwig Maximilians University of Munich, Großhaderner Strasse 2-4, 82152, Martinsried, Germany
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32
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Buonocore F, Arcangeli C, Gala F, Zollo G, Celino M. Adsorption of Modified Arg, Lys, Asp, and Gln to Dry and Hydrated ZnO Surface: A Density Functional Theory Study. J Phys Chem B 2015; 119:11791-7. [DOI: 10.1021/acs.jpcb.5b05584] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Francesco Buonocore
- ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, Via Anguillarese, 301, I-00123 Rome, Italy
- Department
of Physics, NAST Centre c/o University of “Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, United States
| | - Caterina Arcangeli
- ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, Via Anguillarese, 301, I-00123 Rome, Italy
- Department
of Physics, NAST Centre c/o University of “Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
- Center
for Nanophase Materials Sciences, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37831, United States
| | - Fabrizio Gala
- Department
of Fundamental and Applied Sciences for Engineering, University of Rome “La Sapienza”, Via A. Scarpa 14-16, I-00161 Rome, Italy
| | - Giuseppe Zollo
- Department
of Fundamental and Applied Sciences for Engineering, University of Rome “La Sapienza”, Via A. Scarpa 14-16, I-00161 Rome, Italy
| | - Massimo Celino
- ENEA Italian National Agency for New Technologies, Energy and Sustainable Economic Development, C.R. Casaccia, Via Anguillarese, 301, I-00123 Rome, Italy
- Department
of Physics, NAST Centre c/o University of “Tor Vergata”, Via della Ricerca Scientifica, 1, I-00133 Rome, Italy
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33
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Altintoprak K, Seidenstücker A, Welle A, Eiben S, Atanasova P, Stitz N, Plettl A, Bill J, Gliemann H, Jeske H, Rothenstein D, Geiger F, Wege C. Peptide-equipped tobacco mosaic virus templates for selective and controllable biomineral deposition. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2015; 6:1399-412. [PMID: 26199844 PMCID: PMC4505087 DOI: 10.3762/bjnano.6.145] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Accepted: 05/29/2015] [Indexed: 05/22/2023]
Abstract
The coating of regular-shaped, readily available nanorod biotemplates with inorganic compounds has attracted increasing interest during recent years. The goal is an effective, bioinspired fabrication of fiber-reinforced composites and robust, miniaturized technical devices. Major challenges in the synthesis of applicable mineralized nanorods lie in selectivity and adjustability of the inorganic material deposited on the biological, rod-shaped backbones, with respect to thickness and surface profile of the resulting coating, as well as the avoidance of aggregation into extended superstructures. Nanotubular tobacco mosaic virus (TMV) templates have proved particularly suitable towards this goal: Their multivalent protein coating can be modified by high-surface-density conjugation of peptides, inducing and governing silica deposition from precursor solutions in vitro. In this study, TMV has been equipped with mineralization-directing peptides designed to yield silica coatings in a reliable and predictable manner via precipitation from tetraethoxysilane (TEOS) precursors. Three peptide groups were compared regarding their influence on silica polymerization: (i) two peptide variants with alternating basic and acidic residues, i.e. lysine-aspartic acid (KD) x motifs expected to act as charge-relay systems promoting TEOS hydrolysis and silica polymerization; (ii) a tetrahistidine-exposing polypeptide (CA4H4) known to induce silicification due to the positive charge of its clustered imidazole side chains; and (iii) two peptides with high ZnO binding affinity. Differential effects on the mineralization of the TMV surface were demonstrated, where a (KD) x charge-relay peptide (designed in this study) led to the most reproducible and selective silica deposition. A homogenous coating of the biotemplate and tight control of shell thickness were achieved.
