Publications by authors named "Liming Fan"

To discover novel fungicides with good inhibitory effects on plant fungal diseases, twenty-five 3-indolyl-3-hydroxy oxindole derivatives (3a-3y) were synthesized. These newly derivatives were characterized by NMR and HRMS. Their antifungal activities against five plant pathogenic fungi were assessed in vitro.

View Article and Find Full Text PDF

Partial sleep deprivation (PSD) alters neural activity of intrinsic brain networks involved in cognitive functions. However, the age-related time-varying properties of large-scale brain functional networks after PSD remain unknown. Our study applied energy landscape analysis to resting-state functional magnetic resonance imaging data to characterize the dominant brain activity patterns in 36 healthy young (19 females, 23.

View Article and Find Full Text PDF

Efficient conversion of carbon dioxide (CO) into high-value chemicals is viewed as one of the most promising approaches for solving the problem of an energy shortage and serious environment pollution. However, design and synthesis of confined multifunctional catalysts with in situ engineered task-specific sites and nanoporous environments remain a complex and challenging task due to a lack of in-depth understanding of their structure and reaction mechanism. Herein, we report a highly robust 2D nanoporous framework of {[Tm(HFPDC)(DMF)]·DMF·HO} () (HFPDC = 4,4'-(4-(4-fluorophenyl)pyridine-2,6-diyl)diisophthalic acid).

View Article and Find Full Text PDF

Monitoring biomarker levels in body fluids is of great importance in clinical diagnosis. Herein, a robust 3D ZnMOF, {[Zn(BTPB)(bib)(μ-OH)]·2HO}, was fabricated based on the ligands of 1,4-bis(2,4,6-tricarboxylpyrid-5-yl)benzene (HBTPB) and 1,4-bis(imidazol-1-yl)benzene (bib). On the basis of its stable architecture and intrinsic luminescence, ZnMOF demonstrated remarkable potential as a bifunctional luminescent sensor for selective and sensitive detecting the biomarkers of 3-nitrotyrosine (3-NT) and 5-hydroxyindoleacetic acid (5-HIAA) in water and body fluids by employing distinct "turn-off" and "turn-on" responses.

View Article and Find Full Text PDF

The rapid detection of biomarkers in bodily fluids is vital for clinical diagnosis and regular disease monitoring. In this work, a mixed-ligand strategy was employed to successfully construct a nickel(II) metal-organic framework ([Ni(HTPTC)(bib)(HO)], NiMOF). Outstanding thermal and chemical stabilities coupled with the favorable luminescent performances endow NiMOF significant potential as an ideal bifunctional luminescence sensor with high selectivity and sensitivity, exceptional anti-interferences and recyclable performances, as well as low LODs for detecting 3-NT biomarker through "turn-off" luminescence quenching effects and HA biomarker through "turn-on" luminescence enhancement effects.

View Article and Find Full Text PDF

Repetitive transcranial magnetic stimulation (rTMS) is a promising intervention tool for the noninvasive modulation of brain activity and behavior in neuroscience research and clinical settings. However, the resting-state dynamic evolution of large-scale functional brain networks following rTMS has rarely been investigated. Here, using resting-state fMRI images collected from 23 healthy individuals before (baseline) and after 1 Hz rTMS of the left frontal (FRO) and occipital (OCC) lobes, we examined the different effects of rTMS on brain dynamics across the human cortex.

View Article and Find Full Text PDF

Trace detection of bioactive small molecules (BSMs) in body fluids is of great importance for disease diagnosis, drug discovery, and health monitoring. Based on the chiral ligand of 4,4'-(1,2-dihydroxyethane-1,2-diyl)dibenzoic acid (HL), an achiral 3D porous Ni(II)-MOF, with a trinuclear cluster based (3,9)-c {4·6}{4·6·8}-xmz net, was constructed under solvothermal conditions. Benefiting from its robust framework and excellent luminescent performance, NiMOF was endowed with remarkable capabilities in efficiently, rapidly, and sensitively detecting the 3-nitrotyrosine (3-NT) biomarker and 6-propyl-2-thiouracil (6-PTU) thyroid drug based on the spectral overlap and photo-induced electron transfer (PET) caused luminescence quenching response.

View Article and Find Full Text PDF

In order to achieve the high adsorption and catalytic performance of CO, the direct self-assembly of robust defect-engineered MOFs is a scarcely reported and challenging proposition. Herein, a highly robust nanoporous indium(III)-organic framework of {[In(CPPDA)(HO)](NO)·2DMF·3HO} (NUC-107) consisting of two kinds of inorganic units of chain-shaped [In(COO)(HO)] and watery binuclear [In(COO)(HO)] was generated by regulating the growth environment. It is worth mentioning that [In(COO)(HO)] is very rare in terms of its richer associated water molecules, implying that defect-enriched metal ions in the activated host framework can serve as strong Lewis acid.

