Showing papers by "Sichuan University published in 2022"
TL;DR: Cur loaded tetrahedral framework nucleic acids (Cur-TFNAs) were synthesized to deliver Cur and present better anti-inflammatory effect than free Cur both in vivo and in vitro experiments through the determination of inflammation-related cytokines expression.
116 citations
TL;DR: In this paper , a tetrahedral framework nucleic acids (Cur-TFNAs) were synthesized to deliver Cur. Compared with free Cur, Cur-TFNs exhibit better anti-inflammatory effect than free Cur both in vivo and in vitro experiments through the determination of inflammation-related cytokines expression.
99 citations
TL;DR: In this article , the authors performed a systematic review and network meta-analysis of randomized controlled trials of weight-lowering drugs in adults with overweight and obesity, and found that phentermine-topiramate and GLP-1 receptor agonists were the best drugs in reducing weight.
98 citations
TL;DR: In this article, the authors provide a comprehensive review of visible light-driven heterogeneous catalysis of persulfate activation, including the reaction mechanisms involved and the various types of heterogeneous catalysts utilized in organic contaminant removal, with particular focus on strategies for its enhancement.
98 citations
TL;DR: A review of tetrahedral framework nucleic acids (tFNAs) and their potential for biomedical applications can be found in this article , where the authors focus on four key merits of tFNAs.
Abstract: Strategies for functionalizing diverse tetrahedral framework nucleic acids (tFNAs) have been extensively explored since the first successful fabrication of tFNA by Turberfield. One-pot annealing of at least four DNA single strands is the most common method to prepare tFNA, as it optimizes the cost, yield, and speed of assembly. This review concentrates on four key merits of tFNAs and their potential for biomedical applications. The natural ability of tFNA to scavenge reactive oxygen species, along with remarkable enhancement in cellular endocytosis and tissue permeability based on its appropriate size and geometry, promotes cell-material interaction to direct or probe cell behavior, especially to treat inflammatory and degenerative diseases. Moreover, the structural programmability of tFNA enables the development of static tFNA-based nanomaterials via engineering of functional oligonucleotides or therapeutic molecules, and dynamic tFNAs via attachment of stimuli-responsive DNA apparatuses, leading to potentially applications in targeted therapies, tissue regeneration, antitumor strategies, and antibacterial treatment. Although there are impressive performance and significant progress, challenges and prospects of functionalizing tFNA-based nanostructures are still indicated in this review. This article is protected by copyright. All rights reserved
97 citations
TL;DR: In this paper, a 3D conductive and lithiophilic carbon bowl-like hard carbon/reduced graphene nanosheets (CB@rGO) hybrid anode was proposed for Li metal anode.
Abstract: Lithium (Li) metal with high theoretical capacity and low electrochemical potential is the most ideal anode for next-generation high-energy batteries. However, the practical implementation of Li anode has been hindered by dendritic growth and volume expansion during cycling, which results in low Coulombic efficiency (CE), short lifespan, and safety hazards. Here, we report a highly stable and dendrite-free Li metal anode by utilizing N-doped hollow porous bowl-like hard carbon/reduced graphene nanosheets (CB@rGO) hybrids as three-dimensional (3D) conductive and lithiophilic scaffold host. The lithiophilic carbon bowl (CB) mainly works as excellent guides during the Li plating process, whereas the rGO layer with high conductivity and mechanical stability maintains the integrity of the composite by confining the volume change in long-range order during cycling. Moreover, the local current density can be reduced due to the 3D conductive framework. Therefore, CB@rGO presents a low lithium metal nucleation overpotential of 18 mV, high CE of 98%, and stable cycling without obvious voltage fluctuation for over 600 cycles at a current density of 1 mA·cm−2. Our study not only provides a good CB@rGO host and pre-Lithiated CB@rGO composite anode electrode, but also brings a new strategy of designing 3D electrodes for those active materials suffering from severe volume expansion.
