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Potential applications of Folate-conjugated Chitosan Nanoparticles for Targeted delivery of Anticancer drugs 叶酸共轭壳聚糖纳米粒子在靶向递送抗癌药物中的潜在应用
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00045
Prakash Nathaniel Kumar Sarella, Pavan Kumar Thammana
Folate-conjugated chitosan nanoparticles represent a promising nanoplatform for targeted delivery of anticancer drugs. The nanoparticle carrier can protect the therapeutic agents from degradation and offer the ability to target cancer cells overexpressing folate receptors. This review summarizes recent research progress in synthesizing folate-conjugated chitosan nanoparticles as well as evaluating their potential as targeted drug delivery systems. The chemical conjugation of folic acid to chitosan is first discussed followed by an overview of different techniques for preparation of stable folate-conjugated chitosan nanoparticles less than 200 nm in size. Recent studies loading various anticancer drugs into these nanoparticles and investigating their in vitro cytotoxicity against multiple cancer cell lines are then summarized. The results indicate that folate-conjugated nanoparticles exhibit higher cytotoxicity and targeting efficiency compared to non-conjugated nanoparticles due to receptor-mediated endocytosis. Lastly, future challenges and opportunities are outlined including in vivo investigations to determine the effectiveness, toxicity, and pharmacokinetics of folate-conjugated chitosan nanoparticle systems as well as their potential clinical translation as targeted drug carriers for cancer chemotherapy.
叶酸共轭壳聚糖纳米粒子是一种很有前景的靶向递送抗癌药物的纳米平台。这种纳米颗粒载体能保护治疗药物不被降解,并能靶向过度表达叶酸受体的癌细胞。本综述总结了合成叶酸共轭壳聚糖纳米粒子的最新研究进展,并评估了其作为靶向给药系统的潜力。首先讨论了叶酸与壳聚糖的化学共轭,然后概述了制备尺寸小于 200 nm 的稳定叶酸共轭壳聚糖纳米粒子的不同技术。然后概述了将各种抗癌药物加入这些纳米颗粒并研究其对多种癌细胞系的体外细胞毒性的最新研究。结果表明,与非共轭纳米粒子相比,叶酸共轭纳米粒子由于受体介导的内吞作用而表现出更高的细胞毒性和靶向效率。最后,概述了未来的挑战和机遇,包括体内研究以确定叶酸共轭壳聚糖纳米粒子系统的有效性、毒性和药代动力学,以及其作为癌症化疗靶向药物载体的潜在临床应用。
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引用次数: 0
Formulation of Gel Preparations of Ethanol Extract of Indian Strawberry (Duchesnea indica (Jacks.) Focke.) 印度草莓(Duchesnea indica (Jacks.) Focke.)乙醇提取物凝胶制剂的配方
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00043
A. Mursyid, R. Waris, Wahida W. Ilham, Asni Amin
The anti-inflammatory activity of Indian strawberry leaves is 0.31 percent DAI. For the treatment of inflammation, gel formulations are selected as effective penetration agents. The purpose of this work was to manufacture and test a pharmaceutically stable gel formulation of ethanol extract of Indian strawberry (Duchesnea indica (Jacks.) Focke] leaf with anti-inflammatory properties. This experimental study approach involved developing four formulas: F1 with 3% NaCMC, F2 with 4% NaCMC, F3 with 8% HPMC, and F4 with 9% HPMC. Then, the next test was evaluate the physical stability of the formulation using the following test parameters: organoleptic, pH, homogeneity, spreadability, and viscosity at 5°C and 35°C. The organoleptic test revealed that there was no difference between the four formulae in the color, odor, and consistency series. Each of the pH formulae that passed the pH test were suitable for topical application to the skin. For the homogeneity test all formulas are homogeneous. The best dispersion for the dispersion test was found in formulas 2, 3, and 4. Based on the rheogram, F1, F2, F3, and F4 had pseudoplastic flow characteristics. According to the results of the research conducted, the ethanol extract of Indian strawberry leaves can be formed into gel formulations based on HPMC and NaCMC. The gel formulation formula for ethanol extract of Indian strawberry leaves is pharmaceutically stable.
