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  Posters

Isolation, Identification, and Determination of Designer Anabolic Steroids Commonly Found in Dietary Supplements
Sarah E. Voelker, M.S.; Travis M. Falconer, Ph.D.; Jonathan J. Litzau; Mary B. Jones; Lisa M. Lorenz

A general analytical approach in identifying emerging steroid-like compounds is presented, including analysis by GC-MS, LC-MS, and/or HPLC-UV. Isolation of unknown compounds was achieved by high performance liquid chromatography with fraction collection. Isolated compounds were characterized by Nuclear Magnetic Resonance spectroscopy and high resolution accurate mass-mass spectrometry to elucidate their structure.

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Purification of Synthetic Oligodeoxynucleotides via Catching by Polymerization
Suntara Fueangfung, Shiyue Fang

This poster describes new simple methods for oligodeoxynucleotide purification without chromotography.

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Microfluidic chips with microscale traps for cancer cells study by confocal laser scanning microscopy
K.I. Belousov (1),, I.V. Kukhtevich (1,2), A.S. Bukatin (2,3), A.A. Evstrapov (1,2,3)

In this work, microfluidic chip with integrated microscale hydrodynamic traps for fixation of cancer cells in native state to study by confocal laser scanning microscopy in the chip’s chamber was designed, fabricated and tested.

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Direct On-chip Storage and Release of Liquid Reagents for Diagnostic Lab-on-a-Chip Devices
Daniel Czurratis*, Thomas Brettschneider*, Yvonne Beyl*, Sven Zinober*, Franz Lärmer*, Roland Zengerle**

We present a direct on-chip storage and release of liquid reagents for diagnostic lab-on-a-chip devices. Reagent release is pressure driven and realized by braking up a barrier film through a deflection of a flexible membrane.

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Polymerized Poly(ethylene glycol) Diacrylate Microfluidic Membrane Valves
Chad I. Rogers, Joseph B. Oxborrow, Long-Fang Tsai, Gregory P. Nordin, and Adam T. Woolley

Polymerized poly(ethylene glycol) diacrylate (poly-PEGDA) was fabricated into pneumatically controlled, non-elastomeric membrane valves as a nonspecific adsorption resistant alternative to polydimethylsiloxane valves. Temporal response, valve closure, and long-term durability of these poly-PEGDA valves were evaluated.

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Polymerized Poly(ethylene glycol) Diacrylate Microfluidic Membrane Valves
Chad I. Rogers, Joseph B. Oxborrow, Long-Fang Tsai, Gregory P. Nordin, and Adam T. Woolley

Polymerized poly(ethylene glycol) diacrylate (poly-PEGDA) was fabricated into pneumatically controlled, non-elastomeric membrane valves as a nonspecific adsorption resistant alternative to polydimethylsiloxane valves. Temporal response, valve closure, and long-term durability of these poly-PEGDA valves were evaluated.

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Polymerized Poly(ethylene glycol) Diacrylate Microfluidic Membrane Valves
Chad I. Rogers, Joseph B. Oxborrow, Long-Fang Tsai, Gregory P. Nordin, and Adam T. Woolley

Polymerized poly(ethylene glycol) diacrylate (poly-PEGDA) was fabricated into pneumatically controlled, non-elastomeric membrane valves as a nonspecific adsorption resistant alternative to polydimethylsiloxane valves. Temporal response, valve closure, and long-term durability of these poly-PEGDA valves were evaluated.

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Trace Level Analysis of Perchlorate and Bromate in Various Water Matrices using Suppressed Ion Chromatography
Dr. Jay Gandhi, DR. Stuart Procter

Bromate and Perchlorate are ubiquitous analytes in various water matrices and analysis in trace level is a challenge

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ChemoSoft: a new chemometric software for non-chemometricians
Christophe B.Y. Cordella

Professional applications such as those provide by some software editors and free downloadable toolboxes developed for Matlab®, R, Octave or Scilab propose many computation tools. But, to our best knowledge, very few are usable by neophytes or anyone that are not skilled with chemometrics or statistics. ChemoSoft is the first chemometric software designed for non-chemometricians.

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Showing Results 71 - 80 of 1020
Scientific News
Blood Cleanser for Sepsis
Dialysis-like ‘biospleen’ quickly filters bacteria, fungi and toxins.
Scientists Discover Neurochemical Imbalance in Schizophrenia
Researchers discovers that neurons from schizophrenia patients secrete higher amounts of three neurotransmitters.
Building Replacement Kidneys in the Lab
Milestone reached in work to build replacement kidneys in the lab.
Intestinal Bacteria Needed for Strong Flu Vaccine Responses in Mice
Study demonstrate a dependency on gut bacteria for strong immune responses to the seasonal flu and inactivated polio vaccines.
Stanford Engineers Aim to Connect the World with Ant-sized Radios
Costing just pennies to make, tiny radios-on-a-chip are designed to serve as controllers or sensors for the 'Internet of Things.'
Diabetes Researchers Find Faster Way to Create Insulin-producing Cells
A new protocol can turn stem cells into reliable, insulin-producing cells in about six weeks.
Genetic Testing for Prostate Cancer
Genetic testing can identify men at six-fold increased risk of prostate cancer.
Novel Method for Portable Detection of ‘Bath Salts’
Despite being outlawed in 2012 in the U.S., the synthetic drugs known as “bath salts” are still readily available in some retail shops, on the Internet and on the streets.
Mass Spectrometry in Your Hand
Electrospray arrays can dramatically downsize systems and costs for onsite chemical analysis and many other applications.
Continuous Flow Production of Metal-Organic Frameworks
An optimal continuous flow chemistry concept for the production of over kilogram per day of MOFs has been devised.
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