Hengjun Zhang

ORCID: 0000-0003-3348-8148
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Research Areas
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Organic Electronics and Photovoltaics
  • Organic Light-Emitting Diodes Research
  • Conducting polymers and applications
  • Control and Dynamics of Mobile Robots
  • Adaptive Control of Nonlinear Systems
  • Luminescence and Fluorescent Materials
  • Metal-Organic Frameworks: Synthesis and Applications
  • Robotic Path Planning Algorithms
  • Supramolecular Chemistry and Complexes
  • Crystallography and molecular interactions
  • Environmental Quality and Pollution
  • Remote Sensing in Agriculture
  • Wastewater Treatment and Nitrogen Removal
  • Metal complexes synthesis and properties
  • Magnetism in coordination complexes
  • Cancer Risks and Factors
  • Porphyrin and Phthalocyanine Chemistry
  • Microbial Community Ecology and Physiology
  • Lanthanide and Transition Metal Complexes
  • Land Use and Ecosystem Services
  • Organic and Molecular Conductors Research
  • Wireless Power Transfer Systems
  • Environmental DNA in Biodiversity Studies

China Medical University
2023-2025

First Hospital of China Medical University
2023-2025

Foshan University
2008-2024

Stomatology Hospital
2024

Donghua University
2024

Nanchong Central Hospital
2023

North Sichuan Medical University
2023

Ministry of Ecology and Environment
2010-2021

Tiangong University
2020

South China Institute Of Environmental Sciences
2010-2019

Grasslands in the Tibetan Plateau are claimed to be sensitive and vulnerable climate change anthropogenic activities. Quantifying impacts of activities on grassland growth is an essential step for developing sustainable ecosystem management strategies under background increasing occurring plateau. Net primary productivity (NPP) one key components carbon cycle terrestrial ecosystems, can serve important role assessment vegetation growth. In this study, a modified Carnegie–Ames–Stanford...

10.3390/rs10091352 article EN cc-by Remote Sensing 2018-08-25

Lithium battery disassembly is a complex task that presents numerous challenges, including the wide variety of types, intricate manufacturing processes, and absence standardised procedures. These challenges pose significant obstacles in achieving efficient accurate operations. Consequently, there clear need for guidance support throughout process. Conventional strategies providing often struggle to adapt dynamic changes occur during Therefore, it essential develop an approach offers...

10.1080/09544828.2024.2301876 article EN Journal of Engineering Design 2024-01-16

N,N'-Bis(n-octyl)-2,3,6,7-tetrabromonaphthalene diimide (TBNDI) was synthesized by a new imidization reaction and characterized HRMS, (1)H NMR, (13)C elemental analyses, FT-IR, UV-vis, single-crystal X-ray analysis. The TBNDIs are the key precursors for synthesis of core-tetrasubstituted-naphthalene diimides.

10.1021/ol701539z article EN Organic Letters 2007-09-01

Novel butterfly pyrene derivatives functionalized with trifluoromethylphenyl and thienyl aromatic groups in the 1-, 3-, 6- 8-positions of cores have been synthesized by Suzuki coupling reactions, their crystal structures, optical electrochemical properties investigated; additionally, field effect transistor using as active material exhibited a p-type performance.

10.1039/b515433b article EN Chemical Communications 2006-01-01

An asymmetric heteroacene compound anthra[2,3-b]benzo[d]thiophene has been facilely synthesized. FETs fabricated with the exhibit a mobility as high 0.41 cm2 V−1 s−1 at room temperature. High and good stability suggest that exploration of organic semiconductors would be extremely promising for application in electronics.

10.1021/cm801305f article EN Chemistry of Materials 2008-06-06

A novel type of anti and syn isomers a pentacyclic compound consisting two thiophene rings one pyrrole ring were efficiently synthesized from benzo[b]thiophene, the isomer exhibits better charge transport OFET properties compared with its N-hexyl substitution.

10.1039/b813683a article EN Chemical Communications 2008-01-01

A new series of ladder-type heteroacenes containing both pyrrole and furan rings, 5,6-disubstituted diindolo[3,2-b:4,5-b']thiophenes (DITs), were effectively synthesized from N-functionalized 3,3'-dibromo-2,2'-biindoles undergoing intramolecular cyclization with bis(phenylsulfonyl) sulfide organolithium. Single-crystal X-ray results demonstrate that 5,6-dipropyldiindolo[3,2-b:4,5-b']thiophene (4b) forms a herringbone-type packing motif 5,6-di(p-tolyl)diindolo[3,2-b:4,5-b']thiophene (4d)...

10.1021/jo800622y article EN The Journal of Organic Chemistry 2008-05-22

Abstract In this paper, the saturated practical stabilization problem is addressed for a class of nonholonomic mobile robots based on visual servoing feedback with uncertain camera parameters. The new switching control design method to be proposed directly original system, which can avoid singularity arising from state or input transformation. A discontinuous controller presented by applying multi‐step strategy and theory finite‐time stability. closed‐loop system stabilized prescribed...

10.1002/asjc.829 article EN Asian Journal of Control 2013-12-19

In this study, phase-transited lysozyme (PTL) induced Ca10(PO4)6(OH)2 (PTL-HA) coating was applied to the 3D-printed titanium surface for improving bioactivity. The morphology and phase of were analyzed by EDS, SEM, XRD, XPS, while biocompatibility investigated in vitro. observation from SEM showed that a uniform with presence spheric-like plate-shaped crystals covered on titanium. main composition Ca10(PO4)6(OH)2. More importantly, vitro results PTL-HA could upregulate expression...

