1
|
Roa S, Kaihara T, Pedano ML, Parsamyan H, Vavassori P. Laser polarization as a critical factor in the SERS-based molecular sensing performance of nano-gapped Au nanowires. NANOSCALE 2024. [PMID: 39078267 DOI: 10.1039/d4nr00817k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Nowadays, Au dimer-based nanostructures are exhaustively studied due to their outstanding potential as plasmonic nanoantennas for future applications in high-sensitivity molecular sensing by Surface-Enhanced Raman Spectroscopy (SERS). In this work, we analyze nano-gapped Au nanowires (NWs) or Au-NW dimers for designing efficient nanoantennas, reporting an exhaustive study about dimer length and laser polarization orientation effects on their SERS-based molecular sensing performance. Arrays of nanoantennas with gaps of about 22 ± 4 nm, nominal square cross-sections of 60 nm × 60 nm, and different segment lengths from 300 nm up to 1200 nm were fabricated by Au evaporation and subsequent e-beam lithography. The SERS performance was studied by confocal Raman microscopy using a linearly-polarized 633 nm laser. A critical impact of the polarization alignment on the spectral resolution of the studied Raman marker imprint was observed. The results show that the Raman signal is maximized by aligning the polarization orientation with the nanowire long axis, it is reduced by increasing the relative angle, and it is abruptly minimized when both are perpendicular. These observations were consistent with numerical simulations carried out by the FDTD method, which predicts a similar dependence between the orientation of linearly-polarized light and electric-near field amplification in the nano-gap zone. Our results provide an interesting paradigm and relevant insights in determining the role of laser polarization in the Raman signal enhancement in nano-gapped Au nanowires, showing the key role of this measurement condition on the SERS-based molecular sensing efficiency of this kind of nanostructure.
Collapse
Affiliation(s)
- Simón Roa
- Instituto de Nanociencia y Nanotecnología (CNEA - CONICET), Nodo Bariloche, Av. Bustillo 9500, C.P. 8400, S.C. de Bariloche, Río Negro, Argentina.
- Laboratorio de Fotónica y Optoelectrónica, Centro Atómico Bariloche, Av. Bustillo 9500, 8400 S. C. de Bariloche, Río Negro, Argentina
| | - Terunori Kaihara
- CIC nanoGUNE BRTA, Tolosa Hiribidea, 76, 20018 Donostia-San Sebastián, Spain
| | - María Laura Pedano
- Instituto de Nanociencia y Nanotecnología (CNEA - CONICET), Nodo Bariloche, Av. Bustillo 9500, C.P. 8400, S.C. de Bariloche, Río Negro, Argentina.
- Laboratorio de Fotónica y Optoelectrónica, Centro Atómico Bariloche, Av. Bustillo 9500, 8400 S. C. de Bariloche, Río Negro, Argentina
- Instituto Balseiro, CNEA-Universidad Nacional de Cuyo (UNCUYO), Av. E. Bustillo 9500, C.P. 8400, S. C. de Bariloche, Río Negro, Argentina
| | - Henrik Parsamyan
- Institute of Physics, Yerevan State University, 1 Alex Manoogian, Yerevan 0025, Armenia
| | - Paolo Vavassori
- CIC nanoGUNE BRTA, Tolosa Hiribidea, 76, 20018 Donostia-San Sebastián, Spain
- IKERBASQUE, Basque Foundation for Science, Plaza Euskadi 5, 48009 Bilbao, Spain
| |
Collapse
|
2
|
Kwon HJ, Cho YJ, Yuk KM, Lee J, Choi SH, Byun KM. Development of nanogap-rich hybrid gold nanostructures by use of two non-lithographic deposition techniques for a sensitive and reliable SERS biosensor. Biomed Eng Lett 2024; 14:859-866. [PMID: 38946823 PMCID: PMC11208359 DOI: 10.1007/s13534-024-00381-4] [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: 11/01/2023] [Revised: 03/24/2024] [Accepted: 04/21/2024] [Indexed: 07/02/2024] Open
Abstract
Practical application of surface-enhanced Raman spectroscopy (SERS) has suffered from several limitations by heterogeneous distribution of hot-spots, such as high signal fluctuation and the resulting low reliability in detection. Herein, we develop a strategy of more sensitive and reliable SERS platform through designing spatially homogeneous gold nanoparticles (GNPs) on a uniform gold nanoisland (GNI) pattern. The proposed SERS substrate is successfully fabricated by combining two non-lithographic techniques of electron beam evaporation and convective self-assembly. These bottom-up methods allow a simple, cost-effective, and large-area fabrication. Compared to the SERS substrates obtained from two separate nanofabrication methods, Raman spectra measured by the samples with both GNPs and GNIs present a significant increase in the signal intensity as well as a notable improvement in signal fluctuation. The simulated near-field analyses demonstrate the formation of highly amplified plasmon modes within and at the gaps of the GNP-GNI interfaces. Moreover, the suggested SERS sensor is evaluated to detect the glucose concentration, exhibiting that the detection sensitivity is improved by more than 10 times compared to the sample with only GNI patterns and a fairly good spatial reproducibility of 7% is accomplished. It is believed that our suggestion could provide a potential for highly sensitive, low-cost, and reliable SERS biosensing platforms that include many advantages for healthcare devices. Supplementary Information The online version contains supplementary material available at 10.1007/s13534-024-00381-4.
Collapse
Affiliation(s)
- Hyuck Ju Kwon
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Yong Jun Cho
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Kyeong Min Yuk
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin, 17104 Republic of Korea
| | - Jonghwan Lee
- School of Engineering, Brown University, Providence, RI 02912 USA
| | - Seung Ho Choi
- Department of Biomedical Engineering, Yonsei University, 1 Yonseidae-Gil, Wonju, Gangwon-Do 26493 Republic of Korea
| | - Kyung Min Byun
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin, 17104 Republic of Korea
| |
Collapse
|
3
|
Lyu N, Hassanzadeh-Barforoushi A, Rey Gomez LM, Zhang W, Wang Y. SERS biosensors for liquid biopsy towards cancer diagnosis by detection of various circulating biomarkers: current progress and perspectives. NANO CONVERGENCE 2024; 11:22. [PMID: 38811455 PMCID: PMC11136937 DOI: 10.1186/s40580-024-00428-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Accepted: 05/09/2024] [Indexed: 05/31/2024]
Abstract
Liquid biopsy has emerged as a promising non-invasive strategy for cancer diagnosis, enabling the detection of various circulating biomarkers, including circulating tumor cells (CTCs), circulating tumor nucleic acids (ctNAs), circulating tumor-derived small extracellular vesicles (sEVs), and circulating proteins. Surface-enhanced Raman scattering (SERS) biosensors have revolutionized liquid biopsy by offering sensitive and specific detection methodologies for these biomarkers. This review comprehensively examines the application of SERS-based biosensors for identification and analysis of various circulating biomarkers including CTCs, ctNAs, sEVs and proteins in liquid biopsy for cancer diagnosis. The discussion encompasses a diverse range of SERS biosensor platforms, including label-free SERS assay, magnetic bead-based SERS assay, microfluidic device-based SERS system, and paper-based SERS assay, each demonstrating unique capabilities in enhancing the sensitivity and specificity for detection of liquid biopsy cancer biomarkers. This review critically assesses the strengths, limitations, and future directions of SERS biosensors in liquid biopsy for cancer diagnosis.
Collapse
Affiliation(s)
- Nana Lyu
- School of Natural Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | | | - Laura M Rey Gomez
- School of Natural Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Wei Zhang
- School of Natural Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Yuling Wang
- School of Natural Sciences, Macquarie University, Sydney, NSW, 2109, Australia.
| |
Collapse
|
4
|
Gobbo M, Caligiuri I, Giannetti M, Litti L, Mazzuca C, Rizzolio F, Palleschi A, Meneghetti M. SERS nanostructures with engineered active peptides against an immune checkpoint protein. NANOSCALE 2024; 16:5206-5214. [PMID: 38375540 DOI: 10.1039/d4nr00172a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
The immune checkpoint programmed death ligand 1 (PD-L1) protein is expressed by tumor cells and it suppresses the killer activity of CD8+ T-lymphocyte cells binding to the programmed death 1 (PD-1) protein of these immune cells. Binding to either PD-L1 or PD1 is used for avoiding the inactivation of CD8+ T-lymphocyte cells. We report, for the first time, Au plasmonic nanostructures with surface-enhanced Raman scattering (SERS) properties (SERS nanostructures) and functionalized with an engineered peptide (CLP002: Trp-His-Arg-Ser-Tyr-Tyr-Thr-Trp-Asn-Leu-Asn-Thr), which targets PD-L1. Molecular dynamics calculations are used to describe the interaction of the targeting peptide with PD-L1 in the region where the interaction with PD-1 occurs, showing also the poor targeting activity of a peptide with the same amino acids, but a scrambled sequence. The results are confirmed experimentally since a very good targeting activity is observed against the MDA-MB-231 breast adenocarcinoma cancer cell line, which overexpresses PD-L1. A good activity is observed, in particular, for SERS nanostructures where the CLP002-engineered peptide is linked to the nanostructure surface with a short charged amino acid sequence and a long PEG chain. The results show that the functionalized SERS nanostructures show very good targeting of the immune checkpoint PD-L1.
