英國皇家化學會（RSC）是一個擁有超過175年歷史的面向全球化學家的非營利會員制機構，旗下擁有43種期刊，其中很多在化學領域有很高影響力。為了進一步幫助廣大讀者追蹤科技前沿熱點，X-MOL團隊與英國皇家化學會合作，推出英國皇家化學會期刊主編推薦的精彩文章快覽，本期文章屬“材料領域”，英文點評來自英國皇家化學會期刊的主編。如果大家對我們的解讀有更多的補充和點評，歡迎在文末寫評論發表您的高見！

Chemical Science （IF: 8.668）

    1. GO-guided direct growth of highly oriented metal–organic framework nanosheet membranes for  H2/CO2 separation

    Chem. Sci., 2018, Advance Article

    DOI: 10.1039/C7SC04815G

    Researchers in China and Australia report a bottom-up strategy for directly growing a highly oriented Zn2（benzimidazole）4 ZIF nanosheet tubular membrane, based on graphene oxide guided self-conversion of ZnO nanoparticles. The resulting 200 nm thick membrane demonstrated exceptional H2/CO2 gas separation performance, with a H2 performance of 1.4×10-7 mol m-2 s-1 Pa-1 and an ideal separation selectivity of approximately 106. The strategy is particularly suitable for large-scale fabrication of tubular MOF membranes.

    大連理工大學和澳大利亞莫納什大學的研究者們合作報道了一種自下而上的合成策略，基于氧化石墨烯導向的ZnO納米顆粒自轉化，直接生長一種高度取向的鋅-苯并咪唑（Zn2（benzimidazole）4）ZIF納米片管狀膜。所合成的200 nm厚的膜表現出了出色的H2/CO2氣體分離性能（H2透過率為1.4 × 10-7 mol m-2 s-1 Pa-1）以及理想的分離選擇性（約為106）。該方法特別適用于大規模生產制造管狀MOF膜。

    2. 9,10-Azaboraphenanthrene-containing small molecules and conjugated polymers: synthesis and their application in chemodosimeters for the ratiometric detection of fluoride ions

Chem. Sci., 2018, Advance Article DOI: 10.1039/C8SC00688A

    Scientists in China have developed an efficient synthetic procedure for conjugated small molecules and polymers featuring 9,10-azaboraphenanthrene units via aromaticity-driven ring-opening interactions. These molecules and polymers displayed good air and moisture stability, and bright fluorescent properties. The compounds were used as effective and selective ratiometric sensors for fluoride ions in THF solution with 11 anions. The conjugated polymers showed better sensing performance than the molecules due to exciton migration along the conjugated chains.

    西安交通大學研究團隊發展了一種通過芳香性驅動的開環反應有效合成帶有9,10-氮硼雜菲單元的共軛小分子和聚合物的合成方法。這些分子和聚合物展現出了良好的空氣和濕度穩定性，并具有明亮的熒光性質。該化合物在含有11種陰離子的THF溶液中，可用作氟離子的高效選擇性比率傳感器。由于能夠沿共軛鏈進行激子遷移，這種共軛聚合物顯示出了比單個分子更好的傳感性能。

Polymer Chemistry （IF: 5.375）

    1. Cross-linked AIE supramolecular polymer gels with multiple stimuli-responsive behaviours constructed by hierarchical self-assembly

    Polym. Chem., 2018, 9, 2021-2030

    DOI: 10.1039/C8PY00226F

    Here researchers used the principles of hierarchical （step-wise） self-assembly to create stimuli-responsive supramolecular polymer gels. Firstly, the discrete building blocks of the supramolecular structures were synthesised, driven by coordination interactions these self-assembled to create metallacycles. By increasing the concentration of metallacycles and introducing guest molecules the system self-assembled into a crosslinked supramolecular gel. The gels created had aggregation-induced-emission properties and were responsive to stimuli such as temperature and competitive guests.

    華東師范大學的研究人員使用分級（逐步）自組裝的原理合成了具有刺激響應性的超分子聚合物凝膠。首先，他們合成了構成超分子結構的離散結構單元，并通過配位作用驅動這些結構單元自組裝成金屬環。之后，通過增加金屬環的濃度以及引入客體分子，該體系最終自組裝成為交聯超分子凝膠。該凝膠具有聚集誘導發光（AIE）性質，并可對溫度和競爭性客體分子等刺激產生響應。

    2. RAFT polymerization of a RGD peptide-based methacrylamide monomer for cell adhesion

    Polym. Chem., 2018, 9, 1780-1786

    DOI: 10.1039/C7PY01887H

    In this paper a novel RGD peptide-based methacrylamide monomer （MARGD） was synthesised and can be polymerised by RAFT polymerization to afford well-defined polymers （PMARGD） containing a RGD peptide group. In aqueous solutions PMARGD self-assembled into nanoparticles which exhibited pH responsive behaviour, increasing in size as the pH of the solution decreased. Cytotoxicity tests showed biocompatibility.