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Affiliation(s)
- Klara Altintoprak
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Axel Seidenstücker
- Institute of Solid State Physics, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Alexander Welle
- Karlsruhe Nano Micro Facility (KNMF), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Sabine Eiben
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Petia Atanasova
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany
| | - Nina Stitz
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany
| | - Alfred Plettl
- Institute of Solid State Physics, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Joachim Bill
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany
| | - Hartmut Gliemann
- Institute of Functional Interfaces (IFG), Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
| | - Holger Jeske
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Dirk Rothenstein
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, 70569 Stuttgart, Germany
| | - Fania Geiger
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
| | - Christina Wege
- Department of Molecular Biology and Plant Virology, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany
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34
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Limo MJ, Perry CC. Thermodynamic Study of Interactions Between ZnO and ZnO Binding Peptides Using Isothermal Titration Calorimetry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:6814-6822. [PMID: 26037020 DOI: 10.1021/acs.langmuir.5b01347] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
While material-specific peptide binding sequences have been identified using a combination of combinatorial methods and computational modeling tools, a deep molecular level understanding of the fundamental principles through which these interactions occur and in some instances modify the morphology of inorganic materials is far from being fully realized. Understanding the thermodynamic changes that occur during peptide-inorganic interactions and correlating these to structural modifications of the inorganic materials could be the key to achieving and mastering control over material formation processes. This study is a detailed investigation applying isothermal titration calorimetry (ITC) to directly probe thermodynamic changes that occur during interaction of ZnO binding peptides (ZnO-BPs) and ZnO. The ZnO-BPs used are reported sequences G-12 (GLHVMHKVAPPR), GT-16 (GLHVMHKVAPPR-GGGC), and alanine mutants of G-12 (G-12A6, G-12A11, and G-12A12) whose interaction with ZnO during solution synthesis studies have been extensively investigated. The interactions of the ZnO-BPs with ZnO yielded biphasic isotherms comprising both an endothermic and an exothermic event. Qualitative differences were observed in the isothermal profiles of the different peptides and ZnO particles studied. Measured ΔG values were between -6 and -8.5 kcal/mol, and high adsorption affinity values indicated the occurrence of favorable ZnO-BP-ZnO interactions. ITC has great potential in its use to understand peptide-inorganic interactions, and with continued development, the knowledge gained may be instrumental for simplification of selection processes of organic molecules for the advancement of material synthesis and design.
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Affiliation(s)
- Marion J Limo
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
| | - Carole C Perry
- Biomolecular and Materials Interface Research Group, Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham NG11 8NS, United Kingdom
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35
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Rothenstein D, Shopova-Gospodinova D, Bakradze G, Jeurgens LPH, Bill J. Generation of luminescence in biomineralized zirconia by zirconia-binding peptides. CrystEngComm 2015. [DOI: 10.1039/c4ce01510j] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Current materials research is inspired from biomineralization processes, where proteins control the formation of inorganic materials under soft reaction conditions.
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Affiliation(s)
- D. Rothenstein
- Institute for Materials Science
- University of Stuttgart
- 70569 Stuttgart, Germany
| | | | - G. Bakradze
- Max Planck Institute for Intelligent Systems (formerly MPI for Metals Research)
- Dept. Mittemeijer
- 70569 Stuttgart, Germany
| | - L. P. H. Jeurgens
- Max Planck Institute for Intelligent Systems (formerly MPI for Metals Research)
- Dept. Mittemeijer
- 70569 Stuttgart, Germany
| | - J. Bill
- Institute for Materials Science
- University of Stuttgart
- 70569 Stuttgart, Germany
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36
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Sola-Rabada A, Liang MK, Roe MJ, Perry CC. Peptide-directed crystal growth modification in the formation of ZnO. J Mater Chem B 2015; 3:3777-3788. [DOI: 10.1039/c5tb00253b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
ZnO-binding peptides, differing only by Met or Cys at position 5 modify the mechanism of ZnO crystal growth.
