Biofriendly bonding processes for nanoporous implantable SU-8 microcapsules for encapsulated cell therapy

Journal of Microencapsulation

Volumn 28, Issue 8, 2011, Pages 771-782

  Nemani, Krishnamurthy ^a   Kwon, Joonbum ^b   Trivedi, Krutarth ^b   Hu, Walter ^b   Lee, Jeong Bong ^b   Gimi, Barjor ^a,b  

^a DARTMOUTH MEDICAL SCHOOL   (United States)

^b The University of Texas at Dallas   (United States)

Author keywords

Biofriendly molecular bonding; Magnetic self assembly; Nanoporous microcapsules; Photocured adhesion; SU 8 surface modification

Indexed keywords

EPOXY RESIN; SILANOL; SU 8; UNCLASSIFIED DRUG;

ALDOL REACTION; ARTICLE; CELL ENCAPSULATION; CELL THERAPY; CHEMICAL BINDING; CONTROLLED STUDY; COVALENT BOND; DEVICE; HYDROGEL; MAGNETISM; MICROCAPSULE; MICRODEVICE; NANOFABRICATION; NANOPORE; NUCLEAR MAGNETIC RESONANCE IMAGING; PHOTOCHEMISTRY; POROSITY;

ADHESIVES; ANIMALS; CAPSULES; CELL SURVIVAL; CELLS, IMMOBILIZED; DRUG COMPOUNDING; EPOXY COMPOUNDS; HUMANS; ISLETS OF LANGERHANS; MAGNETS; NANOSTRUCTURES; POLYMERIZATION; POROSITY; SILANES; TISSUE THERAPY;

EID: 82255163528     PISSN: 02652048     EISSN: 14645246     Source Type: Journal    
DOI: 10.3109/02652048.2011.621552     Document Type: Article

References (18)

1. Beuf O, Briguet A, Lissac M, Davis R. Magnetic resonance imaging for the determination of magnetic susceptibility of materials. J Magn Reson B, 1996;112:111-8. (Pubitemid 126758713)
2. Cho HJ, Bhansali S, Ahn CH. Electroplated thick permanent magnet arrays with controlled direction of magnetization for MEMS application. J Appl Phys, 2000;87:6340-2.
3. Cho SH, Lu HM, Cauller L, Romero-Ortega MI, Lee JB, Hughes GA. Biocompatible SU-8-based microprobes for recording neural spike signals from regenerated peripheral nerve fibers. IEEE Sens J, 2008;8:1830-6.
4. Gimi B, Artemov D, Leong T, Gracias DH, Bhujwalla ZM. MRI of regular-shaped cell-encapsulating polyhedral microcontainers. Magn Reson Med, 2007;58:1283-7. (Pubitemid 350234216)
5. Gimi B, Kwon J, Kuznetsov A, Vachha B, Magin RL, Philipson LH, Lee JB. A nanoporous, transparent microcontainer for encapsulated islet therapy. J Diabetes Sci Technol, 2009a;3:297-303.
6. Gimi B, Kwon J, Liu L, Su Y, Nemani K, Trivedi K, Cui Y, Vachha B, Mason R, Hu W, et al. Cell encapsulation and oxygenation in nanopor-ous microcontainers. Biomed Microdevices, 2009b;11:1205-12.
7. Gimi B, Kwon J, Trivedi K, Krishnamurthy N, Hu W, Lee J. 2009c. Nanoimprinted, magnetically assembled microcontainers for cell therapy, XVIIth International Conference on Bioencapsulation, Groningen, Netherlands.
8. Hopper TAJ, Vasilic B, Pope JM, Jones CE, Epstein CL, Song HK, Wehrli FW. Experimental and computational analyses of the effects of slice distortion from a metallic sphere in an MRI phantom. Magn Reson Imaging, 2006;24:1077-85. (Pubitemid 44402983)
9. Iwata H, Kobayashi K, Takagi T, Oka T, Yang H, Amemiya H, Tsuji T, Ito F. Feasibility of agarose microbeads with xenogeneic islets as a bioartificial pancreas. J Biomed Mater Res, 1994;28:1003-11. (Pubitemid 24274842)
10. Kotzar G, Freas M, Abel P, Fleischman A, Roy S, Zorman C, Moran JM, Melzak J. Evaluation of MEMS materials of construction for implantable medical devices. Biomaterials, 2002;23:2737-50. (Pubitemid 34465734)
11. Kwon J, Trivedi K, Krishnamurthy NV, Hu W, Lee J-B, Gimi B. SU-8-based immunoisolative microcontainer with nanoslots defined by nanoimprint lithography. J Vac Sci Technol B, 2009;27: 2795-800.
12. Lee NY, Chung BH. Novel poly(dimethylsiloxane) bonding strategy via room temperature "chemical gluing". Langmuir, 2009;25:3861-6.
13. Ouellet E, Yang CWT, Lin T, Yang LL, Lagally ET. Novel carboxyl-amine bonding methods for poly(dimethylsiloxane)-based devices. Langmuir, 2010;26:11609-14.
14. Shoichet MS, Li RH, White ML, Winn SR. Stability of hydrogels used in cell encapsulation: An in vitro comparison of alginate and agarose. Biotechnol Bioeng, 1996;50:374-81. (Pubitemid 26126671)
15. Tao SL, Popat K, Desai TA. Off-wafer fabrication and surface modification of asymmetric 3D SU-8 microparticles. Nat Protoc, 2006;1:3153-8.
16. Vokoun D, Beleggia M, Heller L, Sittner P. Magnetostatic interactions and forces between cylindrical permanent magnets. J Magn Magn Mater, 2009;321:3758-63.
17. Voskerician G, Shive MS, Shawgo RS, von Recum H, Anderson JM, Cima MJ, Langer R. Biocompatibility and biofouling of MEMS drug delivery devices. Biomaterials, 2003;24:1959-67. (Pubitemid 36297040)
18. Yu L, Tay FEH, Xu G, Chen B, Avram M, Iliescu C. Adhesive bonding with SU-8 at wafer level for microfluidic devices. J Phys Conf ser, 2006;34:776.