通过4-甲氧基苯甲醛的羰基加成反应合成4-甲氧基-苯基羟基乙酸。
The 4-methoxy-phenylhydroxy-acetic acid was synthesized by the carbonyl addition reaction of 4-methoxybenzaldehyde.
两次化学脱皮期间仍外用8%羟基乙酸。
The treatment with 8% glycolic acid remained during the chemical peeling period.
聚羟基乙酸PGA管状支架的摩擦力随流速的增加而增加。
The friction force of PGA porous scaffolds between DMEM is increases with the increase of the flow velocity.
以强酸性阳离子交换树脂为催化剂，合成羟基乙酸正丁酯。
Then-butyl hydroxyethanoate was synthesized by cation exchange resin as catalyst.
目的：探讨羟基乙酸化学脱皮治疗妇女黄褐斑的疗效和安全性。
Objective: To evaluate the efficacy and safety of glycolic acid chemical peeling in the treatment of female melasma.
并对羟基乙酸在化学清洗、助剂和材料等方面的应用进行了详细的介绍。
And the application of glycollic acid in the fields of chemical cleaning, auxiliaries and materials were introduced in detail.
苯羟基乙酸和苯氧乙酸都具有生物活性，在诸如抗菌等方面具有广泛的应用。
Hydroxy benzene acetic acid and acetic acid have biological activity, such as anti-bacterial and other aspects, leading to a wide range of applications.
目的研究仿生矿化的聚乳酸-羟基乙酸共聚物(PLGA)作为骨组织工程支架材料的可行性。
Objective To investigate the feasibility of using biomimetic mineralized PLGA as scaffold material in bone tissue engineering.
以钼磷酸为催化剂合成了两种羟基乙酸酯，并经沸点和核磁共振氢谱确定了它们的组成和结构。
Molybdophosphoric acid used as the catalyst, two alkyl glycolates were prepared. The glycolates were characterized by the boiling points and proton NMR spectra.
方法应用鼠尾胶和层粘蛋白包埋纤维状的聚羟基乙酸和聚乳酸共聚物支架与人胚雪旺细胞培养2周。
Methods The human embryo Schwann cells were cultured for 2 weeks when they were seeded on polyglactin 910 scaffolds coating with rat tail glue and laminin together.
方法将第54代转化人胚肌腱细胞与碳纤维和聚羟基乙酸混合编织带体外复合培养构建组织工程肌腱。
Methods The 54th generation of transformed human embryonic tendon cells and artificial composite materials of carbon fibers(CF) and polyglycolic(PGA) were co-cultured in vitro to construct TET.
聚羟基乙酸是一种简单的聚酯，它具有优异的可生物降解性和生物相容性，是一类较重要的医用高分子材料。
Polyglycolide acid is one of the most important polymer material used in medicine because of its superior biodegradability and biocompatibility.
聚羟基乙酸是一种简单的聚酯，它具有优异的可生物降解性和生物相容性，是一类较重要的医用高分子材料。
Polyglycolide is a kind of simple polyester. It has excellent biodegradability and biocompatibility. And it is an important macromolecule material for medicine.
目的研究许旺细胞在聚乳酸（PLA）无纺纤维布及聚羟基乙酸（PLGA）纤维丝上的粘附、三维生长及迁移情况。
Objective To observe the behavior of Schwann cell migration and wrapping up of fibres during co-culture of Schwann cells with steroframe of PLA and PLGA fibres.
目的以聚乳酸-羟基乙酸共聚物（PLGA）为材料，采用静电纺丝方法制备纤维支架，考察制备参数对纤维支架结构及纤维直径的影响规律。
Objective To prepare PLGA fiber scaffolds by electrospinning process and investigate the influence of preparation parameters on the structure of the scaffolds.
方法：以鸡新城疫病毒（NDV）作为疫苗模型药物、乳酸-羟基乙酸共聚物（PLGA）为载体材料，采用W/O/W复乳-溶剂挥发法制备NDV-PLGA口服微球。
METHODS:Newcastle dis-ease virus(NDV)vaccine was used as model drug, and PLGA as carrying agent to prepare NDV-PLGA oral microspheres by W/O/W emulsifying-solvent evaporation technique.
如果用三叔丁基羟基作为氨基保护基团使用，应用酸来将其脱去，如以盐酸和异丙醇为溶剂或无水三氟乙酸。
If the tertiary butyloxycarbonyl group is being used as amino-protecting group, its removal is effected with acid, such as HCl and isopropanol as a solvent or with trifluoroacetic acid neat.
通过2，4-二羟基苯乙酸的合成考察了反应时间、物料配比和水解过程对反应的影响。
Through the experiment on synthesis of 2,4-dihydroxyphenyl acetic acid, the influences of reaction time, the molar rate of raw materials and hydrolysis on the yield of the product were studied.
方法：采用0.1%的8-羟基喹啉作稳定剂和0.1%的AE表面活性剂作乳化剂制备的一元过氧乙酸溶液。
Methods:0.1% 8-hydroxyquinoline is used to as stabilizer and 0.1% AE surfactant is used to as emulsifier, which prepare for Peracetic acid in single-ingredient.
方法以价格低廉的国产试剂2，6-二特丁基酚为原料，选择乙酸-水为反应介质，合成关键中间体3，5-二特丁基-4-羟基苯甲醛，并研究了乙酸-水配比对反应的影响；
METHODS 3,5-di-tert-butyl-4-hydroxy benzaldehyde was synthesized from 2,6-di -tert-butyl phenol in a reaction medium of acetic acid-water which its ratio was investigated.
实验结果表明，该树脂中的羟基改为乙酸基后可降低树脂的饱和吸水率，并增大水在树脂中的扩散能力。
The experimental results show that the replacing of the hydroxy groups with acetoxy groups in the resin causes less water uptake, but increases the diffusibility of water in the resin.
实验结果表明，该树脂中的羟基改为乙酸基后可降低树脂的饱和吸水率，并增大水在树脂中的扩散能力。
The experimental results show that the replacing of the hydroxy groups with acetoxy groups in the resin causes less water uptake, but increases the diffusibility of water in the resin.
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