2024-08-28 03:43:14前沿信息
研究人员揭示了催化剂活性位点的原子尺度细节

The chemical and energy industries depend upon catalysts to drive the reactions used to create their products. Many important reactions use heterogeneous catalysts—meaning that the catalysts are in a different phase of matter than the substances they are

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2024-08-28 03:33:14动物植物
研究人员阐明了东非裂谷系人类进化的生物地理背景

Ignacio A. Lazagabaster, a Ramón y Cajal researcher at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH), is part of the international team that has published a study of the biogeographic context of human evolution in the East Africa

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2024-08-28 03:31:01前沿信息
纳米材料可能增强植物对高土壤盐分的耐受性

Soil salt concentrations above the optimal threshold for plant growth can threaten global food security by compromising agricultural productivity and crop quality. An analysis published in Physiologia Plantarum has examined the potential of nanomaterials—

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2024-08-28 03:21:08动物植物
里约热内卢海岸鲨鱼肌肉和肝脏中发现可卡因

A team of marine biologists and ecotoxicologists affiliated with several institutions in Brazil has found cocaine in muscle and liver samples collected from Brazilian Sharpnose sharks harvested off the coast of Rio de Janeiro. Their study, published in th

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2024-08-28 03:20:39前沿信息
新系统增强了纳米纤维基生物电极的机械稳定性

Flexible electronic devices based on electrospun nanofiber membranes (ENM) are attracting significant attention due to their high biocompatibility and excellent mechanical performance. However, patterning conductive materials on fiber substrates typically

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2024-08-28 03:07:48动物植物
研究发现,在东非大草原上,一头大象可以养活200多万只蜣螂

How many dung beetles are there in East Africa? That question inspired a research project more than 20 years ago when Frank Krell was a research entomologist with the Natural History Museum London. Throughout a three-year-long project along with his wife,

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2024-08-28 03:04:37前沿信息
新的纳米材料可以促进清洁能源的氢气生产

Have you ever considered how nanotechnology could transform our approach to clean energy? In recent research, we've been exploring nanoscale covalent organic frameworks (nano-COFs) that show exceptional potential for enhancing photocatalytic hydrogen pro

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2024-08-28 02:56:02动物植物
研究确定了美国地区和政策目标下可持续航空燃料的最佳生物能源作物

Researchers analyzed the financial and environmental costs and benefits of four biofuels crops used to produce sustainable aviation fuels in the U.S. They found that each feedstock—corn stover, energy sorghum, miscanthus or switchgrass—performed best in a

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2024-08-28 02:52:58前沿信息
茶叶酿造出银纳米粒子,用于发展中国家的伤口愈合

Wound infections, particularly associated with burns, are a serious health problem causing high morbidity and mortality. Aside from hygiene and basic dressings, antibiotics are the standard treatment for serious wounds. However, cost, access, and emerging

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2024-08-28 02:43:55动物植物
研究表明,产卵哺乳动物内外都是独一无二的

The identification of a key gene in monotremes has increased our understanding of why the stomachs of platypuses and echidnas are atypically small, non-acidic, and, in the instance of platypuses, lack a pyloric sphincter.

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2024-08-28 02:36:19前沿信息
高速原子力显微镜研究为甲型流感病毒复制提供了见解

Researchers at Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, IMDEA Nanoscience (Madrid, Spain) and CNB-CSIC (Madrid, Spain) report in ACS Nano experiments that reveal a cycle of conformational stages that recombinant Influenza A genomes

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2024-08-28 02:29:31动物植物
下一代生物传感器揭示赤霉素在豆类固氮中的关键作用

Researchers at the University of Cambridge have demonstrated that the plant hormone gibberellin (GA) is essential for the formation and maturation of nitrogen-fixing root nodules in legumes and can also increase nodule size. They identified the specific t

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