79 citations
TL;DR: In this paper , the authors provide a comprehensive review of visible light-driven heterogeneous catalysis of persulfate activation, including the reaction mechanisms involved and the various types of heterogeneous catalysts utilized in organic contaminant removal, with particular focus on strategies for its enhancement.
78 citations
TL;DR: In this paper, a high-performance and multifunctional epoxy resins (EPs) with a unique structure with hyperbranched polyethyleneimine as flexible inner core and phosphaphenanthrene groups as rigid outer shell was successfully fabricated.
73 citations
TL;DR: Li et al. as discussed by the authors made a comprehensive review on real-world single image super-resolution (RSISR), and four major categories of RSISR methods, namely the degradation modeling-based, image pairsbased, domain translation-based and self-learning-based SR methods.
66 citations
TL;DR: In this paper, the Mn and O co-doped polymeric carbon nitride (Mn/O-PCN) was synthesized via simple calcination and activated peroxymonosulfate (PMS) for enrofloxacin (ENR) removal.
66 citations
TL;DR: This review summarized and discussed the recent strategies to enhance drug delivery and release of carrier-free nanodrugs for improved cancer therapy, including optimizing the intrinsic physicochemical properties and external modification.
TL;DR: In this paper , a few-layered tin sulfides immobilized on nitrogen and phosphorus dual-doped carbon nanofibres (SnSx-N/P-CNFs) was used as an anode material for SIBs.
TL;DR: In this paper, an emulsion dip-coating strategy was proposed to fabricate a super-hydrophobic fabric composite for high-efficiency interfacial evaporation, which achieved an efficiency of 93.3% under 1 sun.
TL;DR: In this paper , the authors summarized and discussed the recent strategies to enhance drug delivery and release of carrier-free nanodrugs for improved cancer therapy, including optimizing the intrinsic physicochemical properties and external modification.
TL;DR: In this paper, nitrogen-doped carbon nanotubes are used as a multi-functional support for CoSe2 nanoparticles to improve the crystal structure of the nanoparticles and render high O2-to-H2O2 conversion efficiency.
Abstract: Electrocatalytic oxygen reduction reaction (ORR) provides an attractive alternative to anthraquinone process for H2O2 synthesis. Rational design of earth-abundant electrocatalysts for H2O2 synthesis via a two-electron ORR process in acids is attractive but still very challenging. In this work, we report that nitrogen-doped carbon nanotubes as a multi-functional support for CoSe2 nanoparticles not only keep CoSe2 nanoparticles well dispersed but alter the crystal structure, which in turn improves the overall catalytic behaviors and thereby renders high O2-to-H2O2 conversion efficiency. In 0.1 M HClO4, such CoSe2@NCNTs hybrid delivers a high H2O2 selectivity of 93.2% and a large H2O2 yield rate of 172 ppm·h−1 with excellent durability up to 24 h. Moreover, CoSe2@NCNTs performs effectively for organic dye degradation via electro-Fenton process.
TL;DR: In this paper, a phosphorus-doped NiMoO4 nanorod (P-NiO4) was designed by using a facile hydrothermal method and subsequent low-temperature phosphorization treatment.
Abstract: Heteroatom doping is one of the most promising strategies toward regulating intrinsically sluggish electronic conductivity and kinetic reaction of transition metal oxides for enhancing their lithium storage. Herein, we designed phosphorus-doped NiMoO4 nanorods (P-NiMoO4) by using a facile hydrothermal method and subsequent low-temperature phosphorization treatment. Phosphorus doping played an indispensable role in significantly improving electronic conductivity and the Li+ diffusion kinetics of NiMoO4 materials. Experimental investigation and density functional theory calculation demonstrated that phosphorus doping can expand the interplanar spacing and alter electronic structures of NiMoO4 nanorods. Meanwhile, the introduced phosphorus dopant can generate some oxygen vacancies on the surface of NiMoO4, which can accelerate Li+ diffusion kinetics and provide more active site for lithium storage. As excepted, P-NiMoO4 electrode delivered a high specific capacity (1,130 mAh·g−1 at 100 mA·g−1 after 100 cycles), outstanding cycling durability (945 mAh·g−1 at 500 mA·g−1 over 200 cycles), and impressive rate performance (640 mAh·g−1 at 2,000 mA·g−1) for lithium ion batteries (LIBs). This work could provide a potential strategy for improving intrinsic conductivity of transition metal oxides as high-performance anodes for LIBs.
