Micro-Electro-Mechanical-Systems (MEMS) » Science http://www.memsuniverse.com A Passion for Creativity & Innovation Mon, 31 Oct 2011 12:36:56 +0000 en hourly 1 http://wordpress.org/?v=3.2.1 Sub-pixel resolving optofluidic microscope for on-chip cell imaging http://www.memsuniverse.com/sub-pixel-resolving-optofluidic-microscope-for-on-chip-cell-imaging/ http://www.memsuniverse.com/sub-pixel-resolving-optofluidic-microscope-for-on-chip-cell-imaging/#comments Wed, 19 Oct 2011 16:23:04 +0000 admin http://www.memsuniverse.com/sub-pixel-resolving-optofluidic-microscope-for-on-chip-cell-imaging/ Sub-pixel resolving, compact (1.5cm x 1.5cm), optofluidic on-chip microscope for on-chip cell imaging.

Developed at the Caltech Biophotonics lab by Guoan Zheng (gazheng@caltech.edu), Seung Ah Lee, Samuel Yang and Changhuei Yang.

Lab on a Chip article:
http://pubs.rsc.org/en/content/articlelanding/2010/lc/c0LC00213E

Duration : 0:1:19


]]> http://www.memsuniverse.com/sub-pixel-resolving-optofluidic-microscope-for-on-chip-cell-imaging/feed/ 0 Time dependence of the fluid velocity field http://www.memsuniverse.com/time-dependence-of-the-fluid-velocity-field/ http://www.memsuniverse.com/time-dependence-of-the-fluid-velocity-field/#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


]]> http://www.memsuniverse.com/time-dependence-of-the-fluid-velocity-field/feed/ 0 High-Throughput Design of Microfluidics Based on Directed Bacterial Motility http://www.memsuniverse.com/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility/ http://www.memsuniverse.com/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility/#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


]]> http://www.memsuniverse.com/high-throughput-design-of-microfluidics-based-on-directed-bacterial-motility/feed/ 1 Freezing Pure Water http://www.memsuniverse.com/freezing-pure-water/ http://www.memsuniverse.com/freezing-pure-water/#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


]]> http://www.memsuniverse.com/freezing-pure-water/feed/ 0 Inkjet formation of unilamellar lipid vesicles for cell-like encapsulation http://www.memsuniverse.com/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation/ http://www.memsuniverse.com/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation/#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


]]> http://www.memsuniverse.com/inkjet-formation-of-unilamellar-lipid-vesicles-for-cell-like-encapsulation/feed/ 0 Phototransistor-based optoelectronic tweezers for dynamic cell manipulation in cell culture media http://www.memsuniverse.com/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media/ http://www.memsuniverse.com/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media/#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


]]> http://www.memsuniverse.com/phototransistor-based-optoelectronic-tweezers-for-dynamic-cell-manipulation-in-cell-culture-media/feed/ 0 00. Introduction – ME 599 http://www.memsuniverse.com/00-introduction-me-599/ http://www.memsuniverse.com/00-introduction-me-599/#comments Wed, 06 Jan 2010 20:02:09 +0000 admin http://www.memsuniverse.com/?p=2161 The course, ME 599: Nanomanufacturing taught by Professor John Hart at the University of Michigan, discusses the properties, synthesis, assembly and applications of nanostructures and nanostructured materials.

Duration : 1:16:22


]]> http://www.memsuniverse.com/00-introduction-me-599/feed/ 0 Bacteria turn tiny gears http://www.memsuniverse.com/bacteria-turn-tiny-gears/ http://www.memsuniverse.com/bacteria-turn-tiny-gears/#comments Wed, 23 Dec 2009 13:53:42 +0000 admin http://www.memsuniverse.com/?p=1805 Swarms of bacteria turn two 380-micron long gears, opening the possibility of building hybrid biological machines at the microscopic scale. Read more at Wired: http://www.wired.com/wiredscience/2009/12/bacterial-micro-machine/#more-15684 or Scientific American: http://www.scientificamerican.com/article.cfm?id=brownian-motion-bacteria

Courtesy Igor Aronson.

Duration : 0:0:21


]]> http://www.memsuniverse.com/bacteria-turn-tiny-gears/feed/ 20 NanoEngineering Supermaterials http://www.memsuniverse.com/nanoengineering-supermaterials/ http://www.memsuniverse.com/nanoengineering-supermaterials/#comments Tue, 15 Dec 2009 00:12:06 +0000 admin http://www.memsuniverse.com/?p=1726 An introduction to Nano-Science, and NanoTechnology and what it means for the information age! Explanations of current Nanotechnology which has been back-engineered from crashed Alien spacecraft.

Theoretical Quasicrystals 11 TIMES HARDER THAN DIAMOND!

http://www.extropedia.org/technology-1/ultrananocrystalline-diamond-synthesis-properties-and-applications

http://www.extropedia.org

Duration : 0:8:22


]]> http://www.memsuniverse.com/nanoengineering-supermaterials/feed/ 25 NanoEngineering Supermaterials http://www.memsuniverse.com/nanoengineering-supermaterials-by-alienscientist/ http://www.memsuniverse.com/nanoengineering-supermaterials-by-alienscientist/#comments Sun, 13 Dec 2009 22:21:20 +0000 admin http://www.memsuniverse.com/?p=1697 An introduction to Nano-Science, and NanoTechnology and what it means for the information age! Explanations of current Nanotechnology which has been back-engineered from crashed Alien spacecraft.

Theoretical Quasicrystals 11 TIMES HARDER THAN DIAMOND!

http://www.extropedia.org/technology-1/ultrananocrystalline-diamond-synthesis-properties-and-applications

http://www.extropedia.org/

Duration : 0:8:22


]]> http://www.memsuniverse.com/nanoengineering-supermaterials-by-alienscientist/feed/ 1