Peptide nucleic acids, is an analogue of oligonucleotide in which sugar-phosphate backbone has been replaced by a polyamide chain. Due to the unique backbone of PNA, it can be used in same applications as conventional DNA/RNA.

Antimicrobial peptides (AMPs), also called host defense peptides (HDPs), which commonly content 5-40 amino acids, are natural antibiotics produced by various organisms. The first AMP was found by Dubos when extracted an antimicrobial agent from a soi

pH-sensitive linkers (acid-labile linkers), are a class of chemically cleavable linkers that were first used in early ADC developments. Hydrazonesand cis-Aconityl is among the most widely used pH-sensitive linkers. A cis-aconityl linkage is offen use