印度草莓叶的抗炎活性为 0.31% DAI。为治疗炎症,凝胶制剂被选为有效的渗透剂。这项工作的目的是制造和测试具有消炎特性的印度草莓(Duchesnea indica (Jacks.) Focke]叶乙醇提取物的药用稳定凝胶配方。该实验研究方法包括开发四种配方:F1 含 3% NaCMC,F2 含 4% NaCMC,F3 含 8% HPMC,F4 含 9% HPMC。然后,使用以下测试参数评估配方的物理稳定性:感官、pH 值、均匀性、铺展性和 5°C 和 35°C 时的粘度。感官测试表明,四种配方在颜色、气味和稠度方面没有差异。通过 pH 值测试的每种配方都适合皮肤局部使用。在均匀性测试中,所有配方都是均匀的。在分散性测试中,配方 2、3 和 4 的分散性最好。根据流变图,F1、F2、F3 和 F4 具有假塑性流动特性。根据研究结果,印度草莓叶乙醇提取物可制成基于 HPMC 和 NaCMC 的凝胶配方。印度草莓叶乙醇提取物的凝胶配方具有药用稳定性。
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引用次数: 0
Solubility Enhancement of Lansoprazole by using Solid Dispersion Technique 利用固体分散技术提高兰索拉唑的溶解度
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00037
Rohit S. Bhamare, Rajendra K. Surawase, Jayshree S. Bhadane
In the existing study focused on the solubility enhancement of lansoprazole by using solid dispersion technique. Lansoprazole is proton pump inhibitor (PPI). Lansoprazole is used for the treatment of gastric ulcer. Lansoprazole is the Class II Drug of Biopharmaceutical Classification system. By using novel solid dispersion methods to enhance the oral solubility of poor water-soluble drug. Lansoprazole has the low solubility and high permeability. Hence to enhance the solubility of lansoprazole we prepared the Lansoprazole solid dispersion (SD) with PVP K30, Poly Ethylene Glycol 6000 (PEG 6000) and Poloxamer 407. Lansoprazoledissolving tablet were formulated using various superdisintegrants like Crospovidone and Sodium Starch Glycolate by Direct compression. The prepared the tablet is evaluated at various parameters like weight variation, hardness, friability, disintegration time, drug content uniformity and In-vitro dissolution. The In-vitro Drug release study of solid dispersions SD6 show the high drug release around 98.93%. Overall, in the all formulations F12 which contains 6%, 3.75% and 10% of Crospovidone, SSG and MCC release the 98.93% drug is the best formulation.
现有研究的重点是利用固体分散技术提高兰索拉唑的溶解度。兰索拉唑是质子泵抑制剂(PPI)。兰索拉唑用于治疗胃溃疡。兰索拉唑是生物制药分类系统中的第二类药物。通过使用新型固体分散方法来提高水溶性差的药物的口服溶解度。兰索拉唑具有低溶解度和高渗透性的特点。因此,为了提高兰索拉唑的溶解度,我们用 PVP K30、聚乙二醇 6000(PEG 6000)和 Poloxamer 407 制备了兰索拉唑固体分散体(SD)。兰索拉唑溶片是用各种超崩解剂(如克罗波维酮和淀粉乙醇酸钠)通过直接压片法配制而成的。对所制备的片剂进行了各种参数的评估,如重量变化、硬度、易碎性、崩解时间、药物含量均匀性和体外溶解度。固体分散体 SD6 的体外药物释放研究表明,药物释放率高达 98.93%。总之,在所有配方中,F12(含有 6%、3.75% 和 10%的氯磺丙酮)、SSG 和 MCC 的药物释放率最高,达到 98.93%。
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引用次数: 0
Nanocrystallization - A Tool for Enhancement of Solubility and Dissolution Rate for Water Insoluble Drugs 纳米结晶--提高水溶性药物溶解度和溶解速率的工具
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00048
Rajashri Shinde, Dhanshri Dhanbhar, Nikita Narad, Shivani Khandagale
An innovative method to increase the solubility of water insoluble drug by using Nanocrystallization. Various factor like solubility, dissolution drug release, temperature, ph, have its effect on these process. Solubility is the ability of a substance, the solute, to form a solution with another substance, the solvent. Solutes are classified as highly soluble, sparingly soluble, or insoluble based on the concentration. Dissolution is ability of molecule to get break down in it. There are seven different types of dissolution apparatus defined in the United States Pharmacopeia (USP)-basket type, paddle type, reciprocating cylinder, and flow through cell, paddle over disc, rotating cylinder, and reciprocating disc. Drug release is when drug solutes migrate from the initial position in the polymeric system to the polymer's outer surface and then to the release medium. It is directly related to the drug stability. There are many mechanisms by which the drug release can be controlled in a system: dissolution, diffusion, osmosis, partitioning, swelling, erosion, and targeting. Drug Stabilizers are compounds, usually polysaccharides, which are added to products to provide and preserve structure, stability, and viscosity. Broadly there are 3 methods for the nanocrystallizationi.e. Bottom up technique, Top down technique and combination technique.
