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Huang WC, Lin CC, Chiu TW, Chen SY. 3D Gradient and Linearly Aligned Magnetic Microcapsules in Nerve Guidance Conduits with Remotely Spatiotemporally Controlled Release to Enhance Peripheral Nerve Repair. ACS APPLIED MATERIALS & INTERFACES 2022; 14:46188-46200. [PMID: 36198117 DOI: 10.1021/acsami.2c11362] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Although numerous strategies have been implemented to develop nerve guidance conduits (NGCs) to treat peripheral nerve injury (PNI), functionalization of an NGC to make it remotely controllable for providing spatiotemporal modulation on in situ nerve tissues remains a challenge. In this study, a gelatin/silk (GS) hydrogel was used to develop an NGC based on its self-owned reversible thermoresponsive sol-to-gel phase transformation ability that permitted rapid three-dimensional (3D) micropatterning of the incorporated nerve growth factor (NGF)-loaded magnetic poly(lactic-co-glycolic acid) (PLGA) microcapsules (called NGF@MPs) via multiple magnetic guidance. The thermally controllable viscosity of GS enabled the rapid formation of a 3D gradient and linearly aligned distribution of NGF@MPs, leading to magnetically controlled 3D gradient release of NGF to enhance topographical nerve guidance and wound healing in PNIs. Particularly, the as-formed micropatterned hydrogel, called NGF@MPs-GS, showed corrugation topography with a pattern height H of 15 μm, which resulted in the linear axon alignment of more than 90% of cells. In addition, by an external magnetic field, spatiotemporal controllability of NGF release was obtained and permitted neurite elongation that was almost 2-fold longer than that in the group with external addition of NGF. Finally, an NGC prototype was fabricated and implanted into the injured sciatic nerve. The patterned implant, assisted by magnetic stimulation, demonstrated accelerated restoration of motor function within 14 days after implantation. It further contributed to the enhancement of axon outgrowth and remyelination after 28 days. This NGC, with controllable mechanical, biochemical, and topographical cues, is a promising platform for the enhancement of nerve regeneration.
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Affiliation(s)
- Wei-Chen Huang
- Department of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - Chun-Chang Lin
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - Tzai-Wen Chiu
- Department of Biological Science and Technology, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Yang Ming Chiao Tung University, No. 1001 Ta-Hsueh Road, Hsinchu300093, Taiwan
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu300044, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, No.100, Shih-Chuan 1st Road, Kaohsiung80708, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, No. 91, Hsueh-Shih Road, Taichung40402, Taiwan
- Medical Device Innovation and Translation Center, National Yang Ming Chiao Tung University, Yangming Campus, No. 155, Section 2, Linong Street, Beitou District, Taipei112304, Taiwan
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2
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Yue H, Chang X, Liu J, Zhou D, Li L. Wheel-like Magnetic-Driven Microswarm with a Band-Aid Imitation for Patching Up Microscale Intestinal Perforation. ACS APPLIED MATERIALS & INTERFACES 2022; 14:8743-8752. [PMID: 35133797 DOI: 10.1021/acsami.1c21352] [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] [Indexed: 06/14/2023]
Abstract
Microscale intestinal perforation can cause considerable mortality and is very difficult to treat using conventional methods owing to the numerous challenges associated with microscale operations, which require the development of new body-friendly and effective treatment methods. Swarming micro- and nanomotors have shown great potential in biomedical applications in complex and hard-to-reach environments. Herein, we present a wheel-like magnetic-driven microswarm (WLM) with a band-aid imitation to patch microscale intestinal perforations by pasting on the perforation point in mucus-filled environments. A method called "packing under rolling" was applied to make the formed microswarms denser and rounder. Microswarms with variable aspect ratios can be fabricated by tuning the frequency and strength of the external magnetic field. Actuation and navigation in a confined complex environment, locomotion on three-dimensional surfaces, and multiple switchable motion modes have been realized by combining AC and DC magnetic fields. Moreover, we demonstrated WLM controllable navigation, movement, and microscale perforation patching in the chicken intestines ex vivo. The proposed strategy will contribute to the treatment of microscale intestinal perforation and may be applicable to novel, precise topical medication and microsurgery.
