PMID- 20352871
OWN - NLM
STAT- MEDLINE
DCOM- 20100506
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 10
IP  - 1
DP  - 2010 Jan
TI  - Characterization of a self-assembled monolayer based on a calix[4]crown-5 
      derivate: fabrication of a chemical sensor sensitive to calcium.
PG  - 413-20
AB  - The synthesis and self-assembled monolayer (SAM) formation of a calix[4]crown-5 
      derivative are reported. Several techniques, including electrochemistry, atomic 
      force microscopy (AFM), Time-of-flight secondary ion mass spectrometry (ToF-SIMS) 
      and contact angle measurements have been applied to characterise the monolayer 
      film designed for chemical sensor applications. The recognition properties of 
      this SAM for metal cations has been investigated using impedance spectroscopy 
      (IS) showing an electrochemical response proportional to calcium ion 
      concentration in the range from 10(-7) M to 10(-2) M. This response is related to 
      microscopic changes at the gold surface induced by selective binding by the 
      immobilised calixarene.
FAU - Marques de Oliveira, Isabel A
AU  - Marques de Oliveira IA
AD  - Laboratory of Nanobioengineering, Institut de Bioenginyeria de Catalunya, C/Josep 
      Samitier 1-5, 08028 Barcelona, Spain.
FAU - Vocanson, Francis
AU  - Vocanson F
FAU - Uttaro, Jean-Pierre
AU  - Uttaro JP
FAU - Asfari, Zouhair
AU  - Asfari Z
FAU - Mills, Christopher A
AU  - Mills CA
FAU - Samitier, Josep
AU  - Samitier J
FAU - Errachid, Abdelhamid
AU  - Errachid A
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
PL  - United States
TA  - J Nanosci Nanotechnol
JT  - Journal of nanoscience and nanotechnology
JID - 101088195
RN  - 0 (Crown Ethers)
RN  - 0 (calix(4)crown-5)
RN  - 130036-26-9 (Calixarenes)
RN  - SY7Q814VUP (Calcium)
SB  - IM
MH  - Calcium/*analysis
MH  - Calixarenes/*chemistry
MH  - Crown Ethers/*chemistry
MH  - Electric Impedance
MH  - Microscopy, Atomic Force
MH  - Nanostructures/*chemistry
MH  - Nanotechnology/*methods
EDAT- 2010/04/01 06:00
MHDA- 2010/05/07 06:00
CRDT- 2010/04/01 06:00
PHST- 2010/04/01 06:00 [entrez]
PHST- 2010/04/01 06:00 [pubmed]
PHST- 2010/05/07 06:00 [medline]
AID - 10.1166/jnn.2010.1733 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2010 Jan;10(1):413-20. doi: 10.1166/jnn.2010.1733.