Collapse
Affiliation(s)
- Marina Gobbo
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, 35131 Padova, Italy.
| | - Isabella Caligiuri
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, via F. Gallini 2, 33081 Aviano, PN, Italy
| | - Micaela Giannetti
- Department of Chemical Science and Technologies, University of Rome "Tor Vergata", and CSGI unit of Rome, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Lucio Litti
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, 35131 Padova, Italy.
| | - Claudia Mazzuca
- Department of Chemical Science and Technologies, University of Rome "Tor Vergata", and CSGI unit of Rome, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Flavio Rizzolio
- Pathology Unit, Centro di Riferimento Oncologico di Aviano (CRO) IRCCS, via F. Gallini 2, 33081 Aviano, PN, Italy
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, via Torino 155, 30172 Venice, Italy
| | - Antonio Palleschi
- Department of Chemical Science and Technologies, University of Rome "Tor Vergata", and CSGI unit of Rome, Via della Ricerca Scientifica, 00133 Rome, Italy
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, 35131 Padova, Italy.
| |
Collapse
|
5
|
Yang J, Zhang X, Geng L, Xia C, Chen X, Yang W, Xu H, Lin Z. Nanogap engineering of 3D nanoraspberries into 2D plasmonic nanoclusters toward improved SERS performance. NANOSCALE 2024; 16:2877-2882. [PMID: 38235598 DOI: 10.1039/d3nr05989h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
3D raspberry-like core/satellite nanostructures were prepared by controlled surface functionalization of silica spheres using crosslinked poly(4-vinylpyridine) (P4VP) chains with known binding affinity for gold nanoparticles (AuNPs). The 3D SiO2-g-P(4VP-co-DVB)/AuNP nanoraspberries can be further transformed into 2D plasmonic nanoclusters by etching the silica core with hydrofluoric acid (HF). After the transformation, the interparticle distance between the AuNPs dramatically reduced from a 10 nm scale to sub 2 nm. Owing to the strong electromagnetic field generated by the plasmonic coupling between AuNPs in very close proximity, the established P(4VP-co-DVB)/AuNP nanoclusters provided strong and undisturbed Raman signals as a SERS substrate. In addition, benefiting from the stabilizing effect of the crosslinked P(4VP-co-DVB) network, the prepared SERS substrate has the advantages of good uniformity, stability and reproducibility, as well as strong SERS enhancement, endowing it with great potential for rapid and efficient SERS detection.
Collapse
Affiliation(s)
- Jian Yang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Xinxing Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Lin Geng
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Chao Xia
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Xin Chen
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Wenzhong Yang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Hui Xu
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China.
| | - Zhiqun Lin
- Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, Singapore, 117585 Singapore.
| |
Collapse
|
6
|
Scarpitti BT, Fan S, Lomax-Vogt M, Lutton A, Olesik JW, Schultz ZD. Accurate Quantification and Imaging of Cellular Uptake Using Single-Particle Surface-Enhanced Raman Scattering. ACS Sens 2024; 9:73-80. [PMID: 38100727 PMCID: PMC10958331 DOI: 10.1021/acssensors.3c01648] [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] [Indexed: 12/17/2023]
Abstract
Understanding the uptake, distribution, and stability of gold nanoparticles (NPs) in cells is of fundamental importance in nanoparticle sensors and therapeutic development. Single nanoparticle imaging with surface-enhanced Raman spectroscopy (SERS) measurements in cells is complicated by aggregation-dependent SERS signals, particle inhomogeneity, and limited single-particle brightness. In this work, we assess the single-particle SERS signals of various gold nanoparticle shapes and the role of silica encapsulation on SERS signals to develop a quantitative probe for single-particle level Raman imaging in living cells. We observe that silica-encapsulated gap-enhanced Raman tags (GERTs) provide an optimized probe that can be quantifiable per voxel in SERS maps of cells. This approach is validated by single-particle inductively coupled mass spectrometry (spICP-MS) measurements of NPs in cell lysate post-imaging. spICP-MS also provides a means of measuring the tag stability. This analytical approach can be used not only to quantitatively assess nanoparticle uptake on the cellular level (as in previous digital SERS methods) but also to reliably image the subcellular distribution and to assess the stability of NPs in cells.
Collapse
Affiliation(s)
- Brian T. Scarpitti
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| | - Sanjun Fan
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| | - Madeleine Lomax-Vogt
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| | - Anthony Lutton
- School of Earth Sciences, The Ohio State University, Columbus, Ohio, 43210, USA
| | - John W. Olesik
- School of Earth Sciences, The Ohio State University, Columbus, Ohio, 43210, USA
| | - Zachary D. Schultz
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio, 43210, USA
| |
Collapse
|
7
|
Trinh HD, Kim S, Yun S, Huynh LTM, Yoon S. Combinatorial Approach to Find Nanoparticle Assemblies with Maximum Surface-Enhanced Raman Scattering. ACS APPLIED MATERIALS & INTERFACES 2024; 16:1805-1814. [PMID: 38001021 DOI: 10.1021/acsami.3c14487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2023]
Abstract
Plasmonic nanoparticles exhibit unique properties that distinguish them from other nanomaterials, including vibrant visible colors, the generation of local electric fields, the production of hot charge carriers, and localized heat emission. These properties are particularly enhanced in the narrow nanogaps formed between nanostructures. Therefore, creating nanogaps in a controlled fashion is the key to achieving a fundamental understanding of plasmonic phenomena originating from the nanogaps and developing advanced nanomaterials with enhanced performance for diverse applications. One of the most effective approaches to creating nanogaps is to assemble individual nanoparticles into a clustered structure. In this study, we present a fast, facile, and highly efficient method for preparing core@satellite (CS) nanoassembly structures using gold nanoparticles of various shapes and sizes, including nanospheres, nanocubes (AuNCs), nanorods, and nanotriangular prisms. The sequential assembly of these building blocks on glass substrates allows us to obtain CS nanostructures with a 100% yield within 4 h. Using 9 different building blocks, we successfully produce 16 distinct CS nanoassemblies and systematically investigate the combinations to search for the highest Raman enhancement. We find that the surface-enhanced Raman scattering (SERS) intensity of AuNC@AuNC CS nanoassemblies is 2 orders of magnitude larger than that of other CS nanoassemblies. Theoretical analyses reveal that the intensity and distribution of the electric field induced in the nanogaps by plasmon excitation, as well as the number of molecules in the interfacial region, collectively contribute to the unprecedentedly large SERS enhancement observed for AuNC@AuNC. This study not only presents a novel assembly method that can be extended to produce many other nanoassemblies but also identifies a highly promising SERS material for sensing and diagnostics through a systematic search process.
Collapse
Affiliation(s)
- Hoa Duc Trinh
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Seokheon Kim
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Seokhyun Yun
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Ly Thi Minh Huynh
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| | - Sangwoon Yoon
- Department of Chemistry, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Korea
| |
Collapse
|
8
|
Ebbah E, Amissah A, Kim JH, Driskell JD. SERS-based immunoassay on a plasmonic syringe filter for improved sampling and labeling efficiency of biomarkers. Analyst 2023; 149:221-230. [PMID: 38018888 DOI: 10.1039/d3an01899g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
Rapid, sensitive, and quantitative detection of biomarkers is needed for early diagnosis of disease and surveillance of infectious outbreaks. Here, we exploit a plasmonic syringe filter and surface-enhanced Raman spectroscopy (SERS) in the development of a rapid detection system, using human IgG as a model diagnostic biomarker. The novel assay design facilitates multiple passages of the sample and labeling solution through the detection zone enabling us to investigate and maximize sampling efficiency to the capture substrate. The vertical flow immunoassay process in this study involves the utilization of filter paper embedded with gold nanoparticles (AuNPs) to form a plasmonic substrate. Capture antibody (anti-human IgG) is then immobilized onto the prepared plasmonic paper and inserted into a vertical flow device (syringe filter holder). Sample solution is passed through the filter paper and the target antigen (human IgG) is selectively captured by the immobilized antibody to form an antibody-antigen complex. Next, functionalized AuNPs as extrinsic Raman labels (ERLs) are passed through the filter paper to label the captured biomarker molecules forming a layered structure. This sandwiched geometry enhances plasmonic coupling and SERS signal to provide highly sensitive detection of biomolecules. Systematic studies to investigate the impact of multiple infuse/withdraw cycles of the sample and labeling solutions reveal that antigen and ERL binding are maximized with 10 and 20 cycles, respectively. The optimized assay achieves a detection limit of ∼0.2 ng mL-1 for human IgG with a total assay time of less than 5 minutes, meeting the demands for rapid point of care diagnostics. Additionally, the optimized platform was implemented in the quantitative analysis of the SARS-CoV-2 nucleocapsid protein, the typical target in commercial, FDA-approved rapid antigen tests for COVID-19.
