PMID- 28788546
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20201001
IS  - 1996-1944 (Print)
IS  - 1996-1944 (Electronic)
IS  - 1996-1944 (Linking)
VI  - 7
IP  - 3
DP  - 2014 Mar 5
TI  - Nanocomposites Polarizing by Absorption: Dichroism in the Near-Infrared Region 
      (NIR).
PG  - 1899-1911
LID - 10.3390/ma7031899 [doi]
AB  - We describe the preparation of nanocomposites which exhibit dichroism in the near 
      infrared region (NIR). These materials consist of crosslinked 
      poly(dimethylsiloxane) (PDMS) and gold nanoparticles, coated with 1-dodecanethiol 
      or tert-tetradecanethiol. The alkanethiols improve dispersibility of the gold 
      particles, and accordingly composites were manufactured by diffusion of the 
      particles into swollen self-supporting PDMS elastomer films. After drying, the 
      films were exposed to solvents for one minute, stretched in wet state, dried 
      again and annealed. This procedure led to formation of oriented linear gold 
      particle assemblies within stretched polymer. If the aspect ratio of the particle 
      assemblies is high, the absorption of polarized light in the NIR region is 
      expected to depend on the angle between the polarization plane and the 
      orientation direction of the particle assemblies, and this was observed to be the 
      case.
FAU - Bonderer, Lorenz
AU  - Bonderer L
AD  - Department of Materials, Eidgenossische Technische Hochschule (ETH) Zurich, 
      Wolfgang‑Pauli‑Strasse 10, Zurich CH-8093, Switzerland. lorenz@bonderer.ch.
FAU - Uhlenhaut, Dirk I
AU  - Uhlenhaut DI
AD  - Department of Materials, Eidgenossische Technische Hochschule (ETH) Zurich, 
      Wolfgang‑Pauli‑Strasse 10, Zurich CH-8093, Switzerland. 
      dirk.uhlenhaut@alumni.ethz.ch.
FAU - Smith, Paul
AU  - Smith P
AD  - Department of Materials, Eidgenossische Technische Hochschule (ETH) Zurich, 
      Wolfgang‑Pauli‑Strasse 10, Zurich CH-8093, Switzerland. paul.smith@mat.ethz.ch.
FAU - Caseri, Walter
AU  - Caseri W
AD  - Department of Materials, Eidgenossische Technische Hochschule (ETH) Zurich, 
      Wolfgang‑Pauli‑Strasse 10, Zurich CH-8093, Switzerland. 
      walter.caseri@mat.ethz.ch.
LA  - eng
PT  - Journal Article
DEP - 20140305
PL  - Switzerland
TA  - Materials (Basel)
JT  - Materials (Basel, Switzerland)
JID - 101555929
PMC - PMC5453250
OTO - NOTNLM
OT  - alkanethiols
OT  - dichroism
OT  - elastomers
OT  - gold nanoparticles
OT  - nanocomposites
OT  - near infrared
OT  - optical properties
OT  - poly(dimethylsiloxane)
OT  - polymers
OT  - surface modification
COIS- The authors declare no conflict of interest.
EDAT- 2014/03/05 00:00
MHDA- 2014/03/05 00:01
PMCR- 2014/03/05
CRDT- 2017/08/10 06:00
PHST- 2014/01/15 00:00 [received]
PHST- 2014/02/21 00:00 [revised]
PHST- 2014/02/25 00:00 [accepted]
PHST- 2017/08/10 06:00 [entrez]
PHST- 2014/03/05 00:00 [pubmed]
PHST- 2014/03/05 00:01 [medline]
PHST- 2014/03/05 00:00 [pmc-release]
AID - ma7031899 [pii]
AID - materials-07-01899 [pii]
AID - 10.3390/ma7031899 [doi]
PST - epublish
SO  - Materials (Basel). 2014 Mar 5;7(3):1899-1911. doi: 10.3390/ma7031899.