Journal of Inorganic and Organometallic Polymers and Materials
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2023
·
IF 4
Zhang Xue-Feng,Chang Tian-Long,Guo Na,Jia Guo-Liang,Li Xiao-Bing,Zhao Zhao-Ye,Wang Hui,Wang Jun-Chuan,Wu Xiang-Feng,Pan Cheng-Si,Liu Lei,Yang Lin-Lin
Fe-based MOFs (Fe-MOFs) are excellent photocatalysts and have synergy well with Fenton reagents relative to other MOFs. In this work, a series of uniformly covered NH 2 -Fe-MIL-88B@TpPa-1-COF composites were synthesized using an in-situ anchoring growth strategy, which used F127 as functional molecule to decorate NH 2 -Fe-MIL-88B nanoparticles to eliminate their surface electrostatic repulsion with Tp molecules during the subsequent coating procedure. Meanwhile, the -NH 2 groups in the skeleton of NH 2 -Fe-MIL-88B could also be used as anchors to covalently connect TpPa-1-COF shell and migration channels for effective charge transfer. This uniformly covered core–shell structure would endow these composites with much more contact area and imine bond linkage between the Fe-MOFs core and COFs shell. Compared with the random packing structure, the uniformly covered Fe-MOF@COF-3 composite possessed a higher proportion of Fe 2+ to Fe 3+ . As a result, the optimized Fe-MOF@COF-3 catalyst could achieve the highest photo-Fenton degradation efficiency of 93.9% for tetracycline hydrochloride (TC⋅HCl), which was much higher than 54.8% of pure NH 2 -Fe-MIL-88B. In addition, the uniform TpPa-1-COF shell could further effectively enhance the stability of NH 2 -Fe-MIL-88B by protecting Fe ions from leaching, and the toxicity of the water samples treated with our photo-Fenton degradation process declined obviously. All these merits will endow Fe-MOF@COF-3 photo-Fenton catalyst great potential application value as in the field of environmental governance.
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Scientific Reports
·
2023
·Vol. 13
·期 1
·1-11
·
IF 4.6
Fengchao Chen,Siya Zhang,Tongtong Yan,Hongquan Wang,Jie Li,Qiang Wang,Danish Subhan,Kun Li
Recently, natural photosensitizers, such as berberine, curcumin, riboflavin, and emodin, have received more and more attention in photodynamic therapy. Tanshinone I (TanI) is extracted from a traditional Chinese herb Danshen, and exhibits many physiological functions including antitumor. TanI is a photoactive phytocompounds, but no work was tried to investigate its potential photodynamic effect. This study evaluated the cytotoxicity induced by the photodynamic effect of TanI. The photochemical reactions of TanI were firstly investigated by laser flash photolysis. Then breast cancer cell line MDA-MB-231 was chosen as a model and the photodynamic effect of TanI on cancer cell was evaluated by MTT assay and flow cytometry. The results showed that TanI could be photoexcited by its UV–Vis absorption light to produce 3 TanI* which was quickly quenched by O 2 . MTT assay showed that the photodynamic effect of TanI resulted in more obvious inhibitive effect on cell survival and cell migration. Besides, the photodynamic effect of TanI could induce cell apoptosis and necrosis, lead to cell cycle arrest in G2, increase intracellular ROS, and decrease the cellular Δψm. It can be concluded that the photodynamic effect of TanI can obviously enhance the cytotoxicity of TanI on MDA-MB-231 cells in vitro, which indicated that TanI might serve as a natural photosensitizer.
