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Electronic skins (e‐skins) have the potential to be conformally integrated with human body to revolutionize wearable electronics for a myriad of technical applications including healthcare, soft robotics, and the internet of things, to name a few. One of the challenges preventing the current proof of concept translating to real‐world applications is the device durability, in which the strong adhesion...
Barcode particles have a demonstrated value for multiplexed high‐throughput bioassays. Here, a novel photonic crystal (PhC) barcode is presented that consists of hollow colloidal nanospheres assembled through microfluidic droplet templates. Due to their gas‐filled core, the resultant barcode particles not only show increased refractive index contrast, but also remain in suspension by adjusting the...
Free‐standing paper‐like thin‐film electrodes have great potential to boost next‐generation power sources with highly flexible, ultrathin, and lightweight requirements. In this work, silver‐quantum‐dot‐ (2–5 nm) modified transition metal oxide (including MoO3 and MnO2) paper‐like electrodes are developed for energy storage applications. Benefitting from the ohmic contact at the interfaces between...
Fast and highly efficient enrichment and separation of glycoproteins is essential in many biological applications, but the lack of materials with high capture capacity, fast, and efficient enrichment/separation makes it a challenge. Here, a temperature‐responsive core cross‐linked star (CCS) polymer with boronate affinity is reported for fast and efficient enriching and separating of glycoproteins...
Functionalized superparamagnetic iron oxide nanoparticles (SPIONs) have emerged as potential clinical tools for cancer theranostics. Membrane‐bound 70 kDa heat shock protein (mHsp70) is ubiquitously expressed on the cell membrane of various tumor types but not normal cells and therefore provides a tumor‐specific target. The serine protease granzyme B (GrB) that is produced as an effector molecule...
In article number 1804171, Xiang Yang Liu and co‐workers investigate the self‐collimation effect on fluorescence emission, and the design of a silk fluorescence collimator is applied to a humidity sensor and dye‐sensitized solar cells. This method of complete control of fluorescence emission by introducing mesoscopic ordered structures and its potential applications may significantly broaden the utility...
The image is an artistic depiction of the two structural states (helical and elongated) achieved by manipulation at the pendant groups of the poly(phenylacetylene) described in article number 1805413 by Ricardo Riguera, Félix Freire, and co‐workers, and which, after appropriate external stimuli, behaves like a colorimetric sensor that also generates controlled organogels and nanoparticles. Cover by...
Interconversion between extended and bent structures at the pendant groups of a chiral polyene framework [poly(phenylacetylene) with (R)‐(2‐methoxy‐2‐phenylacetyl)glycine residues linked to 4‐vinylanilines] allows the reversible colorimetric transformation from stretched to compressed helical cis‐transoid polyenic structures through manipulation of the flexible spacer. This transformation generates...
Metal–organic framework (MOF) composites have recently been considered as promising precursors to derive advanced metal/carbon‐based materials for various energy‐related applications. Here, a dual‐MOF‐assisted pyrolysis approach is developed to synthesize Co–Fe alloy@N‐doped carbon hollow spheres. Novel core–shell architectures consisting of polystyrene cores and Co‐based MOF composite shells encapsulated...
Graphyne (GY) is a new type of carbon allotrope, which is viewed as a rapidly rising star in the carbon family referred to as 2D carbon allotropes due to its extraordinary properties. Considering the dynamic nature of the alkyne metathesis reaction, a hydrogen‐substituted graphyne (HsGY) film is successfully synthesized on a gas/liquid interface using 1,3,5‐tripynylbenzene (TPB) as the precursor....
Developing anodic oxygen evolution reaction (OER) electrocatalysts with high catalytic activities is of great importance for effective water splitting. Compared with the water‐oxidation electrocatalysts that are commonly utilized in alkaline conditions, the ones operating efficiently under neutral or near neutral conditions are more environmentally friendly with less corrosion issues. This review...
With ever‐growing technological demands in the imaging sensor industry for autonomous driving and augmented reality, developing sensors that can satisfy not only image resolution but also the response speed becomes more challenging. Herein, the focus is on developing a high‐speed photosensor capable of obtaining high‐resolution, high‐speed imaging with colloidal quantum dots (QDs) as the photosensitive...
Dual functional activity by the same organic–inorganic hybrid material toward selective metal ion detection and its adsorption has drawn more attraction in the field of sensing. However, most of the hybrid materials in the literature are either for sensing studies or adsorption studies. In this manuscript, a fluorescent active hybrid material SiO2@PBATPA is synthesized by covalent coupling of anthracene‐based...
An all‐carbon pressure sensor is designed and fabricated based on reduced graphene oxide (rGO) nanomaterials. By sandwiching one layer of superelastic rGO aerogel between two freestanding high‐conductive rGO thin papers, the sensor works based on the contact resistance at the aerogel–paper interfaces, getting rid of the alien materials such as polymers and metals adopted in traditional sensors. Without...
Ultrathin flexible electronic devices have been attracting substantial attention for biomonitoring, display, wireless communication, and many other ubiquitous applications. In this article, organic robust redox‐active polymer/carbon nanotube hybrid nanosheets with thickness of just 100 nm are reported as power sources for ultrathin devices conformable to skin. Regardless of the extreme thinness of...
Transition metal/carbon‐based composite materials have been considered as promising electrocatalysts for the oxygen reduction reaction (ORR). In article number 1805324, Bu Yuan Guan, Xiong Wen (David) Lou, and co‐workers report a dual‐metal–organic framework‐assisted pyrolysis strategy to synthesize cobalt‐iron alloy/N‐doped carbon hollow spheres. Benefiting from the abundant bimetallic active sites...
In article number 1805296, Kenichi Oyaizu, Hiroyuki Nishide, and co‐workers report 100 nmthick, organic robust redox‐active polymer/carbon nanotube hybrid nanosheets as rechargeable power sources. The use of the mechanically robust yet intrinsically soft nanosheets enable the fabrication of organic polymer‐based batteries with only 1 μm thickness and stretchable properties. The devices are highly...
Serious side effects to surrounding normal tissues and unsatisfactory therapeutic efficacy hamper the further clinic applications of conventional cancer‐therapeutic strategies, such as chemotherapy and surgery. The fast development of nanotechnology provides unprecedented superiorities for cancer therapeutics. Externally activatable therapeutic modalities mediated by nanomaterials, relying on highly...
This work examines the self‐collimation effect of silk materials on fluorescence emission/detection. A macroscopic regulation strategy, coupled with meso‐reconstruction and meso‐functionalization, is adopted to amplify the fluorescence emission of organic fluorescent dyes (i.e., Rhodamine 6G (R6G)) using silk photonic crystal (PC) films. The fluorescence emission can be linearly enhanced or inhibited...
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