Collapse
Affiliation(s)
- Eunice Ebbah
- Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
| | - Anthony Amissah
- Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
| | - Jun-Hyun Kim
- Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
| | - Jeremy D Driskell
- Department of Chemistry, Illinois State University, Normal, IL 61790, USA.
| |
Collapse
|
9
|
Fu L, Lin CT, Karimi-Maleh H, Chen F, Zhao S. Plasmonic Nanoparticle-Enhanced Optical Techniques for Cancer Biomarker Sensing. BIOSENSORS 2023; 13:977. [PMID: 37998152 PMCID: PMC10669140 DOI: 10.3390/bios13110977] [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: 10/04/2023] [Revised: 11/02/2023] [Accepted: 11/06/2023] [Indexed: 11/25/2023]
Abstract
This review summarizes recent advances in leveraging localized surface plasmon resonance (LSPR) nanotechnology for sensitive cancer biomarker detection. LSPR arising from noble metal nanoparticles under light excitation enables the enhancement of various optical techniques, including surface-enhanced Raman spectroscopy (SERS), dark-field microscopy (DFM), photothermal imaging, and photoacoustic imaging. Nanoparticle engineering strategies are discussed to optimize LSPR for maximum signal amplification. SERS utilizes electromagnetic enhancement from plasmonic nanostructures to boost inherently weak Raman signals, enabling single-molecule sensitivity for detecting proteins, nucleic acids, and exosomes. DFM visualizes LSPR nanoparticles based on scattered light color, allowing for the ultrasensitive detection of cancer cells, microRNAs, and proteins. Photothermal imaging employs LSPR nanoparticles as contrast agents that convert light to heat, producing thermal images that highlight cancerous tissues. Photoacoustic imaging detects ultrasonic waves generated by LSPR nanoparticle photothermal expansion for deep-tissue imaging. The multiplexing capabilities of LSPR techniques and integration with microfluidics and point-of-care devices are reviewed. Remaining challenges, such as toxicity, standardization, and clinical sample analysis, are examined. Overall, LSPR nanotechnology shows tremendous potential for advancing cancer screening, diagnosis, and treatment monitoring through the integration of nanoparticle engineering, optical techniques, and microscale device platforms.
Collapse
Affiliation(s)
- Li Fu
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (F.C.); (S.Z.)
| | - Cheng-Te Lin
- Qianwan Institute, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China;
- Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, 19 A Yuquan Rd., Shijingshan District, Beijing 100049, China
| | - Hassan Karimi-Maleh
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People’s Hospital, Wenzhou 325015, China;
- School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu 611731, China
- School of Engineering, Lebanese American University, Byblos 13-5053, Lebanon
| | - Fei Chen
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (F.C.); (S.Z.)
| | - Shichao Zhao
- Key Laboratory of Novel Materials for Sensor of Zhejiang Province, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China; (F.C.); (S.Z.)
| |
Collapse
|
10
|
Wang WB, Li JJ, Weng GJ, Zhu J, Guo YB, Zhao JW. An anisotropic nanobox based core-shell-satellite nanoassembly of multiple SERS enhancement with heterogeneous interface for stroke marker determination. J Colloid Interface Sci 2023; 647:81-92. [PMID: 37245272 DOI: 10.1016/j.jcis.2023.05.137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 05/05/2023] [Accepted: 05/20/2023] [Indexed: 05/30/2023]
Abstract
Herein, A novel gold-silver alloy nanobox (AuAgNB)@SiO2-gold nanosphere (AuNP) nanoassembly based on core-shell-satellite structure is fabricated and applied to the surface-enhanced Raman scattering (SERS) detection of S100 calcium-binding protein B protein (S100B). It contains an anisotropic hollow porous AuAgNB core with rough surface, an ultrathin silica interlayer labeled with reporter molecules, and AuNP satellites. The nanoassemblies were systematically optimized by tuning the reporter molecules concentration, silica layer thickness, AuAgNB size, and the size and number of AuNP satellite size. Remarkably, AuNP satellites are adjacent to AuAgNB@SiO2, developing AuAg-SiO2-Au heterogeneous interface. With the strong plasmon coupling between AuAgNB and AuNP satellites, chemical enhancement from heterogeneous interface, and the tip "hot spots" of AuAgNB, the SERS activity of the nanoassemblies was multiply enhanced. Additionally, the stability of nanostructure and Raman signal was significantly improved by the silica interlayer and AuNP satellites. Eventually, the nanoassemblies were applied for S100B detection. It demonstrated satisfactory sensitivity and reproducibility with a wide detection range of 10 fg/mL-10 ng/mL and a limit of detection (LOD) of 1.7 fg/mL. This work based on the AuAgNB@SiO2-AuNP nanoassemblies with multiple SERS enhancements and favorable stability demonstrates the promising application in stroke diagnosis.
Collapse
Affiliation(s)
- Wei-Bin Wang
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian-Jun Li
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| | - Guo-Jun Weng
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jian Zhu
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yu-Bo Guo
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Jun-Wu Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China.
| |
Collapse
|
11
|
Deriu C, Thakur S, Tammaro O, Fabris L. Challenges and opportunities for SERS in the infrared: materials and methods. NANOSCALE ADVANCES 2023; 5:2132-2166. [PMID: 37056617 PMCID: PMC10089128 DOI: 10.1039/d2na00930g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
In the wake of a global, heightened interest towards biomarker and disease detection prompted by the SARS-CoV-2 pandemic, surface enhanced Raman spectroscopy (SERS) positions itself again at the forefront of biosensing innovation. But is it ready to move from the laboratory to the clinic? This review presents the challenges associated with the application of SERS to the biomedical field, and thus, to the use of excitation sources in the near infrared, where biological windows allow for cell and through-tissue measurements. Two main tackling strategies will be discussed: (1) acting on the design of the enhancing substrate, which includes manipulation of nanoparticle shape, material, and supramolecular architecture, and (2) acting on the spectral collection set-up. A final perspective highlights the upcoming scientific and technological bets that need to be won in order for SERS to stably transition from benchtop to bedside.
Collapse
Affiliation(s)
- Chiara Deriu
- Department of Applied Science and Technology, Politecnico di Torino 10129 Turin Italy
| | - Shaila Thakur
- Department of Applied Science and Technology, Politecnico di Torino 10129 Turin Italy
| | - Olimpia Tammaro
- Department of Applied Science and Technology, Politecnico di Torino 10129 Turin Italy
| | - Laura Fabris
- Department of Applied Science and Technology, Politecnico di Torino 10129 Turin Italy
- Department of Materials Science and Engineering, Rutgers University Piscataway NJ 08854 USA
| |
Collapse
|
12
|
Ricci S, Buonomo M, Casalini S, Bonacchi S, Meneghetti M, Litti L. High performance multi-purpose nanostructured thin films by inkjet printing: Au micro-electrodes and SERS substrates. NANOSCALE ADVANCES 2023; 5:1970-1977. [PMID: 36998657 PMCID: PMC10044483 DOI: 10.1039/d2na00917j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/16/2023] [Indexed: 06/19/2023]
Abstract
Nanostructured thin metal films are exploited in a wide range of applications, spanning from electrical to optical transducers and sensors. Inkjet printing has become a compliant technique for sustainable, solution-processed, and cost-effective thin films fabrication. Inspired by the principles of green chemistry, here we show two novel formulations of Au nanoparticle-based inks for manufacturing nanostructured and conductive thin films by using inkjet printing. This approach showed the feasibility to minimize the use of two limiting factors, namely stabilizers and sintering. The extensive morphological and structural characterization provides pieces of evidence about how the nanotextures lead to high electrical and optical performances. Our conductive films (sheet resistance equal to 10.8 ± 4.1 Ω per square) are a few hundred nanometres thick and feature remarkable optical properties in terms of SERS activity with enhancement factors as high as 107 averaged on the mm2 scale. Our proof-of-concept succeeded in simultaneously combining electrochemistry and SERS by means of real-time tracking of the specific signal of mercaptobenzoic acid cast on our nanostructured electrode.
