1
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Liu L, Bai B, Yang X, Du Z, Jia G. Anisotropic Heavy-Metal-Free Semiconductor Nanocrystals: Synthesis, Properties, and Applications. Chem Rev 2023; 123:3625-3692. [PMID: 36946890 DOI: 10.1021/acs.chemrev.2c00688] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
Heavy-metal (Cd, Hg, and Pb)-containing semiconductor nanocrystals (NCs) have been explored widely due to their unique optical and electrical properties. However, the toxicity risks of heavy metals can be a drawback of heavy-metal-containing NCs in some applications. Anisotropic heavy-metal-free semiconductor NCs are desirable replacements and can be realized following the establishment of anisotropic growth mechanisms. These anisotropic heavy-metal-free semiconductor NCs can possess lower toxicity risks, while still exhibiting unique optical and electrical properties originating from both the morphological and compositional anisotropy. As a result, they are promising light-emitting materials in use various applications. In this review, we provide an overview on the syntheses, properties, and applications of anisotropic heavy-metal-free semiconductor NCs. In the first section, we discuss hazards of heavy metals and introduce the typical heavy-metal-containing and heavy-metal-free NCs. In the next section, we discuss anisotropic growth mechanisms, including solution-liquid-solid (SLS), oriented attachment, ripening, templated-assisted growth, and others. We discuss mechanisms leading both to morphological anisotropy and to compositional anisotropy. Examples of morphological anisotropy include growth of nanorods (NRs)/nanowires (NWs), nanotubes, nanoplatelets (NPLs)/nanosheets, nanocubes, and branched structures. Examples of compositional anisotropy, including heterostructures and core/shell structures, are summarized. Third, we provide insights into the properties of anisotropic heavy-metal-free NCs including optical polarization, fast electron transfer, localized surface plasmon resonances (LSPR), and so on, which originate from the NCs' anisotropic morphologies and compositions. Finally, we summarize some applications of anisotropic heavy-metal-free NCs including catalysis, solar cells, photodetectors, lighting-emitting diodes (LEDs), and biological applications. Despite the huge progress on the syntheses and applications of anisotropic heavy-metal-free NCs, some issues still exist in the novel anisotropic heavy-metal-free NCs and the corresponding energy conversion applications. Therefore, we also discuss the challenges of this field and provide possible solutions to tackle these challenges in the future.
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Affiliation(s)
- Long Liu
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Bing Bai
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Xuyong Yang
- Key Laboratory of Advanced Display and System Applications of Ministry of Education, Shanghai University, 149 Yanchang Road, Shanghai 200072, P. R. China
| | - Zuliang Du
- Key Lab for Special Functional Materials, Ministry of Education, National and Local Joint Engineering Research Center for High-Efficiency Display and Lighting Technology, School of Materials Science and Engineering, and Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng 475004, China
| | - Guohua Jia
- School of Molecular and Life Sciences, Curtin University, Perth, WA 6102, Australia
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2
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Miola M, Vernè E. In situ reduction of Ag on magnetic nanoparticles with gallic acid: effect of the synthesis parameters on morphology. Nanomedicine (Lond) 2022; 17:499-511. [PMID: 35293220 DOI: 10.2217/nnm-2021-0479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Aim: Synthesis of Fe3O4-Ag composite nanoparticles (NPs) by a new in situ reduction of Ag NPs on the surface of Fe3O4 NPs using gallic acid as a reducing agent. Materials & methods: The influence of process parameters on NP morphology and functionalization was evaluated by means of field-emission scanning/scanning transmission electron microscopy and Fourier-transform IR spectroscopy. Results & conclusion: The synthesis conditions affected the morphology of the obtained NPs, evidence of the formation of polydispersed aggregates, nanoflower-like or nanodumbbell nanocomposites. In particular, well-defined nanodumbbells were obtained in aqueous media, with an NP/gallic acid ratio of 10:1, while the presence of a silica shell did not improve the morphology of Ag NPs nucleated on the Fe3O4 core.
