A photosynthetic biosensor with enhanced electron transfer generation realized by laser printing technology.
Anal Bioanal Chem
; 402(10): 3237-44, 2012 Apr.
Article
en En
| MEDLINE
| ID: mdl-22302172
One of the limits of current electrochemical biosensors is a lack of methods providing stable and highly efficient junctions between biomaterial and solid-state devices. This paper shows how laser-induced forward transfer (LIFT) can enable efficient electron transfer from photosynthetic biomaterial immobilized on screen-printed electrodes (SPE). The ideal pattern, in terms of photocurrent signal of thylakoid droplets giving a stable response signal with a current intensity of approximately 335 ± 13 nA for a thylakoid mass of 28 ± 4 ng, was selected. It is shown that the efficiency of energy production of a photosynthetic system can be strongly enhanced by the LIFT process, as demonstrated by use of the technique to construct an efficient and sensitive photosynthesis-based biosensor for detecting herbicides at nanomolar concentrations.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Extractos Vegetales
/
Técnicas Biosensibles
/
Tilacoides
/
Herbicidas
Idioma:
En
Revista:
Anal Bioanal Chem
Año:
2012
Tipo del documento:
Article
País de afiliación:
Italia
Pais de publicación:
Alemania