PMID- 22121642
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20120105
LR  - 20190715
IS  - 1533-4880 (Print)
IS  - 1533-4880 (Linking)
VI  - 11
IP  - 7
DP  - 2011 Jul
TI  - Microvalves based on ionic polymer-metal composites for microfluidic application.
PG  - 5975-9
AB  - Simple and highly efficient microvalve systems based on an ionic polymer-metal 
      composite (IPMC) diaphragm actuator have been developed. The microvalve system 
      that was fabricated in this work operates when open and close voltage is applied, 
      due to the phenomena of lithium ion flux and the subsequent electro-osmotic drag 
      of water to the cathode. IPMC was prepared by compositing with platinum 
      nanoparticles on both sides of Nafion thin film. SEM images of the IPMC showed 
      the high density and uniform size distribution of the Pt nanoparticles in the 
      interpenetrating layer to ensure the proper performance of an IPMC actuator. The 
      displacement of the IPMC for the microvalve was measured with a laser 
      displacement meter. The application of open and close voltage made the operation 
      of the valve faster. The fluorescence images of the flow in the fabricated 
      IPMC-based microvalve system showed the successful operation of flow control in 
      the microfluidic channel. The IPMC-based microvalve system shows a potential of 
      IPMC for application as an actuator in microfluidic systems.
FAU - Yun, Ji Sun
AU  - Yun JS
AD  - Department of Chemical and Biomolecular Engineering (BK21 Program), Korea 
      Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic 
      of Korea.
FAU - Yang, Kwang Suk
AU  - Yang KS
FAU - Choi, Nak-Jin
AU  - Choi NJ
FAU - Lee, Hyung-Kun
AU  - Lee HK
FAU - Moon, Seung Eon
AU  - Moon SE
FAU - Kim, Do Hyun
AU  - Kim DH
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
EDAT- 2011/11/30 06:00
MHDA- 2011/11/30 06:01
CRDT- 2011/11/30 06:00
PHST- 2011/11/30 06:00 [entrez]
PHST- 2011/11/30 06:00 [pubmed]
PHST- 2011/11/30 06:01 [medline]
AID - 10.1166/jnn.2011.4459 [doi]
PST - ppublish
SO  - J Nanosci Nanotechnol. 2011 Jul;11(7):5975-9. doi: 10.1166/jnn.2011.4459.