Recovery of HgCl2 Using Polyaminated Highly Porous Chitosan Beads. Effect of Salt and Acid.

1998 ◽  
Vol 31 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Yoshihide Kawamura ◽  
Hiroyuki Yoshida ◽  
Satoru Asai ◽  
Hiroaki Tanibe
Keyword(s):  
Chitosan Beads ◽  
Porous Chitosan ◽  
Highly Porous

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.

Characterization of novel calcium hydroxide‐mediated highly porous chitosan‐calcium scaffolds for potential application in dentin tissue engineering

2020 ◽  
Vol 108 (6) ◽  
pp. 2546-2559 ◽  
Author(s):  
Diana Gabriela Soares ◽  
Ester Alves Ferreira Bordini ◽  
Fernanda Balestrero Cassiano ◽  
Erika Soares Bronze‐Uhle ◽  
Leandro Edgar Pacheco ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Calcium Hydroxide ◽  
Potential Application ◽  
Porous Chitosan ◽  
Highly Porous

scholarly journals Correction: Highly porous core–shell chitosan beads with superb immobilization efficiency for Lactobacillus reuteri 121 inulosucrase and production of inulin-type fructooligosaccharides

RSC Advances ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 4453-4453
Author(s):  
Thanapon Charoenwongpaiboon ◽  
Karan Wangpaiboon ◽  
Rath Pichyangkura ◽  
Manchumas Hengsakul Prousoontorn
Keyword(s):  
Lactobacillus Reuteri ◽  
Core Shell ◽  
Chitosan Beads ◽  
Porous Core ◽  
Highly Porous

Correction for ‘Highly porous core–shell chitosan beads with superb immobilization efficiency for Lactobacillus reuteri 121 inulosucrase and production of inulin-type fructooligosaccharides’ by Thanapon Charoenwongpaiboon et al., RSC Adv., 2018, 8, 17008–17016.

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
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