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Hassan A, de Sousa DS, Bertaglia T, Crespilho FN. Enhanced label-free detection of proteins on Au nanoparticle micropatterns for surface-enhanced infrared absorption spectroscopy. Chem Commun (Camb) 2024. [PMID: 38910552 DOI: 10.1039/d4cc01320d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
A label-free one-step lithographically masked deposition technique was implemented for the fabrication of gold nanoparticle (Au NP) micropatterns. These micropatterns serve as active substrates for surface-enhanced infrared absorption spectroscopy (SEIRAS) and exhibit a substantial increase in the IR signal upon adsorption of multiple proteins compared to untreated surfaces. Micro-FTIR chemical imaging was conducted to evaluate the efficacy of Au NP micropatterns as singular enhancers for SEIRAS across diverse IR-active substrates demonstrating a promising application for the detection of proteins at low concentrations within biological fluids.
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Affiliation(s)
- Ayaz Hassan
- Interdisciplinary Research Center in Biomedical Materials (IRCBM), COMSATS University Islamabad, Lahore Campus, 1.5 KM defense Road Off Raiwand Road Lahore, Pakistan.
| | - Daniel S de Sousa
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
| | - Thiago Bertaglia
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
| | - Frank N Crespilho
- São Carlos Institute of Chemistry, University of São Paulo, São Carlos, SP 13560-970, Brazil.
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2
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Stuart DD, Van Zant W, Valiulis S, Malinick AS, Hanson V, Cheng Q. Trends in surface plasmon resonance biosensing: materials, methods, and machine learning. Anal Bioanal Chem 2024:10.1007/s00216-024-05367-w. [PMID: 38839686 DOI: 10.1007/s00216-024-05367-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 05/13/2024] [Accepted: 05/27/2024] [Indexed: 06/07/2024]
Abstract
Surface plasmon resonance (SPR) proves to be one of the most effective methods of label-free detection and has been integral for the study of biomolecular interactions and the development of biosensors. This trend delves into the latest SPR research and progress built upon the Kretschmann configuration, a pivotal platform, and highlights three key developments that have enhanced the capabilities of the technique. We will first cover a range of explorations of novel plasmonic materials that have shaped SPR performance. Innovative signal transduction and collection, which leverages traditional materials and emerging alternatives, will then be discussed. Finally, the evolving landscape of data analysis, including the integration of machine learning algorithms to navigate complex SPR datasets, will be reviewed. We will also discuss the implementation of these improvements that have enabled new biosensing functions. These advancements not only pave the way for enhanced biosensing in general but also open new avenues for the technique to play a more significant role in research concerning human health.
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Affiliation(s)
- Daniel D Stuart
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Westley Van Zant
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Santino Valiulis
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | | | - Victor Hanson
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, CA, 92521, USA.
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3
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Giarola JF, Santos J, Estevez MC, Ventura S, Pallarès I, Lechuga LM. An α-helical peptide-based plasmonic biosensor for highly specific detection of α-synuclein toxic oligomers. Anal Chim Acta 2024; 1304:342559. [PMID: 38637056 DOI: 10.1016/j.aca.2024.342559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/20/2024] [Accepted: 03/28/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND α-Synuclein (αS) aggregation is the main neurological hallmark of a group of neurodegenerative disorders, collectively referred to as synucleinopathies, of which Parkinson's disease (PD) is the most prevalent. αS oligomers are elevated in the cerebrospinal fluid (CSF) of PD patients, standing as a biomarker for disease diagnosis. However, methods for early PD detection are still lacking. We have recently identified the amphipathic 22-residue peptide PSMα3 as a high-affinity binder of αS toxic oligomers. PSMα3 displayed excellent selectivity and reproducibility, binding to αS toxic oligomers with affinities in the low nanomolar range and without detectable cross-reactivity with functional monomeric αS. RESULTS In this work, we leveraged these PSMα3 unique properties to design a plasmonic-based biosensor for the direct detection of toxic oligomers under label-free conditions. SIGNIFICANCE AND NOVELTY We describe the integration of the peptide in a lab-on-a-chip plasmonic platform suitable for point-of-care measurements of αS toxic oligomers in CSF samples in real-time and at an affordable cost, providing an innovative biosensor for PD early diagnosis in the clinic.
