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Displaying 601 - 625 of 1612

Applying Thymine Isostere 2,4-Difluoro-5-methylbenzene as an Assignment Tool and Probe of Purine-rich DNA Dynamics Using Proton NMR Spectroscopy

June 30, 2015
Author(s)
Robert G. Brinson, Jennifer T. Miller, Kahn Jason, Stuart F. Le Grice, John P. Marino
Proton assignment of NMR spectra of oligonucleotide duplexes can become difficult with increasing helical length due to cross peak overlap. Here we describe an alternative to 15N and 13C labeling that facilitates assignment via single site substitution

Addiction to MTH1 protein results in intense expression in human breast cancer tissue as measured by liquid chromatography-isotope-dilution tandem mass spectrometry

June 23, 2015
Author(s)
Erdem Coskun, Pawel Jaruga, Ann-Sofie Jemth, Olga Loseva, Leona D. Scanlan, Alessandro Tona, Mark S. Lowenthal, Thomas Helleday, M Miral Dizdar
MTH1 protein sanitizes the nucleotide pool so that modified 2'-deoxynucleoside triphosphates (dNTPs) cannot be used in DNA replication. Cancer cells require MTH1 to avoid incorporation of modified dNTPs resulting in DNA damage mutations and cell death

Performance of a next generation sequencing SNP assay on degraded DNA

May 27, 2015
Author(s)
Katherine Gettings, Kevin M. Kiesler, Peter Vallone
Forensic DNA casework samples are often of insufficient quantity or quality to generate full profiles by conventional DNA typing methods. Amplification of STR loci is inherently limited in samples containing degraded DNA, as the cumulative size of repeat

Validated Open Source Nanofiber Diameter Measurement Tool

April 30, 2015
Author(s)
Nathan A. Hotaling, Kapil Bharti, Haydn Kriel, Carl G. Simon Jr.
Despite the growing use of nanofiber scaffolds for tissue engineering applications, there is not a validated, readily available (commercial or open source) solution for rapid, automated analysis of nanofiber diameter from scanning electron microscope (SEM)

The Art in Science of MicroTAS: the 2014 issue

April 14, 2015
Author(s)
Darwin R. Reyes-Hernandez
For the 7th year in a row the Art in Science award competition, sponsored by Lab on a Chip and the National Institute of Standards and Technology (NIST), took place at the 18th International Conference of Miniaturized Systems for Chemistry and Life

Shape-changing magnetic assemblies as high-sensitivity NMR-readable nanoprobes

April 2, 2015
Author(s)
Gary Zabow, Stephen Dodd, Alan Koretsky
Fluorescent and plasmonic probes have proven invaluable in the life sciences, but function poorly in optically inaccessible regions. Here we present radio-frequency addressable analogs that afford sensing opportunities similar to those of fluorescent

Bioreactor Process Parameter Screening Utilizing a Plackett-Burman Design for a Model Monoclonal Antibody

March 11, 2015
Author(s)
John E. Schiel, Cyrus D. Agarabi, Scott C. Lute, Brittany K. Chavez, Michael T. Boyne, Kurt A. Brorson, Mansoor A. Kahn, Erik K. Read
Consistent high quality antibody yield is a key goal for cell culture bioprocessing. This endpoint is typically achieved in commercial settings through product and process engineering of bioreactor parameters during development. When the process is complex

Quantification of Cells with Specific Phenotypes I: Determination of CD4+ Cell Count per mL in Reconstituted Lyophilized Human PBMC Pre-labelled with Anti-CD4 FITC Antibody

March 10, 2015
Author(s)
Richard Stebbings, Lili Wang, Janet Sutherland, Martin Kammel, Adolfas Gaigalas, M. John, B. Roemer, M. Kuhne, R. J. Schneider, M. Braun, N. Leclere, D. Dikshit, Fatima Abbasi, Gerald Marti, P. Porcedda, M. Sassi, L. Revel, S. K. Kim, D. Marshall, L. Whitby, Jing Wang, V. Ost, M. Vonski, Joerg Neukammer
A surface-labelled lyophilised lymphocyte (sLL) preparation has been developed using human peripheral blood mononuclear cells (PBMC) pre-labelled with a fluorescein isothiocyanate (FITC) conjugated anti-CD4 monoclonal antibody. The sLL preparation is

Proceedings of SPIE

March 4, 2015
Author(s)
Maritoni A. Litorja, Aaron A. Urbas, Yuqin Zong
The fluorescent light detected by a clinical imager is assumed to be proportional to the amount of fluorescent substance present in the sample. Unfortunately, there are many factors that can add or subtract to the light signal directly attributable to the
Displaying 601 - 625 of 1612
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