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231223s2004 xx ||||| 00| ||eng c |
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|a pubmed24n0516.xml
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|a (DE-627)NLM154846643
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|a (NLM)15835119
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Esumi, Kunio
|e verfasserin
|4 aut
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| 245 |
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|a Antioxidant action by gold-PAMAM dendrimer nanocomposites
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| 264 |
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|c 2004
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 20.06.2005
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|a Date Revised 26.10.2019
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|a published: Print
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|a Citation Status MEDLINE
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|a Gold-dendrimer nanocomposites were prepared in the presence of poly(amidoamine) (PAMAM) dendrimer (generation 3, 3.5, 5, and 5.5) via reduction of HAuCl4 with sodium borohydride. The average particle size of the gold nanoparticles was independent of the dendrimer concentration, ranging between 3.0 and 4.3 nm in diameter. The catalytic activities of the gold-dendrimer nanocomposites upon elimination of hydroxyl radicals formed in an H2O2/FeSO4 system were examined using a spin-trapping method. The gold-dendrimer nanocomposites exhibited high catalytic activities which were hardly affected by the concentration and the generation of the dendrimer except PAMAM dendrimer 3.5. The highest activity for the gold-PAMAM dendrimer 3.5 nanocomposites was 85 times that of ascorbic acid
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|a Letter
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|a Research Support, Non-U.S. Gov't
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|a Antioxidants
|2 NLM
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| 650 |
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|a Organometallic Compounds
|2 NLM
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| 650 |
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|a Polyamines
|2 NLM
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| 650 |
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|a Gold
|2 NLM
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| 650 |
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|a 7440-57-5
|2 NLM
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| 700 |
1 |
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|a Houdatsu, Hiroko
|e verfasserin
|4 aut
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|a Yoshimura, Tomokazu
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 20(2004), 7 vom: 30. März, Seite 2536-8
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:20
|g year:2004
|g number:7
|g day:30
|g month:03
|g pages:2536-8
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|a AR
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|d 20
|j 2004
|e 7
|b 30
|c 03
|h 2536-8
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