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Walters F, Burwell G, Mitchell JJ, Ali MM, Daghigh Ahmadi E, Mostert AB, Jenkins CA, Rozhko S, Kazakova O, Guy OJ. A Rapid Graphene Sensor Platform for the Detection of Viral Proteins in Low Volume Samples. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202100140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Affiliation(s)
- Ffion Walters
- Centre for NanoHealth, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
| | - Gregory Burwell
- Department of Physics, School of Biosciences, Geography and Physics Swansea University Swansea SA2 8PP UK
| | - Jacob John Mitchell
- Centre for NanoHealth, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
- SPTS Technologies Ltd, R&D and Product department Ringland Way Newport NP18 2TA UK
| | - Muhammad Munem Ali
- Centre for NanoHealth, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
| | - Ehsaneh Daghigh Ahmadi
- Centre for NanoHealth, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
| | - A. Bernardus Mostert
- Department of Chemistry, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
| | | | - Sergiy Rozhko
- National Physical Laboratory Quantum Metrology Institute Teddington Middlesex TW11 0LW UK
| | - Olga Kazakova
- National Physical Laboratory Quantum Metrology Institute Teddington Middlesex TW11 0LW UK
| | - Owen J. Guy
- Centre for NanoHealth, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
- Department of Chemistry, School of Engineering and Applied Sciences Swansea University Swansea SA2 8PP UK
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2
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Barinov NA, Tolstova AP, Bersenev EA, Ivanov DA, Dubrovin EV, Klinov DV. Molecular patterns of oligopeptide hydrocarbons on graphite. Colloids Surf B Biointerfaces 2021; 206:111921. [PMID: 34157520 DOI: 10.1016/j.colsurfb.2021.111921] [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: 09/08/2020] [Revised: 05/19/2021] [Accepted: 06/13/2021] [Indexed: 10/21/2022]
Abstract
Graphitic materials including graphene, carbon nanotubes and fullerenes, are promising for use in nanotechnology and biomedicine. Non-covalent functionalization by peptides and other organic molecules allows changing the properties of graphitic surfaces in a controlled manner and represents a big potential for fundamental research and applications. Recently described oligopeptide-hydrocarbon derivative N,N'-(decane-1,10-diyl)bis(tetraglycineamide) (GM) is highly prospective for the development of graphitic interfaces in biosensor application as well as in structural biology for improving the quality of high-resolution atomic force microscopy (AFM) visualization of individual biomacromolecules. However, molecular organization of GM on graphitic surfaces is still unknown. In this work, the molecular model of GM at the water/highly oriented pyrolytic graphite (HOPG) interface has been developed basing on the high-resolution AFM and full-atom molecular modeling data. This model explains two periodicities observed in AFM images by GM self-assembly on a HOPG surface with formation of the stacks with the lateral shifts. The obtained results reveal the particular patterns and dynamics of GM molecules adsorbed on graphite and unravel the puzzle of peptide self-assembly on graphitic surfaces.
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Affiliation(s)
- Nikolay A Barinov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow 119435 Russian Federation; Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russian Federation
| | - Anna P Tolstova
- Engelhardt Institute of Molecular Biology, Vavilova 32, 119991, Moscow, Russian Federation
| | - Egor A Bersenev
- Moscow Institute of Physics and Technology, Institutskiy Per. 9, Dolgoprudny 141700, Russian Federation; Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka 142432, Russian Federation
| | - Dmitry A Ivanov
- Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russian Federation; Institut de Sciences des Matériaux de Mulhouse-IS2M, CNRS UMR 7361, 15, rue Jean Starcky, F-68057 Mulhouse, France
| | - Evgeniy V Dubrovin
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow 119435 Russian Federation; Lomonosov Moscow State University, Leninskie Gory 1 Bld. 2, 119991 Moscow, Russian Federation.
| | - Dmitry V Klinov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Malaya Pirogovskaya 1a, Moscow 119435 Russian Federation; Sirius University of Science and Technology, 1 Olympic Ave, 354340, Sochi, Russian Federation.
