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Nie C, Shaw I, Chen C. Application of microfluidic technology based on surface-enhanced Raman scattering in cancer biomarker detection: A review. J Pharm Anal 2023; 13:1429-1451. [PMID: 38223444 PMCID: PMC10785256 DOI: 10.1016/j.jpha.2023.08.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 08/02/2023] [Accepted: 08/10/2023] [Indexed: 01/16/2024] Open
Abstract
With the continuous discovery and research of predictive cancer-related biomarkers, liquid biopsy shows great potential in cancer diagnosis. Surface-enhanced Raman scattering (SERS) and microfluidic technology have received much attention among the various cancer biomarker detection methods. The former has ultrahigh detection sensitivity and can provide a unique fingerprint. In contrast, the latter has the characteristics of miniaturization and integration, which can realize accurate control of the detection samples and high-throughput detection through design. Both have the potential for point-of-care testing (POCT), and their combination (lab-on-a-chip SERS (LoC-SERS)) shows good compatibility. In this paper, the basic situation of circulating proteins, circulating tumor cells, exosomes, circulating tumor DNA (ctDNA), and microRNA (miRNA) in the diagnosis of various cancers is reviewed, and the detection research of these biomarkers by the LoC-SERS platform in recent years is described in detail. At the same time, the challenges and future development of the platform are discussed at the end of the review. Summarizing the current technology is expected to provide a reference for scholars engaged in related work and interested in this field.
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Affiliation(s)
- Changhong Nie
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
| | - Ibrahim Shaw
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
| | - Chuanpin Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410013, China
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2
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Alshangiti DM, Ghobashy MM, Alqahtani HA, El-Damhougy TK, Madani M. The energetic and physical concept of gold nanorod-dependent fluorescence in cancer treatment and development of new photonic compounds|review. RSC Adv 2023; 13:32223-32265. [PMID: 37928851 PMCID: PMC10620648 DOI: 10.1039/d3ra05487j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 10/10/2023] [Indexed: 11/07/2023] Open
Abstract
The optical features of gold nanorods (GNR) may be precisely controlled by manipulating their size, shape, and aspect ratio. This review explores the impact of these parameters on the optical tuning of (GNR). By altering the experimental conditions, like the addition of silver ions during the seed-mediated growth process, the aspect ratio of (GNR) may be regulated. The shape is trans from spherical to rod-like structures resulting in noticeable changes in the nanoparticles surface plasmons resonance (SPR) bands. The longitudinal SPR band, associated with electron oscillations along the long axis, exhibits a pronounced red shift into the (NIR) region as the aspect ratio increases. In contrast, the transverse SPR band remains relate unchanged. Using computational methods like the discrete dipole approximation (DDA) allows for analyzing absorption, scattering, and total extinction features of gold (G) nanoparticles. Studies have shown that increasing the aspect ratio enhances the scattering efficiency, indicating a higher scattering quantum yield (QY). These findings highlight the importance of size, shape, and aspect ratio in controlling the optical features of (GNR) providing valuable insights for various uses in nanophotonics and plasmonic-dependent fluorescence in cancer treatment and developing new photonic compound NRs.
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Affiliation(s)
- Dalal Mohamed Alshangiti
- College of Science and Humanities-Jubail, Imam Abdulrahman Bin Faisal University Jubail Saudi Arabia
| | - Mohamed Mohamady Ghobashy
- Radiation Research of Polymer Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Atomic Energy Authority P.O. Box 29, Nasr City Cairo Egypt
| | - Haifa A Alqahtani
- Department of Biology, College of Science, Imam Abdulrahman Bin Faisal University Dammam 31441 Saudi Arabia
| | - Tasneam K El-Damhougy
- Department of Chemistry, Faculty of Science (Girls), Al-Azhar University P.O. Box 11754, Yousef Abbas Str., Nasr City Cairo Egypt
| | - Mohamed Madani
- College of Science and Humanities-Jubail, Imam Abdulrahman Bin Faisal University Jubail Saudi Arabia
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3
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Moon KS, Bae JM, Park YB, Choi EJ, Oh SH. Photobiomodulation-Based Synergic Effects of Pt-Coated TiO 2 Nanotubes and 850 nm Near-Infrared Irradiation on the Osseointegration Enhancement: In Vitro and In Vivo Evaluation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1377. [PMID: 37110962 PMCID: PMC10142112 DOI: 10.3390/nano13081377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/11/2023] [Accepted: 04/12/2023] [Indexed: 06/19/2023]
Abstract
Photobiomodulation (PBM) therapy is known to have the potential to improve bone regeneration after implant surgery. However, the combinatory effect of the nanotextured implant and PBM therapy on osseointegration has not yet been proved. This study evaluated the photobiomodulation-based synergistic effects of Pt-coated titania nanotubes (Pt-TiO2 NT) and 850 nm near-infrared (NIR) light on osteogenic performance in vitro and in vivo. The FE-SEM and the diffuse UV-Vis-NIR spectrophotometer were used to perform the surface characterization. The live-dead, MTT, ALP, and AR assays were tested to perform in vitro tests. The removal torque testing, the 3D-micro CT, and the histological analysis were used to conduct in vivo tests. The live-dead and MTT assay resulted in Pt-TiO2 NTs being biocompatible. The ALP activity and AR assays demonstrated that the combination of Pt-TiO2 NT and NIR irradiation significantly enhanced osteogenic functionality (p < 0.05). The results of in vivo test, employing the removal torque testing, the 3D-micro CT, and histological analysis, showed overall improved outcomes; however, no significant difference was observed between the control and experimental groups (p > 0.05). Therefore, we confirmed the possibility of the combination of Pt-TiO2 NT and NIR light as a promising technology for implant surgery in dentistry.
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Affiliation(s)
- Kyoung-Suk Moon
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan 54538, Republic of Korea; (K.-S.M.)
| | - Ji-Myung Bae
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan 54538, Republic of Korea; (K.-S.M.)
| | - Young-Bum Park
- Department of Prosthodontology, College of Dentistry, Yonsei University, Seoul 03722, Republic of Korea
| | - Eun-Joo Choi
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Wonkwang University, Iksan 54538, Republic of Korea
| | - Seung-Han Oh
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan 54538, Republic of Korea; (K.-S.M.)
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4
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Li S, Wang Z, Shao Y, Zhang K, Mei L, Wang J. In situ detection of fluid media based on a three-dimensional dendritic silver surface-enhanced Raman scattering substrate. NEW J CHEM 2022. [DOI: 10.1039/d1nj05451a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A simple substitution reaction was used to grow 3D dendritic silver structures in microfluidic channels, and a highly active SERS detection platform was formed. The system can realize in situ detection of 10−10 mol L−1 R6G solution.