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Affiliation(s)
- Anna Sola-Rabada
- Biomolecular and Materials Interface Research Group
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Nottingham
| | - Mei-Keat Liang
- Biomolecular and Materials Interface Research Group
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Nottingham
| | - Martin J. Roe
- Advanced Materials Research Group
- X-ray Photoelectron Spectroscopy
- Faculty of Engineering
- The University of Nottingham
- Nottingham
| | - Carole C. Perry
- Biomolecular and Materials Interface Research Group
- Interdisciplinary Biomedical Research Centre
- School of Science and Technology
- Nottingham Trent University
- Nottingham
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37
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Lützenkirchen J, Heberling F, Supljika F, Preocanin T, Kallay N, Johann F, Weisser L, Eng PJ. Structure–charge relationship – the case of hematite (001). Faraday Discuss 2015; 180:55-79. [DOI: 10.1039/c4fd00260a] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
We present a multidisciplinary study on the hematite (001)–aqueous solution interface, in particular the relationship between surface structure (studiedviasurface diffraction in a humid atmosphere) and the macroscopic charging (studiedviasurface- and zeta-potential measurements in electrolyte solutions as a function of pH). Upon aging in water changes in the surface structure are observed, that are accompanied by drastic changes in the zeta-potential. Surprisingly the surface potential is not accordingly affected. We interpret our results by increasing hydration of the surface with time and enhanced reactivity of singly-coordinated hydroxyl groups that cause the isoelectric point of the surface to shift to values that are reminiscent of those typically reported for hematite particles. In its initial stages after preparation the hematite surface is very flat and only weakly hydrated. Our model links the entailing weak water structure with the observed low isoelectric point reminiscent of hydrophobic surfaces. The absence of an aging effect on the surface potentialvs.pH curves is interpreted as domination of the surface potential by the doubly coordinated hydroxyls, which are present on both surfaces.
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Affiliation(s)
- Johannes Lützenkirchen
- Institut für Nukleare Entsorgung
- Karlsruhe Institut für Technologie
- 76021 Karlsruhe
- Germany
| | - Frank Heberling
- Institut für Nukleare Entsorgung
- Karlsruhe Institut für Technologie
- 76021 Karlsruhe
- Germany
| | - Filip Supljika
- Laboratory of Physical Chemistry
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- 10001 Zagreb
| | - Tajana Preocanin
- Laboratory of Physical Chemistry
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- 10001 Zagreb
| | - Nikola Kallay
- Laboratory of Physical Chemistry
- Department of Chemistry
- Faculty of Science
- University of Zagreb
- 10001 Zagreb
| | - Florian Johann
- Oxford Instruments GmbH, c/o Asylum Research
- DE-68259 Mannheim
- Germany
| | - Ludger Weisser
- Oxford Instruments GmbH, c/o Asylum Research
- DE-68259 Mannheim
- Germany
| | - Peter J. Eng
- GeoSoilEnviroCars
- University of Chicago
- Chicago
- USA
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38
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Ruan L, Ramezani-Dakhel H, Lee C, Li Y, Duan X, Heinz H, Huang Y. A rational biomimetic approach to structure defect generation in colloidal nanocrystals. ACS NANO 2014; 8:6934-6944. [PMID: 24937767 DOI: 10.1021/nn501704k] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Controlling the morphology of nanocrystals (NCs) is of paramount importance for both fundamental studies and practical applications. The morphology of NCs is determined by the seed structure and the following facet growth. While means for directing facet formation in NC growth have been extensively studied, rational strategies for the production of NCs bearing structure defects in seeds have been much less explored. Here, we report mechanistic investigations of high density twin formation induced by specific peptides in platinum (Pt) NC growth, on the basis of which we derive principles that can serve as guidelines for the rational design of molecular surfactants to introduce high yield twinning in noble metal NC syntheses. Two synergistic factors are identified in producing twinned Pt NCs with the peptide: (1) the altered reduction kinetics and crystal growth pathway as a result of the complex formation between the histidine residue on the peptide and Pt ions, and (2) the preferential stabilization of {111} planes upon the formation of twinned seeds. We further apply the discovered principles to the design of small organic molecules bearing similar binding motifs as ligands/surfactants to create single and multiple twinned Pd and Rh NCs. Our studies demonstrate the rich information derived from biomimetic synthesis and the broad applicability of biomimetic principles to NC synthesis for diverse property tailoring.
