{"title":"Hydration layer mediates near-frictionless sieving of monovalent ions","authors":"Jinlei Yang, Bin Tu, Yawei Liu, Sai Xu, Kaihang Zhang, Shixian Xin, Han Xie, Zhouwen Cao, Shuting Xu, Yue Ying, Zhifei Sun, Munan Fang, Xiaopeng Zhang, Xinghua Shi, Lianshan Li, Zhiyong Tang","doi":"10.1038/s41565-026-02245-7","DOIUrl":"10.1038/s41565-026-02245-7","url":null,"abstract":"Achieving simultaneous high selectivity and permeability for monovalent cation separation remains challenging due to energy-intensive dehydration requirements in current rigid nanopores. Here we develop a hydration-layer-mediated sieving strategy by anchoring hydrated ions at the pore rim of a covalent organic framework monolayer to form dynamic angstrom-scale hydrapores. Ion transport is regulated via attraction and repulsion between bound and migrating ions, arising from the merging and squeezing of hydration layers, enabling precise discrimination without full dehydration. Under a concentration gradient (∆C = 1 M), the membrane exhibits selectivity of 148 for K+/Li+ and 42 for Na+/Li+ with a K+ permeance of 2 × 104 mol m−2 h−1, three orders of magnitude higher than those of state-of-the-art membranes. A low activation energy of 5.5 kcal mol−1 indicates near-frictionless transport, offering a new paradigm for monovalent cation separation. A covalent organic framework monolayer membrane enables high selectivity and flux for the separation of Li+ from Na+ and K+. Ion transport is regulated by attraction and repulsion between bound and migrating ions via hydration-layer interactions, enabling selective transport without full dehydration.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 9","pages":"1270-1276"},"PeriodicalIF":37.5,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148795928","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Xiangchun Meng (, ), Yong Hyun Kwon (, ), Bojun Wang (, ), Xiao Xiao (, ), Jie Chen (, ), Hyeon Mo (, ), Yoojin Park (, ), Sera Jeon (, ), Eunbi Cho (, ), Byung-Ok Choi (, ), Peng Tao (, ), Wai-Yeung Wong (, ), Sang-Woo Kim (, )
{"title":"Bioresorbable and optically readable triboelectric implants enabled by nanoscale iridophosphors","authors":"Xiangchun Meng \u0000 (, ), Yong Hyun Kwon \u0000 (, ), Bojun Wang \u0000 (, ), Xiao Xiao \u0000 (, ), Jie Chen \u0000 (, ), Hyeon Mo \u0000 (, ), Yoojin Park \u0000 (, ), Sera Jeon \u0000 (, ), Eunbi Cho \u0000 (, ), Byung-Ok Choi \u0000 (, ), Peng Tao \u0000 (, ), Wai-Yeung Wong \u0000 (, ), Sang-Woo Kim \u0000 (, )","doi":"10.1038/s41565-026-02256-4","DOIUrl":"10.1038/s41565-026-02256-4","url":null,"abstract":"Implantable bioelectronics are typically inaccessible once implanted, and therefore structural damage, degradation and functional loss often go undetected until complications arise. Reliance on batteries further exacerbates these risks by imposing limited lifetimes, leakage hazards and non-resorbable components that may require surgical removal. Here we report a battery-free, bioresorbable triboelectric implant that enables externally readable, on-demand visualization of device status while generating electrical output. A data-driven materials-to-device workflow combines machine-learning-assisted photophysical screening with molecular-dipole-moment-based selection to identify nanoscale iridium(III) complexes optimized for both optical reporting and triboelectric charge generation. The resulting devices integrate a transcutaneous phosphorescent readout with ultrasound-driven energy harvesting, producing outlines visible to the unaided eye under handheld illumination and generating up to 3.6 Vpp at 0.5 W cm−2 of ultrasound power. In vivo studies in mice demonstrate that optical readouts track implant position, morphology and damage, correlate structural defects with loss of electrical output, and monitor integrity and bioresorption over 38 weeks. This work establishes a transient in vivo power platform whose morphology reports on structural integrity and energy-harvesting function, offering a route to observable bioelectronic implants and supporting timely intervention. A battery-free, bioresorbable triboelectric implant combines ultrasound energy harvesting with visible phosphorescent self-reporting, enabling non-invasive, long-term in vivo tracking of implant integrity, function and resorption for up to 38 weeks","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 10","pages":"1438-1447"},"PeriodicalIF":37.5,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148728942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nam Thanh Trung Vu, Mingjun Chen, Yi Wei Ho, Qingyun Wu, Cheng Quan Wong, Yuan Chen, Adam K. Budniak, Leyi Loh, Ivan Verzhbitskiy, Kenji Watanabe, Takashi Taniguchi, Michel Bosman, Lay Kee Ang, Maxim Trushin, Goki Eda
