Light-Directed Self-Assembly of Robust Alginate Gels at Precise Locations in Microfluidic Channels

2016 ◽  
Vol 8 (27) ◽  
pp. 17529-17538 ◽  
Author(s):  
Hyuntaek Oh ◽  
Annie Xi Lu ◽  
Vishal Javvaji ◽  
Don L. DeVoe ◽  
Srinivasa R. Raghavan
Keyword(s):  
Self Assembly ◽  
Microfluidic Channels ◽  
Alginate Gels

Stochastic Computing via In Operando Modulation of Rectification in Molecular Tunneling Junctions

2020 ◽  
Author(s):  
Xinkai Qiu ◽  
Sylvia Rousseva ◽  
Gang Ye ◽  
Jan C. Hummelen ◽  
Ryan Chiechi
Keyword(s):  
Self Assembly ◽  
Variable Temperature ◽  
Self Assembled Monolayers ◽  
Microfluidic Channels ◽  
Proof Of Concept ◽  
Glycol Ethers ◽  
Stochastic Computing ◽  
Assembled Monolayers ◽  
In Operando ◽  
Tunneling Junctions

This paper describes the reconfiguration of molecular tunneling junctions during operation via the self-assembly of bilayers of glycol ethers. We use well-established functional groups to modulate the magnitude and direction of rectification in assembled tunneling junctions by exposing them to solutions containing different glycol ethers. Variable-temperature measurements establish that rectification occurs by a bias-dependent tunneling-hopping mechanism and that glycol ethers, beside being an unusually efficient tunneling medium, behave identically to alkanes. We fabricated memory bits from crossbar junctions prepared by injecting eutectic Ga-In into microfluidic channels. Two 8-bit registers were able to perform logical AND operations on bit strings encoded into chemical packets as microfluidic droplets that alter the composition of the crossbar junctions through self-assembly to effect memristor-like properties. This proof of concept work demonstrates the potential for fieldable molecular-electronic devices based on tunneling junctions of self-assembled monolayers and bilayers.

Mesoscale modelling of droplets’ self-assembly in microfluidic channels

Soft Matter ◽  
2021 ◽  
Author(s):  
Andrea Montessori ◽  
Adriano Tiribocchi ◽  
Marco Lauricella ◽  
Fabio Bonaccorso ◽  
Sauro Succi
Keyword(s):  
Self Assembly ◽  
Early Stage ◽  
Microfluidic Channels ◽  
Contact Interactions ◽  
Mesoscale Modelling ◽  
Multicomponent Flows

A recently proposed mesoscale approach for the simulation of multicomponent flows with near-contact interactions is employed to investigate the early stage formation and clustering statistics of soft flowing crystals in microfluidic channels.

Fabrication of Sharp-edged 3D microparticles via folded PDMS microfluidic channels

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Chenchen Zhou ◽  
Shuaishuai Liang ◽  
Yongjian Li ◽  
Haosheng Chen ◽  
Jiang Li
Keyword(s):  
Significant Role ◽  
Self Assembly ◽  
Biomedical Engineering ◽  
Mechanical Engineering ◽  
Microfluidic Channels

3D microparticles have promising applications in self-assembly, biomedical engineering, mechanical engineering, etc. The shape of microparticles plays a significant role in their functionalities. Although numerous investigations have been conducted to...

Controlled capture and release of cardiac fibroblasts using peptide-functionalized alginate gels in microfluidic channels

Lab on a Chip ◽  
2009 ◽  
Vol 9 (11) ◽  
pp. 1507 ◽  
Author(s):  
Brian D. Plouffe ◽  
Melissa A. Brown ◽  
Rohin K. Iyer ◽  
Milica Radisic ◽  
Shashi K. Murthy
Keyword(s):  
Cardiac Fibroblasts ◽  
Microfluidic Channels ◽  
Capture And Release ◽  
Alginate Gels

Self-assembly of colloidal micelles in microfluidic channels

Soft Matter ◽  
2017 ◽  
Vol 13 (1) ◽  
pp. 222-229 ◽  
Author(s):  
Arash Nikoubashman
Keyword(s):  
Computer Simulations ◽  
Poiseuille Flow ◽  
Self Assembly ◽  
The Self ◽  
Microfluidic Channels ◽  
Distinct Cluster ◽  
Channel Center

