生物矿化法制备氧化镓颗粒及其性能表征  

Biomineralization and Properties Investigation of Gallium Oxide

作　　者：严丹红[1] 姚骅珊[1] 马文慧 YAN Dan-hong;YAO Hua-shan;MA Wen-hui(College of Medical Science and Technology,Suzhou Chien-Shiung Institute of Technology,Taicang 215411,China)

机构地区：[1]苏州健雄职业技术学院医药科技学院,江苏太仓215411

出　　处：《安徽化工》2021年第6期64-67,共4页Anhui Chemical Industry

基　　金：江苏省高校自然科学研究面上项目(19KJB310017);太仓市应用基础研究项目(TC2018JC03);苏州健雄职业技术学院基金项目(2019YBZK001)。

摘　　要：以蚕丝蛋白为模板,在相对温和的条件下通过生物矿化的手段形成具有特殊形貌的α-GaOOH颗粒,并通过在不同温度下煅烧α-GaOOH得到α-Ga_(2)O_(5)和β-Ga_(2)O_(5)。采用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射仪(XRD)和荧光分光光度计(PL)等手段研究了丝素蛋白多肽和矿化时间对颗粒的影响,对其生物矿化机理进行了初步探讨。结果表明,所制备的β-Ga_(2)O_(5)具有优良的发光特性,丝素蛋白多肽模板以无定形的结构与产物结合在一起,并且经过高温烧结后仍以碳膜的形式包覆在材料的表面。这种碳膜结构对于提高材料的生物学性能起着重要的作用。Monodispersed single crystalline α-GaOOH rods have been prepared via a facile biomineralization process in the template of silk fibroin peptide at room temperature. Scanning electron microscopy(SEM),transmission electron microscopy(TEM),X-ray diffraction(XRD)and fluorexcence spectrophotometer were used to investigate the morphology,particle size and related properties of particles. The results showed that the β-Ga_(2)O_(5)exhibits a strong blue luminescence emission compared with α-GaOOH and α-Ga_(2)O_(5). Silk fibroin polypeptide was carbonized and remained in the surface of gallium oxide,possible applications for bio-optoelectronic devices can be envisioned.

关 键 词：氧化镓 生物矿化 丝素蛋白 

分 类 号：O786[理学—晶体学]