In the field of drug or nutrient administration novel particles and formulations thereof are provided. Said particles each have a core comprising active agent and at least partial coating comprising proteins, selected from hydrophobins. Preferable hydrophobins belong to class I or class II. Said particles exhibit enhanced characteristics, for example dispersibility or solubility. Here is also disclosed two methods for producing said particles in nanoscale, of which one utilizes precipitating and another wet milling.