Nano-Micro Letters最新文献

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The pursuit of safer and higher-energy-density batteries has driven the advancement of all-solid-state lithium batteries (ASSLBs). Among various material systems, sulfide solid-state electrolytes (SEs) stand out as highly promising candidates owing to their exceptional ionic conductivity. Nevertheless, their extreme sensitivity to moisture results in the release of toxic H₂S and rapid structural degradation, which severely impedes their scalable manufacturing under ambient conditions. A bifunctional (3-mercaptopropyl)trimethoxysilane (MPTMS) coating strategy is herein presented to shield Li_5.5PS_4.5Cl_0.8Br_0.7 (LPSCBr) from moisture-induced degradation. The MPTMS layer forms a hydrophobic barrier of approximately 10 nm, which reduces H₂S emission by 93.0% after 35 min of exposure to 30% relative humidity, while maintaining 83.1% of the initial ionic conductivity (10.8 mS cm⁻¹). This approach tackles the core challenge associated with sulfide solid-state electrolytes: the realization of compatibility with controlled ambient air without sacrificing critical electrochemical properties. The modified electrolyte maintains a high ionic conductivity (> 5.7 mS cm⁻¹) even after 10 h of air exposure. When applied in all-solid-state cells paired with LiNi_0.83Co_0.11Mn_0.06O₂ cathodes, it exhibits remarkable electrochemical performance, delivering a capacity retention of 84.6% after 1000 cycles. By enabling moisture-tolerant processing, MPTMS-modified LPSCBr SEs lay a solid foundation for the scalable, high-performance, and cost-effective production of ASSLBs.

Advanced robotic systems require tactile perception to interact reliably with objects in environments where visual information is limited by occlusion, illumination variations, and focusing issues. However, conventional tactile sensors are limited to single-stimulus recognition and face fundamental challenges in scalability and functionality, as miniaturizing sensor pixels reduces baseline signal levels and degrades the SNR. This study presents a high-spatiotemporal and multimodal soft tactile interface for simultaneous perception of structural and thermal profiles, fabricated through a layered architecture enabled by additive manufacturing. The proposed interface incorporates a 3D-stacked capacitive pressure sensor that combines buried interdigitated capacitors and a parallel-plate capacitor, and a reduced graphene oxide based temperature sensor within the same pixel area. The 3D-stacked electrode architecture enhances baseline capacitance within a miniaturized pixel footprint, and a via-free, interlayered interconnection scheme resolves wiring complexity in the temperature sensor array. Each sensing layer operates through independent transduction mechanisms, enabling the simultaneous perception of structural and thermal profiles with minimal cross-interference. The fabricated multimodal array can spatially resolve both contact geometry and localized thermal distributions with high-spatiotemporal resolution. Furthermore, by applying a tactile scanning strategy in robotic perception, the platform successfully identifies geometric features and surface thermal profiles of target objects even under vision-limited conditions. This study provides a scalable and robust foundation for multimodal tactile perception in advanced robotic manipulation and human–robot interaction.

Overcoming the albumin–bilirubin binding barrier to achieve specific recognition and high-efficiency capture of blood bilirubin remains a major clinical challenge in treating patients with hyperbilirubinemia due to liver failure, cholestasis, or other related conditions. Here, a molecular engineering-assisted functionalization strategy is proposed: programming the coordination environment of nanocrystalline frameworks with monodentate carboxylic acid ligands of varied carbon chain lengths to construct a family of zirconium-based UiO-66 nanoporous frameworks that act as bilirubin-specific molecular capture traps. The experimental results and molecular dynamics simulations confirm that the newly engineered UiO-66 nanoporous framework rapidly enriched albumin-bound bilirubin through short-range van der Waals/electrostatic effects; the internal Zr–μ₃–OH sites then formed directional Zr–pyrrole coordination with the bilirubin tetrapyrrole core, whereas albumin was physically excluded by the narrow apertures of the engineered nanoporous framework (average 7.6 Å), breaking the “albumin barrier” without competitive displacement. Dense intrapore hydrogen-bonding networks and π–π stacking further strengthen bilirubin-specific complexation. The computed adsorption energy (ΔE_ads = – 3.7 eV) indicates spontaneous, diffusion-limited capture. In simulated blood experiments, the newly developed UiO-66 nanoporous framework achieves an ultrahigh bilirubin removal rate of ~ 97.9% with negligible albumin loss. Finally, clinical tests on plasma samples from ten liver failure patients revealed a 251% higher bilirubin removal capacity per unit mass than that of the commercial ion exchange resin (IER) within 3 h, while albumin leakage remained ≤ 2.58% (vs. ≥ 8.53% for commercial IER). This study reveals, for the first time, the advantages and translational prospects of molecularly engineered nanocrystalline frameworks as a clinically viable platform for high-efficiency blood bilirubin removal.

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