利用纳米结晶提高水不溶性药物溶解度的创新方法。溶解度、溶解药物释放、温度、ph 值等各种因素都会对这些过程产生影响。溶解度是指一种物质(溶质)与另一种物质(溶剂)形成溶液的能力。根据浓度的不同,溶质可分为高溶、微溶和不溶。溶解是分子在其中分解的能力。美国药典》(USP)规定了七种不同类型的溶解器--篮式、桨式、往复式圆筒、流经池、圆盘上的桨、旋转圆筒和往复式圆盘。药物释放是指药物溶质从聚合物系统中的初始位置迁移到聚合物的外表面,然后再迁移到释放介质中。它与药物的稳定性直接相关。在一个系统中,有许多机制可以控制药物的释放:溶解、扩散、渗透、分割、膨胀、侵蚀和靶向。药物稳定剂是添加到产品中的化合物,通常是多糖,用于提供和保持结构、稳定性和粘度。纳米结晶大致有三种方法,即自下而上技术、自上而下技术和组合技术。
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引用次数: 0
Enhancement of water solubility of Poorly Water-soluble drug using milk protein as carrier 以牛奶蛋白为载体提高水溶性差的药物的水溶性
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00038
Jaydeep S Chauhan, Jigar Vyas, U.M. Upadhyay
Introduction: The two key challenges for formulation scientists in developing therapeutic delivery are the dissolution and solubility of a low aqueous-soluble drug. Many powerful drug molecules do not have therapeutic effects owing to solubility concerns, yet they can be dangerous when administered in large dosages. Solid dispersion technology is a good method for increasing solubility and dissolution, along with bioavailability. Material and Methods: solid dispersion of rosuvastatin was developed using casein, infant formula, and poly-ethylene glycol 6000 by conventional fusion method and characterized for several characterization parameters. Conclusion: Solid dispersion of rosuvastatin was efficiently developed. The dissolution of rosuvastatin solid dispersion was discovered to be noticeably increased as compared to rosuvastatin API, according to the current investigation, SD of rosuvastatin was a superior alternative for increasing the dissolution of weakly soluble therapeutic agent.