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Affiliation(s)
- Sha Li
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Zezhou Wang
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Yunpeng Shao
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Kai Zhang
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Linyu Mei
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
| | - Junyuan Wang
- School of Mechanical Engineering, North University of China, Taiyuan, Shanxi 030051, China
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Moon KS, Park YB, Bae JM, Choi EJ, Oh SH. Visible Light-Mediated Sustainable Antibacterial Activity and Osteogenic Functionality of Au and Pt Multi-Coated TiO 2 Nanotubes. MATERIALS 2021; 14:ma14205976. [PMID: 34683564 PMCID: PMC8537070 DOI: 10.3390/ma14205976] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/29/2021] [Accepted: 10/07/2021] [Indexed: 01/15/2023]
Abstract
The visible light reactions of noble metal-based photocatalysts have been increasingly utilized to investigate their antibacterial activities. Furthermore, the photoreactions at various visible light wavelengths for specific combinations of titania nanotubes and noble metal nanoparticles have been found to promote osteogenic functionality. In this investigation, a novel multi-coating combination of noble metals (gold and platinum) on titania nanotubes was assessed using plasmonic photocatalysis and low-level laser therapy at 470 and 600 nm. The results showed that this coating on the nanotubes promoted antibacterial activity and osteogenic functionality. The order in which the gold and platinum coatings were layered onto the titania nanotubes strongly affected the osteogenic performance of the human mesenchymal stem cells. These results have identified a new approach for the development of efficient novel combinations of noble metal nanoparticles and titania nanotubes with visible light responses, sustainable antimicrobial activity, and osteogenic functionality.
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Affiliation(s)
- Kyoung-Suk Moon
- Department of Dental Biomaterials, The Institute of Biomaterial and Implant, School of Dentistry, Wonkwang University, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
| | - Young-Bum Park
- Department of Prosthodontics, School of Dentistry, Yonsei University, Seoul 03722, Korea;
| | - Ji-Myung Bae
- Department of Dental Biomaterials, The Institute of Biomaterial and Implant, School of Dentistry, Wonkwang University, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
| | - Eun-Joo Choi
- Department of Oral and Maxillofacial Surgery, School of Dentistry, Wonkwang University, Iksan 54538, Korea
- Correspondence: (E.-J.C.); (S.-H.O.); Tel.: +82-63-850-6931 (E.-J.C.); +82-63-850-6982 (S.-H.O.)
| | - Seung-Han Oh
- Department of Dental Biomaterials, The Institute of Biomaterial and Implant, School of Dentistry, Wonkwang University, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
- Correspondence: (E.-J.C.); (S.-H.O.); Tel.: +82-63-850-6931 (E.-J.C.); +82-63-850-6982 (S.-H.O.)
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Kim J, Lahlil K, Gacoin T, Kim J. Measuring the order parameter of vertically aligned nanorod assemblies. NANOSCALE 2021; 13:7630-7637. [PMID: 33928956 DOI: 10.1039/d0nr08452b] [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
Vertically aligned nanorod assemblies are of great interest both for fundamental studies of anisotropic physical properties arising from the structures and for the development of functional devices utilizing such anisotropic characteristics. Simultaneous measurement of the homeotropic order parameter (Shomeo) of assemblies in dynamic states can allow further optimization of the assembly process and the device performance. Although many techniques (e.g. birefringence measurement, SAXS analysis, and high-resolution microscopy) have been proposed to characterise Shomeo, these do not yet meet the essential criteria such as for rapid, in situ and non-destructive analyses. Here, we propose a novel approach employing a unique photoluminescence behaviour of lanthanide-doped crystalline nanorods, of which the emission spectrum contains the detailed information on the structure of the assembly. We demonstrate a rapid in situ determination of Shomeo of Eu3+-doped NaYF4 nanorods of which the orientation is controlled under an external electric field. The method does not require the consideration of polarization and can be performed using a conventional fluorescence microscopy setup. This new methodology would provide a more in-depth examination of various assembled nanostructures and the collective dynamics of their building blocks.
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Affiliation(s)
- Jeongmo Kim
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France.
| | - Khalid Lahlil
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France.
| | - Thierry Gacoin
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France.
| | - Jongwook Kim
- Laboratoire de Physique de la Matière Condensée, CNRS, École Polytechnique, Institut Polytechnique de Paris, 91128 Palaiseau, France.
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Li F, Wang K, Deng N, Xu J, Yi M, Xiong B, Zhu J. Self-Assembly of Polymer End-Tethered Gold Nanorods into Two-Dimensional Arrays with Tunable Tilt Structures. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6566-6574. [PMID: 33522228 DOI: 10.1021/acsami.0c22468] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
We demonstrated a facile yet effective strategy for self-assembly of polymer end-tethered gold nanorods (GNRs) into tunable two-dimensional (2D) arrays with the assistance of supramolecules of hydrogen bonded poly(4-vinyl pyridine) (P4VP) and 3-n-pentadecylphenol (PDP). Well-ordered 2D arrays with micrometer size were obtained by rupturing the assembled supramolecular matrix with a selective solvent. The formation of long-range ordered 2D arrays during a drying process was observed via small-angle X-ray scattering. Interestingly, the packing structure of the ordered arrays strongly depends on the molecular weight (Mw) of the polymer ligands and the size of the GNRs. By increasing Mw of the polymer ligands, tilted arrays can be obtained. The average angle between GNRs and the surface normal direction of the layered 2D arrays changes from 0 to 37° with the increase in Mw of the polymer ligands. A mechanism for assembly behavior of dumbbell shapes with a soft shell structure has been proposed. The resulting GNR arrays with different orientations showed anisotropic surface-enhanced Raman scattering (SERS) performance. We showed that the vertically ordered GNR arrays exhibited ∼3 times higher SERS signals than the tilt ordered arrays. The results prove that the polymer end-tethered GNRs can be used as a building block for preparing the tilted 2D arrays with tunable physicochemical properties, which could have a wide range of potential applications in photonics, electronics, plasmonics, etc.