10.1016/j.apsadv.2023.100568 article EN cc-by-nc-nd Applied Surface Science Advances 2024-01-09

A series of semiconducting copolymers incorporating dithieno[3,2-b:2′,3′-d]thiophene moieties in the polythiophene backbone were synthesized. The resulting four are found to have large band gap (∼ 2.5 eV) and ionization potential (−5.1 eV). Organic field-effect transistors fabricated by spin-coating polymer solutions onto OTS-modified SiO2/Si substrates with top-contact configuration. best hole mobility afforded was 0.028 cm2V−1 s−1 an on/off ratio 2 × 104 a threshold voltage about −18.9 V...

10.1039/b801603h article EN Journal of Materials Chemistry 2008-01-01

Dicyanovinyl-substituted compounds as electron transport materials are rarely studied, especially oligomers. A new series of fluorene or carbazole-based and dicyanovinyl-capped oligomers consisting benzene thiophene segments were synthesized using the Stille coupling reaction their physical properties investigated. Optical spectra show that introduction electron-accepting groups induces an intramolecular charge transfer, resulting in a shift absorption onset toward longer wavelengths....

10.1039/b715920j article EN Journal of Materials Chemistry 2008-01-01

Abstract The optimal chemotherapy backbone and specific population of triple-negative breast cancer (TNBC) patients that benefit from neoadjuvant immunotherapy are not well established. This prospective, single-arm, phase II TREND trial assessed the efficacy safety tislelizumab plus nab-paclitaxel epirubicin/cyclophosphamide-based as a treatment for TNBC (ChiCTR2000035262). primary endpoint was pathological complete response (pCR), with secondary endpoints including assessment objective rate...

10.1038/s41392-025-02254-3 article EN cc-by Signal Transduction and Targeted Therapy 2025-05-25

A novel non-planar pentaphenylbenzene functionalized benzo[2,1,3]thiadiazole derivative (BPTBTD) has been designed and synthesized with only three steps, applied into non-doped organic light-emitting diodes (OLEDs) as a red molecular emitter. The molecule exhibits good solubility in common solvents, excellent thermal stability film-forming properties. most important feature is that photoluminescence of BPTBTD shows stablity different at concentrations solid states. Red were fabricated facile...

10.1039/b719390d article EN Journal of Materials Chemistry 2008-01-01

A new series of oxadiazole derivatives TPO, PPO, MTPO, MPPO, BTPO, and BPPO have been designed synthesized in high yields by a convenient synthetic procedure. single crystal structure TPO exhibited that this polyphenylene-dendronized material has sterically crowded which efficiently prevents π–π stacking endows it with good thermal stability. The photophysical properties the materials show strong emission between 376 390 nm films. In addition, reversible reductive waves cyclic voltammograms...

10.1039/b705515c article EN Journal of Materials Chemistry 2007-01-01

Land surface phenology (LSP) is a sensitive indicator of climate change. Understanding the variation in LSP under various impacts can improve our knowledge on ecosystem dynamics and biosphere-atmosphere interactions. Over recent decades, derived from remote sensing data change-related have been widely reported at regional global scales. However, smoothing methods vegetation index (i.e., NDVI) are diverse, discrepancies among may result different results. Additionally, affected by change...

10.3390/ijgi7110451 article EN cc-by ISPRS International Journal of Geo-Information 2018-11-19

Highlights•Obesity modulates LBC TME and impacts patient prognosis•Obesity biological features plus clinicopathology better predict recurrence risk•Exploring molecular immunological as key regulatorsSummaryDespite adjuvant chemotherapy endocrine therapy in luminal breast cancer (LBC), relapses are common. Addressing this, we aim to develop a prognostic model refine strategies, particularly for patients at high risk. Notably, obesity profoundly affects the tumor microenvironment (TME) of LBC....

10.1016/j.isci.2024.109133 article EN cc-by-nc-nd iScience 2024-02-06

Abstract The hydrothermal reactions of La2O3, Zn(CH3COO)2·2H2O, iminodiacetic acid (H2IDA), and H2O resulted in the formation a novel coordination polymers [LaZn(HIDA)(IDA)2·0.5H2O]n. X-ray diffraction analyses confirms that complexe 1 La ions are lined through sharing O atoms IDA ligands which octahedron-coordinated Zn beside alternately to form 1-D zigzag inorganic chain. And then 2-D layered polymer is constructed by helix bridging protonated HIDA ligands.

10.1246/cl.2004.446 article EN Chemistry Letters 2004-03-20

Highly efficient light-emitting materials can be archived by a rational design that involves rigid dendron and π-conjugated chromophores. This strategy is exemplified three unsymmetrical dendrimers 5-(2′,3′,4′,5′-tetraphenyl)phenyl-5′-(9- anthracenyl)-2,2′-bithiophene (1), 5-(2′,3′,4′,5′-tetraphenyl)phenyl-5′-(1-pyrenyl)-2,2′ -bithiophene (2), 5-(2′,3′,4′,5′-tetraphenyl)phenyl-5′-(1-pyrenylethynyl)-2,2′- bithiophene (3). Thermogravimetric analysis differential scanning calorimetry suggest 1...

10.1021/jp801613v article EN The Journal of Physical Chemistry C 2008-08-01
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