High-throughput droplet microfluidic synthesis of hierarchical metal-organic framework nanosheet microcapsules

Wu, Songting; Xin, Zhong; Zhao, Shicheng; Sun, Shengtong

doi:10.1007/s12274-019-2507-4

Cited by 23 publications

(11 citation statements)

References 44 publications

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“…Compared to the single-phase flow, L-L segmented flow format can aid anisotropic growth through interfacial reactions and interfacial adsorption. [101][102][103] The former has been demonstrated by Kulkarni et al for the anisotropic growth of Au nanostructures in a L-L segmented flow microreactor. [102] The L-L segmented flow in this study consisted of a reducing agent in the organic phase and tetrachloroauric acid (HAuCl 4 ) in the aqueous phase, as generalized in Figure 5A.…”

Section: Liquid-liquid Segmented Flowmentioning

confidence: 91%

“…Compared to the single‐phase flow, L‐L segmented flow format can aid anisotropic growth through interfacial reactions and interfacial adsorption. [ 101–103 ] The former has been demonstrated by Kulkarni et al. for the anisotropic growth of Au nanostructures in a L‐L segmented flow microreactor.…”

Section: In‐flow Shape Control Of Colloidal Nanomaterialsmentioning

confidence: 98%

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Accelerated Development of Colloidal Nanomaterials Enabled by Modular Microfluidic Reactors: Toward Autonomous Robotic Experimentation

2020

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Solution-processed organic, [1-3] metallic, [4-6] and semiconductor [7,8] nanomaterials, possess unique size-related physicochemical, optical, magnetic, and electronic properties. These materials have enabled groundbreaking advancements in a variety of applications including catalysis, [9-11] drug delivery, [12,13] data storage, [14] and solar cells. [15] Different nucleation and growth models such as LaMer burst nucleation, [16] Ostwald ripening, [17] Finke-Watzky two-step mechanism, [18] orientated attachment, [19] and coalescence [20] have attempted to explain the mechanisms through which nanoparticles are formed in In recent years, microfluidic technologies have emerged as a powerful approach for the advanced synthesis and rapid optimization of various solution-processed nanomaterials, including semiconductor quantum dots and nanoplatelets, and metal plasmonic and reticular framework nanoparticles. These fluidic systems offer access to previously unattainable measurements and synthesis conditions at unparalleled efficiencies and sampling rates. Despite these advantages, microfluidic systems have yet to be extensively adopted by the colloidal nanomaterial community. To help bridge the gap, this progress report details the basic principles of microfluidic reactor design and performance, as well as the current state of online diagnostics and autonomous robotic experimentation strategies, toward the size, shape, and composition-controlled synthesis of various colloidal nanomaterials. By discussing the application of fluidic platforms in recent high-priority colloidal nanomaterial studies and their potential for integration with rapidly emerging artificial intelligence-based decision-making strategies, this report seeks to encourage interdisciplinary collaborations between microfluidic reactor engineers and colloidal nanomaterial chemists. Full convergence of these two research efforts offers significantly expedited and enhanced nanomaterial discovery, optimization, and manufacturing.

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Section: Liquid-liquid Segmented Flowmentioning

confidence: 91%

Section: In‐flow Shape Control Of Colloidal Nanomaterialsmentioning

confidence: 98%

Accelerated Development of Colloidal Nanomaterials Enabled by Modular Microfluidic Reactors: Toward Autonomous Robotic Experimentation

2020

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“…[75] Parameters such as reaction temperature and time, ligands, metal ion, molar ratio of starting materials, overall concentration, pH, and solvent are considered and established in MOF synthesis by the HT method. [145][146][147][148][149] The conventional MOFs, such as classical Fe 3+ and Al 3+ based MOFs with amino group (NH2) compounds of MIL-53-NH2, MIL-88-NH2, and MIL-101-NH2 with ligands of H2BDC-NH2, and also MIL-101(Cr), MIL-118, -120, -121, CAU-4, HKUST-1, and Fe-BTT have been developed by the HT method and reported by Stock and Biswas. [73] Recently, a novel work using HT method for screening the macroscale heteroepitaxial alignment MOFs from thousands of structures was presented based on surface chemical compatibility, lattice matching with substrate and interfacial bonding, which could be completed in a few days on a desktop workstation.…”

Section: High Throughput (Ht) Screening Of Mofsmentioning

confidence: 99%

Metal-organic Framework-based Materials: Synthesis, Stability and Applications in Food Safety and Preservation

Nong¹,

Liu²,

Wang³

et al. 2020

ES Food Agroforest

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Investigation on food safety and preservation is essential to provide high quality and safe food for human beings, including accurate determination and efficient removal of inorganic heavy metal ions and organic contaminants, as well as regulation of food postharvest ripening and intelligent sterilization. In the last two decades, metal-organic frameworks (MOFs), as functionalized porous materials, have aroused interests of researchers because of their advantages of high porosity, large specific surface area, flexible structure properties, and abundant binding sites for guest molecules. MOFs have shown great potentials in practical applications in food and related fields. In this overview, we summarized the MOF crystallization mechanisms, synthesis routes and methods, stability, as well as the applications in food contamination including removal of heavy metal ions, dyes, and antibiotics, and food preservation including regulation of fruit and vegetable ripening, removal of moisture and oxygen, and high-efficiency sterilization. Finally, two perspectives focusing on the development of MOFs for innovative food research, i.e., food-grade MOFs and MOF composites are suggested based on our understanding.

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“…Films can be directly synthesized by a reaction at the liquid-liquid or gas-liquid interface, where metal ions and organic ligands exist in different phases. Most previous work on CONASHs has used planar interfaces to obtain planar films; however, other spherical functional nanomaterials have been extensively studied [19][20][21][22][23][24][25][26][27][28][29][30][31] .…”

Section: Redox-active Luminescent Coordination Nanosheet Capsules Comentioning

confidence: 99%

Redox-active, luminescent coordination nanosheet capsules containing magnetite

Arai

Toyoda

et al. 2020

Sci Rep

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Two-dimensional coordination nanosheets (CONASHs) are grown at the spherical liquid–liquid interface of a dichloromethane droplet in water to form zero-dimensional nano- and micro-capsules using a simple dropping method, a syringe-pump method, and an emulsion method. Reaction of 1,3,5-tris[4-(4′-2,2′:6′,2″-terpyridyl)phenyl]benzene (1) with Fe(BF4)2 affords electrochromic Fe(tpy)2 CONASH capsules and that of ligand 1 with ZnSO4 does photoluminescent Zn2(μ-O2SO2)2(tpy)2 CONASH capsules. Fe(tpy)2 CONASH capsules containing magnetite particles were produced by the syringe-pump method by adding magnetite to the aqueous phase, with the assembly and dispersion of the magnetite-containing CONASH capsules being easily controlled with a magnet. This indicates that physicochemically functional CONASH capsules are suitable for incorporating other functional materials to develop hybrid systems.

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High-throughput droplet microfluidic synthesis of hierarchical metal-organic framework nanosheet microcapsules

Cited by 23 publications

References 44 publications

Accelerated Development of Colloidal Nanomaterials Enabled by Modular Microfluidic Reactors: Toward Autonomous Robotic Experimentation

Accelerated Development of Colloidal Nanomaterials Enabled by Modular Microfluidic Reactors: Toward Autonomous Robotic Experimentation

Metal-organic Framework-based Materials: Synthesis, Stability and Applications in Food Safety and Preservation

Redox-active, luminescent coordination nanosheet capsules containing magnetite

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