PMID- 19894686
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100324
LR  - 20100126
IS  - 1520-5827 (Electronic)
IS  - 0743-7463 (Linking)
VI  - 26
IP  - 3
DP  - 2010 Feb 2
TI  - Hybrid systems of silver nanoparticles generated on cellulose surfaces.
PG  - 1996-2001
LID - 10.1021/la902477q [doi]
AB  - A method to produce hybrid systems of cellulose ultrathin films containing 
      immobilized silver nanoparticles (Ag NPs) generated and grown at the surface is 
      presented. Ag NPs were produced via a mild wet chemistry technique on cellulose 
      ultrathin films spin-coated on GaAs substrates and on modified films after 
      grafting of diaminoalkanes activated by N,N'-carbonyldiimidazole. Appended amine 
      groups operate as anchoring centers of the silver NPs enabling selective 
      generation and immobilization of Ag NPs. The different phases of the modification 
      process were followed by Fourier transform infrared spectroscopy (FTIRS) in 
      attenuated total reflection in multiple internal reflections (ATR/MIR), X-ray 
      photoelectron spectroscopy (XPS), and atomic force microscopy (AFM). The 
      generation of NPs is observed even on untreated cellulose surfaces with sizes 
      ranging from 7 to 30 nm but not specifically at the surface. For modified 
      surfaces with diaminoalkanes, higher NP density regions including extensive 
      plates are obtained, which are specifically located at the film extreme surface. 
      The highest NP density is achieved when the NP generation is performed on these 
      modified surfaces in the presence of a carboxylic salt.
FAU - Ferraria, Ana Maria
AU  - Ferraria AM
AD  - Centro de Quimica-Fisica Molecular and Institute of Nanoscience and 
      Nanotechnology, IST, Technical University of Lisbon, Portugal.
FAU - Boufi, Sami
AU  - Boufi S
FAU - Battaglini, Nicolas
AU  - Battaglini N
FAU - Botelho do Rego, Ana Maria
AU  - Botelho do Rego AM
FAU - ReiVilar, Manuel
AU  - ReiVilar M
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Langmuir
JT  - Langmuir : the ACS journal of surfaces and colloids
JID - 9882736
EDAT- 2009/11/10 06:00
MHDA- 2009/11/10 06:01
CRDT- 2009/11/10 06:00
PHST- 2009/11/10 06:00 [entrez]
PHST- 2009/11/10 06:00 [pubmed]
PHST- 2009/11/10 06:01 [medline]
AID - 10.1021/la902477q [doi]
PST - ppublish
SO  - Langmuir. 2010 Feb 2;26(3):1996-2001. doi: 10.1021/la902477q.