1
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Alotaibi AF, Rodriguez BJ, Rice JH. A nano-imprinted graphene oxide-cellulose composite as a SERS active substrate. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024; 16:3385-3391. [PMID: 38751361 DOI: 10.1039/d4ay00749b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Cellulose is a sustainable material capable of forming optically active nanoarrays on its surface. We created a composite of cellulose acetate (CA) and graphene oxide (GO), by mixing GO (0.1 mg mL-1) into CA. This was then imprinted with nanoscale surface features that form Bragg-like modes in resonance with the excitation laser when a thin layer of silver is vapor deposited onto the surface of the substrate. The addition of GO leads to improved surface-enhanced Raman scattering (SERS) signal strengths, obtaining an average SERS signal increase of 1.4-fold following the inclusion of GO. The combination of photonic and electromagnetic effects with charge transfer-based processes that support the SERS chemical mechanism and the possible presence of electromagnetic hot spots from the roughened surface results in an enhanced SERS signal strength when GO is added. This work shows the potential for nanoimprinted graphene oxide/cellulose acetate composites as flexible sensor platforms to detect target molecules.
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Affiliation(s)
- Aeshah F Alotaibi
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland.
- Department of Physics, College of Science and Humanities, Shaqra University, Shaqra, Kingdom of Saudi Arabia
| | - Brian J Rodriguez
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland.
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - James H Rice
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland.
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2
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Almohammed S, Finlay A, Duleba D, Cosgrave S, Johnson R, Rodriguez BJ, Rice JH. Piezoelectric Peptide Nanotube Substrate Sensors Activated through Sound Wave Energy. ACS MATERIALS LETTERS 2024; 6:1863-1869. [PMID: 38726043 PMCID: PMC11077579 DOI: 10.1021/acsmaterialslett.3c01613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 04/02/2024] [Accepted: 04/04/2024] [Indexed: 05/12/2024]
Abstract
The use of sustainable and safe materials is increasingly in demand for the creation of photonic-based technology. Piezoelectric peptide nanotubes make up a class of safe and sustainable materials. We show that these materials can generate piezoelectric charge through the deformation of oriented molecular dipoles when the tube length is flexed through the application of sound energy. Through the combination of peptide nanotubes with plasmon active nanomaterials, harvesting of low-frequency acoustic sound waves was achieved. This effect was applied to boost surface-enhanced Raman scattering signal detection of analytes, including glucose. This work demonstrates the potential of utilizing sound to boost sensing by using piezoelectric materials.
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Affiliation(s)
- Sawsan Almohammed
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - Allan Finlay
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - Dominik Duleba
- School
of Chemistry, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - Shane Cosgrave
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - Robert Johnson
- School
of Chemistry, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - Brian J. Rodriguez
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
| | - James H. Rice
- School
of Physics, University College Dublin, Belfield, Dublin 4 D04 V1W8, Ireland
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3
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Xu L, Chen M, Cui Q, Wang C, Zhang M, Zheng L, Li S, Zhang H, Liang G. Ultra-clean ternary Au/Ag/AgCl nanoclusters favoring cryogenic temperature-boosted broadband SERS ultrasensitive detection. OPTICS EXPRESS 2023; 31:26474-26495. [PMID: 37710508 DOI: 10.1364/oe.495426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 07/13/2023] [Indexed: 09/16/2023]
Abstract
Exploring multifunctional surface-enhanced Raman scattering (SERS) substrates with high sensitivity, broadband response property and reliable practicability should be required for ultrasensitive molecular detection in complex environments, which is heavily dependent on the photo-induced charge transfer (PICT) efficiency realized on the desirable nano-architectures. Herein, we introduce ultra-clean ternary Au/Ag/AgCl nanoclusters (NCs) with broadband resonance crossing the visible light to near-infrared region created by one step laser irradiation of mixed metal ion solution. Interestingly, the surface defects and interaction among these unique cluster-like ternary nanostructures would be further enhanced by thermal annealing treatment at 300°C, providing higher broadband SERS activities than the reference ternary nanoparticles under 457, 532, 633, 785, and 1064 nm wavelengths excitation. More importantly, the further promoted SERS activities of the resultant Au/Ag/AgCl NCs with achievable ∼5-fold enhancement than the initial one can be conventionally realized by simplistically declining the temperature from normal 20°C to cryogenic condition at about -196°C, due to the lower temperature-suppressed non-radiative recombination of lattice thermal phonons and photogenerated electrons. The cryogenic temperature-boosted SERS of the resultant Au/Ag/AgCl NCs enables the limit of detection (LOD) of folic acid (FA) biomolecules to be achieved as low as 10-12 M, which is obviously better than that of 10-9 M at room temperature condition. Overall, the smart Au/Ag/AgCl NCs-based broadband SERS sensor provides a new avenue for ultrasensitive biomolecular monitoring at cryogenic condition.
