ACS Applied Energy Materials
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2023
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IF 6.4
Jundong Zhu,Songjiu Han,Qirui Wu,Jiayu Zhang,Anbang Chen,Bing Huang,Jianren Huang,Lunhui Guan
The advantages of stretchable supercapacitors (SCs), such as fast charging and discharging speed, high power density, and long cycle life, have attracted the research interest of many researchers. However, conventional SCs have limited applications in energy storage devices due to their unsatisfactory environmental tolerance, easy detachment of electrodes and electrolytes, and poor stretchability. In this work, a poly(vinyl alcohol) (PVA)–(acrylic acid) (AA) double-network hydrogel electrolyte was prepared by a one-pot method, followed by in situ polymerization of aniline (PANI) to fabricate all-in-one polyaniline SCs (PANI-SCs) devices. Multiple hydrogen bonds and in situ polymerization of PANI and dimethyl sulfoxide (DMSO) endow the PANI-SCs integrated, flexible SCs with good mechanical properties and electrochemical performance in a wide temperature range. The PANI-SCs device exhibits an excellent tensile elongation strain of 413.7% and a mechanical strength of 137.1 kPa. At room temperature, the areal capacitance of the PANI-SCs device is 48.1 mF cm–2. PANI-SCs contains a DMSO component; DMSO lowers the saturated vapor pressure of water to lower its freezing point and suppress the formation of ice crystallites and exhibits normal electrochemical performance over a wide temperature range of −80 to 100 °C. PANI-SCs drive LED lights and integrate with sensors for human health monitoring applications. Potential applications extend the development of flexible SCs in wearable electronics.
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Journal of Functional Biomaterials
·
2023
·Vol. 14
·期 4
·185
·
IF 4.8
Yinglong Zhang,Jiajing Tang,Wei Fang,Qing Zhao,Xiaoyu Lei,Jinzheng Zhang,Jieqiong Chen,Yubao Li,Yi Zuo
Processibility and biodegradability of conductive polymers are major concerns when they are applied to tissue regeneration. This study synthesizes dissolvable and conductive aniline trimer-based polyurethane copolymers (DCPU) and processes them into scaffolds by using electrospinning with different patterns (random, oriented, and latticed). The effects of topographic cue changes on electrical signal transmission and further regulation of cell behaviors concerning bone tissue are researched. Results show that DCPU fibrous scaffolds possessed good hydrophilicity, swelling capacity, elasticity, and fast biodegradability in enzymatic liquid. In addition, the conductivity and efficiency of electrical signal transmission can be tuned by changing the surface’s topological structure. Among them, oriented DCPU scaffolds (DCPU-O) showed the best conductivity with the lowest ionic resistance value. Furthermore, the viability and proliferation results of bone mesenchymal stem cells (BMSCs) demonstrate a significant increase on three DCPU scaffolds compared to AT-free scaffolds (DPU-R). Especially, DCPU-O scaffolds exhibit superior abilities to promote cell proliferation because of their unique surface topography and excellent electroactivity. Concurrently, the DCPU-O scaffolds can synergistically promote osteogenic differentiation in terms of osteogenic differentiation and gene expression levels when combined with electrical stimulation. Together, these results suggest a promising use of DCPU-O fibrous scaffolds in the application of tissue regeneration.Keywords:oligoaniline;conductive polyurethane;fibrous scaffolds;electrical and topographical cues;tissue regeneration
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FOOD CHEMISTRY
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2023
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IF 8.8
Shuang Han,Ruonan Sun,Le Zhao,Chen Yan,Hongtao Chu
Olaquindox (OLA) in food from its illegal use possesses great harmful effects on humans, making it important to develop sensitive, inexpensive, and convenient methods for OLA detection. This study innovatively presented a molecularly imprinted electrochemical sensor based on the synergistic effects of nitrogen-doped graphene quantum dots ( N -GQDs) and a nickel-based metal–organic framework functionalized with silver nanoparticles (Ag/Ni-MOF) for OLA detection. N -GQDs and Ag/Ni-MOF with unique honeycomb structures were sequentially modified on the glassy carbon electrode (GCE) surface to accelerate the electron transfer rate and increase the available region of the electrode. Molecularly imprinted polymers were further grown on the Ag/Ni-MOF/ N -GQDs/GCE by electropolymerization to significantly enhance the selective recognition of OLA. The constructed sensor showed excellent performance for selective OLA determination, with a wide linear range (5–600 nmol·L -1 ) and exceedingly low detection limit (2.2 nmol·L -1 ). The sensor was successfully applied to detect OLA in animal-origin food with satisfactory recoveries (96.22–101.02%).