TL;DR: In this paper, the authors introduced Ag2Te into n-type Pb0.975Cr0.025Te for achieving a high peak figure of merit of 1.5 at 773 K. This high value is attributed to the synergistic optimization of carrier and phonon transports by introducing and the dynamic doping of Ag.
TL;DR: In this paper, an integrated technique of hydrothermal pretreatment coupling with deep eutectic solvent extraction was tailed to cleanly fractionate lignocellulose into three usable forms, i.e., water-soluble hemicellulose, cellulose-rich and lignin fractions, which were further upgraded to three nanomaterials.
TL;DR: In this article , a review of the recent processes of morphology study on ternary blends from the aspects of molecular crystallinity, molecular packing orientation, domain size and purity, directly observation of morphology, vertical phase separation as well as morphological stability is presented.
Abstract: Ternary blend organic solar cells (TB-OSCs) incorporating multiple donor and/or acceptor materials into the active layer have emerged as a promising strategy to simultaneously improve the overall device parameters for realizing higher performances than binary devices. Whereas introducing multiple materials also results in a more complicated morphology than their binary blend counterparts. Understanding the morphology is crucially important for further improving the device performance of TB-OSC. This review introduces the solubility and miscibility parameters that affect the morphology of ternary blends. Then, this review summarizes the recent processes of morphology study on ternary blends from the aspects of molecular crystallinity, molecular packing orientation, domain size and purity, directly observation of morphology, vertical phase separation as well as morphological stability. Finally, summary and prospects of TB-OSCs are concluded.
TL;DR: Wang et al. as discussed by the authors established a model framework for the multi-dimensional optimization of AWLR in a changing environment, which is advantageous of: (1) comprehensively allocating water and land resources on the basis of clarifying their interactions; (2) balancing incompatible goals from multiple dimensions including resources, society, economy, ecology, and environment; (3) proposing alternative allocation schemes of AW LR that can response to the changing environment of both natural and socioeconomic changes.
TL;DR: In this article, a model framework for the multi-dimensional optimization of agricultural water and land resources in a changing environment is established. But, the model framework is not suitable for the real world and the real-world case study in the Songhua River Basin in Northeast China is insufficient.
TL;DR: In this paper , a series of hierarchical NiS/carbon hexahedrons consist of self-assembling nanoplates or nanorods were synthesized via nitrilotriacetic acid (NTA)-assisted hydrothermal strategy.
TL;DR: In this paper, a pH/reactive oxygen species (ROS) dual responsive injectable glycopeptide hydrogel based on phenylboronic acid-grafted oxidized dextran and caffeic acidgrafted e-polylysine was constructed, which exhibited inherent antibacterial and antioxidant capacities.
TL;DR: In this paper , an integrated technique of hydrothermal pretreatment coupling with deep eutectic solvent extraction was tailed to cleanly fractionate lignocellulose into three usable forms, i.e., water-soluble hemicellulose, cellulose-rich and lignin fractions, which were further upgraded to three nanomaterials.
TL;DR: In this article , a new concept of structural gradient is proposed by designing compositionally graded multilayer composites with multiple successive phase transitions, to solve the challenge of the inferior temperature stability.