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Affiliation(s)
- Juliana Fátima Giarola
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
| | - Jaime Santos
- Institut de Biotecnologia I Biomedicina and Departament de Bioquímica I Biologia Molecular, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - M-Carmen Estevez
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain.
| | - Salvador Ventura
- Institut de Biotecnologia I Biomedicina and Departament de Bioquímica I Biologia Molecular, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain
| | - Irantzu Pallarès
- Institut de Biotecnologia I Biomedicina and Departament de Bioquímica I Biologia Molecular, Universitat Autònoma de Barcelona, 08193, Barcelona, Spain.
| | - Laura M Lechuga
- Nanobiosensors and Bioanalytical Applications Group (NanoB2A), Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BBN and BIST, Campus UAB, Bellaterra, 08193, Barcelona, Spain
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4
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Eser E, Ekiz OÖ, Ekiz Hİ. Utilizing fab fragment-conjugated surface plasmon resonance-based biosensor for detection of Salmonella Enteritidis. J Mol Recognit 2024; 37:e3078. [PMID: 38400609 DOI: 10.1002/jmr.3078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/05/2024] [Accepted: 02/11/2024] [Indexed: 02/25/2024]
Abstract
Although antibodies, a key element of biorecognition, are frequently used as biosensor probes, the use of these large molecules can lead to adverse effects. Fab fragments can be reduced to allow proper antigen-binding orientation via thiol groups containing Fab sites that can directly penetrate Au sites chemically. In this study, the ability of the surface plasmon resonance (SPR) sensor to detect Salmonella was studied. Tris(2-carboxyethyl)phosphine was used as a reducing agent to obtain half antibody fragments. Sensor surface was immobilized with antibody, and bacteria suspensions were injected from low to high concentrations. Response units were changed by binding first reduced antibody fragments, then bacteria. The biosensor was able to determine the bacterial concentrations between 103 and 108 CFU/mL. Based on these results, the half antibody fragmentation method can be generalized for faster, label-free, sensitive, and selective detection of other bacteria species.
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Affiliation(s)
- Esma Eser
- Department of Food Engineering, Canakkale Onsekiz Mart University, Çanakkale, Turkey
| | - Okan Öner Ekiz
- Department of Material Science and Engineering, OSTİM Teknical University, Ankara, Turkey
- Nanodev Scientific, Bilkent Cyberpark, Ankara, Turkey
| | - H İbrahim Ekiz
- Department of Food Engineering, Mersin University, Mersin, Turkey
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5
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Mahmudin L, Wulandani R, Riswan M, Kurnia Sari E, Dwi Jayanti P, Syahrul Ulum M, Arifin M, Suharyadi E. Silver nanoparticles-based localized surface plasmon resonance biosensor for Escherichia coli detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 311:123985. [PMID: 38316074 DOI: 10.1016/j.saa.2024.123985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 01/28/2024] [Accepted: 01/29/2024] [Indexed: 02/07/2024]
Abstract
Escherichia coli (E. coli) bacteria with varying solution concentrations have been successfully detected using silver nanoparticles (Ag NPs)-based localized surface plasmon resonance (LSPR) biosensors. The Ag NPs were effectively synthesized by a chemical method using trisodium citrate with L-Histidine (L-His) and deposited on the surface of Au thin film-coated half-cylinder BK-7 prisms. He-Ne laser with a wavelength of 632.8 nm was used to generate LSPR phenomena in Kretschmann configuration with prism/Au thin film/His-Ag NPs/E. coli bacteria/air structure arrangements. The variation of E. coli bacteria concentration was carried out to determine the effect of E. coli bacteria concentration on the LSPR curve characteristics. The characterization results showed that the size of Ag NPs was 18.7 nm, and that of His-Ag NPs was 17.9 nm. Selected area electron diffraction results indicated the formation of diffraction rings with the presence of lattice planes (111), (200), (220), and (311), proving the face-centered cubic crystal structure of silver. The