687 results match your criteria: "Nanjing University. Nanjing[Affiliation]"

Introduction: This study protocol specifies the primary research line and theoretical framework of the 2023 Survey of the Psychology and Behavior of the Chinese Population. It aims to establish a consistent database of Chinese residents' psychological and behavioral surveys through multi-center and large-sample cross-sectional surveys to provide robust data support for developing research in related fields. It will track the public's physical and psychological health more comprehensively and systematically.

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Coordination between 5,5',6,6'-tetrahydroxyindigo (4OH-ID) and boron tribromide unexpectedly affords a novel dynamic covalent polymer, namely P(ID-O-B), consisting of alternating indigo and indigo diradicaloid units. The catechol-boron dynamic bond plays a vital role in promoting the diradicaloid formation and stabilizing the formed diradicaloid segments. The diradicaloid segment in the polymer has a triplet ground state and a thermally populated doublet state, which has been confirmed by the EPR study.

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An artesunate-modified half-sandwich iridium(iii) complex inhibits colon cancer cell proliferation and metastasis through the STAT3 pathway.

RSC Chem Biol

December 2024

Jiangsu Collaborative Innovation Center of Biomedical Functional Materials/Nanjing Drum Tower Hospital, College of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China

Colon cancer is one of the most commonly diagnosed cancers and is recognized as the most aggressive tumor of the digestive system. Aberrant activation of signal transducer and activator of transcription 3 (STAT3) is associated with proliferation, metastasis and immunosuppression of the tumor cells. Here, to inhibit the STAT3 pathway and suppress metastasis in colon cancer cells, the half-sandwich iridium complex Ir-ART containing an artesunate-derived ligand was synthesized.

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Objective: To analyze the effect of interventional surgery on treatment efficacy and inflammatory cytokine (ICK) levels in diabetic patients with peripheral vascular disease (PVD).

Methods: A total of 116 diabetic patients with PVD admitted to the Second Affiliated Hospital of Guangzhou Medical University from August 2020 to March 2022 were selected for this retrospective analysis. Patients were divided into two groups: 58 patients receiving conventional medication were assigned to the control group, while 58 patients receiving interventional surgery in addition to conventional medication were assigned to the research group.

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Background: Oroantral fistula (OAF) is a pathological channel formed between the oral cavity and the maxillary sinus. A large size of OAF (≥5 mm) increases the risk of surgical failure, and an optimal surgical approach should be cautiously selected.

Objective: This study aims to characterize the application of nasal endoscopy and buccal fat pad (BFP) flaps to repair large OAFs in patients with odontogenic maxillary sinusitis (OMS).

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Fast synthesis of DNA origami single crystals at room temperature.

Chem Sci

December 2024

College of Engineering and Applied Sciences, State Key Laboratory of Analytical Chemistry for Life Science, National Laboratory of Solid State Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Chemistry and Biomedicine Innovation Center, Collaborative Innovation Center of Advanced Microstructures, Nanjing University Nanjing 210023 China

Article Synopsis
  • Structural DNA nanotechnology enables the design and assembly of DNA microstructures, but typically requires slow heat treatment to avoid disorganized aggregates.
  • The study introduces urea as a catalyst for rapid crystallization, allowing DNA origami to form cubic single crystals at room temperature in as little as 4 hours, growing into larger microcrystals over 2 days.
  • A unique phase diagram approach enables users to customize the melting temperature for crystallization, facilitating the growth of high-quality DNA crystals even in variable outdoor temperatures, which could lead to advances in adaptive self-assemblies and practical applications in functional DNA microstructures.
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A dual-locked cyclopeptide-siRNA conjugate for tumor-specific gene silencing.

RSC Chem Biol

November 2024

State Key Laboratory of Analytical Chemistry for Life Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University Nanjing 210023 China

Strategies allowing tumor-selective siRNA delivery while minimizing off-tumor gene silencing effects are highly demanded to advance cancer gene therapy, which however still remain challenging. We herein report a dual-locking bioconjugation approach to address this challenge. A dual-locked cyclopeptide-siRNA conjugate (DPRC) was designed to simultaneously endow siRNA with tumor-targeting properties and tumor-biomarker/visible-light dually controllable action.

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Copper depletion-induced tumor cuproptosis.

Chem Sci

November 2024

Department of Biomedical Engineering, College of Engineering and Applied Sciences, Nanjing National Laboratory of Microstructures, Jiangsu Key Laboratory of Artificial Functional Materials, Nanjing University Nanjing Jiangsu 210023 China

Copper homeostasis is crucial for cells, especially for rapidly proliferating cancerous cells. Copper imbalance-induced cell death (, cuproptosis) has emerged as a new strategy for tumor therapy. While copper accumulation-induced cuproptosis has been extensively investigated and its underlying mechanism recently elaborated, copper depletion-induced cuproptosis remains largely unexplored.

