Smart Food Packaging In article number 2501808, Sunae So, Junseong Ahn, Jun-Ho Jeong, and co-workers present a stretchable, antimicrobial food wrapper integrated with a nanostructured SERS sensor for real-time, nondestructive quality monitoring. Fabricated via nanoimprint lithography and electrospinning, the Au nanostructure array decorated with Ag nanoparticles generates abundant hotspots. This wrapper detects spoilage and contaminants, inhibits microbial growth, and advances smart food packaging.

Chiral Plasmonic Nanostructures Chiral gold nanocubes (AuNCs) enable polarization-dependent plasmonic catalysis, featuring remarkably strong photochemical circular dichroism. Circularly polarized light drives hot-electron-mediated reactions with asymmetric rates, monitored operando via SERS, with g-factors surpassing optical limits. Multilayer assemblies exhibit reversible and tunable chiroptical responses. In article number 2505093, Ilko Bald and co-workers present a nanostructure-engineering approach to enhance chiral-selective photochemistry through light polarization control.

Sweat Biomarkers In article number 2502655, Farnaz Lorestani, Amir Sheikhi, Huanyu Cheng, and co-workers present a flexible, cost-effective wearable sweat-sensing patch that enables near-real-time detection of biomarkers during low-intensity daily activities. By integrating a granular hydrogel scaffold with a microfluidic device and a highly sensitive LIG-based biosensor, the system enhances sweat uptake and storage at rest, achieving transport rates over ten times higher than those of previous designs and enabling accurate, continuous lactate monitoring.

Chemical Mechanical Polishing In article number 2410586, Jianwei Zhou, Yuhang Qi, and co-workers use the H2O2/PDS/FeIII-NTA system to improve the removal rate and surface quality of Ru under abrasive-free chemical mechanical polishing technology. It shows the working principle of CMP, where atoms on the surface of the Ru escape from the wafer surface under chemical and mechanical action, thereby achieving efficient removal of the material and flattening of the material surface.

Alkaline Seawater Electrolysis Optimizing Fe/Ni ratios, in article number 2410027, Young Sun Mok and co-workers report synthesis of smaller FeNi LDH derived NiFe2O4 nano petals sparsely covered with nano-sized MIL-88A derived Fe2O3 nanospheres. Thermal ammonia reduction introduced oxygen vacancies and nitrogen functionalization, boosting OER and HER activities by lowering activation barriers and destabilizing hydride intermediates. The optimized electrode achieved 200 mA cm−2 at 350 mV (OER) and 240 mV (HER) overpotentials, with 200-hour stability in alkaline seawater, showcasing its potential for sustainable water electrolysis.

Lithium Metal Batteries In article number 2411861, Jimin Shim and co-workers introduce a molecularly engineered artificial solid electrolyte interphase (SEI) with tailored lithiophilicity and solvent-phobicity to address the challenges of lithium metal anodes, including uncontrolled electrodeposition and irregular SEI formation. This study highlights that modulating the molecular characteristics and physical properties of SEIs enables dendrite-free, long-lasting lithium metal batteries.

Cancer Therapy In article number 2411474, Tali Ilovitsh and co-workers combine nanodroplet-mediated ultrasound surgery with checkpoint inhibition to enhance immunotherapy. Systemically injected nanodroplets accumulate in the tumor and are activated into cavitating gas bubbles using ultrasound imaging. Subsequent low-frequency ultrasound implodes the vaporized nanodroplets, inducing tumor fractionation and creating a T-cell–inflamed microenvironment. This approach integrates mechanical disruption with immune activation, addressing key barriers in solid tumor treatment.