Collapse
Affiliation(s)
- Simona Ricci
- Department of Chemical Sciences, University of Padova Via Marzolo, 1, 35131 Padova Italy +39-049-8275530
| | - Marco Buonomo
- Department of Informatic Engineering, University of Padova Via Gradenigo 6/b 35131 Padova Italy
| | - Stefano Casalini
- Department of Chemical Sciences, University of Padova Via Marzolo, 1, 35131 Padova Italy +39-049-8275530
| | - Sara Bonacchi
- Department of Chemical Sciences, University of Padova Via Marzolo, 1, 35131 Padova Italy +39-049-8275530
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova Via Marzolo, 1, 35131 Padova Italy +39-049-8275530
| | - Lucio Litti
- Department of Chemical Sciences, University of Padova Via Marzolo, 1, 35131 Padova Italy +39-049-8275530
| |
Collapse
|
13
|
Berganza L, Litti L, Meneghetti M, Lanceros-Méndez S, Reguera J. Enhancement of Magnetic Surface-Enhanced Raman Scattering Detection by Tailoring Fe 3O 4@Au Nanorod Shell Thickness and Its Application in the On-site Detection of Antibiotics in Water. ACS OMEGA 2022; 7:45493-45503. [PMID: 36530269 PMCID: PMC9753213 DOI: 10.1021/acsomega.2c06099] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 11/17/2022] [Indexed: 06/17/2023]
Abstract
Surface-enhanced Raman scattering (SERS) has become a promising method for the detection of contaminants or biomolecules in aqueous media. The low interference of water, the unique spectral fingerprint, and the development of portable and handheld equipment for in situ measurements underpin its predominance among other spectroscopic techniques. Among the SERS nanoparticle substrates, those composed of plasmonic and magnetic components are prominent examples of versatility and efficiency. These substrates harness the ability to capture the target analyte, concentrate it, and generate unique hotspots for superior enhancement. Here, we have evaluated the use of gold-coated magnetite nanorods as a novel multifunctional magnetic-plasmonic SERS substrate. The nanostructures were synthesized starting from core-satellite structures. A series of variants with different degrees of Au coatings were then prepared by seed-mediated growth of gold, from core-satellite structures to core-shell with partial and complete shells. All of them were tested, using a portable Raman instrument, with the model molecule 4-mercaptobenzoic acid in colloidal suspension and after magnetic separation. Experimental results were compared with the boundary element method to establish the mechanism of Raman enhancement. The results show a quick magnetic separation of the nanoparticles and excellent Raman enhancement for all the nanoparticles both in dispersion and magnetically concentrated with limits of detection up to the nM range (∼50 nM) and a quantitative calibration curve. The nanostructures were then tested for the sensing of the antibiotic ciprofloxacin, highly relevant in preventing antibiotic contaminants in water reservoirs and drug monitoring, showing that ciprofloxacin can be detected using a portable Raman instrument at a concentration as low as 100 nM in a few minutes, which makes it highly relevant in practical point-of-care devices and in situ use.
Collapse
Affiliation(s)
- Leixuri
B. Berganza
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
| | - Lucio Litti
- Nanostructures
and Optics Laboratory, Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131Padova, Italy
| | - Moreno Meneghetti
- Nanostructures
and Optics Laboratory, Department of Chemical Sciences, University of Padova, Via Marzolo, 1, 35131Padova, Italy
| | - Senentxu Lanceros-Méndez
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
- Ikerbasque,
Basque Foundation for Science Bilbao, Plaza Euskadi 5, 48009Bilbao, Spain
| | - Javier Reguera
- BCMaterials,
Basque Center for Materials, Applications, and Nanostructures, UPV/EHU
Science Park, 48940Leioa, Spain
| |
Collapse
|
14
|
Kang T, Cho Y, Yuk KM, Yu CY, Choi SH, Byun KM. Fabrication and Characterization of Novel Silk Fiber-Optic SERS Sensor with Uniform Assembly of Gold Nanoparticles. SENSORS (BASEL, SWITZERLAND) 2022; 22:9012. [PMID: 36433605 PMCID: PMC9692301 DOI: 10.3390/s22229012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 06/16/2023]
Abstract
Biocompatible optical fibers and waveguides are gaining attention as promising platforms for implantable biophotonic devices. Recently, the distinct properties of silk fibroin were extensively explored because of its unique advantages, including flexibility, process compatibility, long-term biosafety, and controllable biodegradability for in vitro and in vivo biomedical applications. In this study, we developed a novel silk fiber for a sensitive optical sensor based on surface-enhanced Raman spectroscopy (SERS). In contrast to conventional plasmonic nanostructures, which employ expensive and time-consuming fabrication processes, gold nanoparticles were uniformly patterned on the top surface of the fiber employing a simple and cost-effective convective self-assembly technique. The fabricated silk fiber-optic SERS probe presented a good performance in terms of detection limit, sensitivity, and linearity. In particular, the uniform pattern of gold nanoparticles contributed to a highly linear sensing feature compared to the commercial multi-mode fiber sample with an irregular and aggregated distribution of gold nanoparticles. Through further optimization, silk-based fiber-optic probes can function as useful tools for highly sensitive, cost-effective, and easily tailored biophotonic platforms, thereby offering new capabilities for future implantable SERS devices.
Collapse
Affiliation(s)
- Taeyoung Kang
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Yongjun Cho
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Kyeong Min Yuk
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| | - Chan Yeong Yu
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Seung Ho Choi
- Department of Biomedical Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Kyung Min Byun
- Department of Electronics and Information Convergence Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
- Department of Biomedical Engineering, Kyung Hee University, Yongin 17104, Republic of Korea
| |
Collapse
|
15
|
Kang S, Wang W, Rahman A, Nam W, Zhou W, Vikesland PJ. Highly porous gold supraparticles as surface-enhanced Raman spectroscopy (SERS) substrates for sensitive detection of environmental contaminants. RSC Adv 2022; 12:32803-32812. [PMID: 36425178 PMCID: PMC9665105 DOI: 10.1039/d2ra06248h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Accepted: 11/09/2022] [Indexed: 09/10/2023] Open
Abstract
Surface-enhanced Raman spectroscopy (SERS) has great potential as an analytical technique for environmental analyses. In this study, we fabricated highly porous gold (Au) supraparticles (i.e., ∼100 μm diameter agglomerates of primary nano-sized particles) and evaluated their applicability as SERS substrates for the sensitive detection of environmental contaminants. Facile supraparticle fabrication was achieved by evaporating a droplet containing an Au and polystyrene (PS) nanoparticle mixture on a superamphiphobic nanofilament substrate. Porous Au supraparticles were obtained through the removal of the PS phase by calcination at 500 °C. The porosity of the Au supraparticles was readily adjusted by varying the volumetric ratios of Au and PS nanoparticles. Six environmental contaminants (malachite green isothiocyanate, rhodamine B, benzenethiol, atrazine, adenine, and gene segment) were successfully adsorbed to the porous Au supraparticles, and their distinct SERS spectra were obtained. The observed linear dependence of the characteristic Raman peak intensity for each environmental contaminant on its aqueous concentration reveals the quantitative SERS detection capability by porous Au supraparticles. The limit of detection (LOD) for the six environmental contaminants ranged from ∼10 nM to ∼10 μM, which depends on analyte affinity to the porous Au supraparticles and analyte intrinsic Raman cross-sections. The porous Au supraparticles enabled multiplex SERS detection and maintained comparable SERS detection sensitivity in wastewater influent. Overall, we envision that the Au supraparticles can potentially serve as practical and sensitive SERS devices for environmental analysis applications.
