Poly-L-Lactic Acid - StatPearls - NCBI Bookshelf
Feb 28, 2024 · Poly-L-lactic acid (PLLA) is an absorbable, semi-permanent, injectable implant that can restore volume and gradually stimulate collagen formation. Poly-L-lactic acid is FDA-approved for correcting facial fat loss associated with antiretroviral therapy-induced lipoatrophy in …
当我们在说聚左旋乳酸（PLLA）时，我们到底在说什么？ - 知乎
有别于我们熟知的玻尿酸、异体胶原和自体脂肪等美容填充材料，PLLA（聚左旋乳酸）属于全新一代医学再生材料。 是能够被分解吸收的人造医学材料，具有良好的生物相容性和可降解性，在体内可自行分解代谢为二氧化碳和水。 PLLA因其安全性已在医学领域被广泛使用近40年，并在应用于医学美容领域后，陆续获得了来自多国权威管理机构的许可： 1、2004年，欧洲批准PLLA用于治疗大面积面部脂肪萎缩。 2、2004年8月，FDA批准注射用PLLA用于治疗HIV感染相关性面部 …
Polylactic acid - Wikipedia
Polylactic acid, also known as poly (lactic acid) or polylactide (PLA), is a plastic material. As a thermoplastic polyester (or polyhydroxyalkanoate) it has the backbone formula (C. n. PLA is formally obtained by condensation of lactic acid C (CH. 3) …
聚乳酸 - 维基百科，自由的百科全书
聚乳酸 （英語： Polylactic Acid或Polylactide， 縮寫： PLA），是一種 热塑性 脂肪族 聚酯。 生产聚乳酸所需的 乳酸 或 丙交酯 可以通过可再生资源发酵、脱水、纯化后得到，所得的聚乳酸一般具有良好的机械和加工性能，而聚乳酸产品废弃后又可以通过各种方式快速降解。 乳酸的结构中同时含有 羧基 和 羟基，故乳酸分子之间可以发生酯化反应形成长链。 虽然名叫聚乳酸，但绝大部分羧基已经在聚合反应中反应掉，实际并没有什么酸性，这一点和聚丙烯酸为代表的侧基均为羧基 …
Poly- l -Lactic Acid (PLLA)-Based Biomaterials for Regenerative ...
In this review, we discuss the structure of PLLA, its main properties, and the most recent advances in overcoming its hydrophobic, synthetic nature, which limits biological signaling and protein absorption.
左旋聚乳酸_化工百科 - ChemBK
左旋聚乳酸（Poly-L-lactic acid，PLLA）是一种生物降解的高分子材料，具有以下性质： 高度结晶性：左旋聚乳酸的晶体结构使其具有很高的力学性能和刚性。
Poly-L-Lactic Acid (Professional Patient Advice) - Drugs.com
Mar 12, 2024 · Poly-L-lactic acid is an immunologically inert synthetic polymer. It increases dermal thickness by causing a local reaction leading to an increase in collagen deposits. It is eventually degraded and undergoes resorption. Weeks to months for full effect of treatment.
Physiochemical Characteristics of Poly-L-Lactic Acid (PLLA)
Apr 6, 2018 · Poly-L-lactic acid (PLLA) is a synthetic, biocompatible, biodegradable polymer. For soft-tissue augmentation, the size and chemical attributes of the PLLA microparticles are central to this agent's ability to promote a subclinical inflammatory response that stimulates deposition of collagen in the e …
Synthesis and Biological Application of Polylactic Acid
Polylactic acid (PLA) is a kind of lactic acid (LA) derivative produced from renewable resources such as wheat, straw, corn, and sorghum, and it is completely biodegradable [4,5]. It is environmentally friendly, and can be decomposed into water and carbon dioxide by microbes.
Poly-l-lactic acid (PLLA) - Rejuvenation Resource
Sep 7, 2021 · PLLA is a biocompatible, biodegradable, synthetic polymer of lactic acid that has been widely used in biomedical applications including sutures, orthopedic devices, and drug delivery systems for many years. 1 It’s ability to stimulate subclinical granulomatous inflammation resulting in extracellular collagen deposition accounts for it’s use in s...