2 nm thin gold nanowires (AuNWs) have extremely high aspect ratio (≈10 000) and are nanoscale soft building blocks; this is different from conventional silver (AgNWs), which more rigid. Here, highly sensitive, stretchable, patchable, transparent strain sensors fabricated based on the hybrid films of soft/hard networks. They mechanically optically transparent, electrically conductive using a simple cost‐effective solution process. The combination rigid enables their use as high‐performance...

Development of high-performance fiber-shaped wearable sensors is great significance for next-generation smart textiles real-time and out-of-clinic health monitoring. The previous focus has been mainly on monitoring physical parameters such as pressure strains associated with human activities. an enzyme-based non-invasive electrochemical sensor to monitor biochemical vital signs the glucose level in sweat attracted increasing attention recently, due unmet clinical needs diabetic patients. To...

Stretchable electronics may enable electronic components to be part of our organs-ideal for future wearable/implantable biodiagnostic systems. One key challenges is failure the soft/rigid material interface due mismatching Young's moduli, which limits stretchability and durability current Here, we show that standing enokitake-like gold-nanowire-based films chemically bonded an elastomer can stretched up 900% are highly durable, with >93% conductivity recovery even after 2000...

Abstract An ideal wearable/implantable bio‐diagnostics can be powered by second skin‐like energy devices in that they offer advantages such as conformal attachment/integration, lightweightness, and moduli‐matching properties. Past several years have witnessed encouraging progresses soft stretchable supercapacitors various material combinations design strategies; however, it remains nontrivial to achieve highly flexible high‐performance a skin‐thin layout yet with multifunctionality. Here,...

Traditional electrochemical biosensing electrodes (e.g., gold disk, glassy carbon electrode, etc.) can undergo sophisticated design to detect chemicals/biologicals from cells. However, such are typically rigid and nonstretchable, rendering it challenging cellular activities in real-time situ when cells mechanically deformed states. Here, we report a new stretchable cell-sensing platform based on vertically aligned nanowires embedded PDMS (v-AuNWs/PDMS). Using H2O2 as model analyte, show that...

Percolation networks of one-dimensional (1D) building blocks (e.g., metallic nanowires or carbon nanotubes) represent the mainstream strategy to fabricate stretchable conductors. One inherent limitations is control over junction resistance between 1D in natural and strained states Herein, we report highly transparent strain-insensitive conductors using fractal gold (F–Au) nanoframework based on a one-pot templateless wet chemistry synthesis method. The monolayered F–Au (∼20 nm thickness) can...

Abstract Stretchable fiber conductors are appealing in the field of soft electronics due to their potential be woven into fabrics leading smart textile electronics. Coating highly conductive metal films onto elastic polymer fibers can a strategy, however, it is nontrivial achieve strong metal/polymer adhesion avoid interfacial failure under large mechanical strains. Here, novel moss‐inspired gold‐coating strategy by using an ultrathin gold nanowires (AuNWs)‐seeded electroless deposition...

The increasing need for intimate contact between electronics and the human skin requires development of devices that can conform adapt to skin. Compared metallic/carbon/polymeric materials, metal-oxide show multi-stimuli sensory capabilities advanced performance. Combining performance versatility with flexible stretchable polymeric substrates could create an array next-generation devices, which are highly functional various applications. This review covers design principles fabrication...

A new stretchable tactile electronic skin sensor that could sense touch, location and sharpness is presented.

Free-standing gold trisoctahedron superlattice nanosheet is successfully fabricated, characterized, which can serve as a novel immunosensor.

Droplets suspended by acoustic levitation provide genuine substrate-free environments for understanding unconventional fluid dynamics, evaporation kinetics, and chemical reactions circumventing solid surface boundary effects. Using a fully levitated air-water interface in conjunction with drying-mediated nanoparticle self-assembly, here, we demonstrate general approach to fabricating free-standing nanoassemblies, which can totally avoid effects during the entire process. This strategy has no...