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Affiliation(s)
- Lingyan Ruan
- Department of Materials Science and Engineering, University of California , Los Angeles, California 90095, United States
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39
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Artzy-Schnirman A, Abu-Shah E, Dishon M, Soifer H, Sivan Y, Reiter Y, Benhar I, Sivan U. On the limited recognition of inorganic surfaces by short peptides compared with antibodies. J Pept Sci 2014; 20:446-50. [PMID: 24733719 DOI: 10.1002/psc.2636] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 03/06/2014] [Accepted: 03/14/2014] [Indexed: 11/07/2022]
Abstract
The vast potential applications of biomolecules that bind inorganic surfaces led mostly to the isolation of short peptides that target selectively specific materials. The demonstrated differential affinity toward certain surfaces created the impression that the recognition capacity of short peptides may match that of rigid biomolecules. In the following, we challenge this view by comparing the capacity of antibody molecules to discriminate between the (100) and (111A) facets of a gallium arsenide semiconductor crystal with the capacity of short peptides to do the same. Applying selection from several peptide and single chain phage display libraries, we find a number of antibody molecules that bind preferentially a given crystal facet but fail to isolate, in dozens of attempts, a single peptide capable of such recognition. The experiments underscore the importance of rigidity to the recognition of inorganic flat targets and therefore set limitations on potential applications of short peptides in biomimetics.
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Affiliation(s)
- Arbel Artzy-Schnirman
- Department of Biology, Technion - Israel Institute of Technology, Haifa, 32000, Israel; Department of Physics, Technion - Israel Institute of Technology, Haifa, 32000, Israel; The Russell Berrie Nanotechnology Institute, Technion - Israel Institute of Technology, Haifa, 32000, Israel
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40
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Baumgartner J, Antonietta Carillo M, Eckes KM, Werner P, Faivre D. Biomimetic magnetite formation: from biocombinatorial approaches to mineralization effects. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2129-36. [PMID: 24499323 PMCID: PMC3958130 DOI: 10.1021/la404290c] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 02/03/2014] [Indexed: 05/27/2023]
Abstract
Biological materials typically display complex morphologies and hierarchical architectures, properties that are hardly matched by synthetic materials. Understanding the biological control of mineral properties will enable the development of new synthetic approaches toward biomimetic functional materials. Here, we combine biocombinatorial approaches with a proteome homology search and in vitro mineralization assays to assess the role of biological determinants in biomimetic magnetite mineralization. Our results suggest that the identified proteins and biomimetic polypeptides influence nucleation in vitro. Even though the in vivo role cannot be directly determined from our experiments, we can rationalize the following design principles: proteins, larger complexes, or membrane components that promote nucleation in vivo are likely to expose positively charged residues to a negatively charged crystal surface. In turn, components with acidic (negatively charged) functionality are nucleation inhibitors, which stabilize an amorphous structure through the coordination of iron.