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Affiliation(s)
- Fan Li
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Ke Wang
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Ningxin Deng
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jiangping Xu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Mingdong Yi
- Key Laboratory for Organic Electronics and Information Displays & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing University of Posts & Telecommunications, Nanjing 210023, China
| | - Bijin Xiong
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
| | - Jintao Zhu
- Key Laboratory of Materials Chemistry for Energy Conversion and Storage (HUST) of Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), Wuhan 430074, China
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Moon KS, Choi EJ, Bae JM, Park YB, Oh S. Visible Light-Enhanced Antibacterial and Osteogenic Functionality of Au and Pt Nanoparticles Deposited on TiO 2 Nanotubes. MATERIALS 2020; 13:ma13173721. [PMID: 32842504 PMCID: PMC7503458 DOI: 10.3390/ma13173721] [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: 07/30/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 11/16/2022]
Abstract
This study aimed at evaluating the visible light mediated antimicrobial and osteogenic applications of noble metal, such as gold (Au) and platinum (Pt) coated titania (TiO2) nanotubes (NTs). In this study, the Au and Pt nanoparticles (NPs) were deposited on anodized 100 nm TiO2 NTs by ion plasma sputtering. The Au and Pt NPs were mainly deposited on the top surface layer of TiO2 NTs and showed light absorbance peaks around the 470 and 600 nm visible light region used in this study, as seen from the surface characterization. From the results of antibacterial activity test, Au and Pt NPs that were deposited on TiO2 NTs showed excellent antibacterial activity under 470 nm visible light irradiation due to the plasmonic photocatalysis based on the localized surface plasmon resonance effect of the Au and Pt NPs. In addition, alkaline phosphate activity test and quantitative real-time PCR assay of osteogenic related genes resulted that these NPs promoted the osteogenic functionality of human mesenchymal stem cells (hMSCs) under 600 nm visible light irradiation, because of the synergic effect of the photothermal scattering of noble metal nanoparticles and visible light low-level laser therapy (LLLT). Therefore, the combination of noble metal coated TiO2 NTs and visible light irradiation would be expected to perform permanent antibacterial activity without the need of an antibacterial agent besides promoting osteogenic functionality.
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Affiliation(s)
- Kyoung-Suk Moon
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, Wonkwang University School of Dentistry, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
| | - Eun-Joo Choi
- Department of Oral and Maxillofacial Surgery, Wonkwang University School of Dentistry, Iksan 54538, Korea;
| | - Ji-Myung Bae
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, Wonkwang University School of Dentistry, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
| | - Young-Bum Park
- Department of Prosthodontics, Yonsei University School of Dentistry, Seoul 03722, Korea
- Correspondence: (Y.-B.P.); (S.O.); Tel.: +82-2-2228-3164 (Y.-B.P.); +82-63-850-6982 (S.O.)
| | - Seunghan Oh
- Department of Dental Biomaterials and the Institute of Biomaterial and Implant, Wonkwang University School of Dentistry, Iksan 54538, Korea; (K.-S.M.); (J.-M.B.)
- Correspondence: (Y.-B.P.); (S.O.); Tel.: +82-2-2228-3164 (Y.-B.P.); +82-63-850-6982 (S.O.)
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Inaba T, Takenaka Y, Kawabata Y, Kato T. Effect of the Crystallization Process of Surfactant Bilayer Lamellar Structures on the Elongation of High-Aspect-Ratio Gold Nanorods. J Phys Chem B 2019; 123:4776-4783. [PMID: 31038313 DOI: 10.1021/acs.jpcb.8b10897] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The growth mechanism of an "in-gel synthesis method", that is, the effects of composition and structure of the lamellar gel phase below the Krafft temperature of surfactant solutions on the growth of long gold nanorods, was investigated. We changed the alkyl chain length of surfactant molecules to investigate the effect of surfactant self-assembly on the elongation of gold nanorods systematically; eight mixed solutions of alkyltrimethylammonium bromide (C nTAB; n = 2-16; n = even) with C18TAB were used for investigation. The Krafft temperature, self-assembly of surfactant molecules, and the crystallization process of each mixture were observed by differential scanning calorimetry, wide-angle X-ray scattering, visual inspection, and small-angle X-ray scattering. Gold nanorods were synthesized in these eight surfactant mixtures. These observations demonstrated that when the surfactant Lβ phase sustains for a long time, the space of the water layer is also kept large enough for the seeds to take up Au ions bound to surfactant micelles. In this case, the seeds can form long nanorods between bilayers. We conclude that not only the stability of the lamellar gel phase but also co-existence of Au-ion carriers, that is, surfactant micelles, is essential for the elongation of long gold nanorods.
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Affiliation(s)
- Takamichi Inaba
- Department of Chemistry , Tokyo Metropolitan University , Hachioji , Tokyo 192-0397 , Japan
| | - Yoshiko Takenaka
- Research Institute for Sustainable Chemistry , National Institute of Advanced Industrial Science and Technology (AIST) , Tsukuba , Ibaraki 305-8565 , Japan
| | - Youhei Kawabata
- Department of Chemistry , Tokyo Metropolitan University , Hachioji , Tokyo 192-0397 , Japan
| | - Tadashi Kato
- Department of Chemistry , Tokyo Metropolitan University , Hachioji , Tokyo 192-0397 , Japan
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Moon KS, Park YB, Bae JM, Oh S. Near-infrared laser-mediated drug release and antibacterial activity of gold nanorod-sputtered titania nanotubes. J Tissue Eng 2018; 9:2041731418790315. [PMID: 30083309 PMCID: PMC6071157 DOI: 10.1177/2041731418790315] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Accepted: 07/02/2018] [Indexed: 01/05/2023] Open
Abstract
The infection control of implants is one of the hot issues in the field of
medicine and dentistry. In this study, we prepared gold nanorod–sputtered
titania nanotubes on titanium surface, which is the main component of implant
material, and aimed to estimate the remote-controlled tetracycline release and
resulting antibacterial effects of gold nanorod–sputtered titania nanotubes
using near-infrared laser irradiation. Gold nanorods prepared by ion plasma
sputtering (aspect ratio = 1:3) showed optical properties like those of
chemically synthesized gold nanorods, exhibiting photothermal effects in the
near-infrared region, as demonstrated using field-emission scanning electron
microscopy, transmission electron microscopy, and diffuse
ultraviolet–visible–near-infrared spectrophotometry. In addition, a 2 wt%
tetracycline/polycaprolactone mixture was found to be the most suitable
experimental group to demonstrate the biological compatibilities and
antibacterial activities. The results of antibacterial agar diffusion tests and
near-infrared-mediated tetracycline release tests in vivo confirmed that
remote-controlled tetracycline elution using near-infrared laser irradiation was
highly effective. Therefore, gold nanorod–sputtered titania nanotubes would be
expected to enable the continued use of the photothermal therapy of gold
nanorods and extend the limited use of titania showing photocatalytic activity
only within the ultraviolet-to-near-infrared region.