{"title":"Point-like photovoltaic junction in 2D semiconductor homobilayer","authors":"Nam Thanh Trung Vu, Mingjun Chen, Yi Wei Ho, Qingyun Wu, Cheng Quan Wong, Yuan Chen, Adam K. Budniak, Leyi Loh, Ivan Verzhbitskiy, Kenji Watanabe, Takashi Taniguchi, Michel Bosman, Lay Kee Ang, Maxim Trushin, Goki Eda","doi":"10.1038/s41565-026-02251-9","DOIUrl":"10.1038/s41565-026-02251-9","url":null,"abstract":"Atomically thin semiconductor junctions offer a platform for probing optoelectronic processes beyond the continuum limit, where reduced screening and strong exciton binding make local fields especially important for charge separation. Yet it remains unclear how individual dopants contribute to the photovoltaic response when the junction thickness becomes comparable with the atomic length scales and smaller than conventional depletion or diffusion lengths. Here we demonstrate this concept by probing the microscopic photoresponse of a van der Waals semiconductor homobilayer containing ionizing acceptors. Using photoconductive atomic force microscopy on vanadium-doped WSe2 (V:WSe2) bilayers, we directly visualize nanometre-scale photocurrent hotspots centred on single dopants, which have opposite current polarities for dopants in the top and bottom layers. Vertical WSe2/V:WSe2 homobilayer devices show that the macroscopic photocurrent scales linearly with dopant concentration and exhibits a compensation voltage that is independent of illumination power and dopant density, in contrast to bulk homojunction devices. Photocurrent spectroscopy and quasi-classical modelling indicate that charged dopants locally convert tightly bound intralayer excitons into charge-separated interlayer states, thereby enabling efficient exciton dissociation within a region of about 1 nm. These results establish dopant-defined point-like junctions as the elementary photovoltaic units in atomically thin homobilayers. The miniaturization of a semiconductor junction down to a single dopant is demonstrated; the tiny junction converts light into electrical current within a nanometre-sized spot, a signal that is subsequently detected across the much larger semiconducting homobilayer.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 10","pages":"1406-1412"},"PeriodicalIF":37.5,"publicationDate":"2026-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148729015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Nanophotonics beyond miniaturization","authors":"","doi":"10.1038/s41565-026-02259-1","DOIUrl":"10.1038/s41565-026-02259-1","url":null,"abstract":"Across light generation, transmission, amplification, modulation and detection, nanoscale design is transforming photonics from an exercise in miniaturization into a platform for engineering optical functions.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 8","pages":"1061-1061"},"PeriodicalIF":37.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41565-026-02259-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruo-Xi Jin, Xincheng Lei, Xiao-Chuan Su, Xing Zhang, Yao Zhao, Xiaodong Qi, Zhuo-Ya Lu, Xu-Sheng Zhang, Yu-Ying Zhang, Jin Zhang, Qingxi Yuan, Jing Zhang, Lirong Zheng, Yu-Jie Guo, Sen Xin, Dong Su, Rui Wen, Li-Jun Wan, Yu-Guo Guo
{"title":"Multi-element nanoscale doping of iron-rich sodium layered oxides enables ampere-hour-level Na-ion batteries","authors":"Ruo-Xi Jin, Xincheng Lei, Xiao-Chuan Su, Xing Zhang, Yao Zhao, Xiaodong Qi, Zhuo-Ya Lu, Xu-Sheng Zhang, Yu-Ying Zhang, Jin Zhang, Qingxi Yuan, Jing Zhang, Lirong Zheng, Yu-Jie Guo, Sen Xin, Dong Su, Rui Wen, Li-Jun Wan, Yu-Guo Guo","doi":"10.1038/s41565-026-02257-3","DOIUrl":"10.1038/s41565-026-02257-3","url":null,"abstract":"The Fe(III)|Fe(IV) redox couple in iron-containing Na layered oxides enables high-capacity, cost-effective positive electrodes. However, although a high iron content (when the Fe concentration exceeds 33 at.% on transition metal layers) leads to rapid capacity decay during battery cycling, the underlying mechanism of this detrimental behaviour remains unclear. Here we report that the electrochemomechanical failure mechanism in Fe-rich Na layered oxides is related to the stability of the Fe octahedral coordination environment at the nanoscale. Fe-ion migration and dissolution govern the formation of intragranular microcracking in the positive electrode active material particles, accompanied by dislocations and an uneven distribution of mechanical stress. Driven by the non-uniform strain field, microcracks proliferate and planar gliding occurs, resulting in a stepped surface. By nanoscale doping with Al(III) (1 at.%), Y(III) (1 at.%) and Co(III) (3 at.%), we inhibit the Fe-ion migration and dissolution, thereby reducing cracks and planar gliding. Using the multi-element nanoscale-doped iron-rich sodium layered oxide at the positive electrode and a hard-carbon-based negative electrode, we assembled and tested 2.7-Ah Na-ion pouch cells showing an initial specific energy of 121 Wh kg−1 (based on the total mass of the cell) at 26 mA g−1, and a discharge capacity retention of 83.4% after 2,000 cycles at 130 mA g−1 at 25 °C. Multi-element nanoscale doping suppresses electrochemomechanical failure caused by unstable Fe coordination in Fe-rich Na layered oxides, yielding long-lifespan ampere-hour-level Na-ion batteries.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 10","pages":"1429-1437"},"PeriodicalIF":37.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148722512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Denys Makarov, Oleksandr V. Pylypovskyi, Rui Xu, Carmine Ortix
