【标题速读】【Natcatal】【2023年】【5-8月】
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1.Synthetic methylotroph. Methanol is an attractive non-conventional carbon source for microbial fermentation. However, while industrial microbial hosts have been shown to be able to use this carbon feedstock for biosynthesis, they usually still required sugar substrates for growth. Here, Jens Nielsen, Jay D. Keasling, Yun Chen, Zhonghu Bai and colleagues report the successful construction of a synthetic methylotrophic yeast which can grow in minimal medium with methanol as the sole carbon source.
合成甲基营养菌。甲醇是微生物发酵的一种有吸引力的非常规碳源。然而，虽然工业微生物宿主已被证明能够使用这种碳原料进行生物合成，但它们通常仍然需要糖底物才能生长。 Jens Nielsen、Jay D. Keasling、Yun Chen、Zhonghu Bai 及其同事在此报告了一种合成甲基营养酵母的成功构建，该酵母可以在以甲醇为唯一碳源的基本培养基中生长。
2.Three-dimensional nanoimaging of fuel cell catalyst layers.
燃料电池催化剂层的三维纳米成像。
3.Blocking the sulfonate group in Nafion to unlock platinum’s activity in membrane electrode assemblies.
阻断 Nafion 中的磺酸基团以释放铂在膜电极组件中的活性。
4.Ultralow overpotential nitrate reduction to ammonia via a three-step relay mechanism.
通过三步继电器机制将硝酸盐超低过电位还原为氨。
5.Iron-only Fe-nitrogenase underscores common catalytic principles in biological nitrogen fixation.
纯铁铁固氮酶强调了生物固氮中的常见催化原理。
6.Enhanced activity for the oxygen reduction reaction in microporous water.
增强微孔水中氧还原反应的活性。
7.Reprogramming methanol utilization pathways to convert Saccharomyces cerevisiae to a synthetic methylotroph.
重新编程甲醇利用途径，将酿酒酵母转化为合成甲基营养菌。
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1.Solid solutions. In their work, Miao Zhong and colleagues report a gold catalyst supported on a Ce0.95 Ru0.05O2 solid solution capable of promoting the efficient methanation of CO2 through a photothermal effect, bypassing the need for external heating.
固体解决方案。在他们的工作中，Miaozhong 及其同事报告了一种负载在 Ce0.95 Ru0.05O2 固溶体上的金催化剂，能够通过光热效应促进 CO2 的有效甲烷化，从而无需外部加热。
2.Artificial spherical chromatophore nanomicelles for selective CO2 reduction in water.
用于选择性还原水中二氧化碳的人造球形色素纳米胶束。
3.A pyridoxal 5′-phosphate-dependent Mannich cyclase.
吡哆醛 5'-磷酸依赖性曼尼希环化酶。
4.Nickel-catalysed enantioselective hydrosulfenation of alkynes.
镍催化的炔烃对映选择性氢磺化。
5.Zeolites as equilibrium-shifting agents in shuttle catalysis.
沸石作为穿梭催化中的平衡移动剂。
6.Germanium-enriched double-four-membered-ring units inducing zeolite-confined subnanometric Pt clusters for efficient propane dehydrogenation.
富锗双四元环单元诱导沸石限制的亚纳米 Pt 簇，用于有效的丙烷脱氢。
7.Light-driven CO2 methanation over Au-grafted Ce0.95Ru0.05O2 solid-solution catalysts with activities approaching the thermodynamic limit.
Au 接枝 Ce0.95Ru0.05O2 固溶体催化剂上的光驱动 CO2 甲烷化反应活性接近热力学极限。
8.Molecular basis for carrier protein-dependent amide bond formation in the biosynthesis of lincosamide antibiotics.
林可酰胺抗生素生物合成中载体蛋白依赖性酰胺键形成的分子基础。
9.Methyl formate as a hydrogen energy carrier.
甲酸甲酯作为氢能载体。
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1.Asymmetric radical cyclases. Stereocontrolled free-radical-mediated reactions are notoriously challenging. Now, Peng Liu, Yang Yang and colleagues report the directed evolution of cytochrome P450 enzymes for the asymmetric radical cyclization of α-haloesters to arenes. Complementary P450 radical cyclases are obtained allowing access to both enantiomeric products.
