A camera module includes an optical assembly, an image sensor, a barrel holder, an angle measurement assembly, a perpendicularity adjustment assembly and a controller. The polynucleotides are miRNAs, miRNA precursors, and associated nucleic acids. The said container also has an auxiliary upper cover rotationally coupled to the lateral portions, and rotatable around a second set of pins during its opening andor closing movement, through contact with the said front cover. 3 nm or more and less than 1 nm, and wherein the catalyst metal is supported inside the pores having a radius of 1 nm or more. Corresponding systems are also described.