分类： science

A groundbreaking medical innovation emerging from China promises to transform cardiac care through the development of a self-sustaining pacemaker that harnesses the heart’s kinetic energy. Researchers from the University of Chinese Academy of Sciences have created a revolutionary device that generates electricity from natural heartbeats, potentially eliminating the need for battery replacement surgeries that currently burden millions of cardiac patients worldwide.

The research team, led by Associate Professor Ouyang Han, introduced the concept of ‘symbiotic bioelectronics’ inspired by natural symbiotic relationships. This approach represents a paradigm shift in medical device engineering, focusing on creating implantable technology that coexists harmoniously with the human body while drawing power from biological processes.

Through seven years of dedicated research, the team developed an electromagnetic induction system that converts the mechanical energy of heart contractions into electrical power. The device achieves an impressive average output of 120 microwatts—significantly exceeding the 10 microwatts required for stable pacemaker operation. This surplus energy ensures reliable performance even during periods of reduced cardiac activity.

The technology incorporates an innovative magnetic levitation design that minimizes energy loss and internal friction. Laboratory testing demonstrated exceptional durability, with only 4% wear observed after simulating 300 million heartbeats—equivalent to a decade of continuous operation. This remarkable longevity suggests the device could potentially function throughout a patient’s lifetime without requiring replacement.

Notably, the capsule-sized device is constructed from biocompatible materials that reduce rejection risks and prevent blood clotting complications. Its leadless design and minimally invasive implantation procedure via femoral vein catheterization represent significant advancements over conventional pacemakers, reducing surgical trauma and recovery time.

In a critical validation study, the device successfully maintained normal heart rhythm in a pig suffering from severe bradycardia for one month, operating exclusively on power generated by the animal’s own heartbeats. This demonstration confirms both the technological feasibility and clinical potential of the self-powering system.

Professor Ouyang emphasized the economic implications of this breakthrough, noting that current imported leadless pacemakers cost approximately $23,000. The research team aims to produce devices with two to three times the lifespan of existing models at just one-third to half the price, potentially making advanced cardiac care more accessible globally.

The technology, recently detailed in Nature Biomedical Engineering, is scheduled for clinical trials before 2030. Researchers believe this symbiotic approach could revolutionize not only cardiac care but also other implantable medical devices for bone repair and neural regulation applications.

In the frosty climate of the Yellow River estuary, resident Xing Yan experiences unprecedented winter comfort without conventional heating systems. His home maintains ideal temperatures through pioneering geothermal technology tapping into energy sources nearly two kilometers beneath the Earth’s surface.

Niuzhuang township in Dongying, Shandong province, sits above extraordinary geothermal reservoirs where subterranean waters reach 85°C. The town’s heating facility operates through massive plate heat exchangers that transform 82°C geothermal water into 60°C heating fluid distributed through municipal pipelines.

This renewable energy system now serves all 13 urban residential compounds, three rural communities, and over 60 institutions throughout Niuzhuang. Covering 750,000 square meters—98% of the town’s heating needs—the geothermal network benefits approximately 22,000 residents across 7,000 households.

The environmental impact proves substantial: annual savings of 34,000 metric tons of standard coal and reduction of carbon emissions by roughly 80,000 tons. Unlike weather-dependent renewables, geothermal energy provides consistent baseload power unaffected by seasonal or diurnal variations.

Local businesses report significant benefits. Shandong Shuangfu Flowers Company utilizes geothermal heating across 100,000 square meters of greenhouses, maintaining optimal 26°C conditions for year-round orchid cultivation. General Manager Li Binghai confirms heating costs dropped by 15 yuan per square meter, creating 25 yuan per square meter savings compared to coal heating.

“Beyond cost reduction, geothermal provides unprecedented temperature stability,” Li noted. “We now control greenhouse climates via smartphone, extending flowering periods and enabling new variety development.” The company exports orchids to Vietnam, Russia, and Uzbekistan.

Shang Xinjian, director of Niuzhuang’s construction service center, explains the multi-tier utilization system: 80°C water extracted from 1,950-meter depths first heats residential areas, then circulates 50°C tailwater to agricultural greenhouses before being reinjected underground, creating a closed-loop conservation system.

China possesses enormous geothermal potential, with hydrothermal resources equivalent to 1.25 trillion tons of standard coal and annual exploitable capacity matching 1.86 billion tons. The nation leads global geothermal utilization efforts.

Future plans include expanding geothermal applications to agricultural product drying and aquaculture, establishing integrated industrial chains combining advanced farming, processing, and leisure industries. As Deputy Party Chief Song Ke stated: “This subterranean treasure will bring continued warmth and development opportunities to our community.”

