A cationic amphiphile for facilitating transport of a biologically active molecule into a cell has the structure A-F-D, in which A is a lipid anchor, D is a head group, and F is a spacer group having the structure described herein. A method for facilitating transport of a biologically active molecule into a cell comprises preparing a lipid mixture comprising a cationic amphiphile having structure A-F-D, preparing a lipoplex by contacting the lipid mixture with a biologically active molecule; and contacting the lipoplex with a cell, thereby facilitating transport of the biologically active molecule into the cell.
Compounds of formula (I):
or salts or solvate thereof, wherein: n and N independently represent an integer 2 to 12;
m
1
and m
2
independently represent an integer 1 to 15; and
R
1
and R
2
independently represent —(CO)
x
C
1-9
alkyl or —(CO)
x
C
1-9
fluoroalkyl, which fluoroalkyl moiety contains at least 1 fluorine atom and not more than 3 consecutive perfluorocarbon atoms wherein x represents 0 or 1, as well as pharmaceutical formulations containing such compounds and processes for the manufacture of such compounds are disclosed. Intermediates of such compounds and processes for the manufacture of such intermediates are also disclosed.
Biological imaging emulsions containing alkyl- or alkylglycerophosphoryl
申请人:HemaGen/PFC
公开号:US05439669A1
公开(公告)日:1995-08-08
Oil and water emulsions containing alkylphosphoryl choline or alkylglycerophosphoryl choline surfactants are disclosed. The surfactants have the following general structures: ##STR1## In the above general structures, R.sub.1, R.sub.2 or R.sub.3 is alkyl, alkenyl, fluoroalkyl and alkenyl; and PC is the phosphoryl choline. The emulsions are useful as oxygen transport agents, artificial bloods or red blood cell substitutes. The emulsions are also useful as contrast agents for biological imaging by the modalities of nuclear magnetic resonance, x-ray and ultra sound.
Red blood cell substitute emulsions containing alkyl- or
申请人:HemaGen/PFC
公开号:US05439944A1
公开(公告)日:1995-08-08
Oil and water emulsions containing alkylphosphoryl choline or alkylglycerophosphoryl choline surfactants are disclosed. The surfactants have the following general structures: ##STR1## In the above general structures, R.sub.1, R.sub.2 or R.sub.3 is alkyl, alkenyl, fluoroalkyl and alkenyl; and PC is the phosphoryl choline. The emulsions are useful as oxygen transport agents, artificial bloods or red blood cell substitutes.
Emulsions containing alkyl- or alkylglycerophosphoryl choline
申请人:HemaGen/PFC
公开号:US05304325A1
公开(公告)日:1994-04-19
Oil and water emulsions containing alkylphosphoryl choline or alkylglycerophosphoryl choline surfactants are disclosed. The surfactants have the following general structures: ##STR1## In the above general structures, R.sub.1, R.sub.2 or R.sub.3 is alkyl, alkenyl, fluoroalkyl and alkenyl; and PC is the phosphoryl choline. The emulsions are useful as oxygen transport agents, artificial bloods or red blood cell substitutes.