{"title":"Shape, strain and spin texture as a modern triad for magnetic materials","authors":"Denys Makarov, Oleksandr V. Pylypovskyi, Rui Xu, Carmine Ortix","doi":"10.1038/s41565-026-02232-y","DOIUrl":"10.1038/s41565-026-02232-y","url":null,"abstract":"Curvilinear magnetism has emerged as a powerful approach to create chiral and anisotropic responses at the nanoscale, using the effects of geometric curvature and topology. This concept complements traditional material screening when tailoring material properties for specific applications. Current research in curvilinear magnetism largely focuses on mean-field micromagnetics—a computational approach to predict magnetic microstructures. The roles of inhomogeneous strains and curvature-induced magnetoelectric coupling, mediated by spin textures, have gained attention only recently. In this Review, we discuss these novel phenomena and their relevance for designing ‘metageometric’ materials. Advances in geometrically engineered magnetic nanostructures could lead to exciting opportunities for energy-efficient, scalable nanoelectronic devices. This Review discusses the role of inhomogeneous strains, geometrically broken spatial symmetries and curvature-induced magnetoelectric coupling mediated by spin textures for the realization of future nanoelectronic devices.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 8","pages":"1068-1082"},"PeriodicalIF":37.5,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148710544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Longjiang Ding, Sisi Fan, Xiang Hao, Xinxin Jing, Jiahui Liu, Andreas Peil, Pengfei Zhan, Dechang Li, Stephan Nussberger, Na Liu
{"title":"A programmable DNA origami nanosyringe for directed membrane translocation","authors":"Longjiang Ding, Sisi Fan, Xiang Hao, Xinxin Jing, Jiahui Liu, Andreas Peil, Pengfei Zhan, Dechang Li, Stephan Nussberger, Na Liu","doi":"10.1038/s41565-026-02249-3","DOIUrl":"10.1038/s41565-026-02249-3","url":null,"abstract":"Bacterial contractile injection systems provide a model for membrane penetration and targeted delivery of molecular cargo through mechanical actuation. Replicating these features in synthetic nanoscale systems remains challenging, particularly with respect to coupling structural organization with dynamic actuation, reversibility and spatiotemporal regulation. Here we report a DNA origami nanosyringe that integrates these capabilities to enable programmable membrane translocation. The DNA origami nanosyringe comprises two ~70-nm DNA origami bundles crosslinked by a ~10-nm gold nanoparticle. One bundle forms a cholesterol-functionalized membrane-anchoring base, whereas the other serves as a DNA fuel-driven sliding needle. After binding to supported lipid bilayers or vesicle membranes, DNA-fuel actuation drives the needle downwards in ~14-nm steps, thereby enabling membrane penetration, while reverse actuation retracts the needle and promotes membrane resealing. We show that this device provides controllable delivery of cargo tethered to the needle tip into lipid-bounded compartments and can regulate biochemical processes within cell-sized environments, including membrane-localized hybridization chain reactions, RNA transcription and catalytic RNA cleavage. These results demonstrate a strategy for constructing dynamic DNA devices that operate at membrane interfaces and coordinate mechanical actuation with biochemical function. A membrane-anchoring nanodevice that integrates reversible, fuel-driven mechanical actuation enables programmable membrane penetration, cargo delivery and spatiotemporal regulation of biochemical reactions in synthetic cells.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 10","pages":"1459-1466"},"PeriodicalIF":37.5,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41565-026-02249-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148713209","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Programmed membrane breaching with nanosyringes unlocks control over biochemical responses in synthetic cells","authors":"Roger Rubio-Sánchez","doi":"10.1038/s41565-026-02252-8","DOIUrl":"10.1038/s41565-026-02252-8","url":null,"abstract":"A nanodevice inspired by bacterial contractile injection systems enables reversible, fuel-actuated membrane penetration and spatio-temporally controlled cargo delivery for programmable biochemical regulation in synthetic cells.","PeriodicalId":18915,"journal":{"name":"Nature nanotechnology","volume":"21 10","pages":"1381-1382"},"PeriodicalIF":37.5,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148713246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}