Publications by authors named "Meng Yang Li"

Regulating strategies for long persistent luminescence (LPL) are always in high demand. Herein, a series of coordination polymers (CPs) (SUST-Z1-Z4) are fabricated using 1,10-phenanthroline derivatives involving different substituents (─H, ─CH, ─Cl, and ─Br) as ligands, respectively. Crystallographic data demonstrate that these CPs adopt alternating arrangements of cadmium halide chains and π-conjugated ligands.

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In recent years, metal-organic framework (MOF) materials with long persistent luminescence (LPL) have inspired extensive attention and presented various applications in security systems, information anticounterfeiting, and biological imaging fields. However, obtaining LPL materials with ultralong lifetime remains challenging. Halogen atoms, as nonmetallic elements existing in the frameworks, can not only induce the heavy-atom effect, effectively enhancing spin-orbit coupling and promoting intersystem crossing (ISC) processes, but also suppress non-radiative transition of the triplet states through the intra- and intermolecular interactions.

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  • Heavy metal pollution from informal e-waste recycling negatively impacts child growth, particularly in areas with high exposure levels.
  • A study compared children from e-waste recycling sites and control areas, revealing higher heavy metal levels and growth issues in the former, with tin being the most critical metal affecting growth.
  • The research highlights the need for better regulation of heavy metals like tin and antimony to improve child health outcomes and reveals metabolic pathways that might mediate the negative effects of these exposures.
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Hypertension is prevalent in e-waste recycling areas, and elevated blood pressure in children significantly increases the risk of hypertension in adulthood. However, the associations and toxic pathways between chronic exposure to metal(loids) and elevated blood pressure are rarely investigated. In this study, we measured the levels of 29 hair metal(loids) (chronic exposure biomarkers) and blood pressure in 667 susceptible children from an e-waste recycling area to explore their relationships.

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Tunable luminescence-assisted information storage and encryption holds increasing significance in today's society. A promising approach to incorporating the benefits of both organic long persistent luminescent (LPL) materials and rare-earth (RE) luminescence lies in utilizing organic host materials to sensitize RE luminescence, as well as employing Förster resonance energy transfer from hydrogen-bonded organic framework (HOF) phosphorescence to RE compound luminescence. This work introduces a one-pot, in situ pyrolytic condensation method, achieved through high-temperature melting calcination, to synthesize lanthanide ion-doped HOF materials.

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Objective: To investigate the clinical and genetic characteristics of a case of primary ciliary dyskinesia (PCD).

Methods: We collected the clinical data on a case of PCD treated in the Department of Reproductive Medicine of Linyi People's Hospital in July 2020, detected the genes of the patient by whole-exome sequencing (WES), verified the candidate mutations by Sanger sequencing, and predicted the protein structure of the mutant gene by SWISS-MODEL.

Results: The proband was found with the clinical phenotypes of chronic rhinitis, bronchiectasis, visceral transposition and male infertility.

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  • Environmental molybdenum exposure poses serious health risks, necessitating a new, lower reference dose (RfD) to protect public health.
  • A study with 2,267 participants in China found that higher molybdenum levels are linked to an increased risk of chronic kidney disease, with cystatin-C as a key health indicator.
  • Over 90% of participants exceeded the new RfD of 0.87 μg/kg-day, which is much lower than existing exposure guidelines, highlighting widespread health concerns in industrial areas.
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Metal-organic frameworks (MOFs) with long persistent luminescence (LPL) have attracted extensive research attention from researchers due to their potential applications in information encryption, anticounterfeiting technology, and security logic. In contrast to short-lived fluorescent materials, LPL materials offer a visible response that can be easily distinguished by the naked eye, thereby facilitating a much clearer visualization. However, there are few reports on functional LPL MOF materials as probes.

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Background: Creating a tunnel between the pancreas and splenic vessels followed by pancreatic parenchyma transection ("tunnel-first" strategy) has long been used in spleen-preserving distal pancreatectomy (SPDP) with splenic vessel preservation (Kimura's procedure). However, the operation space is limited in the tunnel, leading to the risks of bleeding and difficulties in suturing. We adopted the pancreatic "parenchyma transection-first" strategy to optimize Kimura's procedure.

