Wound
dressings based on nanomaterials play a crucial role in wound
treatment and are widely used in a whole range of medical settings,
from minor to life-threatening tissue injuries. This article presents
an educational review on the accumulating knowledge in this multidisciplinary
area to lay out the challenges and opportunities that lie ahead and
ignite the further and faster development of clinically valuable technologies.
The review analyzes the functional advantages of nanomaterial-based
gauzes and hydrogels as well as hybrid structures thereof. On this
basis, the review presents state-of-the-art advances to transfer the
(semi)blind approaches to the evaluation of a wound state to smart
wound dressings that enable real-time monitoring and diagnostic functions
that could help in wound evaluation during healing. This review explores
the translation of nanomaterial-based wound dressings and related
medical aspects into real-world use. The ongoing challenges and future
opportunities associated with nanomaterial-based wound dressings and
related clinical decisions are presented and reviewed.
Seeing is believing: A direct, selective, and sensitive strategy for colorimetric visualization of cerebral dopamine has been developed for the first time using gold nanoparticles through the design of double molecular recognition (see picture). The simplicity of this method establishes a facile and reliable approach for monitoring cerebral species in brain chemistry, which may be related to physiological and pathological events.
A highly ordered titanium dioxide nanotube arrays (HOTDNA) electrode was prepared in hydrofluoric acid solution by electrochemical anodization technique on a pure titanium sheet. The HOTDNA electrode was characterized by FE-SEM microscopy, X-ray diffraction, and UV-vis spectra. The linear-sweep photovoltammetry response on the HOTDNA electrode is presented in this work. The photogenerated current of 0.3 mA/cm2 was observed significantly upon illumination with applied potential of 0.5 V in the UV regions at the central wavelength of 253.7 nm. Photoelectrocatalytic (PEC) and photocatalytic (PC) activities of the HOTDNA electrode were evaluated in the degradation of methyl orange (MeO) in aqueous solution. A set of optimized conditions such as anodic potential, calcinations temperature, and MeO concentration on the PEC activity was investigated. The PEC and PC activities of HOTDNA electrode were compared. We concluded that the HOTDNA electrode was an effective photoelectrode for achieving an enhanced MeO degradation.
3-Aminobenzeneboronic acid functionalized graphene quantum dots (APBA-GQDs) were synthesized and used as a selective and sensitive sensing system for glucose. Combined with microdialysis, glucose was monitored successfully in vivo in the striatum of rat.
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