Given that the EDV surface is coated with lipopolysaccharide (LPS), single‐chain bispecific antibodies were attached to the EDV surface where one arm of the antibody is directed to the O‐polysaccharide epitopes and the other arm is directed to a tumour cell surface receptor for example Epidermal growth factor receptor (EGFR) which is found on the surface of over 70% of solid tumours. Here, EGFR is linked to neoplasm.