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Multiporphyrinic architectures:Advances in structural design for photodynamic therapy
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作者 Yuwei Gao Yan Li +3 位作者 Zhengwei Xu Shuangjiang Yu Junqiu Liu Hongcheng Sun 《Aggregate》 EI CAS 2024年第1期67-84,共18页
Rationally designed multiporphyrinic architectures for boosting photodynamic therapy(PDT)have attracted significant attentions recently years due to their great potential for light-mediated generation of reactive oxyg... Rationally designed multiporphyrinic architectures for boosting photodynamic therapy(PDT)have attracted significant attentions recently years due to their great potential for light-mediated generation of reactive oxygen species.However,there is still a gap between the structure design and their PDT performance for biomedical applications.This tutorial review provides a historical overview on(i)the basic concept of PDT for deeply understanding the porphyrin-mediated PDT reactions,(ii)developing strategies for constructing porphyrinic architectures,like nanorings,boxes,metal-organic frameworks(MOFs),covalent-organic frameworks(COFs),vesicles,etc.,where we classified into the following three categories:multiporphyrin arrays,porphyrinic frameworks,and others porphyrin assemblies,(iii)the various application scenarios for clinical cancer therapy and antibacterial infection.Also,the existing challenges and future perspectives on the innovation of porphyrinic architectures for clinical PDT applications are mentioned in the end section.Moreover,the porphyrinic nanomaterials with atomically precise architectures provide an ideal platform for investigating the relationship between structures and PDT outputs,design of personalized“all-in-one”theranostic agents,and the popularization and application in wider biomedical fields. 展开更多
关键词 covalent-organic frameworks(COFs) metal-organic frameworks(MOFs) multiporphyrin arrays photodynamic therapy(PDT) porphyrinic architectures
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配位键驱动的多卟啉阵列结构在纳米SiO_2表面的组装及光电性能
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作者 何文莉 陈萌 钱东金 《高等学校化学学报》 SCIE EI CAS CSCD 北大核心 2017年第9期1654-1662,共9页
制备了吡啶功能化的纳米二氧化硅(nanoSiO_2BPy),并利用配位键驱动的层层自组装技术,以四吡啶基锌卟啉(ZnTPyP)为链接单元,在nanoSiO_2BPy表面构筑了含有(Pd/ZnTPyP)_n多卟啉阵列结构的有机-无机杂化材料.利用热重、紫外-可见吸收光谱和... 制备了吡啶功能化的纳米二氧化硅(nanoSiO_2BPy),并利用配位键驱动的层层自组装技术,以四吡啶基锌卟啉(ZnTPyP)为链接单元,在nanoSiO_2BPy表面构筑了含有(Pd/ZnTPyP)_n多卟啉阵列结构的有机-无机杂化材料.利用热重、紫外-可见吸收光谱和X射线光电子能谱跟踪分析了nanoSiO_2BPy@(Pd/ZnTPyP)_n杂化材料的组装过程.结果表明,nanoSiO_2BPy@(Pd/ZnTPyP)_3杂化材料在150~450℃升温区间内质量损失17%,可归结为组装在纳米SiO_2表面的多卟啉阵列和少量有机物的热分解.紫外-可见和荧光光谱表明,在nanoSiO_2BPy@(Pd/ZnTPyP)_n杂化材料中,锌卟啉Soret带的吸收峰出现在426 nm处,其Q带的荧光发射峰出现在605和655 nm处,荧光寿命约为1.78 ns,光谱数据均与锌卟啉在稀的二甲亚砜溶液中的结果接近,表明组装在nanoSiO_2BPy表面的锌卟啉环之间相互作用较弱,没有形成聚集体.场发射透射电镜照片显示,由于Pd/ZnTPyP的组装,nanoSiO_2BPy@(Pd/ZnTPyP)_3杂化材料的平均直径由原料的10~16 nm增加到15~20 nm.杂化材料修饰电极的循环伏安曲线在-0.6^-2.4 V(vs.Ag/AgCl)范围内出现了2对不可逆的氧化还原峰,归属于卟啉被氧化的电子转移过程.探讨了nanoSiO_2BPy@(Pd/ZnTPyP)_n杂化材料作为光敏剂在光电转换、光催化乙基紫精的还原和显色方面的应用. 展开更多
关键词 多卟啉阵列 杂化材料 层层自组装 光电流 光致变色
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Metal-mediated Multiporphyrin Arrays at Interfaces:Preparation, Electrochemistry, Catalytic Oxidation of Nitrite and NO
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作者 Zhang Chao-feng, Chen Meng, Qian Dong-jin (Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China) 《复旦学报(自然科学版)》 CAS CSCD 北大核心 2007年第5期787-,共1页
1 Results Manganese porphyrins have attracted growing interest because of their unique physical and chemical properties,such as mimicking the role of Mn complex in photosystem Ⅱ and acting as electrocatalysts towards... 1 Results Manganese porphyrins have attracted growing interest because of their unique physical and chemical properties,such as mimicking the role of Mn complex in photosystem Ⅱ and acting as electrocatalysts towards the oxidation of nitric oxide and nitrite.As one of the bottom-up techniques,we are currently investigating the design,preparation and opto-electrochemical properties of metal-mediated multiporphyrin arrays on the solid surfaces.Because the porphyrins are connected by metal ions via coordin... 展开更多
关键词 multiporphyrin arrays catalytic oxidation NO
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