不对称自由基环化酶。立体控制的自由基介导的反应是出了名的具有挑战性。现在，Peng Liu、Yang Yang 及其同事报告了细胞色素 P450 酶的定向进化，用于将 α-卤代酯不对称自由基环化为芳烃。获得互补的 P450 自由基环化酶，允许获得两种对映体产物。
2.Catalytic pyrolysis as a platform technology for supporting the circular carbon economy.
催化热解作为支持循环碳经济的平台技术。
3.Photocatalytic sacrificial H2 evolution dominated by micropore-confined exciton transfer in hydrogen-bonded organic frameworks.
光催化牺牲 H2 演化主要由氢键有机骨架中的微孔限制激子转移主导。
4.Selective production of ethylene glycol at high rate via cascade catalysis.
通过级联催化高速率选择性生产乙二醇。
5.Active-site isolation in intermetallics enables precise identification of elementary reaction kinetics during olefin hydrogenation.
金属间化合物中的活性位点隔离可以精确识别烯烃加氢过程中的基本反应动力学。
6.Engineered cytochrome P450 for direct arylalkene-to-ketone oxidation via highly reactive carbocation intermediates.
工程化细胞色素 P450，可通过高反应性碳阳离子中间体将芳基烯烃直接氧化为酮。
7.Dynamic and reversible transformations of subnanometre-sized palladium on ceria for efficient methane removal.
亚纳米级钯在二氧化铈上的动态和可逆转化可有效去除甲烷。
8.Enzyme-controlled stereoselective radical cyclization to arenes enabled by metalloredox biocatalysis.
通过金属氧化还原生物催化实现酶控制的立体选择性自由基环化为芳烃。
9.Enzymatic catalysis favours eight-membered over five-membered ring closure in bicyclomycin biosynthesis.
在双环霉素生物合成中，酶催化有利于八元环闭合而不是五元环闭合。
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1.Dual prodrugs strategy. Metabolic inactivation of drugs is a frequent problem. Now, Xiaogang Qu and colleagues present a catalytic hydrogen-bonded organic framework which acts as a carrier for masked bioactive substances. Not only does it activate the prodrug in cancer cells, but it also simultaneously synthesizes an enzyme inhibitor to prevent the metabolic inactivation of the in situ-generated chemotherapy agent.
双重前药策略。药物的代谢失活是一个常见的问题。现在，曲晓刚及其同事提出了一种催化氢键有机框架，可作为隐藏生物活性物质的载体。它不仅激活癌细胞中的前药，还同时合成酶抑制剂以防止原位产生的化疗药物代谢失活。
2.Best practices for experiments and reporting in photocatalytic CO2 reduction.
光催化二氧化碳减排实验和报告的最佳实践。
3.Activation of light alkanes at room temperature and ambient pressure.
在室温和环境压力下轻质烷烃的活化。
4.Revealing in-plane movement of platinum in polymer electrolyte fuel cells after heavy-duty vehicle lifetime.
揭示重型车辆寿命结束后聚合物电解质燃料电池中铂的平面内移动。
5.Photoenzymatic enantioselective intermolecular radical hydroamination.
光酶对映选择性分子间自由基氢胺化。
6.Structure and engineering of miniature Acidibacillus sulfuroxidans Cas12f1.
微型氧化硫酸杆菌Cas12f1的结构和工程。
7.The role of surface hydroxyls in the entropy-driven adsorption and spillover of H2 on Au/TiO2 catalysts.
表面羟基在 Au/TiO2 催化剂上熵驱动的 H2 吸附和溢出中的作用。
8.Spiro-salen catalysts enable the chemical synthesis of stereoregular polyhydroxyalkanoates.
螺-salen 催化剂能够化学合成有规立构聚羟基脂肪酸酯。
9.Hydrogen-bonded organic framework-based bioorthogonal catalysis prevents drug metabolic inactivation.
基于氢键有机框架的生物正交催化可防止药物代谢失活。
