NOVELTY - The system comprises: an algal cell comprising a lipid; metal nanoparticles; and an electromagnetic radiation generator (70) operable to generate radio frequency or microwave radiation that excites the metal nanoparticles, resulting in lysis of the algal cell. The lysis of the algal cell releases the lipid. The metal nanoparticles are located both inside and outside of the algal cell, both inside the algal cell and on or in the cell wall, both outside the algal cell and on or in the cell wall, or inside and outside of the algal cell and on or in the cell wall prior to lysis.    USE - The system is useful for performing algal cell lysis to recover a lipid (claimed) including lipid oils that are useful in production of biobutanol, biopetroleum, methane, straight vegetable oil, jet fuel, plastics and cosmetics, where the algae are fresh water algae, salt water algae, cyanobacteria algae or diatom algae.    ADVANTAGE - The system simply and economically disrupts the algal cell walls while leaving the useful materials from the algae in a useful form, and effectively recovers the lipid with high yield.    DETAILED DESCRIPTION - The system comprises: an algal cell comprising a lipid; metal nanoparticles; and an electromagnetic radiation generator (70) operable to generate radio frequency or microwave radiation that excites the metal nanoparticles, resulting in lysis of the algal cell. The lysis of the algal cell releases the lipid. The metal nanoparticles: are located both inside and outside of the algal cell, both inside the algal cell and on or in the cell wall, both outside the algal cell and on or in the cell wall, or inside and outside of the algal cell and on or in the cell wall prior to lysis; are operable to experience ionic conduction and dipolar reorientation when excited by the electromagnetic radiation; comprise a ferromagnetic material; and are coated or modified in order to increase uptake by the algal cells. The system further comprises an agent to increase uptake of the metal nanoparticles by the algal cells. An INDEPENDENT CLAIM is included for a method for recovering a lipid from an algal cell.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a system for producing lipids from algae.    Lipid oil (40)    Bioreactor (50)    Algae culture (60)    Electromagnetic radiation generator (70)    Residual biomass. (80)