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3
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Abstract
Understanding peptide-surface interactions is crucial for programming self-assembly of peptides at surfaces and in realizing their applications, such as biosensors and biomimetic materials. In this study, we developed insights into the dependence of a residue's interaction with a surface on its neighboring residue in a tripeptide using molecular dynamics simulations. This knowledge is integral for designing rational mutations to control peptide-surface complexes. Using graphene as our model surface, we estimated the free energy of adsorption (ΔAads) and extracted predominant conformations of 26 tripeptides with the motif LNR-CR-Gly, where LNR and CR are variable left-neighboring and central residues, respectively. We considered a combination of strongly adsorbing (Phe, Trp, and Arg) and weakly adsorbing (Ala, Val, Leu, Ser, and Thr) amino acids on graphene identified in a prior study to form the tripeptides. Our results indicate that ΔAads of a tripeptide cannot be estimated as the sum of ΔAads of each residue indicating that the residues in a tripeptide do not behave as independent entities. We observed that the contributions from the strongly adsorbing amino acids were dominant, which suggests that such residues could be used for strengthening peptide-graphene interactions irrespective of their neighboring residues. In contrast, the adsorption of weakly adsorbing central residues is dependent on their neighboring residues. Our structural analysis revealed that the dihedral angles of LNR are more correlated with that of CR in the adsorbed state than in bulk state. Together with ΔAads trends, this implies that different backbone structures of a given CR can be accessed for a similar ΔAads by varying the LNR. Therefore, incorporation of context effects in designing mutations can lead to desired peptide structure at surfaces. Our results also emphasize that these cooperative effects in ΔAads and structure are not easily predicted a priori. The collective results have applications in guiding rational mutagenesis techniques to control orientation of peptides at surfaces and in developing peptide structure prediction algorithms in adsorbed state from its sequence.
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Affiliation(s)
- Siva Dasetty
- Department of Chemical & Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
| | - Sapna Sarupria
- Department of Chemical & Biomolecular Engineering, Clemson University, Clemson, South Carolina 29634, United States
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4
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Rissanou AN, Keliri A, Arnittali M, Harmandaris V. Self-assembly of diphenylalanine peptides on graphene via detailed atomistic simulations. Phys Chem Chem Phys 2021; 22:27645-27657. [PMID: 33283818 DOI: 10.1039/d0cp03671d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The self-assembly of diphenylalanine peptides (FF) on a graphene layer, in aqueous solution, is investigated, through all atom molecular dynamics simulations. Two interfacial systems are studied, with different concentrations of dipeptides and the results are compared with an aqueous solution of FF at room temperature. Corresponding length and time scales of the formed structures are quantified providing important insight into the adsorption mechanism of FF onto the graphene surface. A hierarchical formation of FF structures is observed involving two sequential processes: first, a stabilized interfacial layer of dipeptides onto the graphene surface is formulated, which next is followed by the development of a structure of self-aggregated dipeptides on top of this layer. The whole procedure is completed in almost 200 ns, whereas self-assembly in the system without graphene is accomplished much faster; in less than 50 ns cylindrical structures, the microscopic signal of the macroscopic fibrillar ones, are formed. Strong π-π* interactions between FF and the graphene lead to a parallel orientation to the graphene layer of the phenyl rings within a characteristic time of 80 ns, similar to the one indicated by the time evolution of the number of adsorbed FF atoms at the surface. Reduction in the number of hydrogen bonds between FF peptides is observed because of the graphene layer, since it disturbs their self-assembly propensity. The self-assembly of dipeptides and their adsorption onto the graphene surface destruct the hydrogen bond network of water, in the vicinity of FF, however, the total number of hydrogen bonds in all systems increases, promoting the formed structures.
