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. Photoelectric effect accelerated electrochemical corrosion and nanoimprint processes on gallium arsenide wafers

Chem. Sci., 2019, Advance Article

DOI: 10.1039/C9SC01978B

Scientists at Xiamen University report that corrosion can be accelerated by the photoelectric effect, which could be useful for nanoimprint lithography. The team find that charge transfer is enhanced when GaAs wafers are illuminated by a xenon light source. In the presence of electrolyte solution, this accelerates anodic corrosion of the GaAs at a phase boundary. This could lead to efficient, low-cost nanoimprinting in the semiconductor industry.

厦门大学的研究人员发现光电效应可以加速腐蚀，这可能可以用于纳米压印光刻技术。该团队发现GaAs晶片在被氙光源照射时，电荷转移增强。在电解质溶液中，这会加速相界处GaAs的阳极腐蚀。该发现有助于开发半导体工业中有效且低成本的纳米压印技术。

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2. Catalase-like metal–organic framework nanoparticles to enhance radiotherapy in hypoxic cancer and prevent cancer recurrence

Chem. Sci., 2019, Advance Article

DOI: 10.1039/C9SC00747D

A team of researchers from China have developed enzyme-like MOF nanoparticles that effectively inhibit melanoma growth and prevent tumor postoperative recurrence with only one X-ray irradiation after intravenous injection. The MOF contains hafnium and an enzyme-like ligand, which can absorb X-ray energy, convert O₂ and H₂O into reactive oxygen species to induce cell apoptosis and catalytically decompose endogenous H₂O₂ into O₂ for enhancing radiotherapy in hypoxic tumors.

山东师范大学的研究人员开发了一种类酶MOF纳米颗粒，经静脉注射后只需一次X射线照射，即可有效抑制黑色素瘤的生长并预防肿瘤术后复发。该MOF材料中含有铪和一种类酶配体，能够吸收X射线能量，将O₂和H₂O转化为活性氧从而诱导细胞凋亡，并将内源性H₂O₂催化分解为O₂，促进缺氧肿瘤的放射治疗。

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Materials Horizons (IF: 13.183)

1. Progress in air-processed perovskite solar cells: from crystallization to photovoltaic performance

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c9mh00325h

This review article summarizes the recent progress made in air-processed organometallic halide perovskite (OHP) solar cells. Specifically, we focus on (1) the microscopic understanding of the impact of the ambient environment on the crystallization process of OHP composites, (2) the approaches to control the crystallization and morphology of OHP in ambient air, and (3) the fabrication processes to achieve highly efficient air-processed OHP solar cells. Finally, we will discuss the challenges and pathways toward commercialization of low-cost air-processed OHP solar cells.

本篇综述文章总结了在空气中加工的有机金属卤化物钙钛矿（OHP）太阳能电池的最新进展。具体而言，作者们关注了（1）从微观尺度理解周边环境对OHP复合材料结晶过程的影响，（2）控制空气中OHP结晶和形貌的方法，以及（3）制造高效的空气加工OHP太阳能电池的工艺。最后，作者们讨论了制作商业化低成本空气加工OHP太阳能电池的挑战和途径。

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2. Constructing metal–organic framework nanodots as bio-inspired artificial superoxide dismutase for alleviating endotoxemia

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c9mh00339h

Herein, for the first time, bio-inspired Cu-TCPP MOF dots (CTMDs) were fabricated via a facile liquid exfoliation strategy; they could functionally and structurally mimic the antioxidant superoxide diamutase for alleviating endotoxemia with the ability of renal enrichment and clearance. Both in vitro and in vivo results demonstrated that the CTMDs could efficiently remove reactive oxygen radicals, protect cell components and reduce the systemic inflammation and mortality in lipopolysaccharide-induced acute kidney injury during the endotoxemia model.

本文首次通过简便的液体剥离策略制备了仿生Cu-TCPP MOF点（CTMD），它们可以从功能和结构上模拟抗氧化剂超氧化物歧化酶以缓解内毒素血症，同时具有肾脏富集和清除的能力。体外和体内实验结果均表明，在内毒素血症模型中，CTMD能够有效去除活性氧自由基，保护细胞组分并减少脂多糖诱导的急性肾损伤的全身炎症和死亡率。

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3. Novel small-molecule electron donor for solution-processed ternary exciplex with 24% external quantum efficiency in organic light-emitting diode

Mater. Horiz., 2019, Advance Article

DOI: 10.1039/c9mh00373h

Herein, we designed and synthesized a novel small-molecule electron-donor with good solubility and film-forming ability. Further, by utilizing the strategy of ternary exciplexes to improve the reverse intersystem crossing efficiency, a solution-processed exciplex OLED was achieved with a high external quantum efficiency of 24%. The outstanding feature presented in this work can provide a good reference for the future development of high-efficiency exciplex OLEDs.

作者们设计并合成了一种具有良好溶解性和成膜能力的新型小分子电子给体。此外，通过利用三元激基复合物策略来改善反向系间窜越效率，所制备的溶液加工的激基复合物OLED的外量子效率高达24％。本项工作中介绍的突出成果可以为高效激基复合物OLED的未来开发提供良好参考。

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Polymer Chemistry (IF: 4.927)

1. Fluorescent electronic tongue based on soluble conjugated polymeric nanoparticles for the discrimination of heavy metal ions in aqueous solution

Polym. Chem., 2019, 10, 2256-2262

DOI: 10.1039/C9PY00033J

Authors created an ‘electronic tongue’ for rapid heavy metal ion sensing in aqueous solutions. They arranged fluorescent soluble polymeric nanoparticles in an array. When in the presence of positively charged heavy metal ions photoinduced electron transfer (PET) occurred and the fluorescence was quenched. As the array had a range of different conjugated polymers in it and each metal ion had distinct quenching behaviour (influenced by the size and charge of the ion) the results were analysed to create an 18 dimensional vector unique to each metal ion.

作者创造了一种在水溶液中进行快速重金属离子传感的“电子舌”。他们将荧光可溶性聚合物纳米颗粒排成阵列，当正电荷重金属离子存在时，发生光诱导的电子转移（PET）以及荧光猝灭。由于该阵列具有一系列不同的共轭聚合物，并且每种金属离子具有不同的猝灭行为（受离子的尺寸和电荷影响），因此分析结果之后即可得到与每一种金属离子都能够对应的18维向量（6种传感器 × 3个RGB值）。

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