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Affiliation(s)
- Jens Baumgartner
- Department
of Biomaterials, Max Planck Institute of
Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
| | - Maria Antonietta Carillo
- Department
of Biomaterials, Max Planck Institute of
Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
| | - Kevin M. Eckes
- Department
of Biomaterials, Max Planck Institute of
Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
| | - Peter Werner
- Max
Planck Institute of Microstructure Physics, 06120 Halle, Germany
| | - Damien Faivre
- Department
of Biomaterials, Max Planck Institute of
Colloids and Interfaces, Science Park Golm, 14424 Potsdam, Germany
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41
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Seker UOS, Sharma VK, Akhavan S, Demir HV. Engineered peptides for nanohybrid assemblies. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2137-2143. [PMID: 24494655 DOI: 10.1021/la500160p] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Inspired by biological material synthesis, synthetic biomineralization peptides have been screened through a laboratory evolution using biocombinatorial techniques. In this study, using the fine examples in nature, silica binding peptides and gold binding peptides were fused together to form a hybrid peptide. We designed fusion peptides with different gold binding and silica binding parts. First, we have tested the binding capability of the fusion peptides using quartz crystal microbalance on gold surface and silica surface. Second, S1G1 hybrid peptide enabled assembly of gold nanoparticles on a silica surface was achieved. Finally, nanomaterial synthesis ability of the S1G1 peptide was presented by the formation of a silica film on a gold surface. In this study, we are presenting a hybrid peptide tool for nanohybrid assembly as a promising route for nanotechnology applications.
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Affiliation(s)
- Urartu Ozgur Safak Seker
- Luminous! Center of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, School of Physical and Mathematical Sciences, Nanyang Technological University , Nanyang Avenue, Singapore 639798, Singapore
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42
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Ploss M, Facey SJ, Bruhn C, Zemel L, Hofmann K, Stark RW, Albert B, Hauer B. Selection of peptides binding to metallic borides by screening M13 phage display libraries. BMC Biotechnol 2014; 14:12. [PMID: 24512376 PMCID: PMC3924706 DOI: 10.1186/1472-6750-14-12] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2013] [Accepted: 01/29/2014] [Indexed: 01/16/2023] Open
Abstract
Background Metal borides are a class of inorganic solids that is much less known and investigated than for example metal oxides or intermetallics. At the same time it is a highly versatile and interesting class of compounds in terms of physical and chemical properties, like semiconductivity, ferromagnetism, or catalytic activity. This makes these substances attractive for the generation of new materials. Very little is known about the interaction between organic materials and borides. To generate nanostructured and composite materials which consist of metal borides and organic modifiers it is necessary to develop new synthetic strategies. Phage peptide display libraries are commonly used to select peptides that bind specifically to metals, metal oxides, and semiconductors. Further, these binding peptides can serve as templates to control the nucleation and growth of inorganic nanoparticles. Additionally, the combination of two different binding motifs into a single bifunctional phage could be useful for the generation of new composite materials. Results In this study, we have identified a unique set of sequences that bind to amorphous and crystalline nickel boride (Ni3B) nanoparticles, from a random peptide library using the phage display technique. Using this technique, strong binders were identified that are selective for nickel boride. Sequence analysis of the peptides revealed that the sequences exhibit similar, yet subtle different patterns of amino acid usage. Although a predominant binding motif was not observed, certain charged amino acids emerged as essential in specific binding to both substrates. The 7-mer peptide sequence LGFREKE, isolated on amorphous Ni3B emerged as the best binder for both substrates. Fluorescence microscopy and atomic force microscopy confirmed the specific binding affinity of LGFREKE expressing phage to amorphous and crystalline Ni3B nanoparticles. Conclusions This study is, to our knowledge, the first to identify peptides that bind specifically to amorphous and to crystalline Ni3B nanoparticles. We think that the identified strong binding sequences described here could potentially serve for the utilisation of M13 phage as a viable alternative to other methods to create tailor-made boride composite materials or new catalytic surfaces by a biologically driven nano-assembly synthesis and structuring.
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Affiliation(s)
| | | | | | | | | | | | | | - Bernhard Hauer
- Institute of Technical Biochemistry, University of Stuttgart, Allmandring 31, 70569 Stuttgart, Germany.