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Affiliation(s)
- Anastassia N Rissanou
- Institute of Applied and Computational Mathematics (IACM), Foundation for Research and Technology Hellas, (FORTH), IACM/FORTH, GR-71110 Heraklion, Greece
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5
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Walters F, Ali MM, Burwell G, Rozhko S, Tehrani Z, Daghigh Ahmadi E, Evans JE, Abbasi HY, Bigham R, Mitchell JJ, Kazakova O, Devadoss A, Guy OJ. A Facile Method for the Non-Covalent Amine Functionalization of Carbon-Based Surfaces for Use in Biosensor Development. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1808. [PMID: 32927839 PMCID: PMC7559712 DOI: 10.3390/nano10091808] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 09/03/2020] [Accepted: 09/04/2020] [Indexed: 12/22/2022]
Abstract
Affinity biosensors based on graphene field-effect transistor (GFET) or resistor designs require the utilization of graphene's exceptional electrical properties. Therefore, it is critical when designing these sensors, that the electrical properties of graphene are maintained throughout the functionalization process. To that end, non-covalent functionalization may be preferred over covalent modification. Drop-cast 1,5-diaminonaphthalene (DAN) was investigated as a quick and simple method for the non-covalent amine functionalization of carbon-based surfaces such as graphene, for use in biosensor development. In this work, multiple graphene surfaces were functionalized with DAN via a drop-cast method, leading to amine moieties, available for subsequent attachment to receptor molecules. Successful modification of graphene with DAN via a drop-cast method was confirmed using X-ray photoelectron spectroscopy (XPS), Raman spectroscopy and real-time resistance measurements. Successful attachment of receptor molecules also confirmed using the aforementioned techniques. Furthermore, an investigation into the effect of sequential wash steps which are required in biosensor manufacture, on the presence of the DAN layer, confirmed that the functional layer was not removed, even after multiple solvent exposures. Drop-cast DAN is thus, a viable fast and robust method for the amine functionalization of graphene surfaces for use in biosensor development.
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Affiliation(s)
- Ffion Walters
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Muhammad Munem Ali
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Gregory Burwell
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK; (G.B.); (R.B.)
| | - Sergiy Rozhko
- National Physical Laboratory, Quantum Metrology Institute, Teddington, Middlesex TW11 0LW, UK; (S.R.); (O.K.)
| | - Zari Tehrani
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Ehsaneh Daghigh Ahmadi
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Jon E. Evans
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Hina Y. Abbasi
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Ryan Bigham
- Department of Physics, College of Science, Swansea University, Swansea SA2 8PP, UK; (G.B.); (R.B.)
| | - Jacob John Mitchell
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Olga Kazakova
- National Physical Laboratory, Quantum Metrology Institute, Teddington, Middlesex TW11 0LW, UK; (S.R.); (O.K.)
| | - Anitha Devadoss
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
| | - Owen J. Guy
- Centre for NanoHealth, College of Engineering, Swansea University, Swansea SA2 8PP, UK; (M.M.A.); (Z.T.); (E.D.A.); (J.E.E.); (H.Y.A.); (J.J.M.)
- Department of Chemistry, College of Science, Swansea University, Swansea SA2 8PP, UK
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6
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Srivastava R. Interactions, electronic and optical properties of nanographene–peptide complexes: a theoretical study. RSC Adv 2020; 10:38654-38662. [PMID: 35517564 PMCID: PMC9057264 DOI: 10.1039/d0ra07961h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 10/09/2020] [Indexed: 12/22/2022] Open
Abstract
We studied the interaction of planar phenylalanine (phe), tryptophan (try), tyrosine (tyr); amide asparagine (asn) and glutamine (gln); arginine (arg) side-chains, charged histidine (his-c) and charged lysine (lys-c) side-chains on a nanographene (g) surface by Density Functional theory (DFT) and Time Dependent Density Functional Theory (TDDFT). The occupied number of states by the system at each energy level and relative contribution of a particular atom/orbital has been studied by Density of States (DOS) and Partial Density of States (PDOS) respectively. Atom-in Molecules (AIM) analysis and non-covalent interaction (NCI) PLOT are used to study the interactions in these complexes. The absorption spectra and HOMO–LUMO (HL) gaps are quantitatively analysed to study the correlation between the optical properties of the studied complexes. The HL gap of peptides is larger than the HL gap of graphene–peptide complexes, indicating strong interactions. All the peptides interact from the above the nanographene surfaces. garg, glys-c, gtry and gtyr complexes have smaller bond distance as compared to gasn, ggln, ghis-c and gphe complexes. AIM analysis and (NCI) PLOT showed noncovalent interactions for these complexes. TDDFT calculations indicated the applicability of these complexes as biosensors. We studied interactions of planar phenylalanine, tryptophan, tyrosine; amide asparagine and glutamine; arginine side-chains, charged histidine and charged lysine side-chains on a nanographene surface by density functional theory and time dependent density functional theory.![]()