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ANALYTICAL SCIENCES
·
2023
·
IF 1.6
Lai Liang,Zhang Mengyun,Liu Chusheng,Qu Jiahuan,Xu Dongsheng,Jiang Zhengjin
Rapid and effective separation of nucleotides (NTs) and their derivatives is crucial for studying their physiological functions. In this work, we comprehensively evaluated the separation ability of a zwitterionic hydrophilic monolith, i.e., poly(N,N-dimethyl-N-(3-methacrylamidopropyl)-N-(3-sulfopropyl)ammonium betaine- co –N,N’-methylenebisacrylamide) (poly(SPP- co -MBA)) for NTs analysis, including its selectivity, chemical stability under extremely basic condition and compatibility with hydrophilic interaction liquid chromatography (HILIC) coupled with mass spectrometry (HILIC-MS). The poly(SPP- co -MBA) monolith exhibited excellent chemical stability, as evidenced by the low relative standard deviation of retention time (0.16–1.05%) after 4000 consecutive injections over one month under strong alkaline elution condition (pH 10). After optimizing the separation conditions, including buffer pH and concentration, organic solvent content and column temperature, four nucleoside triphosphates, five nucleoside diphosphates and five nucleoside monophosphates were baseline separated within 7 min. Additionally, the mixtures containing one nucleoside and its corresponding mono-, di-, and triphosphates were baseline separated within only 3 min, respectively. It is good HILIC-MS compatibility was also confirmed by the satisfactory peak shape and high response of nine NTs. Overall, the proposed poly(SPP- co -MBA) monolith exhibited good mechanical stability and compatibility of HILIC-MS, making it a promising technique for NTs analysis. Graphical Abstract
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Science China-Materials
·
2023
·Vol. 66
·期 11
·4464-4472
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IF 8.1
Lin Zhu,Chen Changjian,Huang Honghui,Xu Beibei,Zhuang Yixi,Xie Rong-Jun
The mechanoluminescent (ML) stress sensing technology based on a unique mechano-to-photon conversion principle has exhibited great potentials in fields of flexible electronics, structural health diagnosis, biomechanical engineering, and self-powered displays. However, a big challenge for the ML sensing technology is that ML sensing materials with a typical inorganics@organics structure will be damaged when the applied mechanical load exceeds its strength limit, which thus reduces the reliability and durability of the sensing system. Herein, we propose a self-healing method to solve the failure of sensing materials by constructing a polyborosiloxane/ polydimethylsiloxane (PBS/PDMS) dual-network structure. The dynamic borate ester bonding in the PBS network provides self-healing capability, and the chemically crosslinked PDMS network enables the ML materials to maintain good elasticity and structural stability. The mechanical properties and ML properties of the dual-network material can be effectively restored even after fatal fracture, with a 75% recovery rate in tensile strength and nearly 100% recovery of mechano-to-photon conversion efficiency after 10 min at room temperature. The self-healing ML materials allow to greatly promote the applications of ML technologies for complex, high-strength and flexible stress sensing.
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JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
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2023
·Vol. 108
·期 3
·768-777
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IF 2.5
Xue Tong,Yin Yunjie
In this study, a reversible thermochromic wool fabric with excellent color fastness was prepared by reacting thiol-modified thermochromic microcapsules with the fabric. Treatment with tris (2-carboxyethyl) phosphine hydrochloride (TCEP) resulted in the appearance of a large number of thiol groups on the surface of the wool fabric, enabling the formation of disulfide bonds with thiol-containing microcapsules. The effective introduction of thiol groups onto the microcapsule surface and their incorporation onto the wool fibers was confirmed by FTIR analysis. DSC measurements revealed that the color transition temperature of the thiol-modified microcapsules was 48.98 °C. The photos of the color-changing process of the microcapsule solution and the variations in color parameters during the heating-cooling cycles demonstrated the excellent color-changing characteristics of the microcapsules. The covalent bonding between the thiol-modified microcapsules and the wool fabric contributed to its high color fastness. When the dosage of 3-mercaptopropyltriethoxysilane was 10% of tetraethyl orthosilicate, the fading fastness of the thermochromic wool fabric reached grade 3, while the staining fastness reached grade 5. The wet rubbing and dry rubbing fastness were at grade 3 and grade 4, respectively. Even after undergoing 30 cycles of heating and cooling experiments, the K/S value of the thermochromic wool fabric remained stable. Graphical Abstract
