52997-43-0Relevant articles and documents
Hierarchical Self-Assembly of Supramolecular Muscle-Like Fibers
Goujon, Antoine,Du, Guangyan,Moulin, Emilie,Fuks, Gad,Maaloum, Mounir,Buhler, Eric,Giuseppone, Nicolas
, p. 703 - 707 (2016)
An acid-base switchable [c2]daisy chain rotaxane terminated with two 2,6-diacetylamino pyridine units has been self-assembled with a bis(uracil) linker. The complementary hydrogen-bond recognition patterns, together with lateral van der Waals aggregations, result in the hierarchical formation of unidimensional supramolecular polymers associated in bundles of muscle-like fibers. Microscopic and scattering techniques reveal that the mesoscopic structure of these bundles depends on the extended or contracted states that the rotaxanes show within individual polymer chains. The observed local dynamics span over several length scales because of a combination of supramolecular and mechanical bonds. This work illustrates the possibility to modify the hierarchical mesoscopic structuring of large polymeric systems by the integrated actuation of individual molecular machines.
Naphthalene-Functionalized, Photoluminescent Room Temperature Ionic Liquids Bearing Small Counterions
Zhu, Hongxia,Zhang, Geping,Chen, Mengjun,Zhou, Shengju,Li, Guihua,Wang, Xiaolin,Zhu, Qingzeng,Li, Hongguang,Hao, Jingcheng
, p. 6286 - 6293 (2016)
Obtaining π-conjugated room temperature ionic liquids (RTILs) is difficult because of the relatively strong π-π interaction among the π-moieties. Existing strategies by using bulky counterions greatly hindered further property optimization and potential applications of these intriguing functional fluids through simple ion exchange. Herein, four naphthalene-functionalized, π-conjugated RTILs with small counterions (Br-) have been facilely synthesized with high yields. Our strategy is to attach branched alkyl chains to the cationic backbone of the target compounds (2 a-d), which effectively tune inter- and intramolecular interactions. Compounds 2 a-d have satisfactory thermal stability (up to 300 °C) and low melting points (-19 °C). Rheological measurements revealed the fluid character of 2 a-d, whose viscosity decrease with the increase of the alkyl chain length and temperature. The presence of the π-conjugated naphthalene moiety imparts 2 a-d photoluminescent properties in bulk solutions. Moreover, the absence of strong π-π stacking among the naphthalene units in solvent-free states enables them to be used as a new generation of photoluminescent inks.
IONIZABLE LIPIDS FOR NUCLEIC ACID DELIVERY
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Paragraph 00410, (2021/01/23)
The present document describes compounds, or pharmaceutically acceptable salt thereof, of a core formula (I) Wherein R1 includes an amino group. These compounds are particularly useful in the formulation and in vivo and ex vivo delivery of nucleic acid and protein therapeutics for preparing and implementing T cell transfection, gene editing, cancer therapies, cancer prophylactics, and in the preparation of vaccines.
Synthesis of Phosphonic Acid Ligands for Nanocrystal Surface Functionalization and Solution Processed Memristors
De Roo, Jonathan,Zhou, Zimu,Wang, Jiaying,Deblock, Loren,Crosby, Alfred J.,Owen, Jonathan S.,Nonnenmann, Stephen S.
, p. 8034 - 8039 (2018/10/25)
Here, we synthesized 2-ethylhexyl, 2-hexyldecyl, 2-[2-(2-methoxyethoxy)ethoxy]ethyl, oleyl, and n-octadecyl phosphonic acid and used them to functionalize CdSe and HfO2 nanocrystals. In contrast to branched carboxylic acids, postsynthetic surface functionalization of CdSe and HfO2 nanocrystals was readily achieved with branched phosphonic acids. Phosphonic acid capped HfO2 nanocrystals were subsequently evaluated as memristors using conductive atomic force microscopy. We found that 2-ethylhexyl phosphonic acid is a superior ligand, combining a high colloidal stability with a compact ligand shell that results in a record-low operating voltage that is promising for application in flexible electronics.
Messenger RNA for the delivery composition and method (by machine translation)
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Paragraph 0469; 0475; 0476; 0477; 0522; 0526, (2016/10/09)
The present invention provides compositions comprising the lipid particles of encapsulated in mRNA molecular composition. Said composite particle comprising a cationic lipid, a non-cationic lipid and encapsulated in the lipid particles of the mRNA molecules in the lipid particle. The composition (for example) is used for the introduction of human subject suffering from a mRNA molecule, they are subject in said translation in order to produce the used to improve one or more of the symptoms of the disease polypeptide. The invention also provides for the preparation of said composition of the present invention a cationic lipid. (by machine translation)
