马沙蒂莱指出，过去二十年，两国之间的双边经济贸易和投资交流持续扩大，中国一直是南非最大的贸 易伙伴。他说，中国企业在南非进行了大量投资，包括银行业、制造业和可再生能源，同时，南非的矿 产品、农产品和制成品进入中国市场，这些都推动了南非的经济发展。 21世纪经济报道记者郑青亭北京报道 "南非政府正积极与包括中国在内的国际伙伴合作，推进我们的电动车(EV)产业。"谈及电动汽车产业崛 起对当地汽车产业的影响，南非副总统马沙蒂莱17日在北京对21世纪经济报道记者说，"我们视此为机 遇，而非挑战。" 当天早些时候，马沙蒂莱在于中国国际供应链促进博览会期间举行的南非—中国投资论坛上发表致辞时 说，随着两国关系的不断深化，中国企业进入南非市场的新机会不断涌现，特别是在可再生能源、绿色 氢能、能源存储、基础设施和物流、特别经济区、制药和医疗设备、关键矿产的增值以及数字经济等领 域。 马沙蒂莱表示，南非看好绿色产业给经济增长和就业岗位带来的机会，南非已推出促进南非电动车行业 发展的具体政策。"我们拥有世界上最大的铂族金属储量，这为生产可持续能源技术(包括电动车、新能 源车和可再生能源组件)提供了竞争优势。凭借中国在开发和实施创 ...

Core Viewpoint - The research team has developed a portable microbial fuel cell using 3D printed living hydrogels, which has significant potential for applications in medical devices and sustainable energy supply [1][2]. Group 1: Technology and Innovation - The microbial fuel cell integrates bioelectrical stimulation devices to achieve precise regulation of electrophysiology and blood pressure, showcasing its application potential in disease treatment [1]. - The innovative 3D printed living hydrogel material, based on Shewanella bacteria, allows for the construction of complex structures and enhances mechanical strength and conductivity [2]. - The micro fuel cell, with a diameter of only 20mm, can output a stable voltage of 450mV and complete up to 10 cycles of "self-charging-discharge" [2]. Group 2: Performance and Advantages - The microbial fuel cell demonstrates a high bacterial survival rate of 97% after energy cycles, maintaining over 90% survival even after 100 hours of continuous operation, indicating excellent biocompatibility [2]. - The device avoids the use of scarce metals and toxic electrolytes found in traditional batteries, presenting significant environmental advantages [2]. - Although the energy density is currently at 0.008 watt-hours per liter and power density at 8.31 microwatts per square centimeter, it is sufficient for low-power devices [2]. Group 3: Application and Future Directions - The research targets instantaneous neural stimulation in precision medicine, with successful results in rat experiments showing significant blood pressure reduction [3][4]. - Future plans include developing implantable bio-batteries powered by human blood glucose, aiming for self-sustaining medical devices [4]. - The research reflects a cross-disciplinary innovation between synthetic biology and materials science, with promising applications in medical implants and environmental monitoring sensors [4].