
N-(2,4-Dinitrophenyl)tetrapeptide p-nitroanilides (Dnp-tetra-peptide-pNA) exhibit characteristic CD spectra when they take on β-turn conformation. Exciton coupling of electric transition dipoles of the two chromophores is thought to be the origin of […]
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Drug resistance has always been one of the issues that scientists work hard to find ways out for better diseases treatment, as it hinders many drugs that were developed with […]
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Scientists from the University of Queensland and a biotechnology company discovered a new class of antibiotics, which is a kind of synthetic sugar. And the new antibiotics can significantly decrease […]