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ACS Sustainable Chemistry & Engineering
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2023
·
IF 8.4
Zihao Guo,Tian Li,Tanlin Chen,Dandan Zhi,Yingrui Tian,Chaozhe Hao,Baozhu Wang,Ximei Wen,Fanbin Meng
Detecting and repairing coating damages at nanoscale or microscale are essential for metal corrosion protection. Here, we develop a smart anticorrosion coating with autonomous self-reporting and self-healing abilities by saline-responsive triggered polyaniline (PANi) nanocapsules containing a fluorescein isothiocyanate (FITC) fluorescent indicator and benzotriazidazole (BTA) corrosion inhibitor. Once the damaged coating is wet with the salt solution, the sodium ions penetrate the crack and react with PANi, causing a gating effect of PANi nanocapsules to be triggered and opened. This leads to the diffusion of molecules and expelling of the guest payload from the capsule mesopores. Therefore, the scratched FITC@PANi/Epoxy coatings express pronounced green fluorescence signals under UV light irradiation within only 30 min, highlighting the coating failure. Meanwhile, the microcracks can be promptly repaired with the BTA@PANi/Epoxy coatings, and their long-term anticorrosion properties are further extended under a NaCl solution, indicating the prolonged service lives of the coatings. Therefore, the salt-responsive release strategy with self-reporting and self-healing functions allows for timely corrosion warning, fast crack repair, and effective extension of barrier performance, which is appealing and of great importance in practical applications.
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ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Chonghui Zhu,Yu Bing,Qidai Chen,Bo Pang,Juan Li,Tong Zhang
Nutritional status monitoring plays an important role in the maintenance of human health and disease prevention. Monitoring the intake of vitamins can support the improvement of diet behavior. In this work, a polyaniline (PANI) film-based nonenzymatic electrochemical sensor was prepared to track the vitamin C level in sweat. The PANI film was modified with organic acids (ethylformic acid, malic acid, tartaric acid, and phytic acid). The phytic acid-modified PANI film based on sensor has a wide detection range (0.5–500 μmol·L–1), high sensitivity (665.5 and 326.2 μA·(mmol·L–1)−1·cm–2), and low detection limit (0.17 μmol·L–1) toward vitamin C in sweat. The phytate enhances the band transport between PANI chains, which increases the electrical conductivity of the film to improve the electrochemical properties of the sensor. In addition, we monitored changes of vitamin C levels in human body after taking vitamin C pills by detecting sweat or saliva. The ability to track the pharmacological profile demonstrates the potential of PANI film-based sensors for applications in personalized nutritional intake and tracking. And a simple and portable vitamin C detection system was developed to improve the practicability of the sensor. This work provides an idea for the application of wearable electrochemical sensing devices in nutrition guidance.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2023
·
IF 9.9
Ningning Zhao,Youtuo Zhang,Zekun Zhang,Chao Han,Yuyan Liang,Jintao Li,Xiaolei Wang,Lei Dai,Ling Wang,Zhangxing He
Aqueous zinc-ion batteries (AZIBs) have received increasing attention as a promising energy storage device. However, it was rarely reported that the separators as a synergistic medium stabilize the cathode and anode materials. Herein, a polyaniline functionalized glass fiber separator (PANI-GF) was synthesized in situ . The porous structure of PANI effectively regulated the flux of zinc ions inside the separator and its deposition behavior through ion confinement. The abundant N -containing functional groups can adsorb water molecules and effectively reduce harmful side reactions. Moreover, the PANI-GF separator adjusted pH to inhibit dissolution of the cathode by protonation. Importantly, based on the synergistic separator, the Zn-MnO 2 full cell exhibited more than twice discharge capacity compared to the conventional cell after 1000 cycles at 2 A g −1 . This study provided in-depth insight into the design of convenient, reliable, cost-effective, and synergistic separators for AZIBs.