In an extraordinary wildlife conservation breakthrough, a decade-old North China leopard designated F9 has defied biological expectations by establishing the nation’s first documented four-generation leopard dynasty. This remarkable matriarch, residing in the Taihang Mountains of Shanxi province, has not only become a great-grandmother but also successfully delivered three new cubs in 2025 despite her advanced age.

The conservation organization Chinese Felid Conservation Alliance reported that F9’s story carries profound scientific significance as her thriving lineage exists primarily outside formal protected areas, spanning multiple villages in Heshun county. First identified in June 2016 through infrared camera footage that captured her distinctive curled tail tip, this feline has surpassed all expectations by building a multi-generational legacy in the wild.

Her reproductive journey began in 2019 when infrared cameras captured her guiding three cubs—two females and one male—through their forest habitat. The dynasty expanded in 2022 when her eldest daughter, F26, was photographed with her own three cubs. The latest generational milestone occurred in late 2024 when F26’s daughter, nicknamed Pingping, was documented tenderly guiding her own offspring through moonlit forests.

At approximately 10 years old (equivalent to human early 60s), F9 has produced six known litters totaling 11 cubs, with four already establishing independent territories within the Heshun mountains. Her descendants demonstrate remarkable expansion patterns: her eldest son M16 now dominates the nearby Qingcheng forest area, while granddaughter Pingping has crossed County Highway 337 to establish territory further east.

This conservation success story stems from collaborative efforts between local authorities, research institutions, and community members. Since 2013, approximately 1,200 square kilometers in western Heshun have been designated as an ecological protection zone with stringent restrictions on polluting industries and large-scale development. The Laobaozi patrol team, established in 2015 with 20 local members, actively conducts biodiversity surveys, anti-poaching patrols, and community education.

The North China leopard, a leopard subspecies native to China, receives top national-level protection and was included on the IUCN Red List of Threatened Species in 2012. Heshun county has been identified as a vital habitat, with 89 adult leopards documented between 2015-2020, though fewer than 400 are estimated to remain in the wild globally.

Shanghai has established a groundbreaking consortium to revolutionize radiopharmaceutical innovation through the newly formed Shanghai Radiopharmaceutical Concept Verification Alliance. The initiative, officially launched on January 19, 2026, at Zhangjiang High-Tech Park in Pudong New Area, represents a strategic collaboration between medical, academic, and industry stakeholders.

Spearheaded by the Academy for Clinical Innovation and Translation of Shanghai, the alliance addresses critical challenges in early-stage radiopharmaceutical development. By consolidating fragmented verification resources and incomplete data systems that traditionally impede drug innovation, the consortium aims to create a centralized platform operating under market mechanisms.

This innovative platform will provide comprehensive end-to-end services including target validation and production of high-quality, GMP-like samples for preclinical studies. The launch ceremony occurred during the 2026 Shanghai Radiopharmaceutical Concept Verification Ecosystem Seminar, part of the broader Zhangjiang Pharma Valley Radiopharmaceutical Industry International Exchange Conference.

The event attracted international experts who presented on global advancements, while domestic specialists from Shanghai’s leading hospitals and research institutions contributed to panel discussions on cutting-edge areas including targeted alpha therapy and radiotheranostics—an emerging field combining diagnostic and therapeutic applications of radioactive drugs.

Multiple project agreements were formalized during the launch, with participants establishing frameworks for concept verification services, collaborative models, and profit-sharing mechanisms to ensure sustainable development of the initiative.

Chinese scientists have unveiled a groundbreaking refrigeration technology that simultaneously addresses three critical challenges: carbon emissions reduction, high cooling capacity, and superior heat transfer efficiency. Published in the prestigious journal Nature, this discovery represents a potential paradigm shift in thermal management systems.

The research team, led by Dr. Li Bing from the Chinese Academy of Sciences’ Institute of Metal Research, identified a novel dissolution barocaloric effect in an NH₄SCN salt solution. This innovative approach leverages pressure changes to trigger dramatic temperature fluctuations. When pressure is applied, solid NH₄SCN precipitates and releases heat; during depressurization, the salt rapidly dissolves while absorbing substantial thermal energy.

Laboratory results demonstrate remarkable performance characteristics: at room temperature, the solution’s temperature plummets by nearly 30 degrees Celsius within just 20 seconds. The cooling efficiency increases further at elevated temperatures, significantly outperforming existing solid-state caloric materials that have struggled with heat transfer limitations.

