形式
powder or solid
质量水平
分子量
5,000-25,000
颜色
white to light yellow
应用
cell analysis
储存温度
−20°C
InChI
1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key
HNDVDQJCIGZPNO-YFKPBYRVSA-N
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一般描述
聚-L-组氨酸是一种两性化合物。结构中的咪唑环可进行质子化−去质子化反应。
应用
聚L-组氨酸已用于：
- 作为聚阳离子分散多壁碳纳米管(MWCNT)
- 作为多离子化合物研究其破坏细胞外包膜病毒膜的能力
- 通过在细胞水平上和在体内的抗朊毒体(prion)分析，进行其抗朊毒体活性筛选
生化/生理作用
聚L-组氨酸(Phis)共聚物具有生物相容性、pH响应性和较低的毒性。它具有逃逸内溶酶体的功能。聚L组氨酸与聚乙二醇−聚(d,l-丙交酯) (PEG-PLA)的共聚物可有效递送阿霉素。pH敏感性聚l-组氨酸共聚物胶束可在酸性微环境中递送抗癌药物。
分析说明
分子量 (MALLS)。
其他说明
有关聚氨基酸的其他技术信息，请访问 聚氨基酸常见问题解答资源。
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
Preparation and evaluation of poly (L-histidine) based pH-sensitive micelles for intracellular delivery of doxorubicin against MCF-7/ADR cells
Jia N, et al.
Asian Journal of Pharmaceutical Sciences , 12(5), 433-441 (2017)
Electrochemical determination of ascorbic acid and paracetamol in pharmaceutical formulations using a glassy carbon electrode modified with multi-wall carbon nanotubes dispersed in polyhistidine
Dalmasso PR, et al.
Sensors and Actuators B, Chemical, 173(5), 732-736 (2012)
Wooram Park et al.
Biomaterials, 33(34), 8848-8857 (2012-09-11)
For long-term, sustained protein delivery, a new, star-shaped block copolymer composed of methoxy poly(ethylene glycol) (mPEG), branched oligoethylenimine (bOEI), and poly(l-histidine) (pHis) was synthesized via the multi-initiation and ring-opening polymerization (ROP) of His N-carboxy anhydride (NCA) on bOEI with a
Masaharu Kondo et al.
Biomacromolecules, 13(2), 432-438 (2012-01-14)
A polyhistidine (His) tag was fused to the C- or N-terminus of the light-harvesting (LH1)-α chain of the photosynthetic antenna core complex (LH1-RC) from Rhodobacter sphaeroides to allow immobilization of the complex on a solid substrate with defined orientation. His-tagged
Rong Liu et al.
International journal of nanomedicine, 7, 4433-4446 (2012-08-28)
Two methoxyl poly(ethylene glycol)-poly(L-histidine)-poly(L-lactide) (mPEG-PH-PLLA) triblock copolymers with different poly(L-histidine) chain lengths were synthesized. The morphology and biocompatibility of these self-assembled nanoparticles was investigated. Doxorubicin, an antitumor drug, was trapped in the nanoparticles to explore their drug-release behavior. The drug-loaded
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