A Versatile Synthetic Route to Phosphonate-Functional Monomers, Oligomers, Silanes, and Hybrid Nanoparticles
摘要:
The highly selective single Michael addition of diethyl vinylphosphonate to alkylamines represents a very versatile synthetic route affording a large variety of novel multifunctional phosphonates including aminoalkylphosphonates, phosphonate functional silanes, and phosphonate-functionalized acrylic monomers. The hydrolysis of the phosphonate group results in a phosphonic acid functional monomer which can be used as component of dental composites exhibiting improved filler-matrix interaction. The sol-gel reaction of the phosphonate-functional silanes produced novel phosphonate-functional organic/inorganic hybrid nanoparticles with particle sizes ranging from 30 to 100 nm.
LIQUID CRYSTAL COMPOUND, OPTICAL ELEMENT, POLARIZING PLATE, IMAGE DISPLAY APPARATUS, AND OPTICAL RECORDING MATERIAL
申请人:Nakanishi Sadahiro
公开号:US20100076216A1
公开(公告)日:2010-03-25
Provided are a liquid crystal compound which can exhibit liquid-crystalline phase even at low temperatures, is excellent in uniform application performance and compatibility with another component, and suppresses inclusion of a polymeric component other than the object component, and an optical element having little defects in appearance, a polarizing plate, an image display apparatus, and an optical recording material using the liquid crystal compound. The liquid crystal compound of the present invention includes two or more chemical structures Q each represented by a general formula (1).
IONIC COMPOUND, COMPOSITION, CURED MATERIAL, HYDROGEL AND OPHTHALMIC LENS
申请人:Satake Kohsuke
公开号:US20130202551A1
公开(公告)日:2013-08-08
An ionic compound capable of providing a cured material having superior antibacterial property and oxygen permeability, and a composition containing the ionic compound, and a cured material, a hydro gel and an ophthalmic lens which have long-term sustainable antibacterial property and superior oxygen permeability. The ionic compound is represented by the following formula (1):
In formula (1), P represents a polymerizable functional group. Q
+
represents a cationic group: Z represents an n-valent siloxanyl group in which the total atomic weight of a group of constituent atoms is no less than 70 and no greater than 1,000; X
m−
represents an m-valent anion; and n is an integer of 1 to 10, where provided that n is no less than 2, a plurality of P3 and Q
+
3 are each independently as defined above.
A Systematic Study of Unsaturation in Lipid Nanoparticles Leads to Improved mRNA Transfection In Vivo
作者:Sang M. Lee、Qiang Cheng、Xueliang Yu、Shuai Liu、Lindsay T. Johnson、Daniel J. Siegwart
DOI:10.1002/anie.202013927
日期:2021.3.8
ionizable lipid series (4A3) emerged from in vitro and in vivo screening, where the 4A3 core with a citronellol‐based (Cit) periphery emerged as best. We studied the interaction between LNPs and a model endosomal membrane where 4A3‐Cit demonstrated superior lipid fusion over saturated lipids, suggesting its unsaturated tail promotes endosomal escape. Furthermore, 4A3‐Cit significantly improved mRNA delivery
[EN] LIPOCATIONIC DENDRIMERS AND USES THEREOF<br/>[FR] DENDRIMÈRES LIPOCATIONIQUES ET LEURS UTILISATIONS
申请人:UNIV TEXAS
公开号:WO2017048789A1
公开(公告)日:2017-03-23
Modular dendrimers with cationic groups and lipophilic groups are provided herein. In some aspects, the dendrimers provided herein may be formulated in compositions which contain a nucleic acid and one or more helper excipients. In some aspects, these compositions may also be used to treat diseases or disorders with a therapeutic nucleic acid.