Chemical and physical processes for integrated temperature control in microfluidic devices

Lab on a Chip ◽  
2003 ◽  
Vol 3 (1) ◽  
pp. 1 ◽  
Author(s):  
Rosanne M. Guijt ◽  
Arash Dodge ◽  
Gijs W. K. van Dedem ◽  
Nico F. de Rooij ◽  
Elisabeth Verpoorte
Keyword(s):  
Temperature Control ◽  
Microfluidic Devices ◽  
Physical Processes

Integrated Temperature Control System for Microfluidic Devices

2002 ◽  
pp. 617-619
Author(s):  
A. Dodge ◽  
R. M. Guijt ◽  
G. W. K. van Dedem ◽  
N. F. de Rooij ◽  
E. Verpoorte
Keyword(s):  
Control System ◽  
Temperature Control ◽  
Microfluidic Devices ◽  
Temperature Control System

scholarly journals Preparation of monodisperse hybrid gel particles with various morphologies via flow rate and temperature control

Soft Matter ◽  
2019 ◽  
Vol 15 (35) ◽  
pp. 6934-6937 ◽  
Author(s):  
Toshimitsu Kanai ◽  
Hiroki Nakai ◽  
Ayaka Yamada ◽  
Masafumi Fukuyama ◽  
David A. Weitz
Keyword(s):  
Temperature Control ◽  
Flow Rate ◽  
Microfluidic Devices ◽  
Hybrid Gel ◽  
Gel Particles

We report a facile method for preparing monodisperse hybrid smart gel particles with various morphologies by using microfluidic devices.

Numerical Simulation of Microfluidic Separators

2013 ◽  
Vol 795 ◽  
pp. 459-463 ◽  
Author(s):  
Shahrul A.B. Ariffin ◽  
U. Hashim ◽  
Tijjani Adam
Keyword(s):  
Numerical Simulation ◽  
Fluid Flow ◽  
Microfluidic Devices ◽  
Living Cells ◽  
Comsol Multiphysics ◽  
Physical Processes ◽  
Result Section ◽  
Flow Pressure ◽  
Fundamental Physical ◽  
Numerical Simulation Technique

Microfluidic devices present a powerful platform for working with living cells and even gases. Parameter such as the length and volume scales of these devices in miniaturize system makes it possible to develops and perform detailed analyses with several advantages. The objective of this project is to do a design of 1μm microfluidic separator device that consist the microchannel. Furthermore, another objective is to understand the fundamental physical processes of fluid flow in these devices and to predict their behavior and every method using in the simulation of COMSOL Multiphysics 3.5 software will be elaborate in numerical simulation technique section. Finally, result from the simulation such as concentration, fluidic flow pressure and velocity field will be observed and explained in the result section.

scholarly journals Computational Simulations in Advanced Microfluidic Devices: A Review

Micromachines ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 1149
Author(s):  
Violeta Carvalho ◽  
Raquel O. Rodrigues ◽  
Rui A. Lima ◽  
Senhorinha Teixeira
Keyword(s):  
Diffusion Processes ◽  
Microfluidic Devices ◽  
Shear Stresses ◽  
Biological Processes ◽  
Physical Processes ◽  
Computational Tools ◽  
Numerical Studies ◽  
Supporting Tool ◽  
Insight Into ◽  
Made In

Numerical simulations have revolutionized research in several engineering areas by contributing to the understanding and improvement of several processes, being biomedical engineering one of them. Due to their potential, computational tools have gained visibility and have been increasingly used by several research groups as a supporting tool for the development of preclinical platforms as they allow studying, in a more detailed and faster way, phenomena that are difficult to study experimentally due to the complexity of biological processes present in these models—namely, heat transfer, shear stresses, diffusion processes, velocity fields, etc. There are several contributions already in the literature, and significant advances have been made in this field of research. This review provides the most recent progress in numerical studies on advanced microfluidic devices, such as organ-on-a-chip (OoC) devices, and how these studies can be helpful in enhancing our insight into the physical processes involved and in developing more effective OoC platforms. In general, it has been noticed that in some cases, the numerical studies performed have limitations that need to be improved, and in the majority of the studies, it is extremely difficult to replicate the data due to the lack of detail around the simulations carried out.