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Affiliation(s)
- Ruby Srivastava
- CSIR-Centre for Cellular and Molecular Biology
- Hyderabad
- India
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7
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Wei S, Zou X, Tian J, Huang H, Guo W, Chen Z. Control of Protein Conformation and Orientation on Graphene. J Am Chem Soc 2019; 141:20335-20343. [PMID: 31774666 DOI: 10.1021/jacs.9b10705] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Graphene-based biosensors have attracted considerable attention due to their advantages of label-free detection and high sensitivity. Many such biosensors utilize noncovalent van der Waals force to attach proteins onto graphene surface while preserving graphene's high conductivity. Maintaining the protein structure without denaturation/substantial conformational change and controlling proper protein orientation on the graphene surface are critical for biosensing applications of these biosensors fabricated with proteins on graphene. Based on the knowledge we obtained from our previous experimental study and computer modeling of amino acid residual level interactions between graphene and peptides, here we systemically redesigned an important protein for better conformational stability and desirable orientation on graphene. In this paper, immunoglobulin G (IgG) antibody-binding domain of protein G (protein GB1) was studied to demonstrate how we can preserve the protein native structure and control the protein orientation on graphene surface by redesigning protein mutants. Various experimental tools including sum frequency generation vibrational spectroscopy, attenuated total refection-Fourier transform infrared spectroscopy, fluorescence spectroscopy, and circular dichroism spectroscopy were used to study the protein GB1 structure on graphene, supplemented by molecular dynamics simulations. By carefully designing the protein GB1 mutant, we can avoid strong unfavorable interactions between protein and graphene to preserve protein conformation and to enable the protein to adopt a preferred orientation. The methodology developed in this study is general and can be applied to study different proteins on graphene and beyond. With the knowledge obtained from this research, one could apply this method to optimize protein function on surfaces (e.g., to enhance biosensor sensitivity).
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Affiliation(s)
- Shuai Wei
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Xingquan Zou
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Jiayi Tian
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Hao Huang
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Wen Guo
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
| | - Zhan Chen
- Department of Chemistry , University of Michigan , Ann Arbor , Michigan 48109 , United States
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8
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A label-free fluorescent biosensor for the detection of protein kinase activity based on gold nanoclusters/graphene oxide hybrid materials. Anal Chim Acta 2018; 1013:71-78. [DOI: 10.1016/j.aca.2018.01.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 12/20/2017] [Accepted: 01/22/2018] [Indexed: 12/25/2022]
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9
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Davis TC, Bang JJ, Brooks JT, McMillan DG, Claridge SA. Hierarchically Patterned Noncovalent Functionalization of 2D Materials by Controlled Langmuir-Schaefer Conversion. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1353-1362. [PMID: 29341626 DOI: 10.1021/acs.langmuir.7b03845] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Noncovalent monolayer chemistries are often used to functionalize 2D materials. Nanoscopic ligand ordering has been widely demonstrated (e.g., lying-down lamellar phases of functional alkanes); however, combining this control with micro- and macroscopic patterning for practical applications remains a significant challenge. A few reports have demonstrated that standing phase Langmuir films on water can be converted into nanoscopic lying-down molecular domains on 2D substrates (e.g., graphite), using horizontal dipping (Langmuir-Schaefer, LS, transfer). Molecular patterns are known to form at scales up to millimeters in Langmuir films, suggesting the possibility of transforming such structures into functional patterns on 2D materials. However, to our knowledge, this approach has not been investigated, and the rules governing LS conversion are not well understood. In part, this is because the conversion process is mechanistically very different from classic LS transfer of standing phases; challenges also arise due to the need to characterize structure in noncovalently adsorbed ligand layers <0.5 nm thick, at scales ranging from millimeters to nanometers. Here, we show that scanning electron microscopy enables diynoic acid lying-down phases to be imaged across this range of scales; using this structural information, we establish conditions for LS conversion to create hierarchical microscopic and nanoscopic functional patterns. Such control opens the door to tailoring noncovalent surface chemistry of 2D materials to pattern local interactions with the environment.