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Affiliation(s)
- Marta Miola
- Department of Applied Science & Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy.,PolitoBioMED Lab, Politecnico di Torino, Politecnico di Torino, Via Piercarlo Boggio 59, Torino, 10138, Italy
| | - Enrica Vernè
- Department of Applied Science & Technology, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy.,PolitoBioMED Lab, Politecnico di Torino, Politecnico di Torino, Via Piercarlo Boggio 59, Torino, 10138, Italy
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3
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Yang X, Li D, Li Q, Meng X. Spatial self-phase modulation of a Gaussian beam transmitted through a ferrofluid. APPLIED OPTICS 2020; 59:10069-10075. [PMID: 33175781 DOI: 10.1364/ao.406296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
We report on the experimental observation of the diffraction pattern formed in the far-field region when a high-power continuous-wave laser convergent or divergent Gaussian beam passes through a cuvette with ferrofluid. Two different types of diffraction rings with opposite light-intensity distribution are shown in the far field. The difference between the diffractive patterns is attributed to the interaction of the strong spatial self-phase modulation caused by the refractive index change of the medium with wavefront curvature of the input Gaussian beam. The observed behavior of the diffraction pattern dynamics is interpreted theoretically based on the Fresnel-Kirchhoff integral. The negative polarity of nonlinear refraction can be identified by the central interference profiles and the diffraction pattern. At the same time, the self-defocusing phenomena of the ferrofluid can be determined by the type of pattern. The nonlinear refraction coefficients of the ferrofluid were estimated to be ∼-2.89×10-5cm2/W (convergent Gaussian beam) and ∼-3.53×10-5cm2/W (divergent Gaussian beam). In addition, the corresponding third-order nonlinear optical susceptibility of the sample was also estimated as ∼1.43×10-5esu and ∼1.75×10-5esu, respectively. The experimental results imply a novel potential application of ferrofluid in nonlinear phase modulation devices.
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4
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Yang X, Li Q, Meng X, Li D. Evolution of Nonlinear Optical Characteristics of Magnetic Nanoparticle Colloidal Suspensions after Laser-Induced Clusters. ACS OMEGA 2020; 5:15821-15827. [PMID: 32656402 PMCID: PMC7345402 DOI: 10.1021/acsomega.0c00609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
In this paper, the nonlinear optical properties of magnetic nanoparticle colloidal solutions were studied by the Z-scan technique using 25 ps laser pulses at a wavelength of 1064 nm. Our results reveal that the formed magnetic nanoparticle clusters under high incident laser intensity will greatly affect the nonlinear optical characteristics of the solution. As the intensity of the pulsed laser decreases, the reverse saturable absorption coefficient and nonlinear refractive index of the sample tend to increase. The evolution of this nonlinear characteristic only occurs in liquid suspension. This is confirmed by fixing particles on a substrate upon which the responses observed in the liquid medium are no longer present. Besides, the possibility of generating optical trapping in the focus of the laser pulses is proposed to explain our experimental results.
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Affiliation(s)
- Xiangpeng Yang
- School
of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China
| | - Qian Li
- State
Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
| | - Xiangshen Meng
- School
of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China
| | - Decai Li
- School
of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, P.R. China
- State
Key Laboratory of Tribology, Tsinghua University, Beijing 100084, P.R. China
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5
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Li X, Peng J, Liu R, Liu J, Feng T, Qyyum A, Gao C, Xue M, Zhang J. Fe 3O 4 nanoparticle-enabled mode-locking in an erbium-doped fiber laser. FRONTIERS OF OPTOELECTRONICS 2020; 13:149-155. [PMID: 36641554 PMCID: PMC9743941 DOI: 10.1007/s12200-020-1057-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 06/17/2020] [Indexed: 06/17/2023]
Abstract
In this paper, we have proposed and demonstrated the generation of passively mode-locked pulses and dissipative soliton resonance in an erbium-doped fiber laser based on Fe3O4 nanoparticles as saturable absorbers. We obtained self-starting mode-locked pulses with fundamental repetition frequency of 7.69 MHz and center wavelength of 1561 nm. The output of a pulsed laser has spectral width of 0.69 nm and pulse duration of 14 ns with rectangular pulse profile at the pump power of 190 mW. As far as we know, this is the firsttimethatFe3O4 nanoparticles have been developed as low-dimensional materials for passive mode-locking with rectangular pulse. Our experiments have confirmed that Fe3O4 has a wide prospect as a nonlinear photonics device for ultrafast fiber laser applications.
