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RSC主编推荐:材料领域精彩文章快览(免费阅读原文)

英国皇家化学会(RSC)是一个超过175年历史的面向全球化学家的非营利会员制机构,旗下拥有44种期刊,其中很多在化学领域有很高影响力。为了进一步帮助广大读者追踪科技前沿热点,X-MOL团队与英国皇家化学会合作,推出英国皇家化学会期刊主编推荐的精彩文章快览,本期文章属“材料领域”,英文点评来自英国皇家化学会期刊的主编。如果大家对我们的解读有更多的补充和点评,欢迎在文末写评论发表您的高见!


Chemical Science (IF: 9.063)



1. NIR-II light-modulated thermosensitive hydrogel for light-triggered cisplatin release and repeatable chemo-photothermal therapy

Chem. Sci., 2019, Advance Article

DOI: 10.1039/C9SC00375D



A team of scientists from Guangxi Normal University in China have developed an injectable hydrogel through self-assembly of a conjugated polymer and α-cyclodextrin for cisplatin delivery. The hydrogel is intrinsically responsive to NIR-II light and temperature, allowing controlled release of the drug. The conjugated polymer absorbs NIR-II light mediating photothermal conversion for combined therapy against breast cancer cells. The hydrogel has long retention time and repeatable treatment from a single injection.


广西师范大学的研究团队开发了一种通过共轭聚合物和α-环糊精的自组装形成的可注射水凝胶,可用于顺铂的递送。该水凝胶本身对近红外二区(NIR-II)光和温度有响应,可以实现药物的可控释放。这种水凝胶中共轭聚合物通过吸收近红外二区光介导光热转化,可用于乳腺癌细胞的联合治疗。该水凝胶具有较长的保留时间,可实现单次注射、多重治疗的效果。


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详细解读:

沈星灿团队 Chem. Sci. | 新型近红外二区光响应温敏水凝胶—顺铂可控释放与肿瘤协同治疗


Materials Horizons (IF: 13.183)



1. Label-free manipulation via the magneto-Archimedes effect: fundamentals, methodology and applications

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c8mh01616j



This review introduces the theoretical basis of label-free manipulation by distinguishing magnetic matter and magnetic media. A state-of-the-art review is presented on manipulation techniques, ranging from levitation to orientation, separation, trapping, and self-assembly in 3D at both the macroscale and microscale. Finally, it is concluded with a brief outlook and future perspectives.


本篇综述介绍了(基于磁阿基米德原理)通过区分磁物质和磁介质进行非标记操控的理论基础。本文介绍了最新的操控技术,包括宏观尺度和微观尺度中的磁悬浮、定向、分离、捕获以及三维自组装。最后,还对未来前景进行了展望。


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2. Photocatalytic effect of ZnO on the stability of nonfullerene acceptors and its mitigation by SnO2 for nonfullerene organic solar cells

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c9mh00379g



Herein, we report that ZnO tends to decompose high-performance acceptor–donor–acceptor (A–D–A) nonfullerene acceptors due to its photocatalytic activity under UV illumination. This leads to poor device stability of NF solar cells under solar light illumination. In the second part of this work, a mitigation strategy of the photocatalytic effect is reported by using SnO2 as the electron-transporting layer to replace the ZnO. The solar cells with SnO2 display better stability than the reference cells with the ZnO ETL, and in the meantime exhibit higher photovoltaic performance.


本文作者发现,由于在紫外光照射下的光催化活性,ZnO倾向于分解高性能受体-给体-受体(A-D-A)型非富勒烯受体。这导致了在太阳光照射下非富勒烯太阳能电池器件糟糕的稳定性。作者们还发现,用SnO2代替ZnO作为电子传输层,可以缓解光催化效应带来的影响。与含有ZnO电子传输层的参比电池相比,含有SnO2的太阳能电池显示出了更好的稳定性,同时也表现出了更高的光伏性能。


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3. The importance of phase equilibrium for doping efficiency: iodine doped PbTe

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c9mh00294d



This study provides a pedagogical framework to guide synthesis of high-performance semiconductors though phase equilibria considerations. It introduces a saturation annealing technique to the phase boundary mapping methodology to establish a thermodynamic pathway for the processing of precisely doped materials. Understanding connections between phase equilibrium and doping can ensure reproducible, optimal, and reliable performance in both new and classic materials systems.


本研究提供了一个通过考虑相平衡来指导高性能半导体合成的教学框架。它将饱和退火技术引入相界映射方法,建立一种加工精确掺杂材料的热力学路径。了解相平衡和掺杂之间的联系可以确保在新材料系统和传统材料系统中实现可重复、最佳以及可靠的性能。


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Polymer Chemistry (IF: 4.927)



1. Morphology control and property design of boronate dynamic nanostructures

Polym. Chem., 2019, Advance Article

DOI: 10.1039/C9PY00217K



In this paper authors have investigated the design and synthesis of boronate dynamic nanostructures (BDNs) which have previously been used in catalysis, as sensors and in pharmaceuticals. The authors provide insights into the relationship between the molecular design and the morphology, structure and properties of the nanostructures. They focus on phenylboronic acid derivatives and their findings can be generalised to apply to other dynamic systems.


本文作者研究了硼酸酯动态纳米结构(BDN)的设计和合成,该材料此前已经应用于催化、传感器和药物中。作者提出了关于纳米结构的分子设计与形貌、结构和性质之间关系的见解。本文重点专注了苯基硼酸的衍生物,相关发现可以推广应用于其他动态系统。


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Biomaterials Science (IF: 5.831)



1. Ultralong circulating choline phosphate liposomal nanomedicines for cascaded chemo-radiotherapy

Biomater. Sci., 2019, 7, 1335-1344

DOI: 10.1039/C9BM00051H



The authors present a synergistic method to deliver chemo radiotherapy (RT) demonstrated in mice models in vivo. Presently, radiotherapy is limited by radioresistance, caused by endogenous factors, and irradiation resistance, in particular hypoxia, caused by the tumor microenvironments. To overcome these issues the authors used a nanomedicine based delivery system to deliver a radiotherapy sensitiser, vorinostat, hypoxia-activated prodrug and banozantrone dihydrochloride (AQ4N) to the target site before the radiotherapy was carried out. They demonstrated that this method, combined with radiotherapy, was able to kill normoxic tumor cells by direct radiation and further enhanced therapeutic efficacy by reducing radioresistance. They were able to utilise the hypoxia to activate the prodrug at the target site.


作者提出了一种进行化学放射治疗的协同方法,并在小鼠模型体内实验中进行了验证。目前,放射治疗受限于由内源因素引起的放射抗性以及由肿瘤微环境造成辐射抗性,特别是缺氧。为了克服这些问题,作者使用基于纳米医学的递送系统在进行放射治疗之前将放疗增敏剂伏立诺他、缺氧激活前药和班诺沙酮二盐酸盐(AQ4N)递送至目标部位。他们证明这种方法与放疗相结合,能够通过直接辐射杀死含氧量正常的肿瘤细胞,并通过减少放射抗性进一步提高治疗效果。他们能够利用缺氧激活位于目标部位的前药。


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