Electrocatalytical properties of polymethylferrocenyl dendrimers and their applications in biosensing.
The electrochemical characterization of polymethylferrocenyl dendrimers deposited onto a platinum electrode and their applications as hydrogen peroxide and glucose sensor are described. The redox dendrimers consist of flexible poly(propileneimine) dendrimer cores functionalised with octamethylferrocenyl units. Amperometric biosensors for glucose were prepared by immobilization of glucose oxidase onto these modified electrodes. The influence of the dendrimer generation and the thickness of the dendrimer layer, the effect of the substrate concentration, and the interferences and reproducibility on the response of the sensors were investigated.
Armada
M Pilar García
MP
Departamento de Ingeniería Química Industrial, Escuela Técnica Superior de Ingenieros Industriales, Universidad Politécnica de Madrid, 28006-Madrid, Spain. pilar.garcia.armada@upm.es
Losada
José
J
Zamora
Magdalena
M
Alonso
Beatriz
B
Cuadrado
Isabel
I
Casado
Carmen M
CM
D015374:Biosensing Techniques / Q000379:methods*; D002384:Catalysis; D050091:Dendrimers / Q000737:chemistry*; D004563:Electrochemistry; D004566:Electrodes; D005296:Ferrous Compounds / Q000737:chemistry*; D005947:Glucose / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry; D010084:Oxidation-Reduction; D010984:Platinum / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D015203:Reproducibility of Results; D013499:Surface Properties
D050091:Dendrimers; D005296:Ferrous Compounds; D011108:Polymers; D010984:Platinum; D006861:Hydrogen Peroxide; D005947:Glucose