Abstract: The inherent disadvantage of lead-free potassium sodium niobate (KNN)-based ceramics is the severe temperature instability of piezoelectric charge coefficient (d33 ) caused by the polymorphic phase boundary. Herein, a new concept of structural gradient is proposed by designing compositionally graded multilayer composites with multiple successive phase transitions, to solve the challenge of the inferior temperature stability. The structural gradient ceramics exhibit a superior temperature reliability (d33 remains almost unchanged in the temperature range of 25-100 °C), far outperforming the previously reported KNN counterparts with d33 variation above 27% over the same temperature range. The synergistic contribution of the continuous phase transition, the strain gradient, and the complementary effect of each constituent layer leads to the excellent temperature stability, which is also confirmed by phase-field simulation. These findings are expected to provide a new paradigm for functional material design with outstanding temperature stability.
TL;DR: Li et al. as discussed by the authors developed a durable hollow core-shell TiO2@LaFeO3 (TLFO) nanosphere via facile carbon-sphere-templated method and sol-gel process, and applied it as heterojunction photocatalyst coupled with peroxymonosulfate (PMS) for efficient ATZ removal via enhanced electron-transfer.
Abstract: Insufficient charge-carriers separation and deteriorated recycling are still bottlenecks limiting practical photocatalytic water purification. Herein, we developed a durable hollow core-shell TiO2@LaFeO3 (TLFO) nanosphere via facile carbon-sphere-templated method and sol-gel process, and applied it as heterojunction photocatalyst coupled with peroxymonosulfate (PMS) for efficient atrazine (ATZ) removal via enhanced electron-transfer. The built-in electric field originated from the three-dimensional heterojunction between TiO2 and LaFeO3, acting as charge transfer driving force, enhanced the charge separation rate. Meanwhile, PMS could function as electron acceptor to boost photogenerated charge separation and maximize reactive oxidant species (e.g., •OH, SO4•−, O2•− and 1O2) production. Therefore, the fabricated TLFO heterojunction exhibited outstanding reusability, and superior ATZ removal efficiency without detectable metal ion leaching. This work successfully demonstrates the synergistic effect and superior hollow structure of TLFO heterojunction with promoted light utilization and PMS activation, which offers potential application for efficient abating environmental pollution using solar energy.
01 Apr 2022
TL;DR: Li et al. as discussed by the authors developed a durable hollow core-shell TiO2@LaFeO3 (TLFO) nanosphere via facile carbon-sphere-templated method and sol-gel process, and applied it as heterojunction photocatalyst coupled with peroxymonosulfate (PMS) for efficient ATZ removal via enhanced electron-transfer.
Abstract: Insufficient charge-carriers separation and deteriorated recycling are still bottlenecks limiting practical photocatalytic water purification. Herein, we developed a durable hollow core-shell TiO2@LaFeO3 (TLFO) nanosphere via facile carbon-sphere-templated method and sol-gel process, and applied it as heterojunction photocatalyst coupled with peroxymonosulfate (PMS) for efficient atrazine (ATZ) removal via enhanced electron-transfer. The built-in electric field originated from the three-dimensional heterojunction between TiO2 and LaFeO3, acting as charge transfer driving force, enhanced the charge separation rate. Meanwhile, PMS could function as electron acceptor to boost photogenerated charge separation and maximize reactive oxidant species (e.g., •OH, SO4•−, O2•− and 1O2) production. Therefore, the fabricated TLFO heterojunction exhibited outstanding reusability, and superior ATZ removal efficiency without detectable metal ion leaching. This work successfully demonstrates the synergistic effect and superior hollow structure of TLFO heterojunction with promoted light utilization and PMS activation, which offers potential application for efficient abating environmental pollution using solar energy.
TL;DR: In this paper , 15 samples around pyrite mine tailing were collected to explore the ecological effects of environmental factors on bacterial community and the results showed that most of the samples were acidic and contaminated by multiple metals.
TL;DR: In this article, 15 samples around pyrite mine tailing were collected to explore the ecological effects of environmental factors on bacterial community and the results showed that most of the samples were acidic and contaminated by multiple metals.
TL;DR: In this article, a multi-feature-based multi-model fusion method is proposed for the SOH estimation of lithium-ion batteries, where the key factors of the battery aging process are analyzed from multiple sources such as voltage, temperature, and incremental capacity curves.