absorbance peak of Ag NPs shifted from a wavelength of 421-414 nm with an increase in band gap energy from 2.94 eV to 2.99 eV, along with a decreased average particle size. The functional groups observed in His-Ag NPs showed wavenumbers at 3320 to 3318 cm-1, 2106 to 2129 cm-1, and 1635 cm-1, showing the OH, CH, and C CO bonds, respectively. The SPR angle of the prism/Au thin film/air structure is 44.80°. Meanwhile, the LSPR angle for the prism/Au thin film/His-Ag NPs/air structure is 44.92°. There is an increase in the LSPR angle by 0.12°. Moreover, the minimum reflectance increases by 0.02. After detecting E. coli bacteria, the LSPR angle shifted by 0.26°, 0.38°, and 0.49° for concentrations of 6.0 × 108 CFU/mL, 6.0 × 107 CFU/mL and 6.0 × 106 CFU/mL respectively. However, the minimum reflectance rose from 0.09° to 0.14°, 0.20°, and 0.22°. Moreover, SPR testing with the structure of the prism/Au thin film/E. coli bacteria/air was carried out to determine the contribution of His-Ag NPs for detecting E. coli bacteria. The results showed that no angular shift occurs. These results indicate that using Ag NPs encapsulated with L-His is essential in amplifying the SPR signal and detecting E. coli bacteria. There was a notable alteration in both the LSPR angle and minimum reflectance indicating that adding His-Ag NPs facilitated the interaction between the E. coli and the sensor surface, thereby enhancing the performance of LSPR-based sensors for E. coli detection for low limit of detection value at 0.47 CFU/mL.
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Affiliation(s)
- Lufsyi Mahmudin
- Department of Physics, Universitas Tadulako, Palu, Indonesia.
| | | | - Muhammad Riswan
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Emi Kurnia Sari
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Putri Dwi Jayanti
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - M Syahrul Ulum
- Department of Physics, Universitas Tadulako, Palu, Indonesia
| | - Muhammad Arifin
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia
| | - Edi Suharyadi
- Department of Physics, Universitas Gadjah Mada, Yogyakarta, Indonesia.
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6
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Gerdan Z, Saylan Y, Denizli A. Biosensing Platforms for Cardiac Biomarker Detection. ACS OMEGA 2024; 9:9946-9960. [PMID: 38463295 PMCID: PMC10918812 DOI: 10.1021/acsomega.3c06571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 03/12/2024]
Abstract
Myocardial infarction (MI) is a cardiovascular disease that occurs when there is an elevated demand for myocardial oxygen as a result of the rupture or erosion of atherosclerotic plaques. Globally, the mortality rates associated with MI are steadily on the rise. Traditional diagnostic biomarkers employed in clinical settings for MI diagnosis have various drawbacks, prompting researchers to investigate fast, precise, and highly sensitive biosensor platforms and technologies. Biosensors are analytical devices that combine biological elements with physicochemical transducers to detect and quantify specific compounds or analytes. These devices play a crucial role in various fields including healthcare, environmental monitoring, food safety, and biotechnology. Biosensors developed for the detection of cardiac biomarkers are typically electrochemical, mass, and optical biosensors. Nanomaterials have emerged as revolutionary components in the field of biosensing, offering unique properties that significantly enhance the sensitivity and specificity of the detection systems. This review provides a comprehensive overview of the advancements and applications of nanomaterial-based biosensing systems. Beginning with an exploration of the fundamental principles governing nanomaterials, we delve into their diverse properties, including but not limited to electrical, optical, magnetic, and thermal characteristics. The integration of these nanomaterials as transducers in biosensors has paved the way for unprecedented developments in analytical techniques. Moreover, the principles and types of biosensors and their applications in cardiovascular disease diagnosis are explained in detail. The current biosensors for cardiac biomarker detection are also discussed, with an elaboration of the pros and cons of existing platforms and concluding with future perspectives.