View Article and Find Full Text PDF

Developing a highly active catalyst that can efficiently capture and convert carbon dioxide (CO) into high-value-added energy materials remains a severe challenge, which inspires us to explore effective metal-organic frameworks (MOFs) with high chemical stability and high-density active sites. Herein, we report a robust 3D lead(II)-organic framework of {(MeNH)[Pb(PTTPA)(HO)]·2DMF·3HO} () with unreported [Pb(COO)(HO)] clusters (abbreviated as {Pb}) as nodes (HPTTPA = 4,4',4″-(pyridine-2,4,6-triyl)triisophthalic acid). After thermal activation, is functionalized by the multifarious symbiotic acid-base active sites of open Pb sites and uncoordinated pyridine groups on the inner surface of the void volume.

View Article and Find Full Text PDF

A series of bis(indolyl)-hydrazide-hydrazone derivatives were synthesised, and their structures were characterised using H-NMR and HRMS. The antifungal activity of the prepared compounds was evaluated against Cav., Penz.

View Article and Find Full Text PDF

This case report presents a detailed analysis of a 31-year-old male patient who presented with a complex array of clinical symptoms, including proteinuria, hematuria, edema, and kidney insufficiency. Despite undergoing multiple tests, the results for anti-glomerular basement membrane antibodies yielded negative findings. Subsequently, kidney biopsy pathology revealed a distinct diagnosis of atypical anti-glomerular basement membrane (anti-GBM) disease with membrane hyperplasia.

View Article and Find Full Text PDF

The rapid detection of epinephrine (EPI) in serum holds immense importance in the early disease diagnosis and regular monitoring. On the basis of the coordination post-synthetic modification (PSM) strategy, a Eu functionalized ZnMOF (Eu@ZnMOF) was fabricated by anchoring the Eu ions within the microchannels of ZnMOF as secondary luminescent centers. Benefiting from two independent luminescent centers, the prepared Eu@ZnMOF shows great potential as a multi-signal self-calibrating luminescent sensor in visually and efficiently detecting serum EPI levels, with high reliability, fast response time, excellentrecycleability, and low detection limits of 17.

View Article and Find Full Text PDF
Article Synopsis
  • The study explores how spontaneous brain activity (intrinsic neural activities) changes over time when the brain is locally disturbed.
  • Researchers developed a method using statistical physics to analyze brain dynamics by examining patterns of nonreversibility in fMRI data.
  • Key findings indicate that longer analysis windows reduce variability of nonreversibility, show consistent states across different datasets, and reveal effects of stimulation on certain brain regions.
View Article and Find Full Text PDF

A palladium-catalyzed allylation of hydrazines with allyl alcohols and aldehydes was developed, enabling the syntheses of a series of allylhydrazones in good to excellent yields with high regioselectivity. Furthermore, the four-component tandem allylation carbonylation of hydrazines with allyl alcohols and aldehydes was established using the catalytic system, producing various allyl acylhydrazones. Additionally, the functionalized allyl acylhydrazones could be smoothly constructed with the catalytic system employing allylhydrazones as a partner.

View Article and Find Full Text PDF

We investigate the "roughness" of the energy landscape of a system that diffuses in a heterogeneous medium with a random position-dependent friction coefficient α(x). This random friction acting on the system stems from spatial inhomogeneity in the surrounding medium and is modeled using the generalized Caldira-Leggett model. For a weakly disordered medium exhibiting a Gaussian random diffusivity D(x) = kBT/α(x) characterized by its average value ⟨D(x)⟩ and a pair-correlation function ⟨D(x1)D(x2)⟩, we find that the renormalized intrinsic diffusion coefficient is lower than the average one due to the fluctuations in diffusivity.

View Article and Find Full Text PDF

To detect the effects of long non-coding ribonucleic acid (lncRNA) actin filament-associated protein 1-antisense RNA1 (AFAP1-AS1) on the proliferation and apoptosis of non-small cell lung cancer (NSCLC) A549 cells and its mechanism. 1) The expression of lncRNA AFAP1-AS1 in NSCLC A549 cells was detected via quantitative reverse transcription-polymerase chain reaction (qRT-PCR). 2) The changes in proliferation and apoptosis of A549 cells after low expression of lncRNA AFAP1-AS1 were detected using cell counting kit-8 (CCK-8) and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assays.

View Article and Find Full Text PDF

Background: Heterogeneity among critically ill patients undergoing invasive mechanical ventilation (IMV) treatment could result in high mortality rates. Currently, there are no well-established indicators to help identify patients with a poor prognosis in advance, which limits physicians' ability to provide personalized treatment. This study aimed to investigate the association of oxygen saturation index (OSI) trajectory phenotypes with intensive care unit (ICU) mortality and ventilation-free days (VFDs) from a dynamic and longitudinal perspective.