Collapse
Affiliation(s)
- Seju Kang
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Wei Wang
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Asifur Rahman
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| | - Wonil Nam
- Department of Electrical and Computer Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Department of Electronic Engineering, Pukyong National University Busan Republic of Korea
| | - Wei Zhou
- Department of Electrical and Computer Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
| | - Peter J Vikesland
- Department of Civil and Environmental Engineering, Virginia Tech 415 Durham Blacksburg 24061 Virginia USA
- Virginia Tech Institute of Critical Technology and Applied Science (ICTAS) Sustainable Nanotechnology Center (VTSuN) Blacksburg Virginia USA
| |
Collapse
|
16
|
Sampath A, Ricciardulli T, Priyadarshini P, Ghosh R, Adams JS, Flaherty DW. Spectroscopic Evidence for the Involvement of Interfacial Sites in O–O Bond Activation over Gold Catalysts. ACS Catal 2022. [DOI: 10.1021/acscatal.2c02076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Abinaya Sampath
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Tomas Ricciardulli
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Pranjali Priyadarshini
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Richa Ghosh
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Jason S. Adams
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - David W. Flaherty
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, 125, Roger Adams Lab, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| |
Collapse
|
17
|
Choi JH, Choi M, Ho TS, Kim S, Choi S, Choi SH, Byun KM. Biological SERS-active sensor platform based on flexible silk fibroin film and gold nanoislands. OPTICS EXPRESS 2022; 30:7782-7792. [PMID: 35299533 DOI: 10.1364/oe.452665] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 02/10/2022] [Indexed: 05/24/2023]
Abstract
In contrast to conventional surface-enhanced Raman scattering (SERS) platforms implemented on non-biological substrates, silk fibroin has the unique advantages of long-term biosafety and controllable biodegradability for in vitro and in vivo biomedical applications, as well as flexibility and process-compatibility. In this study, a silk fibroin film was developed to fabricate a flexible SERS sensor template with nanogap-rich gold nanoislands. The proposed biological SERS platform presents fairly good enhancements in detection performance such as detection limit, sensitivity, and signal-to-noise ratio. In particular, the sensitivity improvement was by more than 10 times compared to that of the counterpart sample, and an excellent spatial reproducibility of 2.8% was achieved. In addition, the near-field calculation results were consistent with the experimental results, and the effect of surface roughness of the silk substrate was investigated in a quantitative way. It is believed that biological SERS-active sensors could provide the potential for highly sensitive, cost-effective, and easily customizable nanophotonic platforms that include new capabilities for future healthcare devices.
Collapse
|
18
|
Yin H, Jin Z, Duan W, Han B, Han L, Li C. Emergence of Responsive Surface-Enhanced Raman Scattering Probes for Imaging Tumor-Associated Metabolites. Adv Healthc Mater 2022; 11:e2200030. [PMID: 35182455 DOI: 10.1002/adhm.202200030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 02/03/2022] [Indexed: 11/11/2022]
Abstract
As a core hallmark of cancer, metabolic reprogramming alters the metabolic networks of cancer cells to meet their insatiable appetite for energy and nutrient. Tumor-associated metabolites, the products of metabolic reprogramming, are valuable in evaluating tumor occurrence and progress timely and accurately because their concentration variations usually happen earlier than the aberrances demonstrated in tissue structure and function. As an optical spectroscopic technique, surface-enhanced Raman scattering (SERS) offers advantages in imaging tumor-associated metabolites, including ultrahigh sensitivity, high specificity, multiplexing capacity, and uncompromised signal intensity. This review first highlights recent advances in the development of stimuli-responsive SERS probes. Then the mechanisms leading to the responsive SERS signal triggered by tumor metabolites are summarized. Furthermore, biomedical applications of these responsive SERS probes, such as the image-guided tumor surgery and liquid biopsy examination for tumor molecular typing, are summarized. Finally, the challenges and prospects of the responsive SERS probes for clinical translation are also discussed.
Collapse
Affiliation(s)
- Hang Yin
- Minhang Hospital and Key Laboratory of Smart Drug Delivery Ministry of Education State Key Laboratory of Medical Neurobiology School of Pharmacy Fudan University Shanghai 201203 China
| | - Ziyi Jin
- Minhang Hospital and Key Laboratory of Smart Drug Delivery Ministry of Education State Key Laboratory of Medical Neurobiology School of Pharmacy Fudan University Shanghai 201203 China
| | - Wenjia Duan
- Minhang Hospital and Key Laboratory of Smart Drug Delivery Ministry of Education State Key Laboratory of Medical Neurobiology School of Pharmacy Fudan University Shanghai 201203 China
| | - Bing Han
- Minhang Hospital Fudan University Xinsong Road 170 Shanghai 201100 China
| | - Limei Han
- Minhang Hospital and Key Laboratory of Smart Drug Delivery Ministry of Education State Key Laboratory of Medical Neurobiology School of Pharmacy Fudan University Shanghai 201203 China
| | - Cong Li
- Minhang Hospital and Key Laboratory of Smart Drug Delivery Ministry of Education State Key Laboratory of Medical Neurobiology School of Pharmacy Fudan University Shanghai 201203 China
| |
Collapse
|
19
|
Quantification using statistical parameters derived from signal intensity distributions in surface enhanced Raman scattering (SERS). Anal Chim Acta 2021; 1181:338931. [PMID: 34556236 DOI: 10.1016/j.aca.2021.338931] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 08/06/2021] [Accepted: 08/07/2021] [Indexed: 11/22/2022]
Abstract
Raman spectroscopy is a powerful method, which provides information on molecular structures, conformations, interactions etc. However, its applications are severely restricted because of low sensitivity. Although surface enhanced Raman scattering (SERS) significantly enhances sensitivity and enables single-molecular detection, quantification by this method is still challenging because of large signal fluctuations. In the present study, the signal intensity distributions (SIDs) in SERS of adenine and thymine on the silver nanoparticle (AgNP) platform are analyzed based on more than 10000 spectra to pursue the possibility of SERS quantification. The signals always involve large fluctuations but show statistically relevant patterns. SIDs are well represented by the exponentially modified Gaussian function, which is characterized by reproducible parameters. Thus, robust quantification is feasible using the parameters derived from the SIDs. At least 200 spectra for a given concentration are necessary to derive reproducible parameter values from the SID. The mean signal intensity determined from the SIDs is proportional to the adenine concentration in the range of 10-75 μM. However, this parameter becomes independent of the adenine concentration in the lower concentration range. In such concentrations, minor events, which give distinct SERS spectra, occasionally occur but have only marginal impacts on the mean signal intensity. The corrected standard deviation of the SID, which is estimated from the complementary error function, well represents the minor events and provides a clear correlation with the concentration in the range of 0.5-7.5 μM. Furthermore, the quantification in the nanomolar range is made possible by the incorporation of sample freezing, which enables to enrich target analytes and AgNPs in a liquid phase confined by ice.
Collapse
|
20
|
Wu R, Jin Q, Storey C, Collins J, Gomard G, Lemmer U, Canham L, Kling R, Kaplan A. Gold nanoplasmonic particles in tunable porous silicon 3D scaffolds for ultra-low concentration detection by SERS. NANOSCALE HORIZONS 2021; 6:781-790. [PMID: 34355229 DOI: 10.1039/d1nh00228g] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A composite material of plasmonic nanoparticles embedded in a scaffold of nano-porous silicon offers unmatched capabilities for use as a SERS substrate. The marriage of these components presents an exclusive combination of tightly focused amplification of Localised Surface Plasmon (LSP) fields inside the material with an extremely high surface-to-volume ratio. This provides favourable conditions for a single molecule or extremely low concentration detection by SERS. In this work the advantage of the composite is demonstrated by SERS detection of Methylene Blue at a concentration as low as a few picomolars. We systematically investigate the plasmonic properties of the material by imaging its morphology, establishing its composition and the effect on the LSP resonance optical spectra.
Collapse
Affiliation(s)
- Rihan Wu
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Qihao Jin
- Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131 Karlsruhe, Germany
| | - Catherine Storey
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Jack Collins
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Guillaume Gomard
- Carl Zeiss AG, ZEISS Innovation Hub@KIT, Hermann-von-Helmholtz-Platz 6, 76344 Eggenstein-Leopoldshafen, Germany
| | - Uli Lemmer
- Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131 Karlsruhe, Germany
| | - Leigh Canham
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| | - Rainer Kling
- Light Technology Institute, Karlsruhe Institute of Technology, Engesserstrasse 13, 76131 Karlsruhe, Germany
| | - Andrey Kaplan
- School of Physics and Astronomy, University of Birmingham, Birmingham B15 2TT, UK.
| |
Collapse
|
21
|
Litti L, Trivini S, Ferraro D, Reguera J. 3D Printed Microfluidic Device for Magnetic Trapping and SERS Quantitative Evaluation of Environmental and Biomedical Analytes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:34752-34761. [PMID: 34256559 PMCID: PMC8397251 DOI: 10.1021/acsami.1c09771] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 07/05/2021] [Indexed: 04/14/2023]
Abstract
Surface-enhanced Raman scattering (SERS) is an ideal technique for environmental and biomedical sensor devices due to not only the highly informative vibrational features but also to its ultrasensitive nature and possibilities toward quantitative assays. Moreover, in these areas, SERS is especially useful as water hinders most of the spectroscopic techniques such as those based on IR absorption. Despite its promising possibilities, most SERS substrates and technological frameworks for SERS detection are still restricted to research laboratories, mainly due to a lack of robust technologies and standardized protocols. We present herein the implementation of Janus magnetic/plasmonic Fe3O4/Au nanostars (JMNSs) as SERS colloidal substrates for the quantitative determination of several analytes. This multifunctional substrate enables the application of an external magnetic field for JMNSs retention at a specific position within a microfluidic channel, leading to additional amplification of the SERS signals. A microfluidic device was devised and 3D printed as a demonstration of cheap and fast production, with the potential for large-scale implementation. As low as 100 μL of sample was sufficient to obtain results in 30 min, and the chip could be reused for several cycles. To show the potential and versatility of the sensing system, JMNSs were exploited with the microfluidic device for the detection of several relevant analytes showing increasing analytical difficulty, including the comparative detection of p-mercaptobenzoic acid and crystal violet and the quantitative detection of the herbicide flumioxazin and the anticancer drug erlotinib in plasma, where calibration curves within diagnostic concentration intervals were obtained.
