1
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Lachowski K, Chiang HT, Torkelson K, Zhou W, Zhang S, Pfaendtner J, Pozzo LD. Anisotropic Gold Nanomaterial Synthesis Using Peptide Facet Specificity and Timed Intervention. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15878-15888. [PMID: 37910774 PMCID: PMC10653084 DOI: 10.1021/acs.langmuir.3c01577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/01/2023] [Accepted: 10/18/2023] [Indexed: 11/03/2023]
Abstract
Thin metal particles with two-dimensional (2D) symmetry are attractive for multiple applications but are difficult to synthesize in a reproducible manner. Although molecules that selectively adsorb to facets have been used to control nanoparticle shape, there is still limited research into the temporal control of growth processes to control these structural outcomes. Moreover, much of the current research into the growth of thin 2D particles lacks mechanistic details. In this work, we study why the substitution of isoleucine for methionine in a gold-binding peptide (Z2, RMRMKMK) results in an increase in gold nanoparticle anisotropy. Nanoplatelet growth in the presence of Z2M246I (RIRIKIK) is characterized using in situ small-angle X-ray scattering (SAXS) and UV-vis spectroscopy. Fitting time-resolved SAXS profiles reveal that 10 nm-thick particles with 2D symmetry are formed within the first few minutes of the reaction. Next, through a combination of electron diffraction and molecular dynamics simulations, we show that substitution of methionine for isoleucine increases the (111) facet selectivity in Z2M246I, and we conclude that this is key to the growth of nanoplatelets. However, the potential application of nanoplatelets formed using Z2M246I is limited due to their uncontrolled lateral growth, aggregation, and rapid sedimentation. Therefore, we use a liquid-handling robot to perform temporally controlled synthesis and dynamic intervention through the addition of Z2 to nanoplatelets grown in the presence of Z2M246I at different times. UV-vis spectroscopy, dynamic light scattering, and electron microscopy show that dynamic intervention results in control over the mean size and stability of plate-like particles. Finally, we use in situ UV-vis spectroscopy to study plate-like particle growth at different times of intervention. Our results demonstrate that both the selectivity and magnitude of binding free energy toward lattices are important for controlling nanoparticle growth pathways.
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Affiliation(s)
- Kacper
J. Lachowski
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
- Molecular
Engineering and Sciences Institute, University
of Washington, Seattle, Washington 98105, United States
| | - Huat Thart Chiang
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - Kaylyn Torkelson
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - Wenhao Zhou
- Department
of Material Science and Engineering, University
of Washington, Seattle, Washington 98105, United States
- Physical
Sciences Division, Pacific Northwest National
Laboratory, Richland, Washington 99352, United States
| | - Shuai Zhang
- Molecular
Engineering and Sciences Institute, University
of Washington, Seattle, Washington 98105, United States
- Department
of Material Science and Engineering, University
of Washington, Seattle, Washington 98105, United States
- Physical
Sciences Division, Pacific Northwest National
Laboratory, Richland, Washington 99352, United States
| | - Jim Pfaendtner
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
| | - Lilo D. Pozzo
- Department
of Chemical Engineering, University of Washington, Seattle, Washington 98105, United States
- Molecular
Engineering and Sciences Institute, University
of Washington, Seattle, Washington 98105, United States
- Department
of Material Science and Engineering, University
of Washington, Seattle, Washington 98105, United States
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2
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Kim MG, Jue M, Lee KH, Lee EY, Roh Y, Lee M, Lee HJ, Lee S, Liu H, Koo B, Jang YO, Kim EY, Zhen Q, Kim SH, Kim JK, Shin Y. Deep Learning Assisted Surface-Enhanced Raman Spectroscopy (SERS) for Rapid and Direct Nucleic Acid Amplification and Detection: Toward Enhanced Molecular Diagnostics. ACS NANO 2023; 17:18332-18345. [PMID: 37703463 DOI: 10.1021/acsnano.3c05633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/15/2023]
