This chapter discusses the quality traits of transgenic plants for animal nutrition, including low phytate content, amino acid content, improved digestibility and enhanced oil content, and the prospects they offer and the challenges that remain to be addressed.

The protein corona is still somewhat of a mysterious consequence of the nanoparticles' application in theranostics. In this review, several critical aspects related to the protein corona are described, in particular which influences more specifically its formation, how to evaluate/characterize it, and what interactions to expect when the nanoparticle and the protein corona are inside the cell. Despite these issues, which have been studied in a general way, it has been verified that there's still much information missing when it comes to specific nanoparticles. Here, a few proteins are also highlighted as examples, which have been identified as part of the protein corona; in addition, several factors related to the formation of protein corona are discussed due to their important role in the different adsorbed proteins.