导言:制剂科学家在开发治疗给药过程中面临的两大挑战是低水溶性药物的溶解性和可溶性。许多强效药物分子由于溶解性问题而无法产生治疗效果,但如果大剂量给药又会造成危险。固体分散技术是提高溶解度、溶出度和生物利用度的好方法。材料与方法:使用酪蛋白、婴儿配方奶粉和聚乙二醇 6000,通过传统的熔融法研制出了罗伐他汀的固体分散体,并对多个表征参数进行了表征。结论罗伐他汀的固体分散体得到了有效的开发。与罗伐他汀原料药相比,罗伐他汀固体分散液的溶解度明显提高。
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引用次数: 0
Improve Bioequivalence predictions with PAMPA Dissolution using Etoricoxib and five other Drug Formulations 利用依托考昔和其他五种药物制剂的 PAMPA 溶解度改进生物等效性预测
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00036
Joe Chou, Roger Lai, Jason Chou, Shelly Fu, Li Chuan Chung
In the generic drug formulation development, pilot bioequivalence (BE) study with a small group of subjects is the current practice for oral formulation prediction. However, due to the difficulty in differentiating the variation between subject and drug formulation with the current BE practice,a new instrument called PAMPA Dissolution is proposed to eliminate the subjects variation and to enhance the correlation between in vitro to in vivo absorption in BE study. PAMPA Dissolution simultaneously measures drug dissolution (Cb) and permeation (Pe), following the validated oral drug absorption equation F (drug absorbed) = Cb*Pe*Area. The use of biorelevant media further allows this device to mimic in vivo conditions closely. Formulations of 60 mg etoricoxib tablets were studied to verify system reproducibility and BE prediction to demonstrate the potential of PAMPA Dissolution in generic drug development. The BE predictions between generic and brand etoricoxib tablets (test/reference) from this system produced a Cmax value of 99.0% and AUC value of 99.1%, indicating that PAMPA Dissolution predictions conform with bioequivalence results. Other oral formulations of valsartan/hydrochlorothiazide, ezetimibe, telmisartan, and amlodipine were also tested for their permeation (Pe) by PAMPA Dissolution. Results of drug permeation compared to the literature values indicates that the PAMPA Dissolution is reliable and precise in formulation development.
在仿制药制剂开发过程中,目前的口服制剂预测方法是采用小剂量受试者进行生物等效性(BE)试验研究。然而,由于目前的生物等效性研究难以区分受试者和药物制剂之间的差异,我们提出了一种名为 PAMPA Dissolution 的新仪器,以消除受试者之间的差异,并增强生物等效性研究中体外吸收与体内吸收之间的相关性。PAMPA Dissolution 可同时测量药物的溶解度(Cb)和渗透度(Pe),并遵循有效的口服药物吸收方程 F(药物吸收)= Cb*Pe*Area 。生物相关介质的使用进一步使该设备能够密切模拟体内条件。对 60 毫克依托考昔片的配方进行了研究,以验证系统的重现性和 BE 预测,从而证明 PAMPA Dissolution 在仿制药开发中的潜力。该系统对仿制药和品牌依托考昔片(测试/参考)的生物等效性预测结果显示,Cmax 值为 99.0%,AUC 值为 99.1%,表明 PAMPA Dissolution 预测结果与生物等效性结果相符。PAMPA Dissolution 还测试了缬沙坦/氢氯噻嗪、依西美布、替米沙坦和氨氯地平的其他口服制剂的渗透性(Pe)。与文献值相比,药物渗透的结果表明 PAMPA Dissolution 在制剂开发中是可靠和精确的。
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引用次数: 0
Formulation and Evaluation of Mouth Dissolving Films of Captopril by using Natural Polymers. 使用天然聚合物配制和评估卡托普利口腔溶解膜
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00042
Pushkar S. Chavan, Avish D. Maru, Majid S. Khan
Mouth dissolving films (MDFs) of captopril were developed using natural polymers, including pectin, sodium alginate, and guar gum, in combination with the plasticizer polyethylene glycol 400 (PEG 400) and other ingredients like saliva stimulating agent, sweetener and super disintegrator etc. A total of nine formulations were prepared using different concentrations of the polymers by the solvent casting method. The objective of the study was to evaluate the suitability of these polymers and the effect of polymer concentration on the performance of the MDFs. The MDFs were evaluated based on various parameters, including folding endurance, dissolution, and disintegration studies. Among the different formulations, batch F4, which contained 50% (w/w) pectin as the polymer and 17% (w/w) PEG 400 as the plasticizer, exhibited satisfactory results. The folding endurance test indicated that batch F4 had good flexibility and strength, suggesting that it could withstand repeated folding without breaking or cracking. The in vitro dissolution study revealed that the MDFs of batch F4 exhibited rapid and complete drug release in 6 min, indicating their potential for enhanced drug delivery. The disintegration study further confirmed that the MDFs disintegrated within a short time, ensuring rapid disintegration and dissolution of the drug in the oral cavity.
