MIPs can be used as biosensors to detect influenza A virus [21], estimate the agglutination tests of influenza subtypes [22], monitor SAR-CoV-2 in wastewater systems without biochemical techniques [23], recognize the cerebral dopamine neurotrophic factor (CDNF) protein [24], and detect the human epidermal growth factor receptor 2 (Her-2) protein, which is a significant breast cancer biomarker [25]. The gene discussed is CDNF; the disease is breast cancer.