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4
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Alanazi AT, Alotaibi A, Alqahtani M, Rice JH. Dichalcogenide and Metal Oxide Semiconductor-Based Composite to Support Plasmonic Catalysis. ACS OMEGA 2023; 8:6318-6324. [PMID: 36844575 PMCID: PMC9947995 DOI: 10.1021/acsomega.2c06337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
Nanocomposites comprising plasmon active metal nanostructures and semiconductors have been used to control the charge states in the metal to support catalytic activity. In this context dichalcogenides when combined with metal oxides offer the potential to control charge states in plasmonic nanomaterials. Using a model plasmonic mediated oxidation reaction p-amino thiophenol ↔ p-nitrophenol, we show that through the introduction of transition metal dichalcogenide nanomaterial, reaction outcomes can be influenced, achieved through controlling the occurrence of the reaction intermediate dimercaptoazobenzene by opening new electron transfer routes in a semiconductor-plasmonic system. This study demonstrates the ability to control plasmonic reactions by carefully controlling the choice of semiconductors.
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Affiliation(s)
- Ahmed T. Alanazi
- School
of Physics, University College Dublin, Belfield, 4 Dublin, Ireland
| | - Aeshah Alotaibi
- School
of Physics, University College Dublin, Belfield, 4 Dublin, Ireland
| | - Mahdi Alqahtani
- King
Abdulaziz City for Science and Technology (KACST), Riyadh 12371, Saudi Arabia
| | - James H. Rice
- School
of Physics, University College Dublin, Belfield, 4 Dublin, Ireland
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5
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Sun X. Glucose detection through surface-enhanced Raman spectroscopy: A review. Anal Chim Acta 2022; 1206:339226. [PMID: 35473867 DOI: 10.1016/j.aca.2021.339226] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/20/2021] [Accepted: 10/27/2021] [Indexed: 12/13/2022]
Abstract
Glucose detection is of vital importance to diabetes diagnosis and treatment. Optical approaches in glucose sensing have received much attention in recent years due to the relatively low cost, portable, and mini-invasive or non-invasive potentials. Surface enhanced Raman spectroscopy (SERS) endows the benefits of extremely high sensitivity because of enhanced signals and specificity due to the fingerprint of molecules of interest. However, the direct detection of glucose through SERS was challenging because of poor adsorption of glucose on bare metals and low cross section of glucose. In order to address these challenges, several approaches were proposed and utilized for glucose detection through SERS. This review article mainly focuses on the development of surface enhanced Raman scattering based glucose sensors in recent 10 years. The sensing mechanisms, rational design and sensing properties to glucose are reviewed. Two strategies are summarized as intrinsic sensing and extrinsic sensing. Four general categories for glucose sensing through SERS are discussed including SERS active platform, partition layer functionalized surface, boronic acid based sensors, and enzymatic reaction based biosensors. Finally, the challenges and outlook for SERS based glucose sensors are also presented.
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Affiliation(s)
- Xiangcheng Sun
- Department of Chemical Engineering, Rochester Institute of Technology, Rochester, NY, 14623, United States.
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6
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Almohammed S, Fularz A, Kanoun MB, Goumri-Said S, Aljaafari A, Rodriguez BJ, Rice JH. Structural Transition-Induced Raman Enhancement in Bioinspired Diphenylalanine Peptide Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:12504-12514. [PMID: 35254049 PMCID: PMC8931724 DOI: 10.1021/acsami.1c22770] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
Semiconducting materials are increasingly proposed as alternatives to noble metal nanomaterials to enhance Raman scattering. We demonstrate that bioinspired semiconducting diphenylalanine peptide nanotubes annealed through a reported structural transition can support Raman detection of 10-7 M concentrations for a range of molecules including mononucleotides. The enhancement is attributed to the introduction of electronic states below the conduction band that facilitate charge transfer to the analyte molecule. These results show that organic semiconductor-based materials can serve as platforms for enhanced Raman scattering for chemical sensing. As the sensor is metal-free, the enhancement is achieved without the introduction of electromagnetic surface-enhanced Raman spectroscopy.
