Recent progress in miniaturized biofuel cells will be briefly reviewed with special focus on electrode surfaces nanostructured with carbonaceous nanomaterials and electron transfer without mediators [1-7]. Laccase binding to electrodes by means of arylated carbon nanotubes will be discussed and catalytic efficiencies of the chosen nanostructured electrodes will be compared. I will describe the preparation of the enzyme/SWCNT bioconjugates, and their application for the modification of the biocathode and bioanode. We test the catalytically active electrodes in the hybrid biofuel cell with Zn anode and if found useful -  in the fully enzymatic biofuel cell. Carbon nanotubes functionalized with ethylamine group, activated and reacted with laccase were found promising for the biofuel cell applications. The power density of the hybrid biofuel cell based on the carbon nanotubes bound covalently to laccase on the cathode and Zn covered with Nafion layer as the anode reached 1 mW cm^-2 at working voltage 0.8 V. The open circuit voltage of this hybrid cell was 1.5 V.

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1. Biofuel cell based on carbon nanotubes with covalently bonded laccase and glucose dehydrogenase embedded in cubic phase
2. Tetraazamacrocyclic copper(II) and nickel(II) complexes in host - guest systems.
3. Free-radical adsorption as a method of binding gold nanoparticles to gold electrode surfaces.
4. Biofuel cell based on arylated carbon nanotubes
5. Carbon nanotube nanostructured electrodes for membrane – less biofuel cell based on liquid-crystalline phases as matrices for enzymes
6. Cyclodextrins as molecular recognition elements in monolayers
7. A glucose/O₂ biofuel cell based on electrodes modified with liquid-crystalline cubic phases
8. Redox processes of dithiolated tetraazamacrocyclic complexes of Ni(II) and Cu(II) in solution and immobilized on gold electrodes
9. Nanostructured Carbon Electrodes For Oxygen Reduction Catalyzed By Laccase Without any Mediators
10. Molecular Motions in New Catenanes
11. New methods of immobilization of oxidases at electrodes
12. Electron transport through alkanethiolate films decorated with monolayer-protected gold clusters
13. Fine-tuning of properties of bismacrocyclic dinuclear cyclidene receptors by N-methylation.
14. Designing of cathodes modified with enzymes for the biofuel cell applications
15. Lipidic cubic phase for immobilising enzymes on electrodes
16. Properties of monolayers of azocrown ethers: Ph -tunable equilibria for compounds with substituents containing mobile protons
17. Modified Electrodes Based on Lipidic Cubic Phases