Enzyme immobilization in porous solid supports?penetration of immobilized enzyme

1984 ◽  
Vol 26 (9) ◽  
pp. 1032-1037 ◽  
Author(s):  
D. D. Do
1982 ◽  
Vol 24 (7) ◽  
pp. 1527-1546 ◽  
Author(s):  
Duong D. Do ◽  
Douglas S. Clark ◽  
James E. Bailey

CrystEngComm ◽  
2020 ◽  
Vol 22 (41) ◽  
pp. 6886-6899
Author(s):  
Erin R. Bertelsen ◽  
Nolan C. Kovach ◽  
Benjamin J. Reinhart ◽  
Brian G. Trewyn ◽  
Mark R. Antonio ◽  
...  

Functionalized ordered mesoporous carbons facilitate the templateing of microcrystalline-like domains and multinuclear speciation under high Eu3+ loading conditions.


Nanomaterials ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 1558 ◽  
Author(s):  
Zhang ◽  
Dong ◽  
Zhou ◽  
Hu ◽  
Li ◽  
...  

Ferritin possess favorable properties because its exterior and interior surface can be applied to generate functional nanomaterials, which make them possible for enzyme immobilization and recycling. Here, we report the noncovalent immobilization of a genetically modified β-glucosidase onto the outer surface of synthetic magnetoferritin through the electrostatic interaction of a heterodimeric coiled-coil protein formed by coils containing lysine residues (K-coils) and coils containing glutamic acid (E-coils). The immobilized enzyme was characterized, and its enzymatic properties were evaluated. Furthermore, reusability of immobilized enzyme was demonstrated in aqueous solution under an applied magnetic field. The results showed that magnetoferritin was successfully prepared and it was an excellent support for enzyme immobilization. After three times usages, the retention rates were 93.75%, 82.5%, and 56.25%, respectively, demonstrating that immobilized enzyme possessed good retention efficiency and could be used as potential carrier for other biomolecules. The strategy of enzyme immobilization developed in this work can be applied, in general, to many other target molecules.


2016 ◽  
Vol 90 ◽  
pp. 76-82 ◽  
Author(s):  
Marieta L.C. Passos ◽  
David S.M. Ribeiro ◽  
João L.M. Santos ◽  
M.Lúcia M.F.S. Saraiva

2018 ◽  
Vol 80 (3) ◽  
Author(s):  
Suhaily Suhaimi ◽  
Rohaida Che Man ◽  
Natassha Jamil ◽  
Zatul Iffah Mohd Arshad ◽  
Shalyda Md Shaarani ◽  
...  

The production of cyclodextrin (CD) over the years has been increasing due to the numerous applications in industries such as in food, cosmetic, pharmaceutical and agricultural industries. However, cyclodextrin glucanotransferase (CGTase) which involved in the enzymatic reaction on the production of CD is unstable and easily denatured at extreme conditions resulted in low CD production. Hence, the enzyme immobilization technique is introduced to overcome these problems and subsequently increase the production of CD. In the present study, the CGTase was immobilized on hollow fiber membrane to increase the production of CD during the reaction. The effect of reaction conditions (types of starch, concentration of starch, temperature and pH) of the immobilized enzyme on the production of CD were investigated. Among the three types of starch tested, the soluble potato starch was the most suitable substrate for the production of CD with 4.13 mg/mL. In addition, by using 3% (w/v) of the soluble potato starch, the production of CD was 5.22 mg/mL . The optimal reaction temperature and pH were found to be at 40°C and pH 6 with 5.21 mg/mL and 4.62 mg/ml of CD, respectively. The immobilized enzyme exhibited a 1.3-3-fold increase in CD production compared to the free enzyme. Therefore, the hollow fiber membrane is suitable to be used as a support for enzyme immobilization with the high production of CD.


2016 ◽  
Vol 52 (66) ◽  
pp. 10159-10162 ◽  
Author(s):  
Joshua Britton ◽  
Colin L. Raston ◽  
Gregory A. Weiss

Continuous flow biocatalysis gets a new spin. An efficient and general enzyme immobilization technique for vortex fluidic processing has been developed. The immobilized enzyme demonstrated no decrease in enzyme activity over 10 h in continuous flow with a >95% reduction in quantities of required reagents and enzymes.


Langmuir ◽  
2017 ◽  
Vol 33 (42) ◽  
pp. 11719-11726 ◽  
Author(s):  
Nanhua Wu ◽  
Xiaoyan Ji ◽  
Wenlong Xie ◽  
Chang Liu ◽  
Xin Feng ◽  
...  

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