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产品名称：avanti polar lipids/1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine/1 x 25mg/870016P-25mg

产品编号：870016P-25mg

市场价：¥1715.00

场地：美国(厂家直采)

产品分类：生化试剂>生物分子>固醇类>

联系QQ：1570468124

电话号码：4000-520-616

邮箱： info@ebiomall.com

美元价：$85.75

品牌： avanti polar lipids

公司：Avanti Lipids Polar, Inc.

公司分类：

商品介绍

23:2 Diyne PC [DC(8,9)PC]

1,2-bis(10,12-tricosadiynoyl)-sn-glycero-3-phosphocholine

Phospholipid containing photo-polymerizable diacetylene fatty acids. These phospholipids produce structures with characteristics of both biomembranes and synthetic polymers.

Notes:

The UV wavelength for efficient polymerization of diacetylene-containing lipids is 254nm.
Protect diacetylene phospholipids from light, especially in solution.
Diacetylene phospholipids will spontaneously polymerize in solution. Store the lipid as a powder for maximum stability.
Recommend storage at -20° C or less.

The photopolymerization of diacetylenic lipids is topotactic, thus the rate of polymerization depends strongly upon the correct alignment of the acetylenic monomer units. Efficient photopolymerization can only be achieved if the diacetylenic hydrocarbon chains are in a crystal-like lattice that is present at a temperatures well below the lipid transition temperature (40°C). Diacetylenic lipids are photopolymerized using a low pressure mercury arc lamp, where the photoproduct is initially blue in color and then relaxes to form a red polymer.

Experimental Procedures for the Polymerization of Sonicated Vesicles

Always protect diacetylenic lipids from UV light, thus prepare photopolymerizable membranes in yellow or red light. Prepare sonicated vesicles using a probe sonicator, following typical experimental protocols to prepare small unilamellar vesicles. (In the referenced paper, sonicated vesicles were the only photopolymerized structures obtained, presumably large unilamellar vesicles prepared by extrusion are also polymerizable and membrane curvature does not affect the efficiency of photopolymerization). An aliquot of the vesicles is irradiated at 20°C in a 1-mm quartz cell using a low-pressure Hg arc lamp (253.7 nm) 6-13 cm from the sample. Just prior to irradiation the aqueous suspension of vesicles is purged of oxygen by first flushing the photocell with argon and then capping it under an argon atmosphere.

Notes:

It has been found that the photosensitivity of diacetylenic containing membranes is dependent upon its thermal history. Membranes composed of diacetylenic lipids are light sensitive when prepared below the phase trasition but become insensitive to light after the membranes are heated above the transition temperature (40°C). The membranes remain insensitive to light even after they are cooled to 25°C, and only when they are cooled to near 0°C is light sensitivity regained.
Photopolymerization of diacetylenic and non-polymerizable lipid (DOPC, DSPC etc.) mixtures depends upon lipid miscibility. High degrees of polymerization cannot be achieved in lipid mixtures where the diacetylenic groups are diluted by other non-polymerizable lipids.

品牌介绍

Avanti Polar Lipids.jpg

Avanti Polar Lipids公司是美国著名的磷脂类产品的生产商，该公司主要为各种制药厂和研究机构提供从毫克级到公斤级乃至吨级的磷脂类和甾体类中间体和试剂。为世界范围内的研究机构和制药公司提供 1000 种以上脂类产品，由于其产品的高纯度而享誉全球。40年来，Avanti Polar Lipids公司为世界各地的研究人员和制药公司提供脂类产品。公司的产品不仅范围日益扩大，其纯度之高也是无人能及。

Avanti Polar Lipids, Inc., has a long history of 50 years creating the highest purity lipids available. Our passion for high quality and unique products is only exceeded by our excellent reputation in the marketplace. Although we are known for our lipids, we are More than Lipids. We offer solutions for the entire product cycle…Research to Commercialization.

Avanti Polar Lipids公司的主要产品和服务包括：

（1）Research Products

Highest Purity Lipid Reagents

（2）cGMP Manufacturing

API & Contract Manufacturing

（3）Adjuvants

Immunotherapy & Vaccine Development

（4）Analytical Services

Lipid Analysis

（5）Lipidomics

Mass Spec Standards, Antibodies & Lipid Toolbox

（6）Formulations