MEMSuniverse » chemistry http://www.memsuniverse.com A Passion for Creativity & Innovation Tue, 23 Oct 2012 21:57:22 +0000 en-US hourly 1 http://wordpress.org/?v=3.4.2 Time dependence of the fluid velocity field http://www.memsuniverse.com/lab-on-chip/time-dependence-of-the-fluid-velocity-field.html http://www.memsuniverse.com/lab-on-chip/time-dependence-of-the-fluid-velocity-field.html#comments Tue, 02 Mar 2010 14:08:02 +0000 admin http://www.memsuniverse.com/?p=2333 Video related to research article appearing in Lab on a Chip
O. Manneberg, et al. Flow-free transport of cells in microchannels
by frequency-modulated ultrasound
Read the article at http://xlink.rsc.org/?DOI=b816675g

The clip shows the time-dependence of the fluid velocity field, acquired by performing
time-resolved particle image velocimetry (PIV) on the yellow 1-μm beads in the clip
“Flow-free transport and caging of 5-μm beads”. Note that at 5-second intervals, e.g. around 12 and 17
seconds, the fluid velocity increases in the cage due to rapid movement of the caged
aggregate as the frequency jumps back to its lowest value. Additionally, the rapid
transport of aggregates in the inlet channel is also apparent at these times, with a leftward
flow in front of and behind the aggregate and a rightward flow over its sides, as it pushes
through the fluid. The velocity field has been numerically smoothed. The average
velocity field during the full clip is shown in Fig. 4c.
In the first, second and third clips, the chip was actuated by two transducers; one driven
in linear sweeps from 2.60 2.64 MHz at a rate of 0.5 Hz (first clip) or 0.2 Hz (second
and third clips), and the other driven from 6.90 7.00 MHz at a rate of 1 kHz.

Duration : 0:1:38


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/time-dependence-of-the-fluid-velocity-field.html/feed 0 High-Throughput Design of Microfluidics Based on Directed Bacterial Motility http://www.memsuniverse.com/lab-on-chip/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility.html http://www.memsuniverse.com/lab-on-chip/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility.html#comments Mon, 01 Mar 2010 15:19:06 +0000 admin http://www.memsuniverse.com/?p=2330 Real-time DIC video showing rapid orbital revolution
(~3.0 Hz) of a microsphere driven by E. coli (RP9535) in a hybrid structure.

Jason Shear and Bryan Kaehr “High-Throughput Design of Microfluidics Based on Directed Bacterial Motility”
Read the article at: http://xlink.rsc.org/?doi=b908119d

Duration : 0:0:22


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility.html/feed 1 Freezing Pure Water http://www.memsuniverse.com/lab-on-chip/freezing-pure-water.html http://www.memsuniverse.com/lab-on-chip/freezing-pure-water.html#comments Sat, 27 Feb 2010 15:07:09 +0000 admin http://www.memsuniverse.com/?p=2314 Video related to research article appearing in Lab on a Chip
Claudiu A. Stan, et al. A microfluidic apparatus for the study of ice nucleation in supercooled water drops
Read the article at http://xlink.rsc.org/?DOI=b906198c

Duration : 0:0:22


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/freezing-pure-water.html/feed 0 Inkjet formation of unilamellar lipid vesicles for cell-like encapsulation http://www.memsuniverse.com/lab-on-chip/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation.html http://www.memsuniverse.com/lab-on-chip/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation.html#comments Fri, 26 Feb 2010 18:01:03 +0000 admin http://www.memsuniverse.com/?p=2312 Research article from Lab in a Chip, Jeanne C. Stachowiak et al.
Inkjet formation of unilamellar lipid vesicles for cell-like encapsulation
Read the article at
http://xlink.rsc.org/?DOI=B904984C

Duration : 0:0:13


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation.html/feed 0 Phototransistor-based optoelectronic tweezers for dynamic cell manipulation in cell culture media http://www.memsuniverse.com/lab-on-chip/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media.html http://www.memsuniverse.com/lab-on-chip/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media.html#comments Thu, 25 Feb 2010 20:08:12 +0000 admin http://www.memsuniverse.com/?p=2310 Video relates to research article in Lab on a chip

Hsan-yin Hsu et al. “Phototransistor-based optoelectronic tweezers for dynamic cell manipulation in cell culture media”

Read the article at http://xlink.rsc.org/?DOI=b906593h

Duration : 0:0:36


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media.html/feed 0 Nanotechnology’s Big Impact http://www.memsuniverse.com/nanotechnology/chemmatters-episode-1-nanotechnologys-big-impact.html http://www.memsuniverse.com/nanotechnology/chemmatters-episode-1-nanotechnologys-big-impact.html#comments Sun, 13 Dec 2009 22:41:20 +0000 admin http://www.memsuniverse.com/?p=1700 In the first ChemMatters video, we find about why the very smallest machines, known as nanotechnology, hold very big promise. Nanotechnology may help create tiny devices that bring medicine exactly where it needs to go in your body, powerful computers the size of a grain of sand or vital new sources of energy.

