PMID- 34893275 OWN - NLM STAT- MEDLINE DCOM- 20220316 LR - 20220316 IS - 1879-1344 (Electronic) IS - 0144-8617 (Linking) VI - 277 DP - 2022 Feb 1 TI - Relationship between phosphorylamine-modification and molecular weight on transfection efficiency of chitosan. PG - 118870 LID - S0144-8617(21)01257-1 [pii] LID - 10.1016/j.carbpol.2021.118870 [doi] AB - The aim of this study is both to design the chitosan (Chi) nanoparticles with different M(w) containing the phosphoester bonds and increase their amino function for the transfection. The phosphorylamine-modification of Chi and depolymerized Chi (DChi) was realized using o-phosphorylethanolamine (o-PEA) and characterized, for the first time. The nanoparticles (nMChi and nMDChi) were prepared by ionic gelation and their particle size, polydispersity index (PDI), zeta potential, stability, gene binding capacity and cytotoxicity were examined. The effects of the M(w) of Chi on the cytotoxicity, gene binding capacity, and in vitro transfection efficiency of the nanoparticles on Human Embryonic Kidney 293 (HEK293) cells were also examined. Green Fluorescent Protein Circular Plasmid DNA (pEGFN1) loaded nanoparticles (gnMChi and gnMDChi) were used in the transfection. This study showed that the M(w) of phosphorylamine-modified Chi significantly affected the characteristics, cytotoxicity, gene binding capacity and transfection efficiency of the nanoparticles. CI - Copyright (c) 2021 Elsevier Ltd. All rights reserved. FAU - Celik, Sibel AU - Celik S AD - Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey. FAU - Gok, Mehmet Koray AU - Gok MK AD - Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey. FAU - Demir, Kamber AU - Demir K AD - Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey. FAU - Pabuccuoglu, Serhat AU - Pabuccuoglu S AD - Department of Reproduction and Artificial Insemination, Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey. FAU - Ozgumus, Saadet AU - Ozgumus S AD - Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, 34320, Avcilar, Istanbul, Turkey. Electronic address: saadetk@iuc.edu.tr. LA - eng PT - Journal Article DEP - 20211106 PL - England TA - Carbohydr Polym JT - Carbohydrate polymers JID - 8307156 RN - 0 (Amines) RN - 9012-76-4 (Chitosan) SB - IM MH - Amines/*chemistry MH - Carbohydrate Conformation MH - Cell Survival/drug effects MH - Chitosan/chemical synthesis/*chemistry/pharmacology MH - HEK293 Cells MH - Humans MH - Molecular Weight MH - Nanoparticles/chemistry MH - Particle Size OTO - NOTNLM OT - Chitosan OT - Gene carrier OT - Nanoparticle OT - Phosphorylation OT - Transfection EDAT- 2021/12/12 06:00 MHDA- 2022/03/17 06:00 CRDT- 2021/12/11 05:29 PHST- 2021/02/18 00:00 [received] PHST- 2021/10/09 00:00 [revised] PHST- 2021/11/05 00:00 [accepted] PHST- 2021/12/11 05:29 [entrez] PHST- 2021/12/12 06:00 [pubmed] PHST- 2022/03/17 06:00 [medline] AID - S0144-8617(21)01257-1 [pii] AID - 10.1016/j.carbpol.2021.118870 [doi] PST - ppublish SO - Carbohydr Polym. 2022 Feb 1;277:118870. doi: 10.1016/j.carbpol.2021.118870. Epub 2021 Nov 6.