Abstract
Surface-enhanced Raman scattering (SERS) has evolved into a robust analytical technique capable of detecting a variety of biomolecules despite challenges in securing a reliable Raman signal. Conventional SERS-based nucleic acid detection relies on hybridization assays, but reproducibility and signal strength issues have hindered research on directly amplifying nucleic acids on SERS surfaces. This study introduces a deep learning assisted ZnO-Au-SERS-based direct amplification (ZADA) system for rapid, sensitive molecular diagnostics. The system employs a SERS substrate fabricated by depositing gold on uniformly grown ZnO nanorods. These nanorods create hot spots for the amplification of the target nucleic acids directly on the SERS surface, eliminating the need for postamplification hybridization and Raman reporters. The limit of detection of the ZADA system was superior to those of the conventional amplification methods. Clinical validation of the ZADA system with coronavirus disease 2019 (COVID-19) samples from human patients yielded a sensitivity and specificity of 92.31% and 81.25%, respectively. The integration of a deep learning program further enhanced sensitivity and specificity to 100% and reduced SERS analysis time, showcasing the potential of the ZADA system for rapid, label-free disease diagnosis via direct nucleic acid amplification and detection within 20 min.
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Affiliation(s)
- Myoung Gyu Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Miyeon Jue
- Biomedical Engineering Research Center, Asan Medical Center, Seoul 05505, Republic of Korea
- Apollon, Inc., 68 Achasan-ro, Seongdong-gu, Seoul 05505, Republic of Korea
| | - Kwan Hee Lee
- Department of Medical Science, Asan Medical Institute of Convergence Science and Technology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Eun Yeong Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yeonjeong Roh
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Minju Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Hyo Joo Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sanghwa Lee
- Biomedical Engineering Research Center, Asan Medical Center, Seoul 05505, Republic of Korea
| | - Huifang Liu
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Bonhan Koo
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Yoon Ok Jang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Eui Yeon Kim
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Qiao Zhen
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
| | - Sung-Han Kim
- Department of Infectious Diseases, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Jun Ki Kim
- Biomedical Engineering Research Center, Asan Medical Center, Seoul 05505, Republic of Korea
- Department of Biomedical Engineering, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Republic of Korea
| | - Yong Shin
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, 50 Yonsei Ro, Seodaemun-gu, Seoul 03722, Republic of Korea
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3
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Puente C, Pineda Aguilar N, Gómez I, López I. Morphology Effect of Photoconverted Silver Nanoparticles on the Performance of Surface-Enhanced Raman Spectroscopy Substrates. ACS OMEGA 2023; 8:12630-12635. [PMID: 37065055 PMCID: PMC10099118 DOI: 10.1021/acsomega.2c05958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
Nowadays, surface-enhanced Raman spectroscopy (SERS) substrates are of great interest for many researchers, aiming to fabricate substrates with high sensitivity and low fabrication costs. In this study, we photoconverted Ag nanoparticles by using a simple and affordable red-green-blue light-emitting diode photoreactor. The obtained dispersions were transformed into a paste of nanoparticles and used to fabricate SERS substrates by a simple drop-casting process under controlled humidity conditions. The performance of these substrates was tested using p-aminothiophenol as a Raman probe. The results indicate that the particle shape has an influence on the Raman intensities and substrate sensitivity, showing a significant enhancement as the number of faces and vertices in the particle increases.
