Improving upconversion emission of NaYF4:Yb3+, Er3+ nanoparticles by coupling Au nanoparticles and photonic crystals: The detection enhancement of Rhodamine B

Ma, Yingjin; Zhu, Jian Jun; Yang, Zhengwen; Zhang, Hailu; Qiu, Jianbei; Song, Zhiguo

doi:10.1016/j.jallcom.2019.02.331

Cited by 16 publications

(7 citation statements)

References 32 publications

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“…This high EF resulted from the synergistic effect of the promoted LSPR effect and the photonic crystal effect that encompasses the light harvesting of 980 nm NIR excitation and the reduced luminance quench by the orderly periodic spacing structure. [ 27 ] To further explore the LSPR effect by understanding the electric field distribution of plasmon resonance, COMSOL Multiphysics was conducted to simulate four distinctive structures of GF, GDF, GIOF, and D‐GIOF (Figure 3C–F). In our simulations, LSPR was highly related to the geometry of the gold nanostructures.…”

Section: Resultsmentioning

confidence: 99%

Flexible Optogenetic Transducer Device for Remote Neuron Modulation Using Highly Upconversion‐Efficient Dendrite‐Like Gold Inverse Opaline Structure

Chu

Chen

et al. 2022

Adv Healthcare Materials

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A remote optogenetic device for analyzing freely moving animals has attracted extensive attention in optogenetic engineering. In particular, for peripheral nerve regions, a flexible device is needed to endure the continuous bending movements of these areas. Here, a remote optogenetic optical transducer device made from a gold inverse opaline skeleton grown with a dendrite-like gold nanostructure (D-GIOF) and chemically grafted with upconversion nanoparticles (UCNPs) is developed. This implantable D-GIOF-based transducer device can achieve synergistic interaction of the photonic crystal effect and localized surface plasmon resonance, resulting in considerable UCNP conversion efficiency with a negligible thermal effect under low-intensity 980 nm near-infrared (NIR) light excitation. Furthermore, the D-GIOF-based transducer device exhibits remarkable emission power retention (≈100%) under different bending states, indicating its potential for realizing peripheral nerve stimulation. Finally, the D-GIOF-based transducer device successfully stimulates neuronal activities of the sciatic nerve in mice. This study demonstrates the potential of the implantable device to promote remote NIR stimulation for modulation of neural activity in peripheral nerve regions and provides proof of concept for its in vivo application in optogenetic engineering.

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Section: Resultsmentioning

confidence: 99%

Flexible Optogenetic Transducer Device for Remote Neuron Modulation Using Highly Upconversion‐Efficient Dendrite‐Like Gold Inverse Opaline Structure

Chu

Chen

et al. 2022

Adv Healthcare Materials

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“…Nanoparticles have a diameter between 1 and 100 nm, have specific characteristics such as regular morphology, and are smaller than bulk structures . Drug delivery, catalysis, artificial implants, sensing, photonics, diagnostics, imaging, and tissue engineering are some of the prominent applications of metallic nanoparticles …”

Section: Introductionmentioning

confidence: 99%

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Shirzadi‐Ahodashti

Ebrahimzadeh

Amiri

et al. 2020

Applied Organom Chemis

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The aim of this paper is to biosynthesize NiFe2O4/SiO2/Au (NiFe/Si/Au) magnetic nanocatalyst using the sonochemical method. This is the first study to synthesize this compound using this method. To obtain optimum morphology and size of products, the synthesis was performed in the presence of polyvinylpyrrolidone, maltose, glucose, and fructose as capping agents and Crataegus pentagyna leaf extract and NaBH4 as reducing agents. Vibrating‐sample magnetometer, field‐emission scanning electron microscopy, Fourier‐transform infrared, transmission electron microscopy, X‐ray diffraction, energy‐dispersive X‐ray spectroscopy, and differential reflectance spectroscopy techniques were performed to confirm the preparation of magnetic products. The as‐synthesized magnetic samples were used to enhance the photocatalytic degradation and antibacterial activity. The NiFe/Si/Au nanocatalysts exhibited an excellent photocatalytic activity by degradation of rhodamine b, methylene blue, and erythrosine as organic contaminants under ultraviolet and visible light irradiation. The degradation curves illustrate that the degradation of anionic dyes is more than that of cationic dyes. In addition, antibacterial activity of as‐prepared nanocatalyst against seven bacterial species was investigated. Because of their antibacterial effects, as‐synthesized products show a high antibacterial activity against various bacteria. Consequently, the NiFe/Si/Au nanocatalysts with high antibacterial activity and excellent potential photocatalyst activity can be used in environmental and medical sciences for wastewater treatment.

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“…Extensive research has been done on understanding the theory of the UC process [1][2][3][4] and on material development, predominantly nanocrystals [5][6][7][8][9][10][11][12][13][14][15] . By now, UC is exploited in a broad range of applications ranging from bioimaging 13,[16][17][18][19][20] , theranostics [21][22][23][24] , security 20,25,26 , data storage 27 , and data analysis 28 to photovoltaics 13,15,19,20,[29][30][31] . The probability of an UC process increases non-linearly with increasing irradiance because two photons need to be absorbed in immediate vicinity in space and time 1 .…”

mentioning

confidence: 99%

“…Photonic structures that have been investigated for UC enhancement include regular [32][33][34] and inverse opal photonic crystals 35,36 also in combination with plasmonic effects 21,25,26,[37][38][39][40][41] , as well as 2D photonic crystals 42 , waveguide structures 43 , cavities 44,45 , and multi-layer stacks 46 . The highest reported UC enhancement factors range from <30 for cavities 44 and opal structures [32][33][34] , to three-to-four orders of magnitude for hybrid opal photonic structures combined with plasmonic resonances 25,37 and waveguide structures 43 .…”

mentioning

confidence: 99%

Experimental validation of a modeling framework for upconversion enhancement in 1D-photonic crystals

et al. 2021

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Photonic structures can be designed to tailor luminescence properties of materials, which becomes particularly interesting for non-linear phenomena, such as photon upconversion. However, there is no adequate theoretical framework to optimize photonic structure designs for upconversion enhancement. Here, we present a comprehensive theoretical model describing photonic effects on upconversion and confirm the model’s predictions by experimental realization of 1D-photonic upconverter devices with large statistics and parameter scans. The measured upconversion photoluminescence enhancement reaches 82 ± 24% of the simulated enhancement, in the mean of 2480 separate measurements, scanning the irradiance and the excitation wavelength on 40 different sample designs. Additionally, the trends expected from the modeled interaction of photonic energy density enhancement, local density of optical states and internal upconversion dynamics, are clearly validated in all experimentally performed parameter scans. Our simulation tool now opens the possibility of precisely designing photonic structure designs for various upconverting materials and applications.

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Improving upconversion emission of NaYF4:Yb3+, Er3+ nanoparticles by coupling Au nanoparticles and photonic crystals: The detection enhancement of Rhodamine B

Cited by 16 publications

References 32 publications

Flexible Optogenetic Transducer Device for Remote Neuron Modulation Using Highly Upconversion‐Efficient Dendrite‐Like Gold Inverse Opaline Structure

Flexible Optogenetic Transducer Device for Remote Neuron Modulation Using Highly Upconversion‐Efficient Dendrite‐Like Gold Inverse Opaline Structure

Novel NiFe/Si/Au magnetic nanocatalyst: Biogenic synthesis, efficient and reusable catalyst with enhanced visible light photocatalytic degradation and antibacterial activity

Experimental validation of a modeling framework for upconversion enhancement in 1D-photonic crystals

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