本文证明,构成自组装单层 (SAM) 的分子的分子构象(除了组成和结构外)影响通过它们的电荷隧穿 (CT) 速率,在形式为 Au TS / S( CH 2 ) 2 CONR 1 R 2 //Ga 2 O 3 /EGaIn,其中R 1和R 2是不同长度的烷基链。链的长度 R 1和 R 2选择影响单层中分子的构象和构象均匀性。分子的构象影响单层的厚度(即隧道势垒宽度)及其在±1.0 V 时的整流比。当R 1 = H 时,分子有序且主要以反式扩展构象存在。然而,当R 1是烷基(例如,R 1 ≠H)时,它们的构象不再是全反式延伸的,并且分子采用更多的斜切二面角。构象类型的这种变化降低了构象顺序并影响隧穿速率。当 R 1 = R 2,当 R 1 = H 时,相对于通过具有相同总链长或厚度的 SAM 观察到的 CT 速率,CT 速率降低(高达 6.3 倍)。当 R 1 ≠ H ≠ R 2 时,存在较弱
本文证明,构成自组装单层 (SAM) 的分子的分子构象(除了组成和结构外)影响通过它们的电荷隧穿 (CT) 速率,在形式为 Au TS / S( CH 2 ) 2 CONR 1 R 2 //Ga 2 O 3 /EGaIn,其中R 1和R 2是不同长度的烷基链。链的长度 R 1和 R 2选择影响单层中分子的构象和构象均匀性。分子的构象影响单层的厚度(即隧道势垒宽度)及其在±1.0 V 时的整流比。当R 1 = H 时,分子有序且主要以反式扩展构象存在。然而,当R 1是烷基(例如,R 1 ≠H)时,它们的构象不再是全反式延伸的,并且分子采用更多的斜切二面角。构象类型的这种变化降低了构象顺序并影响隧穿速率。当 R 1 = R 2,当 R 1 = H 时,相对于通过具有相同总链长或厚度的 SAM 观察到的 CT 速率,CT 速率降低(高达 6.3 倍)。当 R 1 ≠ H ≠ R 2 时,存在较弱
[EN] AMINE-CONTAINING TRANSFECTION REAGENTS AND METHODS FOR MAKING AND USING SAME<br/>[FR] RÉACTIFS DE TRANSFECTION AMINÉS ET PROCÉDÉS DE FABRICATION ET D'UTILISATION ASSOCIÉS
申请人:LIFE TECHNOLOGIES CORP
公开号:WO2012068176A1
公开(公告)日:2012-05-24
There are provided for herein novel amine-containing transfection compounds and methods for making and using same. The compounds are generally obtained by reacting a primary amine with an unsaturated compound. Transfection complexes made using the amine-containing transfection compounds in combination with additional compounds to encapsulate biologically active agents such as nucleic acids are also provided for herein. Methods of using the transfection complexes for the in vivo or in vitro delivery of biologically active agents are also described. The transfection complexes of the present invention are highly potent, thereby allowing effective modulation of a biological activity at relatively low doses compared to analogous transfection compounds known in the art.
Compositions and methods useful in administering nucleic acid based therapies, for example association complexes such as liposomes and lipoplexes are described.
Detergent compositions capable of providing through-the-wash softeness and other fabric-care benefits are disclosed, which contain a specific amide softening agent.
本发明公开了能够提供水洗柔软度和其他织物护理功效的洗涤剂组合物,其中含有一种特定的酰胺柔软剂。
Polyester, polyquaternary compounds, compositions containing them and their use as fabric softener
申请人:WITCO CORPORATION
公开号:EP0803498A1
公开(公告)日:1997-10-29
Disclosed are compounds of the formula (1)
wherein R* and R** are C2-12 alkyl, each of A1-5 is C2-4 alkyl, each of R1-5 is -H or (C9-21 alkyl or alkenyl)-C(O)-, each of Q1-3 is -H,-CH3, -C2H5 or -CH2CH2COOH; r is 0-2; i, j and each k are each 0-1, and (i+j+k)is 0-4; and n is the number of moles of monovalent anion A to provide zero net charge.