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Affiliation(s)
- Sawsan Almohammed
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College,
Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Agata Fularz
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Mohammed Benali Kanoun
- Department
of Physics, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
| | - Souraya Goumri-Said
- Physics
Department, College of Science and General Studies, Alfaisal University, P.O. Box 50927, Riyadh 11533, Saudi Arabia
| | - Abdullah Aljaafari
- Department
of Physics, College of Science, King Faisal
University, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
| | - Brian J. Rodriguez
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College,
Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - James H. Rice
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
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7
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Mhlanga N, Ntho TA, Chauke H, Sikhwivhilu L. Surface-Enhanced Raman Spectroscopy Substrates: Plasmonic Metals to Graphene. Front Chem 2022; 10:832282. [PMID: 35355787 PMCID: PMC8959762 DOI: 10.3389/fchem.2022.832282] [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: 12/09/2021] [Accepted: 01/20/2022] [Indexed: 11/29/2022] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS), a marvel that uses surfaces to enhance conventional Raman signals, is proposed for a myriad of applications, such as diagnosis of diseases, pollutants, and many more. The substrates determine the SERS enhancement, and plasmonic metallic nanoparticles such as Au, Ag, and Cu have dominated the field. However, the last decades have failed to translate SERS prototypes into real-life applications. Irreproducibility on the SERS signal that stems from the roughened SERS substrates is the main causative factor for this observation. To mitigate irreproducibility several two-dimensional (2-D) substrates have been sought for use as possible alternatives. Application of 2-D graphene substrates in Raman renders graphene-enhanced Raman spectroscopy (GERS). This account used density functional theory (DFT) substantiated with experimental Raman to compare the enhancement capabilities of plasmonic Au nanoparticles (SERS), graphene substrate (GERS), and coupling of the two SERS and GERS substrates. The DFT also enabled the study of the SERS and GERS systems molecular orbital to gain insight into their mechanisms. The amalgamation of the SERS and GERS occurrence, i.e., graphene doped with plasmonic metallic substrates showed a pronounced enhancement and matched the Au-driven enhancement emanating from both electromagnetic and charge transfer SERS and GERS mechanisms.
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Affiliation(s)
- Nikiwe Mhlanga
- DSI/Mintek Nanotechnology Innovation Centre, Randburg, South Africa
- Advanced Materials Division, Mintek, Randburg, South Africa
- *Correspondence: Nikiwe Mhlanga,
| | - Thabang A. Ntho
- DSI/Mintek Nanotechnology Innovation Centre, Randburg, South Africa
- Advanced Materials Division, Mintek, Randburg, South Africa
| | - Hleko Chauke
- DSI/Mintek Nanotechnology Innovation Centre, Randburg, South Africa
- Advanced Materials Division, Mintek, Randburg, South Africa
- Department of Chemistry, University of Witwatersrand, Johannesburg, South Africa
| | - Lucky Sikhwivhilu
- DSI/Mintek Nanotechnology Innovation Centre, Randburg, South Africa
- Advanced Materials Division, Mintek, Randburg, South Africa
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8
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Joby JP, Das S, Pinapati P, Rogez B, Baffou G, Tiwari DK, Cherukulappurath S. Optically-assisted thermophoretic reversible assembly of colloidal particles and E. coli using graphene oxide microstructures. Sci Rep 2022; 12:3657. [PMID: 35256647 PMCID: PMC8901786 DOI: 10.1038/s41598-022-07588-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 02/15/2022] [Indexed: 02/02/2023] Open
Abstract
Optically-assisted large-scale assembly of nanoparticles have been of recent interest owing to their potential in applications to assemble and manipulate colloidal particles and biological entities. In the recent years, plasmonic heating has been the most popular mechanism to achieve temperature hotspots needed for extended assembly and aggregation. In this work, we present an alternative route to achieving strong thermal gradients that can lead to non-equilibrium transport and assembly of matter. We utilize the excellent photothermal properties of graphene oxide to form a large-scale assembly of silica beads. The formation of the assembly using this scheme is rapid and reversible. Our experiments show that it is possible to aggregate silica beads (average size 385 nm) by illuminating thin graphene oxide microplatelet by a 785 nm laser at low intensities of the order of 50-100 µW/µm2. We further extend the study to trapping and photoablation of E. coli bacteria using graphene oxide. We attribute this aggregation process to optically driven thermophoretic forces. This scheme of large-scale assembly is promising for the study of assembly of matter under non-equilibrium processes, rapid concentration tool for spectroscopic studies such as surface-enhanced Raman scattering and for biological applications.