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Affiliation(s)
- Carlos Puente
- Facultad
de Ciencias Químicas, Centro de Investigación en Biotecnología
y Nanotecnología, Laboratorio de Nanociencias y Nanotecnología, Universidad Autónoma de Nuevo León (UANL), Autopista al Aeropuerto Internacional
Mariano Escobedo Km. 10, Parque de Investigación e Innovación
Tecnológica, Apodaca 66629, Nuevo León, Mexico
| | - Nayely Pineda Aguilar
- Centro
de Investigación en Materiales Avanzados, S.C. (CIMAV), Unidad Monterrey, Alianza Norte
202, Apodaca 66628, Nuevo León, Mexico
| | - Idalia Gómez
- Facultad
de Ciencias Químicas, Laboratorio de Materiales I, Av. Universidad,
Cd. Universitaria, Universidad Autónoma
de Nuevo León, UANL, 66455 San Nicolás de los Garza, Nuevo León, Mexico
| | - Israel López
- Facultad
de Ciencias Químicas, Centro de Investigación en Biotecnología
y Nanotecnología, Laboratorio de Nanociencias y Nanotecnología, Universidad Autónoma de Nuevo León (UANL), Autopista al Aeropuerto Internacional
Mariano Escobedo Km. 10, Parque de Investigación e Innovación
Tecnológica, Apodaca 66629, Nuevo León, Mexico
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Moram SSB, Byram C, Soma VR. Femtosecond laser patterned silicon embedded with gold nanostars as a hybrid SERS substrate for pesticide detection. RSC Adv 2023; 13:2620-2630. [PMID: 36741174 PMCID: PMC9844677 DOI: 10.1039/d2ra07859g] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Accepted: 01/10/2023] [Indexed: 01/19/2023] Open
Abstract
We have developed simple and cost-effective surface-enhanced Raman scattering (SERS) substrates for the trace detection of pesticide (thiram and thiabendazole) and dye (methylene blue and Nile blue) molecules. Surface patterns (micro/nanostructures) on silicon (Si) substrates were fabricated using the technique of femtosecond (fs) laser ablation in ambient air. Different surface patterns were achieved by tuning the number of laser pulses per unit area (4200, 8400, 42 000, and 84 000 pulses per mm2) on Si. Subsequently, chemically synthesized gold (Au) nanostars were embedded in these laser-patterned areas of Si to achieve a plasmonic active hybrid SERS substrate. Further, the SERS performance of the as-prepared Au nanostar embedded Si substrates were tested with different probe molecules. The as-prepared substrates allowed us to detect a minimum concentration of 0.1 ppm in the case of thiram, 1 ppm in the case of thiabendazole (TBZ), 1.6 ppb in the case of methylene blue (MB), and 1.8 ppb in case of Nile blue (NB). All these were achieved using a simple, field-deployable, portable Raman spectrometer. Additionally, the optimized SERS substrate demonstrated ∼21 times higher SERS enhancement than the Au nanostar embedded plain Si substrate. Furthermore, the optimized SERS platform was utilized to detect a mixture of dyes (MB + NB) and pesticides (thiram + TBZ). The possible reasons for the observed additional enhancement are elucidated.
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Affiliation(s)
- Sree Satya Bharati Moram
- Advanced Centre for Research in High Energy Materials (ACRHEM), DRDO Industry Academia–Centre of Excellence (DIA-COE), University of HyderabadProf. C. R. Rao RoadHyderabad 500046TelanganaIndia
| | - Chandu Byram
- Department of Physics, College of Arts and Sciences, University of Dayton300 College ParkDaytonOhio 45469USA
| | - Venugopal Rao Soma
- Advanced Centre for Research in High Energy Materials (ACRHEM), DRDO Industry Academia–Centre of Excellence (DIA-COE), University of HyderabadProf. C. R. Rao RoadHyderabad 500046TelanganaIndia
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5
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Zhang W, Zhu X, Chen Z, Belotelov VI, Song Y. Silver Nanopillar Arrayed Thin Films with Highly Surface-Enhanced Raman Scattering for Ultrasensitive Detection. ACS OMEGA 2022; 7:25726-25731. [PMID: 35910149 PMCID: PMC9330273 DOI: 10.1021/acsomega.2c03022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Surface-enhanced Raman scattering (SERS) technique based on surface plasmon resonance has been considerably investigated in recent years due to its superior sensitivity in the detection of organic or biological molecules at trace levels. However, most research usually focuses on artificial architectures as SERS substrates that always have a complex and expensive micro-nanofabrication process. The high cost of masks for SERS substrates becomes a key obstacle for the widespread commercialization of SERS technology. In this paper, a biomimetic SERS substrate composed of silver-coated nanopillar arrays on the top of a cicada wing was advanced to overcome these challenges as both substrates and masks. Benefiting from the high near-field plasmon resonance coupling at the limited space among neighboring nanopillars, a dramatically increased SERS signal can be achieved using rhodamine 6G (R6G) as a model molecule. Encouragingly, the analytical enhancement factor of the order of more than 108 has been conveniently realized with a reliable detection concentration of R6G of about 100 pM or less. This work provides a promising route for designing cost-effective and highly sensitive SERS substrates and the related mask fabrication using our previously proposed template transfer nanoimprint.