Collapse
Affiliation(s)
- Lucio Litti
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Stefano Trivini
- Department
of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy
| | - Davide Ferraro
- Department
of Physics and Astronomy, University of
Padova, via Marzolo 8, 35131 Padova, Italy
| | - Javier Reguera
- BCMaterials,
Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| |
Collapse
|
22
|
Biscaglia F, Caligiuri I, Rizzolio F, Ripani G, Palleschi A, Meneghetti M, Gobbo M. Protection against proteolysis of a targeting peptide on gold nanostructures. NANOSCALE 2021; 13:10544-10554. [PMID: 34100487 DOI: 10.1039/d0nr04631k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Cell targeting has been considered an important strategy in diagnostic and therapeutic applications. Among different targeting units, peptides have emerged for their ability to bind to many different cellular targets, their scarce immunogenicity and the possibility of introducing multiple copies on nanosystems, providing high avidity for the target. However, their sensitivity to proteases strongly limits their applications in vivo. Here, we show that when presented on the surface of nanostructures, peptide stability to proteolysis is strongly improved without reducing the targeting activity. We prepared plasmonic nanostructures functionalized with a dodecapeptide (GE11) which targets EGFR, a protein overexpressed on different types of tumors. Two types of nanosystems were prepared in which the targeting unit was either directly linked to gold nanoparticles or through a PEG chain, resulting in a different peptide density on the surface of nanostructures. The peptide was rapidly degraded in 20% human serum or in the presence of isolated serine proteases, whereas no significant proteolytic fragments were detected during incubation of the nanosystems and after 24 h digestion, the nanostructures maintained their targeting activity and selectivity on colon cancer cells. Molecular dynamic calculations of the interaction of the nanostructure with chymotrypsin suggest that the formation of the enzyme-peptide complex, the first step in the mechanism of peptide hydrolysis, is highly unlikely because of the constraint imposed by the link of the peptide to the nanoparticle. These results support the utilization of peptides as active targeting units in nanomedicine.
Collapse
Affiliation(s)
- Francesca Biscaglia
- Department of Chemical Sciences, University of Padova, via F. Marzolo 1, 35131 Padova, Italy.
| | | | | | | | | | | | | |
Collapse
|
23
|
Calderon I, Alvarez-Puebla RA, Pazos-Perez N. Gold-spiked coating of silver particles through cold nanowelding. NANOSCALE 2021; 13:4530-4536. [PMID: 33599657 DOI: 10.1039/d0nr08517k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Herein, we present a method to obtain particles composed of a segregated alloy of silver coated with gold. These particles are achieved through the controlled Ostwald ripening of small gold nanoparticles (NPs) on the surfaces of larger silver particles. The prepared segregated nanoalloyed colloids benefit from the advantages of gold and silver with none of their drawbacks. These platforms provide optical efficiencies which are superior to those of silver with the chemical resistance and biocompatibility of gold.
Collapse
Affiliation(s)
- Irene Calderon
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Ramon A Alvarez-Puebla
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain. and ICREA, Passeig Lluis Companys 23, 08010 Barcelona, Spain
| | - Nicolas Pazos-Perez
- Department of Physical Chemistry, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| |
Collapse
|
24
|
Choi M, Kang T, Choi SH, Byun KM. Dual modal plasmonic substrates based on a convective self-assembly technique for enhancement in SERS and LSPR detection. OPTICS EXPRESS 2021; 29:6179-6187. [PMID: 33726144 DOI: 10.1364/oe.419051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Accepted: 02/07/2021] [Indexed: 06/12/2023]
Abstract
In this study, surface-enhanced Raman scattering (SERS) scheme is combined with localized surface plasmon resonance (LSPR) detection on a thin gold film with stripe patterns of gold nanoparticles (GNPs) via convective self-assembly (CSA) method. The potential of dual modal plasmonic substrates was evaluated by binding 4-ABT and IgG analytes, respectively. SERS experiments presented not only a high sensitivity with a detection limit of 4.7 nM and an enhancement factor of 1.34 × 105, but an excellent reproducibility with relative standard deviation of 5.5%. It was found from plasmonic sensing experiments by immobilizing IgG onto GNP-mediated gold film that detection sensitivity was improved by more than 211%, compared with a conventional bare gold film. Our synergistic SERS-LSPR approach based on a simple and cost-effective CSA method could open a route for sensitive, reliable and reproducible dual modal detection to expand the application areas.
Collapse
|
25
|
Integrated EC-SERS Chip with Uniform Nanostructured EC-SERS Active Working Electrode for Rapid Detection of Uric Acid. SENSORS 2020; 20:s20247066. [PMID: 33321761 PMCID: PMC7764591 DOI: 10.3390/s20247066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 12/05/2020] [Accepted: 12/08/2020] [Indexed: 12/15/2022]
Abstract
Toxemia of pregnancy is a very dangerous disease for pregnant women. The mortality rate of toxemia of pregnancy is close to 10% to 15%. Early detection of pregnancy toxemia is to monitoring uric acid concentration in urine. The current mainstream method for detecting uric acid requires an enzyme (urate oxidase), which needs to be stored in a low-temperature environment, and the method requires complex chemical steps, which takes a longer time and more samples. In this study, we propose an integrated miniature three-electrode electrochemical surface-enhanced Raman spectroscopy chip (EC-SERS chip) suitable for rapid EC-SERS detection applications. The integrated microfluidic reservoir on the chip makes it easy to use, which is very suitable for rapid detection applications. The SERS active working electrode for the proposed integrated EC-SERS chip is a nanocone array polycarbonate (PC) substrate decorated with an evenly distributed and tightly packed array of gold nanospheres. It showed good uniformity and can be easily reproduced. The integrated EC-SERS chip is very small compared to the traditional electrochemical cell, which reduces the sample volume required for the testing. In addition, the chip is for one-time use only. It eliminates the need to clean electrochemical cells for reuse, thereby reducing the possibility of contamination and inaccurate detection. Various low-concentration Rhodamine 6G (R6G) solutions were tested to verify the performance of the developed EC-SERS chip. Experimental results showed that the proposed EC-SERS chip has a strong enhancement factor of up to 8.5 × 106 and a very good EC-SERS uniformity (the relative standard deviation of EC-SERS intensity is as low as 1.41%). The EC-SERS chip developed has been further tested for the detection of uric acid in synthetic urine. The results showed that the EC-SERS signal intensity has a highly linear relationship with the logarithm of the uric acid concentration in synthetic urine, which indicates that the developed EC-SERS chip is suitable for the quantitative detection of uric acid in synthetic urine. Therefore, the developed EC-SERS chip is very promising to be used in routine and early diagnosis of pregnancy toxemia and may be used in many other medical tests, food safety, and biotechnology applications.
Collapse
|
26
|
Fazio E, Gökce B, De Giacomo A, Meneghetti M, Compagnini G, Tommasini M, Waag F, Lucotti A, Zanchi CG, Ossi PM, Dell’Aglio M, D’Urso L, Condorelli M, Scardaci V, Biscaglia F, Litti L, Gobbo M, Gallo G, Santoro M, Trusso S, Neri F. Nanoparticles Engineering by Pulsed Laser Ablation in Liquids: Concepts and Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2317. [PMID: 33238455 PMCID: PMC7700616 DOI: 10.3390/nano10112317] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 12/12/2022]
Abstract
Laser synthesis emerges as a suitable technique to produce ligand-free nanoparticles, alloys and functionalized nanomaterials for catalysis, imaging, biomedicine, energy and environmental applications. In the last decade, laser ablation and nanoparticle generation in liquids has proven to be a unique and efficient technique to generate, excite, fragment and conjugate a large variety of nanostructures in a scalable and clean way. In this work, we give an overview on the fundamentals of pulsed laser synthesis of nanocolloids and new information about its scalability towards selected applications. Biomedicine, catalysis and sensing are the application areas mainly discussed in this review, highlighting advantages of laser-synthesized nanoparticles for these types of applications and, once partially resolved, the limitations to the technique for large-scale applications.
