Photoelectric conversion switch based on quantum dots with i-motif DNA scaffolds

Meng, Haifeng; Yang, Yang; Chen, Yingjuan; Zhou, Yunlong; Liu, Yaling; Chen, Xin an; Ma, Hongwei; Tang, Zhiyong; Li, Dongsheng; Jiang, Lei

doi:10.1039/b903325d

Cited by 45 publications

(30 citation statements)

References 26 publications

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“…For example, the distance between the Au electrode and the quantum dots was tuned in situ using the pHsensitive i-motif DNA, resulting in a dynamic pH-driven modulation system for photoelectric conversion. 62 As illustrated in Figure 3a, the Au electrode was modified with an i-motif DNA machine, and the other end of the DNA was connected with CdSe/ZnS core-shell quantum dots. With the switching between acidic and basic conditions, the i-motif machine can change its configuration and bring the quantum dots closer to/further from the Au electrode, respectively, providing a strategy to control dynamically the photoelectric conversion.…”

Section: Dynamic Regulation Of Nps With Dnamentioning

confidence: 99%

Spatial regulation of synthetic and biological nanoparticles by DNA nanotechnology

Yang

Liu

2015

NPG Asia Mater

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Nanoparticles are among the most fascinating materials because of their unique size-dependent properties. The spatial positioning of the nanoparticles with a nanoscale precision will greatly enhance their potential for use in the fabrication of functional materials and devices. Recently, the development of DNA nanotechnology has enabled the construction of two-and three-dimensional, precisely addressable nanostructures and devices based on DNA sequence design and programmable assembly. Advances in conjugating DNA with nanoparticles can bridge these two technologies and provide scientists with a new tool to study material transportation and energy transfer at a nanometer scale. In this review, we summarize the recent progress in this emerging research field, which includes not only the static arrangements of inorganic nanoparticles but also the dynamic regulation of organic and biological units at a nanometer scale. With the rapid development in this field, new challenges and new possibilities will emerge and bring about fruitful achievements with a significant impact on future work.

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Section: Dynamic Regulation Of Nps With Dnamentioning

confidence: 99%

Spatial regulation of synthetic and biological nanoparticles by DNA nanotechnology

Yang

Liu

2015

NPG Asia Mater

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“…A photoelectric conversion switch based on quantum dots with i-motif DNA scaffolds is illustrated in Fig. 8 [266]. So far, logic devices, memories, and sensors have all been demonstrated [116,499].…”

Section: Applications Electronicsmentioning

confidence: 99%

Application of Nanoparticles in Manufacturing

Hu¹,

Tuck²,

Wildman³

et al. 2015

Handbook of Nanoparticles

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With the development of nanoscience and nanotechnology, manufacturing is undergoing revolutionary changes. Nanoparticles, due to their novel and often enhanced properties, are now more and more used in manufacturing. In this chapter, the state-of-the-art application of nanoparticles in manufacturing is reviewed. The contents include five parts: (a) role of nanoparticles in manufacturing, (b) manufacturing methods, (c) applications, (d) challenges, and (e) conclusions. The roles of nanoparticles are divided into three categories: (i) building blocks, being the major component of a manufactured product by solid-state or colloidal nanoparticle consolidation; (ii) functional filler, as an addition for functionality, such as property improver, catalyst, stimuli-responsive, sensing, imaging, and carrier; and (iii) nanocomposites for multifunctionality. Various manufacturing methods and novel trends are summarized in this chapter, including top-down and bottom-up, from 2D to 3D, from cleanroom to desktop, 3D printing, and bio-assisted methods, such as DNA origami. Direct applications in areas of flexible electronics, molecular electronics, solar cells, construction industry, water treatment, and biomedical devices are presented. The associated challenges including nanoparticle safety issue, sustainable manufacturing, economic issue, and scale-up are discussed. Role of Nanoparticles in ManufacturingWith the development of nanoscience and nanotechnology, manufacturing is undergoing revolutionary changes. Nanoparticles, due to their novel and often enhanced properties, have more and more been used in various manufacturing applications. Their role can generally be divided into three categories: (a) building blocks, (b) functional filler, and (c) nanocomposites for multifunctionality, which is summarized in Table 1. Building BlockNanoparticles sometimes act like the bricks in a house-building process to be the main component of a manufactured product. They can be consolidated via solid-and liquid-based methods. Solid-State Nanoparticle ConsolidationSolid-state metallic, ceramic, amorphous, and compound particles can be thermomechanically processed to form bulk 2D/3D structures with desired strength and level of densification (even full densification is possible). Reported methods include powder compact forging/extrusion, equal channel angular extrusion/ pressing, and hot pressing/sinter forging combined with conventional heating, laser sintering, microwave sintering, electric discharge sintering, or spark plasma sintering [33,255,278,306,425,426,476,492]. Particles with a narrow size distribution and spherical shape are desired to achieve low pore-to-

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“…Photoluminescence colloidal semiconductor nanocrystals, also known as quantum dots, arouse a great interest in fundamental studies and technological applications [1][2][3][4][5][6][7][8][9][10]. As one of the most important II-VI nanocrystals, cadmium selenide (CdSe) becomes a 'model' nanocrystal system for a hotspot of basic studies on the photoelectrical properties of nanocrystals because of its accessibility of high-quality and stability [11].…”

Section: Introductionmentioning

confidence: 99%

Bowl-shaped superstructures of CdSe nanocrystals with the narrow-sized distribution for a high-performance photoswitch

Zhang

Shen

Feng

et al. 2015

Chemical Physics Letters

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Photoelectric conversion switch based on quantum dots with i-motif DNA scaffolds

Abstract: Combining the best features of both inorganic quantum dots and i-motif DNA, a dynamic pH-driven modulation system of photoelectric conversion was realized by making use of their conjugates immobilized on a Au electrode.

Cited by 45 publications

References 26 publications

Spatial regulation of synthetic and biological nanoparticles by DNA nanotechnology

Spatial regulation of synthetic and biological nanoparticles by DNA nanotechnology

Application of Nanoparticles in Manufacturing

Bowl-shaped superstructures of CdSe nanocrystals with the narrow-sized distribution for a high-performance photoswitch

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