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Affiliation(s)
- Kyoung-Suk Moon
- Department of Dental Biomaterials and Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan, Republic of Korea
| | - Young-Bum Park
- Department of Prosthodontology, College of Dentistry, Yonsei University, Seoul, Republic of Korea
| | - Ji-Myung Bae
- Department of Dental Biomaterials and Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan, Republic of Korea
| | - Seunghan Oh
- Department of Dental Biomaterials and Institute of Biomaterial and Implant, College of Dentistry, Wonkwang University, Iksan, Republic of Korea
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12
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Zhang S, Pelligra CI, Feng X, Osuji CO. Directed Assembly of Hybrid Nanomaterials and Nanocomposites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705794. [PMID: 29520839 DOI: 10.1002/adma.201705794] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 11/22/2017] [Indexed: 05/19/2023]
Abstract
Hybrid nanomaterials are molecular or colloidal-level combinations of organic and inorganic materials, or otherwise strongly dissimilar materials. They are often, though not exclusively, anisotropic in shape. A canonical example is an inorganic nanorod or nanosheet sheathed in, or decorated by, a polymeric or other organic material, where both the inorganic and organic components are important for the properties of the system. Hybrid nanomaterials and nanocomposites have generated strong interest for a broad range of applications due to their functional properties. Generating macroscopic assemblies of hybrid nanomaterials and nanomaterials in nanocomposites with controlled orientation and placement by directed assembly is important for realizing such applications. Here, a survey of critical issues and themes in directed assembly of hybrid nanomaterials and nanocomposites is provided, highlighting recent efforts in this field with particular emphasis on scalable methods.
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Affiliation(s)
- Shanju Zhang
- Department of Chemistry and Biochemistry, California Polytechnic State University, San Luis Obispo, CA, 93407, USA
| | - Candice I Pelligra
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Xunda Feng
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
| | - Chinedum O Osuji
- Department of Chemical and Environmental Engineering, Yale University, New Haven, CT, 06511, USA
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Cao W, Jiang L, Hu J, Wang A, Li X, Lu Y. Optical Field Enhancement in Au Nanoparticle-Decorated Nanorod Arrays Prepared by Femtosecond Laser and Their Tunable Surface-Enhanced Raman Scattering Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:1297-1305. [PMID: 29256245 DOI: 10.1021/acsami.7b13241] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Various Au nanostructures have been demonstrated to have an enhanced local electric field around them because of surface plasmons. Herein, we propose a novel method for fabricating Au nanoparticle-decorated nanorod (NPDN) arrays through femtosecond laser irradiation combined with Au coating and annealing. The nanorod cavities strongly confined light and produced an enhanced optical field in response to Au nanoparticles (NPs) introduction. The nanogap and diameter of the fabricated Au NPs significantly affected the surface-enhanced Raman scattering (SERS) performance and could be simultaneously tuned with thickness-controllable Au films and substrate morphologies. The resulting Au NPDN substrate was observed to have efficient "hot spots" for tunable SERS applications. We experimentally determined that the enhancement factor of the Au NPDN substrate reached up to 8.3 × 107 at optimal parameters. Moreover, the Au NPDN substrate showed superior chemical stability, with the greatest intensity deviation of 3.2% on exposure to air for 2 months. This work provides a promising method to fabricate tunable plasmonic surfaces for highly sensitive, reproducible, and chemically stable SERS applications.
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Affiliation(s)
- Wei Cao
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology , Beijing 100081, P. R. China
| | - Lan Jiang
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology , Beijing 100081, P. R. China
- Laser Micro/Nano-Fabrication Laboratory, Department of Mechanical Engineering, Tsinghua University , Beijing 100084, P. R. China
| | - Jie Hu
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology , Beijing 100081, P. R. China
| | - Andong Wang
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology , Beijing 100081, P. R. China
| | - Xiaowei Li
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology , Beijing 100081, P. R. China
| | - Yongfeng Lu
- Department of Electrical and Computer Engineering, University of Nebraska-Lincoln , Lincoln, Nebraska 68588-0511, United States
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Muench F, Felix EM, Rauber M, Schaefer S, Antoni M, Kunz U, Kleebe HJ, Trautmann C, Ensinger W. Electrodeposition and electroless plating of hierarchical metal superstructures composed of 1D nano- and microscale building blocks. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.03.188] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Zhang S, Tian X, Yin J, Liu Y, Dong Z, Sun JL, Ma W. Rapid, controllable growth of silver nanostructured surface-enhanced Raman scattering substrates for red blood cell detection. Sci Rep 2016; 6:24503. [PMID: 27094084 PMCID: PMC4837339 DOI: 10.1038/srep24503] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 03/30/2016] [Indexed: 12/05/2022] Open
Abstract
Silver nanostructured films suitable for use as surface-enhanced Raman scattering (SERS) substrates are prepared in just 2 hours by the solid-state ionics method. By changing the intensity of the external direct current, we can readily control the surface morphology and growth rate of the silver nanostructured films. A detailed investigation of the surface enhancement of the silver nanostructured films using Rhodamine 6G (R6G) as a molecular probe revealed that the enhancement factor of the films was up to 1011. We used the silver nanostructured films as substrates in SERS detection of human red blood cells (RBCs). The SERS spectra of RBCs on the silver nanostructured film could be clearly detected at a laser power of just 0.05 mW. Comparison of the SERS spectra of RBCs obtained from younger and older donors showed that the SERS spectra depended on donor age. A greater proportion of the haemoglobin in the RBCs of older donors was in the deoxygenated state than that of the younger donors. This implies that haemoglobin of older people has lower oxygen-carrying capacity than that of younger people. Overall, the fabricated silver substrates show promise in biomedical SERS spectral detection.
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Affiliation(s)
- Shu Zhang
- College of Science, Huazhong Agricultural University, 430070, Wuhan, China.,State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China
| | - Xueli Tian
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China
| | - Jun Yin
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China
| | - Yu Liu
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China
| | - Zhanmin Dong
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China
| | - Jia-Lin Sun
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China.,Collaborative Innovation Center of Quantum Matter, Beijing, China
| | - Wanyun Ma
- State Key Laboratory of Low-Dimensional Quantum Physics, Department of Physics, Tsinghua University, 100084, Beijing, China.,Collaborative Innovation Center of Quantum Matter, Beijing, China
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16
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Chang K, Chung H. Simple electrochemical synthesis of an Au–Ag–Cu trimetallic nanodendrite and its use as a SERS substrate. RSC Adv 2016. [DOI: 10.1039/c6ra01670g] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An Au–Ag–Cu trimetallic nanodendrite was constructed by simple electrochemical methods and was evaluated as a surface enhanced Raman scattering (SERS) substrate.
