Hydrogel-MWCNT nanocomposites: Synthesis, characterization, and heating with radiofrequency fields

Hydrogel nanocomposites are attractive biomaterials for numerous applications including tissue engineering, drug delivery, cancer treatment, sensors, and actuators. Here we present a nanocomposite of multiwalled carbon nanotubes (MWCNT) and temperature responsive N‐isopropylacrylamide hydrogels. The...

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Bibliographic Details
Published in:Journal of applied polymer science 2010-08, Vol.117 (3), p.1813-1819
Main Authors: Satarkar, Nitin S., Johnson, Don, Marrs, Brock, Andrews, Rodney, Poh, Churn, Gharaibeh, Belal, Saito, Kozo, Anderson, Kimberly W., Hilt, J. Zach
Format: Article
Language:English
Subjects:
Applied sciences
Biological and medical sciences
carbon nanotubes
Composites
Drug delivery systems
Exact sciences and technology
Forms of application and semi-finished materials
Heating
Hydrogels
Medical sciences
Nanocomposites
Nanotubes
Polymer industry, paints, wood
Radio frequencies
Radiofrequency
Reproduction
Resultants
Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases
Technology of polymers
Technology. Biomaterials. Equipments
temperature responsive
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Summary:Hydrogel nanocomposites are attractive biomaterials for numerous applications including tissue engineering, drug delivery, cancer treatment, sensors, and actuators. Here we present a nanocomposite of multiwalled carbon nanotubes (MWCNT) and temperature responsive N‐isopropylacrylamide hydrogels. The lower critical solution temperature (LCST) of the nanocomposites was tailored for physiological applications by the addition of varying amounts of acrylamide (AAm). The addition of nanotubes contributed to interesting properties, including tailorability of temperature responsive swelling and mechanical strength of the resultant nanocomposites. The mechanical properties of the nanocomposites were studied over a range of temperatures (25–55°C) to characterize the effect of nanotube addition. A radiofrequency (RF) field of 13.56 MHz was applied to the nanocomposite discs, and the resultant heating was characterized using infrared thermography. This is the first report on the use of RF to remotely heat MWCNT‐hydrogel nanocomposites. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2010
ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.32138