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In order to fabricate high performance fiber pseudocapacitors, the trade‐off between high mass loading and high utilization efficiency of pseudocapacitive materials should be carefully addressed. Here, a solution that is to construct a carbon‐based versatile scaffold is reported for loading pseudocapacitive materials on carbonaceous fibers. The scaffold can be easily built by conformally coating commercial...
As novel fluorescent nanomaterials, carbon dots (CDs) exhibit excellent photostability, good biocompatibility, and high quantum yield (QY). Their superior properties make them promising candidates for biomedical assays and therapy. Among them, the red‐emission (>600 nm) CDs have attracted increasing attention in the past years due to their little damage to the biological matrix, deep tissue penetration,...
For sp2 or sp3 carbon material growth, it is important to investigate the precursors or intermediates just before growth. In this study, the density of ethylene (C2H4) outside the plasma discharge space and just before reaching the carbon nanotube (CNT) growth region is investigated by vacuum ultraviolet absorption spectroscopy for plasma discharge in an antenna‐type remote plasma chemical vapor deposition...
Boron‐doped diamond‐based electrochemical advanced oxidation processes (BDD‐EAOPs) have attracted much attention. However, few systematic studies concerning the radical mechanism in BDD‐EAOPs have been published. In situ electron paramagnetic resonance spectrometry is used to confirm that SO4•− is directly electrogenerated from SO42−. Then, excess SO4•− dimerizes to form S2O82− and accumulates in...
In article number 1901930, Li Zhao, Naoki Komatsu, and co‐workers functionalize nanodiamonds with polyglycerol and cyanine dye, effectively shielding protein adsorption in the blood stream, and prolonging in vivo circulation significantly. As a result, only the tumor is clearly imaged by near‐infrared fluorescence from the nanodiamonds due to their preferential accumulation in tumor rather than the...
Endohedral metallofullerenes exhibit combined properties from carbon cages as well as internal metal moieties and have great potential in a wide range of applications as molecule materials. Along with the breakthrough of mass production of metallofullerenes, their applied research has been greatly developed with more and more new functions and practical applications. For gadolinium metallofullerenes,...
A reliable method to prepare a surface‐enhanced Raman scattering (SERS) active substrate is developed herein, by electrodeposition of gold nanoparticles (Au NPs) on defect‐engineered, large area chemical vapour deposition graphene (GR). A plasma treatment strategy is used in order to engineer the structural defects on the basal plane of large area single‐layer graphene. This defect‐engineered Au functionalized...
High‐performance supercapacitors (SCs) are important energy storage components for emerging wearable electronics. Rendering low‐temperature foldability to SCs is critically important when wearable devices are used in a cold environment. However, currently reported foldable SCs do not have a stable electrochemical performance at subzero temperatures, while those that are performing are not foldable...
Scanning probe microscopy techniques providing information on conductivity, chemical fluxes, and interfacial reactivity synchronized with topographical information have gained importance within the last decades. Herein, a novel colloidal atomic force microscopy (AFM) probe is presented using a spherical boron‐doped diamond (BDD) electrode attached and electrically connected to a modified silicon nitride...
Mitochondria are believed to be the major source of intracellular reactive oxygen species (ROS). However, in situ, real‐time and quantitative monitoring of ROS release from mitochondria that are present in their cytosolic environment remains a great challenge. In this work, a platinized SiC@C nanowire electrode is placed into a single cell for in situ detection of ROS signals from intracellular mitochondria,...
Carbon dots (C‐dots) are generally separated into graphene quantum dots (GQDs) and carbon nanodots (CNDs) based on their respective top‐down and bottom‐up preparation processes. However, GQDs can be prepared by carbonization of small‐molecule precursors as revealed with unconventional preparation strategies. Thus, it is their structures rather than their precursors and preparation strategy that govern...
Fabrication of high‐performance surface‐enhanced Raman scattering (SERS) biosensors relies on the coordination of SERS substrates and sensing strategies. Herein, a SERS active AuCu alloy with a starfish‐like structure is prepared using a surfactant‐free method. By covering the anisotropic AuCu alloy with graphene oxide (GO), enhanced SERS activity is obtained owing to graphene‐enhanced Raman scattering...
Carbon dots (CDs) have attracted increasing attention in disease therapy owing to their low toxicity and good biocompatibility. Their therapeutic effect strongly depends on the CDs structure (e.g., size or functional groups). However, the impact of CDs chirality on maltase and blood glucose level has not yet been fully emphasized and studied. Moreover, in previous reports, chiral CDs with targeted...
A simple wet ball‐milling method for exfoliating pristine graphite to graphene nanosheets is proposed. The surfactant of cetyltrimethyl ammonium bromide is utilized to greatly improve the exfoliation efficiency of graphene nanosheets. Variation of the ball‐milling time is an efficient way to control the size and thickness of graphene nanosheets, as well as the level of edge defects. With an increase...
Single‐atom catalysts are becoming a hot research topic owing to their unique characteristics of maximum specific activity and atomic utilization. Herein, a new single‐atom nanozyme (SAN) based on single Fe atoms anchored on N‐doped carbons supported on carbon nanotube (CNT/FeNC) is proposed. The CNT/FeNC with robust atomic Fe–Nx moieties is synthesised, showing superior peroxidase‐like activity...
Hydrogen is regarded as the most promising green clean energy in the 21st century. Developing the highly efficient and low‐cost electrocatalysts for oxygen evolution reaction (OER) is of great concern for the hydrogen industry. In the water electrolyzed reaction, the overpotential and the kinetics are the main hurdles for OER. Therefore, an efficient and durable oxygen evolution reaction electrocatalyst...
Electrochemical energy storage (EES) devices have attracted immense research interests as an effective technology for utilizing renewable energy. 1D carbon‐based nanostructures are recognized as highly promising materials for EES application, combining the advantages of functional 1D nanostructures and carbon nanomaterials. Here, the recent advances of 1D carbon‐based nanomaterials for electrochemical...
The field of fluorescent nanodiamonds (FNDs) has advanced greatly over the past few years. Though historically limited primarily to red fluorescence, the wavelengths available for nanodiamonds have increased due to continuous technical advancement. This Review summarizes the strides made in the synthesis, functionalization, and application of FNDs to bioimaging. Highlights range from super‐resolution...
In article number 1901517, Zhaohui Li, Ying Wang, and co‐workers report a kind of mitochondria tracking carbon dots with intrinsic mitochondrial imaging capability and tunable long‐wavelength fluorescence from green to red. These carbon dots are precisely synthesized via a retrosynthesis method and are suitable for long‐term imaging of mitochondria in living cells.
Boron‐doped diamond is perfect for efficient and sustainable oxidation of pollutants with aid of electrochemically generated radicals. In article number 1900153, Penghui Shi, Guohua Zhao, and co‐workers provide theoretical and experimental evidence of in‐situ generation of SO4•− radicals as well as their oxidation mechanism of pollutants on boron‐doped diamond surfaces.
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