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Article Synopsis
  • Studies show kidney disease is linked to viral infections, causing kidney injury through systemic inflammation and direct infection of kidney cells.
  • Research using an immortalized human podocyte cell line (HPC) infected with lentivirus revealed strong immune responses and pathways related to cell death, indicating compromised cell viability.
  • The findings suggest that these lentivirus-infected HPC cells serve as a valuable model for studying how viral infections specifically damage podocytes, separate from other stressors like Adriamycin.
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Photoactivated hydride therapy under hypoxia beyond ROS.

Chem Sci

December 2024

MOE Key Laboratory of High Performance Polymer Material and Technology of Ministry of Education, Department of Polymer Science & Engineering, School of Chemistry & Chemical Engineering, Nanjing University Nanjing 210023 China

As compared to oxidative phototherapy, studies on reactive reductive species-participating photodynamic therapy (PDT) are rare. Porphyrins are typical photosensitizers restricted by the oxygen level, but efficacy and selectivity are always incompatible in PDT. Herein, we report that phlorins are ideal hydride (H) donors and explore a water-soluble triphenylphosphonium-modified zinc-coordinated porphyrin (ZnPor) for photogeneration of zinc-cored phlorin (ZnPhl).

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A high entropy metallic-high entropy nonmetallic community as a high performance electrocatalyst for the oxygen evolution reaction and oxygen reduction reaction.

Chem Sci

November 2024

State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210023 P. R. China

The multi-element synergism in high-entropy materials (HEMs) provides great opportunities as multi-functional catalysts or for the promotion of tandem reactions. Herein, a strategy that utilizes a high entropy precursor is proposed to realize the formation of a unique high entropy metallic-high entropy non-metallic community (HEM-HENMC). Aminotriazole acts as a "bonding agent" for the high entropy precursor, and not only binds the five metals Cr, Mn, Fe, Co and Ni together, but also introduces nitrogen and carbon .

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Xanthone-based polyketides with complex molecular frameworks and potent bioactivities distribute and function in different biological kingdoms, yet their biosynthesis remains under-investigated. In particular, nothing is known regarding how to switch between the C-C (C-selective) and C-C bond (C-selective) cleavages of anthraquinone intermediates involved in biosynthesizing strikingly different frameworks of xanthones and their siblings. Enabled by our characterization of antiosteoporotic brunneoxanthones, a subfamily of polyketides from FB-2, we present herein the brunneoxanthone biosynthetic gene cluster and the C-selective cleavage of anthraquinone (chrysophanol) hydroquinone leading ultimately to the bioactive brunneoxanthones under the catalysis of BruN (an undescribed atypical non-heme iron dioxygenase) in collaboration with BruM as a new oxidoreductase that reduces the anthraquinone into its hydroquinone using NADPH as a cofactor.

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Detecting Range Shrinking From Historical Amphibian Species Occurrences Under Influence of Human Impacts: A Case Study Using the Chinese Giant Salamander, .

Ecol Evol

November 2024

Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology, Key Laboratory for Land Satellite Remote Sensing Applications of Ministry of Natural Resources, School of Geography and Ocean Science Nanjing University Nanjing China.

Amphibian declines, driven by climate change (e.g., shifting temperatures, altered precipitation) and human activities like deforestation, agriculture, and urbanization, may lead to local extinctions.

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An electrochemiluminescence device for visualized detection of lead in practical samples.

RSC Adv

November 2024

Department of Radiotherapy, the Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou Medical Center, Nanjing Medical University Changzhou 213003 P. R. China

Lead (Pb) pollution poses a significant threat to human health due to its potential accumulation through the food chain. In response to this challenge, an array of electrochemiluminescence (ECL) devices has been developed for the accurate and visualized detection of trace Pb, achieving an ultra-low limit of detection (LOD) of 9.8 pg L.

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Bovine serum albumin framed activatable NIR AIE photosensitizer for targeted tumor therapy.

Biomaterials

April 2025

State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University Nanjing, 210023, China; Chemistry and Biomedicine Innovation Center, Nanjing, 210023, China. Electronic address:

Organic near-infrared (NIR) photosensitizers (PS) largely facilitate photodynamic therapy (PDT). To overcome aggregation induced quenching and diminishment of reactive oxygen species (ROS) generation capability of NIR-PS, aggregation-induced emission (AIE) effect groups have been introduced to generate NIR AIE photosensitizers. However, currently reported NIR AIE photosensitizers all take "always-on" activity that may cause systemic phototoxic side effects.

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Chiral organometallic Pt(ii) complexes have been demonstrated to be excellent circularly polarized luminescence (CPL) materials due to their rich phosphorescence and strong self-assembly characteristics. However, it remains a formidable task to simultaneously achieve high luminance () and electroluminescence dissymmetry factor ( ) values for circularly polarized electroluminescence (CP-EL) devices of Pt(ii) complex-based emitters. In this study, we carry out a straightforward and efficient protocol to construct highly CPL-active helical columnar () emitters by using chiral homoleptic triazolatoplatinum(ii) metallomesogens (/-HPt).

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Multi-level insights into the immuno-oncology-microbiome axis: From biotechnology to novel therapies.

