A handheld device for producing electrospun fibrous mat comprises: a housing configured to be handheld by a user a container accommodating at least one electrospinning medium at least a nozzle in fluid communication with the container a mechanism dispensing the medium from the container via said nozzle an auxiliary electrode surrounding the nozzle and a power supply providing electric potentials to the nozzle and the auxiliary electrode. The housing comprises an electrically conductive portion configured to be gripped by the user during operation. The electrically conductive portion is connected to the power supply.