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Affiliation(s)
- Kyeol Chang
- Analytical Spectroscopy Lab
- Department of Chemistry and Institute for Materials Design
- Hanyang University
- Seoul 133-791
- Korea
| | - Hoeil Chung
- Analytical Spectroscopy Lab
- Department of Chemistry and Institute for Materials Design
- Hanyang University
- Seoul 133-791
- Korea
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17
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Chen LY, Yang KH, Chen HC, Liu YC, Chen CH, Chen QY. Innovative fabrication of a Au nanoparticle-decorated SiO2 mask and its activity on surface-enhanced Raman scattering. Analyst 2015; 139:1929-37. [PMID: 24575422 DOI: 10.1039/c3an02089d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Surface-enhanced Raman scattering (SERS) utilizing the well-defined localized surface plasmon resonance (LSPR) of Ag and Au nanoparticles (NPs) under resonant irradiation has emerged as a promising spectroscopy technique for providing vibrational information on trace molecules. The Raman scattering intensity from molecules close to the surface of these finely divided metals can be significantly enhanced by a factor of more than 10(6). In addition to the high sensitivity, the reproducibility of the SERS signal is also an important parameter for its reliable application. In this work, we report on the innovative and facile fabrication of a Au NP-decorated SiO2 mask coated on indium tin oxide (ITO) glass as a SERS array substrate. First, a highly ordered porous SiO2 mask with pore sizes of 350 nm in diameter and wall thickness of 60 nm was deposited on ITO glass by using spin coating. Then, Au NPs were controllably decorated into the pores of the conductive ITO glass-bottomed SiO2 mask by using sonoelectrochemical deposition-dissolution cycling (SEDDC). Experimental results indicate that the SERS effect of Rhodamine 6G (R6G) observed on this developed substrate increases with an increase in the deposition time of Au NPs in SEDDC. The corresponding optimal enhancement factor (EF) that is obtained is ca. 6.5 × 10(7). Significantly, this system achieves an optimal reproducibility under a medium-length deposition time of Au NPs in SEDDC with a relative standard deviation (RSD) of 12% for measurements of five spots on different areas. The low RSD of the SERS signal and the large EF suggest that the developed array system can serve as an excellent spectroscopy platform for practical applications in analytical chemistry.
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Affiliation(s)
- Liang-Yih Chen
- Department of Chemical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 10607, Taiwan
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18
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Chen J, Feng S, Gao F, Grant E, Xu J, Wang S, Huang Q, Lu X. Fabrication of SERS-Active Substrates using Silver Nanofilm-Coated Porous Anodic Aluminum Oxide for Detection of Antibiotics. J Food Sci 2015; 80:N834-40. [DOI: 10.1111/1750-3841.12825] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 01/28/2015] [Indexed: 11/30/2022]
Affiliation(s)
- Jing Chen
- MOE Key Laboratory of Weak Light Nonlinear Photonics, Tianjin Key Laboratory of Photonics and Technology of Information Science, School of Physics; Nankai Univ; Tianjin 300071 China
- Food, Nutrition and Health Program, Faculty of Land and Food Systems; The Univ. of British Columbia; Vancouver V6T 1Z4 Canada
| | - Shaolong Feng
- Food, Nutrition and Health Program, Faculty of Land and Food Systems; The Univ. of British Columbia; Vancouver V6T 1Z4 Canada
| | - Fang Gao
- Food, Nutrition and Health Program, Faculty of Land and Food Systems; The Univ. of British Columbia; Vancouver V6T 1Z4 Canada
- Dept. of Chemistry; The Univ. of British Columbia; Vancouver V6T 1Z1 Canada
| | - Edward Grant
- Dept. of Chemistry; The Univ. of British Columbia; Vancouver V6T 1Z1 Canada
| | - Jie Xu
- Dept. of Mechanical and Industrial Engineering; Univ. of Illinois at Chicago; Chicago IL 60607 U.S.A
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China; Tianjin Univ. of Science and Technology; Tianjin 300457 China
| | - Qian Huang
- Inst. of Photoelectronics; Nankai Univ; Tianjin 300071 China
| | - Xiaonan Lu
- Food, Nutrition and Health Program, Faculty of Land and Food Systems; The Univ. of British Columbia; Vancouver V6T 1Z4 Canada
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19
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Highly uniform and reproducible surface enhanced Raman scattering on air-stable metallic glassy nanowire array. Sci Rep 2014; 4:5835. [PMID: 25060646 PMCID: PMC5376157 DOI: 10.1038/srep05835] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Accepted: 07/08/2014] [Indexed: 11/18/2022] Open
Abstract
Preparation of surface enhanced Raman scattering (SERS) nanostructures with both high sensitivity as well as high reproducibility has always been difficult and costly for routine SERS detection. Here we demonstrate air-stable metallic glassy nanowire arrays (MGNWAs), which were prepared by a cheap and rapid die nanoimprinting technique, could exhibit high SERS enhancement factor (EF) as well as excellent reproducibility. It shows that Pd40.5Ni40.5P19 MGNWA with nanowires of 55 nm in diameter and 100 nm in pitch possesses high SERS activity with an EF of 1.1 × 105, which is 1–3 orders of magnitudes higher than that of the reported crystal Ni-based nanostructures, and an excellent reproducibility with a relative standard deviation of 9.60% measured by 121 points over an area of 100 μm*100 μm. This method offers an easy, rapid, and low-cost way to prepare highly sensitive and reproducible SERS substrates and makes the SERS more practicable.
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20
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New sample preparation procedure for effective improvement on surface-enhanced Raman scattering effects. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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21
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Chen L, Jiang D, Liu X, Qiu G. ZnGa2O4Nanorod Arrays Decorated with Ag Nanoparticles as Surface-Enhanced Raman-Scattering Substrates for Melamine Detection. Chemphyschem 2014; 15:1624-31. [DOI: 10.1002/cphc.201400050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2014] [Indexed: 11/08/2022]
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22
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Wang J, Zhou F, Duan G, Li Y, Liu G, Su F, Cai W. A controlled Ag–Au bimetallic nanoshelled microsphere array and its improved surface-enhanced Raman scattering effect. RSC Adv 2014. [DOI: 10.1039/c3ra47882c] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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23
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Wei W, Chen K, Ge G. Strongly coupled nanorod vertical arrays for plasmonic sensing. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2013; 25:3863-3868. [PMID: 24048972 DOI: 10.1002/adma.201301181] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2013] [Revised: 04/15/2013] [Indexed: 06/02/2023]
Abstract
Due to their unique optical properties and facile processability, nanorods of noble metals are promising for highly effective nanoscale optical devices. Specifically, the local electric field enhancement brought about by plasmon coupling between nanorods in an array configuration shows great potential for optical sensing. Recent results demonstrate that vertical arrays of noble metal nanorods, used as substrates for surface enhanced Raman scattering, can achieve the sensitivity levels required for presymptomatic detection. Meanwhile, advancements in controlled fabrication methods can provide nanorod arrays with well-defined structures and properties, which lays the foundation for highly sensitive and reliable sensing. This research news focuses on this rapidly developing field by introducing the mechanisms, characteristics, and preparation methods of nanorod arrays used in plasmonic sensing, along with a perspective for future development and technical requirements.
