V2EX lipophilicity

Lipophilicity

定义 Definition

Lipophilicity(亲脂性)指一种分子/化合物对脂质(油脂、非极性环境)的“偏好程度”,也就是它更容易溶于油相而不是水相的性质。常用于药物化学与药代动力学中,常用指标包括 logP(辛醇/水分配系数)与 logD(考虑电离状态的分配系数)。该词也可在更广义上指“疏水性倾向”,但在科研语境里通常更强调“分配到脂相的能力”。

发音 Pronunciation (IPA)

/lpoflsti/

例句 Examples

Small changes in a molecule can greatly increase its lipophilicity.
分子结构的微小变化就可能显著提高它的亲脂性。

In drug design, balancing lipophilicity is crucial because overly lipophilic compounds may have poor aqueous solubility and higher nonspecific binding, while insufficient lipophilicity can limit membrane permeability.
在药物设计中,平衡亲脂性非常关键:亲脂性过强可能导致水溶性差、非特异性结合增多;亲脂性不足又可能限制跨膜通透性。

词源 Etymology

来自 lipo-(脂、脂肪,源自希腊语 lípos)+ -philic(喜爱、亲和,源自希腊语 phílos “爱、友好”)+ -ity(名词后缀,表示性质)。字面意思就是“对脂的亲和性”。

相关词 Related Words

文学与经典著作中的用例 Literary Works

  • 《The Practice of Medicinal Chemistry》(Camille G. Wermuth 主编):在药物性质优化章节中讨论 lipophilicity 与活性、选择性、ADME 的权衡。
  • 《Foye’s Principles of Medicinal Chemistry》:在理化性质与构效关系(SAR/QSAR)部分频繁使用 lipophilicity(常结合 logP/logD)。
  • 《Goodman & Gilman’s The Pharmacological Basis of Therapeutics》:在药物吸收与分布相关内容中涉及脂溶性/亲脂性对跨膜与组织分布的影响(术语在不同版本与章节中出现频率不一)。
  • Lipinski “Rule of Five” 相关论文与综述(药物样性研究经典文献):常用 lipophilicity(例如以 logP 表征)讨论口服吸收可能性与开发风险。
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