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Title: Process for preparing multilayer enzyme coating on a fiber

Patent ·
OSTI ID:982369

A process for preparing high stability, high activity biocatalytic materials is disclosed and processes for using the same. The process involves coating of a material or fiber with enzymes and enzyme aggregate providing a material or fiber with high biocatalytic activity and stability useful in heterogeneous environments. In one illustrative approach, enzyme "seeds" are covalently attached to polymer nanofibers followed by treatment with a reagent that crosslinks additional enzyme molecules to the seed enzymes forming enzyme aggregates thereby improving biocatalytic activity due to increased enzyme loading and enzyme stability. This approach creates a useful new biocatalytic immobilized enzyme system with potential applications in bioconversion, bioremediation, biosensors, and biofuel cells.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA)
Patent Number(s):
7,611,835
Application Number:
11/241,506
OSTI ID:
982369
Country of Publication:
United States
Language:
English

References (20)

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Electrospinning of Polymeric and Ceramic Nanofibers as Uniaxially Aligned Arrays journal August 2003
A new, mild cross-linking methodology to prepare cross-linked enzyme aggregates journal January 2004
Synthesis of enantiomerically pure (S)-mandelic acid using an oxynitrilase–nitrilase bienzymatic cascade: a nitrilase surprisingly shows nitrile hydratase activity journal February 2006
Crude aminoacylase fromaspergillus sp. is a mixture of hydrolases journal October 2003
Immobilised enzymes: carrier-bound or carrier-free? journal August 2003
Preparation, optimization, and structures of cross-linked enzyme aggregates (CLEAs) journal January 2004
Cross-Linked Aggregates of ( R )-Oxynitrilase:  A Stable, Recyclable Biocatalyst for Enantioselective Hydrocyanation journal January 2005
MATERIAL SCIENCE: Spinning Continuous Fibers for Nanotechnology journal June 2004
Cross-Linked Enzyme Aggregates:  A Simple and Effective Method for the Immobilization of Penicillin Acylase journal May 2000
Cross-Linked Aggregates of the Hydroxynitrile Lyase fromManihot esculenta: Highly Active and Robust Biocatalysts journal August 2006

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