Imeta

October 2024

Department of Thoracic Surgery The Affiliated Wuxi People's Hospital of Nanjing Medical University, Wuxi People's Hospital, Wuxi Medical Center, Nanjing Medical University Wuxi China.

Article Synopsis
  • * Advances in microbiome sequencing technologies are crucial for understanding how gut microbiota influence tumors and the interactions between host cells and microbes within tumors.
  • * Future advancements in biotechnology are expected to enhance cancer treatment strategies through microbial therapies and bioengineered microbes, diversifying current oncotherapy options.
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Oral disease is a severe healthcare challenge that diminishes people's quality of life. Functional hydrogels with suitable biodegradability, biocompatibility, and tunable mechanical properties have attracted remarkable interest and have been developed for treating oral diseases. In this review, we present up-to-date research on hydrogels for the management of dental caries, endodontics, periapical periodontitis, and periodontitis, depending on the progression of dental diseases.

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Objective: To compare the treatment efficacy of conventional restoration techniques versus micro-invasive restoration techniques utilizing a microscope in the restorative treatment for dental caries.

Methods: The clinical information of 84 patients who received restorative treatment for dental caries was retrospectively analyzed. Patients were divided into two groups according to the type of restoration they received.

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Article Synopsis
  • Classic photocatalysis struggles with short-lived charge separation and proximity issues, which limits its effectiveness.
  • By modifying a viologen with different electron-accepting and donating components, researchers created a new coordination polymer, Cd-TzBDP, that enhances the efficiency of photocatalytic processes.
  • This new material allows for rapid and long-range electron transfer, enabling continuous catalytic reactions relevant to pharmaceuticals and mimicking biological systems to improve electron transport in different oxygen environments.
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Article Synopsis
  • * A new strategy combining carbon nanodots (N-CDs) with NiO/Ni to create a nanocomposite significantly enhanced the electro-oxidation of methanol and showed notable stability during extended operations.
  • * This research suggests a promising approach for creating high-performance, low-cost catalysts that could make DMFCs more commercially viable by improving their efficiency and reliability.
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Well-Being and Cardiovascular Health: Insights From the UK Biobank Study.

J Am Heart Assoc

October 2024

Department of Neurology, Division of Life Sciences and Medicine, Centre for Leading Medicine and Advanced Technologies of IHM, The First Affiliated Hospital of USTC University of Science and Technology of China Hefei Anhui China.

Background: Cardiovascular diseases (CVDs) are a leading global health concern. Emerging evidence suggests a potential protective role of well-being in reducing CVD risk.

Methods And Results: We conducted a cohort analysis using the UK Biobank data set, encompassing 121 317 participants.

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Exclusive catalytic hydrogenation of nitrobenzene toward -aminophenol over atomically precise Au(SR) clusters.

Chem Sci

September 2024

Key Lab of Mesoscopic Chemistry of MOE and Jiangsu Key Lab of Vehicle Emissions Control, School of Chemistry and Chemical Engineering, Nanjing University Nanjing 210093 China

Despite the advances in devising green methodologies for selective hydrogenation of nitrobenzene toward -aminophenol, it is still difficult to realize -aminophenol as the exclusive product in heterogeneous metal catalysis, as the excessive hydrogenation of nitrobenzene usually results in the aniline byproduct. Herein we report that a metal cluster containing 36 gold atoms capped by 24 thiolate ligands provides a unique pathway for nitrobenzene hydrogenation to achieve a -aminophenol selectivity of ∼100%. The gold cluster can efficiently suppress the over-hydrogenation of amino groups hydroxyl rearrangement with the aid of water and sequentially the proton transfer promoted by acid toward -aminophenol.

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Impact of dental operative microscopes on precision in minimally invasive dental restoration procedures.

Am J Transl Res

August 2024

Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Institute of Stomatology, Nanjing University Nanjing 210008, Jiangsu, China.

Objective: To evaluate the effect of dental operative microscopes on precision in minimally invasive dental restoration procedures.

Methods: This retrospective analysis included patients who underwent minimally invasive dental restoration procedure at Nanjing Stomatological Hospital from March 2018 to December 2019. Patients were categorized into two groups, an observation group treated with microscope-guided provisional restorations, and a control group treated using conventional methods.

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Helicene-based circularly polarized multiple resonance thermally activated delayed fluorescence (CP-MR-TADF) materials are promising for ultra-high-definition and 3D displays, but most of them encounter potential problems such as easy racemization during the thermal deposition process, low luminous efficiency, and low luminescence dissymmetry factor ( ), making the development of efficient circularly polarized organic light-emitting diodes (CP-OLEDs) a significant challenge. Here, we report a pair of CP-MR-TADF enantiomers with high-order B,N-embedded hetero[8]helicene, (/)-BN-TP-ICz, by fusing two MR chromophores, DtCzB and indolo[3,2,1-]carbazole (ICz). BN-TP-ICz exhibits green emission in toluene with a peak of 531 nm and a full-width at half-maximum (FWHM) of 36 nm.

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