Collapse
Affiliation(s)
- Enza Fazio
- Department of Mathematical and Computational Sciences, Physics and Earth Physics, University of Messina, Viale F. Stagno D’Alcontres 31, I-98166 Messina, Italy; (G.G.); (F.N.)
| | - Bilal Gökce
- Department of Technical Chemistry I and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Universitätsstrasse 7, 45141 Essen, Germany; (B.G.); (F.W.)
| | - Alessandro De Giacomo
- Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
- CNR-NANOTEC, c/o Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (M.M.); (F.B.); (L.L.); (M.G.)
| | - Giuseppe Compagnini
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (G.C.); (L.D.); (M.C.); (V.S.)
| | - Matteo Tommasini
- Department of Chemistry, Materials, Chemical Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy; (M.T.); (A.L.); (C.G.Z.)
| | - Friedrich Waag
- Department of Technical Chemistry I and Center for Nanointegration Duisburg-Essen, University of Duisburg-Essen, Universitätsstrasse 7, 45141 Essen, Germany; (B.G.); (F.W.)
| | - Andrea Lucotti
- Department of Chemistry, Materials, Chemical Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy; (M.T.); (A.L.); (C.G.Z.)
| | - Chiara Giuseppina Zanchi
- Department of Chemistry, Materials, Chemical Engineering, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy; (M.T.); (A.L.); (C.G.Z.)
| | - Paolo Maria Ossi
- Department of Energy & Center for NanoEngineered Materials and Surfaces—NEMAS, Politecnico di Milano, Piazza Leonardo da Vinci 32, I-20133 Milano, Italy;
| | - Marcella Dell’Aglio
- CNR-NANOTEC, c/o Department of Chemistry, University of Bari, Via Orabona 4, 70126 Bari, Italy;
| | - Luisa D’Urso
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (G.C.); (L.D.); (M.C.); (V.S.)
| | - Marcello Condorelli
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (G.C.); (L.D.); (M.C.); (V.S.)
| | - Vittorio Scardaci
- Department of Chemical Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy; (G.C.); (L.D.); (M.C.); (V.S.)
| | - Francesca Biscaglia
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (M.M.); (F.B.); (L.L.); (M.G.)
| | - Lucio Litti
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (M.M.); (F.B.); (L.L.); (M.G.)
| | - Marina Gobbo
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, Italy; (M.M.); (F.B.); (L.L.); (M.G.)
| | - Giovanni Gallo
- Department of Mathematical and Computational Sciences, Physics and Earth Physics, University of Messina, Viale F. Stagno D’Alcontres 31, I-98166 Messina, Italy; (G.G.); (F.N.)
| | - Marco Santoro
- STMicroelectronics S.R.L., Stradale Primosole 37, 95121 Catania, Italy;
| | - Sebastiano Trusso
- CNR-IPCF Istituto per i Processi Chimico-Fisici, 98053 Messina, Italy;
| | - Fortunato Neri
- Department of Mathematical and Computational Sciences, Physics and Earth Physics, University of Messina, Viale F. Stagno D’Alcontres 31, I-98166 Messina, Italy; (G.G.); (F.N.)
| |
Collapse
|
27
|
Zoleo A, Rossi C, Poggi G, Rossi M, Meneghetti M, Baglioni P. Spotting aged dyes on paper with SERS. Phys Chem Chem Phys 2020; 22:24070-24076. [PMID: 33079093 DOI: 10.1039/d0cp04099a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Surface enhanced Raman spectroscopy (SERS) is a highly sensitive technique for the non- or minimally invasive identification of molecules at very low concentrations. In this work, SERS is exploited using naked laser-ablated gold nanoparticles (AuNPs) for the detection of dyes on artificially aged paper inked with a ballpoint pen. Although several studies on inks with SERS are present in the literature, most of them report on the investigations on freshly prepared products, and less information is present on the detection of aged dyes and inks using SERS. Ballpoint inks are commonly used in daily activities, but have also been employed by several contemporary artists. These inks are very sensitive to light, and they discolor rapidly, making their detection demanding. In the present work, the SERS spectra of a ballpoint pen ink on two types of paper were analyzed after light-induced ageing, and the importance of the dye-AuNP interaction is discussed. The results show that the interpretation of the SERS spectra of the aged samples, such as those of interest in the Cultural Heritage field, is a tricky and delicate operation and that the diffusion of the dyes to the hot spot regions of the plasmonic nanoparticles plays a pivotal role in the detection of degraded ink components. Therefore, appropriate evaluation of the factors affecting the molecule-plasmonic nanoparticle interactions and of the history of the artwork to be analyzed is fundamental to avoiding the misinterpretation of the spectra and, consequently, of the original composition of the analyzed artwork.
Collapse
Affiliation(s)
- Alfonso Zoleo
- Department of Chemical Sciences, University of Padova, Italy, Via Marzolo 1, 35131 Padova, Italy.
| | - Cecilia Rossi
- Department of Chemical Sciences, University of Padova, Italy, Via Marzolo 1, 35131 Padova, Italy.
| | - Giovanna Poggi
- Department of Chemistry & CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy.
| | - Marta Rossi
- Department of Chemistry & CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy.
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, Italy, Via Marzolo 1, 35131 Padova, Italy.
| | - Piero Baglioni
- Department of Chemistry & CSGI, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy.
| |
Collapse
|
28
|
Litti L, Colusso A, Pinto M, Ruli E, Scarsi A, Ventura L, Toffoli G, Colombatti M, Fracasso G, Meneghetti M. SERRS multiplexing with multivalent nanostructures for the identification and enumeration of epithelial and mesenchymal cells. Sci Rep 2020; 10:15805. [PMID: 32978492 PMCID: PMC7519640 DOI: 10.1038/s41598-020-72911-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 09/08/2020] [Indexed: 12/21/2022] Open
Abstract
Liquid biopsy represents a new frontier of cancer diagnosis and prognosis, which allows the isolation of tumor cells released in the blood stream. The extremely low abundance of these cells needs appropriate methodologies for their identification and enumeration. Herein we present a new protocol based on surface enhanced resonance Raman scattering (SERRS) gold multivalent nanostructures to identify and enumerate tumor cells with epithelial and mesenchimal markers. The validation of the protocol is obtained with spiked samples of peripheral blood mononuclear cells (PBMC). Gold nanostructures are functionalized with SERRS labels and with antibodies to link the tumor cells. Three types of such nanosystems were simultaneously used and the protocol allows obtaining the identification of all individual tumor cells with the help of a Random Forest ensemble learning method.
Collapse
Affiliation(s)
- Lucio Litti
- Department of Chemical Science, University of Padova, via Marzolo 1, 35131, Padua, Italy
| | - Andrea Colusso
- Department of Chemical Science, University of Padova, via Marzolo 1, 35131, Padua, Italy
| | - Marcella Pinto
- Department of Chemical Science, University of Padova, via Marzolo 1, 35131, Padua, Italy
| | - Erlis Ruli
- Department of Statistical Sciences, University of Padova, via Battisti 241, 35121, Padua, Italy
| | - Alessia Scarsi
- Department of Chemical Science, University of Padova, via Marzolo 1, 35131, Padua, Italy
| | - Laura Ventura
- Department of Statistical Sciences, University of Padova, via Battisti 241, 35121, Padua, Italy
| | - Giuseppe Toffoli
- SOC Farmacologia Sperimentale e Clinica, Centro di Riferimento Oncologico, Via Franco Gallini 2, 33081, Aviano, Italy
| | - Marco Colombatti
- Department of Medicine, University of Verona, P.le L.A. Scuro, 37134, Verona, Italy
| | - Giulio Fracasso
- Department of Medicine, University of Verona, P.le L.A. Scuro, 37134, Verona, Italy.
| | - Moreno Meneghetti
- Department of Chemical Science, University of Padova, via Marzolo 1, 35131, Padua, Italy.
