Literature DB >> 26435685

Substrate Topography Guides Pore Morphology Evolution in Nanoporous Gold Thin Films.

Christopher A R Chapman1, Pallavi Daggumati2, Shannon C Gott3, Masaru P Rao4, Erkin Seker2.   

Abstract

This paper illustrates the effect of substrate topography on morphology evolution in nanoporous gold (np-Au) thin films. One micron-high silicon ridges with widths varying between 150 nm to 50 µm were fabricated and coated with 500 nm-thick np-Au films obtained by dealloying sputtered gold-silver alloy films. Analysis of scanning electron micrographs of the np-Au films following dealloying and thermal annealing revealed two distinct regimes where the ratio of film thickness to ridge width determines the morphological evolution of np-Au films.

Entities:  

Keywords:  annealing; dealloying; fracture; microfabrication; nanoporous material

Year:  2016        PMID： 26435685      PMCID： PMC4587536          DOI： 10.1016/j.scriptamat.2015.07.039

Source DB:  PubMed          Journal:  Scr Mater        ISSN： 1359-6462            Impact factor:   5.611


  14 in total

1.  Evolution of nanoporosity in dealloying.

Authors:  J Erlebacher; M J Aziz; A Karma; N Dimitrov; K Sieradzki
Journal:  Nature       Date:  2001-03-22       Impact factor: 49.962

2.  Ductile-brittle transition in random porous Au.

Authors: 
Journal:  Phys Rev Lett       Date:  1992-02-24       Impact factor: 9.161

3.  Nanoporous gold: a new material for catalytic and sensor applications.

Authors:  Arne Wittstock; Jürgen Biener; Marcus Bäumer
Journal:  Phys Chem Chem Phys       Date:  2010-08-31       Impact factor: 3.676

4.  Volume change during the formation of nanoporous gold by dealloying.

Authors:  S Parida; D Kramer; C A Volkert; H Rösner; J Erlebacher; J Weissmüller
Journal:  Phys Rev Lett       Date:  2006-07-20       Impact factor: 9.161

5.  Detection of free prostate specific antigen (fPSA) on a nanoporous gold platform.

Authors:  Olga V Shulga; Dan Zhou; Alexei V Demchenko; Keith J Stine
Journal:  Analyst       Date:  2008-01-07       Impact factor: 4.616

6.  Molecular release from patterned nanoporous gold thin films.

Authors:  Ozge Kurtulus; Pallavi Daggumati; Erkin Seker
Journal:  Nanoscale       Date:  2014-06-21       Impact factor: 7.790

7.  Photothermal laser microsintering of nanoporous gold.

Authors:  Lina Schade; Steffen Franzka; Mareike Mathieu; Monika M Biener; Jürgen Biener; Nils Hartmann
Journal:  Langmuir       Date:  2014-06-11       Impact factor: 3.882

8.  Effect of nanoporous gold thin film morphology on electrochemical DNA sensing.

Authors:  Pallavi Daggumati; Zimple Matharu; Erkin Seker
Journal:  Anal Chem       Date:  2015-04-30       Impact factor: 6.986

9.  Microfabrication of nanoporous gold patterns for cell-material interaction studies.

Authors:  Pallavi Daggumati; Ozge Kurtulus; Christopher Abbott Reece Chapman; Damla Dimlioglu; Erkin Seker
Journal:  J Vis Exp       Date:  2013-07-15       Impact factor: 1.355

10.  Electrochemical properties of nanostructured porous gold electrodes in biofouling solutions.

Authors:  Jay Patel; Logudurai Radhakrishnan; Bo Zhao; Badharinadh Uppalapati; Rodney C Daniels; Kevin R Ward; Maryanne M Collinson
Journal:  Anal Chem       Date:  2013-11-18       Impact factor: 6.986
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  1 in total

1.  Mechanisms of Reduced Astrocyte Surface Coverage in Cortical Neuron-Glia Co-cultures on Nanoporous Gold Surfaces.

Authors:  Christopher A R Chapman; Hao Chen; Marianna Stamou; Pamela J Lein; Erkin Seker
Journal:  Cell Mol Bioeng       Date:  2016-05-31       Impact factor: 2.321
  1 in total

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