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Formation of Gold N...
Formation of Gold Nanoparticle Size and Density Gradients via Bipolar Electrochemistry
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- Lundgren, Anders, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden,Chalmers, Dept Appl Phys, SE-41296 Gothenburg, Sweden
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- Munktell, Sara, 1987- (författare)
- Uppsala universitet,Strukturkemi
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- Lacey, Matthew, 1986- (författare)
- Uppsala universitet,Strukturkemi
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- Berglin, Mattias, 1970 (författare)
- RISE,Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg,Material och ytteknik,University of Gothenburg, Sweden,SP Tech Res Inst Sweden, Chem Mat & Surfaces, Box 857, SE-50115 Boras, Sweden; Gothenburg Univ, Dept Chem & Mol Biol, Box 462, SE-40530 Gothenburg, Sweden
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- Björefors, Fredrik (författare)
- Uppsala universitet,Strukturkemi
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(creator_code:org_t)
- 2015-11-24
- 2016
- Engelska.
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Ingår i: Chemelectrochem. - : Wiley. - 2196-0216. ; 3:3, s. 378-382
- Relaterad länk:
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http://dx.doi.org/10...
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Bipolar electrochemistry is employed to demonstrate the formation of gold nanoparticle size gradients on planar surfaces. By controlling the electric field in a HAuCl4-containing electrolyte, gold was reduced onto 10 nm diameter particles immobilized on pre-modified thiolated bipolar electrode (BPE) templates, resulting in larger particles towards the more cathodic direction. As the gold deposition was the dominating cathodic reaction, the increased size of the nanoparticles also reflected the current distribution on the bipolar electrode. The size gradients were also combined with a second gradient-forming technique to establish nanoparticle surfaces with orthogonal size and density gradients, resulting in a wide range of combinations of small/large and few/many particles on a single bipolar electrode. Such surfaces are valuable in, for example, cell-material interaction and combinatorial studies, where a large number of conditions are probed simultaneously.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
Nyckelord
- bipolar electrochemistry
- gold nanoparticles
- interfaces
- size gradients
- templated deposition
- electrodes
- arrays
- architecture
- fabrication
- separation
- particles
- architecture
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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