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Affiliation(s)
- Honger Yue
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China
| | - Xiaocong Chang
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing (Harbin Institute of Technology), Ministry of Education, Harbin 150001, China
| | - Junmin Liu
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China
| | - Dekai Zhou
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing (Harbin Institute of Technology), Ministry of Education, Harbin 150001, China
| | - Longqiu Li
- State Key Laboratory of Robotics and Systems, Harbin Institute of Technology, Harbin, Heilongjiang 150001, P. R. China
- Key Laboratory of Micro-Systems and Micro-Structures Manufacturing (Harbin Institute of Technology), Ministry of Education, Harbin 150001, China
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3
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Jeong KJ, Lee DK, Tran VT, Wang C, Lv J, Park J, Tang Z, Lee J. Helical Magnetic Field-Induced Real-Time Plasmonic Chirality Modulation. ACS NANO 2020; 14:7152-7160. [PMID: 32298072 DOI: 10.1021/acsnano.0c02026] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The astrophysical phenomenon of mimetic helical magnetic field (hB)-assisted self-assembly is herein introduced to build helical superstructures that display chiroptical properties. As a building block, magnetoplasmonic (MagPlas) Ag@Fe3O4 core-shell nanoparticles are used to guide plasmonic Ag nanoparticles onto a helical magnetic flux. The chirality of the assembled helical structures and tailored circular dichroism are successfully tuned in real time, and the handedness of the assembled structures is dynamically switched by the hB at the millisecond level, which is at least 6000-fold faster than other template-assisted methods. The peak position of circular dichroism can be reconfigured by altering the plasmonic resonance or coupling by controlling the size of the Ag core and magnetic flux density. The hB-induced chirality modulation represents a method to control the polarization state of light at the nexus of plasmonics, magnetic self-assembly, colloidal science, liquid crystals, and chirality. It presents active and dynamic chiral assemblies of magnetoplasmonic nanomaterials, enabling further practical applications in optical devices.
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Affiliation(s)
- Ki-Jae Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Dong Kyu Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Van Tan Tran
- Research Institute of Materials Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam
| | - Caifeng Wang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46279, Republic of Korea
| | - Jiawei Lv
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jinhae Park
- Department of Mathematics, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - Zhiyong Tang
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jaebeom Lee
- Department of Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
- Department of Chemical Enginnering and Applied Chemistry, Chungnam National University, Daejeon, 34134, Republic of Korea
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4
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Tran VT, Lee DK, Kim J, Jeong KJ, Kim CS, Lee J. Magnetic Layer-by-Layer Assembly: From Linear Plasmonic Polymers to Oligomers. ACS APPLIED MATERIALS & INTERFACES 2020; 12:16584-16591. [PMID: 32181632 DOI: 10.1021/acsami.9b22684] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
One-dimensional nanostructures with controllable aspect ratios are essential for a wide range of applications. An approach for magnetic superparticle (SP) assembly over large areas (55 mm × 25 mm) is introduced via co-assistance of electrostatic and magnetic fields, so-called magnetic layer-by-layer assembly, on an arbitrary hydrophilic substrate within minutes. The SP structures [diameter (d) = 120-350 nm] of Fe3O4 or Ag@Fe3O4 composites composed of hundreds of magnetite nanocrystals (d = 10-20 nm) are used as colloidal monomers to fabricate arrays of high aspect ratio (up to 102) linear nanochains, viz. colloidal polymers, where thermal disturbances were minimized. The arrays of colloidal polymers exhibit strong optical polarization effects owing to their geometrical anisotropy, which can be used as a simple optical filter. Furthermore, by using the binary colloidal mixture of different magnetic colloids, including different sized Fe3O4 and magnetoplasmonic Ag@Fe3O4, low aspect ratio (2-15) colloidal chains, viz. magnetic/plasmonic oligomers, with tunable lengths were fabricated, affording a facile but an effective approach to modulate the optical properties of the chains. The scalable fabrication of well-aligned, linear colloidal polymers and oligomers opens up appealing opportunities for the development of sensors, subwavelength waveguides, optical tweezers, and enhanced solar harvesting devices.
