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You searched on: Author: Donald Atha

Displaying records 1 to 10 of 32 records.
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1. Functionalization-Dependent Induction of Cellular Survival Pathways by CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial Cells
Published: 9/5/2013
Authors: Amber Nagy, Jennifer A Hollingsworth, Bin Hu, Andrea Steinbruck, Peter C. Stark, Cristina Rios Valdez, Momchilo Vuyisich, Michael H. Stewart, Donald H Atha, Bryant C Nelson, Rashi Iyer
Abstract: Quantum dots (QDs) are semiconductor nanocrystals exhibiting unique optical properties which can be exploited for many practical applications ranging from photovoltaics to biomedical imaging and drug delivery. They are increasingly manufactured in la ...

2. NIST Gold Nanoparticle Reference Materials Do Not Induce Oxidative DNA Damage
Published: 2/1/2013
Authors: Bryant C Nelson, Donald H Atha, John T Elliott, Bryce J. Marquis, Elijah J Petersen, Danielle Cleveland, Stephanie S Watson, I-Hsiang Tseng, Andrew Dillon, Melissa Theodore, Joany Jackman
Abstract: Well-characterized, nanoparticle reference materials are urgently needed for nanomaterial toxicity studies. The National Institute of Standards and Technology has developed three gold nanoparticle (AuNP) reference materials (10 nm, 30 nm, 60 nm) to ...

3. Copper oxide nanoparticle mediated DNA damage in terrestrial plant models
Published: 12/22/2011
Authors: Bryant C Nelson, Donald H Atha, Elijah J Petersen, Huanhua Wang, Danielle Cleveland, Richard D Holbrook, Pawel Jaruga, M Miral Dizdar, Baoshan Xing
Abstract: Engineered nanoparticles, due to their unique electrical, mechanical and catalytic properties, are presently found in many commercial products and will be intentionally or inadvertently released at increasing concentrations into the natural environme ...

4. Improved Methods and Standards for Telomerase Detection: Quantitative Histopathology Using Antibody Staining
Published: 10/1/2009
Authors: J P. Jakupciak, Nathan D. Gallant, A H Smith, Matthew Becker, Alessandro Tona, Donald H Atha
Abstract: The enzyme telomerase is expressed in 85% to 90% of all human cancers, but not in normal, non-stem cell somatic tissues at detectable levels. Clinical studies using indirect measurements, like telomerase activity assays, have demonstrated an associa ...

5. Improved methods and standards for telomerase detection: quantitative histopathology using antibody staining
Published: 10/1/2009
Authors: J P. Jakupciak, Nathan D. Gallant, Matthew Becker, A H Smith, Alessandro Tona, Donald H Atha

6. Conformational analysis of the telomerase RNA pseudoknot hairpin by Raman spectroscopy
Published: 1/1/2007
Authors: Vytautas Reipa, G. Niaura, Donald H Atha

7. Real-time telomerase assay of less-invasively collected esophageal cell samples
Published: 11/28/2006
Authors: Brenna M McGruder, Donald H Atha, Wendy Wang, Konrad Huppi, Wen-Qiang Wei, Christian C Abnet, You-Lin Qiao, Sanford M Dawsey, Philip R Taylor, J P. Jakupciak

8. Structural Analysis of the Telomerase RNA Pseudoknot Domain by Raman Spectroscopy
Published: 3/1/2006
Authors: Donald H Atha, G Niaura, Vytautas Reipa
Abstract: We have measured the Raman band intensities and frequencies of two 30-mer ribonucleotides that represent the wild type (WT) and dyskeratosis mutant GC (107-108) AG structures of the pseudoknot hairpin region of human telomerase RNA. We have used the ...

9. Preparation and characterization of candidate reference materials for telomerase assays
Published: 8/1/2005
Authors: J P. Jakupciak, Peter E. Dr. Barker, W. Wang, Sudhir Srivastava, Donald H Atha

10. Standards for Validation of Cancer Biomarkers
Published: 4/2/2005
Authors: Catherine D. O'Connell, Donald H Atha, J P. Jakupciak
Abstract: Over the past 10 years, DNA testing to identify disease associated mutations and specific organisms, which represent public health and safety concerns, have become major targets for laboratory testing. RNA testing is also emerging for gene expressio ...

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  • SP 250-XX: Calibration Services
  • SP 260-XX: Standard Reference Materials
  • SP 300-XX: Precision Measurement and Calibration
  • SP 400-XX: Semiconductor Measurement Technology
  • SP 480-XX: Law Enforcement Technology
  • SP 500-XX: Computer Systems Technology
  • SP 700-XX: Industrial Measurement Series
  • SP 800-XX: Computer Security Series
  • SP 823-XX: Integrated Services Digital Network Series