Three-dimensional microarchitected materials and devices using nanoparticle assembly by pointwise spatial printing

Saleh, Mohammad Sadeq; Hu, Chunshan; Panat, Rahul

doi:10.1126/sciadv.1601986

Cited by 154 publications

(146 citation statements)

References 36 publications

(51 reference statements)

Supporting

Mentioning

142

Contrasting

Unclassified

Order By: Relevance

“…40 Additionally, the assembly range and speed can be manipulated in situ by changing the intensity of light. In the long run, combined with the advanced 3D printing technique, 44 micro crystalline structures of defined orientation may be obtained.…”

Section: Discussionmentioning

confidence: 99%

Seedless assembly of colloidal crystals by inverted micro-fluidic pumping

Niu

Palberg

2018

Soft Matter

View full text Add to dashboard Cite

We propose a simple seedless approach to assemble millimeter sized monolayer single colloidal crystals with desired orientations at predetermined locations on an unstructured charged substrate. This approach utilizes the millimeter-ranged fluid flow on the bottom glass substrate induced by an ion exchange resin (IEX) fixed on top of the closed sample cell. The fluid flow increases with decreasing height of the sample cell and increasing radius R of the IEX. For a single inverted pump, millimeter sized monolayer single crystals of hexagonal close packing can be obtained. For two closely spaced (D ∼ 4R) pumps, the formed crystals have a predefined orientation along the line connecting the two IEX. By patterning IEX into different structures, colloidal crystals of different complex patterns form. The present method paves a convenient way for fabricating high quality monolayer colloidal crystals for a variety of applications.

show abstract

Section: Discussionmentioning

confidence: 99%

Seedless assembly of colloidal crystals by inverted micro-fluidic pumping

Niu

Palberg

2018

Soft Matter

View full text Add to dashboard Cite

show abstract

“…dispersions) for this printing method. 1,16 The Ag nanoparticle size in the ink was 30-50 nm, the ink viscosity was about 1.5 cP, and the Ag particle loading in the ink was about 40 ± 2 wt %. The solvents used for this ink were de-ionized (DI) water and ethylene glycol.…”

Section: Methodsmentioning

confidence: 99%

“…The aerosol is driven to a nozzle using an inert gas, while a sheath gas focuses the aerosol droplets onto the substrate at a resolution of about 10 um. 1 Once the printing is complete, the 'green' shanks are heated in an oven to remove the binders and allow the sintering of the nanoparticles to form the conductive shanks.…”

Section: Microelectrode Array Construction Via 3d Printingmentioning

confidence: 99%

“…The aerosol jet printing method can even print highly complex three-dimensional metallic lattices and spirals without any support materials. 1 To this end, we developed a 3D nanoparticle printing system to open up an entirely new design space for three-dimensional bioelectronic devices. The objective was to exploit the rapid customization offered by 3D printing to demonstrate a new class of MEAs with high density and having arbitrary variation in shank heights, diameters, and routing.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

CMU Array: A 3D Nano-Printed, Customizable Ultra-High-Density Microelectrode Array Platform

Saleh

Ritchie

Nicholas

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

Microelectrode arrays (MEAs) provide the means to record electrophysiological activity fundamental to both basic and clinical neuroscience (e.g. brain-computer interfaces). Despite recent advances, current MEAs have significant limitations -including recording density, fragility, expense, and the inability to optimize the probe to individualized study or patient needs.Here we address the technological limitations through the utilization of the newest developments in 3D nanoparticle printing. 1 Our 'CMU Arrays' possess previously impossible electrode densities (> 6000 channels/cm 2 ) with tip diameters as small as 10µm. Most importantly, the probes are entirely customizable owing to the adaptive manufacturing process. Any combination of individual shank lengths, impedances, and layouts are possible. This is achieved in part via our new multi-layer, multi material, custom 3D-printed circuit boards, a fabrication advancement in itself. This device design enables new experimental avenues of targeted, large-scale recording of electrical signals from a variety of biological tissues.

show abstract

“…3D direct ink printing (DIP) is a large family of AM techniques that enable the fabrication of 3D objects from a wide range of materials, such as graphene assemblies, silvers, and high‐entropy alloys (HEAs) . During the DIP process, a suspension ink containing nanoparticles or precursors is extruded through a micrometer‐sized nozzle to print the desired 3D structures spatially (Figure f), which is generally followed by postprocessing steps, including etching, sintering, and reduction actions.…”

Section: Fabricationmentioning

confidence: 99%

Design, Fabrication, and Mechanics of 3D Micro‐/Nanolattices

Zhang

Wang

Ding

et al. 2019

Small

View full text Add to dashboard Cite

Over the past several decades, lattice materials have been developed and used as engineering materials for lightweight and stiff industrial structures. Recent advances in additive manufacturing techniques have prompted the emergence of architected materials with minimum characteristic sizes ranging from several micrometers to hundreds of nanometers. Taking advantage of the topological design, structural optimization, and size effects of nanomaterials, various 3D micro‐/nanolattice materials composed of different materials exhibit combinations of superior mechanical properties, such as low density, high strength (even approaching the theoretical limits), large deformability, good recoverability, and flaw tolerance. As a result, some micro‐/nanolattices occupy an unprecedented area in Ashby charts with a combination of different material properties. Here, recent advances in the fabrication and mechanics of micro‐/nanolattices are described. First, various design principles and advanced techniques used for the fabrication of micro‐/nanolattices are summarized. Then, the mechanical behaviors and properties of micro‐/nanolattices are further described, including the compressive Young's modulus, strength, energy absorption, recoverability, and tensile behavior, with an emphasis on mechanistic insights and origins. Finally, the main challenges in the fabrication and mechanics of micro‐/nanolattices are addressed and an outlook for further investigations and potential applications of micro‐/nanolattices in the future is provided.

show abstract

Three-dimensional microarchitected materials and devices using nanoparticle assembly by pointwise spatial printing

Abstract: Nanoparticles can be assembled in space using additive printing to create complex hierarchical 3D microarchitected and nanoarchitected materials.

Cited by 154 publications

References 36 publications

Seedless assembly of colloidal crystals by inverted micro-fluidic pumping

Seedless assembly of colloidal crystals by inverted micro-fluidic pumping

CMU Array: A 3D Nano-Printed, Customizable Ultra-High-Density Microelectrode Array Platform

Design, Fabrication, and Mechanics of 3D Micro‐/Nanolattices

Contact Info

Product

Resources

About