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Gupta NK, Okamoto N, Karuppannan SK, Pasula RR, Ziyu Z, Qi DC, Lim S, Nakamura M, Nijhuis CA. The Role of Structural Order in the Mechanism of Charge Transport across Tunnel Junctions with Various Iron-Storing Proteins. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2203338. [PMID: 36103613 DOI: 10.1002/smll.202203338] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 07/19/2022] [Indexed: 06/15/2023]
Abstract
In biomolecular electronics, the role of structural order in charge transport (CT) is poorly understood. It has been reported that the metal oxide cores of protein cages (e.g., iron oxide and ferrihydrite nanoparticles (NPs) present in ferritin and E2-LFtn, which is E2 protein engineered with an iron-binding sequence) play an important role in the mechanism of CT. At the same time, the NP core also plays a major role in the structural integrity of the proteins. This paper describes the role of structural order in CT across tunnel junctions by comparing three iron-storing proteins. They are (1) DNA binding protein from starved cells (Dps, diameter (∅) = 9 nm); (2) engineered archaeal ferritin (AfFtn-AA, ∅ = 12 nm); and (3) engineered E2 of pyruvate dehydrogenase enzyme complex (E2-LFtn, ∅ = 25 nm). Both holo-Dps and apo-Dps proteins undergo CT by coherent tunneling because their globular architecture and relative structural stability provide a coherent conduction pathway. In contrast, apo-AfFtn-AA forms a disordered structure across which charges have to tunnel incoherently, but holo-AfFtn-AA retains its globular structure and supports coherent tunneling. The large E2-LFtn always forms disordered structures across which charges incoherently tunnel regardless of the presence of the NP core. These findings highlight the importance of structural order in the mechanism of CT across biomolecular tunnel junctions.
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Affiliation(s)
- Nipun Kumar Gupta
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
| | - Naofumi Okamoto
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Senthil Kumar Karuppannan
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
- National Quantum Fabless Foundry (NQFF), Institute of Materials Research and Engineering, 2 Fusionopolis Way, Innovis Building, Singapore, 138634, Singapore
| | - Rupali Reddy Pasula
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
| | - Zhang Ziyu
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
| | - Dong-Chen Qi
- Centre for Materials Science, School of Chemistry and Physics, Queensland University of Technology, Brisbane, Queensland, 4001, Australia
| | - Sierin Lim
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 70 Nanyang Drive, Singapore, 637457, Singapore
- Institute for Digital Molecular Analytics and Science, Nanyang Technological University, 59 Nanyang Drive, Experimental Medicine Building, Singapore, 636921, Singapore
| | - Masakazu Nakamura
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Christian A Nijhuis
- Department of Chemistry, National University of Singapore, 3 Science Drive, Singapore, 117543, Singapore
- Centre for Advanced 2D Materials, National University of Singapore, 6 Science Drive 2, Singapore, 117546, Singapore
- Department of Molecules and Materials, MESA+ Institute for Nanotechnology, and Center for Brain-Inspired Nano Systems (BRAINS), Faculty of Science and Technology, University of Twente, P.O. Box 217, Enschede, 7500 AE, The Netherlands
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Pan Y, Paschoalino WJ, Szuchmacher Blum A, Mauzeroll J. Recent Advances in Bio-Templated Metallic Nanomaterial Synthesis and Electrocatalytic Applications. CHEMSUSCHEM 2021; 14:758-791. [PMID: 33296559 DOI: 10.1002/cssc.202002532] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 12/08/2020] [Indexed: 06/12/2023]
Abstract
Developing metallic nanocatalysts with high reaction activity, selectivity and practical durability is a promising and active subfield in electrocatalysis. In the classical "bottom-up" approach to synthesize stable nanomaterials by chemical reduction, stabilizing additives such as polymers or organic surfactants must be present to cap the nanoparticle to prevent material bulk aggregation. In recent years, biological systems have emerged as green alternatives to support the uncoated inorganic components. One key advantage of biological templates is their inherent ability to produce nanostructures with controllable composition, facet, size and morphology under ecologically friendly synthetic conditions, which are difficult to achieve with traditional inorganic synthesis. In addition, through genetic engineering or bioconjugation, bio-templates can provide numerous possibilities for surface functionalization to incorporate specific binding sites for the target metals. Therefore, in bio-templated systems, the electrocatalytic performance of the formed nanocatalyst can be tuned by precisely controlling the material surface chemistry. With controlled improvements in size, morphology, facet exposure, surface area and electron conductivity, bio-inspired nanomaterials often exhibit enhanced catalytic activity towards electrode reactions. In this Review, recent research developments are presented in bio-approaches for metallic nanomaterial synthesis and their applications in electrocatalysis for sustainable energy storage and conversion systems.
