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You searched on: Topic Area: Nanotechnology

Displaying records 71 to 80 of 189 records.
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71. Tumor Necrosis Factor Interaction with Gold Nanoparticles
Topic: Nanotechnology
Published: 3/14/2012
Authors: De-Hao D. Tsai, Sherrie R. Elzey, Frank W DelRio, Robert I. MacCuspie, Suvajyoti S. Guha, Michael Russel Zachariah, Athena M Keene, Jeffrey D Clogston, Vincent A Hackley
Abstract: We report on a systematic investigation of molecular conjugation of tumor necrosis factor protein-α (TNF) onto gold nanoparticles (AuNPs) and the subsequent binding behavior to its antibody (anti-TNF). We employ a combination of physical and spe ...

72. Electrospray ‹ Differential Mobility Analysis as an Orthogonal Tool to Size Exclusion Chromatography for Characterization of Protein Aggregates
Topic: Nanotechnology
Published: 3/12/2012
Authors: Suvajyoti S. Guha, Joshua R. Wayment, Michael J Tarlov, Michael Russel Zachariah
Abstract: The biopharmaceutical industry characterizes and quantifies aggregation of protein therapeutics using multiple analytical techniques to cross validate results. Here we demonstrate the use of electrospray-differential mobility analysis (ES-DMA), a gas ...

73. Characterizing Equilibrium in Epitaxial Growth
Topic: Nanotechnology
Published: 2/20/2012
Authors: Paul N. Patrone, Russel Caflisch, Dionisios Margetis
Abstract: Using a kinetic model of epitaxial growth, we describe how geometry controls kinetic pathways through which external deposition influences the state of a vicinal surface. The state of the surface is determined by three key, adjustable parameters: th ...

74. Quantitative Measurements of the Size Scaling of Linear and Circular DNA in Nanofluidic Slitlike Confinement
Topic: Nanotechnology
Published: 2/14/2012
Authors: Elizabeth A Strychalski, Jon C Geist, Michael Gaitan, Laurie E Locascio, Samuel M Stavis
Abstract: Quantitative size measurements of single linear and circular DNA molecules in nanofluidic slitlike confinement are reported. A novel experimental method using DNA entropophoresis down a nanofluidic staircase implemented comprehensive variation of sl ...

75. Nanometrology Using Through-Focus Scanning Optical Microscopy Method
Topic: Nanotechnology
Published: 12/21/2011
Authors: Ravikiran Attota, Richard M Silver
Abstract: We present an initial review of a novel through-focus scanning optical microscopy (TSOM) imaging method that produces nanometer dimensional measurement sensitivity using a conventional bright-field optical microscope. In the TSOM method a target is ...

76. Feedback Control of Optically Trapped Particles
Topic: Nanotechnology
Published: 12/17/2011
Authors: Jason John Gorman, Arvind Kumar Balijepalli, Thomas W LeBrun
Abstract: Optical trapping is a method for manipulating micro- and nanoscale particles that is widely used in biophysics and colloid science, among other areas. This method uses optical forces to confine the position of a particle to a localized region, which ...

77. MOSFETs made from GaN nanowires with fully conformal cylindrical gates
Topic: Nanotechnology
Published: 12/2/2011
Authors: Paul Timothy Blanchard, Kristine A Bertness, Todd E Harvey, Aric Warner Sanders, Norman A Sanford, Steven M. George, Dragos Seghete
Abstract: We report novel metal-oxide-semiconductor field effect transistors (MOSFETs) based on individual gallium nitride (GaN) nanowires with fully conformal cylindrical gates. The W/Al^d2^O^d3^ gates were deposited by atomic layer deposition. Reverse-bi ...

78. Spectral Line-by-Line Pulse Shaping of On-Chip Microresonator Frequency Combs
Topic: Nanotechnology
Published: 12/1/2011
Authors: Fahmida Ferdous, Houxun H. Miao, Daniel E. Leaird, Kartik A Srinivasan, Jian Wang, Lei Chen, Leo Tom Varghese, Andrew M Weiner
Abstract: We report, for the first time to the best of our knowledge, spectral phase characterization and line-by-line pulse shaping of an optical frequency comb generated by nonlinear wave mixing in a micro-ring resonator. The comb is compressed to a train o ...

79. Gallium nitride nanowires achieve crystalline perfection
Topic: Nanotechnology
Published: 10/25/2011
Authors: Kristine A Bertness, Norman A Sanford, John B. Schlager
Abstract: A new method of growing a common semiconductor provides an avenue for fabricating perfect crystals in a form that takes advantage of their unique optical, electrical, and mechanical properties.

80. Far-field superfocusing with optical fiber based surface plasmonic lens made of nanoscale concentric annular slits
Topic: Nanotechnology
Published: 9/30/2011
Authors: Yuxiang Liu, Hua Xu, Felix Stief, Nikolai B Zhitenev, Miao Yu
Abstract: We present experimental demonstration of three-dimensional superfocusing by using an optical fiber based surface plasmonic (SP) lens with nanoscale concentric annular slits. To the best of our knowledge, this is the first time that a far-field, sub-d ...

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