Effect of surface structuring onto the efficiency of the in- and out-coupling of light from a chip in Lab-on-a-chip approaches with optical detection

2013 ◽  
Author(s):  
Ines Frese ◽  
Rainer Gransee
Keyword(s):  
Optical Detection ◽  
Lab On A Chip ◽  
Surface Structuring ◽  
Effect Of Surface

EXPERIMENTAL INVESTIGATIONS ON THE INTERACTIONS BETWEEN LIQUIDS AND STRUCTURES TO PASSIVELY CONTROL THE SURFACE-DRIVEN CAPILLARY FLOW IN MICROFLUIDIC LAB-ON-A-CHIP SYSTEMS TO SEPARATE THE MICROPARTICLES FOR BIOENGINEERING APPLICATIONS

2016 ◽  
Vol 24 (06) ◽  
pp. 1750075 ◽  
Author(s):  
SUBHADEEP MUKHOPADHYAY
Keyword(s):  
Surface Area ◽  
Capillary Flow ◽  
Separation Efficiency ◽  
Volume Ratio ◽  
Lab On A Chip ◽  
Microfluidic Devices ◽  
Research Paper ◽  
Novel Approach ◽  
The Individual ◽  
Effect Of Surface

In this research paper, total 246 individual microfluidic devices have been fabricated by maskless lithography, hot embossing lithography and direct bonding technique. The effect of surface area to volume ratio on the surface-driven capillary flow of different liquids has been experimentally investigated in these microfluidic devices fabricated by polymethylmethacrylate (PMMA). Also, the individual effects of liquid viscosity and surface wettability on the surface-driven capillary flow of different liquids are experimentally investigated. The polystyrene particles of 10[Formula: see text][Formula: see text]m diameters have been separated from the aqueous microparticle suspensions in the microfluidic lab-on-a-chip systems with 100% separation efficiency. Also, the polystyrene particles of 5[Formula: see text][Formula: see text]m diameters have been separated from a different set of aqueous microparticle suspensions in the microfluidic lab-on-a-chip systems with 100% separation efficiency. The individual designs of the microfluidic lab-on-a-chip systems are a novel approach in this research paper. The effect of surface area to volume ratio on the separation time is experimentally investigated as another novel approach of this research paper.

Lab-on-a-chip optical detection system using plastic fiber optics

2003 ◽  
Author(s):  
James N. McMullin ◽  
H. Qiao ◽  
Sanket Goel ◽  
S. A. McColman ◽  
A. Grundmann
Keyword(s):  
Fiber Optics ◽  
Detection System ◽  
Optical Detection ◽  
Lab On A Chip ◽  
Optical Detection System

scholarly journals Recent Developments in Optical Detection Technologies in Lab-on-a-Chip Devices for Biosensing Applications

Sensors ◽  
2014 ◽  
Vol 14 (8) ◽  
pp. 15458-15479 ◽  
Author(s):  
Nuno Pires ◽  
Tao Dong ◽  
Ulrik Hanke ◽  
Nils Hoivik
Keyword(s):  
Optical Detection ◽  
Lab On A Chip ◽  
Recent Developments ◽  
Detection Technologies

scholarly journals Lab-on-a-Chip based device for an optical detection of immobilized cells for food analytics

2012 ◽  
Vol 57 (SI-1 Track-G) ◽  
Author(s):  
F. Sauter ◽  
R. Klemm ◽  
C. Gärtner ◽  
P. Miethe ◽  
S. Henze ◽  
...  
Keyword(s):  
Immobilized Cells ◽  
Optical Detection ◽  
Lab On A Chip

PDMS based photonic lab-on-a-chip for the selective optical detection of heavy metal ions

The Analyst ◽  
2013 ◽  
Vol 138 (3) ◽  
pp. 839-844 ◽  
Author(s):  
Bergoi Ibarlucea ◽  
César Díez-Gil ◽  
Inma Ratera ◽  
Jaume Veciana ◽  
Antonio Caballero ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Optical Detection ◽  
Lab On A Chip

Nucleation and initial growth of Pd2Si crystals on Si(111)

1993 ◽  
Vol 51 ◽  
pp. 844-845
Author(s):  
Xianghong Tong ◽  
Oliver Pohland ◽  
J. Murray Gibson
Keyword(s):  
High Vacuum ◽  
Dark Field ◽  
Ultra High Vacuum ◽  
Initial Growth ◽  
Surface And Interface ◽  
Dark Field Imaging ◽  
Transmission Electron ◽  
Initial Stage ◽  
Effect Of Surface

The nucleation and initial stage of Pd2Si crystals on Si(111) surface is studied in situ using an Ultra-High Vacuum (UHV) Transmission Electron Microscope (TEM). A modified JEOL 200CX TEM is used for the study. The Si(111) sample is prepared by chemical thinning and is cleaned inside the UHV chamber with base pressure of 1x10−9 τ. A Pd film of 20 Å thick is deposited on to the Si(111) sample in situ using a built-in mini evaporator. This room temperature deposited Pd film is thermally annealed subsequently to form Pd2Si crystals. Surface sensitive dark field imaging is used for the study to reveal the effect of surface and interface steps.The initial growth of the Pd2Si has three stages: nucleation, growth of the nuclei and coalescence of the nuclei. Our experiments shows that the nucleation of the Pd2Si crystal occurs randomly and almost instantaneously on the terraces upon thermal annealing or electron irradiation.

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