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售价近2万元！三星发布P9移动固态：全球首款8TB 4000MB/s USB4硬盘_我的网站

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    Photo: VCG
Chinese researchers have developed a multifunctional electrode coating that addresses key challenges in long-term brain-computer interface (BCI) implantation, including signal loss and tissue adhesion, bringing BCI one step closer to clinical application, the Global Times learned from the research team behind the findings on Sunday. 
As an emerging field combining neuroscience and artificial intelligence (AI), BCI faces a major challenge of ensuring long-term compatibility between electrodes and brain tissue. Previous clinical trials showed that immune responses could cause implanted electrodes to retract after just three months, severely reducing signal quality and the number of available channels. 
This problem stems from chronic inflammation triggered by implants, which creates insulating scar tissue around electrodes and separates them from neurons. Irreversible adhesion between electrodes and brain tissue after long-term implantation also makes device removal risky, potentially causing brain injury during follow-up surgeries.
Experiments showed that flexible neural electrodes coated with this material could operate stably in the brain for more than 300 days and could be safely removed without causing damage. This means the universal coating technology can make electrodes not only operate stably over the long term but can also be safely removed and replaced after aging, paving the way for long-term BCI applications.
Developed by the research team led by Zhang Wei at the Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, associated with Beijing Tiantan Hospital, Shanghai Institute of Microsystem and Information Technology and NeuroXess, a high-tech life science company specializing in BCI technologies, the cationic alternating peptide electrode coating preserves electrode flexibility and conductivity, while offering antibacterial, anti-protein adsorption and immune-rejection-inhibiting functions. 
A 300-day animal study showed the coating's effectiveness. Bare electrodes experienced a sharp loss of recording capability after 90 days of implantation and could barely detect neuronal signals after 300 days. In contrast, coated electrodes maintained stable recording channels and consistently captured neural signals above 155 microvolts. 
In terms of neural modulation, after 300 days of implantation, conventional electrodes required a current of 100 microamps to induce weak limb responses, while coated electrodes triggered clear movements with only 2 microamps, improving modulation efficiency by 50 times. 
Notably, the removal tests highlighted a key advantage of the coating that electrodes no longer form irreversible bonds with brain tissue. In the experiments, the coated electrodes were removed intact, with minimal damage to the surrounding brain tissue, Zhang told the Global Times on Sunday.
。    8月26日消息，三星在Gamescom 2026展会上正式发布了全新的P系列移动固态硬盘，包含旗舰型号P9与耐用型号P7。其中三星P9成为全球首款在8TB超大容量下，通过USB4接口实现4000MB/s顺序读取速度的移动固态硬盘。     据三星官方介绍，P9系列其顺序读取与写入速度分别高达4000MB/s和3800MB/s，性能表现是目前在售热门产品T9的两倍。          P9最大亮点便是搭载USB4传输协议，一举打破以往USB外接存储长期面临的带宽桎梏，再配合高度集成的自研控制器，整机实现了出色的温控表现，长时间高负载下性能输出更稳。    外观上，P9延续了三星移动硬盘一贯的紧凑设计，接口部分采用了加固处理的USB Type-C，而同期发布的P7则主打可靠性，虽然读写参数略逊于P9，但其外壳具备抗冲击能力，可承受1.8米跌落冲击。    目前P9、P7两款新品均提供1TB、2TB、4TB、8TB四种容量版本。          旗舰型号P9 pSSD售价方面，1TB售价339.99美元（约2291元人民币）、2TB售价649.99美元（约4379元人民币）、4TB售价1349.99美元（约9095元人民币）、8TB售价2699.99美元（约18190元人民币）。    定位稍低的P7 pSSD售价方面，1TB售价289.99美元（约1954元人民币）、2TB售价549.99美元（约3705元人民币）、4TB售价1149.99美元（约7747元人民币）、8TB售价2289.99美元（约15428元人民币）。    全球开售日期定在8月31日，现阶段三星还没有公布两款产品的国行上市时间表以及国内售价。

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