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MICROCHIMICA ACTA
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2023
·Vol. 190
·期 10
·1-7
·
IF 5.7
Quan Changyun,Chen Wenxuan,Yang Minghui,Hou Yi
An electrochemical sensor for the detection of uric acid was constructed using cobalt oxide-modified porous carbon@multi-walled carbon nanotube (MWCNTs) composite material for the modification of the electrode. Firstly, ZIF-67 is generated on carbon nanotubes using the surfactant cetylammonium bromide (CTAB) as template. The vesicles generated by CTAB act as nucleation sites for the in situ growth of ZIF-67. Then, cobalt oxide-modified porous carbon was obtained after high-temperature carbonization of ZIF-67, leading to the formation of cobalt oxide-modified porous carbon@MWCNT composite materials. Co-N and Co-O active sites on the composite material can improve the oxidation of uric acid on the electrode surface, leading to enhanced sensitivity and selectivity for uric acid detection. The sensor has a good linear range from 1 to 40 μM for uric acid detection with a detection limit of 0.09 μM. The sensor was utilized for determination of uric acid in actual serum samples. Graphical abstract
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-12
·
IF 16.6
Lu Youyou,Zhang Xuan,Zhao Liyan,Liu Hong,Yan Mi,Zhang Xiaochen,Mochizuki Kenji,Yang Shikuan
The templating method holds great promise for fabricating surface nanopatterns. To enhance the manufacturing capabilities of complex surface nanopatterns, it is important to explore new modes of the templates beyond their conventional masking and molding modes. Here, we employed the metal-organic framework (MOF) microparticles assembled monolayer films as templates for metal electrodeposition and revealed a previously unidentified guiding growth mode enabling the precise growth of metallic films exclusively underneath the MOF microparticles. The guiding growth mode was induced by the fast ion transportation within the nanochannels of the MOF templates. The MOF template could be repeatedly used, allowing for the creation of identical metallic surface nanopatterns for multiple times on different substrates. The MOF template-guided electrochemical growth mode provided a robust route towards cost-effective fabrication of complex metallic surface nanopatterns with promising applications in metamaterials, plasmonics, and surface-enhanced Raman spectroscopy (SERS) sensing fields.
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WATER AIR AND SOIL POLLUTION
·
2023
·Vol. 234
·期 10
·1-14
·
IF 2.9
Jiang Huize,Yang Jinge,Wang Xinxin,Wang Aihong,li Yuzhi,Wang Jinyu
The massive use of acetaminophen (APAP) poses a potential crisis for humans and the environment. In this paper, the degradation of APAP in aqueous solution was carried out using photocatalytic synergistic persulfate oxidation. To enhance the photocatalytic activity of g-C 3 N 4 and thus activate the persulfate (K 2 S 2 O 8 , PS) more effectively, the heterojunction photocatalyst TiO 2 /g-C 3 N 4 (TCN) was prepared by a hydrothermal method. The TCN-PS catalytic system showed a high efficiency for APAP degradation. When the amount of TCN and PS added was 0.6 g/L, the degradation rate of APAP at 10 mg/L was 78.3% after 60 min of illumination. Moreover, the TCN-PS catalytic system was effective in removing organic pollutants in acidic, neutral, and weakly alkaline environments. The radical quenching experiment results indicate that both sulfate radicals (SO 4 − •) and hydroxyl radicals (•OH) are involved in the degradation reaction. After five cycles, the TCN-PS catalytic system still has stable catalytic activity.
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-10
·
IF 16.6
Pan Zhao,Fu Qi-Qi,Wang Mo-Han,Gao Huai-Ling,Dong Liang,Zhou Pu,Cheng Dong-Dong,Chen Ying,Zou Duo-Hong,He Jia-Cai,Feng Xue,Yu Shu-Hong
Nanoparticles-based glues have recently been shown with substantial potential for hydrogel adhesion. Nevertheless, the transformative advance in hydrogel-based application places great challenges on the rapidity, robustness, and universality of achieving hydrogel adhesion, which are rarely accommodated by existing nanoparticles-based glues. Herein, we design a type of nanohesives based on the modulation of hydrogel mechanics and the surface chemical activation of nanoparticles. The nanohesives can form robust hydrogel adhesion in seconds, to the surface of arbitrary engineering solids and biological tissues without any surface pre-treatments. A representative application of hydrogel machine demonstrates the tough and compliant adhesion between dynamic tissues and sensors via nanohesives, guaranteeing accurate and stable blood flow monitoring in vivo. Combined with their biocompatibility and inherent antimicrobial properties, the nanohesives provide a promising strategy in the field of hydrogel based engineering.
