LDP-509
Lyophilized Cationic Liposomes
DOTAP:DOPC (0.5:99.5 molar ratio)
크기 선택
About This Item
추천 제품
양식
lyophilized powder
구성
DOTAP:DOPC (0.5:99.5 molar ratio)
색상
white to off-white
평균 입자 크기
100 nm
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이 품목 | 75993 | 75990 | 76063 |
---|---|---|---|
reaction suitability core: palladium, reaction type: Heck Reaction, reaction type: Negishi Coupling, reaction type: Stille Coupling, reagent type: catalyst, reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Sonogashira Coupling, reaction type: Hiyama Coupling, reaction type: Suzuki-Miyaura Coupling | reaction suitability core: palladium, reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Heck Reaction, reaction type: Hiyama Coupling, reaction type: Negishi Coupling, reaction type: Sonogashira Coupling, reaction type: Stille Coupling, reaction type: Suzuki-Miyaura Coupling, reagent type: catalyst | reaction suitability core: palladium, reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Heck Reaction, reaction type: Hiyama Coupling, reaction type: Negishi Coupling, reaction type: Sonogashira Coupling, reaction type: Stille Coupling, reaction type: Suzuki-Miyaura Coupling, reagent type: catalyst | reaction suitability core: palladium, reaction type: Buchwald-Hartwig Cross Coupling Reaction, reaction type: Heck Reaction, reaction type: Hiyama Coupling, reaction type: Negishi Coupling, reaction type: Sonogashira Coupling, reaction type: Stille Coupling, reaction type: Suzuki-Miyaura Coupling, reagent type: catalyst |
form paste | form paste | form powder | form lumps |
Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
quality moistened with water | quality moistened with water | quality - | quality moistened with water |
contains ~50% water as stabilizer | contains ~50% water as stabilizer | contains - | contains ~50% water as stabilizer |
greener alternative product characteristics Designing Safer Chemicals | greener alternative product characteristics Designing Safer Chemicals | greener alternative product characteristics Designing Safer Chemicals | greener alternative product characteristics Designing Safer Chemicals |
일반 설명
Liposomes are extensively used to study the interaction of proteins, peptides and other molecules with the surface of a lipid membrane. One of the parameters that affects this interaction is the charge of the liposomal membrane. Liposomes are always made in aqueous environment and they are sized to the desired size in liquid state using various methods such as high-pressure extrusion through nano sized pore track etch membranes. In rare occasions, liposomes are freeze dried and proliposomes are formed in the presence of a lyoprotectant such as trehalose. Using a lyoprotectant is necessary in order to maintain the size of the liposomes after rehydration.
DOTAP is a cationic lipid and the liposomes made from DOTAP are positively charged. The amount of the positive charge depends on the percentage of the DOTAP in the formulation. For many different types of experiments and especially the studies that involve the interaction of a protein or peptide with the surface of liposomes, charged liposomes (cationic or anionic) are used. Charged liposomes are also used for many different types of blood complement studies. Cationic liposomes are mainly used for delivery of genetic material.
애플리케이션
- Liposomes are formed upon hydration of the lyophilized formulation. If the lyophilized liposomes are hydrated with solution containing a water-soluble drug, then a large percentage of the drug will stay outside of the liposomes and in non-encapsulated form. It is advised to use a micro dialysis cassette or a spin column using the right-side beads (depending on the size of your drug) and separate the drug encapsulated liposomes from free drug and perform the drug assay in order to calculate the encapsulation efficiency.
- Lyophilized liposomes are mainly recommended to be used with drugs that have a short life in aqueous solution mainly due to hydrolysis. After adding the solution of the drug to lyophilized liposomes, the liposomes should be used immediately.
- Lyophilized liposomes products should be used by scientists who understand liposome formulation and have the proper equipment in order to check the size, separate the non-encapsulated drug and do the proper assays.
- Trehalose is used as a lyoprotectant in all freeze-dried liposome formulation. The size distribution after hydration of the freeze-dried formulation will be around 100 nm.
- Freeze-dried liposomes should be kept at -20°C.
Storage Class Code
13 - Non Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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