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Macromolecule Sorption and Diffusion in HEMA/MAA Hydrogels

Journal Article · · Industrial and Engineering Chemistry Research
DOI:https://doi.org/10.1021/ie402148u· OSTI ID:1570981
 [1];  [1];  [1];  [1];  [1];  [1];  [2]
  1. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering
  2. Univ. of California, Berkeley, CA (United States). Dept. of Chemical and Biomolecular Engineering and Vision Science Group
Transient solute absorption and desorption concentration profiles were measured in a 70 wt % hydroxyethyl methacrylate (HEMA)/30 wt % methacrylic acid (MAA) anionic hydrogel using two-photon confocal microscopy. Dilute aqueous solutes included fluorescently labeled dextrans with molecular masses of 4, 10, and 20 kDa, and fluorescently labeled cationic avidin protein. Cross-linking densities with ethylene glycol dimethacrylate (EGDMA) varied from 0 to 1 wt % with polymer volume fractions increasing from 0.15 to 0.25. Average gel mesh sizes, determined from zero-frequency oscillatory shear storage moduli, ranged from about 3.6 to 8.4 nm over the cross-link ratios studied. All solutes exhibit Stokes-Einstein hydrodynamic radii obtained from measured free diffusion coefficients, Do, comparable to or larger than the average gel mesh size. In spite of considerable size exclusion, the studied solutes penetrate the gels indicating a range of mesh sizes available for transport. Transient uptake and release concentration profiles for FITC-dextrans follow simple diffusion theory with diffusion coefficients, D, essentially independent of loading or release characteristic of reversible absorption. Although strongly size-excluded, these solutes do not interact specifically with the polymer network. Diffusivities are accordingly predicted from a large-pore effective-medium (LPEM) model developed to account for solute size, hydrodynamic drag, and distribution of mesh sizes available for transport in the polymer network. For this class of solute, anrs of magnitude slower than that of dextran of similar hydrodynamic radius. Desorption of avidin is not cd using no adjustable parameters, diffusivities predicted from the new effective-medium model demonstrate good agreement with experiment. For the specific-interacting cationic protein, avidin, gel loading is 3 ordeomplete even after 2 weeks of extraction. On the basis of size alone, avidin is strongly size-excluded, yet it exhibits a partition coefficient of over 20. For the positively charged protein, we observed specific ion binding on the negatively charged carboxylate groups of MAA-decorated polymer strands in the larger mesh spaces. Finally, simple linear sorption kinetics gives an adsorption time constant of 5 min and a desorption time constant of about 20 days, suggesting nearly irreversible uptake of cationic avidin on the anionic gel matrix.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1570981
Journal Information:
Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 50 Vol. 52; ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

References (73)

