Lipoprotein lipase immobilization onto porous chitosan beads

1994 ◽  
Vol 10 (2) ◽  
pp. 225-229 ◽  
Author(s):  
Koki Itoyama ◽  
Seiichi Tokura ◽  
Toshio Hayashi
Keyword(s):  
Lipoprotein Lipase ◽  
Lipase Immobilization ◽  
Chitosan Beads ◽  
Porous Chitosan

Spacer effects on enzymatic activity of papain immobilized onto porous chitosan beads

Biomaterials ◽  
1994 ◽  
Vol 15 (2) ◽  
pp. 107-112 ◽  
Author(s):  
Koki Itoyama ◽  
Hiroaki Tanibe ◽  
Toshio Hayashi ◽  
Yoshito Ikada
Keyword(s):  
Enzymatic Activity ◽  
Chitosan Beads ◽  
Porous Chitosan

Spacer effects on enzymatic activity of bromelain immobilized onto porous chitosan beads

1998 ◽  
Vol 34 (7) ◽  
pp. 917-922 ◽  
Author(s):  
Hiroshi Seo ◽  
Koki Itoyama ◽  
Keiji Morimoto ◽  
Toru Takagishi ◽  
Masahito Oka ◽  
...  
Keyword(s):  
Enzymatic Activity ◽  
Chitosan Beads ◽  
Porous Chitosan

Protease immobilization onto porous chitosan beads

1991 ◽  
Vol 42 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Toshio Hayashi ◽  
Yoshito Ikada
Keyword(s):  
Chitosan Beads ◽  
Porous Chitosan

EPDIM peptide-immobilized porous chitosan beads for enhanced wound healing: Preparation, characterizations and in vitro evaluation

2009 ◽  
Vol 29 (3) ◽  
pp. 697-701 ◽  
Author(s):  
Jin Woo Bae ◽  
Joon Hye Lee ◽  
Won Sup Choi ◽  
Dong Sin Lee ◽  
Eun Hee Bae ◽  
...  
Keyword(s):  
Wound Healing ◽  
Chitosan Beads ◽  
In Vitro Evaluation ◽  
Porous Chitosan

Breakthrough curve for adsorption of mercury (II) on polyaminated highly porous chitosan beads

1997 ◽  
Vol 35 (7) ◽  
pp. 97-105 ◽  
Author(s):  
Yoshihide Kawamura ◽  
Hiroyuki Yoshida ◽  
Satoru Asai ◽  
Hiroaki Tanibe
Keyword(s):  
Breakthrough Curve ◽  
Transport Model ◽  
Parallel Transport ◽  
Effective Diffusivity ◽  
Mean Value ◽  
Chitosan Beads ◽  
Surface Diffusivity ◽  
Chelate Resin ◽  
Porous Chitosan ◽  
Highly Porous

The equilibrium isotherm and the breakthrough curve for adsorption of Hg(II) on polyaminated highly porous chitosan beads (PEI-CS) were compared with those for Unicellex UR-120H which was the best commercial chelate resin for removal of Hg(II) in Japan. As the intraparticle effective diffusivity Deff in PEI-CS was about two times larger than that in UR 120H, and adsorption capacity Hg(II) on PEI-CS was also larger than that on UR-120H, adsorption of Hg(II) on PEI-CS appeared feasible technically. The intraparticle concentration profiles of Hg(II) were measured for different period of time using X-ray micro-analyzer. The value of Deff was almost constant at 4 Re′ 7, and the mean value was 3.86 × 10−12 m2/s. The value od Deff increased in proportion to the influent concentration of Hg(II) Co,Hg. The pore diffusivity and surface diffusivity were determined using Deff based on the parallel transport model of surface and pore diffusions. The result showed that both the pore and surface diffusions of Hg(II) in PEI-CS particle were significant.

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