Wound healing is the dynamic tissue regeneration process replacing devitalized and missing layers. With development of photomedicine techniques in wound healing, safe noninvasive photobiomodulation therapy receiving attention. Effective management challenged, however, by limited control geometrical mismatches on injured skin surface. Here, adhesive hyaluronic acid-based gelatin nanofibrous membranes integrated with multiple light-emitting diode (LED) arrays are developed as a skin-attachable...

Multilevel hierarchical platforms that combine nano- and microstructures have been intensively explored to mimic superior properties found in nature. However, unless directly replicated from biological samples, desirable multiscale structures challenging efficiently produce date. Departing conventional wafer-based technology, new efficient techniques suitable for fabricating bioinspired are highly desired three-dimensional architectures even on nonplanar substrates. Here, we report a facile...

Abstract Triboelectric nanogenerators (TENGs) are put forward as a state‐of‐the‐art energy‐scavenging technology for self‐powered electronics, but their severe wear and degradation driven by inevitable friction can pose significant durability sustainability concerns. Here, an array of microfibers is reported that functions robust sustainable TENG in both in‐plane sliding vertical contact‐separation modes, with excellent electrical potential high 20 V cyclability 3000. The design flexibility...

Photobiomodulation (PBM) has received attention due to its potential for improving tissue function and enhancing regeneration in stroke. A lightweight, compact, simple system of miniaturized electronic devices consisting packaged light-emitting diodes (LEDs) that incorporates a flexible substrate vivo brain PBM mouse model is developed. Using this device platform, the preventive therapeutic effects affixed exposed skull mice photothrombosis middle cerebral artery occlusion stroke are...

The conversion of graphene oxide (GO) into reduced (rGO) is imperative for the electronic device applications graphene-based materials. Efficient and cost-effective fabrication highly uniform GO films successive reduction rGO on a large area still cumbersome task through conventional protocols. Improved film casting sheets polymeric substrate with quick green processes has potential that may establish path to practical flexible electronics. Herein, we report facile deposition process polymer...

Abstract The ability to measure changes in neural activities using devices implanted the brain can be useful for recording signals assess specific risk factors, monitor development of diseases, and expand understanding circuitry. Here, a neuroimplantable interface is introduced that integrates biomaterials with an advanced structural design facilitate monitoring electrophysiological responses widespread regions. uses biocompatible photopatternable materials create ultrathin, homogeneous...

Decoding algorithm–based approaches emerge as transformative technologies for artificial sensory systems, transcending traditional methods and enabling robust versatile applications. Herein, the development of an electronic skin (e‐skin) that integrates multifunctional tactile sensing capabilities, including dynamic pressure continuous sliding touch detection, along with human–robot interface is reported. To address limitations early works on multifunctionality in strain sensors based...

The work presented here introduces a facile strategy for the development of flexible and stretchable electrodes that harness robust characteristics carbon nanomaterials through laser processing techniques on liquid crystal polymer (LCP) film. By utilizing LCP film as biocompatible electronic substrate, control is demonstrated over irradiation parameters to achieve efficient pattern generation transfer printing processes, thereby yielding highly conductive laser-induced graphene (LIG)...

Molecularly imprinted polymers (MIPs) have garnered significant attention as a promising material for engineering specific biological receptors with superior chemical complementarity to target molecules. In this study, we present an electrochemical biosensing platform incorporating MIP films the selective detection of interleukin-1β (IL-1β) biomarker, particularly suitable mobile point-of-care testing (POCT) applications. The IL-1β-imprinted biosensors were composed poly(eriochrome black T...

Abstract As a new concept in materials design, variety of strategies have been developed to fabricate optical microlens arrays (MLAs) that enable the miniaturization systems on micro/nanoscale improve their characteristic performance with unique functionality. In this paper, we introduce cost-effective and facile fabrication process large scale up ~15 inches via sequential lithographic methods produce thin deformable hexagonally arranged MLAs consisting polydimethylsiloxane (PDMS). Simple...

Broad-band analog and digital reflection-type phase shifters (RTPSs), showing constant shift over 1:3 bandwidth, have been developed using microelectromechanical systems (MEMS) technology. Two-unit RTPSs centered at two different frequencies cascaded to achieve flat responses a wide frequency band. Each shifter uses air-gap overlay coplanar-waveguide couplers for low-loss 3-dB coupling bridge-type MEMS capacitors reflective terminations. The fabricated shows the average insertion loss of 3.5...

Optical gain enhancement of two-dimensional CsPbBr3 nanosheets was studied when the amplified spontaneous emission is guided by a patterned structure polyurethane-acrylate. Given uncertainties and pitfalls in retrieving coefficient from variable stripe length method, contour [Formula: see text] obtained plane spectrum energy (ℏω) (x), whereby an average obtained, saturation analysed. Excitation temperature dependence show that waveguide enhances both thermal stability due to increased...

Rotating cylindrical stamp-based nanoimprint technique has many advantages, including the continuous fabrication of intriguing micro/nanostructures and rapid pattern transfer on a large scale. Despite these previous lithography rarely been used for producing sophisticated nanoscale patterns non-planar substrate that extended applications. Here, simple integration nanoimprinting process with help transparent stamp wrapped roll UV optical source in core to enable high-throughput transfer,...

In this article, we describe a facile method to fabricate MIP patterns in specifically designed microfluidic channels. With design, homogenous and stable films were spatially immobilized inside the patterned PDMS system, fluorescent response was identified by detection of fluorescence-labeled bovine serum albumin (BSA) template. comparison, non-imprinted polymer (NIP) also prepared. From results response, significant binding behaviors BSA molecules into cavities observed due increased...

Third harmonic generation (THG) has proven its value in surface and interface characterization, high-contrast bio-imaging, sub-wavelength light manipulation. Although THG is observed widely general solid liquid substances, when laser pulses are focused at nanometer-level ultra-thin films, the bulk been reported to play dominant role. However, there still third harmonics (TH) generated of thin-films, not inside - so-called TH, whose relative contribution quantitatively revealed date. In this...

An MMIC single-ended mixer with improved intermodulation characteristics has been developed by using a novel approach of combining two FETs different gate width in cascode connection. The fabricated circuit operating at the PCS (personal communication system) frequency band 1.855 GHz shows conversion gain 5 dB an LO power 0 dBm and to RF isolation over 25 condition low consumption (V/sub DD/=3 V, I/sub ds/=5.5 mA). measured 3/sup rd/ order distortion without IF output matching is -44 dBc -20...

Tissue-Interfaced Bioelectrodes In article 2301753, Suck Won Hong, Joonsoo Jeong, Hyun Ho Jung, and co-workers report highly conductive graphene films, engraved on a liquid crystal polymer by fully utilizing the laser scribing technique. The presented approaches involve rapid generation of films in micropatterned arrays large-scale transfer printing processes flexible substrates. These techniques allow preparation kirigami-structured stretchable bioelectrodes designed for on-skin electropads...