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Affiliation(s)
| | - Suman Das
- Department of Biotechnology, Goa University, Taleigao Plateau, Goa, 403206, India
| | - Praveenkumar Pinapati
- School of Physical and Applied Sciences, Goa University, Taleigao Plateau, Goa, 403206, India
| | - Benoît Rogez
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Guillaume Baffou
- Institut Fresnel, CNRS, Aix Marseille University, Centrale Marseille, Marseille, France
| | - Dhermendra K Tiwari
- Department of Biotechnology, Goa University, Taleigao Plateau, Goa, 403206, India.
| | - Sudhir Cherukulappurath
- School of Physical and Applied Sciences, Goa University, Taleigao Plateau, Goa, 403206, India.
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9
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Almohammed S, K. Orhan O, Daly S, O’Regan DD, Rodriguez BJ, Casey E, Rice JH. Electric Field Tunability of Photoluminescence from a Hybrid Peptide-Plasmonic Metal Microfabricated Chip. JACS AU 2021; 1:1987-1995. [PMID: 35574042 PMCID: PMC8611722 DOI: 10.1021/jacsau.1c00323] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Indexed: 06/14/2023]
Abstract
Enhancement of fluorescence through the application of plasmonic metal nanostructures has gained substantial research attention due to the widespread use of fluorescence-based measurements and devices. Using a microfabricated plasmonic silver nanoparticle-organic semiconductor platform, we show experimentally the enhancement of fluorescence intensity achieved through electro-optical synergy. Fluorophores located sufficiently near silver nanoparticles are combined with diphenylalanine nanotubes (FFNTs) and subjected to a DC electric field. It is proposed that the enhancement of the fluorescence signal arises from the application of the electric field along the length of the FFNTs, which stimulates the pairing of low-energy electrons in the FFNTs with the silver nanoparticles, enabling charge transport across the metal-semiconductor template that enhances the electromagnetic field of the plasmonic nanoparticles. Many-body perturbation theory calculations indicate that, furthermore, the charging of silver may enhance its plasmonic performance intrinsically at particular wavelengths, through band-structure effects. These studies demonstrate for the first time that field-activated plasmonic hybrid platforms can improve fluorescence-based detection beyond using plasmonic nanoparticles alone. In order to widen the use of this hybrid platform, we have applied it to enhance fluorescence from bovine serum albumin and Pseudomonas fluorescens. Significant enhancement in fluorescence intensity was observed from both. The results obtained can provide a reference to be used in the development of biochemical sensors based on surface-enhanced fluorescence.
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Affiliation(s)
- Sawsan Almohammed
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Okan K. Orhan
- School
of Physics, AMBER, and CRANN Institute, Trinity College Dublin, The University of Dublin, Dublin D02 PN40, Ireland
| | - Sorcha Daly
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - David D. O’Regan
- School
of Physics, AMBER, and CRANN Institute, Trinity College Dublin, The University of Dublin, Dublin D02 PN40, Ireland
| | - Brian J. Rodriguez
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
- Conway
Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - Eoin Casey
- School
of Chemical and Bioprocess Engineering, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
| | - James H. Rice
- School
of Physics, University College Dublin, Belfield, Dublin D04 V1W8, Ireland
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10
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Rozhin P, Charitidis C, Marchesan S. Self-Assembling Peptides and Carbon Nanomaterials Join Forces for Innovative Biomedical Applications. Molecules 2021; 26:4084. [PMID: 34279424 PMCID: PMC8271590 DOI: 10.3390/molecules26134084] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/30/2021] [Accepted: 07/02/2021] [Indexed: 02/07/2023] Open
Abstract
Self-assembling peptides and carbon nanomaterials have attracted great interest for their respective potential to bring innovation in the biomedical field. Combination of these two types of building blocks is not trivial in light of their very different physico-chemical properties, yet great progress has been made over the years at the interface between these two research areas. This concise review will analyze the latest developments at the forefront of research that combines self-assembling peptides with carbon nanostructures for biological use. Applications span from tissue regeneration, to biosensing and imaging, and bioelectronics.