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Affiliation(s)
- Tyson C Davis
- Department of Chemistry, ‡Bechtel Innovation Design Center, and §Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Jae Jin Bang
- Department of Chemistry, ‡Bechtel Innovation Design Center, and §Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Jacob T Brooks
- Department of Chemistry, ‡Bechtel Innovation Design Center, and §Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - David G McMillan
- Department of Chemistry, ‡Bechtel Innovation Design Center, and §Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Shelley A Claridge
- Department of Chemistry, ‡Bechtel Innovation Design Center, and §Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
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10
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Claridge SA. Standing, lying, and sitting: translating building principles of the cell membrane to synthetic 2D material interfaces. Chem Commun (Camb) 2018; 54:6681-6691. [DOI: 10.1039/c8cc02596g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Lessons can be drawn from cell membranes in controlling noncovalent functionalization of 2D materials to optimize interactions with the environment.
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Affiliation(s)
- S. A. Claridge
- Department of Chemistry and Weldon School of Biomedical Engineering
- Purdue University
- West Lafayette
- USA
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11
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Thyparambil AA, Bazin I, Guiseppi-Elie A. Molecular Modeling and Simulation Tools in the Development of Peptide-Based Biosensors for Mycotoxin Detection: Example of Ochratoxin. Toxins (Basel) 2017. [PMCID: PMC5744115 DOI: 10.3390/toxins9120395] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Mycotoxin contamination of food and feed is now ubiquitous. Exposures to mycotoxin via contact or ingestion can potentially induce adverse health outcomes. Affordable mycotoxin-monitoring systems are highly desired but are limited by (a) the reliance on technically challenging and costly molecular recognition by immuno-capture technologies; and (b) the lack of predictive tools for directing the optimization of alternative molecular recognition modalities. Our group has been exploring the development of ochratoxin detection and monitoring systems using the peptide NFO4 as the molecular recognition receptor in fluorescence, electrochemical and multimodal biosensors. Using ochratoxin as the model mycotoxin, we share our perspective on addressing the technical challenges involved in biosensor fabrication, namely: (a) peptide receptor design; and (b) performance evaluation. Subsequently, the scope and utility of molecular modeling and simulation (MMS) approaches to address the above challenges are described. Informed and enabled by phage display, the subsequent application of MMS approaches can rationally guide subsequent biomolecular engineering of peptide receptors, including bioconjugation and bioimmobilization approaches to be used in the fabrication of peptide biosensors. MMS approaches thus have the potential to reduce biosensor development cost, extend product life cycle, and facilitate multi-analyte detection of mycotoxins, each of which positively contributes to the overall affordability of mycotoxin biosensor monitoring systems.
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Affiliation(s)
- Aby A. Thyparambil
- Center for Bioelectronics, Biosensors and Biochips (C3B), Texas A&M University, College Station, TX 77843, USA;
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX 77843, USA
| | - Ingrid Bazin
- Laboratoire de Génie de l’Environnement Industriel( LGEI), Institut Mines Telecom (IMT) Mines Ales, University of Montpellier, 30100 Ales, France;
| | - Anthony Guiseppi-Elie
- Center for Bioelectronics, Biosensors and Biochips (C3B), Texas A&M University, College Station, TX 77843, USA;
- Department of Biomedical Engineering, College of Engineering, Texas A&M University, College Station, TX 77843, USA
- ABTECH Scientific, Inc., Biotechnology Research Park, 800 East Leigh Street, Richmond, VA 23219, USA
- Correspondence: ; Tel.: +1-979-458-1239; Fax: +1-979-458-8219
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12
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Hayes TR, Bang JJ, Davis TC, Peterson CF, McMillan DG, Claridge SA. Multimicrometer Noncovalent Monolayer Domains on Layered Materials through Thermally Controlled Langmuir-Schaefer Conversion for Noncovalent 2D Functionalization. ACS APPLIED MATERIALS & INTERFACES 2017; 9:36409-36416. [PMID: 28990761 DOI: 10.1021/acsami.7b11683] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
As functionalized 2D materials are incorporated into hybrid materials, ensuring large-area structural control in noncovalently adsorbed films becomes increasingly important. Noncovalent functionalization avoids disrupting electronic structure in 2D materials; however, relatively weak molecular interactions in such monolayers typically reduce stability toward solution processing and other common material handling conditions. Here, we find that controlling substrate temperature during Langmuir-Schaefer conversion of a standing phase monolayer of diynoic amphiphiles on water to a horizontally oriented monolayer on a 2D substrate routinely produces multimicrometer domains, at least an order of magnitude larger than those typically achieved through drop-casting. Following polymerization, these highly ordered monolayers retain their structures during vigorous washing with solvents including water, ethanol, tetrahydrofuran, and toluene. These findings point to a convenient and broadly applicable strategy for noncovalent functionalization of 2D materials in applications that require large-area structural control, for instance, to minimize desorption at defects during subsequent solution processing.