    北京化工大學的研究人員合成了一種新的基于RGD肽的甲基丙烯酰胺單體（MARGD），其可通過直接RAFT聚合反應制備帶有RGD肽結構單元的結構確切的聚合物（PMARGD）。在水溶液中，PMARGD會自組裝成納米顆粒，并表現出了pH響應行為，這種納米顆粒尺寸會隨著溶液pH值的下降而增大。細胞毒性測試顯示該聚合物具有生物相容性。

Materials Horizons （IF: 10.706）

    1. Metal–organic framework-derived one-dimensional porous or hollow carbon-based nanofibers for energy storage and conversion

    Mater. Horiz., 2018, Advance Article

    DOI: 10.1039/C8MH00133B

    The electrospinning method has provided a new and exciting avenue for fabricating functional 1D hollow carbon materials from MOFs, especially for clean energy utilization. This minireview by Yoshio Bando, Yusuke Yamauchi et al. provides some guidance for future derivations of 1D hollow carbon nanomaterials from MOFs using electrospinning technology.

    靜電紡絲法為由MOFs材料制造功能性一維（1D）中空碳材料提供了一條令人興奮的新途徑，特別是對清潔能源領域。本篇綜述為使用靜電紡絲法由MOFs制備一維中空碳納米材料及其未來發展提供了一些指導。

    2. Conducting photopolymers on orthopeadic implants having a switch of priority between promoting osteogenic and antibacterial activity

    Mater. Horiz., 2018, Advance Article

    DOI: 10.1039/C8MH00285A

    For the long-term success of medical implants, the authors of this communication have decorated an implant surface with an intelligent medium based on conducting photopolymers. This surface could switch priority between promoting bone integration and antibacterial activity when a specific electrical stimulus was applied. This opens up new avenues for implants with specific properties needed at different clinical stages of implantation.

    為了醫療植入物的長期成效，本文作者將一種基于導電光敏聚合物的智能介質修飾在了植入物表面。當施加特定的電刺激時，該表面可以在促進骨整合和抗菌活性之間切換優先度。該研究為具有不同臨床階段所需特定性能的植入物開辟了新途徑。

    3. Pseudocapacitance contribution in boron-doped graphite sheets for anion storage enables high-performance sodium-ion capacitors

    Mater. Horiz., 2018, Advance Article

    DOI: 10.1039/C8MH00156A

    Intercalation pseudocapacitive materials enable very fast charging and discharging processes in batteries, which can provide both fast rate capability and high specific capacity. Currently, all the previously reported pseudocapacitive contributions in intercalation/deintercalation reactions are based on various cations （Li+, Na+, Zn2+ etc.）。 In this work, the authors demonstrate that boron-doped graphite sheets can reversibly store anions （PF6-） through both a surface-controlled pseudocapacitive reaction and a diffusion-limited intercalation/deintercalation reaction.

    嵌入贗電容材料可使電池能夠進行快速的充放電，提供快速倍率性能和高比容量。目前，已有報道的贗電容嵌入/脫嵌反應都是基于各種陽離子（Li+, Na+, Zn2+等）。在本工作中，作者們證明了硼摻雜石墨片可以通過表面控制的贗電容反應和擴散受限的嵌入/脫嵌反應可逆地存儲陰離子（PF6-）。

    Biomaterials Science （IF: 4.21）

    1. Interaction of cells with patterned reactors

    Biomater. Sci., 2018, 6, 793-802

    DOI: 10.1039/C7BM00838D

    Researchers created patterned particles through step-wise assembly with a PDMS stamp, strengthened by a final crosslinking step. Then they made the patterned particles into reactors by introducing enzyme-loaded liposomes in between polymer layers. The enzyme used was glucose oxidase, which catalyses the reaction of glucose to hydrogen peroxide. The reactor design successfully influenced the cellular response and the activity of the reactor increased with additional liposome deposition steps.

    哈爾濱工業大學和丹麥奧胡斯大學的研究人員們借助PDMS印章逐步組裝合成了一種圖案化顆粒，并由最后的一個交聯步驟進行強化。之后，他們通過在聚合物層之間引入載有酶的脂質體，將這種圖案化顆粒制成了反應器。所使用的葡萄糖氧化酶能夠催化由葡萄糖生成過氧化氫的反應。所設計的反應器成功地影響了細胞響應，而且其活性會隨著脂質體沉積步驟的增多而增加。

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