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The significant health implications of e-waste toxicants have triggered the global tightening of regulation on informal e-waste recycling sites (ER) but with disparate governance that requires effective monitoring. Taking advantage of the opportunity to implement e-waste control in the Guiyu ER since 2015, we investigated the temporal variations in levels of oxidative DNA damage, 25 volatile organic compound metabolites (VOCs), and 16 metals/metalloids (MeTs) in urine in 918 children between 2016 and 2021 to demonstrate the effectiveness of e-waste control in reducing population exposure risks. The hazard quotients of most MeTs and levels of 8-hydroxy-2'-deoxyguanosine in children decreased significantly during this time, indicating that e-waste control effectively reduces the noncarcinogenic risks of MeT exposure and levels of oxidative DNA damage.

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The decade-long effort to control e-waste in China has made significant progress from haphazard disposal to organized recycling, but environmental research suggests that exposure to volatile organic compounds (VOCs) and metals/metalloids (MeTs) still poses plausible health risks. To investigate the exposure risk faced by children and identify corresponding priority control chemicals, we evaluated the carcinogenic risk (CR), non-CR, and oxidative DNA damage risks of VOCs and MeTs exposure in 673 children from an e-waste recycling area (ER) by measuring urinary exposure biomarker levels. The ER children were generally exposed to high levels of VOCs and MeTs.

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Identifying informal e-waste recycling activity is crucial for preventing health hazards caused by e-waste pollution. This study attempted to build a prediction model for e-waste recycling activity based on the differential exposure biomarkers of the populations between the e-waste recycling area (ER) and non-ER. This study recruited children in ER and non-ER and conducted a quasi-experiment among the adult investigators to screen differential exposure or effect biomarkers by measuring urinary 25 volatile organic compound (VOC) metabolites, 18 metals/metalloids, and 8-hydroxy-2'-deoxyguanosine (8-OHdG).

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Background: Pancreatic ductal adenocarcinoma (PDAC) is frequently diagnosed and treated in advanced tumor stages with poor prognosis. More effective screening programs and novel therapeutic means are urgently needed. Recent studies have regarded tight junction protein claudin 18.

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  • Ionic-conductive polymers are promising for solid-state lithium batteries, but anion migration can reduce their ionic conductivity and lead to battery failure.
  • The study proposes using polyvinyl ferrocene (PVF) as a positive electrode material to act as an anion-acceptor, enhancing charge carrier efficiency for better performance.
  • Lab tests of Li||PVF cells with a polyethylene oxide (PEO) matrix and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) show promising results: an initial capacity of 108 mAh g and over 70% capacity retention after 2800 cycles at elevated temperatures.
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  • Oxygen is vital for life, and a lack of it (hypoxia) can lead to severe health issues, but some species, like Qinghai and Brandt's voles, have adapted to thrive in low-oxygen environments.
  • The study compared the physiological and molecular responses of these voles under hypoxic and normoxic conditions, finding they tolerate low oxygen much better than Kunming mice, which suffered significant cardiac damage.
  • The voles employ different strategies to cope with hypoxia, with Qinghai voles enhancing heart function and oxygen transport, while Brandt's voles focus on increasing red blood cell production, illustrating their unique adaptations to oxygen scarcity.
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Hydrogen evolution reaction (HER) has a dominant function in energy conversion and storage because it supplies a most effective way for converting electricity into sustainable high-purity hydrogen. Layered double hydroxides (LDHs) have shown promising performance in the process of electrochemical water oxidation (a half-reaction for water splitting). Nevertheless, HER properties have not been well released due to the structural characteristics of related materials.

