相关实验视频
Updated: Sep 13, 2025

02:26
Intracranial Pharmacotherapy and Pain Assays in Rodents
Published on: April 9, 2019
5.3K
微封装止痛药作为一种类似形式的医学
Aidana Nakipekova1, Bates Kudaibergenova1, Arkady S Abdurashitov2,3
1Faculty of Chemistry and Chemical Technology, Al-Farabi Kazakh National University, 71 Al-Farabi Ave., Almaty 050042, Kazakhstan.
Pharmaceutics
|July 30, 2025
概括
这项研究使用聚乳酸 (PLA) 和聚烯酸 (PCL) 开发了用于控制药物输送的微粒. 优化的聚合物比率提高了水溶性药物的药物释放和结构稳定性.
科学领域:
- 材料科学 材料科学 材料科学
- 制药科学 制药科学
- 药物输送系统 药物输送系统
背景情况:
- 控制的药物输送系统对于提高治疗疗效和患者服药性至关重要.
- 微粒制造提供了一个多功能平台,用于封装各种药物类型,包括水溶性化合物.
- 优化微粒子特性是实现所需药物释放概况和稳定性的关键.
研究的目的:
- 开发微粒制造方法,以控制水溶性药物的释放.
- 为了确定药物封装的最佳聚合物类型,颗粒大小和形态.
- 为了增强结构稳定性和延长活性物质的释放.
主要方法:
- 微粒通过在预先图案的表面上造聚合物,药物加载和密封制造的微粒.
- 使用的聚乳酸 (PLA) 和聚 (α-caprolactone) (PCL) 在70: 30的比例颗粒墙.
- 使用扫描电子显微镜 (SEM) 和光学显微镜对微粒进行了鉴定.
主要成果:
- 微粒子的大小和体积取决于模板几何和聚合物度.
- 量身定制的聚合物组成产生了一致的形态和适当的药物化率.
- 通过物理相互作用形成PLA和PCL混合物.
结论:
- 具有最佳聚合物组成的微粒体表现出增强的药物释放特性.
- 使用精确的聚合物比率和度实现可行的微封装,以长期保持药物的效果.
- 这种方法对开发水溶性药物的持续释放配方充满希望.
相关概念视频
Opioid Analgesics: Synthetic and Semisynthetic Opioids
437
Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
437
Analgesia and Pain Management
803
Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
803
Opioid Analgesics: Morphine and Other Natural Cogeners
366
Opioids are a class of drugs that mimic endogenous opioid peptides and act on opioid receptors, and help in pain relief. These compounds are classified as natural, synthetic, or semi-synthetic. Natural opioids, like morphine, codeine, and thebaine, are derived from the opium poppy plant (Papaver somniferum or Papaver album) and are termed opiates. Synthetic opioids are artificial, while semi-synthetic opioids combine natural and synthetic compounds. Morphine, a prototypical opioid, possesses a...
366
Drug Delivery: Enteral Route
729
The enteral drug administration involves three primary routes: oral, sublingual, and buccal. Oral ingestion is the most prevalent, safe, economical, and convenient method for drug administration. However, it has certain drawbacks, including limited absorption due to the drug's low water solubility or poor membrane permeability, possible emesis from GI mucosa irritation, destruction of drugs by digestive enzymes or low gastric pH, and irregular absorption along with food or other drugs.
729
Drug Delivery: Miscellaneous Routes
468
Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection, and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
468
Local Anesthetics: Common Agents and Their Applications
555
Local anesthetics (LAs) are commonly used for various applications in medical and dental procedures. Some of the common agents used are cocaine, lidocaine, and bupivacaine.
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
Cocaine is an ester of benzoic acid and methylecgogine. It is used to anesthetize and vasoconstrict locally. Currently, it is used primarily for topical applications. It is beneficial for surgeries on the upper respiratory tract, providing anesthesia and shrinking the mucosa. Cocaine in the form of cocaine hydrochloride is...
555