This breakthrough unifies the refrigerant and heat-transfer medium into a single fluid system, eliminating the efficiency compromises that have hampered previous environmentally friendly cooling technologies. The research team has designed a four-step cyclic system incorporating pressurization for heating, environmental heat dissipation, depressurization for cooling, and cooling capacity delivery.

Computational simulations reveal extraordinary potential: each cycle achieves 67 joules of heat absorption per gram of solution with an unprecedented 77 percent energy efficiency rating. This performance metric suggests strong commercial viability, particularly for large-scale applications such as data center cooling systems where thermal management represents both a technical challenge and significant operational expense.

The timing of this innovation coincides with growing global concerns about cooling-related energy consumption. According to the United Nations Environment Programme’s Global Cooling Watch 2025, worldwide cooling demand may triple by 2050 compared to 2022 levels, potentially doubling associated greenhouse gas emissions without technological intervention.

This discovery not only establishes a new fundamental principle for refrigeration but provides the scientific foundation for developing next-generation cooling technologies that combine environmental sustainability with commercial-grade performance requirements.

For underwater archaeologist Tseung Pak-long, the ocean’s surface tranquility often masks the volatile conditions that determine the success or failure of his missions. Recently traveling nearly eight hours from Hong Kong to Pingtan Island in Fujian province, Tseung arrived to assist with specialized diving training despite an approaching typhoon threatening to disrupt operations.

The delicate dance between archaeology and meteorology becomes most apparent during typhoon season, which spans May through November with peak intensity from July to September. Paradoxically, this period of heightened weather risk offers the most favorable underwater conditions for archaeological work. ‘Temperature and seabed conditions reach their optimal state during these months,’ Tseung explained, highlighting the profession’s inherent contradictions.

As Typhoon Wipha prompted Hong Kong’s highest hurricane warning, Tseung maintained hope that Fujian’s distance from the storm’s eye might spare their operations. This optimism proved short-lived as powerful gusts greeted his arrival, signaling the challenging conditions ahead.

The following day brought deceptive sunshine, but Tseung’s experience told a different story. ‘Favorable conditions for underwater work aren’t about surface weather,’ he clarified. ‘Everything depends on current intensity and subaquatic visibility.’

Underwater archaeology operates under stringent safety protocols that prioritize diver security above all discoveries. The discipline mandates buddy systems, strict time limitations, defined operational ranges, and precise workflows. Tseung gestured toward the seemingly calm sea, noting its appearance belied the turbulent currents churning beneath—the aftermath of the passing typhoon creating dangerous and murky conditions.

Accustomed to weather-related disappointments, Tseung philosophically compared underwater excavation to ‘opening a mystery box’ where even reaching a shipwreck site doesn’t guarantee significant findings. This unpredictability makes every successful dive particularly valuable.

The expedition’s fate was sealed by evening when rough seas forced all vessels to designated safe zones, canceling the next day’s planned operations. Accepting nature’s authority with equanimity, Tseung reflected that being at mercy of the elements simply represents the norm in his profession.

On the coastal frontier of Pingtan Island in Fujian province, where terrestrial landscapes merge with oceanic expanses, an unassuming four-story crimson structure houses China’s premier Underwater Archaeology Training Base. This facility represents the vanguard of the nation’s systematic efforts to reclaim its submerged cultural heritage from oceanic depths.

The discipline of underwater archaeology has evolved from specialized pursuit to established scientific practice in China, with veteran practitioners like retired archaeologist Cui Yong—among the nation’s pioneering figures in submerged cultural exploration—witnessing its transformative journey. As former deputy director of the Guangdong Institute of Cultural Relics and Archaeology, Cui embodies the dedication driving China’s maritime preservation initiatives.

Recent exhibitions, including the display of salvaged relics from the renowned Nanhai One shipwreck at Hong Kong’s Heritage Discovery Centre in August 2024, demonstrate the growing public engagement with these archaeological recoveries. The fourteenth-century merchant vessel, discovered in 1987 and meticulously excavated from the South China Sea, has become a symbolic representation of China’s maritime historical legacy, yielding over 180,000 cultural artifacts that illuminate ancient trade networks.

China’s methodological approach combines advanced sonar mapping, remotely operated vehicles, and specialized diver training to investigate shipwrecks spanning from the Song Dynasty (960-1279) to the Qing Dynasty (1644-1911). These scientific endeavors not only recover physical artifacts but reconstruct historical narratives of maritime commerce, technological exchange, and cultural interaction along ancient trade routes.

The national investment in underwater archaeology reflects broader recognition of oceanic heritage as an integral component of cultural preservation, with training programs developing new generations of archaeologists equipped to handle the unique challenges of submerged excavation and conservation.