采用天然聚合物(包括果胶、海藻酸钠和瓜尔豆胶)、增塑剂聚乙二醇 400(PEG 400)以及唾液刺激剂、甜味剂和超级崩解剂等其他成分,开发了卡托普利口腔溶解膜(MDF)。通过溶剂浇注法,使用不同浓度的聚合物共制备了九种配方。研究的目的是评估这些聚合物的适用性以及聚合物浓度对中密度纤维板性能的影响。根据各种参数对中密度纤维板进行了评估,包括耐折性、溶解和崩解研究。在不同的配方中,含有 50%(重量比)果胶作为聚合物和 17%(重量比)PEG 400 作为增塑剂的 F4 批次取得了令人满意的结果。折叠耐久性测试表明,F4 批次具有良好的柔韧性和强度,表明它可以经受反复折叠而不会断裂或开裂。体外溶出度研究表明,批次 F4 的中密度纤维板在 6 分钟内迅速完全释放药物,这表明它们具有增强药物输送的潜力。崩解研究进一步证实,中密度纤维板在短时间内崩解,确保了药物在口腔中的快速崩解和溶解。
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引用次数: 0
A Review on Dissolution Method Development for Drug Products: Current Regulations and Prospects 药物溶出方法开发综述:现行法规与前景
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00047
Prashant Gupta, Dipti H. Patel, Nilesh Dhameliya, Pratik Modh, Vishvesh Joshi
Dissolution (in vitro release) testing has been the subject of intense scientific and regulatory interest over the past several decades. As an analytical methodology, in vitro dissolution testing measures drug release into the dissolution media. The U. S. Food and Drug Administration (USFDA) Dissolution Database was reviewed and screened regarding the type of dosage forms, apparatus type, agitation speed, media volume, and recommended time points for the dissolution profile. The dissolution method requires special laboratory equipment, following a well-defined protocol. Basic information is available in the United States Pharmacopeia general chapters<711> Dissolution, <724> Drug Release, and <1092> The Dissolution Procedure – Development and Validation and these chapters were used as a starting point for this revision. The article describes current regulatory expectations for establishing a suitable dissolution method for implementing quality control tools, a way to maintain lot quality and consistency between development batches and post-approval commercial batches. Dissolution methods draw offers some advantages as a possible surrogate for extensive clinical studies in certain cases required after scale-up and post-approval changes in the product's life cycle and serves as an essential tool for establishing waivers for filing of lower strengths of the drug product. The step-by-step dissolution method development plan as per current regulatory perspectives and the factors to be considered are explained with examples. Scientist requires detailed insights on the selection of media and volumes, physicochemical properties of active substance, sink condition, type of enzymes, selection of apparatus, deaeration, sinkers, agitation speed, and time point’s measures. The advanced dissolution method is evaluated against its discriminatory power by intentionally varying formulation and process variables
过去几十年来,溶出(体外释放)测试一直是科学界和监管部门密切关注的主题。作为一种分析方法,体外溶出度测试测量药物在溶出介质中的释放情况。我们查阅了美国食品药品管理局(USFDA)的溶出数据库,并就剂型类型、仪器类型、搅拌速度、介质体积和溶出曲线的推荐时间点进行了筛选。溶出方法需要特殊的实验室设备,并遵循明确的操作规程。基本信息可参见《美国药典》中的 "溶出"、"药物释放 "和 "溶出程序--开发与验证 "等章节。文章介绍了当前监管部门对建立合适的溶出方法以实施质量控制工具的期望,这是一种在开发批次和批准后商业批次之间保持批次质量和一致性的方法。溶出度方法的绘制具有一定的优势,在产品生命周期中的某些情况下,溶出度方法可以替代扩大规模和批准后变更后所需的大量临床研究,也是确定药物产品低剂量申报豁免的重要工具。本报告结合实例,从当前的监管角度解释了逐步溶出方法开发计划以及需要考虑的因素。科学家需要详细了解介质和容量的选择、活性物质的理化性质、沉降条件、酶的类型、仪器的选择、脱气、沉降器、搅拌速度和时间点的测量。通过有意改变配方和工艺变量,对先进溶解方法的鉴别力进行评估
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引用次数: 0
Formulation and Evaluation of Sustained Release Matrix Tablet of Valsartan 缬沙坦缓释基质片的制备与评估
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00039
Sandesh Y. Pawar, Rajendra K. Surawase
The aim of this study was to develop antihypertensive matrix tablets with sustained release of valsartan, an angiotensin type II receptor antagonist, using hydroxypropyl methylcellulose and combination of ethyl cellulose material as matrix in different proportions by wet granulation. The granules are evaluated by tapped density, bulk density, angle of repose and compressibility index. The tablets are tested for friability, hardness, weight variation and in vitro release. The granules showed good flow properties and compressibility properties and all tablet formulations showed pharmaceutical properties. The result of dissolution study indicate that the formulation prepared by combination of high grade HPMC K100M and ethyl cellulose showed maximum drug release for 12hrs and high drug release around 98.56% i.e., Formulation F8 is the best formulation.