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Affiliation(s)
- Weiwei Zhang
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
- School of Mathematics and Physics, Hebei GEO University, 136 East Huai'an Road, Yuhua District, Shijiazhuang 050031, China
- Shunde Graduate School, University of Science and Technology Beijing. Daliang Zhihui Road 2, Shunde Distinct, Foshan 528399, China
| | - Xiaomin Zhu
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Zhanghua Chen
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
| | - Vladimir I Belotelov
- Vernadsky Crimean Federal University, Vernadskogo av. 4, Simferopol 295007, Russia
- NTI Center for Quantum Communications, National University of Science and Technology MISiS, Leninsky prospekt 4, Moscow 119049, Russia
- Photonic and Quantum Technologies School, Lomonosov Moscow State University, Leninskie Gori, 119991 Moscow, Russia
| | - Yujun Song
- Center for Modern Physics Technology, School of Mathematics and Physics, University of Science and Technology Beijing, Beijing, 30 Xueyuan Road, Haidian District, Beijing 100083, China
- Zhengzhou Tianzhao Biomedical Technology Company Ltd., 7 Dongqing Street, Zhengzhou High Tech Development Zone, Zhengzhou 451450, China
- Key Laboratory of Pulsed Power Translational Medicine of Zhejiang Province, Hangzhou Ruidi Biotechnology Company Ltd., Room 803, Bldg. 4, 4959 Yuhangtang Road, Cangqian Street, Hangzhou, Zhejiang 310023, China
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6
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Tatar AS, Farcău C, Vulpoi A, Boca S, Astilean S. Development and evaluation of a gold nanourchin (GNU)-based sandwich architecture for SERS immunosensing in liquid. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 273:121069. [PMID: 35231760 DOI: 10.1016/j.saa.2022.121069] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 06/14/2023]
Abstract
Nanosensors represent a class of emerging promising nanotools that can be used for the rapid, sensitive and specific detection of relevant molecules such as biomarkers of cancer or other diseases. The sensing platforms that rely on the exceptional physical properties of colloidal gold nanoparticles have gained a special attraction and various architectural designs were proposed with the aim of rapid and real-time detection, identification and monitoring of the capturing events. Moreover, biomarker sensing in liquid samples allows a more facile implementation of the nanosensors by circumventing the need for invasive practices such as biopsies, in favor of non-invasive investigations with potential for use as point-of-care assays. Herein, we propose a sandwich-type surface enhanced Raman scattering (SERS) immuno-nanosensor which is aimed for detecting and quantifying Carcinoembryonic antigen-related cell adhesion molecule 5 (CEA-CAM5), a protein involved in intercellular adhesion and signaling pathways that acts as a tumor marker in several types of cancer. For constructing the proposed system, colloidal gold nano spheres (GNS) and gold nano-urchins (GNU) were chemically synthesized, labeled with SERS active molecules, conjugated with polymers, functionalized with antibodies as capturing substrates and tested in two different sensing configurations: pairs of GNUs-GNUs and GNUs-GNSs. When the target antigen is present in the analyte solution, nanoparticle bridging occurs and a subsequent amplification of the characteristic Raman signal of the label molecule appears due to the formation of hot-spots in interparticle gaps. The capability of observing small analyte concentrations in liquid samples with an easy-to-handle portable Raman device makes the proposed system feasible for rapid, non-invasive and cost-effective clinical or laboratory use.