Aqueous Solute Partitioning and Mesh Size in HEMA/MAA Hydrogels journal November 2012
Characterization of protein adsorption by composite silica-polyacrylamide gel anion exchangers I. Equilibrium and mass transfer in agitated contactors journal October 1996
Restricted diffusion in binary solutions journal March 1973
Diffusion of Macromolecules in Agarose Gels: Comparison of Linear and Globular Configurations journal July 1999
A calculation of the viscous force exerted by a flowing fluid on a dense swarm of particles journal December 1949
Dynamic wettability properties of a soft contact lens hydrogel journal January 2005
Mechanism of the three-dimensional polymerization of glycol methacrylates. II. The system glycol monomethacrylate–glycol dimethacrylates–solvents journal January 1971
Hindered diffusion in agarose gels: test of effective medium model journal February 1996
Contact Lenses for Drug Delivery journal January 2006
The structure of highly crosslinked poly(2-hydroxyethyl methacrylate) hydrogels journal April 1985
Hindered diffusion of oligosaccharides in high strength poly(ethylene glycol)/poly(acrylic acid) interpenetrating network hydrogels: Hydrodynamic vs. obstruction models journal December 2009
Intraparticle Mass Transfer in High-Speed Chromatography of Proteins journal August 1997
The spaces in a uniform random suspension of fibres journal January 1958
New challenges in biomaterials journal March 1994
Extended delivery of hydrophilic drugs from silicone-hydrogel contact lenses containing Vitamin E diffusion barriers journal May 2010
A kinetic model for enzyme interfacial activity and stability: pa-hydroxynitrile lyase at the diisopropyl ether/water interface journal April 2002
Hindered transport of spherical macromolecules in fibrous membranes and gels journal November 1989
Hydrogels for tissue engineering: scaffold design variables and applications journal November 2003
Cytocompatibility of self-assembled β-hairpin peptide hydrogel surfaces journal September 2005
Über Elementarakte mit zwei Quantensprüngen journal January 1931
Solute diffusion in swollen membranes. IX. Scaling laws for solute diffusion in gels journal August 1988
Soft contact lens polymers: an evolution journal December 2001
Surface and pore diffusion in macroporous and gel-filled gigaporous stationary phases for protein chromatography journal June 2002
Protein adsorption: Kinetics and history dependence journal December 2003
An Obstruction-Scaling Model for Diffusion in Homogeneous Hydrogels journal February 1999
Review: Hydrogels for cell immobilization journal May 1996
Diffusion and partitioning of proteins in charged agarose gels journal April 1995
An examination of the thermorheological and drug release properties of zinc tetraphenylporphyrin-containing thermoresponsive hydrogels, designed as light activated antimicrobial implants journal February 2007
Novel modified starch–xanthan gum hydrogels for controlled drug delivery: Synthesis and characterization journal March 2010
Advanced sorbents for preparative protein separation purposes journal January 1994
Structural and Mechanical Properties of UV-Photo-Cross-Linked Poly(N-vinyl-2-pyrrolidone) Hydrogels journal December 2007
Aberrations in confocal spectroscopy of polymeric materials: Erroneous thicknesses and intensities, and loss of resolution journal January 2001
Mesh Size of Charged Polyacrylamide Hydrogels from Partitioning Measurements journal September 2005
Diffusion and interaction in gels and solutions. 4. Hard sphere Brownian dynamics simulations journal May 1993
Solute diffusion in hydrogels. journal February 1998
Hindered transport in fibrous membranes and gels: Effect of solute size and fiber configuration journal October 1990
Protein partitioning and transport in supported cationic acrylamide-based hydrogels journal May 2003
Counterion diffusion in polyelectrolyte solutions journal January 1984
Hindered diffusion of spherical macromolecules through dilute fibrous media journal July 1996
Laser Scanning Confocal Microscopy Study of Dye Diffusion in Fibers journal May 2000
Diffusion of proteins and nonionic micelles in agarose gels by holographic interferometry journal January 1997
Protein Transport in Constrained Anionic Hydrogels:  Diffusion and Boundary-Layer Mass Transfer journal February 2001
Permeation of water through some hydrogels journal October 1965
Scleroglucan/borax/drug hydrogels: Structure characterisation by means of rheological and diffusion experiments journal October 2009
Biomimetic hydrogels for enhanced loading and extended release of ocular therapeutics journal February 2007
Localization of Lysozyme Sorption to Conventional and Silicone Hydrogel Contact Lenses Using Confocal Microscopy journal January 2009
Reduction of Irreversible Protein Adsorption on Solid Surfaces by ProteinEngineering for IncreasedStability journal July 2005
Combining Small Angle Neutron Scattering (SANS) and Fluorescence Correlation Spectroscopy (FCS) Measurements To Relate Diffusion in Agarose Gels to Structure journal September 2006
Macroscopic counterion diffusion in solutions of cylindrical polyelectrolytes journal July 1985
The Effect of Water Hydraulic Permeability on the Settling of a Soft Contact Lens on the Eye journal January 2005
Physical models of diffusion for polymer solutions, gels and solids journal August 1999
Rotation of a sphere in Brinkman fluids journal April 1996
Multicomponent protein adsorption in supported cationic polyacrylamide hydrogels journal January 2005
Solute Diffusion within Hydrogels. Mechanisms and Models journal November 1998
Diffusion and interaction in gels and solutions. 3. Theoretical results on the obstruction effect journal October 1991
Transport of ionizable drugs and proteins in crosslinked poly(acrylic acid) and poly(acrylic acid-co-2-hydroxyethyl methacrylate) hydrogels. II. Diffusion and release studies journal September 1997
Controlled drug release from contact lenses: a comprehensive review from 1965-present journal January 2011
Direct Imaging of Lysozyme Adsorption onto Mica by Atomic Force Microscopy journal June 2002
Solute diffusion in swollen membranes. Part I. A new theory journal October 1983
The Use of UV/vis Absorption to Measure Diffusion Coefficients in LiPF[sub 6] Electrolytic Solutions journal January 2008
Structures and Properties of Rubberlike Networks book August 1997
Partitioning and diffusion of large molecules in fibrous structures journal June 2000
Effects of aqueous polymeric surfactants on silicone-hydrogel soft- contact-lens wettability and bacterial adhesion of Pseudomonas aeruginosa journal August 2012
Permeability and partition coefficient of aqueous sodium chloride in soft contact lenses journal May 2011
Partitioning and diffusion of proteins and linear polymers in polyacrylamide gels journal March 1996
Effects of Multisolute Steric Interactions on Membrane Partition Coefficients journal June 2000
Hydrogels in pharmaceutical formulations journal July 2000
Longitudinal modulus and hydraulic permeability of poly(methacrylic acid) gels: effects of charge density and solvent content journal August 1993
A Hydrodynamic Model for Hindered Diffusion of Proteins and Micelles in Hydrogels journal December 2000
Protein adsorption on hydrogels journal September 1985
Polymeric hydrogels for novel contact lens-based ophthalmic drug delivery systems: A review journal April 2008
Mechanical properties of hydrogels and their experimental determination journal January 1996
Protein diffusion in charged polyacrylamide gels journal December 1999

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