Abstract: The present invention refers to proteins and bioactive peptides with immunomodulating and antiviral activity. Present peptide complexes have three-dimensional structure and are described by the following structural formula (SEQ ID NO: 23): where: X1 is absent or contains not less than 1 amino acid; R1 and R2 peptide chains, containing amino acid residues, His or Cys, interactable with transition metal ions, with R1 containing up to 5 amino acid residues or absent; R2 contains up to 3 amino acid residues or absent. Histidine-rich peptide complexes, primarily alloferon family peptides with Zn ions, will make it possible to create drugs with targeted mechanism of action, and design them with regard to understanding of drug target structure.

Abstract: Disclosed is a device for confirming recycle of a disposable medical handpiece, which can prevent imprudent recycle of the medical handpiece that should be discarded after one time. The device includes a signal conversion unit which receives DC power from the handpiece and detects voltage applied to a driving motor of the handpiece to convert the voltage into a rated signal and output the rated signal; a control unit which receives the output signal of the signal conversion unit, detects an initial operation state of the driving motor based on the output signal and then outputs a lamp switching signal when the driving motor is operated again after a predetermined operation interval is elapsed; and a lamp which is connected with an output terminal of the control unit and turned on in response to the lamp conversion signal.