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Affiliation(s)
- Wenbo Wei
- National Center for Nanoscience and Technology, Beijing 100190, PR China
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24
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Feng JJ, Lv ZY, Qin SF, Li AQ, Fei Y, Wang AJ. N-methylimidazole-assisted electrodeposition of Au porous textile-like sheet arrays and its application to electrocatalysis. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.04.008] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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25
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Dinda S, Yap FL, Suresh V, Gupta RK, Das D, Krishnamoorthy S. Quantitative Detection with Surface Enhanced Raman Scattering (SERS) Using Self-Assembled Gold Nanoparticle Cluster Arrays. Aust J Chem 2013. [DOI: 10.1071/ch13222] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
We analysed sensitivity of high-density arrays of self-assembled gold nanoparticle clusters towards trace analyte detection and quantitative determination by surface enhanced Raman spectroscopy (SERS) employing an aromatic thiol as probe molecule. Periodic nanoscale arrays of gold nanoparticle clusters consisting of an average of 18 nanoparticles per cluster, and exhibiting mean inter-particle and inter-cluster separations below 10 nm were prepared using electrostatic self-assembly on block copolymer templates. The concentration dependent scaling of SERS intensities and the lowest detection limits on the cluster arrays on silicon substrate was probed using 1-naphthalenethiol (NT) as test molecule. The substrates show a detection limit of 10 nM along with high sensitivity to changes in NT concentration, which we attribute to high density of hot-spots uniformly organised across the surface. The capability for facile realisation of such arrays without a clean room environment or expensive tools makes the approach suitable for adoption for economic and high-performing SERS sensors.
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26
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Chang CC, Yang KH, Liu YC, Hsu TC, Mai FD. Surface-enhanced Raman scattering-active Au/SiO2 nanocomposites prepared using sonoelectrochemical pulse deposition methods. ACS APPLIED MATERIALS & INTERFACES 2012; 4:4700-4707. [PMID: 22934654 DOI: 10.1021/am3017366] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
For improving signals, reproducibility, and stabilities of surface-enhanced Raman scattering (SERS), numerous technologies have recently been reported in the literature. However, the fabrication processes are usually complicated. It is well-known that nanoparticles (NPs) of Au and SiO(2) are SERS active and inactive materials, respectively. In this work, a simple synthesis route based on sonoelectrochemical pulse deposition (SEPD) methods has been developed to synthesize effectively SERS-active Au/SiO(2) nanocomposites (NCs) with an enhancement factor of 5.4 × 10(8). Experimental results indicate that pH value of solution and addition of SiO(2) NPs before and after oxidation-reduction cycles (ORCs) can significantly influence the corresponding SERS activities. Encouragingly, the SERS of Rhodamine 6G (R6G) adsorbed on the developed Au/SiO(2) NCs exhibits a higher intensity by more than 1 order of magnitude, as compared with that of R6G adsorbed on Au NPs synthesized using the same method. Moreover, this improved SERS activity is successfully verified from the mechanisms of electromagnetic (EM) and chemical (CHEM) enhancements.
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Affiliation(s)
- Chun-Chao Chang
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, No. 250, Wu-Hsing St., Taipei 11031, Taiwan
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27
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Vigderman L, Khanal BP, Zubarev ER. Functional gold nanorods: synthesis, self-assembly, and sensing applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:4811-41, 5014. [PMID: 22740090 DOI: 10.1002/adma.201201690] [Citation(s) in RCA: 445] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2012] [Indexed: 05/19/2023]
Abstract
Gold nanorods have received much attention due to their unique optical and electronic properties which are dependent on their shape, size, and aspect ratio. This article covers in detail the synthesis, functionalization, self-assembly, and sensing applications of gold nanorods. The synthesis of three major types of rods is discussed: single-crystalline and pentahedrally-twinned rods, which are synthesized by wet chemistry methods, and polycrystalline rods, which are synthesized by templated deposition. Functionalization of these rods is usually necessary for their applications, but can often be problematic due to their surfactant coating. Thus, general strategies are provided for the covalent and noncovalent functionalization of gold nanorods. The review will then examine the significant progress that has been made in controllable assembly of nanorods into various arrangements. This assembly can have a large effect on measurable properties of rods, making it particularly applicable towards sensing of a variety of analytes. Other types of sensing not dependent on nanorod assembly, such as refractive-index based sensing, are also discussed.
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Affiliation(s)
- Leonid Vigderman
- Department of Chemistry, Rice University, 6100 Main Street, Houston, TX 77005, USA
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28
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Meng F, Wang L, Zhu F, Li S, Yue Q, Li H, Liu J, Zhai Y, Jia J. Replicating hexagonal metal nanorod from ZnO nanorod. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Hore MJA, Composto RJ. Using Miscible Polymer Blends To Control Depletion–Attraction Forces between Au Nanorods in Nanocomposite Films. Macromolecules 2012. [DOI: 10.1021/ma300992e] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael J. A. Hore
- Department of Materials
Science and Engineering and
the Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania
19104, United States
| | - Russell J. Composto
- Department of Materials
Science and Engineering and
the Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, Pennsylvania
19104, United States
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30
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Yang Y, Li ZY, Yamaguchi K, Tanemura M, Huang Z, Jiang D, Chen Y, Zhou F, Nogami M. Controlled fabrication of silver nanoneedles array for SERS and their application in rapid detection of narcotics. NANOSCALE 2012; 4:2663-9. [PMID: 22410821 DOI: 10.1039/c2nr12110g] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Novel surface-enhanced Raman scattering (SERS) substrates with high SERS-activity are ideal for novel SERS sensors, detectors to detect illicitly sold narcotics and explosives. The key to the wider application of SERS technique is to develop plasmon resonant structure with novel geometries to enhance Raman signals and to control the periodic ordering of these structures over a large area to obtain reproducible Raman enhancement. In this work, a simple Ar(+)-ion sputtering route has been developed to fabricate silver nanoneedles arrays on silicon substrates for SERS-active substrates to detect trace-level illicitly sold narcotics. These silver nanoneedles possess a very sharp apex with an apex diameter of 15 nm and an apex angle of 20°. The SERS enhancement factor of greater than 10(10) was reproducibly achieved by the well-aligned nanoneedles arrays. Furthermore, ketamine hydrochloride molecules, one kind of illicitly sold narcotics, can be detected down to 27 ppb by using our SERS substrate within 3 s, indicating the sensitivity of our SERS substrates for trace amounts of narcotics and that SERS technology can become an important analytical technique in forensic laboratories because it can provide a rapid and nondestructive method for trace detection.