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Affiliation(s)
- Andra-Sorina Tatar
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania
| | - Cosmin Farcău
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania; National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293 Cluj-Napoca, Romania.
| | - Adriana Vulpoi
- Nanostructured Materials and Bio-Nano-Interfaces Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania.
| | - Sanda Boca
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania.
| | - Simion Astilean
- Nanobiophotonics and Laser Microspectroscopy Center, Interdisciplinary Research Institute in Bio-Nano-Sciences, Babes-Bolyai University, 42 Treboniu Laurian Street, 400271 Cluj-Napoca, Romania; Biomolecular Physics Department, Faculty of Physics, Babes-Bolyai University, 1 Kogalniceanu Street, 400084 Cluj-Napoca, Romania.
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7
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Rathod J, Byram C, Kanaka RK, Sree Satya Bharati M, Banerjee D, Akkanaboina M, Soma VR. Hybrid Surface-Enhanced Raman Scattering Substrates for the Trace Detection of Ammonium Nitrate, Thiram, and Nile Blue. ACS OMEGA 2022; 7:15969-15981. [PMID: 35571848 PMCID: PMC9096967 DOI: 10.1021/acsomega.2c01095] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 04/18/2022] [Indexed: 06/15/2023]
Abstract
We report the fabrication and performance evaluation of hybrid surface-enhanced Raman scattering (SERS) substrates involving laser ablation and chemical routes for the trace-level detection of various analyte molecules. Initially, picosecond laser ablation experiments under ambient conditions were performed on pure silver (Ag) and gold (Au) substrates to achieve distinct nanosized features on the surface. The properties of the generated surface features on laser-processed portions of Ag/Au targets were systematically analyzed using UV-visible reflection and field emission scanning electron microscopy studies. Later, hybrid-SERS substrates were achieved by grafting the chemically synthesized Au nanostars on the plain and laser-processed plasmonic targets. Subsequently, we employed these as SERS platforms for the detection of a pesticide (thiram), a molecule used in explosive compositions [ammonium nitrate (AN)], and a dye molecule [Nile blue (NB)]. A comparative SERS study between the Au nanostar-decorated bare glass, silicon, Ag, Au, and laser-processed Ag and Au targets has been established. Our studies and the obtained data have unambiguously determined that laser-processed Ag structures have demonstrated reasonably good enhancements in the Raman signal intensities for distinct analytes among other substrates. Importantly, the fabricated hybrid SERS substrate of "Au nanostar-decorated laser-processed Ag" exhibited up to eight times enhancement in the SERS intensity compared to laser-processed Ag (without nanostars), as well as up to three times enhancement than the Au nanostar-loaded plain Ag substrates. Additionally, the achieved detection limits from the Au nanostar-decorated laser-processed Ag SERS substrate were ∼50 pM, ∼5 nM, and ∼5 μM for NB, thiram, and AN, respectively. The estimated enhancement factors accomplished from the Au nanostar-decorated laser-processed Ag substrate were ∼106, ∼106, and ∼104 for NB, thiram, and AN, respectively.
