journal article·2004-06

Adhesion between modified and unmodified poly(dimethylsiloxane) layers for a biomedical application

F Abbasi, H Mirzadeh

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Abstract

Surface and bulk modification techniques of poly(dimethylsiloxane) (PDMS) polymers were used to develop a new intra-cochlear electrode for close hugging of inner wall of scala tympani. Laser-induced surface grafting of poly(2-hydroxyethyl methacrylate) (PHEMA) and sequential method for preparation of interpenetrating polymer networks of PDMS/PHEMA were, respectively, used for surface and bulk modifications. The modified PDMS samples were studied by performing attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, contact angle measurement, and peel strength tests. The role of adhesion between modified and unmodified PDMS layers on the performances of two-layer structures was studied with peel strength test. The actual-sized fabricated electrodes were assessed inside a transparent model of scala tympani that was filled with saline.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Tactile and Sensory Interactions · Advanced Sensor and Energy Harvesting Materials · Silicone and Siloxane Chemistry

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (16)

Show source-provided references
1. Parker JL, Treaba CG. Use of bioresorbable polymers in cochlear implants and other implantable devices. US Patent No. 5,653,742, 1997.
2. Hochmair IJ, Hochmair ES. System for enhancing auditory stimulation and the like. US Patent No. 4,357,497, 1982.
3. Electrically evoked auditory brain stem response10.1016/0378-5955(91)90011-W ↗
4. A silastic positioner for modiolus-hugging position of intracochlear electrodes10.1016/S0196-0709(00)80011-3 ↗
5. Kuzma J, Seldon HL, Brown GG. Self-curving cochlear electrode array. US Patent No. 5,578,084, 1996.
6. Hansen CC, Lauridsen OM, Electrode for implantation into the cochlea (II), US Patent No. 4,284,085, 1981.
7. Silastic with polyacrylic acid filler10.1016/0142-9612(94)90237-2 ↗
8. Kuzma JA. Cochlear electrode implant assembly with positioning system therefor. US Patent No. 5,645,585, 1997.10.1121/1.419558 ↗
9. Jolly C. Apparatus and method for perimodiolar cochlear implant with retro-positioning. US Patent No. 5,999,859, 1999.10.4295/audiology.42.541 ↗
10. Kuzma JA. Flexible positioner for use with implantable cochlear electrode array. US Patent No. 6,078,841, 2000.
11. Properties of poly(dimethylsiloxane) (PDMS)/hydrogel multicomponent systems10.1002/polb.10559 ↗
12. Sequential interpenetrating polymer networks of poly(2-hydroxyethyl methacrylate) and poly(dimethylsiloxane)10.1002/app.10609 ↗
13. Roy · 2001
14. Standard Test Method for Peel or Stripping Strength of Adhesive Bonds, ASTM 903-93.
15. Gradient interpenetrating polymer networks. I. Poly(ether urethane) and polyacrylamide IPN10.1002/app.1981.070260601 ↗
16. Wu · 1982