本研究的目的是以羟丙基甲基纤维素和乙基纤维素组合材料为基质,按不同比例进行湿法造粒,开发缬沙坦(一种血管紧张素 II 型受体拮抗剂)缓释降压基质片剂。对颗粒进行了攻丝密度、堆积密度、休止角和压缩指数评估。对片剂的易碎性、硬度、重量变化和体外释放进行了测试。颗粒显示出良好的流动性和可压缩性,所有片剂配方都显示出药物特性。溶出度研究结果表明,由高级 HPMC K100M 和乙基纤维素组合制备的制剂在 12 小时内的药物释放量最大,药物释放率高达 98.56%左右,即制剂 F8 是最佳制剂。
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引用次数: 0
Development of Thermoreversible In-situ gel containing copper ions to cure moderate skin burns 开发含有铜离子的热可逆原位凝胶,用于治疗中度皮肤烧伤
Pub Date : 2023-11-09 DOI: 10.52711/0975-4377.2023.00041
Jaydeep Singh Chauhan, Jigar Vyas
The primary goal of treating burns that are deep and widespread and where the dermis layer has been damaged. And the natural ability of spontaneous re-epithelialization has been severely compromised or eliminated, is wound closure. Burn victims experience mental suffering because of the scarring that arises from their functional and cosmetic damage. Iodine's primary purpose in wound treatment is as an antibacterial agent. For many decades, povidone iodine has been used and studied in wound healing. Copper oxide- based wound dressings accelerate wound healing through angiogenesis, regeneration, and antibacterial qualities. With its powerful antibacterial capabilities, copper is a vital mineral that is important for many physiological and metabolic processes, including angiogenesis, skin production, expression, and stability of extracellular skin proteins. These two characteristics work together to make copper a desirable mineral for enhancing skin wellbeing. As a result, when copper oxide is added to standard items, the result is an improved product. Several compositions for Gel made of poloxamer (p188) and poloxamer(p407). Poloxamer Gels (TPGEL) are excellent thermosensitive polymers for topical application because they exist as low-viscosity liquids at ambient temperature but as Gels at body temperature.
治疗深度烧伤、大面积烧伤以及真皮层受损的烧伤的主要目的是闭合伤口。自发再上皮化的自然能力受到严重破坏或丧失,治疗的主要目的是闭合伤口。烧伤患者因功能性和外观性损伤而留下疤痕,给他们带来精神痛苦。碘在伤口治疗中的主要作用是作为一种抗菌剂。几十年来,聚维酮碘一直被用于伤口愈合并对其进行研究。基于氧化铜的伤口敷料可通过血管生成、再生和抗菌特性加速伤口愈合。铜具有强大的抗菌能力,是一种重要的矿物质,对许多生理和新陈代谢过程都很重要,包括血管生成、皮肤生成、细胞外皮肤蛋白的表达和稳定性。这两种特性共同作用,使铜成为增强皮肤健康的理想矿物质。因此,在标准产品中添加氧化铜后,产品会得到改善。由聚氧乙烯醚(p188)和聚氧乙烯(p407)制成的凝胶的几种成分。Poloxamer 凝胶(TPGEL)在环境温度下为低粘度液体,而在体温下则为凝胶,因此是非常适合局部使用的热敏性聚合物。
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引用次数: 0
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Research Journal of Pharmaceutical Dosage Forms and Technology
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