中国跳远在美国创造历史！16日，25岁的王嘉男在美国尤金田径世锦赛男子跳远决赛中上演“绝杀”，以8米36的成绩夺冠，为中国队收获本届世锦赛首金，这也是中国男子跳远拿到的世锦赛历史首金，王嘉男就此成为继刘翔、王浩之后，中国第三位世锦赛男子冠军。         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.
。当日稍早结束的女子铅球决赛中，东京奥运会冠军巩立姣投出20米39获得亚军，另一位中国选手宋佳媛排名第6。

B | “金牌的梦，我做了至少3次”王嘉男以预赛第十的身份跻身本届世锦赛男子跳远决赛，赛前并不被外界看好：一方面，决赛对手包括东京奥运会冠军滕托格洛、瑞士选手艾哈迈尔等名将；另一方面，本届世锦赛之前，王嘉男今年只参加过一次室外比赛。

C | 不过决赛中的王嘉男状态明显提升，前5跳的最好成绩是8米03，排在第5。王嘉男的最后一跳反超滕托格洛的8米32，完成比赛后的王嘉男张开双臂奔跑庆祝，这是他第二次登上世锦赛领奖台，2015北京田径世锦赛上，王嘉男夺得男子跳远铜牌。

D | “世锦赛金牌的梦，我这些年做了至少3次，今年还梦到一回”，王嘉男赛后称，但每一次梦醒之后，他都不得不提醒自己要“现实一点”，“我觉得这对我来说不是什么好梦，我还是应该稳步前进”。据悉，王嘉男曾是男子十项全能运动员，后来转项到跳远。

E |

王嘉男的亮眼表现引发外媒关注，路透社17日称，王嘉男前5次尝试后虽然没有挤进前三，但仍在一路飙升。

F | 希腊名将滕托格洛原本有望达成职业生涯全满贯，但王嘉男的出现令他的梦想破灭。法新社称，王嘉男的夺冠成绩领先奥运冠军滕托格洛4厘米，艾哈迈尔以8米16的成绩获得铜牌。“缺少那一下狠劲”女子铅球决赛，美国名将艾丽在决赛第一投就投出20米49，给其他选手造成不小压力。

G | 巩立姣则专注于自己的节奏，逐步提高个人最好成绩，但最后一投仍未能完成反超，以10厘米的劣势不敌艾丽获得亚军。虽然无缘世锦赛三连冠，但这已经是巩立姣连续7届世锦赛收获奖牌。“这个成绩我很知足，但不太满足，毕竟恢复训练时间太短了。”巩立姣赛后说，“但通过今天我的表现，我对自己还是很有信心的。我只要系统训练，不受伤的情况下，就没问题！”她还表示，“其实今天感觉还挺好的，毕竟是东京奥运会后的第一场大赛，还挺兴奋的，但缺少那一下狠劲”。今年3月在贝尔格莱德举行的2022年世界室内锦标赛中，艾丽获得女子铅球银牌，随后在6月连续刷新个人最佳成绩，还在2周前的全美田径锦标赛上投出20米51的今年世界最好成绩。除了女子铅球，女子标枪、铁饼和链球的今年世界最好成绩均由美国选手创造。

H | 国际田联官网赛后称，“室外赛季保持不败的艾丽成为美国历史上首位女子铅球世界冠军。比赛中有一段时间，海沃德体育场的观众都在观望，期待巩立姣再拿出11厘米击败艾丽，但巩立姣的最后一投只投出19米89”。本届世锦赛前两个比赛日中，中国选手在其他田赛项目上也有稳定发挥。

I | 罗娜投出71.36米，排名资格赛第10，晋级女子链球决赛。徐慧琴、李玲分别跃过4.50米和4.35米，携手杀进女子撑杆跳决赛。

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