A microfluidic-based controllable synthesis of rolled or rigid ultrathin gold nanoplates

Fu, Qiang; Ran, Guangjun; Xu, Weilin

doi:10.1039/c5ra02461g

Cited by 10 publications

(7 citation statements)

References 52 publications

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“…2d and e, micro droplets and multiphase ow can stably form in this chip, demonstrating multi-layer tape lithography quantied for microfabrication. The quantied stable micro-droplet formation inside this chip is also provided in ESI 2, † promising a wide range of microdroplet-applicant downstream elds such as cultivation of mammalian cells, 32 controllable synthesis of nanoplates, 33 and interactional assay of cell pairs, 34 etc.…”

Section: Y-channel Microchipmentioning

confidence: 98%

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Rapid manufacture of modifiable 2.5-dimensional (2.5D) microstructures for capillary force-driven fluidic velocity control

Manz

2015

RSC Adv.

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A cost-effective, straightforward and modifiable 2.5D microfabrication methodology, as we term multi-layertape lithography, is presented here for the first time. It uses a commercial scalpel to prototype 2.5D multilevel microchannels on commercial tape as thin as 500µm in 10 minutes. Three functional microfluidic devices are applied with this methodology, and display high performance regarding microdroplet formation, multiphase flux and self-powered sequential fluid delivery. We find the microchannel height of a 2.5D 15 microchip can efficiently control capillary force-driven flow velocity. The autonomous sample flow rates through 55 mm long microchannels are 0.1 µL/s, 0.21 µL/s and 0.39 µL/s when multilevel microchannel heights are 200 µm, 300 µm, and 400 µm, respectively.20After detachment of two, one, and one layers of tape from the three microchannels of a 2.5D tape-master, the microchannel heights are modified to 100 µm, 250 µm and 300 µm, with the autonomous sample flow rate changing to 0.03 µL/s, 0.15 µL/s and 0.28 µL/s, 25 correspondingly. In contrast with 2D microfabrication technology, we anticipate that multi-layer tape lithography will pave the way for researchers, especially those from resource-limited labs, to develop costeffective, practical, self-powered, and disposable 2.5D 30 microfluidic devices.

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Section: Y-channel Microchipmentioning

confidence: 98%

“…The quantified stable 80 micro-droplet formation inside this chip is also provided in supplementary material (ESI 2), promising a wide range of microdroplet-applicant downstream fields such as cultivation of mammalian cells, 32 controllable synthesis of nanoplates,33 and interactional assay of cell pairs,34 etc. a) The glass slide.…”

mentioning

confidence: 99%

Rapid manufacture of modifiable 2.5-dimensional (2.5D) microstructures for capillary force-driven fluidic velocity control

Manz

2015

RSC Adv.

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“…Recently, different types of synthetic strategies based on microfluidic technology have been reported for the structural manipulation and functionalization of gold nanoparticles. Gold nano-leaflets with ultra-thin folded structures were synthesized at room temperature by using a three-channel microfluidic chip [ 43 ]. In this microfluidic synthesis, cetyltrimethylammonium chloride (CTAC) and sodium borohydride (NaBH 4 ) were used as protective and reducing agents, respectively.…”

Section: Progress Of Microfluidic Technology In the Synthesis Of Imentioning

confidence: 99%

Synthesis and Surface Engineering of Inorganic Nanomaterials Based on Microfluidic Technology

Shen

Shafiq

et al. 2020

Nanomaterials

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The controlled synthesis and surface engineering of inorganic nanomaterials hold great promise for the design of functional nanoparticles for a variety of applications, such as drug delivery, bioimaging, biosensing, and catalysis. However, owing to the inadequate and unstable mass/heat transfer, conventional bulk synthesis methods often result in the poor uniformity of nanoparticles, in terms of microstructure, morphology, and physicochemical properties. Microfluidic technologies with advantageous features, such as precise fluid control and rapid microscale mixing, have gathered the widespread attention of the research community for the fabrication and engineering of nanomaterials, which effectively overcome the aforementioned shortcomings of conventional bench methods. This review summarizes the latest research progress in the microfluidic fabrication of different types of inorganic nanomaterials, including silica, metal, metal oxides, metal organic frameworks, and quantum dots. In addition, the surface modification strategies of nonporous and porous inorganic nanoparticles based on microfluidic method are also introduced. We also provide the readers with an insight on the red blocks and prospects of microfluidic approaches, for designing the next generation of inorganic nanomaterials.

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“…Intriguingly, despite having an opposite charge, protein multilayers on AuNPs could stabilize and selflimit the cluster growth. 19,30 Self-limited supraparticles have also been synthesized through more complex synthetic routes: seed-mediated, 18,31,32 sacrificial substrate, 28 thermal, 23 and other methods. 33,34 Among them, Banin and colleagues found that semiconductor ZnSe nanoparticles could assemble spontaneously via a high-temperature synthetic route, which resulted in stable and monodisperse nanorod couples connected by twinning structures (Fig.…”

Section: Assembly Mechanism and Synthesismentioning

confidence: 99%

Self-limited self-assembly of nanoparticles into supraparticles: towards supramolecular colloidal materials by design

Piccinini

Pallarola

Battaglini

et al. 2016

Mol. Syst. Des. Eng.

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A microfluidic-based controllable synthesis of rolled or rigid ultrathin gold nanoplates

Abstract: A microfluidic-based controllable seeded synthesis of rolled or rigid ultrathin gold nanoplates.

Cited by 10 publications

References 52 publications

Rapid manufacture of modifiable 2.5-dimensional (2.5D) microstructures for capillary force-driven fluidic velocity control

Rapid manufacture of modifiable 2.5-dimensional (2.5D) microstructures for capillary force-driven fluidic velocity control

Synthesis and Surface Engineering of Inorganic Nanomaterials Based on Microfluidic Technology

Self-limited self-assembly of nanoparticles into supraparticles: towards supramolecular colloidal materials by design

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