Platinum nanoparticle-facilitated reflective surfaces for non-contact temperature control in microfluidic devices for PCR amplification

Lab on a Chip ◽  
2012 ◽  
Vol 12 (1) ◽  
pp. 127-132 ◽  
Author(s):  
Daniel C. Leslie ◽  
Erkin Seker ◽  
Lindsay A. L. Bazydlo ◽  
Briony C. Strachan ◽  
James P. Landers
Keyword(s):  
Temperature Control ◽  
Pcr Amplification ◽  
Microfluidic Devices ◽  
Contact Temperature ◽  
Platinum Nanoparticle ◽  
Reflective Surfaces

Precise temperature control in microfluidic devices using Joule heating of ionic liquids

Lab on a Chip ◽  
2004 ◽  
Vol 4 (5) ◽  
pp. 417 ◽  
Author(s):  
Andrew J. de Mello ◽  
Matthew Habgood ◽  
N. Llewellyn Lancaster ◽  
Tom Welton ◽  
Robert C. R. Wootton
Keyword(s):  
Ionic Liquids ◽  
Temperature Control ◽  
Joule Heating ◽  
Microfluidic Devices

Models of Thermodynamic Properties of Prominences

1979 ◽  
Vol 44 ◽  
pp. 349-355
Author(s):  
R.W. Milkey
Keyword(s):  
Thermodynamic Properties ◽  
Mass Transport ◽  
Emission Spectrum ◽  
Thermodynamic Parameters ◽  
Working Group ◽  
Physical Processes ◽  
Theoretical Concepts ◽  
Group 3 ◽  
Observational Techniques

The focus of discussion in Working Group 3 was on the Thermodynamic Properties as determined spectroscopically, including the observational techniques and the theoretical modeling of physical processes responsible for the emission spectrum. Recent advances in observational techniques and theoretical concepts make this discussion particularly timely. It is wise to remember that the determination of thermodynamic parameters is not an end in itself and that these are interesting chiefly for what they can tell us about the energetics and mass transport in prominences.

A High Angle, Double Tilting Cold Stage for the AEI EM7

1974 ◽  
Vol 32 ◽  
pp. 450-451
Author(s):  
P.R. Swann ◽  
A.E. Lloyd
Keyword(s):  
Habit Plane ◽  
Temperature Control ◽  
Tilt Angle ◽  
Cooling System ◽  
Thermal Drift ◽  
High Angle ◽  
Cold Stage ◽  
High Degree ◽  
Better Than

Figure 1 shows the design of a specimen stage used for the in situ observation of phase transformations in the temperature range between ambient and −160°C. The design has the following features a high degree of specimen stability during tilting linear tilt actuation about two orthogonal axes for accurate control of tilt angle read-out high angle tilt range for stereo work and habit plane determination simple, robust construction temperature control of better than ±0.5°C minimum thermal drift and transmission of vibration from the cooling system.

Sampling and analysis of the air-water interface with SEM and EDS of microlayers

1989 ◽  
Vol 47 ◽  
pp. 1004-1005
Author(s):  
Randall W. Smith ◽  
John Dash
Keyword(s):  
Heavy Metals ◽  
Surface Microlayer ◽  
Surface Films ◽  
Water Interface ◽  
Physical Processes ◽  
Infrared Spectroscopic Analysis ◽  
Eds Analysis ◽  
Air Water Interface ◽  
Significant Area ◽  
Bulk Chemical

The structure of the air-water interface forms a boundary layer that involves biological ,chemical geological and physical processes in its formation. Freshwater and sea surface microlayers form at the air-water interface and include a diverse assemblage of organic matter, detritus, microorganisms, plankton and heavy metals. The sampling of microlayers and the examination of components is presently a significant area of study because of the input of anthropogenic materials and their accumulation at the air-water interface. The neustonic organisms present in this environment may be sensitive to the toxic components of these inputs. Hardy reports that over 20 different methods have been developed for sampling of microlayers, primarily for bulk chemical analysis. We report here the examination of microlayer films for the documentation of structure and composition.Baier and Gucinski reported the use of Langmuir-Blogett films obtained on germanium prisms for infrared spectroscopic analysis (IR-ATR) of components. The sampling of microlayers has been done by collecting fi1ms on glass plates and teflon drums, We found that microlayers could be collected on 11 mm glass cover slips by pulling a Langmuir-Blogett film from a surface microlayer. Comparative collections were made on methylcel1ulose filter pads. The films could be air-dried or preserved in Lugol's Iodine Several slicks or surface films were sampled in September, 1987 in Chesapeake Bay, Maryland and in August, 1988 in Sequim Bay, Washington, For glass coverslips the films were air-dried, mounted on SEM pegs, ringed with colloidal silver, and sputter coated with Au-Pd, The Langmuir-Blogett film technique maintained the structure of the microlayer intact for examination, SEM observation and EDS analysis were then used to determine organisms and relative concentrations of heavy metals, using a Link AN 10000 EDS system with an ISI SS40 SEM unit. Typical heavy microlayer films are shown in Figure 3.

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