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Affiliation(s)
- Yong Yang
- State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P. R. China.
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31
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Li X, Hu H, Li D, Shen Z, Xiong Q, Li S, Fan HJ. Ordered array of gold semishells on TiO2 spheres: an ultrasensitive and recyclable SERS substrate. ACS APPLIED MATERIALS & INTERFACES 2012; 4:2180-5. [PMID: 22471731 DOI: 10.1021/am300189n] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Ordered array of Au semishells on TiO(2) spheres with controlled size are prepared by combining the nanosphere self-assembly and atomic layer deposition (ALD). This ordered 2-D structure with designed array of metal nanogaps can be used as an ultrasensitive surface-enhanced Raman scattering (SERS) substrate with high reproducibility and stability. More importantly, the SERS substrates are recyclable, as enabled by their self-cleaning function due to the TiO(2) photocatalytic degradation of the target molecules. The high SERS sensitivity and recyclability are demonstrated by the detection of Rhodamine 6G (R6G) and brilliant cresyl blue (BCB) molecules. As both the nanosphere lithography and ALD are scalable processes, such 2-D ordered substrates may find applications in chemical sensing.
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Affiliation(s)
- Xianglin Li
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
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32
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Kuo WS, Chang YT, Cho KC, Chiu KC, Lien CH, Yeh CS, Chen SJ. Gold nanomaterials conjugated with indocyanine green for dual-modality photodynamic and photothermal therapy. Biomaterials 2012; 33:3270-8. [DOI: 10.1016/j.biomaterials.2012.01.035] [Citation(s) in RCA: 211] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 01/14/2012] [Indexed: 11/25/2022]
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33
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Lu G, Li H, Wu S, Chen P, Zhang H. High-density metallic nanogaps fabricated on solid substrates used for surface enhanced Raman scattering. NANOSCALE 2012; 4:860-863. [PMID: 22159183 DOI: 10.1039/c1nr10997a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The Raman signal of adsorbed molecules can be significantly enhanced by utilizing metallic structures with high-density Raman hot spots used as surface enhanced Raman scattering (SERS) substrates. In this work, we develop a simple, convenient and tunable method to fabricate high-density Ag or Au nanogaps on Si wafers. These nanogaps can serve as Raman hot spots, leading to dramatic enhancement of the Raman signal. The high-density nanogaps can be formed by repeating the electroless deposition of Ag NPs (or Au NPs) and coating of p-aminothiophenol (PATP, a Raman probe) on the deposited Ag NPs (or Au NPs) through the self-assembly process. After removal of PATP by O(2) plasma, the as-fabricated SERS substrate can be reused for the detection of other molecules.
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Affiliation(s)
- Gang Lu
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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34
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Chen X, Wen Y, Wang N, Gu K, Yang H. Uniform gold nanoarray formed by controlled IP6 micelles for chemical mapping. NANOTECHNOLOGY 2011; 22:205603. [PMID: 21444953 DOI: 10.1088/0957-4484/22/20/205603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A uniform Au nanoarray is successfully formed at an indium tin oxide (ITO) glass surface modified with well-distributed inositol hexakisphosphoric (IP(6)) micelle layers by controlling the pH of the medium at 10. When Rhodamine 6G (R6G) and 2-mercaptopyridine (2-MPy) are used as the Raman probes, the uniform Au nanoarray presents a sound surface enhanced Raman scattering (SERS) efficiency and a reproducible Raman signal in two dimensions. The relative standard deviation (RSD) of Raman intensities of R6G or 2-MPy on the uniform Au nanoarray recorded by point to point is less than 12%, which is beneficial to its application for chemical mapping or imaging. A case of Raman point-mapping for onion epidermis is demonstrated in the present work. A uniform IP(6)-Au nanoarray might be mass-produced by this protocol.
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Affiliation(s)
- Xiyao Chen
- Department of Chemistry, Shanghai Normal University, Shanghai, People's Republic of China
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35
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Patete JM, Peng X, Serafin JM, Wong SS. Quantitatively probing the means of controlling nanoparticle assembly on surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2011; 27:5792-5805. [PMID: 21491942 DOI: 10.1021/la105082a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
As a means of developing a simple, cost-effective, and reliable method for probing nanoparticle behavior, we have used atomic force microscopy to gain a quantitative 3D visual representation of the deposition patterns of citrate-capped Au nanoparticles on a substrate as a function of (a) sample preparation, (b) the choice of substrate, (c) the dispersion solvent, and (d) the number of loading steps. Specifically, we have found that all four parameters can be independently controlled and manipulated in order to alter the resulting pattern and quantity of as-deposited nanoparticles. From these data, the sample preparation technique appears to influence deposition patterns most broadly, and the dispersion solvent is the most convenient parameter to use in tuning the quantity of nanoparticles deposited onto the surface under spin-coating conditions. Indeed, we have quantitatively measured the effect of surface coverage for both mica and silicon substrates under preparation techniques associated with (i) evaporation under ambient air, (ii) heat treatment, and (iii) spin-coating preparation conditions. In addition, we have observed a decrease in nanoparticle adhesion to a substrate when the ethylene glycol content of the colloidal dispersion solvent is increased, which had the effect of decreasing interparticle-substrate interactions. Finally, we have shown that substrates prepared by these diverse techniques have potential applicability in surface-enhanced Raman spectroscopy.
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Affiliation(s)
- Jonathan M Patete
- Department of Chemistry, State University of New York at Stony Brook, Stony Brook, New York 11794-3400, United States
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36
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Lin YY, Liao JD, Ju YH, Chang CW, Shiau AL. Focused ion beam-fabricated Au micro/nanostructures used as a surface enhanced Raman scattering-active substrate for trace detection of molecules and influenza virus. NANOTECHNOLOGY 2011; 22:185308. [PMID: 21427472 DOI: 10.1088/0957-4484/22/18/185308] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
The focused ion beam (FIB) technique was used to precisely fabricate patterned Au micro/nanostructures (fibAu). The effects of surface enhanced Raman scattering (SERS) on the fibAu samples were investigated by adjusting the geometrical, dimensional, and spacing factors. The SERS mechanism was evaluated using low-concentration rhodamine 6G (R6G) molecules, physically adsorbed or suspended on/within the micro/nanostructures. The results indicated that for detecting R6G molecules, hexagon-like micro/nanostructures induced a higher electromagnetic mechanism (EM) due to the availability of multiple edges and small curvature. By decreasing the dimensions from 300 to 150 nm, the laser-focused area contained an increasing number of micro/nanostructures and therefore intensified the excitation of SERS signals. Moreover, with an optimized geometry and dimensions of the micro/nanostructures, the relative intensity/surface area value reached a maximum as the spacing was 22 nm. An exponential decrease was found as the spacing was increased, which most probably resulted from the loss of EM. The spacing between the micro/nanostructures upon the fibAu was consequently regarded as the dominant factor for the detection of R6G molecules. By taking an optimized fibAu to detect low-concentration influenza virus, the amino acids from the outermost surface of the virus can be well distinguished through the SERS mechanism.
