On‐Chip Screening of Experimental Conditions for the Synthesis of Noble‐Metal Nanostructures with Different Morphologies

Abstract

The applications of nanostructures critically depend on their morphologies. Although significant progress has been made in the chemical synthesis of nanostructures with a variety of different morphologies, it is still highly desired to develop an approach that allows one to quickly identify the best set of parameters for nanostructure syntheses. Herein, an on-chip approach to the rapid screening of experimental conditions pivotal to the production of nanostructures with different morphologies is reported. The key component of this approach is an array of reactors containing solutions with a one- or two-dimensional gradient in reagent concentration, pH value, or reaction temperature. In the proof-of-concept experiments, the parameters needed for the production of Au and Pd nanostructures with various morphologies are quickly identified. In principle, this approach can be extended to other systems for rapid screening and optimization of experimental conditions involved in the syntheses of different types of nanostructures.

An Immobilized Enzyme Reactor for Spatiotemporal Control over Reaction Products

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An Optical Sensor with Polyaniline-Gold Hybrid Nanostructures for Monitoring pH in Saliva

“…Noble metal nanostructures featuring high surface area, small dimensions, and unique physical properties have strong plasmonic responses, and are competent materials for LSPR biosensors [27]. Various metal nanostructures have been fabricated with controlled shape and size [28,29].…”

Fabrication of Magnetic–Fluorescent Bifunctional Flexible Coaxial Nanobelts by Electrospinning Using a Modified Coaxial Spinneret

“…Therefore, if a strong luminescence of mag-netic-fluorescent bifunctional nanofibers is to be achieved, rare-earth complexes must be effectively isolated from Fe 3 O 4 NPs to avoid direct contact. [16,17] It has attracted increasing interest from scientists owing to its anisotropy, large width-thickness ratio, and unique optical, electrical, and magnetic properties. [15] The nanobelt is a kind of nanomaterial with a special morphology.…”

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