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王靖等：La0.8Sr0.2MnO3涂覆液浓度对La0.8Sr0.2FeO3电极电化学性能的影响· 25 ·第41卷第4期DOI：10.7521/j.issn.0454–5648.2013.04.00 原位复合法制备聚吡咯/介孔TiO2及光催化性能蔡莉(四川师范大学化学与材料科学学院，成都 610068)摘要：以胶原纤维为模板制备介孔TiO2纤维(MTF)后，用吡咯(Py)对MTF进行静止原位复合，制备出修饰过的TiO2复合材料(PPy/MTF)。
利用扫描电子显微镜、场发射扫描电镜、比表面积分析、X射线衍射、紫外–可见吸收光谱、分子荧光光谱、红外光谱对PPy/MTF进行表征。
结果表明：静止原位复合时Py与MTF的摩尔比会影响PPy/MTF的表面形貌、比表面积和孔体积。
与Degussa P25相比，MTF和PPy/MTF的吸收光谱明显红移，禁带宽度有不同程度的缩小；分子荧光光谱强度明显减弱，光生电子–空穴对的复合情况得到改善。
孔雀石绿(MG)的光催化降解实验表明：MTF和PPy/MTF具有比Degussa P25更强的光催化活性，其中PPy/MTF(0.005)具有最强的光催化活性。
光催化活性的稳定性研究表明：PPy/MTF(0.005)具有良好的稳定性，能多次重复使用。
关键词：聚吡咯；胶原纤维；二氧化钛；介孔材料；孔雀石绿中图分类号：O614 文献标志码：A 文章编号：0454–5648(2013)04–网络出版时间：网络出版地址：Preparation and Photocatalytic Properties of PPy/Mesoporous TiO2via in-situ PolymerizationCAI Li(College of Chemistry and Material, Sichuan Normal University, Sichuan, Chengdu 610068, China)Abstract: Mesoporous TiO2 fiber (MTF) was firstly prepared with collagen fiber as a template, and then a PPy/MTF composite was synthesized via unstirred in-situ polymerization on the MTF. The structure and physical properties of MTF and PPy/MTF were char-acterized by scanning electron microscopy, field emission scanning electron microscopy, specific surface area analysis, X-ray diffrac-tion, UV–Vis absorption spectroscopy, photoluminescence and Fourier transform infrared spectrometry, respectively. The results in-dicate that the surface morphology, specific surface area and pore volume of MTF and PPy/MTF can be affected by the molar ratio of Py over the MTF. Compared to the Degussa P25, the absorbance wavelength of the as-prepared MTF and PPy/MTF was red shift and the band gap energy decreased. The PL intensity of MTF and PPy/MTF decreased, indicating that they had a low recombination rate of photo-induced electrons and holes. The photocatalytic activity of the as-prepared MTF and PPy/MTF was greater than that of the Degussa P25. The PPy/MTF (0.005) had an excellent long-term stability and could be multiple-used.Key words: PPy; collagen fiber; titanium oxide; mesoporous material; malachite green者的广泛关注[1]。
介孔钛纳米复合团簇应用于光热-光动力疗法常贯儒;鲁信勇;裴春;陈龙;李召【摘要】采用水热法合成了一种新型的介孔二氧化钛/碳/亚甲蓝复合纳米团簇(TiO2@C-MB),并应用于肿瘤细胞的光动力(PDT)和光热治疗(PTT).系统中介孔二氧化钛作为有效的光敏剂,MB作为重要的光敏添加剂以改善二氧化钛纳米晶的光化学效应,并将其光响应区域拓宽至光动力学疗法的理想治疗窗(650～900nm).柠檬酸在水热条件下被还原成碳并裹覆在二氧化钛表面.碳层表现出良好的光热效果,也充当多功能的电子受体以加速生成单线态氧.该纳米团簇不仅可以保持肿瘤细胞内部高浓度的MB和二氧化钛以产生大量的单线态氧杀死肿瘤细胞,而且可以避免MB退化失活.【期刊名称】《无机化学学报》【年(卷),期】2016(032)007【总页数】8页(P1141-1148)【关键词】介孔钛纳米晶;纳米团簇;光动力疗法;光热治疗;联合抗肿瘤【作者】常贯儒;鲁信勇;裴春;陈龙;李召【作者单位】黄山学院化学化工学院,黄山245041;安徽大学化学化工学院,合肥230601;黄山学院化学化工学院,黄山245041;黄山学院化学化工学院,黄山245041;黄山学院化学化工学院,黄山245041;黄山学院化学化工学院,黄山245041【正文语种】中文【中图分类】O614.41+1癌症至今仍然是严重威胁人类健康的主要疾病之一。
随着科技进步，一些癌症治疗的新方法，新思路相继出现，目前癌症的联合治疗业已成为人们研究的热点。
光动力疗法(PDT)是一种有效治疗恶性肿瘤的新方法，其治疗原理利用肿瘤组织选择性地摄入一些染料或光敏剂，在适当波长的激光照射光敏剂产生大量的活性很强的单态氧(1O2)，进而和相邻的生物大分子发生氧化反应，产生细胞毒性而导致细胞受损乃至死亡，从而达到治疗目的。
自1976年Kelly和Snell应用血卟啉衍生物成功治疗膀胱癌以来，光动力学疗法已逐步成为肿瘤的基本治疗手段之一[1-2]。
第36卷第1期2251年3月西南科技大学学报Jo/rnai of So/thwest University of Scie/ce and TechnologaVo/36No.1Mar,2021原位法制备介孔SiO2@TiO2粉体及其性能研究尹梦康明孙蓉李昌林赵宇航(西南科技大学材料科学与工程学院四川绵阳651010)摘要:介孔S i O2@T i O2粉体具有较大比表面积及有序的孔径分布，在吸附、药物控释以及催化剂载体等领域应用前景广阔。
以正硅酸乙酯为硅源、钛酸正丁酯为钛源、十六烷基三甲基漠化铵为模板剂，结合并改进溶胶凝胶法和水解沉淀法，设计了一种原位制备介孔S i O2@T i O2粉体的方法。