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Affiliation(s)
- Zeynep Gerdan
- Department
of Biomedical Engineering, Istanbul Beykent
University, Istanbul 34398, Turkey
| | - Yeşeren Saylan
- Department
of Chemistry, Hacettepe University, Ankara 06800, Turkey
| | - Adil Denizli
- Department
of Chemistry, Hacettepe University, Ankara 06800, Turkey
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7
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Moustafa S, Zayed MK, Ahmed M, Fares H. Bandwidth of quantized surface plasmons: competition between radiative and nonradiative damping effects. Phys Chem Chem Phys 2024; 26:1994-2006. [PMID: 38116761 DOI: 10.1039/d3cp04564a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
We investigate the damping effects of coherent electron oscillations on the bandwidth of a quantized nanoparticle plasmon resonance. The nanoparticle (NP) is treated as a two-level quantum system, and the total relaxation time involves both the population relaxation time associated with radiative processes and the collisional relaxation time associated with nonradiative processes that result in dephasing/decoherence of electron oscillations. We describe the optical response of NPs to an external electromagnetic field by the optical Bloch equations employing the density matrix formalism to capture the quantum description nature of dipolar plasmon resonance and suggest a generalized criterion for the validity of dipole approximation. Then we explore the competition between the radiative and nonradiative damping in determining the plasmon bandwidth of two typical NP models; metallic nanospheres and dielectric core-metal shell NPs (nanoshells). We show that the frequency of plasmon resonance, in addition to the NP size, plays an important role in the competition between the damping mechanisms. Consequently, the damping processes are significantly influenced by the factors that determine the resonance frequency, such as the core size, the dielectric constant of the medium, and the shell thickness (for nanoshells). For both models of NPs, we identify the optimum parameters that achieve a narrower plasmon bandwidth (minimal damping), which is a prerequisite for advanced sensing and medical applications. We demonstrate excellent agreement of the simulated spectral features of the plasmon resonance with previously reported experimental results for a single NP where the inhomogeneous broadening of the plasmon line is excluded. For NP ensembles where inhomogeneous broadenings and interface chemical effects are significant, our theoretical approach successfully predicts the overall trend of size-dependent damping rates.
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Affiliation(s)
- Samar Moustafa
- Physics Department, College of Science, Taibah University, P. O. Box 30002, Medina, Saudi Arabia.
- Department of Physics, Faculty of Science, Assiut University, Assiut 71516, Egypt
| | - Mohamed K Zayed
- Physics Department, College of Science, Taibah University, P. O. Box 30002, Medina, Saudi Arabia.
- Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef, 6111, Egypt
| | - Moustafa Ahmed
- Department of Physics, Faculty of Science, King Abdulaziz University, 80203 Jeddah, Saudi Arabia
| | - Hesham Fares
- Physics Department, College of Science, Taibah University, P. O. Box 30002, Medina, Saudi Arabia.
- Department of Physics, Faculty of Science, Assiut University, Assiut 71516, Egypt
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8
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D'Agata R, Bellassai N, Spoto G. Exploiting the design of surface plasmon resonance interfaces for better diagnostics: A perspective review. Talanta 2024; 266:125033. [PMID: 37562226 DOI: 10.1016/j.talanta.2023.125033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/12/2023]
Abstract
Surface Plasmon Resonance based-sensors are promising tools for precision diagnostics as they can provide tests useful for early and, whenever possible, non-invasive disease detection and monitoring. The design of novel, robust and effective interfaces enabling the sensing of a variety of molecular interactions in a highly selective and sensitive manner is a necessary step to obtain both accurate and reliable detection by SPR. This review covers the recent research efforts in this area, specifically emphasizing well-designed interfaces and applications in real-life samples. In particular, after a short introduction which identifies some of the critical challenges, the emerging strategies for the integration of the linker, the metal substrate and the recognition element on the sensing interface will be explored and discussed in three sections, as well as the opportunities for building SPR biosensors, easy to use, and with excellent sensitivities. Finally, a summary of some of the more promising and latest diagnostic applications will be provided, presenting a new window into the near-future perspectives.
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Affiliation(s)
- Roberta D'Agata
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, 95125, Catania, Italy; INBB, Istituto Nazionale di Biostrutture e Biosistemi, Viale Delle Medaglie D'Oro, 305, 00136, Roma, Italy.
| | - Noemi Bellassai
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, 95125, Catania, Italy; INBB, Istituto Nazionale di Biostrutture e Biosistemi, Viale Delle Medaglie D'Oro, 305, 00136, Roma, Italy
| | - Giuseppe Spoto
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria, 6, 95125, Catania, Italy; INBB, Istituto Nazionale di Biostrutture e Biosistemi, Viale Delle Medaglie D'Oro, 305, 00136, Roma, Italy
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