Jun Chen

ORCID: 0000-0003-2695-4673
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About
Contact & Profiles
Research Areas
  • Wastewater Treatment and Nitrogen Removal
  • Odor and Emission Control Technologies
  • Microbial Fuel Cells and Bioremediation
  • Microbial Community Ecology and Physiology
  • Industrial Gas Emission Control
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Microstructure and Mechanical Properties of Steels
  • Advanced oxidation water treatment
  • Higher Education and Teaching Methods
  • Metal Alloys Wear and Properties
  • Biofuel production and bioconversion
  • Catalytic Processes in Materials Science
  • Microbial bioremediation and biosurfactants
  • Water Quality Monitoring and Analysis
  • Ammonia Synthesis and Nitrogen Reduction
  • GABA and Rice Research
  • Phytochemistry and Biological Activities
  • Enzyme Production and Characterization
  • Microstructure and mechanical properties
  • Educational Technology and Assessment
  • Membrane Separation Technologies
  • Microbial Metabolic Engineering and Bioproduction
  • Legume Nitrogen Fixing Symbiosis
  • Enzyme Catalysis and Immobilization
  • Plant responses to water stress

Zhejiang Shuren University
2019-2025

Beijing University of Technology
2023-2025

Zhejiang University of Technology
2009-2024

Shanghai Eye Disease Prevention & Treatment Center
2024

Tongji University
2024

Northeastern University
2019-2024

Guangdong University of Technology
2024

Shenzhen University
2023

East China University of Science and Technology
2018-2023

Chongqing Jiaotong University
2023

Immense populations of viruses are present in the human gut and other body sites. Understanding role these (the “virome”) health disease requires a much deeper understanding their composition dynamics face environmental perturbation. Here, we investigate viromes from subjects on controlled feeding regimen. Longitudinal fecal samples were analyzed by metagenomic sequencing DNA virus-like particles (VLP) total microbial communities. Assembly 336 Mb VLP sequence yielded 7175 contigs, many...

10.1101/gr.122705.111 article EN cc-by-nc Genome Research 2011-08-31

Abstract The development of a multifunctional oil adsorbing material which could effectively and quickly separate oily wastewater is one the focuses in water environment restoration. In this study, bamboo charcoal (BC) was used as an improver to modify polyurethane (PU) foam. results scanning electron microscope (SEM) Fourier-transform infrared spectroscopy (FTIR) revealed that addition BC improve mechanical properties PU. adsorption data exhibited BC-loaded PU (BC/PU) foam composites...

10.1007/s42773-022-00153-2 article EN cc-by Biochar 2022-05-24

Megasphaera hexanoica is a bacterial strain following the reverse β-oxidation pathway to synthesize caproate (CA) using lactate (LA) as an electron donor (ED) and acetate (AA) or butyrate (BA) acceptors (EA). Differences in type concentration of EA lead distinctions product distribution energy bifurcation carbon fluxes ED pathways, thereby affecting CA production. In this study, effect various ratios AA, BA, AA+BA on flux specific titer during chain elongation M. was explored. The results...

10.1016/j.scitotenv.2023.169509 article EN cc-by-nc-nd The Science of The Total Environment 2023-12-22

Soil microbiota plays crucial roles in maintaining the health, productivity, and nutrient cycling of terrestrial ecosystems. The persistence prevalence heterocyclic compounds soil pose significant risks to health. However, understanding links between microbial responses remains challenging due complexity communities their various chemical structures. This study developed a machine-learning approach that integrates properties structures with diversity bacteria functions predict impact on...

10.1021/acs.est.4c09664 article EN Environmental Science & Technology 2025-01-11

Carbonic anhydrase (CA) enzyme-based absorption technology for CO2 capture has been intensively investigated. The main issue related to this novel is the activity and stability of CA enzyme under typical flue gas conditions. To address issue, enzymes were embedded into zeolitic imidazolate framework (ZIF-L) nanoparticles synthesize a CA/ZIF-L-1 composite. composite exhibited superior apparent catalytic (1.5 times higher) compared with their free counterparts, which was due synergistic...

10.1021/acs.est.8b04671 article EN Environmental Science & Technology 2018-10-12

Microbes of the human respiratory tract are important in health and disease, but accurate sampling lung presents challenges. Lung microbes commonly sampled by bronchoscopy, to acquire samples bronchoscope must pass through upper tract, which is rich microbes. Here we present methods identify authentic microbiota bronchoalveolar lavage (BAL) fluid that contains substantial oropharyngeal admixture. We studied clinical BAL from six selected subjects with potential heavy colonization. A single...

10.1371/journal.pone.0042786 article EN cc-by PLoS ONE 2012-09-06

Twin intersections have been reported to significantly impact on macroscopic properties by relaxing localized stress concentration and accommodating strain. Here the atomic-scale structural characterization of twin intersection region in a deformed high Mn twinning-induced plasticity (TWIP) steel was conducted using high-resolution transmission electron microscopy. Detailed microstructural features were revealed at region, including rotation, low angle grain boundary ε martensite. The...

10.1016/j.actamat.2024.119832 article EN cc-by-nc-nd Acta Materialia 2024-03-12

Ciprofloxacin (CIP), one of the most frequently detected antibiotics in water systems, has become an aquatic contaminant because improper disposal and excretion by humans animals. It is still unknown how trace amounts CIP affect microbial community diversity function. We therefore investigated effects on structure function freshwater communities via 16S/18S rRNA gene sequencing metatranscriptomic analyses. treatment (7 μg/L) did not significantly alter physical chemical condition body as...

10.1016/j.envint.2019.02.050 article EN cc-by-nc-nd Environment International 2019-02-27

This study aims to understand the effect of Domestic Emission Control Area (DECA) policy on ambient SO2 and particle components in Shanghai. Online single analysis measurements from 2015 2017 were compared analyze long-term variations before after DECA policy. Our showed that there was a significant decrease by 27-55% implementation The number fraction ship-emitted particles increased along with increase ship traffic activity, but tended contain lower-vanadium content. elemental carbon...

10.1021/acs.est.9b03315 article EN Environmental Science & Technology 2019-08-28

To mitigate the potential environmental risks caused by nitrogen compounds from industrial wastewater, residual ammonia after conventional wastewater treatment should be further eliminated. In this work, an electrochemical oxidation process for converting to in actual dyeing was investigated. The effects of main operating parameters, including initial pH value, applied current density, NaCl concentration, and flow, were investigated on removal products distribution. Experimental results...

10.3390/ijerph16162931 article EN International Journal of Environmental Research and Public Health 2019-08-15
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