Publications by authors named "Fang-yuan Chen"

Autophagy is a ubiquitous process of organelle interaction in eukaryotic cells, in which various organelles or proteins are recycled and operated through the autophagy pathway to ensure nutrient and energy homeostasis. Although numerous fluorescent probes have been developed to image autophagy, these environment-responsive probes suffer from inherent deficiencies such as inaccuracy and limited versatility. Here, we present a modular macrocyclic amphiphile Förster Resonance Energy Transfer (FRET) platform (SC6A12C/NCM, SN), constructed through the amphiphilic assembly of sulfonatocalix[6]arene (SC6A12C) with N-cetylmorpholine (NCM) for lysosome targeting.

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The excellent surface properties of Mg-modified biochar have highlighted a broad application prospect for soil heavy metal mitigation. However, the soil biotic aging process can have an impact on the physical and chemical properties of biochar as well as the heavy metal removal performance. Therefore, MgCl-modified biochar was subjected to a six-month microbial and enzymatically aged test to explore the effects of different biotic aging processes on the physical and chemical properties.

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Article Synopsis
  • - Eye drops are being developed as a promising non-invasive treatment for diseases affecting the back of the eye, but their effectiveness is challenged by various eye barriers.
  • - Researchers propose using a single molecule nanomedicine called sulfonated azocalix[4]arene (SAC4A) to improve drug delivery, highlighted by its small size, negative charge, and ability to release drugs in low-oxygen conditions.
  • - A study demonstrated that SAC4A could effectively deliver the drug sunitinib to treat wet age-related macular degeneration (wAMD), increasing the amount of drug reaching the targeted eye tissue significantly and enhancing its treatment effects.
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Objective: This study aims to optimize the downgrading of BI-RADS class 4a nodules by combining various sectional elastography techniques with age.

Materials And Methods: We performed conventional ultrasonography, strain elastography (SE), and shear wave elastography (SWE) on patients. Quantitative parameters recorded included age, cross-sectional and longitudinal area ratios (C-EI/B, L-EI/B), strain rate ratios (C-SR, L-SR), overall average elastic modulus values (C-Emean1, L-Emean1), five-point average elastic modulus values (C-Emean2, L-Emean2), and maximum elastic modulus values (C-Emax, L-Emax).

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Many active pharmaceutical ingredients have a specific bitter taste. To enhance patient compliance and treatment efficacy, taste-masking agents are crucial in oral drug formulations. Confronting numerous bitter drug molecules with varied structures, the pharmaceutical field strives to explore and develop universal and effective masking approaches.

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Real-time tracking of drug release from nanomedicine in vivo is crucial for optimizing its therapeutic efficacy in clinical settings, particularly in dosage control and determining the optimal therapeutic window. However, most current real-time tracking systems require a tedious synthesis and purification process. Herein, a supramolecular nano-tracker (SNT) capable of real-time tracking of drug release in vivo based on non-covalent host-guest interactions is presented.

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Aims: Previous evidence suggests that serum lung cancer biomarkers are associated with inflammatory conditions; however, their relationship with peripheral arterial stiffness remains unclear. Therefore, the present study investigated the relationship between serum lung cancer biomarkers and peripheral arterial stiffness in middle-aged Chinese adults.

Methods: In total, 3878 middle-aged Chinese adults were enrolled in this study.

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The complexity, heterogeneity, and drug resistance of diseases necessitate a shift in therapeutic paradigms from monotherapy to combination therapy, which could augment treatment efficiency. Effective treatment of advanced osteoarthritis (OA) requires addressing three key factors contributing to its deterioration: chronic joint inflammation, lubrication dysfunction, and cartilage-tissue degradation. Herein, we present a supramolecular nanomedicine of multifunctionality via molecular recognition and self-assembly.

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The precise recognition and sensing of steroids, a type of vital biomolecules, hold immense practical value across various domains. In this study, we introduced corral[4]BINOLs (C[4]BINOLs), a pair of enantiomeric conjugated deep-cavity hosts, as novel synthetic receptors for binding steroids. Due to the strong hydrophobic effect of their deep nonpolar, chiral cavities, the two enantiomers of C[4]BINOLs demonstrated exceptionally high recognition affinities (up to 10 M) for 16 important steroidal compounds as well as good enantioselectiviy (up to 15.

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The development of artificial receptors that combine ultrahigh-affinity binding and controllable release for active guests holds significant importance in biomedical applications. On one hand, a complex with an exceedingly high binding affinity can resist unwanted dissociation induced by dilution effect and complex interferents within physiological environments. On the other hand, stimulus-responsive release of the guest is essential for precisely activating its function.

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Article Synopsis
  • Host-guest drug delivery systems (HGDDSs) enhance drug delivery by allowing efficient drug loading, passive targeting, and controlled release, but face challenges in incorporating active targeting due to complex functionalization.
  • The researchers developed a new active targeting HGDDS called Biotin-SAC4A, which uses biotin-modified sulfonated azocalix[4]arene to effectively deliver the cancer drug doxorubicin (DOX) into cancer cells, improving its anti-tumor effects.
  • The Biotin-SAC4A system demonstrated both hypoxia-responsive targeting and the ability to release DOX more effectively to tumors compared to similar formulations, highlighting its potential for breast cancer therapy and other medical applications.
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Acid modification has been widely used to modify the structural properties of biochars. However, acid modification led to the large consumption of acid, increased difficulty of waste effluent disposal, and a high application cost. To evaluate the advantages and application potential of biochars prepared under CO, utilizing pyrolysis to directly modify biochars to improve heavy metal removal efficiency and reduce production cost, would be an important prerequisite for the broad application of biochars.