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Affiliation(s)
- Xiaohui Li
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China.
| | - Jiajun Peng
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Ruisheng Liu
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China
| | - Jishu Liu
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Tianci Feng
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Abdul Qyyum
- College of Physics and Information Technology, Shaanxi Normal University, Xi'an, 710119, China
| | - Cunxiao Gao
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China.
| | - Mingyuan Xue
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China
| | - Jian Zhang
- State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, 710119, China
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6
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Cheng P, Du Y, Han M, Shu X. Mode-locked and Q-switched mode-locked fiber laser based on a ferroferric-oxide nanoparticles saturable absorber. OPTICS EXPRESS 2020; 28:13177-13186. [PMID: 32403797 DOI: 10.1364/oe.391006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
We demonstrated an ultrafast erbium-doped fiber laser (EDFL) based on ferroferric-oxide (Fe3O4) nanoparticles as a saturable absorber (SA). The investigated SA was based on magnetic fluid deposited on the end face of a fiber ferrule connector. When the SA was inserted into an EDFL cavity, a stable 2.93 ps mode-locked pulse can be achieved by adjusting the intra-cavity polarization controller. The pulse had a central wavelength of 1572.39 nm and a 3 dB bandwidth of 1.39 nm. We also obtained Q-switched mode-locked pulses at 1593.4 nm. The repetition frequency and the temporal width of the Q-switched pulse envelope varied with the pump power. When the pump power reached 225 mW, the maximum average output power and the pulse envelope energy were up to 4.51 mW and 235.5 nJ. To the best of our knowledge, this is the first time that mode-locked and Q-switched mode-locked pulses have been obtained in a fiber laser based on Fe3O4 nanoparticles.
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7
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Liu JS, Li XH, Qyyum A, Guo YX, Chai T, Xu H, Jiang J. Fe 3O 4 nanoparticles as a saturable absorber for giant chirped pulse generation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2019; 10:1065-1072. [PMID: 31165033 PMCID: PMC6541357 DOI: 10.3762/bjnano.10.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Accepted: 05/07/2019] [Indexed: 06/09/2023]
Abstract
Fe3O4 nanoparticles (FONPs) are magnetic materials with a small band gap and have well-demonstrated applications in ultrafast photonics, medical science, magnetic detection, and electronics. Very recently, FONPs were proposed as an ideal candidate for pulse generation in fiber-based oscillators. However, the pulses obtained to date are on the order of microseconds, which is too long for real application in communication. Here, we report the use of FONPs synthesized by a sol-hydrothermal method and used as a saturable absorber (SA) to achieve nanosecond pulses in an erbium-doped fiber laser (EDFL) for the first time. The proposed fiber laser is demonstrated to have a narrow spectral width of around 0.8 nm and a fixed fundamental repetition rate (RPR) of 4.63 MHz, whose spectra and pulse dynamics are different from the mode-locked lasers reported previously. It is demonstrated that the proposed fiber laser based on a FONP SA operates in the giant-chirp mode-locked regime. The most important result is the demonstration of a pulse duration of 55 ns at an output power of 16.2 mW, which is the shortest pulse based on FONPs for EDFLs reported to date. Our results demonstrate that the FONP dispersion allows for an excellent photonic material for application in ultrafast photonics devices, photoconductive detectors, and optical modulators.
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Affiliation(s)
- Ji-Shu Liu
- School of Physics & Information Technology, Shaanxi Normal University, Xi’an 710119, China
| | - Xiao-Hui Li
- School of Physics & Information Technology, Shaanxi Normal University, Xi’an 710119, China
| | - Abdul Qyyum
- School of Physics & Information Technology, Shaanxi Normal University, Xi’an 710119, China
| | - Yi-Xuan Guo
- School of Physics & Information Technology, Shaanxi Normal University, Xi’an 710119, China
| | - Tong Chai
- School of Physics & Information Technology, Shaanxi Normal University, Xi’an 710119, China
| | - Hua Xu
- Shaanxi Key Laboratory for Advanced Energy Devices, School of Materials Science and Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Jie Jiang
- Hunan Key Laboratory of Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha and 410083, China
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8
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Mao D, Cui X, He Z, Lu H, Zhang W, Wang L, Zhuang Q, Hua S, Mei T, Zhao J. Broadband polarization-insensitive saturable absorption of Fe 2O 3 nanoparticles. NANOSCALE 2018; 10:21219-21224. [PMID: 30417197 DOI: 10.1039/c8nr07551d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The synthesis and functionalization of transition-metal oxides are one of the most active research areas in advanced materials. As a typical transition-metal oxide, iron oxide has been widely used in lithium-ion batteries, gas sensors, and for water treatment. Herein, we synthesized Fe2O3 nanoparticles by a co-precipitation method that is inexpensive and non-toxic. The Fe2O3 nanoparticles exhibited broadband saturable absorption. Furthermore, thin Fe2O3 polyvinyl alcohol films were prepared to realize Q-switched operations in a ytterbium-doped fibre laser, an erbium-doped fibre laser, and a thulium-doped fibre laser. Attributed to the polarization-insensitive feature of the saturable absorber, Q-switched cylindrical vector beams were also generated based on mode coupling and selection in two-mode fibre lasers. Such Fe2O3 nanoparticles show great promise for use in Q-switching applications of infrared fibre lasers and cylindrical vector lasers.