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Affiliation(s)
- Jagannath Rathod
- Advanced
Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Chandu Byram
- Advanced
Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Ravi Kumar Kanaka
- School
of Physics, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Moram Sree Satya Bharati
- Advanced
Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Dipanjan Banerjee
- Advanced
Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
| | | | - Venugopal Rao Soma
- Advanced
Centre of Research in High Energy Materials (ACRHEM), University of Hyderabad, Hyderabad 500046, Telangana, India
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8
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In-Situ Monitoring the SERS Spectra of para-Aminothiophenol Adsorbed on Plasmon-Tunable Au@Ag Core–Shell Nanostars. NANOMATERIALS 2022; 12:nano12071156. [PMID: 35407274 PMCID: PMC9000786 DOI: 10.3390/nano12071156] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/26/2022] [Accepted: 03/28/2022] [Indexed: 02/04/2023]
Abstract
Plasmon-induced photocatalysis on noble metal surfaces has attracted broad attention due to its application in sunlight energy conversion, while the selectivity of plasmonic platforms remains unclear. Herein, we present the controlled plasmon-mediated oxidation of para-aminothiophenol (p-ATP) by employing Au@Ag core–shell nanostars with tunable tip plasmons in visible–near-infrared range as reactors. In-situ Raman measurements indicate that Au@Ag core–shell nanostars essentially promote the conversion of p-ATP to 4,4′-dimercaptoazobenzene (DMAB) due to hot carriers excited by localized surface plasmon resonance. Au@Ag nanostars with plasmon modes under resonant light excitation suggested higher catalytic efficiency, as evidenced by the larger intensity ratios between 1440 cm−1 (N=N stretching of DMAB) and 1080 cm−1 shifts (C–S stretching of p-ATP). Importantly, the time-dependent surface-enhanced Raman scattering spectra showed that the conversion efficiency of p-ATP was mainly dictated by the resonance condition between the tip plasmon mode of Au@Ag core–shell nanostars and the excitation light, as well as the choice of excitation wavelength. These results show that plasmon bands of metal nanostructures play an important role in the efficiency of plasmon-driven photocatalysis.
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9
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Lopes DS, Vono LLR, Miranda EV, Ando RA, Corio P. Inhibition of p‐nitrothiophenol catalytic hydrogenation on Ag‐containing AgAu/Pd/TiO2 plasmonic catalysts probed in situ by SERS. ChemCatChem 2022. [DOI: 10.1002/cctc.202101943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Douglas S. Lopes
- University of Sao Paulo: Universidade de Sao Paulo Chemistry Av. Prof. Lineu Prestes, 748 005508900 São Paulo BRAZIL
| | - Lucas L. R. Vono
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Ester V. Miranda
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Rômulo A. Ando
- University of Sao Paulo: Universidade de Sao Paulo Chemistry BRAZIL
| | - Paola Corio
- University of Sao Paulo Institute of Chemistry Av. Prof. Lineu Prestes, 748 05508000 Sao Paulo BRAZIL
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Choi JH, Shin M, Yang L, Conley B, Yoon J, Lee SN, Lee KB, Choi JW. Clustered Regularly Interspaced Short Palindromic Repeats-Mediated Amplification-Free Detection of Viral DNAs Using Surface-Enhanced Raman Spectroscopy-Active Nanoarray. ACS NANO 2021; 15:13475-13485. [PMID: 34369760 DOI: 10.1021/acsnano.1c03975] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Nucleic acid biomarkers have been widely used to detect various viral-associated diseases, including the recent pandemic COVID-19. The CRISPR-Cas-based trans-activating phenomenon has shown excellent potential for developing sensitive and selective detection of nucleic acids. However, the nucleic acid amplification steps are typically required when sensitive and selective monitoring of the target nucleic acid is needed. To overcome the aforementioned challenges, we developed a CRISPR-Cas12a-based nucleic acid amplification-free biosensor by a surface-enhanced Raman spectroscopy (SERS)-assisted ultrasensitive detection system. We integrated the activated CRISPR-Cas12a by viral DNA with a Raman-sensitive system composed of ssDNA-immobilized Raman probe-functionalized Au nanoparticles (RAuNPs) on the graphene oxide (GO)/triangle Au nanoflower array. Using this CRISPR-based Raman-sensitive system improved the detection sensitivity of the multiviral DNAs such as hepatitis B virus (HBV), human papillomavirus 16 (HPV-16), and HPV-18 with an extremely low detection limit and vast detection range from 1 aM to 100 pM without the amplification steps. We suggest that this ultrasensitive amplification-free detection system for nucleic acids can be widely applied to the precise and early diagnosis of viral infections, cancers, and several genetic diseases.