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Affiliation(s)
- Van Tan Tran
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
- Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 10000, Vietnam
| | - Dong Kyu Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jeonghyo Kim
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Ki-Jae Jeong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Chang-Seok Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 46241, Republic of Korea
| | - Jaebeom Lee
- Department of Chemistry, Chungnam National University, Daejeon 34134, Republic of Korea
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Kohama N, Suwabe C, Ishii H, Hayashi K, Nagao D. Characterization on magnetophoretic velocity of the cluster of submicron-sized composite particles applicable to magnetic separation and purification. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Tran VT, Kim J, Kim J, Lee D, Jeong KJ, Lee J. Optical Anisotropicity of Core-Shell or Yolk-Shell-typed Ag@Fe3
O4
Nanochains. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11587] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Van Tan Tran
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
| | - Jeonghyo Kim
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
| | - Jonghyeok Kim
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
| | - Dongkyu Lee
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
| | - Ki-Jae Jeong
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
| | - Jaebeom Lee
- Departments of Cogno-Mechatronics Engineering; Pusan National University; Busan 46241 Republic of Korea
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Chen Y, Zhang Y, Kou Q, Liu Y, Han D, Wang D, Sun Y, Zhang Y, Wang Y, Lu Z, Chen L, Yang J, Xing SG. Enhanced Catalytic Reduction of 4-Nitrophenol Driven by Fe₃O₄-Au Magnetic Nanocomposite Interface Engineering: From Facile Preparation to Recyclable Application. NANOMATERIALS (BASEL, SWITZERLAND) 2018; 8:E353. [PMID: 29789457 PMCID: PMC5977367 DOI: 10.3390/nano8050353] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/18/2018] [Accepted: 05/18/2018] [Indexed: 01/22/2023]
Abstract
In this work, we report the enhanced catalytic reduction of 4-nitrophenol driven by Fe₃O₄-Au magnetic nanocomposite interface engineering. A facile solvothermal method is employed for Fe₃O₄ hollow microspheres and Fe₃O₄-Au magnetic nanocomposite synthesis via a seed deposition process. Complementary structural, chemical composition and valence state studies validate that the as-obtained samples are formed in a pure magnetite phase. A series of characterizations including conventional scanning/transmission electron microscopy (SEM/TEM), Mössbauer spectroscopy, magnetic testing and elemental mapping is conducted to unveil the structural and physical characteristics of the developed Fe₃O₄-Au magnetic nanocomposites. By adjusting the quantity of Au seeds coating on the polyethyleneimine-dithiocarbamates (PEI-DTC)-modified surfaces of Fe₃O₄ hollow microspheres, the correlation between the amount of Au seeds and the catalytic ability of Fe₃O₄-Au magnetic nanocomposites for 4-nitrophenol (4-NP) is investigated systematically. Importantly, bearing remarkable recyclable features, our developed Fe₃O₄-Au magnetic nanocomposites can be readily separated with a magnet. Such Fe₃O₄-Au magnetic nanocomposites shine the light on highly efficient catalysts for 4-NP reduction at the mass production level.
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Affiliation(s)
- Yue Chen
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Yuanyuan Zhang
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Qiangwei Kou
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Yang Liu
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Donglai Han
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China.
| | - Dandan Wang
- Technology Development Department, GLOBALFOUNDRIES (Singapore) Pte. Ltd., 60 Woodlands Industrial Park D, Street 2, Singapore 738406, Singapore.
| | - Yantao Sun
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Yongjun Zhang
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Yaxin Wang
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Ziyang Lu
- School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China.
| | - Lei Chen
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Jinghai Yang
- College of Physics, Jilin Normal University, Siping 136000, China.
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Changchun 130103, China.
| | - Scott Guozhong Xing
- United Microelect Corp. Ltd., 3 Pasir Ris Dr 12, Singapore 519528, Singapore.
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Tran VT, Kim J, Tufa LT, Oh S, Kwon J, Lee J. Magnetoplasmonic Nanomaterials for Biosensing/Imaging and in Vitro/in Vivo Biousability. Anal Chem 2017; 90:225-239. [PMID: 29088542 DOI: 10.1021/acs.analchem.7b04255] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Van Tan Tran
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
| | - Jeonghyo Kim
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
| | - Lemma Teshome Tufa
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
| | - Sangjin Oh
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
| | - Junyoung Kwon
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
| | - Jaebeom Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan, 609-735 Republic of Korea
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Song Y, Tran VT, Lee J. Tuning Plasmon Resonance in Magnetoplasmonic Nanochains by Controlling Polarization and Interparticle Distance for Simple Preparation of Optical Filters. ACS APPLIED MATERIALS & INTERFACES 2017; 9:24433-24439. [PMID: 28696665 DOI: 10.1021/acsami.7b06977] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Magnetoplasmonic Fe3O4-coated Ag nanoparticles (NPs) are assembled in large scale (18 × 18 mm2) in order to observe unique modulation of plasmonic coupling and optical tunable application via both external magnetic field and the combination of magnetic dipole and electrostatic interactions of particle-particle and particle-substrate. These large nanochains film exhibits outstanding tunability of plasmonic resonance from visible to near-infrared range by controlling the polarization angle and interparticle distance (IPD). The enormous spectral shift mainly originated from far-field rather than near-field coupling of Ag cores because of the sufficiently large separation between them in which Fe3O4 shell acts as spacer. This tunable magnetoplasmonic film can be applicable in the field of anisotropic optical waveguides, tunable optical filter, and nanoscale sensing platform.