通过对不同酸碱条件下所得样品进行结构与性能分析表明，碱性条件有利于介孔S1O2@T1O2粉体的制备，在pH值为3和5时，其孔径分布不集中，比表面积在10 m2/g以下，当pH值为0〜11时,其比表面积为150〜200m5/g,孔体积为0.213〜0.369mL/g,孔径集中分布在5nm 左右。
相较于传统的溶胶凝胶法，原位法制备的介孔S i O2@T i O2粉体比表面积和孔体积均有增大,孔径减小但分布集中，使其更适合作为催化剂载体。
关键词:原位法介孔S1O2@T1O2粉体比表面积孔体积孔径中图分类号：0643.36文献标志码：A文章编号：1671-8755(2021)01-0023-05In-siti Preyaration and Praperties of Mesoporaus SiO2@TiO2PowderYIN Msg,KANG Ming,SUN Rong,L)Chapglia,ZHAO YuUapg(School of Materiad ang Engineering,Southwest Universita of angTechnolofa,MianyaTig621212,Sichuan,China)Abstract:Meso/oro/o SiO2@T1O2powder has a larpe specific surface area and orbereC pore size distri/u-tioc,which UPngo a wi/e applicatio/prospect in the fields of aPsorptioc,co/trolleC release of drugs and catalyst suupoU.In t hio stuUy ,with chyl orthosilicate as silicoc so/rce,n-Putyl titanate as titanium so/rce and cCyt tCoChyt ammo/ium Uromine as template agent,a metho/for in-situ pcpdction of mco-poro/o SiO2@T1O2powder wao invecteC Oa。
CHEMICAL INDUSTRY AND ENGINEERING PROGRESS 2018年第37卷第10期·3980·化 工 进展TiO 2纳米结构作为载体在药物缓控释传递系统的应用孟戎茜1，2，李巧玲3，晋日亚4（1中北大学化学工程与技术学院，山西 太原 030051；2太原工业学院化学与化工系，山西 太原 030051；3中北大学理学院，山西 太原 030051；4中北大学环境与安全学院；山西 太原 030051）摘要：TiO 2纳米结构以其生物相容性好、机械强度高、耐热耐腐蚀等优点，在药物缓控释传递系统载体应用方面引起广泛关注。
结合近几年研究报道，本文将单一和功能化TiO 2纳米结构作为药物缓控释载体进行分类，简述了制备方法、结构表征、载药方法、释药机理等，分析了功能化TiO 2纳米结构修饰结合外界刺激响应在药物缓控释系统的应用。
结果表明，相比单一结构，功能化修饰后的TiO 2纳米结构具有载药率高、缓控释效果明显、生物相容性好等优点；功能化修饰结合外界刺激响应，进一步提升药物缓控释效果；而相比单一和双重刺激响应，多重刺激响应能够更好地实现局部靶向释药。
最后预测该纳米结构作为药物缓控释传递系统载体的研究发展方向并指出目前实现临床应用所面临的问题。
关键词：TiO 2纳米结构；药物传递系统；功能修饰；缓控释；刺激响应中图分类号：O614.41 文献标志码：A 文章编号：1000–6613（2018）10–3980–08 DOI ：10.16085/j.issn.1000-6613. 2017-2404Progress of titanium dioxide nanostructures as carriers in sustained andcontrolled drug-release delivery systemMENG Rongqian 1,2, LI Qiaoling 3, JIN Riya 4(1School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, Shanxi, China ；2Department of Chemistry and Chemical Engineering, Taiyuan Institute of Technology, Taiyuan 030051, Shanxi, China;3School of Science, North University of China, Taiyuan 030051, Shanxi, China; 4 School of Environment and SafetyEngineering, North university of China, Taiyuan 030051, Shanxi, China)Abstract ：Due to its advantages of good biocompatibility, high mechanical strength, heat and corrosion resistance, the titanium dioxide nanostructures (TNSs) as drug carriers have been attracted more attention in the aspect of sustained and controlled drug-release delivery system. Referring to the recent literatures, single and functional TNSs as carriers for sustained and controlled drug-release are classified, and their preparation methods, structure characterization, drug loading methods, drug releasing mechanism et al. are briefly introduced. Moreover, the application of functionalized TNSs modification combined with external stimuli response in drug sustained and controlled drug-release system are analyzed in detail. The results showed the functional TNSs have the advantages of higher drug loading rate, more obvious sustained and controlled drug-release effect, and better biocompatibility. Functionalized TNSs modifications with external stimuli response are able to further enhance sustained and controlled drug-release effect. In addition, compared to the single and double stimuli-responsive, multiple stimuli-responsive has a better effect on the local target drug-release. Finally,****************。