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Affiliation(s)
- Yani Pan
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal H3 A 0B8, Quebec, Canada
| | - Waldemir J Paschoalino
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal H3 A 0B8, Quebec, Canada
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, P.O. Box 6154, 13084-971, Campinas, SP, Brazil
| | - Amy Szuchmacher Blum
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal H3 A 0B8, Quebec, Canada
| | - Janine Mauzeroll
- Department of Chemistry, McGill University, 801 Sherbrooke West, Montreal H3 A 0B8, Quebec, Canada
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Manuguri S, Webster K, Yewdall NA, An Y, Venugopal H, Bhugra V, Turner A, Domigan LJ, Gerrard JA, Williams DE, Malmström J. Assembly of Protein Stacks With in Situ Synthesized Nanoparticle Cargo. NANO LETTERS 2018; 18:5138-5145. [PMID: 30047268 DOI: 10.1021/acs.nanolett.8b02055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The ability of proteins to form hierarchical structures through self-assembly provides an opportunity to synthesize and organize nanoparticles. Ordered nanoparticle assemblies are a subject of widespread interest due to the potential to harness their emergent functions. In this work, the toroidal-shaped form of the protein peroxiredoxin, which has a pore size of 7 nm, was used to organize iron oxyhydroxide nanoparticles. Iron in the form of Fe2+ was sequestered into the central cavity of the toroid ring using metal-binding sites engineered there and then hydrolyzed to form iron oxyhydroxide particles bound into the protein pore. By precise manipulation of the pH, the mineralized toroids were organized into stacks confining one-dimensional nanoparticle assemblies. We report the formation and the procedures leading to the formation of such nanostructures and their characterization by chromatography and microscopy. Electrostatic force microscopy clearly revealed the formation of iron-containing nanorods as a result of the self-assembly of the iron-loaded protein. This research bodes well for the use of peroxiredoxin as a template with which to form nanowires and structures for electronic and magnetic applications.
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Affiliation(s)
- Sesha Manuguri
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
| | | | - N Amy Yewdall
- Biomolecular Interaction Centre and School of Biological Sciences , University of Canterbury , Christchurch 8140 , New Zealand
| | | | | | - Vaibhav Bhugra
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
| | | | - Laura J Domigan
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
| | - Juliet A Gerrard
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
| | - David E Williams
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
| | - Jenny Malmström
- MacDiarmid Institute for Advanced Materials and Nanotechnology , 6140 Wellington , New Zealand
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Guan X, Chang Y, Sun J, Song J, Xie Y. Engineered Hsp Protein Nanocages for siRNA Delivery. Macromol Biosci 2018; 18:e1800013. [DOI: 10.1002/mabi.201800013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/24/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Xingang Guan
- Life Science Research Center; Beihua University; Jilin 132013 P. R. China
| | - Yu Chang
- Life Science Research Center; Beihua University; Jilin 132013 P. R. China
- College of Medicine; Beihua University; Jilin 132013 P. R. China
| | - Jinghui Sun
- College of Medicine; Beihua University; Jilin 132013 P. R. China
| | - Jianxi Song
- College of Medicine; Beihua University; Jilin 132013 P. R. China
| | - Yu Xie
- Life Science Research Center; Beihua University; Jilin 132013 P. R. China
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Roy Chowdhury M, Schumann C, Bhakta-Guha D, Guha G. Cancer nanotheranostics: Strategies, promises and impediments. Biomed Pharmacother 2016; 84:291-304. [DOI: 10.1016/j.biopha.2016.09.035] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 08/29/2016] [Accepted: 09/11/2016] [Indexed: 12/31/2022] Open
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Paramelle D, Peng T, Free P, Fernig DG, Lim S, Tomczak N. Specific Internalisation of Gold Nanoparticles into Engineered Porous Protein Cages via Affinity Binding. PLoS One 2016; 11:e0162848. [PMID: 27622533 PMCID: PMC5021291 DOI: 10.1371/journal.pone.0162848] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 08/29/2016] [Indexed: 12/20/2022] Open
Abstract
