In the present study, we describe an in vitro evaluation of a miniaturized capillary fiber‐based OEIP for delivery of Gem, herein referred to as the gemcitabine ion pump (GemIP), designed to transport, or “pump”, the charged form of the chemotherapeutic Gem through a CEM “ion channel” toward target tumor cells (Figure1, details Figure S1a–d, Supporting Information). This evidence concerns the gene GEM and neoplasm.