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Affiliation(s)
- Jin-Ha Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
- School of Chemical Engineering, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju, Jeollabuk-do 54896, Republic of Korea
| | - Minkyu Shin
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
| | - Letao Yang
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Brian Conley
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Jinho Yoon
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Sang-Nam Lee
- Uniance Gene Inc., 1107 Teilhard Hall, 35 Baekbeom-Ro, Mapo-Gu, Seoul 04107, Republic of Korea
| | - Ki-Bum Lee
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 123 Bevier Road, Piscataway, New Jersey 08854, United States
| | - Jeong-Woo Choi
- Department of Chemical & Biomolecular Engineering, Sogang University, 35 Baekbeom-ro, Mapo-gu, Seoul 04107, Republic of Korea
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11
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Ortiz-Castillo JE, Gallo-Villanueva RC, Madou MJ, Perez-Gonzalez VH. Anisotropic gold nanoparticles: A survey of recent synthetic methodologies. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213489] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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12
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Vu XH, Dien ND, Ha Pham TT, Trang TT, Ca NX, Tho PT, Vinh ND, Van Do P. The sensitive detection of methylene blue using silver nanodecahedra prepared through a photochemical route. RSC Adv 2020; 10:38974-38988. [PMID: 35518425 PMCID: PMC9057378 DOI: 10.1039/d0ra07869g] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 10/19/2020] [Indexed: 01/31/2023] Open
Abstract
In this work, we have carried out systematic studies on the critical role of polyvinyl pyrrolidone (PVP) and citrate in the well-known chemical reduction route to synthesize silver nanodecahedra (AgND). Silver nitrate (AgNO3) was used as silver source, which can be directly converted to metallic silver after being reduced by sodium borohydride (NaBH4) under blue light-emitting diode (LED) irradiation (λ max = 465 nm), and polyvinyl pyrrolidone (PVP) as a capping agent to assist the growth of AgND. The obtained products were silver nanodecahedra of excellent uniformity and stability with high efficiency and yield. The results showed that PVP acted as a capping agent to stabilize the silver nanoparticles, prolonging the initiation time required for nanodecahedra nucleation, thus inducing anisotropic growth, allowing the size and morphology of the AgND to be controlled successfully. This improved understanding allows a consistent process for the synthesis of AgND with significantly enhanced reproducibility to be developed and the formation mechanism of these nanostructures to be elucidated. This is a simple, cost-effective and easily reproducible method for creating AgND. The typical absorption maxima in the UV-vis spectroscopy of Ag seeds was λ max ∼400 nm and that of AgND was λ max ∼480 nm. The size of the prepared AgND was in the range of 60-80 nm. SEM images confirmed the uniform and high density of AgND when the concentration of PVP was 0.5 mM. The XRD pattern showed that the final product of AgND was highly crystallized. In addition, the prepared AgND can be used to detect methylene blue (MB) in a sensitive manner with good reproducibility and stability using Surface-Enhanced Raman Scattering (SERS) phenomenon. Out of the obtained products, the AgND prepared with 50 min blue LED light irradiation (AgND-50) displayed the strongest SERS signal. Interestingly, MB in diluted solution can be detected with a concentration as low as 10-7 M (the limit of detection, LOD) and the linear dependence between SERS intensity and the MB concentration occurred in the range from 10-7 to 10-6 M. The enhancement factor (EF) of the SERS effect was about 1.602 × 106 with a MB concentration of 10-7 M using 532 nm laser excitation.
