This article sorts out the latest research progress in electrospinning technology in energy batteries, biomedicine, sensors, air filtration, etc., recently published in the journal Advanced Functional Materials, for everyone to understand and learn, hoping to bring innovative ideas to your scientific research.
1. Hu Xianluo, Huazhong University of Science and Technology: A single-piece specific functional ion gel electrolyte membrane can achieve high-performance solid-state lithium metal batteries in a wide temperature range
➣ This study demonstrates a block-specific function IGM with high Li+ conductivity and excellent thermal stability, where electrospinned poly (ionic liquid) nanofibers with positive charge can be used as heat-resistant supports for IGEM.
➣ Adjusting the Li+ environment in IGEM enables a transition from slow transport to fast structure lithium ion transport modes.
➣ With the unique IGEM, solid-state Li || The LiFePO4 battery achieves higher magnification performance and good cycle performance over a wide temperature range of 0 to 90 °C.
➣ Practical solid-state Li || with ≈2 mAh cm-2 cathode capacity LiFePO4 soft pack battery has also been implemented.
DOI: 10.1002/adfm.202110653
2. Ding Bin et al. of Donghua University: Electrospinn successfully developed radial nanofiber mesh for wound management
➣ Donghua University Yu Jianyong/Ding Bin/Li Xiaoran and other research teams were inspired by the radial branch structure of the water lily family Wang Lian and proposed a programmable strategy to construct radially assembled nanofiber meshes.
➣ The structure has rapid deployment characteristics, strong anti-rupture bearing capacity, can promote its application in joint trauma caused by limb movement.
➣ Since matrix metalloproteinase MMP-9 triggers GelMA coating degradation, this mesh will be given "on-demand" anti-inflammatory drug delivery in the inflammatory microenvironment, while stromal cell-derived factor (SDF1α) "center-peripheral" gradient changes stimulate MSC recruitment to the lesion site.
DOI: 10.1002/adfm.202109833
3. Liang Kunneng, West China School of Stomatology, Sichuan University: Nanocatalytic membrane for coordinating infection microenvironment activation of rapid sterilization and stagnation of chronic wound regeneration
➣IME activated nanocatalytic membranes consisting of electrospun poly (lactic acid-co-glycolic acid) (PLGA) scaffolds, MXene/Ag2S bioisoconditions (MX/AS bio-HJs), designed and developed lactate oxidase (LOx) for chronic skin regeneration.
➣ In this "smart" system, the PLGA membrane is gradually degraded to lactic acid, and LOx consumes lactic acid in a microenvironmental response to produce a rich hydrogen peroxide (H2O2).
➣ MX/AS bio-hjs in the membrane not only produce good photothermal effects and reactive oxygen species in near-infrared light, but also catalyze the production of H2O2 to replace hydroxyl radicals through Fenton-like reactions (· OH), thus enabling rapid collaborative sterilization.
DOI: 10.1002/adfm.202109469
4. Hong Kong University of Science and Technology Jang-Kyo Kim/Xi Shen: Rational design of fully resistive multifunction sensors with stimuli and distinguishability
➣In this paper, a flexible multifunctional sensor is developed with electrospinn carbon nanofiber (CNF) film as the only sensing material and resistance as the only output signal, which can detect and distinguish small temperature and pressure stimuli simultaneously in real time.
➣By cutting the atomic and device-level structure of the CNF film, the stimulation sensitivity and resolution are coordinated so that it has a pressure and temperature sensitivity of −0.96 kPa −1 and −2.44%°C−1, respectively, and achieves mutually exclusive sensing performance in the absence of signal cross-interference.
➣ Has the ability to simultaneously detect and decouple temperature and pressure irritations as a skin patch that can be used to install devices and flexible game controllers.
DOI: 10.1002/adfm.202107570
5. Ding Bin/Si Yang, Donghua University: Ultra-flexible nanofiber aerogel with layered cage structure to achieve renewable antibacterial air filtration
➣ Ding Bin/Siyang of Donghua University used a bottom-up method to construct cage-like superflex nanofiber aerogels (CSAs) with renewable antibacterial properties by combining electrospinn silica nanofibers, bacterial cellulose nanofibers and hydrophobic Si-O-Si elastic binders.
➣The resulting aerogel has high porosity, hydrophobicity, hyperelasticity, foldability, renewable chlorination capacity (>5400 ppm).
➣ High filtration performance (>99.97%, 189 Pa) and excellent antibacterial and antiviral activity (reduced within 6 log 5 minutes) against PM0.3 enable aerogels to intercept and inactivate pathogenic pollutants in the air.
DOI: 10.1002/adfm.202107223
6. Karen De Clerck, University of Ghent, Belgium: Electrospinning technology designs eco-friendly colorimetric nanofibers
➣The potential of 2-n-butyl-2-oxazolidin (B) and 2-ethyl-2-oxazolidin (E) statistical copolymers as universal support platforms for nanofiber halogen sensor designs was investigated.
➣ Polymers can be electrospinned from environmentally friendly solvent systems, while the wettability, moisture adsorption capacity and water solubility of the membrane can be adjusted by changing the B/E monomer ratio to ensure wide applicability.
➣This colorimetric nanofiber sensor responds reversibly to aqueous solutions of different pH, (hydrochloric acid) acid and alkaline (ammonia) vapors, and several biological amines, with detection limits as low as 5 ppb.
➣ Sensor response rate, sensitivity, and adjustability of pKa through dye-polymer interactions, as determined by the structure and semi-crystallinity of the carrier polymer and the chain length of the ayr-modified polymer.
DOI: 10.1002/adfm.202106859
7. Seminar Agarwal, University of Bayreuth, Germany: Preparation method of flexible, mechanically stable, porous self-supporting covalent organic skeleton microfiber mesh membrane
➣ This article reports for the first time a COF membrane with fibrous form prepared by the newly introduced template-assisted frame process.
➣This method uses electrospinned porous polymer film as a large-size sacrificial template to prepare self-supporting COF membranes.
➣In addition to having a high crystallinity, the porous COF fiber membrane also has a large specific surface area (1153 m2 g−1), good mechanical stability, excellent thermal stability and flexibility.
➣This study provides a simple and easy method for the preparation of large-size COF membranes and their derivatives, and has broad application prospects in the fields of separation, catalysis and energy.
DOI: 10.1002/adfm.202106507
Article link: http://www.espun.cn/News/Detail/48264
Article Source: Yi Si Bang http://www.espun.cn/