Shuangshuang Cheng

ORCID: 0000-0003-3399-4446
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About
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Research Areas
  • Advanced oxidation water treatment
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Water Treatment and Disinfection
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Glycosylation and Glycoproteins Research
  • Advanced Photocatalysis Techniques
  • Water Quality Monitoring and Analysis
  • Biochemical and Structural Characterization
  • Immunodeficiency and Autoimmune Disorders
  • Peptidase Inhibition and Analysis
  • Metal complexes synthesis and properties
  • Soil Moisture and Remote Sensing
  • Chemical Synthesis and Analysis
  • Analytical chemistry methods development
  • NF-κB Signaling Pathways
  • Synthesis and biological activity
  • Atmospheric chemistry and aerosols
  • Nanoplatforms for cancer theranostics
  • High-Temperature Coating Behaviors
  • GNSS positioning and interference
  • Protein purification and stability
  • Metabolomics and Mass Spectrometry Studies
  • Chronic Lymphocytic Leukemia Research
  • Neuroendocrine Tumor Research Advances

First Affiliated Hospital of Anhui Medical University
2017-2025

Anhui Medical University
2017-2025

Beijing Jingshida Electromechanical Equipment Research Institute
2025

Sun Yat-sen University
2017-2024

Hebei University of Science and Technology
2024

National Space Science Center
2022-2023

Chinese Academy of Sciences
2023

Huazhong University of Science and Technology
2022

Union Hospital
2022

South China Normal University
2021

Cl• and Cl2•- radicals contribute to the degradation of trace organic contaminants (TrOCs) such as pharmaceutical personal care products endocrine-disrupting chemicals. However, little is known about their reaction rate constants mechanisms. In this study, with 88 target compounds were determined using laser flash photolysis. Decay kinetics, product buildup competition kinetics applied track changes in transient spectra. exhibited quite high reactivity toward TrOCs ranging from 3.10 × 109...

10.1021/acs.est.9b02462 article EN Environmental Science & Technology 2019-09-04

Advanced oxidation processes (AOPs) are increasingly applied in water and wastewater treatment. Understanding the role of reactive species using probes quenchers is one main requirements for good process design. However, much fundamental kinetic data reactions with lacking, probably leading to inappropriate probe quencher selection dosing. In this work, second-order rate constants over 150 such as •OH, SO4•-, Cl• chemical oxidants free chlorine persulfate were determined. Some previously...

10.1021/acs.est.2c09338 article EN Environmental Science & Technology 2023-03-17

This study investigated the role of bromide ions in degradation nine pharmaceuticals and personal care products (PPCPs) during UV/chlorine treatment simulated drinking water containing 2.5 mgC L−1 natural organic matter (NOM). The kinetics contributions from UV irradiation oxidation by free chlorine, bromine, hydroxyl radical reactive halogen species were evaluated. observed loss rate constants PPCPs presence 10 μM 1.6–23 times those absence (except for iopromide ibuprofen). Bromide was...

10.1021/acs.est.7b03268 article EN Environmental Science & Technology 2018-01-17

Bromine radicals can pose great impacts on the photochemical transformation of trace organic contaminants in natural and engineered waters. However, reaction kinetics mechanisms involved are barely known. In this work, second-order rate constants with Br• Br2•– were determined for 70 common 17 model compounds using laser flash photolysis steady-state competition kinetics. The kBr• values ranged from <108 to (2.86 ± 0.31) × 1010 M–1 s–1 kBr2•– <105 (1.18 0.09) 109 at pH 7.0. Six quantitative...

10.1021/acs.est.1c02313 article EN Environmental Science & Technology 2021-07-23

Dissolved organic matter (DOM) is a major scavenger of bromine radicals (e.g., Br• and Br2•-) in sunlit surface waters during oxidative processes used water treatment. However, the literature lacks quantitative measurements reaction rate constants between DOM information on extent to which these reactions form brominated byproducts. Based transient kinetic analysis with different fractions sources DOM, we determined for ranging from <5.0 × 107 (4.2 ± 1.3) 108 MC-1 s-1, are comparable those...

