Microdroplet Synthesis of Silver Nanoparticles with Controlled Sizes

Hong, Tingting; Lu, Aijuan; Liu, Wenfang; Chen, Chuanpin

doi:10.3390/mi10040274

Cited by 26 publications

(15 citation statements)

References 26 publications

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“…Among the various adjustable parameters of PBNPs, size is the most studied one. In general, size control of nanoparticles can be realized via precisely adjusting the synthesis parameters, such as reaction time, stabilizer molecule, solvent, reactant concentration, precursor, reaction pH, template, and so forth. − As for PBNPs, size tuning seems to be more complicated because of their low solubility and high formation speed. For example, in order to obtain smaller PBNPs, a large amount of stabilizer molecules should be used , and reactant concentration should be increased; , a lot of attempts should be taken to determine the ideal amounts of added stabilizer molecules and reactants. , The excessive use of stabilizer molecules or reactants could increase the size of PBNPs or form particles with a wide size distribution, on the contrary, , and affect their catalytic behavior .…”

Section: Introductionmentioning

confidence: 99%

Prussian Blue Nanoparticles Having Various Sizes and Crystallinities for Multienzyme Catalysis and Magnetic Resonance Imaging

Feng

Zhang

Dong

et al. 2021

ACS Appl. Nano Mater.

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Controllable synthesis of Prussian blue nanoparticles (PBNPs) is significant for their various applications. Further, exploration on the growth process of PBNPs (a kind of nanoparticle which usually undergoes an extremely complicated formation process) is instructive for controllable synthesis and will be an important supplement for crystallization theory. Herein, we developed a facile method to precisely and widely control the size and crystallinity of PBNPs. By simply tuning the prior addition volume of ferric chloride and citric acid mixture combining a double injection reaction, particles with a hydrodynamic size ranging from 120 to 40 nm were synthesized. Meanwhile, the crystallinity of the particles reduced as their size decreased. Unlike the common cognition that generation of PBNPs undergoes a nonclassical aggregation process, our results demonstrated that reaction rate dominated classical nucleation and nuclei enlargement, and the subsequent crystallization contributed to the formation of PBNPs. By carefully studying the crystallography state and transformation relationship of the as-prepared particles, PBNPs were generally divided into three categories: highly crystalline, partly crystalline, and highly amorphous PBNPs. Spectroscopy, enzymology, and magnetic measurements confirmed the size-and crystallinity-dependent physicochemical properties of the PBNPs. Smaller and amorphous PBNPs exhibited remarkably stronger peroxidase-like activity, catalase-like activity, and T 1 -weighted magnetic resonance imaging (MRI) ability, suggesting their great potential in the application of multienzyme catalysis and MRI.

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Section: Introductionmentioning

confidence: 99%

Prussian Blue Nanoparticles Having Various Sizes and Crystallinities for Multienzyme Catalysis and Magnetic Resonance Imaging

Feng

Zhang

Dong

et al. 2021

ACS Appl. Nano Mater.

View full text Add to dashboard Cite

show abstract

“…Over the past decade, Ag NPs have been widely used, especially due to their antimicrobial, optical, and electrochemical properties [ 114 ]. The intrinsic features of AgNPs are in strong correlation with particle size, shape, composition, crystallinity, and structure, among which size and shape are the most important [ 103 ]. For this reason, the possibility for precise control within microfluidic devices increased the research interest in microreactor synthesis.…”

Section: Nanomaterials Synthesized Through Microfluidic Methodsmentioning

confidence: 99%

Nanomaterials Synthesis through Microfluidic Methods: An Updated Overview

et al. 2021

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Microfluidic devices emerged due to an interdisciplinary “collision” between chemistry, physics, biology, fluid dynamics, microelectronics, and material science. Such devices can act as reaction vessels for many chemical and biological processes, reducing the occupied space, equipment costs, and reaction times while enhancing the quality of the synthesized products. Due to this series of advantages compared to classical synthesis methods, microfluidic technology managed to gather considerable scientific interest towards nanomaterials production. Thus, a new era of possibilities regarding the design and development of numerous applications within the pharmaceutical and medical fields has emerged. In this context, the present review provides a thorough comparison between conventional methods and microfluidic approaches for nanomaterials synthesis, presenting the most recent research advancements within the field.

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“…In microfluidic systems holding regular flows, slopes in concentration are specifically manipulated by varying lengths of micro-channels or comparable velocities of input streams of fluids [98]. Efficient mixing of reactants in microchannels is achievable in less than 60 ms [99]. In microfluidics, residence time can also be controlled by regulating geometry or length of microchannels and prompt alteration of investigational circumstances in microseconds [100].…”

Section: Advantages Of Microfluidic Nanoparticle Productionmentioning

confidence: 99%

Microfluidic‐based nanoparticle synthesis and their potential applications

et al. 2021

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Microfluidic-based nanoparticle synthesis and their potential applicationsA lot of substantial innovation in advancement of microfluidic field in recent years to produce nanoparticle reveals a number of distinctive characteristics, for instance, compactness, controllability, fineness in process, and stability along with minimal reaction amount. Recently, a prompt development, as well as realization in the production of nanoparticles in microfluidic environment having dimension of micro to nanometers and constituents extending from metals, semiconductors to polymers, has been made. Microfluidics technology integrates fluid mechanics for the production of nanoparticles having exclusive with homogenous sizes, shapes, and morphology, which are utilized in several bioapplications such as biosciences, drug delivery, and healthcare including food engineering. Nanoparticles are usually well-known for having fine and rough morphology because of their small dimensions including exceptional physical, biological, chemical, and optical properties. Though the orthodox procedures need huge instruments, costly autoclaves, use extra power, extraordinary heat loss, as well as take surplus time for synthesis. Additionally, this is fascinating to systematize, assimilate, in addition, to reduce traditional tools onto one platform to produce micro and nanoparticles. The synthesis of nanoparticles by microfluidics permits fast handling besides better efficacy of method utilizing the smallest components for process. Herein, we will focus on synthesis of nanoparticles by means of microfluidic devices intended for different bioapplications.

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Microdroplet Synthesis of Silver Nanoparticles with Controlled Sizes

Cited by 26 publications

References 26 publications

Prussian Blue Nanoparticles Having Various Sizes and Crystallinities for Multienzyme Catalysis and Magnetic Resonance Imaging

Prussian Blue Nanoparticles Having Various Sizes and Crystallinities for Multienzyme Catalysis and Magnetic Resonance Imaging

Nanomaterials Synthesis through Microfluidic Methods: An Updated Overview

Microfluidic‐based nanoparticle synthesis and their potential applications

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