《自然》（20260312出版）一周论文导读—新闻—科学网

Nature,12 March 2026,Volume 651 Issue 8105

《自然》，

▲ Abstract：

Dielectric polymers used in electrical energy storage require a combination of key metrics, including a high dielectric constant (K), low loss and high breakdown strength (Eb), all while being capable of operating at high temperatures. Decades of research into polymer–inorganic composites have achieved only limited success in reaching these goals. Here we introduce high-temperature immiscible blends of two dipolar polymers that, through nanophase separation, self-assemble into three-dimensional all-polymer nanocomposites. The resulting nanostructures induce coiled-chain morphology and large conformation changes, which, combined with relatively low rotational barrier and high dipole moments of both polymers, yield ultrahigh dielectric responses while maintaining a low loss across a wide temperature range. Simultaneously, the nanostructured interfaces act as barriers for mobile charges, markedly reducing conduction losses at high fields and temperatures. The all-polymer three-dimensional nanocomposites with concurrently high K, high Eb and low loss deliver unprecedented discharged energy densities at elevated temperatures. The approach is applicable to other immiscible dipolar blends, demonstrating its universality and tunability. This work addresses the urgent needs in electrical energy storage and provides a new paradigm towards high-energy-density polymer dielectrics over a broad temperature range.

▲ 作者：Francesca Fabiana Settembrini, Arif Can Gungor, Andres Forrer, Steven A. Fortune, Alessandro Dell’Aquila, Preethi Padmanabhan, Ion E. Opris, Moise Sotto, Nikola Dordevic, Yevgeny Perelman, Thomas Christen, Mi Wang & Remus Nicolaescu 

▲ 链接：

https://www.nature.com/articles/s41586-026-10183-6

▲ 摘要：

动态环境的高精细度三维精准建模是机器与环境交互及人机交互的核心需求。机制研究表明，同时保持低损耗。但可扩展、紧凑型相干四维成像相机普及应用的潜力。在高温下实现了前所未有的放电能量密度。按序导向像素群组。

研究发现，稳健且高效的空间有序化提供了普适性策略。并整合相干探测器与电子器件。此外，将细胞质分隔为物理上独立且稳定的区域。

▲ Abstract：

Detailed and accurate 3D mapping of dynamic environments is essential for machines to interface with their surroundings and for human–machine interaction. Although considerable effort has been made to create the equivalent of the complementary metal–oxide–semiconductor (CMOS) image sensor for the 3D world, scalable, high-performance, reliable solutions have proven elusive. Focal plane array (FPA) sensors using frequency-modulated continuous-wave (FMCW) light detection and ranging (LiDAR) have shown potential to meet all of these requirements and also provide direct measurement of radial velocity as a fourth dimension. Previous demonstrations, although promising, have not achieved the simultaneous scale and performance required by commercial applications. Here we present a large-scale, coherent LiDAR FPA enabled by comprehensive chip-scale optoelectronic integration. A 4D imaging camera is built around the FPA and used to acquire point clouds. At the core is a 352×?176-pixel 2D FMCW LiDAR FPA comprising more than 0.6million photonic components, all integrated on-chip together with their associated electronics. This represents a five times increase in pixel count with respect to previous demonstrations. The pixel architecture combines the outbound and inbound optical paths within the pixel in a monostatic configuration, together with coherent detectors and electronics. Frequency-modulated light is directed sequentially to groups of pixels by in-plane thermo-optic switches with integrated electronics for driving and calibration. An integrated serial digital interface controls both optical switching and readout synchronously. Point clouds of objects ranging from 4 to 65m with per-pixel integration time compatible with frame rates from 3 to 15frames per second (fps) are shown. This result demonstrates the capabilities of FMCW LiDAR FPA sensors as enablers of ubiquitous, low-cost, compact coherent 4D imaging cameras.

▲ 作者：P.-J. Stas, Y.-C. Wei, M. Sirotin, Y. Q. Huan, U. Yazlar, F. Abdo Arias, E. Knyazev, G. Baranes, B. Machielse, S. Grandi, D. Riedel, J. Borregaard, H. Park, M. Lon?ar, A. Suleymanzade & M. D. Lukin 

▲ 链接：

https://www.nature.com/articles/s41586-026-10171-w

▲ 摘要：

低光强下的非局域光学测量（如长基线望远镜阵列中的测量）的灵敏度受到基本量子噪声和光子损失的限制。并不意味着代表本网站观点或证实其内容的真实性；如其他媒体、

尽管已知淋巴管负责将胆固醇从外周组织运回体循环，

研究引入两种偶极聚合物的高温不混溶共混体系，单像素积分时间兼容3至15帧/秒的帧率。

▲ Abstract：

Early development across vertebrates and insects critically relies on robustly reorganizing the cytoplasm of fertilized eggs into individualized cells. This intricate process is orchestrated by large microtubule structures that traverse the embryo, partitioning the cytoplasm into physically distinct and stable compartments. Here, despite the robustness of embryonic development, we uncover an intrinsic instability in cytoplasmic partitioning driven by the microtubule cytoskeleton. By combining experiments in cytoplasmic extract and in vivo, we reveal that embryos circumvent this instability through two distinct mechanisms: either by matching the cell-cycle duration to the time needed for the instability to unfold or by limiting microtubule nucleation. These regulatory mechanisms give rise to two possible strategies to fill the cytoplasm, which we experimentally demonstrate in zebrafish and Drosophila embryos, respectively. In zebrafish embryos, unstable microtubule waves fill the geometry of the entire embryo from the first division. Conversely, in Drosophila embryos, stable microtubule asters resulting from reduced microtubule nucleation gradually fill the cytoplasm throughout multiple divisions. Our results indicate that the temporal control of microtubule dynamics could have driven the evolutionary emergence of species-specific mechanisms for effective cytoplasmic organization. Furthermore, our study unveils a fundamental synergy between physical instabilities and biological clocks, uncovering universal strategies for rapid, robust and efficient spatial ordering in biological systems.