Permeability and Selectivity Analysis for Affinity‐based Nanoparticle Separation through Nanochannels

AIChE Journal ◽  
2022 ◽  
Author(s):  
Hongping Yu ◽  
Zhichao Wang ◽  
Ting Long ◽  
Yu Li ◽  
Dilantha Thushara ◽  
...  
Keyword(s):  
Nanoparticle Separation

scholarly journals Focusing of Particles in a Microchannel with Laser Engraved Groove Arrays

Biosensors ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 263
Author(s):  
Tianlong Zhang ◽  
Yigang Shen ◽  
Ryota Kiya ◽  
Dian Anggraini ◽  
Tao Tang ◽  
...  
Keyword(s):  
Open Space ◽  
Lateral Displacement ◽  
Reynolds Numbers ◽  
Secondary Flows ◽  
Particle Sedimentation ◽  
Nanoparticle Separation ◽  
Wide Range ◽  
Fs Laser ◽  
Channel Bottom ◽  
Myoblast Cells

Continuous microfluidic focusing of particles, both synthetic and biological, is significant for a wide range of applications in industry, biology and biomedicine. In this study, we demonstrate the focusing of particles in a microchannel embedded with glass grooves engraved by femtosecond pulse (fs) laser. Results showed that the laser-engraved microstructures were capable of directing polystyrene particles and mouse myoblast cells (C2C12) towards the center of the microchannel at low Reynolds numbers (Re < 1). Numerical simulation revealed that localized side-to-center secondary flows induced by grooves at the channel bottom play an essential role in particle lateral displacement. Additionally, the focusing performance proved to be dependent on the angle of grooves and the middle open space between the grooves based on both experiments and simulation. Particle sedimentation rate was found to critically influence the focusing of particles of different sizes. Taking advantage of the size-dependent particle lateral displacement, selective focusing of micrometer particles was demonstrated. This study systematically investigated continuous particle focusing in a groove-embedded microchannel. We expect that this device will be used for further applications, such as cell sensing and nanoparticle separation in biological and biomedical areas.

scholarly journals Silica Nanoparticle Separation from Water by Aggregation with AlCl3

2011 ◽  
Vol 51 (4) ◽  
pp. 1853-1863 ◽  
Author(s):  
Yanping Liu ◽  
Mallorie Tourbin ◽  
Sébastien Lachaize ◽  
Pascal Guiraud
Keyword(s):  
Silica Nanoparticle ◽  
Nanoparticle Separation

scholarly journals TiO2Photocatalyst Nanoparticle Separation: Flocculation in Different Matrices and Use of Powdered Activated Carbon as a Precoat in Low-Cost Fabric Filtration

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Carlos F. Liriano-Jorge ◽  
Ugur Sohmen ◽  
Altan Özkan ◽  
Holger Gulyas ◽  
Ralf Otterpohl
Keyword(s):  
Activated Carbon ◽  
Humic Acid ◽  
Photocatalytic Oxidation ◽  
Low Cost ◽  
Powdered Activated Carbon ◽  
Widespread Application ◽  
Fabric Filter ◽  
Nanoparticle Separation ◽  
Ph Range ◽  
The Impact

Separation of photocatalyst nanoparticles is a problem impeding widespread application of photocatalytic oxidation. As sedimentation of photocatalyst particles is facilitated by their flocculation, the influence of common constituents of biologically pretreated wastewaters (NaCl, NaHCO3, and their combination with humic acid sodium salt) on flocculation was tested by the pipet method. Results showed that the impact of these substances on TiO2nanoparticle flocculation is rather complex and strongly affected by pH. When humic acid was present, TiO2particles did not show efficient flocculation in the neutral and slightly basic pH range. As an alternative to photocatalyst separation by sedimentation, precoat vacuum filtration with powdered activated carbon (PAC) over low-cost spunbond polypropylene fabrics was tested in the presence of two PAC types in aqueous NaCl and NaHCO3solutions as well as in biologically treated greywater and in secondary municipal effluent. PAC concentrations of≥2 g/L were required in order to achieve a retention of nearly 95% of the TiO2nanoparticles on the fabric filter when TiO2concentration was 1 g/L. Composition of the aqueous matrix and PAC type had a slight impact on precoat filtration. PAC precoat filtration represents a potential pretreatment for photocatalyst removal by micro- or ultrafiltration.

Nanoparticle Separation in Salted Droplet Microreactors

2002 ◽  
Vol 14 (6) ◽  
pp. 2623-2627 ◽  
Author(s):  
Bin Xia ◽  
I. Wuled Lenggoro ◽  
Kikuo Okuyama
Keyword(s):  
Nanoparticle Separation

Modeling and simulation of nanoparticle separation through a solid‐state nanopore

2012 ◽  
Vol 33 (2) ◽  
pp. 325-333 ◽  
Author(s):  
Talukder Z. Jubery ◽  
Anmiv S. Prabhu ◽  
Min J. Kim ◽  
Prashanta Dutta
Keyword(s):  
Solid State ◽  
Modeling And Simulation ◽  
Nanoparticle Separation

Real-time modulated nanoparticle separation with an ultra-large dynamic range

Lab on a Chip ◽  
2016 ◽  
Vol 16 (1) ◽  
pp. 75-85 ◽  
Author(s):  
Kerwin Kwek Zeming ◽  
Nitish V. Thakor ◽  
Yong Zhang ◽  
Chia-Hung Chen
Keyword(s):  
Real Time ◽  
Dynamic Range ◽  
Lateral Displacement ◽  
Large Dynamic Range ◽  
Deterministic Lateral Displacement ◽  
Nanoparticle Separation

Real-time nanoparticle separation in deterministic lateral displacement can be achieved by manipulating solution iconicity.

Micro/nanoparticle separation via curved nano-gap device with enhanced size resolution

2016 ◽  
Vol 1455 ◽  
pp. 172-177 ◽  
Author(s):  
Nobutoshi Ota ◽  
Yuri Owa ◽  
Takayuki Kawai ◽  
Yo Tanaka
Keyword(s):  
Nanoparticle Separation
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