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Affiliation(s)
- Xuan Hoa Vu
- Faculty of Physics, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - Nguyen Dac Dien
- Faculty of Labour Protection, Vietnam Trade Union University 169 Tay Son street Hanoi city Vietnam
| | - Thi Thu Ha Pham
- Faculty of Chemistry, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - Tran Thu Trang
- Faculty of Physics, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - N X Ca
- Faculty of Physics, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - P T Tho
- Faculty of Physics, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - Nguyen Dinh Vinh
- Faculty of Chemistry, TNU-University of Sciences Tan Thinh ward Thai Nguyen city Vietnam
| | - Phan Van Do
- Thuyloi University 175 Tay Son, Dong Da Hanoi Vietnam
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13
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Demille TB, Hughes RA, Dominique N, Olson JE, Rouvimov S, Camden JP, Neretina S. Large-area periodic arrays of gold nanostars derived from HEPES-, DMF-, and ascorbic-acid-driven syntheses. NANOSCALE 2020; 12:16489-16500. [PMID: 32790810 DOI: 10.1039/d0nr04141f] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
With arms radiating from a central core, gold nanostars represent a unique and fascinating class of nanomaterials from which extraordinary plasmonic properties are derived. Despite their relevance to sensing applications, methods for fabricating homogeneous populations of nanostars on large-area planar surfaces in truly periodic arrays is lacking. Herein, the fabrication of nanostar arrays is demonstrated through the formation of hexagonal patterns of near-hemispherical gold seeds and their subsequent exposure to a liquid-state chemical environment that is conducive to colloidal nanostar formation. Three different colloidal nanostar protocols were targeted where HEPES, DMF, and ascorbic acid represent a key reagent in their respective redox chemistries. Only the DMF-driven synthesis proved readily adaptable to the substrate-based platform but nanostar-like structures emerged from the other protocols when synthetic controls such as reaction kinetics, the addition of Ag+ ions, and pH adjustments were applied. Because the nanostars were derived from near-hemispherical seeds, they acquired a unique geometry that resembles a conventional nanostar that has been truncated near its midsection. Simulations of plasmonic properties of this geometry reveal that such structures can exhibit maximum near-field intensities that are as much as seven-times greater than the standard nanostar geometry, a finding that is corroborated by surface-enhanced Raman scattering (SERS) measurements showing large enhancement factors. The study adds nanostars to the library of nanostructure geometries that are amenable to large-area periodic arrays and provides a potential pathway for the nanofabrication of SERS substrates with even greater enhancements.
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Affiliation(s)
- Trevor B Demille
- College of Engineering, University of Notre Dame, Notre Dame, Indiana 46556, USA.
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SERS Activity of Silver Nanosphere, Triangular Nanoplates, Hexagonal Nanoplates and Quasi-Spherical Nanoparticles: Effect of Shape and Morphology. COATINGS 2020. [DOI: 10.3390/coatings10030288] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
In this work, we prepared different morphologies of silver nanoparticles: nanosphere, triangular nanoplates, hexagonal nanoplates, and quasi-spherical shapes, through one-step synthesis. Hydrogen peroxide was used as the oxidizing agent during the reduction of silver nitrate by sodium borohydride, in the presence of tri-sodium citrate and poly-vinyl-pyrrolidone. The obtained silver nanoparticles were fully characterized by UV-Vis spectroscopy, Dynamic Light Scattering and Scanning Electron Microscopy, and successfully used as Surface Enhanced Raman Scattering (SERS) substrates. The effect of shape and morphology on the Raman scattering enhancement was evaluated by using methylene blue as target molecules. The Raman measurements demonstrated that the prepared substrates are reliable and sensitive with analytical enhancement factors, estimated to be around 105 with a concentration of methylene blue 1 μM. When triangular and hexagonal nanoplates were tested with different concentrations of analyte, they demonstrated a good linearity in Raman intensity with a good detection of methylene blue 0.1 μM.
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