Studies on spectroscopy of glycerol in THz range using microfluidic chip-integrated micropump

2014 ◽  
Author(s):  
Bo Su ◽  
Xue Han ◽  
Ying Wu ◽  
Cunlin Zhang
Keyword(s):  
Microfluidic Chip ◽  
Thz Range

Drop driving on digital microfluidic chip

2020 ◽  
Vol 28 (11) ◽  
pp. 2488-2496
Author(s):  
Hong WANG ◽  
◽  
Jie ZHENG ◽  
Yan-peng YAN ◽  
Song WANG ◽  
...  
Keyword(s):  
Microfluidic Chip ◽  
Digital Microfluidic

An Enrichment Method for Bio-samples Based on Circular Injection on a Microfluidic Chip

2013 ◽  
Vol 40 (11) ◽  
pp. 1668-1673
Author(s):  
Min DU ◽  
Xiong-Ying YE ◽  
Jin-Yang FENG ◽  
Zeng-Shuai MA ◽  
Zhao-Ying ZHOU
Keyword(s):  
Microfluidic Chip ◽  
Enrichment Method

An enzyme reactor based on aptamer modified microfluidic chip for protein analysis

2013 ◽  
Vol 30 (11) ◽  
pp. 1127-1132 ◽  
Author(s):  
Peng XIAO ◽  
Dalei LI ◽  
Yan MAN ◽  
Lina GENG ◽  
Xuefei LU ◽  
...  
Keyword(s):  
Microfluidic Chip ◽  
Protein Analysis ◽  
Enzyme Reactor

scholarly journals Broadband spectroscopy of astrophysical ice analogues

2019 ◽  
Vol 629 ◽  
pp. A112 ◽  
Author(s):  
B. M. Giuliano ◽  
A. A. Gavdush ◽  
B. Müller ◽  
K. I. Zaytsev ◽  
T. Grassi ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Time Domain ◽  
Complex Refractive Index ◽  
Far Infrared ◽  
Infrared Region ◽  
Thz Radiation ◽  
The Real ◽  
Thz Range ◽  
The Time Domain

Context. Reliable, directly measured optical properties of astrophysical ice analogues in the infrared and terahertz (THz) range are missing from the literature. These parameters are of great importance to model the dust continuum radiative transfer in dense and cold regions, where thick ice mantles are present, and are necessary for the interpretation of future observations planned in the far-infrared region. Aims. Coherent THz radiation allows for direct measurement of the complex dielectric function (refractive index) of astrophysically relevant ice species in the THz range. Methods. We recorded the time-domain waveforms and the frequency-domain spectra of reference samples of CO ice, deposited at a temperature of 28.5 K and annealed to 33 K at different thicknesses. We developed a new algorithm to reconstruct the real and imaginary parts of the refractive index from the time-domain THz data. Results. The complex refractive index in the wavelength range 1 mm–150 μm (0.3–2.0 THz) was determined for the studied ice samples, and this index was compared with available data found in the literature. Conclusions. The developed algorithm of reconstructing the real and imaginary parts of the refractive index from the time-domain THz data enables us, for the first time, to determine the optical properties of astrophysical ice analogues without using the Kramers–Kronig relations. The obtained data provide a benchmark to interpret the observational data from current ground-based facilities as well as future space telescope missions, and we used these data to estimate the opacities of the dust grains in presence of CO ice mantles.

scholarly journals Microfluidic Chip for Detection of Fungal Infections

ACS Omega ◽  
2019 ◽  
Vol 4 (4) ◽  
pp. 7474-7481 ◽  
Author(s):  
Waseem Asghar ◽  
Mazhar Sher ◽  
Nida S. Khan ◽  
Jatin M. Vyas ◽  
Utkan Demirci
Keyword(s):  
Microfluidic Chip ◽  
Fungal Infections

scholarly journals An LED-Driven AuNPs-PDMS Microfluidic Chip and Integrated Device for the Detection of Digital Loop-Mediated Isothermal DNA Amplification

Micromachines ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 177 ◽  
Author(s):  
Zengming Zhang ◽  
Shuhao Zhao ◽  
Fei Hu ◽  
Guangpu Yang ◽  
Juan Li ◽  
...  
Keyword(s):  
Nucleic Acids ◽  
Microfluidic Chip ◽  
Cross Flow ◽  
Flow Channel ◽  
Isothermal Amplification ◽  
Fluorescent Detection ◽  
Lamp Method ◽  
Biological Studies ◽  
Micro Cavity ◽  
Integrated Device

The sensitive quantification of low-abundance nucleic acids holds importance for a range of clinical applications and biological studies. In this study, we describe a facile microfluidic chip for absolute DNA quantifications based on the digital loop-mediated isothermal amplification (digital LAMP) method. This microfluidic chip integrates a cross-flow channel for droplet generation with a micro-cavity for droplet tiling. DNA templates in the LAMP reagent were divided into ~20,000 water-in-oil droplets at the cross-flow channel. The droplets were then tiled in the micro-cavity for isothermal amplification and fluorescent detection. Different from the existing polydimethylsiloxane (PDMS) microfluidic chips, this study incorporates gold nanoparticles (AuNPs) into PDMS substrate through silica coating and dodecanol modification. The digital LAMP chip prepared by AuNPs-PDMS combines the benefits of the microstructure manufacturing performance of PDMS with the light-to-heat conversion advantages of AuNPs. Upon illumination with a near infrared (NIR) LED, the droplets were stably and efficiently heated by the AuNPs in PDMS. We further introduce an integrated device with a NIR heating unit and a fluorescent detection unit. The system could detect HBV (hepatitis B virus)-DNA at a concentration of 1 × 101 to 1 × 104 copies/μL. The LED-driven digital LAMP chip and the integrated device; therefore, demonstrate high accuracy and excellent performance for the absolute quantification of low-abundance nucleic acids, showing the advantages of integration, miniaturization, cost, and power consumption.

Passive micromixer integration with a microfluidic chip for calcium assay based on the arsenazo III method

2011 ◽  
Vol 5 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Yuwadee Boonyasit ◽  
Thitima Maturos ◽  
Assawapong Sappat ◽  
Apichai Jomphoak ◽  
Adisorn Tuantranont ◽  
...  
Keyword(s):  
Microfluidic Chip ◽  
Arsenazo Iii ◽  
Passive Micromixer

scholarly journals Easy-to-Use Osmosis-Based Microfluidic Chip for Protein Crystallization: Application to a Monoclonal Antibody

2021 ◽  
Author(s):  
Sandy Morais ◽  
Gérald Clisson ◽  
Teresa Fina Mastropietro ◽  
Maria L. Briuglia ◽  
Joop H. ter Horst ◽  
...  
Keyword(s):  
Monoclonal Antibody ◽  
Microfluidic Chip ◽  
Protein Crystallization
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