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  • XEN gel stents are designed for treating open-angle glaucoma (OAG) when other treatments have failed, with a focus on evaluating their impact on intraocular pressure (IOP), medication needs, and safety.
  • A systematic review of 56 relevant studies involving 4,410 eyes showed that the stents significantly reduced IOP by about 35% and decreased the need for antiglaucoma medications.
  • The treatment demonstrated a good safety profile, with less than 1% incidence of serious complications, while achieving a complete success rate of 21.0-70.8% over two years.
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In comparison with the prevalent 2D material-supported single atom catalysts (SACs), the design and fabrication of SACs with single molecule substrates are still challenging. Here we introduce a new type of SAC in which a recently identified all-boron fullerene B40 is employed as the support and its catalytic performance toward the nitrogen reduction reaction (NRR) process is explored in theory. Taking advantage of the novel heptagonal ring substructure on the sphere and the electron-deficient nature of boron, the atomic metals are facile to reside on B40 to form atomically dispersed η7-B40M exohedral complexes.

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We report FeOOH supported on Ni foam which enables highly efficient UOR electrocatalysis and can be readily produced through a hydrolysis reaction. Our developed UOR catalyst as the anode can provide a current density of 200 mA cm at 1.427 V vs.

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Four-electron transfer from U to the fullerene cage commonly exists in U@C (2 < 82) so far, while four- and three-electron transfers, which depend on the cage isomers, simultaneously occur in U@C. Herein, detailed quantum-chemical methods combined with statistical thermodynamic analysis were applied to deeply probe into U@C, which is detected in the mass spectra without any further exploration. With triplet ground states, novel isomers including isolated-pentagon-rule U@(51579)-C and U@(51573)-C as well as nonisolated-pentagon-rule U@(51365)-C were identified as thermodynamically optimal.

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To maximize the utilization and response to the high oxidative stress environment of tumor sites while avoiding the dilemma of enhancing reactive oxygen species (ROS) response in a single way, mitochondrial targeting combined with fluorescent self-reporting polymeric nanocarriers ( and ) with grafted structures were synthesized via a chemoenzymatic method in a high yield to simultaneously enhance the drug delivery of endogenous ROS responses. and loaded doxorubicin (DOX) at a high content over 12% and formed homogeneous spherical micelles. , both of them showed promising high sensitivity (detection limit below 200 nM HO), fast response, and ratiometric fluorescent self-reporting properties (fluorescent enhancement more than 200 times) to ROS and excellent stability under physiological conditions, while achieving a rapid release of the DOX in response to 1 mM HO.

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Background: Plenty of evidence has suggested that long non-coding RNAs (lncRNAs) have played a vital part may act as prognostic biomarkers in a variety of cancers. The aim of this study was to screen survival-related lncRNAs and to construct a lncRNA-based prognostic model in patients with cutaneous melanoma (CM).

Methods: We obtained lncRNAs expression profiles and clinicopathological data from the Cancer Genome Atlas (TCGA) and the Genotype-Tissue Expression (GTEx) databases.

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A mitochondria targeting and immobilized fluorescent probe () using triphenylphosphonium as the targeting group and methoxymaleimide as the fixed site is designed for the detection of ClO. The methoxymaleimide fixed group can react with nucleophiles, such as the reactive thiol groups present in mitochondrial polypeptides and proteins, and form covalent bonds to immobilize the probe within mitochondria. The immobilization of enhances its ability to withstand the risk of leakage from mitochondria.

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Triplet U@(28324)-C, violating the isolated pentagon rule, is experimentally recognized as the stable isomer for uranium-based endohedral monometallofullerene U@C. Here we first verified that triplet U@(31921)-C, following the isolated pentagon rule, was to be another thermodynamically stable isomer via density functional theory in conjunction with statistical thermodynamic analysis. U@(31921)-C was probably missing in the previous experiment and would be a promising isomer in the to-be experiment because of its excellently thermodynamic stability.

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The thermodynamic and dynamic stabilities of Sc X@C (X = C, N, and O) are explored via density functional theory combined with statistical thermodynamic analysis and ab initio molecular dynamics. It is the first time to comprehensively consider the effect of nonmetal atoms on trimetallic endohedral clusterfullerenes. Relative to Sc X@I (31924)-C (X = N and O) with general six-electron transfer, an intriguing electronic structure of unexplored Sc C@D (31923)-C with thermodynamic and dynamic stabilities is clearly disclosed.

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