The self-assembly of amphiphilic Janus colloids in microfluidic channels under Poiseuille flow is studied using computer simulations. The aggregates grow in the weakly sheared channel center, whereas a distinct cluster breakup occurs in strongly sheared channel regions.

scholarly journals Microfluidic Preconcentration Chip with Self-Assembled Chemical Modified Surface for Trace Carbonyl Compounds Detection

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4402 ◽  
Author(s):  
Jie Cheng ◽  
Jianwei Shao ◽  
Yifei Ye ◽  
Yang Zhao ◽  
Chengjun Huang ◽  
...  
Keyword(s):  
Water Quality ◽  
Self Assembly ◽  
Carbonyl Compounds ◽  
Microelectromechanical Systems ◽  
Fem Analysis ◽  
Microfluidic Channels ◽  
Chemical Surface ◽  
Chemical Surface Modification ◽  
Pillar Arrays ◽  
Low Sensitivity

Carbonyl compounds in water sources are typical characteristic pollutants, which are important indicators in the health risk assessment of water quality. Commonly used analytical chemistry methods face issues such as complex operations, low sensitivity, and long analysis times. Here, we report a silicon microfluidic device based on click chemical surface modification that was engineered to achieve rapid, convenient and efficient capture of trace level carbonyl compounds in liquid solvent. The micro pillar arrays of the chip and microfluidic channels were designed under the basis of finite element (FEM) analysis and fabricated by the microelectromechanical systems (MEMS) technique. The surface of the micropillars was sputtered with precious metal silver and functionalized with the organic substance amino-oxy dodecane thiol (ADT) by self-assembly for capturing trace carbonyl compounds. The detection of ppb level fluorescent carbonyl compounds demonstrates that the strategy proposed in this work shows great potential for rapid water quality testing and for other samples with trace carbonyl compounds.

Spin-Coating Self-Assembly for Micropatterning of Ultrathin Multilayer Films

2003 ◽  
Vol 775 ◽  
Author(s):  
Hongseok Jang ◽  
Sangcheol Kim ◽  
Kookheon Char
Keyword(s):  
Ultrathin Films ◽  
Self Assembly ◽  
Multilayer Films ◽  
Process Time ◽  
Microfluidic Channels ◽  
Layer By Layer ◽  
New Approach ◽  
High Line ◽  
Spinning Process ◽  
Distinct Line

AbstractA new approach to create layer-by-layer assembled multilayer ultrathin films with welldefined micropatterns in a short process time is introduced. To achieve such micropatterns with high line resolution in organic multilayer films, microfluidic channels were combined with the convective self-assembly process employing both hydrogen bonding and electrostatic intermolecular interactions. The channels were initially filled with polymer solution by capillary pressure and the residual solution was then removed by spinning process. The micropatterns with distinct line boundaries were obtained and the small ridges were also observed at the edges of the patterned lines. Spin self-assembled vertical heterostructural multilayer patterning using (PVP/PAA)5 micropatterns, which were prepared with microfluidic channels, as a template was also investigated.

Guided and fluidic self-assembly of microstructures using railed microfluidic channels

2008 ◽  
Vol 7 (7) ◽  
pp. 581-587 ◽  
Author(s):  
Su Eun Chung ◽  
Wook Park ◽  
Sunghwan Shin ◽  
Seung Ah Lee ◽  
Sunghoon Kwon
Keyword(s):  
Self Assembly ◽  
Microfluidic Channels

Flow hydrodynamics-dependent assembly of polymer-tethered gold nanoparticles in microfluidic channels

2020 ◽  
Vol 4 (11) ◽  
pp. 3240-3250
Author(s):  
Xi Mao ◽  
Zhengping Tan ◽  
Wei Lan ◽  
Huayang Wang ◽  
Haiying Tan ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Self Assembly ◽  
Inorganic Nanoparticles ◽  
Microfluidic Channels ◽  
Microfluidic Chips

Recently, self-assembly of polymer-tethered inorganic nanoparticles (NPs) in microfluidic chips has been employed as an effective approach to fabricate novel assemblies.

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