10.1021/acs.est.2c00549 article EN Environmental Science & Technology 2022-03-29

Endometrial cancer (EC) is one of the most common gynecological cancers. Ferroptosis a newly identified form cell death characterized by iron-dependent lipid peroxide accumulation. Circular RNAs (circRNAs) have emerged as critical regulators for development. However, circRNA-mediated modulation ferroptosis in EC yet to be clarified. In this study, we found that circRAPGEF5 expression was elevated tissues compared normal endometrial tissues. vitro and vivo functional analysis demonstrated...

10.1016/j.redox.2022.102493 article EN cc-by-nc-nd Redox Biology 2022-09-26

The presence of dissolved organic matter (DOM) is known to inhibit the degradation trace contaminants (TrOCs) in SO4•–-based advanced oxidation processes (AOPs) due filtering photochemically active light and radical scavenging effects. This study revealed an unexpected contribution for DOM nitroimidazoles (NZs) UV/persulfate AOP. apparent second-order rate constants NZs with SO4•– increased by 2.05 4.77 times different DOMs. increments were linearly related total electron capacity DOM....

10.1021/acs.est.1c04238 article EN Environmental Science & Technology 2021-10-22

Dissolved organic matter (DOM) has been known to inhibit the degradation of trace contaminants (TrOCs) in advanced oxidation processes but quantitative understanding is lacking. Adenine (ADN) was selected as a model TrOC due wide occurrence purine groups TrOCs and well-documented transient spectra its intermediate radicals. ADN presence DOM during UV/peroxydisulfate treatment quantified using steady-state photochemical experiments, time-resolved spectroscopy, kinetic modeling. The inhibitory...

10.1021/acs.est.1c04576 article EN Environmental Science & Technology 2021-11-08

Wastewater effluent is a major source of extracellular antibiotic resistance genes (eArGs) in the aquatic environment, threat to human health and biosecurity. However, little known about extent which organic matter wastewater (EfOM) might contribute photosensitized oxidation eArGs. Triplet states EfOM were found dominate degradation eArGs (accounting for up 85%). Photo-oxidation proceeded mainly via proton-coupled electron transfer reactions. They broke plasmid strands damaged bases. O2•–...

10.1021/acs.est.2c08036 article EN Environmental Science & Technology 2023-04-28

In cases of pneumococcal pneumonia, there is significant exposure the human airway epithelium to hydrogen peroxide (H2O2), a toxin secreted by pathogens. This can trigger oxidative stress and enhance vascular permeability, which may result in systemic bacteremia or sepsis. Drug delivery systems (DDSs) that respond H2O2 utilize amphiphilic polymers have attracted considerable interest. this study, we present an diblock copolymer (DPB) formed from poly(ethylene glycol) (PEG) H2O2-sensitive...

10.1021/acsanm.4c06222 article EN ACS Applied Nano Materials 2025-01-13

In this study, a method for predicting the thermal shock life of coatings is proposed, and model based on high temperature test three-dimensional heat transfer analysis established. Firstly, at different cooling heating cycle temperatures obtained through designed testing device silicide wide-temperature range from 500℃ to 3000℃. Secondly, actual thickness coating continuous oxidation in are taken into consideration. Based finite element method, with carried out obtain average value maximum...

10.1038/s41598-025-86966-0 article EN cc-by-nc-nd Scientific Reports 2025-01-24

Purines are the most widely occurring heterocyclic-N compounds. The degradation behaviors of purine derivatives, theophylline (TPL) and adenine (ADN) as representatives, in both single-component mixture systems during UV/peroxydisulfate (PDS) treatment were explored. In system when concentrations SO4•– HO• reduced by more than half comparison to a system, observed first-order rate constant TPL was 11%, whereas ADN almost completely inhibited. An "revert" pathway, that is, back transformation...

10.1021/acs.est.9b04974 article EN Environmental Science & Technology 2019-12-23
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