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The pursuit of synthetic receptors with high binding affinities has long been a central focus in supramolecular chemistry, driven by their significant practical relevance in various fields. Despite the numerous synthetic receptors that have been developed, most exhibit binding affinities in the micromolar range or lower. Only a few exceptional receptors achieve binding affinities exceeding 10  M , and their substrate scopes remain rather limited.

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Accurately distinguishing between enantiomeric molecules is a fundamental challenge in the field of chemistry. However, there is still significant room for improvement in both the enantiomeric selectivity (K /K ) and binding strength of most reported macrocyclic chiral receptors to meet the demands of practical application scenarios. Herein, we synthesized a water-soluble conjugated tubular host-namely, corral[4]BINOL-using a chiral 1,1'-bi-2-naphthol (BINOL) derivative as the repeating unit.

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  • Biochar is a special material that helps capture carbon and keep it stable, making it useful for improving soil.
  • This study looked at different types of biochar made from things like sewage and chicken poop, and how they change over time in soil.
  • Scientists found that certain minerals in biochar can protect carbon from being lost, while some minerals might actually cause more carbon to be lost.
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Imbalance of macrophage polarization plays a critical role in the progression of rheumatoid arthritis (RA). Geniposide (GE) has been shown to exert anti-inflammatory effects. However, the effect of GE on macrophage polarization remains unclear.

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Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by a joint hypoxia microenvironment. Our previous untargeted metabolomics study found that sphingolipid (SPL) metabolism was abnormal in the joint synovial fluid samples from adjuvant arthritis (AA) rats. Geniposide (GE), an iridoid glycoside component of the dried fruit of Ellis, is commonly used for RA treatment in many Asian countries.

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African horse sickness (AHS) is a devastating equine infectious disease. On 17 March 2020, it first appeared in Thailand and threatened all the South-East Asia equine industry security. Therefore, it is imperative to carry out risk warnings of the AHS in China.

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To systematically review the efficacy of Xuebijing Injection combined with western medicine in the treatment of systemic inflammatory response syndrome(SIRS). In this study, CBM, CNKI, Wanfang, VIP, PubMed and EMbase databases were retrieved for clinical randomized controlled trials on the effect of Xuebijing Injection combined with western medicine in the treatment of SIRS from the establishment of the database to July 31, 2020. After screening, Meta-analysis was conducted by RevMan 5.

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A visible-light photoredox-catalyzed sulfonyl lactonization of unsaturated carboxylic acids with sulfonyl chlorides is described. This reaction features good functional group tolerance and a broad substrate scope, providing a simple and efficient protocol to access a wide range of sulfonyl lactones in high to excellent yields. Preliminary mechanistic investigations suggested that a free-radical pathway should be involved in the process.

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A copper-catalyzed intermolecular electrophilic amination of benzamides with -benzoyl hydroxylamines was achieved with the assistance of an 8-aminoquinolyl group. With this protocol, good compatibility was observed for a variety of aryl amides and heteroaryl amides, and excellent tolerance with various functional groups was achieved. Significantly, the monoaminated product was overwhelmingly delivered under the simple reaction conditions.

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Migration characteristics of the heavy metals Fe, Zn, Mn, and Ni during the preparation of biochar from municipal sludge were studied, and the optimal pyrolysis temperature for the preparation of biochar was determined based on potential environmental risks. Four heavy metals (Fe, Zn, Mn, and Ni) with high total contents in the biochar were selected to determine their species and content changes under different pyrolysis temperatures using the BCR extraction method. An environmental risk assessment for sludge-based biochar was also carried out using the potential ecological risk index (PERI) and risk assessment code (RAC).

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Long-term stability is important for the practical application of aerobic granular sludge system under low carbon to nitrogen ratio (C/N). In this study, aerobic granular sludge, seeded in the reactors A and B, were cultivated under low C/N to investigate the properties, performance, and resilience to shock load in the long-term operation. The load of carbon and nitrogen in the feed was increased gradually.

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Article Synopsis
  • The paper talks about how past influenza pandemics, like the 2009 H1N1 swine flu, caused problems for public health and focuses on how swine flu can spread from pigs to humans when they are being processed.
  • The authors created a new model to understand how swine flu spreads between pigs and humans and calculated important points called equilibrium points that show when things can stay the same.
  • They also looked at how sick animals might invade areas where humans live and connected this to a detailed theory about how the disease can spread quickly in different habitats.
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  • The spread of zoonotic diseases (like plague) is influenced by how humans and animals interact, especially with rodents being the main carriers.
  • Scientists have created a new mathematical model to better understand how plague spreads between different species, like wild and pet rodents and humans.
  • This model helps explain the relationships between these species and can predict when diseases like plague might break out.
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