View Article and Find Full Text PDF

Enhancing the catalysis of metal-organic frameworks (MOFs) by regulating inherent Lewis acid-base sites to realize the efficient seperation and chemical fixation of inert carbon dioxide (CO) is crucial but challenging. Herein, the solvothermal self-assembly of Co, 5'-(4-carboxy-2-nitrophenyl)-2,2',2'',4',6'-pentanitro-[1,1':3',1''-terphenyl]-4,4''-dicarboxylic acid (HTNBTB) and 4'-phenyl-4,2':6',4''-terpyridine (PTP) generated a highly robust cobalt-organic framework of {[Co(TNBTB)(PTP)]·7DMF·6HO} (NUC-82). In NUC-82, the tri-core clusters of {Co} with linear shape are bridged by TNBTB to form two-dimensional structure in ac plane, which is further linked by PTP to generate a three-dimensional framework with two kinds of solvent-accessible channels: rhombic-like (ca.

View Article and Find Full Text PDF

Developing efficient and sensitive MOF-based luminescence sensors for bioactive molecule detection is of great significance and remains a challenge. Benefiting from favorable chemical and thermal stability, as well as excellent luminescence performance, a porous Zn(II)Ho(III) heterometallic-organic framework (ZnHoMOF) was selected here as a bifunctional luminescence sensor for the early diagnosis of a toluene exposure biomarker of hippuric acid (HA) through "turn-on" luminescence enhancing response and the daily monitoring of NFT/NFZ antibiotics through "turn-off" quenching effects in aqueous media with high sensitivity, acceptable selectivity, good anti-interference, exceptional recyclability performance, and low detection limits (LODs) of 0.7 ppm for HA, 0.

View Article and Find Full Text PDF
Article Synopsis
  • The study examined how polydatin influences pulmonary fibrosis caused by bleomycin (BLM) in mice by analyzing various inflammatory markers and gut microbiota diversity.
  • Researchers used antibiotics to deplete gut bacteria and performed fecal microbiota transplants to further understand the role of gut microbiota in the disease.
  • Results showed that polydatin significantly reduced fibrosis and inflammation in the lungs, suggesting its therapeutic potential may be linked to changes in gut microbiota composition.
View Article and Find Full Text PDF

Overexpression of tumor necrosis factor-α (TNF-α) is implicated in many inflammatory diseases, including septic shock, hepatitis, asthma, insulin resistance and autoimmune diseases, such as rheumatoid arthritis and Crohn's disease. The TNF-α signaling pathway is a valuable target, and anti-TNF-α drugs are successfully used to treat autoimmune and inflammatory diseases. Here, we study anti-inflammatory activity of an anti-TNF-α peptide (SN1-13, DEFHLELHLYQSW).

View Article and Find Full Text PDF

Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive approach to modulate brain activity and behavior in humans. Still, how individual resting-state brain dynamics after rTMS evolves across different functional configurations is rarely studied. Here, using resting state fMRI data from healthy subjects, we aimed to examine the effects of rTMS to individual large-scale brain dynamics.

View Article and Find Full Text PDF

Inspired by the regulatory luminescence properties of HBT derivatives, in this work, we mainly conduct a detailed theoretical exploration on the photoinduced excitation behavior of a novel di-proton-transfer type HBT derivative 1-bis(benzothiazolyl)naphthalene-diol (1-BBTND). The intramolecular double hydrogen bonding interaction and the excited state intramolecular double proton transfer (ESDPT) behavior of 1-BBTND fluorophore are investigated in combination with different polar solvent environments. From the structural changes and charge recombination induced by photoexcitation, we can conclude that strong polar solvent environment promotes the excited state dynamical reaction for 1-BBTND compound.

View Article and Find Full Text PDF

Transcranial alternating current stimulation (tACS) is considered to have a positive effect on the rehabilitation of Alzheimer's disease (AD) as an intervention method that matches stimulation frequency to neurogenesis frequency. However, when tACS intervention is delivered to a single target, the current received by brain regions outside the target may be insufficient to trigger neural activity, compromising the effectiveness of stimulation. Therefore, it is worth studying how single-target tACS restores gamma-band activity in the whole hippocampal-prefrontal circuit during rehabilitation.

View Article and Find Full Text PDF

Introduction: Auditory stimulation is one of the most important influence factors in the cognitive process. It is an important guiding role in cognitive motor process. However, previous studies on auditory stimuli mainly focused on the cognitive effects of auditory stimuli on the cortex, while the role of auditory stimuli in motor imagery tasks is still unclear.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_session6prt8anlm642puamoq9vjlr803phev67): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once