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JOURNAL OF MATERIALS SCIENCE
·
2023
·Vol. 58
·期 34
·13875-13887
·
IF 4.5
Cheng Hengyi,Zuo Tongcheng,Chen Yixiang,Yu Dan,Wang Wei
With the advent of an ageing society, wearable strain sensors have great prospects for applications in artificial intelligence, motion detection and healthcare, and have attracted much attention from researchers. But the challenges of poor wear comfort, low sensitivity and clumsy appearance still greatly limited their practical applications. To address these problems, a facile strategy for the fabrication of fibrous strain sensors by wet spinning is proposed. Polyvinyl alcohol/waterborne polyurethane/MXene (PVA/WPU/MXene) is the main component to construct the conductive part of the fiber-based materials and aqueous calcium chloride solution is used as a coagulation bath in the spinning process. The relevant physicochemical properties of the resulting conductive fibers were characterized and tested. Though the facile wet-spinning process, an effective conductive network was achieved in the prepared stretchable sensor with excellent mechanical properties and chemical stability and can be woven into various fabric forms according to practical demanding. It was demonstrated that a sensitivity of 5.61 could be obtained with an elongation at break of over 358%. In addition, the sensing and weaving properties of the composite fibers were characterized, and application performance was measured by placing them on the elbow, wrist, and knee. As a result, the PVA/WPU/MXene composite fiber strain sensor displays a linear response, good sensitivity and cyclic stability and has great potential for wearable strain sensors and flexible strain sensors in complex environments
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-10
·
IF 16.6
Wang Qiuping,Chen Kui,Jiang Hui,Chen Cai,Xiong Can,Chen Min,Xu Jie,Gao Xiaoping,Xu Suowen,Zhou Huang,Wu Yuen
Cells possess isolated compartments that spatially confine different enzymes, enabling high-efficiency enzymatic cascade reactions. Herein, we report a cell-inspired design of biomimetic cascade catalysis system by immobilizing Fe single atoms and Au nanoparticles on the inner and outer layers of three-dimensional nanocapsules, respectively. The different metal sites catalyze independently and work synergistically to enable engineered and cascade glucose detection. The biomimetic catalysis system demonstrates ~ 9.8- and 2-fold cascade activity enhancement than conventional mixing and coplanar construction systems, respectively. Furthermore, the biomimetic catalysis system is successfully demonstrated for the colorimetric glucose detection with high catalytic activity and selectivity. Also, the proposed gel-based sensor is integrated with smartphone to enable real-time and visual determination of glucose. More importantly, the gel-based sensor exhibits a high correlation with a commercial glucometer in real samples detection. These findings provide a strategy to design an efficient biomimetic catalysis system for applications in bioassays and nanobiomedicines.
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Nature Communications
·
2023
·Vol. 14
·期 1
·1-14
·
IF 16.6
Peng Lu,Zhu Haojie,Wang Haobin,Guo Zhenbin,Wu Qianyuan,Yang Cheng,Hu Hong-Ying
Water disinfection is conventionally achieved by oxidation or irradiation, which is often associated with a high carbon footprint and the formation of toxic byproducts. Here, we describe a nano-structured material that is highly effective at killing bacteria in water through a hydrodynamic mechanism. The material consists of carbon-coated, sharp Cu(OH) 2 nanowires grown on a copper foam substrate. We show that mild water flow (e.g. driven from a storage tank) can efficiently tear up bacteria through a high dispersion force between the nanotip surface and the cell envelope. Bacterial cell rupture is due to tearing of the cell envelope rather than collisions. This mechanism produces rapid inactivation of bacteria in water, and achieved complete disinfection in a 30-day field test. Our approach exploits fluidic energy and does not require additional energy supply, thus offering an efficient and low-cost system that could potentially be incorporated in water treatment processes in wastewater facilities and rural communities.
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