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1. Disentangling the effects of polymer coatings on silver nanoparticle agglomeration, dissolution, and toxicity to determine mechanisms of nanotoxicity
Published: 9/1/2012
Authors: Justin M Zook, Melissa Danielle Halter, Danielle Cleveland, Stephen E Long
Abstract: Silver nanoparticles (AgNPs) are frequently coated by a variety of polymers, which may affect various intertwined mechanisms of toxicity, including agglomeration and dissolution rate. Here, we measure how citrate, dextran, poly(ethylene glycol) (PEG ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908497

2. Effects of temperature, acyl chain length, and flow-rate ratio on liposome formation and size in a microfluidic hydrodyanmic focusing device
Published: 3/21/2010
Authors: Justin M Zook, Wyatt N Vreeland
Abstract: Microfluidic hydrodynamic focusing of an alcohol/lipid mixture into a narrow fluid stream by two oblique buffer streams provides a controlled and reproducible method of forming phospholipid bilayer vesicles (i.e., liposomes) with relatively monodispe ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903474

3. International Interlaboratory Study Comparing Single Organism 16S rRNA Sequencing Data: Going Beyond Consensus Sequence Comparisons
Published: 3/5/2015
Authors: Nathanael D Olson, Justin M Zook, Steven P Lund, Fabiola Rojas-Cornejo, Jim Huggett, Jayne B Morrow
Abstract: The Consultative Committee for Amount of Substance established a working group to advance the metrology of microbial identification and quantification. This study represents the initial step towards international comparability and measurement as ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=915125

4. Magnetic connectors for microfluidic applications
Published: 1/1/2010
Authors: Francisco Javier Atencia, Gregory A Cooksey, Andreas Jahn, Justin M Zook, Wyatt N Vreeland, Laurie E Locascio
Abstract: We present a new type of connector based on a simple idea: using a ring magnet on one side of the microfluidic chip and a disc magnet on the other side to provide the interfacial force necessary to provide a sealed connection between tubing or needle ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903395

5. Measuring agglomerate size distribution and dependence of localized surface plasmon resonance absorbance on gold nanoparticle agglomerate size using analytical ultracentrifugation
Published: 9/3/2011
Authors: Justin M Zook, Vinayak Rastogi, Robert I. MacCuspie, Athena M Keene, Jeffrey A Fagan
Abstract: Nanoparticles frequently agglomerate when dispersed into relevant biological and environmental media, with the resulting change to the effective size distribution dramatically affecting the potential nanotoxicity and the absorbance for biosensor ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=908878

6. Measuring silver nanoparticle dissolution in complex biological and environmental matrices using UV/visible absorbance measurements
Series: Special Publication (NIST SP)
Report Number: 1200-13
Published: 6/3/2015
Authors: Justin M Zook, Robert MacCuspie, Stephen E Long, Elijah J Petersen
Abstract: This special publication is one in a series stemming from the National Nanotechnology Initiative (NNI) Nano-EHS Research Strategy which identified Nanomaterial Measurement Infrastructure as one of the essential areas of research needed in order t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917792

7. Measuring silver nanoparticle dissolution in complex biological and environmental matrices using UV-Visible absorbance
Published: 8/2/2011
Authors: Justin M Zook, Stephen E Long, Danielle Cleveland, Carly Lay Geronimo, Robert I. MacCuspie
Abstract: Distinguishing the toxic effects of nanoparticles (NPs) themselves from the well-studied toxic effects of their ions is a critical but challenging measurement for nanotoxicity studies and regulation. This measurement is especially difficult for silv ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=907804

8. Nanomaterial Toxicity: Emerging Standards and Efforts to Support Standards Development
Published: 2/1/2011
Authors: Laurie E Locascio, Vytautas Reipa, Justin M Zook, Richard C. Pleus
Abstract: For the first time in the history of industrialization, nanotechnology offers the unique opportunity to consider material safety ahead of its full implementation. Many scientists around the world have been motivated by this and are working on develo ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905246

9. Next-generation Sequencing: Guidance for the Translation from Research to Clinical Applications
Published: 11/8/2012
Authors: Justin M Zook, Amy Gargis, Lisa Kalman, Ira Lubin
Abstract: We would like to draw your readers‰ attention to the Next-generation Sequencing: Standardization of Clinical Testing (Nex-StoCT) guidelines, which represent an initial step toward ensuring that the results derived from next-generation sequencing (N ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=910560

10. Reliable preparation of nanoparticle agglomerates of different sizes in cell culture media
Series: Special Publication (NIST SP)
Report Number: 1200-14
Published: 6/3/2015
Authors: Justin M Zook, Robert MacCuspie, John T Elliott, Elijah J Petersen
Abstract: This special publication is one in a series stemming from the National Nanotechnology Initiative (NNI) Nano-EHS Research Strategy which identified Nanomaterial Measurement Infrastructure as one of the essential areas of research needed in order t ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=917800



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