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Affiliation(s)
- Tyler R Hayes
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
| | - Jae Jin Bang
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
| | - Tyson C Davis
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
| | - Caroline F Peterson
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
| | - David G McMillan
- Bechtel Innovation Design Center, Purdue University , West Lafayette, Indiana 47907, United States
| | - Shelley A Claridge
- Department of Chemistry, Purdue University , West Lafayette, Indiana 47907, United States
- Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
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13
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Villarreal TA, Russell SR, Bang JJ, Patterson JK, Claridge SA. Modulating Wettability of Layered Materials by Controlling Ligand Polar Headgroup Dynamics. J Am Chem Soc 2017; 139:11973-11979. [PMID: 28820248 DOI: 10.1021/jacs.7b05930] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Terry A. Villarreal
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shane R. Russell
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Jae Jin Bang
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Justin K. Patterson
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shelley A. Claridge
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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14
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Choong SW, Russell SR, Bang JJ, Patterson JK, Claridge SA. Sitting Phase Monolayers of Polymerizable Phospholipids Create Dimensional, Molecular-Scale Wetting Control for Scalable Solution-Based Patterning of Layered Materials. ACS APPLIED MATERIALS & INTERFACES 2017; 9:19326-19334. [PMID: 28535061 DOI: 10.1021/acsami.7b03279] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The use of dimensionally ordered ligands on layered materials to direct local electronic structure and interactions with the environment promises to streamline integration into nanostructured electronic, optoelectronic, sensing, and nanofluidic interfaces. Substantial progress has been made in using ligands to control substrate electronic structure. Conversely, using the exposed face of the ligand layer to structure wetting and binding interactions, particularly with scalable solution- or spray-processed materials, remains a significant challenge. However, nature routinely utilizes wetting control at scales from nanometer to micrometer to build interfaces of striking geometric precision and functional complexity, suggesting the possibility of leveraging similar control in synthetic materials. Here, we assemble striped "sitting" phases of polymerizable phospholipids on highly oriented pyrolytic graphite, producing a surface consisting of 1 nm wide hydrophilic stripes alternating with 5 nm wide hydrophobic stripes. Protruding, strongly wetting headgroup chemistries in these monolayers enable formation of rodlike wetted patterns with widths as little as ∼6 nm and lengths up to 100 nm from high-surface-tension liquids (aqueous solutions of glycerol) commonly utilized to assess interfacial wetting properties at larger length scales. In contrast, commonly used lying-down phases of diynoic acids with in-plane headgroups do not promote droplet sticking or directional spreading. These results point to a broadly applicable strategy for achieving high-resolution solution-based patterning on layered materials, utilizing nanometer-wide patterns of protruding, charged functional groups in a noncovalent monolayer to define pattern edges.