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Affiliation(s)
- Y Song
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan 46241, Republic of Korea
| | - V T Tran
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan 46241, Republic of Korea
| | - J Lee
- Department of Cogno-Mechatronics Engineering, Pusan National University , Busan 46241, Republic of Korea
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In situ self-assembly of gold nanoparticles on hydrophilic and hydrophobic substrates for influenza virus-sensing platform. Sci Rep 2017; 7:44495. [PMID: 28290527 PMCID: PMC5349514 DOI: 10.1038/srep44495] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2016] [Accepted: 02/08/2017] [Indexed: 11/30/2022] Open
Abstract
Nanomaterials without chemical linkers or physical interactions that reside on a two-dimensional surface are attractive because of their electronic, optical and catalytic properties. An in situ method has been developed to fabricate gold nanoparticle (Au NP) films on different substrates, regardless of whether they are hydrophilic or hydrophobic surfaces, including glass, 96-well polystyrene plates, and polydimethylsiloxane (PDMS). A mixture of sodium formate (HCOONa) and chloroauric acid (HAuCl4) solution was used to prepare Au NP films at room temperature. An experimental study of the mechanism revealed that film formation is dependent on surface wettability and inter particle attraction. The as-fabricated Au NP films were further applied to the colorimetric detection of influenza virus. The response to the commercial target, New Caledonia/H1N1/1999 influenza virus, was linear in the range from 10 pg/ml to 10 μg/ml and limit of detection was 50.5 pg/ml. In the presence of clinically isolated influenza A virus (H3N2), the optical density of developed color was dependent on the virus concentration (10–50,000 PFU/ml). The limit of detection of this study was 24.3 PFU/ml, a limit 116 times lower than that of conventional ELISA (2824.3 PFU/ml). The sensitivity was also 500 times greater than that of commercial immunochromatography kits.
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Zheng J, Dai B, Liu J, Liu J, Ji M, Liu J, Zhou Y, Xu M, Zhang J. Hierarchical Self-Assembly of Cu 7Te 5 Nanorods into Superstructures with Enhanced SERS Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:35426-35434. [PMID: 27959501 DOI: 10.1021/acsami.6b11058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This paper reports a strategy to get self-assembly of Cu7Te5 nanorods into hierarchical superstructures: the side-by-side self-assembly of nanorods into microscale one-dimensional (1D) nanowires (primary structure), the side-by-side alignments of the 1D nanowires into two-dimensional (2D) nanowire bundles (secondary structure), and the further rolling up of the 2D bundles into three-dimensional (3D) microtubes (tertiary structure). It was found that the oleylamine (OLA)/n-dodecanethiol (DDT) mixture as a binary capping agent was key to produce Cu7Te5 nanorods in the quantum size regime with high monodispersity, and this was a prerequisite for their hierarchical self-assembly based on elaborate control of the solvent evaporation process. The obtained Cu7Te5 microtube superstructures were used as SERS substrate and showed much stronger SERS enhancement than the as-prepared Cu7Te5 nanorods before assembly. This was probably ascribed to the remarkably enhanced local electromagnetic field arising from the plasmon coupling of Cu7Te5 nanorods in the well-assembled superstructures.
