Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/22877
Title: Immobilizing catalysts in continuous flow micro-reactors: Polymer encapsulated metals and engineered biofilms
Authors: NG JECK FEI
Keywords: immobilization of catalysts, micro-reactors, biofilms, polymer encapsulation, recombinant, chiral alcohols
Issue Date: 4-Jan-2011
Source: NG JECK FEI (2011-01-04). Immobilizing catalysts in continuous flow micro-reactors: Polymer encapsulated metals and engineered biofilms. ScholarBank@NUS Repository.
Abstract: In this thesis, immobilization of chemical or biological catalysts onto the inner wall of capillary micro-reactors to produce catalyst coated micro-reactors had been investigated. For immobilization of chemical catalysts, polymer encapsulated (incarceration) palladium was coated onto the inner wall of a capillary column and the direct synthesis of hydrogen peroxide from the elements was studied. It was found that optimization of the reaction conditions can be done in a very short period of time and the reactor showed good sustainability for days. Whereas, for the immobilization of biological catalyst, we have demonstrated that cationized bovine serum albumin (cBSA) served as a biocompatible adhesion promoter for the biofilm formation of recombinant E. coli whole cells on glass surfaces. The synthesis of chiral alcohols in a silica capillary enzymatic micro-reactor under continuous process proceeded with up to 40 % higher efficiency than observed when the cells were immobilized in calcium-alginate beads in a packed bed flow reactor.
URI: http://scholarbank.nus.edu.sg/handle/10635/22877
Appears in Collections:Ph.D Theses (Open)

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