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Affiliation(s)
- Dong Mao
- MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, and Shaanxi Key Laboratory of Optical Information Technology, School of Science, Northwestern Polytechnical University, Xi'an 710072, China.
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9
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Wei W, Hong R, Jing M, Shao W, Tao C, Zhang D. Thickness-dependent surface plasmon resonance of ITO nanoparticles for ITO/In-Sn bilayer structure. NANOTECHNOLOGY 2018; 29:015705. [PMID: 29139394 DOI: 10.1088/1361-6528/aa9abe] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tuning the localized surface plasmon resonance (LSPR) in doped semiconductor nanoparticles (NPs), which represents an important characteristic in LSPR sensor applications, still remains a challenge. Here, indium tin oxide/indium tin alloy (ITO/In-Sn) bilayer films were deposited by electron beam evaporation and the properties, such as the LSPR and surface morphology, were investigated by UV-VIS-NIR double beam spectrophotometer and atomic force microscopy (AFM), respectively. By simply engineering the thickness of ITO/In-Sn NPs without any microstructure fabrications, the LSPR wavelength of ITO NPs can be tuned by a large amount from 858 to 1758 nm. AFM images show that the strong LSPR of ITO NPs is closely related to the enhanced coupling between ITO and In-Sn NPs. Blue shifts of ITO LSPR from 1256 to 1104 nm are also observed in the as-annealed samples due to the higher free carrier concentration. Meanwhile, we also demonstrated that the ITO LSPR in ITO/In-Sn NPs structures has good sensitivity to the surrounding media and stability after 30 d exposure in air, enabling its application prospects in many biosensing devices.
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Affiliation(s)
- Wenzuo Wei
- Engineering Research Center of Optical Instruments and Systems, Ministry of Education and Shanghai Key Lab of Modern Optical Systems, University of Shanghai for Science and Technology, No. 516 Jungong Road, Shanghai 200093, People's Republic of China
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10
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Dini D, Calvete MJF, Hanack M. Nonlinear Optical Materials for the Smart Filtering of Optical Radiation. Chem Rev 2016; 116:13043-13233. [PMID: 27933768 DOI: 10.1021/acs.chemrev.6b00033] [Citation(s) in RCA: 245] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The control of luminous radiation has extremely important implications for modern and future technologies as well as in medicine. In this Review, we detail chemical structures and their relevant photophysical features for various groups of materials, including organic dyes such as metalloporphyrins and metallophthalocyanines (and derivatives), other common organic materials, mixed metal complexes and clusters, fullerenes, dendrimeric nanocomposites, polymeric materials (organic and/or inorganic), inorganic semiconductors, and other nanoscopic materials, utilized or potentially useful for the realization of devices able to filter in a smart way an external radiation. The concept of smart is referred to the characteristic of those materials that are capable to filter the radiation in a dynamic way without the need of an ancillary system for the activation of the required transmission change. In particular, this Review gives emphasis to the nonlinear optical properties of photoactive materials for the function of optical power limiting. All known mechanisms of optical limiting have been analyzed and discussed for the different types of materials.
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Affiliation(s)
- Danilo Dini
- Department of Chemistry, University of Rome "La Sapienza" , P.le Aldo Moro 5, I-00185 Rome, Italy
| | - Mário J F Calvete
- CQC, Department of Chemistry, Faculty of Science and Technology, University of Coimbra , Rua Larga, P 3004-535 Coimbra, Portugal
| | - Michael Hanack
- Institut für Organische Chemie, Universität Tübingen , Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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11
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Sanusi K, Stone JM, Nyokong T. Nonlinear optical behaviour of indium-phthalocyanine tethered to magnetite or silica nanoparticles. NEW J CHEM 2015. [DOI: 10.1039/c4nj01619j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enhanced nonlinear optical properties (NLO) were observed for an indium phthalocyanine–magnetite nanocomposite at 532 nm compared to the performance of the bare phthalocyanine and its silica nanoparticle dyad.