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MOLECULES
·
2023
·Vol. 28
·期 6
·2810
·
IF 4.6
Chang Liu,Shang Li
We developed an integrated gas diffusion layer (GDL) for proton exchange membrane (PEM) fuel cells by growing carbon nanofibers (CNFs) in situ on carbon paper via the electro-polymerization of polyaniline (PANI) on carbon paper followed by a subsequent carbonization treatment process. The CNF/carbon paper showed a microporous structure and a significantly increased pore volume compared to commercial carbon paper. By utilizing this CNF/carbon paper in a PEM fuel cell, it was found that the cell with CNF/carbon paper had superior performance compared to the commercial GDL at both high and low humidity conditions, and its power density was as high as 1.21 W cm−2at 100% relative humidity, which is 26% higher than that of a conventional gas diffusion layer (0.9 W cm−2). The significant performance enhancement was attributed to a higher pore volume and porosity of the CNF/carbon paper, which improved gas diffusion in the GDL. In addition, the superior performance of the cell with CNF/carbon paper at low relative humidity demonstrated that it had better water retention than the commercial GDL. This study provides a novel and facile method for the surface modification of GDLs to improve the performance of PEM fuel cells. The CNF/carbon paper with a microporous structure has suitable hydrophobicity and lower through-plane resistance, which makes it promising as an advanced substrate for GDLs in fuel cell applications.
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ACS Catalysis
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2023
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IF 12.9
Song Wang,Xiewen Wu,Jing Fang,Feng Zhang,Yanli Liu,Hongbo Liu,Yu He,Min Luo,Run Li
The design of a highly efficient polymer photocatalyst is an essential prerequisite for photo-biocatalysis in a polymer–enzyme coupled system, which offers an important platform for the synthesis of pharmaceuticals and fine chemicals. However, current polymers still suffer drawbacks of poor water wettability, low visible light absorption, and high recombination rate of photoinduced electron/hole pairs, which severely limit their application in photo-biocatalysis. Herein, we demonstrate a polymer/polymer double-shell hollow nanostructure (PCN@PDBTS-HN) via a facile two-step polymerization with polymeric carbon nitride (PCN) and poly-dibenzothiophene sulfone (PDBTS) as internal and external shells, respectively. The covalent connection of those two polymer layers ensures the spontaneous electron transfer from PDBTS to PCN, as reflected in X-ray photoelectron spectroscopy (XPS), electron paramagnetic resonance (EPR), and fluorescence spectra, which could effectively accelerate the charge separation and migration. Thanks to its improved light-harvesting, increased hydrophilicity, and enhanced redox capacity, the obtained PCN@PDBTS-HN demonstrates an excellent catalytic efficiency in visible-light-promoted NADH regeneration with a conversion of 85.4% being achieved in 40 min (turnover frequency of 0.859 mmol g–1 h–1). This value is 1.4 and 2.6 times higher than that of pristine PCN and PDBTS, respectively, indicating an essential role of Z-scheme heterojunction in improving the catalytic efficiency. In addition, PCN@PDBTS-HN also displays excellent photocatalytic selectivity for 1,4-NADH regeneration, remarkable photostability, and good biocompatibility. A total amount of 2.12 mM methanol and 8.39 mM l-glutamate was accumulated in the polymer/alcohol dehydrogenase (YADH) and polymer/glutamate dehydrogenase (GDH) coupled system, respectively, implying high flexibility of fine chemical production via the photo-biocatalytic approach.
