Chitosan is polycationic in nature due to which the polymer can be attached to the negatively charged gold nanoparticle surfaces through electrostatic interactions. Using chitosan enables providing enough steric hindrance ensuring colloid stability and functionalizing nanoparticles to be used as sensors.t is either partially or fully deacetylated chitin. As chitin occurs naturally (for example in fungal cell walls and crustacean shells), chitosan is a fully biodegradable and biocompatible natural polymer, and can be used as an adhesive and as an antibacterial and antifungal agent.
Affiant. Someone who signs an affidavit and swears to its truth before a notary public or another person authorized to take oaths, such as a county clerk. Compare: declarant.
An affidavit is a sworn statement or statements made under oath and under penalty of perjury. The person making the statements in the form is called the affiant. When you sign an affidavits form, you affirm that the statement are made with personal knowledge or according to information and belief.Affidavit forms are signed before a notary, who asks the affiant to affirm that any statement made is true to the best of the affiant's knowledge.ffidavits are a way to verify the facts or introduce testimony of an unavailable witness in a manner that will stand up in court. When you make an affidavit, the form for affidavit is made under oath and subject to the penalty of perjury.