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Affiliation(s)
- Kayode Sanusi
- Department of Chemistry
- Rhodes University
- Grahamstown 6140
- South Africa
| | - Justin M. Stone
- Department of Chemistry
- Rhodes University
- Grahamstown 6140
- South Africa
| | - Tebello Nyokong
- Department of Chemistry
- Rhodes University
- Grahamstown 6140
- South Africa
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12
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Singh C, Sharma R, Shukla V, Khundrakpam P, Misra R, Bindra K, Chari R. Optical limiting and nonlinear optical studies of ferrocenyl substituted calixarenes. Chem Phys Lett 2014. [DOI: 10.1016/j.cplett.2014.10.030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Ding X, Liow CH, Zhang M, Huang R, Li C, Shen H, Liu M, Zou Y, Gao N, Zhang Z, Li Y, Wang Q, Li S, Jiang J. Surface Plasmon Resonance Enhanced Light Absorption and Photothermal Therapy in the Second Near-Infrared Window. J Am Chem Soc 2014; 136:15684-93. [DOI: 10.1021/ja508641z] [Citation(s) in RCA: 472] [Impact Index Per Article: 47.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xianguang Ding
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Chi Hao Liow
- School
of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Mengxin Zhang
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Renjun Huang
- Department
of Radiology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Chunyan Li
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - He Shen
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Mengya Liu
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yu Zou
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Nan Gao
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Zhijun Zhang
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Yonggang Li
- Department
of Radiology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Qiangbin Wang
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
| | - Shuzhou Li
- School
of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798
| | - Jiang Jiang
- i-Lab,
Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
- Key
Laboratory of Nano-Bio Interface, Division of Nanobiomedicine, Suzhou
Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China
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14
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Chen J, Liu Y, Zhu G, Yuan A. Ag@Fe3O4nanowire: fabrication, characterization and peroxidase-like activity. CRYSTAL RESEARCH AND TECHNOLOGY 2014. [DOI: 10.1002/crat.201300440] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Junzhi Chen
- School of Material Science and Engineering; Jiangsu University of Science and Technology; Zhenjiang 212003 China
| | - Yuanjun Liu
- School of Biology and Chemical Engineering; Jiangsu University of Science and Technology; Zhenjiang 212018 China
| | - Guoxing Zhu
- School of Chemistry and Chemical Engineering; Jiangsu University; Zhenjiang 212013 China
| | - Aihua Yuan
- School of Material Science and Engineering; Jiangsu University of Science and Technology; Zhenjiang 212003 China
- School of Biology and Chemical Engineering; Jiangsu University of Science and Technology; Zhenjiang 212018 China
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15
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Sun L, He J, An S, Zhang J, Ren D. Facile one-step synthesis of Ag@Fe3O4 core–shell nanospheres for reproducible SERS substrates. J Mol Struct 2013. [DOI: 10.1016/j.molstruc.2013.04.048] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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16
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Jiang W, Zhou Y, Zhang Y, Xuan S, Gong X. Superparamagnetic Ag@Fe3O4 core-shell nanospheres: fabrication, characterization and application as reusable nanocatalysts. Dalton Trans 2012; 41:4594-601. [PMID: 22354183 DOI: 10.1039/c2dt12307j] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Superparamagnetic Ag@Fe(3)O(4) nanospheres with core-shell nanostructures have been prepared by a facile one-pot method. The diameter of the as-synthesized nanospheres was about 200 nm and the core sizes were between 50 and 100 nm. By varying the concentrations, particles with tunable core size and total size are successfully achieved. Time dependent experiments were constructed to investigate the synthesis mechanism, which indicated that the present method corresponded to an Ostwald ripening progress. The BET area of the core-shell nanospheres is about 22.6 m(2)/g and this result indicates that the product shows a porous character. The saturated magnetization of the superparamagnetic Ag@Fe(3)O(4) nanospheres is 27.4 emu g(-1) at room temperature, which enables them to be recycled from the solution by simply applying a small magnet. Due to the unique nanostructure, these particles show high performance in catalytic reduction of 4-nitrophenol and can be used as reusable nanocatalysts.
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Affiliation(s)
- Wanquan Jiang
- Department of Chemistry, University of Science and Technology of China (USTC), Hefei 230026, PR China.