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Picker A, Nicoleau L, Nonat A, Labbez C, Cölfen H. Identification of binding peptides on calcium silicate hydrate: a novel view on cement additives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:1135-1140. [PMID: 24535972 DOI: 10.1002/adma.201303345] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Revised: 09/12/2013] [Indexed: 06/03/2023]
Abstract
Phage display experiments on industrially important calcium silicate hydrates (C-S-H), the main hydration product of ordinary Portland cement, suggest fundamentally different specific binding motifs compared to hitherto existing commercial cement additives. According to that, a strong and specific adsorbing additive on C-S-H should have three features which are a negative charge, H-bond formers (especially amide functions) and a hydrophobic part.
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Affiliation(s)
- Andreas Picker
- Physical Chemistry, University of Konstanz Universitätsstraße 10, 78457, Konstanz, Germany
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Baier J, Blumenstein NJ, Preusker J, Jeurgens LPH, Welzel U, Do TA, Pleiss J, Bill J. The influence of ZnO-binding 12-mer peptides on bio-inspired ZnO formation. CrystEngComm 2014. [DOI: 10.1039/c4ce00520a] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Rothenstein D, Facey SJ, Ploss M, Hans P, Melcher M, Srot V, van Aken PA, Hauer B, Bill J. Mineralization of gold nanoparticles using tailored M13 phages. BIOINSPIRED BIOMIMETIC AND NANOBIOMATERIALS 2013. [DOI: 10.1680/bbn.13.00004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Meder F, Kaur S, Treccani L, Rezwan K. Controlling mixed-protein adsorption layers on colloidal alumina particles by tailoring carboxyl and hydroxyl surface group densities. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:12502-12510. [PMID: 23875793 DOI: 10.1021/la402093j] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
We show that different ratios of bovine serum albumin (BSA) and lysozyme (LSZ) can be achieved in a mixed protein adsorption layer by tailoring the amounts of carboxyl (-COOH) and aluminum hydroxyl (AlOH) groups on colloidal alumina particles (d50 ≈ 180 nm). The particles are surface-functionalized with -COOH groups, and the resultant surface chemistry, including the remaining AlOH groups, is characterized and quantified using elemental analysis, ζ potential measurements, acid-base titration, IR spectroscopy, electron microscopy, nitrogen adsorption, and dynamic light scattering. BSA and LSZ are subsequently added to the particle suspensions, and protein adsorption is monitored by in situ ζ potential measurements while being quantified by UV spectroscopy and gel electrophoresis. A comparison of single-component and sequential protein adsorption reveals that BSA and LSZ have specific adsorption sites: BSA adsorbs primarily via AlOH groups, whereas LSZ adsorbs only via -COOH groups (1-2 -COOH groups on the particle surface is enough to bind one LSZ molecule). Tailoring such groups on the particle surface allows control of the composition of a mixed BSA and LSZ adsorption layer. The results provide further insight into how particle surface chemistry affects the composition of protein adsorption layers on colloidal particles and is valuable for the design of such particles for biotechnological and biomedical applications.
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Affiliation(s)
- Fabian Meder
- Faculty of Production Engineering, Advanced Ceramics, University of Bremen , D-28359 Bremen, Germany
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Adams BL, Finch AS, Hurley MM, Sarkes DA, Stratis-Cullum DN. Genetically engineered peptides for inorganics: study of an unconstrained bacterial display technology and bulk aluminum alloy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:4585-91. [PMID: 23868808 PMCID: PMC3793233 DOI: 10.1002/adma.201301646] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 05/20/2013] [Indexed: 05/16/2023]
Abstract
The first-ever peptide biomaterial discovery using an unconstrained engineered bacterial display technology is reported. Using this approach, we have developed genetically engineered peptide binders for a bulk aluminum alloy and use molecular dynamics simulation of peptide conformational fluctuations to demonstrate sequence-dependent, structure-function relationships for metal and metal oxide interactions.