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Biomaterials Research
·
2023
·Vol. 27
·期 1
·1-17
·
IF 11.3
Huang Xueyan,Chen Fei,Ma Yeshuo,Zheng Fan,Fang Yanpeng,Feng Bin,Huang Shuai,Zeng Hongliang,Zeng Wenbin
Background Macroautophagy is an essential cellular self-protection mechanism, and defective autophagy has been considered to contribute to a variety of diseases. During the process, cytoplasmic components are transported via autophagosomes to acidic lysosomes for metabolism and recycling, which represents application niches for lysosome-targeted fluorescent probes. Additionally, in view of the complexity of the autophagy pathway, it entails more stringent requirements for probes suitable for monitoring autophagy. Meanwhile, aggregation-induced emission (AIE) fluorescent probes have been impressively demonstrated in the biomedical field, which bring fascinating possibilities to the autophagy visualization.Methods We reported a generalizable de novo design of a novel pH-sensitive AIE probe ASMP-AP tailored to lysosome targeting for the interpretation of autophagy. Firstly, the theoretical calculation was carried out followed by the investigation of optical properties. Then, the performance of ASMP-AP in visualizing autophagy was corroborated by starvation or drugs treatments. Furthermore, the capability of ASMP-AP to monitor autophagy was demonstrated in ex vivo liver tissue and zebrafish in vivo.Results ASMP-AP displays a large stokes shift, great cell permeability and good biocompatibility. More importantly, ASMP-AP enables a good linear response to pH, which derives from the fact that its aggregation state can be manipulated by the acidity. It was successfully applied for imaging autophagy in living cells and was proved capable of monitoring mitophagy. Moreover, this novel molecular tool was validated by ex vivo visualization of activated autophagy in drug-induced liver injury model. Interestingly, it provided a meaningful pharmacological insight that the melanin inhibitor 1-phenyl-2-thiourea (PTU)-induced autophagy was clearly presented in wild-type zebrafish.Conclusion sASMP-AP offers a simple yet effective tool for studying lysosome and autophagy. This is the first instance to visualize autophagy in zebrafish using a small-molecule probe with AIE characters, accurate lysosome targeting and simultaneous pH sensitivity. Ultimately, this novel fluorescent system has great potential for in vivo translation to fuel autophagy research.Graphical Abstract
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COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
·
2023
·
IF 8.7
Ling-Zhi Huang,Meng-Yu Qi,Wei Zhang,Wen-Yan Guo,Ming-Guo Ma
Flexible fabrics have gained widespread attention in thermal management and energy harvesting recently due to their fascinating merits of flexibility and breathability. However, the simple and efficient integration of multiple functions into a single fabric remains a challenge. Herein, a multifunctional fabric was prepared by in-situ polymerized polyaniline (PANI) and polypyrrole (PPy) onto air-laid paper (AP), followed by wrapping with hydrophobic reagent. The synergistic effect of PANI and PPy networks endowed the composite fabric with excellent photothermal performance. Additionally, the smart fabrics exhibited the terrific self-cleaning property. More promisingly, triboelectric nanogenerator (TENG) based on the smart fabrics as effective positive friction material could transform electrical signal with through collecting energy from small human movement, delivering charge of 82.7 nC, open circuit voltage of 213.6 V, and short circuit current of 14.7 μA. This work provides new insights for the study of the next generation lightweight, portable thermal management fabric.
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Frontiers in Microbiology
·
2023
·
IF 5.2
Wang Zhenhui,Li Zhanlin,Niu Chao,Yang Lanping,Zhai Yangyang,Li Dehai,Wu Guangwei,Zhang Zhenzhen,He Xueqian
Introduction and Methods: Silencing gene activation can effectively enrich the diversity of fungal secondary metabolites.Results and Discussion: Cultivation of the Yellow River wetland-derived fungus Talaromyces funiculosus HPU-Y01 with aniline led to the isolation of one new aniline-containing polyketide tanicutone A (1), two new bicyclic polyketides tanicutones B-C (2–3), a new related trienoic acid 8-methyldeca-2,4,6-trienoic acid (5), and a known compound 4. The planar structures and configurations of 1–5 were determined by NMR, MS, and ECD calculations. Compound 2 featured a key aldehyde group and showed promising inhibitory activity against Vibrio parahaemolyticus with a minimum inhibitory concentration (MIC) value of 0.17 μg/mL. This is a rare report of aniline-induced fungal production of tetrahydronaphthone polyketides.
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SENSORS AND ACTUATORS A-PHYSICAL
·
2023
·
IF 4.6
Yifei Gao,Jinyu Sun,Xiaohui Tian,Yizhong Yuan
Flexible strain sensors are one of the core devices in wearable electronics . At present, it is still difficult to develop flexible strain sensors with high stretchability, sensitivity, and long-term stability. In this work, polyaniline (PANI) was coated on the surface of epoxidized natural rubber (ENR) nanospheres to obtain the PANI@ENR nanospheres, and then mechanically blended with graphene (GN) sheets to prepare the GN/PANI@ENR composites. The composite conductive networks composed of PANI and GN endow the composites with excellent mechanical, electromechanical and strain-sensing performances. The strain-sensing tests show that the ENR composites possess an ultra-high gauge factor (GF) of 29671.7 within 270% of strain. Meanwhile the composites exhibit excellent cycling stability of over 2500 cycles. In addition, the GN/PANI@ENR strain sensors can monitor the large-strain (finger, wrist, elbow and knee joints bending) and small-strain (strains of vocal cord vibration, pulse, facial muscle movements) motions of the human body in real time, indicating a wide range of potential applications in wearable flexible electronics.
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