| |
Collapse
|
29
|
Zalaffi MS, Litti L, Canton P, Meneghetti M, Moretto LM, Ugo P. Preparation and characterization of Ag-nanostars@Au-nanowires hierarchical nanostructures for highly sensitive surface enhanced Raman spectroscopy. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/aba104] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Abstract
In this work we study the surface enhanced Raman scattering (SERS) produced by hierarchical nanostructures obtained by coupling different anisotropic nanomaterial of two SERS active metals, namely Ag nanostars (AgNSs) and Au nanowires (AuNWs). Ag nanostars (AgNSs) are prepared, by a two-step one-pot synthesis by reduction of AgNO3 with hydroxylamine, trisodium citrate and NaOH. AuNWs are obtained by electroless templated synthesis in track-etched polycarbonate membranes with following etching of the template. The two precursors are bound together by bridging with the bifunctional cysteamine molecule, obtaining AgNS@AuNW hierarchical structures. Benzenethiol (BT) is adsorbed on the nanostructured material and used as SERS probe to study the amplification of Raman signals. Experimental results indicate significantly larger Raman enhancement when BT is adsorbed onto the AgNS@AuNW in comparison to AuNWs alone or decorated with quasi-spherical silver nanoparticles obtaining AgNP@AuNW. Digital simulations performed by the boundary element method agree with the experimental findings, showing higher number of hot spots and significantly higher SERS enhancements for AgNS@AuNW versus AuNWs or AgNSs or AgNP@AuNW.
Collapse
|
30
|
Shin H, Oh S, Kang D, Choi Y. Protein Quantification and Imaging by Surface-Enhanced Raman Spectroscopy and Similarity Analysis. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903638. [PMID: 32537409 PMCID: PMC7284192 DOI: 10.1002/advs.201903638] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 02/07/2020] [Accepted: 03/09/2020] [Indexed: 05/29/2023]
Abstract
Protein quantification techniques such as immunoassays have been improved considerably, but they have several limitations, including time-consuming procedures, low sensitivity, and extrinsic detection. Because direct surface-enhanced Raman spectroscopy (SERS) can detect intrinsic signals of proteins, it can be used as an effective detection method. However, owing to the complexity and reliability of SERS signals, SERS is rarely adopted for quantification without a purified target protein. This study reports an efficient and effective direct SERS-based immunoassay (SERSIA) technique for protein quantification and imaging. SERSIA relies on the uniform coating of gold nanoparticles (GNPs) on a target-protein-immobilized substrate by simple centrifugation. As centrifugation induces close contact between the GNPs and target proteins, the intrinsic signals of the target protein can be detected. For quantification, the protein levels in a cell lysate are estimated using similarity analysis between antibody-only and protein-conjugated samples. This method reliably estimates the protein level at a sub-picomolar detection limit. Furthermore, this method enables quantitative imaging of immobilized protein at a micrometer range. Because this technique is fast, sensitive, and requires only one type of antibody, this approach can be a useful method to detect proteins in biological samples.
Collapse
Affiliation(s)
- Hyunku Shin
- Department of Bio‐convergence EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Seunghyun Oh
- School of Biomedical EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Daehyeon Kang
- School of Biomedical EngineeringKorea UniversitySeoul02841Republic of Korea
| | - Yeonho Choi
- Department of Bio‐convergence EngineeringKorea UniversitySeoul02841Republic of Korea
- School of Biomedical EngineeringKorea UniversitySeoul02841Republic of Korea
- Department of BioengineeringKorea UniversitySeoul02841Republic of Korea
| |
Collapse
|
31
|
Litti L, Reguera J, García de Abajo FJ, Meneghetti M, Liz-Marzán LM. Manipulating chemistry through nanoparticle morphology. NANOSCALE HORIZONS 2019; 5:102-108. [PMID: 32756696 DOI: 10.1039/c9nh00456d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We demonstrate that the protonation chemistry of molecules adsorbed at nanometer distances from the surface of anisotropic gold nanoparticles can be manipulated through the effect of surface morphology on the local proton density of an organic coating. Direct evidence of this remarkable effect was obtained by monitoring surface-enhanced Raman scattering (SERS) from mercaptobenzoic acid and 4-aminobenzenethiol molecules adsorbed on gold nanostars. By smoothing the initially sharp nanostar tips through a mild thermal treatment, changes were induced on protonation of the molecules, which can be observed through changes in the measured SERS spectra. These results shed light on the local chemical environment near anisotropic colloidal nanoparticles and open an alternative avenue to actively control chemistry through surface morphology.
Collapse
Affiliation(s)
- Lucio Litti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Javier Reguera
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain. and CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain and Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - F Javier García de Abajo
- ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain and ICREA-Institució Catalana de Recerca I Estudis Avanca[combining cedilla]ts, Passeig Lluís Companys 23, 08010 Barcelona, Spain
| | - Moreno Meneghetti
- Department of Chemical Sciences, University of Padova, via Marzolo 1, 35131 Padova, Italy.
| | - Luis M Liz-Marzán
- CIC biomaGUNE, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain and Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain and CIBER-BBN, Paseo de Miramón 182, 20014 Donostia-San Sebastián, Spain
| |
Collapse
|
32
|
Facile Fabrication of Micro/Nano Hierarchical SERS Sensor via Anisotropic Etching and Electrochemical Treatment for Malachite Green Detection. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9235237] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
We propose a facile method to produce micro/nano hierarchical surface-enhanced Raman scattering (SERS) active substrates using simple steps and inexpensive costs. The proposed SERS substrate is a silicon pyramid array covered by a nanostructured gold film (AuNS @ SiPA). Through finite element method (FEM) simulation, we showed that many strong local electric field enhancements (hot spots) were formed between the nano-gap of gold nanostructures. In addition, the micron-scale pyramid structure not only increases the sensing surface area of the sensor, but also helps trap light. By combining these micro and nano structures, the proposed micro/nano hierarchical SERS sensor exhibited high sensitivity. Experimental results confirmed that the AuNS @ SiPA substrate has high sensitivity. The SERS signal enhancement factor obtained from the Rhodamine 6G (R6G) probe molecules was as high as 1 × 107 and the SERS substrates were found to be able to detect a very low concentration of 0.01 nM malachite green (MG) solution. Therefore, this study provides a novel and practical method for fabricating SERS substrates that can facilitate the use of SERS in medicine, food safety, and biotechnology.
Collapse
|
33
|
Lartey JA, Harms JP, Frimpong R, Mulligan CC, Driskell JD, Kim JH. Sandwiching analytes with structurally diverse plasmonic nanoparticles on paper substrates for surface enhanced Raman spectroscopy. RSC Adv 2019; 9:32535-32543. [PMID: 35529713 PMCID: PMC9073094 DOI: 10.1039/c9ra05399a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Accepted: 10/04/2019] [Indexed: 01/22/2023] Open
Abstract
This report describes the systematic combination of structurally diverse plasmonic metal nanoparticles (AgNPs, AuNPs, Ag core–Au shell NPs, and anisotropic AuNPs) on flexible paper-based materials to induce signal-enhancing environments for surface enhanced Raman spectroscopy (SERS) applications. The anisotropic AuNP-modified paper exhibits the highest SERS response due to the surface area and the nature of the broad surface plasmon resonance (SPR) neighboring the Raman excitation wavelength. The subsequent addition of a second layer with these four NPs (e.g., sandwich arrangement) leads to the notable increase of the SERS signals by inducing a high probability of electromagnetic field environments associated with the interparticle SPR coupling and hot spots. After examining sixteen total combinations, the highest SERS response is obtained from the second layer with AgNPs on the anisotropic AuNP paper substrate, which allows for a higher calibration sensitivity and wider dynamic range than those of typical AuNP–AuNP arrangement. The variation of the SERS signals is also found to be below 20% based on multiple measurements (both intra-sample and inter-sample). Furthermore, the degree of SERS signal reductions for the sandwiched analytes is notably slow, indicating their increased long-term stability. The optimized combination is then employed in the detection of let-7f microRNA to demonstrate their practicability as SERS substrates. Precisely introducing interparticle coupling and hot spots with readily available plasmonic NPs still allows for the design of inexpensive and practical signal enhancing substrates that are capable of increasing the calibration sensitivity, extending the dynamic range, and lowering the detection limit of various organic and biological molecules. Systematic combination of plasmonic nanoparticles on a paper-based substrate introduces SERS-based signal-enhancement environments via interparticle coupling and hot spots.![]()
Collapse
Affiliation(s)
| | - John P. Harms
- Department of Chemistry
- Illinois State University
- Normal
- USA
| | | | | | | | - Jun-Hyun Kim
- Department of Chemistry
- Illinois State University
- Normal
- USA
| |
Collapse
|