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Ding X, Zou Y, Jiang J. Au–Cu2S heterodimer formation via oxidization of AuCu alloy nanoparticles and in situ formed copper thiolate. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm34916g] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Reena Mary AP, Suchand Sandeep CS, Narayanan TN, Philip R, Moloney P, Ajayan PM, Anantharaman MR. Nonlinear and magneto-optical transmission studies on magnetic nanofluids of non-interacting metallic nickel nanoparticles. NANOTECHNOLOGY 2011; 22:375702. [PMID: 21852735 DOI: 10.1088/0957-4484/22/37/375702] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Oxide free stable metallic nanofluids have the potential for various applications such as in thermal management and inkjet printing apart from being a candidate system for fundamental studies. A stable suspension of nickel nanoparticles of ∼ 5 nm size has been realized by a modified two-step synthesis route. Structural characterization by x-ray diffraction and transmission electron microscopy shows that the nanoparticles are metallic and are phase pure. The nanoparticles exhibited superparamagnetic properties. The magneto-optical transmission properties of the nickel nanofluid (Ni-F) were investigated by linear optical dichroism measurements. The magnetic field dependent light transmission studies exhibited a polarization dependent optical absorption, known as optical dichroism, indicating that the nanoparticles suspended in the fluid are non-interacting and superparamagnetic in nature. The nonlinear optical limiting properties of Ni-F under high input optical fluence were then analyzed by an open aperture z-scan technique. The Ni-F exhibits a saturable absorption at moderate laser intensities while effective two-photon absorption is evident at higher intensities. The Ni-F appears to be a unique material for various optical devices such as field modulated gratings and optical switches which can be controlled by an external magnetic field.
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Affiliation(s)
- A P Reena Mary
- Department of Physics, Cochin University of Science and Technology, Cochin 682 022, India
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Prucek R, Tuček J, Kilianová M, Panáček A, Kvítek L, Filip J, Kolář M, Tománková K, Zbořil R. The targeted antibacterial and antifungal properties of magnetic nanocomposite of iron oxide and silver nanoparticles. Biomaterials 2011; 32:4704-13. [PMID: 21507482 DOI: 10.1016/j.biomaterials.2011.03.039] [Citation(s) in RCA: 178] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Accepted: 03/12/2011] [Indexed: 11/16/2022]
Abstract
Two types of magnetic binary nanocomposites, Ag@Fe(3)O(4) and γ-Fe(2)O(3)@Ag, were synthesized and characterized and their antibacterial activities were tested. As a magnetic component, Fe(3)O(4) (magnetite) nanoparticles with an average size of about 70 nm and monodisperse γ-Fe(2)O(3) (maghemite) nanoparticles with an average size of 5 nm were used. Nanocomposites were prepared via in situ chemical reduction of silver ions by maltose in the presence of particular magnetic phase and molecules of polyacrylate serving as a spacer among iron oxide and silver nanoparticles. In the case of the Ag@Fe(3)O(4) nanocomposite, silver nanoparticles, caught at the surfaces of Fe(3)O(4) nanocrystals, were around 5 nm in a size. On the contrary, in the case of the γ-Fe(2)O(3)@Ag nanocomposite, ultrafine γ-Fe(2)O(3) nanoparticles surrounded silver nanoparticles ranging in a size between 20 and 40 nm. In addition, the molecules of polyacrylate in this nanocomposite type suppress considerably interparticle magnetic interactions as proved by magnetization measurements. Both synthesized nanocomposites exhibited very significant antibacterial and antifungal activities against ten tested bacterial strains (minimum inhibition concentrations (MIC) from 15.6 mg/L to 125 mg/L) and four candida species (MIC from 1.9 mg/L to 31.3 mg/L). Moreover, acute nanocomposite cytotoxicity against mice embryonal fibroblasts was observed at concentrations of higher than 430 mg/L (Ag@Fe(3)O(4)) and 292 mg/L (γ-Fe(2)O(3)@Ag). With respect to the non-cytotoxic nature of the polyacrylate linker, both kinds of silver nanocomposites are well applicable for a targeted magnetic delivery of silver nanoparticles in medicinal and disinfection applications.
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Affiliation(s)
- Robert Prucek
- Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Faculty of Science, Palacky University, Slechtitelu 11, 78371 Olomouc, Czech Republic.
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Zhang X, Niu H, Yan J, Cai Y. Immobilizing silver nanoparticles onto the surface of magnetic silica composite to prepare magnetic disinfectant with enhanced stability and antibacterial activity. Colloids Surf A Physicochem Eng Asp 2011. [DOI: 10.1016/j.colsurfa.2010.12.009] [Citation(s) in RCA: 90] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mao J, Cao X, Zhen J, Shao H, Gu H, Lu J, Ying JY. Facile synthesis of hybrid nanostructures from nanoparticles, nanorods and nanowires. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10349k] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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