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Affiliation(s)
- Petr Rozhin
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy;
| | - Costas Charitidis
- School of Chemical Engineering, National Technical University of Athens, Iroon Polytechneiou 9, Zografou, 157 80 Athens, Greece;
| | - Silvia Marchesan
- Chemical and Pharmaceutical Sciences Department, University of Trieste, 34127 Trieste, Italy;
- INSTM, Unit of Trieste, 34127 Trieste, Italy
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11
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Label-free impedimetric miRNA-192 genosensor platform using graphene oxide decorated peptide nanotubes composite. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106218] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Dehghani A, Bahlakeh G, Ramezanzadeh B. Synthesis of a non-hazardous/smart anti-corrosion nano-carrier based on beta-cyclodextrin-zinc acetylacetonate inclusion complex decorated graphene oxide (β-CD-ZnA-MGO). JOURNAL OF HAZARDOUS MATERIALS 2020; 398:122962. [PMID: 32768828 DOI: 10.1016/j.jhazmat.2020.122962] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/01/2020] [Accepted: 05/12/2020] [Indexed: 06/11/2023]
Abstract
Recently, the high research considerations have been devoted to designing smart coatings with self-healing propensity along with improved anti-corrosion properties, durability, and effectiveness. In the present work, a novel nano-container, namely beta-cyclodextrin (β-CD), was introduced and applied for encapsulating and subsequent controlled release of a metal-organic inhibitor, namely zinc acetylacetonate (ZnA) in the polymeric matrix. The smart release is another principal object which has been lacked in recent reports. For this aim, graphene oxide nanoparticles were employed to carry the inclusion complexes (β-CD-ZnA) to the defected zones of coatings. FT-IR, Raman, XRD, and UV-vis experiments ascertained that the β-CD-ZnA inclusion complex successfully adsorbed onto the GO sheets modified by 3-aminopropyl tri-ethoxysilane (MGO). The electrochemical inspections (i.e., potentiodynamic polarization and EIS) proved that the β-CD-ZnA-MGO particles could remarkably inhibit the steel corrosion in 3.5 % NaCl solution via mixed cathodic/anodic retardation mechanisms with approximately 93 % efficiency after 48 h metal exposure. It was also found that the corrosion protection performance of the polymeric matrix loaded by β-CD-ZnA-MGO nano-particles enhanced markedly, assigning to the significant epoxy defect coverage by β-CD-ZnA. The intelligent transmission was affirmed by EDS-mapping analysis in the defected regions of epoxy coating. The high quantity of the Zn element ensured the successful adsorption of the ZnA on the metal surface. The damage, as well as the delaminated degrees of the un-scratched epoxy coating, was estimated by the EIS experiment outcomes. Achievements reflected that the presence of β-CD-ZnA-MGO nano-filler in the epoxy resin matrix significantly reduced the electrolyte/ion diffusion. Furthermore, the computational results elucidated from DFT-D approach clarified the stronger β-CD-ZnA affinity towards the GO adsorbent compared with the pure β-CD, supporting the experimental findings.
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Affiliation(s)
- Ali Dehghani
- Department of Chemical Engineering, Faculty of Engineering, Golestan University, Aliabad Katoul, Iran
| | - Ghasem Bahlakeh
- Department of Chemical Engineering, Faculty of Engineering, Golestan University, Aliabad Katoul, Iran.
| | - Bahram Ramezanzadeh
- Department of Surface Coatings and Corrosion, Institute for Color Science and Technology, P.O. Box 16765-654, Tehran, Iran
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13
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Almohammed S, Fularz A, Zhang F, Alvarez-Ruiz D, Bello F, O'Regan DD, Rodriguez BJ, Rice JH. Flexing Piezoelectric Diphenylalanine-Plasmonic Metal Nanocomposites to Increase SERS Signal Strength. ACS APPLIED MATERIALS & INTERFACES 2020; 12:48874-48881. [PMID: 33054174 DOI: 10.1021/acsami.0c15498] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Piezoelectric quasi-1D peptide nanotubes and plasmonic metal nanoparticles are combined to create a flexible and self-energized surface-enhanced Raman spectroscopy (SERS) substrate that strengthens SERS signal intensities by over an order of magnitude compared to an unflexed substrate. The platform is used to sense bovine serum albumin, lysozyme, glucose, and adenine. Finite-element electromagnetic modeling indicates that the signal enhancement results from piezoelectric-induced charge, which is mechanically activated via substrate bending. The results presented here open the possibility of using peptide nanotubes on conformal substrates for in situ SERS detection.