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Affiliation(s)
- Bryn L Adams
- U.S. Army Research LaboratoryRDRL-SEE-B, 2800 Powder Mill Road, Adelphi, MD 20783, USA
| | - Amethist S Finch
- U.S. Army Research LaboratoryRDRL-SEE-B, 2800 Powder Mill Road, Adelphi, MD 20783, USA
| | - Margaret M Hurley
- US Army Research LaboratoryRDRL-WML-B, 4600 Deer Creek Loop, Aberdeen Proving Ground, MD 21005, USA
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Razvag Y, Gutkin V, Reches M. Probing the interaction of individual amino acids with inorganic surfaces using atomic force spectroscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:10102-10109. [PMID: 23859476 DOI: 10.1021/la4015866] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This article describes single-molecule force spectroscopy measurements of the interaction between individual amino acid residues and inorganic surfaces in an aqueous solution. In each measurement, there is an amino acid residue, lysine, glutamate, phenylalanine, leucine, or glutamine, and each represents a class of amino acids (positively or negatively charged, aromatic, nonpolar, and polar). Force-distance curves measured the interaction of the individual amino acid bound to a silicon atomic force microscope (AFM) tip with a silcon substrate, cut from a single-crystal wafer, or mica. Using this method, we were able to measure low adhesion forces (below 300 pN) and could clearly determine the strength of interactions between the individual amino acid residues and the inorganic substrate. In addition, we observed how changes in the pH and ionic strength of the solution affected the adsorption of the residues to the substrates. Our results pinpoint the important role of hydrophobic interactions among the amino acids and the substrate, where hydrophobic phenylalanine exhibited the strongest adhesion to a silicon substrate. Additionally, electrostatic interactions also contributed to the adsorption of amino acid residues to inorganic substrates. A change in the pH or ionic strength values of the buffer altered the strength of interactions among the amino acids and the substrate. We concluded that the interplay between the hydrophobic forces and electrostatic interactions will determine the strength of adsorption among the amino acids and the surface. Overall, these results contribute to our understanding of the interaction at the organic-inorganic interface. These results may have implications for our perception of the specificity of peptide binding to inorganic surfaces. Consequently, it would possibly lead to a better design of composite materials and devices.
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Affiliation(s)
- Yair Razvag
- Institute of Chemistry, The Hebrew University of Jerusalem, 91904 Jerusalem, Israel
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Ding X, Yang KL. Development of an oligopeptide functionalized surface plasmon resonance biosensor for online detection of glyphosate. Anal Chem 2013; 85:5727-33. [PMID: 23675691 DOI: 10.1021/ac400273g] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a surface plasmon resonance (SPR) biosensor for online detection of glyphosate. The surface of the sensing element is decorated with an oligopeptide, TPFDLRPSSDTR, which is identified by using phage display library. This oligopeptide shows high binding specificity for glyphosate (KD = 8.6 μM), probably because of the presence of R and D in the oligopeptide. To detect glyphosate in buffer solution, an SPR gold sensor chip is modified by using the oligopeptide with a surface density of 0.6 1/nm(2). The sensitivity of this oligopeptide-functionalized SPR biosensor is 1.02 RU/μM whereas the limit of detection (LOD) is 0.58 μM. This oligopeptide functionalized SPR biosensor also shows good specificity against other analytes such as glycine, thiacloprid, and imidacloprid.
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Affiliation(s)
- Xiaokang Ding
- Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117576
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Meder F, Hintz H, Koehler Y, Schmidt MM, Treccani L, Dringen R, Rezwan K. Adsorption and Orientation of the Physiological Extracellular Peptide Glutathione Disulfide on Surface Functionalized Colloidal Alumina Particles. J Am Chem Soc 2013; 135:6307-16. [DOI: 10.1021/ja401590c] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Fabian Meder
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Henrik Hintz
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Yvonne Koehler
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Maike M. Schmidt
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Laura Treccani
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Ralf Dringen
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
| | - Kurosch Rezwan
- Faculty
of Production Engineering, Advanced Ceramics, ‡Center for Biomolecular Interactions
Bremen, and §Center for Environmental Research and Sustainable Technology, University of Bremen, Bremen, Germany
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