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Affiliation(s)
- Ying-Yi Lin
- Department of Materials Science and Engineering, National Cheng Kung University, Tainan 701, Taiwan
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Lien CH, Kuo WS, Cho KC, Lin CY, Su YD, Huang LLH, Campagnola PJ, Dong CY, Chen SJ. Fabrication of gold nanorods-doped, bovine serum albumin microstructures via multiphoton excited photochemistry. OPTICS EXPRESS 2011; 19:6260-6268. [PMID: 21451651 DOI: 10.1364/oe.19.006260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In this study, three-dimensional (3D) crosslinked bovine serum albumin (BSA) microstructures containing gold nanorods (AuNRs) were fabricated via multiphoton excited photochemistry using Rose Bengal (RB) as the photoactivator. To retain AuNRs in the 3D crosslinked BSA microstructures, the laser wavelength was chosen for two-photon RB absorption for improved two-photon crosslinking efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. Furthermore, with two-photon excitation of RB via AuNRs plasmonics, the laser power can be reduced by about 30%. As a result, 3D BSA microstructures containing AuNRs can be successfully fabricated. The AuNRs-doped BSA microstructures can be applied in biomedical scaffolds with plasmonic properties such as two-photon luminescence imaging and photothermal therapy.
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Affiliation(s)
- Chi-Hsiang Lien
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
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38
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Qin Y, Pan A, Liu L, Moutanabbir O, Yang RB, Knez M. Atomic layer deposition assisted template approach for electrochemical synthesis of Au crescent-shaped half-nanotubes. ACS NANO 2011; 5:788-94. [PMID: 21210698 DOI: 10.1021/nn102879s] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
This paper reports on a novel and versatile method to synthesize sharp-edged crescent-shaped half-nanotubes (HNTs) using a flexible template-based nanofabrication method assisted by atomic layer deposition. This was achieved by electrodeposition inside crescent-shaped nanochannels created by a controlled removal of a sacrificial layer, which was deposited by atomic layer deposition onto the pore walls of an anodic aluminum oxide template. This method provides a high degree of freedom in the manipulation of the morphological properties of HNTs such as the edge sharpness, opening, gap size, and the wall thickness. Initial optical investigations of the HNTs reveal distinct surface plasmon resonance by dark field scattering spectra and surface enhanced Raman spectrum.
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Affiliation(s)
- Yong Qin
- Max Planck Institute of Microstructure Physics, Halle 06120, Germany.
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39
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Wang J, Duan G, Liu G, Li Y, Dai Z, Zhang H, Cai W. Gold quasi rod-shaped nanoparticle-built hierarchically micro/nanostructured pore array via clean electrodeposition on a colloidal monolayer and its structurally enhanced SERS performance. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10773a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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40
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Plowman BJ, Bhargava SK, O'Mullane AP. Electrochemical fabrication of metallic nanostructured electrodes for electroanalytical applications. Analyst 2011; 136:5107-19. [DOI: 10.1039/c1an15657h] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Mai FD, Yang KH, Liu YC, Hsu TC, Juang MY. New electrochemical method to deposit surface-enhanced Raman scattering-active silver nanoparticles on metal substrates. RSC Adv 2011. [DOI: 10.1039/c1ra00575h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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42
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Mai FD, Hsu TC, Liu YC, Yang KH, Chen BC. A new strategy to prepare surface-enhanced Raman scattering-active substrates by electrochemical pulse deposition of gold nanoparticles. Chem Commun (Camb) 2011; 47:2958-60. [DOI: 10.1039/c0cc05262k] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Kuo WS, Lien CH, Cho KC, Chang CY, Lin CY, Huang LLH, Campagnola PJ, Dong CY, Chen SJ. Multiphoton fabrication of freeform polymer microstructures with gold nanorods. OPTICS EXPRESS 2010; 18:27550-9. [PMID: 21197029 DOI: 10.1364/oe.18.027550] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
In this study, three-dimensional (3D) polyacrylamide microstructures containing gold nanorods (AuNRs) were fabricated by two-photon polymerization (TPP) using Rose Bengal (RB) as the photoinitiator. To retain AuNRs in the 3D polymer microstructures, the laser wavelength was chosen for two-photon RB absorption for improved TPP efficiency, but not for enhancing the longitudinal plasmon resonance of AuNRs which may result in photothermal damage of AuNRs. After TPP processing, the laser wavelength was tuned for the longitudinal plasmon resonance and the laser power was increased to beyond the damage threshold of the AuNRs for reshaping the AuNRs into gold nanospheres. As a result, AuNRs in designated positions of the fabricated 3D microstructures can be achieved. Two-photon luminescence from the doped AuNRs can also act as contrast agent for the visualization of 3D polymer microstructures.
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Affiliation(s)
- Wen-Shuo Kuo
- Department of Engineering Science, National Cheng Kung University, Tainan, Taiwan
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44
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Kuroda Y, Kuroda K. Morphosynthesis of Nanostructured Gold Crystals by Utilizing Interstices in Periodically Arranged Silica Nanoparticles as a Flexible Reaction Field. Angew Chem Int Ed Engl 2010; 49:6993-7. [DOI: 10.1002/anie.201002430] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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45
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Kuroda Y, Kuroda K. Morphosynthesis of Nanostructured Gold Crystals by Utilizing Interstices in Periodically Arranged Silica Nanoparticles as a Flexible Reaction Field. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002430] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Gold Nanorods in Photodynamic Therapy, as Hyperthermia Agents, and in Near-Infrared Optical Imaging. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906927] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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47
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Kuo WS, Chang CN, Chang YT, Yang MH, Chien YH, Chen SJ, Yeh CS. Gold Nanorods in Photodynamic Therapy, as Hyperthermia Agents, and in Near-Infrared Optical Imaging. Angew Chem Int Ed Engl 2010; 49:2711-5. [DOI: 10.1002/anie.200906927] [Citation(s) in RCA: 264] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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48
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Sicard C, Brayner R, Margueritat J, Hémadi M, Couté A, Yéprémian C, Djediat C, Aubard J, Fiévet F, Livage J, Coradin T. Nano-gold biosynthesis by silica-encapsulated micro-algae: a “living” bio-hybrid material. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/c0jm01735c] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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