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Affiliation(s)
- Sawsan Almohammed
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Agata Fularz
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - Fengyuan Zhang
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - Diana Alvarez-Ruiz
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
| | - Frank Bello
- School of Physics, AMBER and CRANN Institute, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - David D O'Regan
- School of Physics, AMBER and CRANN Institute, Trinity College Dublin, The University of Dublin, Dublin 2, Ireland
| | - Brian J Rodriguez
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
- Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Belfield, Dublin 4, Ireland
| | - James H Rice
- School of Physics, University College Dublin, Belfield, Dublin 4, Ireland
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14
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Zhang G, Wang J, Wang Y, Qi W, Su R, He Z. Self-Assembly of Ferrocene-Phenylalanine@Graphene Oxide Hybrid Hydrogels for Dopamine Detection. Chempluschem 2020; 85:2341-2348. [PMID: 33094928 DOI: 10.1002/cplu.202000579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 10/05/2020] [Indexed: 12/17/2022]
Abstract
The effect of graphene oxide (GO) is explored on the self-assembly behavior of ferrocene-L-phenylalanine (Fc-F) in solution. The assembly behavior of Fc-F in GO dispersions at different concentrations and pH values was systematically investigated. At pH 8, a stable hybrid material could be formed by facile and elaborate supramolecular assembly. Moreover, the concentration of GO could also be used to adjust the mechanical strength of the hybrid hydrogel. Increasing the concentration of GO in the assembly process, a hydrogel with better mechanical strength could be obtained. The storage modulus could be up to 6.3 kPa by increasing the GO concentration to 1 mg/mL. Finally, the dopamine concentration in the solution could be detected in a high accuracy by loading the hybrid hydrogel onto the electrode surface. The R2 of linear fitting equation could reach 0.9915 in the range of 10-200 μmol/L, indicating that it has the potential as biosensing electrode material.
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Affiliation(s)
- Gong Zhang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Jiahui Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Yuefei Wang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science, and Desalination Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.,Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science, and Desalination Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Rongxin Su
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China.,Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China.,Tianjin Key Laboratory of Membrane Science, and Desalination Technology, Tianjin University, Tianjin, 300072, P. R. China
| | - Zhimin He
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
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Lv P, Chen Z, Ma Z, Mao J, Han B, Han D, Zhang YL. Ag nanoparticle ink coupled with graphene oxide cellulose paper: a flexible and tunable SERS sensing platform. OPTICS LETTERS 2020; 45:4208-4211. [PMID: 32735260 DOI: 10.1364/ol.400131] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 07/06/2020] [Indexed: 06/11/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is highly promising for ultra-sensitive detection in a series of applications. Although extensive advances have been achieved in SERS technologies, the preparation of highly efficient SERS substrates still suffers from several limitations, including complex preparation procedures, high cost, and instability for long time storage. To address these problems, we report a novel, to the best of our knowledge, SERS platform that combines graphene oxide (GO) and cellulose composite paper with colloidal silver nanoparticle (Ag NP) ink. As an efficient substrate, the GO and cellulose composite paper that features hierarchical micro-nanostructures and improved interaction with target molecules can be fabricated on a large scale, and the Ag NP ink can be well stored, avoiding being oxidized in ambient conditions. In this way, our SERS platform not only reduces the cost, but also improved the stability. The sensitivity, reproducibility, and tunable SERS detection performance were evaluated using rhodamine 6G as probing molecules. To demonstrate the capability of our SERS platform in practical analysis, the SERS spectra of two monosodium salt solutions of different concentrations have been collected. The SERS platform has revealed great potential for practical application of SERS technologies.
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16
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Richter Ł, Albrycht P, Księżopolska-Gocalska M, Poboży E, Bachliński R, Sashuk V, Paczesny J, Hołyst R. Fast and efficient deposition of broad range of analytes on substrates for surface enhanced Raman spectroscopy. Biosens Bioelectron 2020; 156:112124. [DOI: 10.1016/j.bios.2020.112124] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 02/18/2020] [Accepted: 02/22/2020] [Indexed: 12/14/2022]
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17
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Almohammed S, Rodriguez BJ, Rice JH. Nucleobase sensing using highly-sensitive surface-enhanced Raman spectroscopy templates comprising organic semiconductor peptide nanotubes and metal nanoparticles. SENSING AND BIO-SENSING RESEARCH 2019. [DOI: 10.1016/j.sbsr.2019.100287] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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