Simple Endotoxin Detection Using Polymyxin-B-Gated Nanoparticles
"This is the peer reviewed version of the following article: Otri, Ismael, Sameh El-Sayed, Serena Medaglia, Ramón Martínez-Máñez, Elena Aznar, and Félix Sancenón. 2019. Simple Endotoxin Detection Using Polymyxin-B&-Gated Nanoparticles. Chemistry A European Journal 25 (15). Wiley: 3770 74. doi:10.1002/chem.201806306, which has been published in final form at https://doi.org/10.1002/chem.201806306. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving." ; [EN] A nanodevice based on mesoporous silica nanoparticles with rhodamine B in the pore framework, functionalized with carboxylates on the outer surface and capped with the cationic polymyxin B peptide, was used to selectively detect endotoxin in aqueous solutions with a limit of detection in the picomolar range. ; The authors thank the Spanish Government (MAT2015 64139-C4-1-R) and the Generalitat Valenciana (PROMETEO2018/024) for their support. I.O. thanks to Erasmus Mundus Programme, Action 2, Lot 1, Syria, for his predoctoral fellowship. S.S. is grateful to Spanish Ministerio de Economia y Competitividad for his Juan de la Cierva contract (FJCI-2015-27201). ; Otri, I.; El Sayed, S.; Medaglia, S.; Martínez-Máñez, R.; Aznar, E.; Sancenón Galarza, F. (2019). Simple Endotoxin Detection Using Polymyxin-B-Gated Nanoparticles. Chemistry - A European Journal. 25(15):3770-3774. https://doi.org/10.1002/chem.201806306 ; S ; 3770 ; 3774 ; 25 ; 15 ; Ulevitch, R. J., & Tobias, P. S. (1994). Recognition of endotoxin by cells leading to transmembrane signaling. Current Opinion in Immunology, 6(1), 125-130. doi:10.1016/0952-7915(94)90043-4 ; YOUNG, L. S. (1977). Gram-Negative Rod Bacteremia: Microbiologic, Immunologic, and Therapeutic Considerations. Annals of Internal Medicine, 86(4), 456. doi:10.7326/0003-4819-86-4-456 ; Mueller, M., Lindner, B., Kusumoto, S., Fukase, K., Schromm, A. B., & Seydel, U. (2004). Aggregates Are the Biologically Active Units of Endotoxin. Journal of Biological Chemistry, ...