Binding Sites Biomarkers--metabolism Biomimetic Materials Biosensing Techniques Chromatography, High Pressure Liquid Humans Limit of Detection Materials Testing Molecular Imprinting--methods Polymers--chemical synthesis Proof of Concept Study Protein Binding Protein Conformation Reproducibility of Results Spectrophotometry, Ultraviolet Structure-Activity Relationship Vitamin K 1--blood Vitamin K 3--metabolism