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Background
liposome Àº 50nm ¿¡¼ 5§ ±îÁö ´Ù¾çÇÑ Å©±â·Î Á¸ÀçÇϸç ÇöÀç ¾à ½Ê ¼ö°³ÀÇ liposome ±â¹ÝÀÇ ÀǾàÇ°ÀÌ
½ÃÁß¿¡ ÆǸŵǰí ÀÖ´Ù.
±×Áß¿¡¼ °¡Àå À¯¸íÇÑ liposomal drug Àº ±¤¹üÀ§ Ç×¾ÏÁ¦·Î ³Î¸® »ç¿ëµÇ´Â doxorubicin À¸·Î¼
PEG liposome À» ±â¹ÝÀ¸·Î ÇÏ´Â Doxil °ú non-pegylated liposomes À» ±â¹ÝÀ¸·Î ÇÏ´Â Myocet µÎ Á¾·ù°¡ ÀÖ´Ù.
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¿ªÇÐÀûÀ¸·Î ¸Å¿ì ¾ÈÁ¤ÇÑ oil-in-water nanoemulsion Àº Á¤¸ÆÁÖ»ç, ´«, ÄÚ, °æ±¸, Æó µî ´Ù¾çÇÑ
route ·Î Åõ¿©µÇ´Â ¾àÁ¦¿¡ ³Î¸® »ç¿ëµÇ´Â ÀÖÀ¸¸ç Å©°Ô ´ÙÀ½ µÎ°¡Áö ¸ñÀûÀ¸·Î ¸¹ÀÌ »ç¿ëµÇ°í ÀÖ´Ù.
1) parenteral nutrition
2) colloidal drug carriers.
nanoemulsions À» ±â¹ÝÀ¸·Î ÇÏ´Â ¾àÇ°À¸·Î´Â Diprivan (Propofol), Etomidat-Lipuro (Etomidate), Lipotalon,
Restasis, Gengraf, ±×¸®°í Norvir (Ritonavir) µîÀÌ ÀÖ´Ù.
nanemulsion ÀÇ µ¶¼º°ú ¾ÈÁ¤¼ºÀ» È®ÀÎÇÏ´Â 2°¡Áö Áß¿äÇÑ Ç׸ñÀÌ Àִµ¥
ù°´Â nanoemulsion ÀÇ MDS (lipid globule mean droplet size) ÀÌ°í µÑ°´Â PSD (emulsion ÀÇ Å©±âºÐÆ÷µµ) ÀÌ´Ù.
¹Ì±¹¾àÀü(Ú¸ÏÐå·îð, United States Pharmacopeia) ¿¡¼´Â Á¤¸Æ¿µ¾çÁ¦¿¡ »ç¿ëµÇ´Â MDS ´Â 500nm ÀÌÇÏ¿©¾ß ÇÏ°í
5 § ÀÌ»óÀÇ Å©±â¸¦ °¡Áö´Â nanoemulsion ÀÌ 0.05% À̳»¿©¾ß ÇÑ´Ù°í ±ÔÁ¤ÇÏ°í ÀÖ´Ù.
ÀÌ°ÍÀº ¸Å¿ì Áß¿äÇÑ ³»¿ëÀε¥ ¸¸¾à 5 § ÀÌ»óÀÇ Å©±â¸¦ °¡Áö´Â nanoemulsion ÀÌ 0.05% ÀÌ»ó Á¸ÀçÇϸé
¸¹Àº ºÎÀÛ¿ëÀ» ÀÏÀ¸Å°´Â °ÍÀ¸·Î ¾Ë·ÁÁ® ÀÖ´Ù.
Examples of Drug-Containing Nanoemulsions and Liposomes Produced by High-Intensity Ultrasound
´Ù¾çÇÑ ¾Ç¼ºÁ¾¾çÀÇ Ã³Ä¡¿¡ ³Î¸® »ç¿ëµÇ´Â ¼Ò¼ö¼º ¾à¹°ÁúÀÎ Zn-Phtalocyanine (ZnPC) ÀÇ Àü´ÞÀ» À§ÇØ
nanoemulsion °ú liposome ÀÌ ³Î¸® »ç¿ëµÇ°í Àִµ¥ °íÃâ·Â ÃÊÀ½ÆĺлêÀåºñ¸¦ ÀÌ¿ëÇϸé
Zn-Phtalocyanine (ZnPC) ÀÇ Àü´Þ¿¡ ¸Å¿ì È¿À²ÀûÀÎ nanoemulsion °ú liposome À» Á¦Á¶ÇÒ ¼ö
ÀÖ´Ù´Â °ÍÀ» º¸¿©ÁÖ´Â ½ÇÇèÀ» ÁøÇàÇÏ¿´´Ù..
ÃÑ 4Á¾·ùÀÇ sample À» ´ÙÀ½°ú °°ÀÌ ÁغñÇÏ¿´´Ù.
1) Emulsion 1 (Intralipid-type emulsion): soybean oil-in-water nanoemulsion consisting    
of soybean oil (10%), L-a-Phosphatilylcholine, Type IV-S (1.2%), glycerol (2.25%),    
water (86.55%)
2) Emulsion 1 + 0.05 mg/ml ZnPC : includes ethanol (< 2%)
3) Emulsion 2 : soybean oil-in-water nanoemulsion consisting of Soybean oil (10%),    
Tween 80 (8.7%), Span 80 (1.3%), water (80%)); 3) Liposomes:     L-a-Phosphatilylcholine,
Type IV-S (2.4%), phosphate buffer saline (97.6%).
4) Emulsion 2 + 0.05 mg/ml ZnPC : includes ethanol (< 2%)
35mm Á÷°æÀÇ High-intensity Probe ¸¦ ÀåÂøÇÑ °íÃâ·Â ÃÊÀ½ÆĺлêÀåºñ¸¦ ÀÌ¿ëÇÏ¿© ÃÊÀ½ÆÄÀ¯È¸¦ ÁøÇàÇÏ¿´À¸¸ç
À̶§ amplitude ´Â 75§ ¸¦ »ç¿ëÇÏ¿´´Ù.
Test by conventional probe
À§ Å×ÀÌºí¿¡¼ º¸µíÀÌ °íÃâ·Â ÃÊÀ½ÆĺлêÀåºñ¸¦ ÀÌ¿ëÇÏ¿© Á¦Á¶µÈ nanoemulsions °ú liposomes Àº
¹Ì±¹¾àÀü(Ú¸ÏÐå·îð, United States Pharmacopeia) ¿¡¼ ±ÔÁ¤ÇÑ ¹üÀ§³»ÀÇ ÀÔÀÚÅ©±â¿Í ºÐÆ÷¸¦ °¡Áö°í ÀÖ´Ù´Â °ÍÀ»
¾Ë ¼ö ÀÖÀ¸¸ç ¶ÇÇÑ ´ÙÀ½°ú °°Àº Áß¿äÇÑ Æ¯¼ºÀ» °¡Áö°í ÀÖ´Ù´Â °ÍÀ» ¾Ë ¼ö ÀÖ´Ù.
1) sample 1, 2 ¿¡ ¿¡Åº¿ÃÀ» Ãß°¡ÇÏ¿©µµ droplet size ¿¡ Å« ¿µÇâÀ» ¹ÌÄ¡Áö ¾Ê¾Ò´Ù.
2) 0.45mm filter ¸¦ ÇÑ sample °ú ÇÏÁö ¾ÊÀº sample ÀÇ droplet size °¡ µ¿ÀÏÇÏ¿´´Ù.
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