The ability of developing highly durable fiber-shaped electronic devices is crucial for next-generation smart textile electronics. Past several years have witnessed encouraging progress made in stretchable supercapacitors using carbon materials, transition metal oxides, and conducting polymers. Here, we report a dry-spun strategy to produce scalable ultrathin gold nanowire-based fibers, which can lead fiber-based double-helix winding design. Hildebrand's Hansen's solubility parameters...

Abstract 2D freestanding nanocrystal superlattices represent a new class of advanced metamaterials in that they can integrate mechanical flexibility with novel optical, electrical, plasmonic, and magnetic properties into one multifunctional system. The reported to date are typically constructed from symmetrical constituent building blocks, which have identical structural functional on both sides. Here, general ligand symmetry‐breaking strategy is grow Janus gold superlattice sheets nanocube...

Supercapacitors with high areal capacitance, mechanical stretchability, and optical transparency are achieved simultaneously using novel self-assembled gold nanorime mesh structures.

The electronic, optical, thermal, and magnetic properties of an extrinsic bulk semiconductor can be finely tuned by adjusting its dopant concentration. Here, it is demonstrated that such a doping concept extended to plasmonic nanomaterials. Using two-dimensional (2D) assemblies Au@Ag Au nanocubes (NCs) as model system, detailed experimental theoretical studies are carried out, which reveal collective n/p-doping-like properties. A threshold concentration NCs observed, below p-doping dominates...

Abstract An ideal epidermal supercapacitor should be ultrathin, highly stretchable, and skin‐attachable yet able to function under dynamic deformation states. Past several years have witnessed encouraging progress in stretchable supercapacitors but it remains challenging achieve an that can meet all the aforementioned criteria. Here, we report entire solution‐based strategy fabricate such kind of based on enokitake‐like vertically aligned gold nanowires (v‐AuNWs) conjunction with...

Thiol-polystyrene (SH-PS)-capped plasmonic nanoparticles can be fabricated into free-standing, one-nanoparticle-thick superlattice sheets (termed plasmene) based on physical entanglement between ligands, which, however, suffer from irreversible dissociation in organic solvents. To address this issue, we introduce coumarin-based photo-cross-linkable moieties to the SH-PS ligands stabilize gold nanoparticles. Once cross-linked, obtained plasmene nanosheets consisting of chemically locked well...

A plasmonic skin has been demonstrated with an elastomer-supported, highly ordered, and closely packed nanocrystal array (plasmene).

Abstract Chronic kidney disease (CKD) has asymptomatic early stages, whereby detection is crucial to prevent its complications and progression. Creatinine cystatin C (cysC) assays are known for assessing function but there limited point‐of‐care diagnostics which rapid, precise, easy use. Here, high resistivity silicon conductometric sensors of creatinine cysC with a 10 min sample incubation introduced. The provide resistance‐based signals that can be quantified measured wirelessly....

Under aggregation-free conditions, linear relationships between longitudinal plasmonic peak intensity and temperature have been revealed for poly(<italic>N</italic>-isopropylacrylamide)-capped gold nanorods nanobipyramids.

Understanding the structure and chemical composition at liquid–nanoparticle (NP) interface is crucial for a wide range of physical, chemical, biological processes. In this study, direct imaging liquid–NP by atom probe tomography (APT) reported first time, which reveals distributions interactions key atoms molecules in critical domain. The APT specimen prepared controlled graphene encapsulation solution containing nanoparticles on metal tip, with an end radius 50 nm to allow field...

Self-assembly of nanoparticles represents a simple yet efficient route to synthesize designer materials with unusual properties. However, the previous assembled structures whether by surfactants, polymer, or DNA ligands are "static" "frozen" building block structures. Here, we report growth transformable self-assembled nanosheets which could enable reversible switching between two types and even evolving into diverse third generation nanosheet without losing pristine periodicity. Such in...