ChemMatters, the award-winning magazine for high school chemistry, demystifies chemistry at work in our everyday lives.

Duration : 0:7:16


Related Posts:

]]> http://www.memsuniverse.com/nanotechnology/chemmatters-episode-1-nanotechnologys-big-impact.html/feed 3 SciFinder: Nanotechnology- The Key to Solving the Worlds Energy Question http://www.memsuniverse.com/nanotechnology/scifinder-nanotechnology-the-key-to-solving-the-worlds-energy-question.html http://www.memsuniverse.com/nanotechnology/scifinder-nanotechnology-the-key-to-solving-the-worlds-energy-question.html#comments Thu, 03 Dec 2009 02:22:35 +0000 admin http://www.memsuniverse.com/?p=1669 As we become a more technologically advanced society, we place an ever increasing demand on our natural resources to produce power. Scientists are utilizing the latest advancements in nanotechnology to develop alternative energy sources. SciFinder explores innovative trends, such as carbon nanotube technology, that could help create solutions for the worlds energy question. For more information, visit www.cas.org.

Duration : 0:9:39


Related Posts:

]]> http://www.memsuniverse.com/nanotechnology/scifinder-nanotechnology-the-key-to-solving-the-worlds-energy-question.html/feed 0 Flow free transport and caging of 5 μm beads http://www.memsuniverse.com/lab-on-chip/flow-free-transport-and-caging-of-5-%ce%bcm-beads.html http://www.memsuniverse.com/lab-on-chip/flow-free-transport-and-caging-of-5-%ce%bcm-beads.html#comments Tue, 26 May 2009 22:02:49 +0000 admin http://www.memsuniverse.com/?p=1631 Video related to research article appearing in Lab on a Chip
O. Manneberg, et al. Flow-free transport of cells in microchannels
by frequency-modulated ultrasound
Read the article at http://xlink.rsc.org/?DOI=b816675g

The clip shows flow-free transport and caging of 5-μm beads (green). The yellow beads
are 1-μm tracer particles that are used for tracking the fluid motion. Due to the particlevolume
dependence of the acoustic forces, the smaller beads are not manipulated by
ultrasound at the employed actuation voltage (10 Vpp). Two frames from the clip are
shown in Figs. 4a-b.

Duration : 0:0:37


Related Posts:

]]> http://www.memsuniverse.com/lab-on-chip/flow-free-transport-and-caging-of-5-%ce%bcm-beads.html/feed 0 0 06ml per min each phase full chip view http://www.memsuniverse.com/microfabrication/0-06ml-per-min-each-phase-full-chip-view.html http://www.memsuniverse.com/microfabrication/0-06ml-per-min-each-phase-full-chip-view.html#comments Sat, 16 May 2009 16:12:59 +0000 admin http://www.memsuniverse.com/?p=1629 Video related to research article appearing in Lab on a Chip
Oliver K. Castell, et al. Liquidliquid phase separation: characterisation of a novel device capable of separating particle carrying multiphase flows

Read the article at http://xlink.rsc.org/?DOI=b806946h

Duration : 0:0:10


Related Posts:

]]> http://www.memsuniverse.com/microfabrication/0-06ml-per-min-each-phase-full-chip-view.html/feed 0 Visualisation of Human Whole Blood Pumping http://www.memsuniverse.com/microfluidics/visualisation-of-human-whole-blood-pumping.html http://www.memsuniverse.com/microfluidics/visualisation-of-human-whole-blood-pumping.html#comments Tue, 12 May 2009 15:41:20 +0000 admin http://www.memsuniverse.com/?p=1628 Video related to research from Lab on a Chip.
Article details: Sheng-Hung Chiu and Cheng-Hsien Liu “An air-bubble-actuated micropump for on-chip blood transportation”
Read the article at: http://xlink.rsc.org/?DOI=B900139E

Duration : 0:0:27


Related Posts:

]]> http://www.memsuniverse.com/microfluidics/visualisation-of-human-whole-blood-pumping.html/feed 0