Porous protein cages are supramolecular protein self-assemblies presenting pores that allow the access of surrounding molecules and ions into their core in order to store and transport them in biological environments. Protein cages’ pores are attractive channels for the internalisation of inorganic nanoparticles and an alternative for the preparation of hybrid bioinspired nanoparticles. However, strategies based on nanoparticle transport through the pores are largely unexplored, due to the difficulty of tailoring nanoparticles that have diameters commensurate with the pores size and simultaneously displaying specific affinity to the cages’ core and low non-specific binding to the cages’ outer surface. We evaluated the specific internalisation of single small gold nanoparticles, 3.9 nm in diameter, into porous protein cages via affinity binding. The E2 protein cage derived from the Geobacillus stearothermophilus presents 12 pores, 6 nm in diameter, and an empty core of 13 nm in diameter. We engineered the E2 protein by site-directed mutagenesis with oligohistidine sequences exposing them into the cage’s core. Dynamic light scattering and electron microscopy analysis show that the structures of E2 protein cages mutated with bis- or penta-histidine sequences are well conserved. The surface of the gold nanoparticles was passivated with a self-assembled monolayer made of a mixture of short peptidols and thiolated alkane ethylene glycol ligands. Such monolayers are found to provide thin coatings preventing non-specific binding to proteins. Further functionalisation of the peptide coated gold nanoparticles with Ni2+ nitrilotriacetic moieties enabled the specific binding to oligohistidine tagged cages. The internalisation via affinity binding was evaluated by electron microscopy analysis. From the various mutations tested, only the penta-histidine mutated E2 protein cage showed repeatable and stable internalisation. The present work overcomes the limitations of currently available approaches and provides a new route to design tailored and well-controlled hybrid nanoparticles.
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Affiliation(s)
- David Paramelle
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
- * E-mail: (DP); (NT); (SL)
| | - Tao Peng
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
| | - Paul Free
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
| | - David G. Fernig
- Department of Biochemistry, Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Sierin Lim
- Division of Bioengineering, School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore, Singapore
- NTU-Northwestern Institute for Nanomedicine, Nanyang Technology University, Singapore, Singapore
- * E-mail: (DP); (NT); (SL)
| | - Nikodem Tomczak
- Institute of Materials Research and Engineering, A*STAR (Agency for Science, Technology and Research), Singapore, Singapore
- * E-mail: (DP); (NT); (SL)
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Alshammari A, Posner MG, Upadhyay A, Marken F, Bagby S, Ilie A. A Modular Bioplatform Based on a Versatile Supramolecular Multienzyme Complex Directly Attached to Graphene. ACS APPLIED MATERIALS & INTERFACES 2016; 8:21077-21088. [PMID: 27447357 DOI: 10.1021/acsami.6b05453] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Developing generic strategies for building adaptable or multifunctional bioplatforms is challenging, in particular because protein immobilization onto surfaces often causes loss of protein function and because multifunctionality usually necessitates specific combinations of heterogeneous elements. Here, we introduce a generic, modular bioplatform construction strategy that uses cage-like supramolecular multienzyme complexes as highly adaptable building blocks immobilized directly and noncovalently on graphene. Thermoplasma acidophilum dihydrolipoyl acyltransferase (E2) supramolecular complexes organize as a monolayer or can be controllably transferred onto graphene, preserving their supramolecular form with specific molecular recognition capability and capacity for engineering multifunctionality. This E2-graphene platform can bind enzymes (here, E1, E2's physiological partner) without loss of enzyme function; in this test case, E1 catalytic activity was detected on E2-graphene over 6 orders of magnitude in substrate concentration. The E2-graphene platform can be multiplexed via patterned cotransfer of differently modified E2 complexes. As the E2 complexes are robust and highly customizable, E2-graphene is a platform onto which multiple functionalities can be built.