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Affiliation(s)
- Shi Wah Choong
- Department of Chemistry, and ‡Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Shane R Russell
- Department of Chemistry, and ‡Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Jae Jin Bang
- Department of Chemistry, and ‡Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Justin K Patterson
- Department of Chemistry, and ‡Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
| | - Shelley A Claridge
- Department of Chemistry, and ‡Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907, United States
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15
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Zou X, Wei S, Jasensky J, Xiao M, Wang Q, Brooks Iii CL, Chen Z. Molecular Interactions between Graphene and Biological Molecules. J Am Chem Soc 2017; 139:1928-1936. [PMID: 28092440 DOI: 10.1021/jacs.6b11226] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Applications of graphene have extended into areas of nanobio-technology such as nanobio-medicine, nanobio-sensing, as well as nanoelectronics with biomolecules. These applications involve interactions between proteins, peptides, DNA, RNA etc. and graphene, therefore understanding such molecular interactions is essential. For example, many applications based on using graphene and peptides require peptides to interact with (e.g., noncovalently bind to) graphene at one end, while simultaneously exposing the other end to the surrounding medium (e.g., to detect analytes in solution). To control and characterize peptide behavior on a graphene surface in solution is difficult. Here we successfully probed the molecular interactions between two peptides (cecropin P1 and MSI-78(C1)) and graphene in situ and in real-time using sum frequency generation (SFG) vibrational spectroscopy and molecular dynamics (MD) simulation. We demonstrated that the distribution of various planar (including aromatic (Phe, Trp, Tyr, and His)/amide (Asn and Gln)/Guanidine (Arg)) side-chains and charged hydrophilic (such as Lys) side-chains in a peptide sequence determines the orientation of the peptide adsorbed on a graphene surface. It was found that peptide interactions with graphene depend on the competition between both planar and hydrophilic residues in the peptide. Our results indicated that part of cecropin P1 stands up on graphene due to an unbalanced distribution of planar and hydrophilic residues, whereas MSI-78(C1) lies down on graphene due to an even distribution of Phe residues and hydrophilic residues. With such knowledge, we could rationally design peptides with desired residues to manipulate peptide-graphene interactions, which allows peptides to adopt optimized structure and exhibit excellent activity for nanobio-technological applications. This research again demonstrates the power to combine SFG vibrational spectroscopy and MD simulation in studying interfacial biological molecules.
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Affiliation(s)
- Xingquan Zou
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Shuai Wei
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Joshua Jasensky
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Minyu Xiao
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Qiuming Wang
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Charles L Brooks Iii
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
| | - Zhan Chen
- Department of Chemistry, and ‡Department of Biophysics, University of Michigan , Ann Arbor, Michigan 48109, United States
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16
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Li S, Fu Y, Ma X, Zhang Y. Label-free fluorometric detection of chymotrypsin activity using graphene oxide/nucleic-acid-stabilized silver nanoclusters hybrid materials. Biosens Bioelectron 2016; 88:210-216. [PMID: 27561443 DOI: 10.1016/j.bios.2016.08.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/01/2016] [Accepted: 08/11/2016] [Indexed: 01/17/2023]
Abstract
Pancreatic function tests are used to determine the presence of chronic pancreatitis, particularly in the early stage of the disease. Chymotrypsin is an indicator of pancreatic function and is thus related to pancreatic diseases. A new fluorescent biosensing method for assay of chymotrypsin activity was developed using DNA (dC12)-templated silver nanoclusters and graphene oxide (GO). A peptide probe was also designed using chymotrypsin-cleavable amino acid sequence and a cysteine terminus. The peptide probe formed Ag-S bond to dC12-AgNCs to enhance the fluorescence of dC12-AgNCs. After the addition of GO, the peptide was adsorbed to the negative GO surface and the fluorescence of dC12-AgNCs was quenched by FRET. The peptide was then degraded into amino acid fragments upon addition of chymotrypsin; these fragments were released from the GO surface, and the FRET was terminated. The developed label-free method features lower cost and higher sensitivity to chymotrypsin activity assay compared with conventional fluorescence analysis. The method can be used to analyze chymotrypsin (as low as 3ng/mL, signal/noise =3) across a dynamic range of 0.0-50.0ng/mL. The proposed biosensing strategy can also be extended to other proteases by using different peptide substrates.
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Affiliation(s)
- Shuangqin Li
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China; Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China
| | - Yuewei Fu
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China; Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China
| | - Xuejuan Ma
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China; Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China
| | - Yaodong Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China; Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, 710062 PR China.
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17
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Bang JJ, Rupp KK, Russell SR, Choong SW, Claridge SA. Sitting Phases of Polymerizable Amphiphiles for Controlled Functionalization of Layered Materials. J Am Chem Soc 2016; 138:4448-57. [PMID: 26974686 DOI: 10.1021/jacs.5b13179] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jae Jin Bang
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Kortney K. Rupp
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shane R. Russell
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shi Wah Choong
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
| | - Shelley A. Claridge
- Department
of Chemistry and ‡Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana 47907, United States
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