Heme proteins sequestered in silica sol–gels using surfactants feature direct electron transfer and peroxidase activity

2004 ◽  
Vol 6 (2) ◽  
pp. 205-209 ◽  
Author(s):  
O Nadzhafova
Keyword(s):  
Electron Transfer ◽  
Peroxidase Activity ◽  
Heme Proteins ◽  
Direct Electron Transfer ◽  
Silica Sol

scholarly journals Modulation of the Silica Sol–Gel Composition for the Promotion of Direct Electron Transfer to Encapsulated Cytochromec

Langmuir ◽  
2014 ◽  
Vol 30 (34) ◽  
pp. 10531-10538 ◽  
Author(s):  
Alonso Gamero-Quijano ◽  
Francisco Huerta ◽  
Emilia Morallón ◽  
Francisco Montilla
Keyword(s):  
Electron Transfer ◽  
Direct Electron Transfer ◽  
Sol Gel ◽  
Silica Sol ◽  
Gel Composition

Studies on direct electron transfer and biocatalytic properties of heme proteins in lecithin film

2005 ◽  
Vol 117 (1) ◽  
pp. 55-63 ◽  
Author(s):  
Qing Lu ◽  
Xiaoxia Chen ◽  
Yunhua Wu ◽  
Shengshui Hu
Keyword(s):  
Electron Transfer ◽  
Heme Proteins ◽  
Direct Electron Transfer

scholarly journals Amperometric Biosensors Based on Direct Electron Transfer Enzymes

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4525
Author(s):  
Franziska Schachinger ◽  
Hucheng Chang ◽  
Stefan Scheiblbrandner ◽  
Roland Ludwig
Keyword(s):  
Electron Transfer ◽  
Electrode Materials ◽  
Direct Electron Transfer ◽  
Accurate Determination ◽  
Direct Electrochemistry ◽  
Product Analysis ◽  
Amperometric Biosensors ◽  
Chemical Surface ◽  
Fusion Enzymes ◽  
Cost Efficient

The accurate determination of analyte concentrations with selective, fast, and robust methods is the key for process control, product analysis, environmental compliance, and medical applications. Enzyme-based biosensors meet these requirements to a high degree and can be operated with simple, cost efficient, and easy to use devices. This review focuses on enzymes capable of direct electron transfer (DET) to electrodes and also the electrode materials which can enable or enhance the DET type bioelectrocatalysis. It presents amperometric biosensors for the quantification of important medical, technical, and environmental analytes and it carves out the requirements for enzymes and electrode materials in DET-based third generation biosensors. This review critically surveys enzymes and biosensors for which DET has been reported. Single- or multi-cofactor enzymes featuring copper centers, hemes, FAD, FMN, or PQQ as prosthetic groups as well as fusion enzymes are presented. Nanomaterials, nanostructured electrodes, chemical surface modifications, and protein immobilization strategies are reviewed for their ability to support direct electrochemistry of enzymes. The combination of both biosensor elements—enzymes and electrodes—is evaluated by comparison of substrate specificity, current density, sensitivity, and the range of detection.

scholarly journals Enhancement of Direct Electron Transfer in Graphene Bioelectrodes Containing Novel Cytochrome c Variants with Optimized Heme Orientation

2021 ◽  
pp. 107818
Author(s):  
Miriam Izzo ◽  
Silvio Osella ◽  
Margot Jacquet ◽  
Małgorzata Kiliszek ◽  
Ersan Harputlu ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Cytochrome C ◽  
Direct Electron Transfer
Sign in / Sign up

Export Citation Format

Share Document