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Affiliation(s)
- Jiaojiao Zheng
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
- State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University , Beijing 100084, China
| | - Baosong Dai
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
- Patent Examination Cooperation Hubei Center of The Patent Office , Wuhan 430205, China
| | - Jia Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
| | - Jialong Liu
- Department of Physics, Beihang University , Beijing 100191, China
| | - Muwei Ji
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
| | - Jiajia Liu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
| | - Yuanmin Zhou
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
| | - Meng Xu
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
| | - Jiatao Zhang
- Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing institute of Technology , Beijing 10081, China
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Scaramuzza S, Badocco D, Pastore P, Coral DF, Fernández van Raap MB, Amendola V. Magnetically Assembled SERS Substrates Composed of Iron-Silver Nanoparticles Obtained by Laser Ablation in Liquid. Chemphyschem 2016; 18:1026-1034. [DOI: 10.1002/cphc.201600651] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Indexed: 01/20/2023]
Affiliation(s)
| | - Denis Badocco
- University of Padua; Department of Chemical Sciences; Padua Italy
| | - Paolo Pastore
- University of Padua; Department of Chemical Sciences; Padua Italy
| | - Diego F. Coral
- Physics Institute of La Plata (IFLP-CONICET); Physics Department; Faculty of Exact Sciences; National University of La Plata; La Plata Argentina
| | - Marcela B. Fernández van Raap
- Physics Institute of La Plata (IFLP-CONICET); Physics Department; Faculty of Exact Sciences; National University of La Plata; La Plata Argentina
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Zhong Y, Ni Y, Li S, Wang M. Chain-like Fe3O4@resorcinol-formaldehyde resins–Ag composite microstructures: facile construction and applications in antibacterial and catalytic fields. RSC Adv 2016. [DOI: 10.1039/c5ra27605e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Chain-like Fe3O4@RF–Ag microstructures with excellent antibacterial and catalytic activities were constructed by a simple two-step route.
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Affiliation(s)
- Yiman Zhong
- College of Chemistry and Materials Science
- Key Laboratory of Functional Molecular Solids of Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
- Wuhu
| | - Yonghong Ni
- College of Chemistry and Materials Science
- Key Laboratory of Functional Molecular Solids of Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
- Wuhu
| | - Shifeng Li
- College of Chemistry and Materials Science
- Key Laboratory of Functional Molecular Solids of Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
- Wuhu
| | - Meifang Wang
- College of Chemistry and Materials Science
- Key Laboratory of Functional Molecular Solids of Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- Anhui Normal University
- Wuhu
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14
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AHN MJ, JEONG SG, CHO GW. Antisenescence activity of G9a inhibitor BIX01294 on human bone marrow mesenchymal stromal cells. Turk J Biol 2016. [DOI: 10.3906/biy-1507-11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Zou F, Zhou H, Tan TV, Kim J, Koh K, Lee J. Dual-Mode SERS-Fluorescence Immunoassay Using Graphene Quantum Dot Labeling on One-Dimensional Aligned Magnetoplasmonic Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2015; 7:12168-75. [PMID: 26006156 DOI: 10.1021/acsami.5b02523] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
A novel dual-mode immunoassay based on surface-enhanced Raman scattering (SERS) and fluorescence was designed using graphene quantum dot (GQD) labels to detect a tuberculosis (TB) antigen, CFP-10, via a newly developed sensing platform of linearly aligned magnetoplasmonic (MagPlas) nanoparticles (NPs). The GQDs were excellent bilabeling materials for simultaneous Raman scattering and photoluminescence (PL). The one-dimensional (1D) alignment of MagPlas NPs simplified the immunoassay process and enabled fast, enhanced signal transduction. With a sandwich-type immunoassay using dual-mode nanoprobes, both SERS signals and fluorescence images were recognized in a highly sensitive and selective manner with a detection limit of 0.0511 pg mL(-1).
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Affiliation(s)
- Fengming Zou
- †High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, Anhui 230031, P. R. China
- ‡Department of Nano Fusion Technology and BK21 Plus Nano Convergence Technology Division, Pusan National University, Busan 609-735, Republic of Korea
| | - Hongjian Zhou
- §Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
- ∥Key Laboratory of Materials Physics, Centre for Environmental and Energy Nanomaterials, Anhui Key Laboratory of Nanomaterials and Nanotechnology, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, P. R. China
| | - Tran Van Tan
- §Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Jeonghyo Kim
- §Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
| | - Kwangnak Koh
- ⊥Office of General Education, Pusan National University, Busan 609-735, Republic of Korea
| | - Jaebeom Lee
- §Department of Cogno-Mechatronics Engineering, Pusan National University, Busan 609-735, Republic of Korea
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