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Affiliation(s)
- Abeer Alshammari
- Department of Physics, King Saud University , Riyadh 11451, Saudi Arabia
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Ennen F, Fenner P, Boye S, Lederer A, Komber H, Voit B, Appelhans D. Sphere-Like Protein–Glycopolymer Nanostructures Tailored by Polyassociation. Biomacromolecules 2015; 17:32-45. [DOI: 10.1021/acs.biomac.5b00975] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Franka Ennen
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Philipp Fenner
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Susanne Boye
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
| | - Albena Lederer
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
| | - Brigitte Voit
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
- Technische Universität Dresden, 01062 Dresden, Germany
| | - Dietmar Appelhans
- Leibniz-Institut für Polymerforschunng Dresden e.V., Hohe Straße 6, D-01069 Dresden, Germany
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Shen WJ, Zhuo Y, Chai YQ, Yang ZH, Han J, Yuan R. Enzyme-free electrochemical immunosensor based on host-guest nanonets catalyzing amplification for procalcitonin detection. ACS APPLIED MATERIALS & INTERFACES 2015; 7:4127-4134. [PMID: 25629216 DOI: 10.1021/am508137t] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
An enzyme-free electrochemical immunosensor based on the host-guest nanonets of N,N-bis(ferrocenoyl)-diaminoethane/β-cyclodextrins/poly(amidoamine) dendrimer-encapsulated Au nanoparticles (Fc-Fc/β-CD/PAMAM-Au) for procalcitonin (PCT) detection has been developed in this study. The signal probe was constructed as follows: amine-terminated β-CD was adsorbed to PAMAM-Au first, and then the prepared Fc-Fc was recognized by the β-CD to form stable host-guest nanonets. Next, secondary antibodies (Ab2) were attached into the formed netlike nanostructure of Fc-Fc/β-CD/PAMAM-Au by chemical absorption between PAMAM-Au and -NH2 of β-CD. Herein, the PAMAM-Au act not only as nanocarriers for anchoring large amounts of the β-CD and Ab2 but also as nanocatalysts to catalyze the oxidation of ascorbic acid (AA) for signal amplification. Moreover, the Fc-Fc could be stably immobilized by the hydrophobic inner cavity of β-CD as well as improving solubility by the hydrophilic exterior of β-CD. With the unique structure of two ferrocene units, Fc-Fc not only affords more electroactive groups to make the electrochemical response more sensitive but also plays a role of combining dispersive β-CD-functionalized PAMAM-Au to form the netlike nanostructure. Furthermore, Fc-Fc exhibits good catalytic activity for AA oxidation. When the detection solution contained AA, the synergetic catalysis of PAMAM-Au and Fc-Fc to AA oxidation could be obtained, realizing enzyme-free signal amplification. The proposed immunosensor provided a linear range from 1.80 pg/mL to 500 ng/mL for PCT detection and a detection limit of 0.36 pg/mL under optimal experimental conditions. Moreover, the immunosensor has shown potential application in clinical detection of PCT.
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Affiliation(s)
- Wen-Jun Shen
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University , Chongqing 400715, People's Republic of China
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Chen Q, Sun Q, Molino NM, Wang SW, Boder ET, Chen W. Sortase A-mediated multi-functionalization of protein nanoparticles. Chem Commun (Camb) 2015; 51:12107-10. [DOI: 10.1039/c5cc03769g] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new strategy was developed to create multi-functionalizaton of protein nanoparticles using Sortase A-mediated ligation, resulting in modified protein nanoparticles that are both thermally responsive and catalytic active.
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Affiliation(s)
- Qi Chen
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
| | - Qing Sun
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
| | - Nicholas M. Molino
- Department of Chemical Engineering and Materials Science
- University of California
- Irvine
- USA
| | - Szu-Wen Wang
- Department of Chemical Engineering and Materials Science
- University of California
- Irvine
- USA
| | - Eric T. Boder
- Department of Chemical and Biomolecular Engineering
- University of Tennessee
- Knoxville
- USA
| | - Wilfred Chen
- Department of Chemical and Biomolecular Engineering
- University of Delaware
- Newark
- USA
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