Yunchuan Qi

ORCID: 0000-0002-3707-9504
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About
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Research Areas
  • Covalent Organic Framework Applications
  • Graphene and Nanomaterials Applications
  • Polymer composites and self-healing
  • Molecular Sensors and Ion Detection
  • Supramolecular Self-Assembly in Materials
  • Supercapacitor Materials and Fabrication
  • Advancements in Battery Materials
  • Luminescence and Fluorescent Materials
  • Polydiacetylene-based materials and applications
  • Nanomaterials for catalytic reactions
  • Bioactive Compounds and Antitumor Agents
  • Graphene research and applications
  • Inorganic and Organometallic Chemistry
  • Adsorption and biosorption for pollutant removal
  • Supramolecular Chemistry and Complexes
  • Chemical Reactions and Mechanisms
  • Photochromic and Fluorescence Chemistry
  • Advanced Chemical Sensor Technologies
  • Vibrio bacteria research studies
  • Membrane Separation Technologies
  • ZnO doping and properties
  • Chemical Reaction Mechanisms
  • Carbohydrate Chemistry and Synthesis
  • Burkholderia infections and melioidosis
  • Radical Photochemical Reactions

University of Massachusetts Lowell
2019-2025

Beijing Normal University
2016-2021

China Academy of Space Technology
2018-2019

Dynamic covalent polymers have emerged as intriguing, new materials with unique properties. In this article, their synthesis, properties, and applications in the biomedical field been reviewed.

10.1039/c9qm00598f article EN Materials Chemistry Frontiers 2019-12-03

Alternating macrocyclization and polymerization was observed in dynamic nitroaldol reaction systems. The of an aromatic dialdehyde reacting with linear α,ω‐dinitroalkanes even numbers carbon atoms favored the formation lowellane macrocycles, while reactions involving dinitrocompounds consisted odd promoted polymerization. folding patterns alkyl chains played important factor determining outcome reactions.

10.1002/chem.202404720 article EN Chemistry - A European Journal 2025-04-07

10.1557/jmr.2018.110 article EN Journal of materials research/Pratt's guide to venture capital sources 2018-05-11

Abstract Dynamic covalent polymers of different topology have been synthesized from an aromatic dialdehyde and α,ω‐dinitroalkanes via the nitroaldol reaction. All dinitroalkanes yielded dynamers with dialdehyde, where length dinitroalkane chain played a vital role in determining structure final products. For longer dinitroalkanes, linear were produced, degree polymerization reached plateau at higher feed concentrations. In reactions involving 1,4‐dinitrobutane 1,5‐dinitropentane, specific...

10.1002/chem.202201863 article EN cc-by Chemistry - A European Journal 2022-08-16

The Gram-negative, opportunistic pathogen Pseudomonas aeruginosa has become a serious threat to global health, with increasing resistance towards even the most potent antibiotics. Like other bacteria, produces number of virulence factors that promote its pathogenicity. Of these, metallophores constitute an important group, able scavenge metal ions from surrounding environment secure metabolic functions bacterium. Pseudomonads produce iron-chelating metallophore (siderophore) pyochelin (PCH),...

10.26434/chemrxiv-2024-v4rdx preprint EN cc-by-nc-nd 2024-05-21

Dynamic covalent gels are synthesized from an aromatic trialdehyde and α,ω-dinitroalkanes via the nitroaldol reaction in organic solvents. The gelation process can be fine-tuned by changing starting nitroalkanes, solvents, feed concentration, catalyst loading, or temperature. resulting organogels demonstrate good structural integrity excellent self-healing ability. Intact xerogels produced upon drying, without damaging network, solvent-free network recover its gel form presence of solvent....

10.1002/marc.202300011 article EN cc-by-nc-nd Macromolecular Rapid Communications 2023-04-02

Through a dynamic polymerization and self-sorting process, range of lowellane macrocycles have been efficiently generated in nitroaldol systems composed aromatic dialdehydes aliphatic or dinitroalkanes. All identified show composition two repeating units, resulting tetra-β-nitroalcohols different structures. The effects building block structure on the macrocyclization process demonstrated, influence from solvent has explored. In general, formation lowellanes were amplified response to...

10.26434/chemrxiv-2023-cstwn preprint EN cc-by-nc-nd 2023-09-13

Abstract Complex dynamic systems displaying interdependency between nitroaldol and boronic ester reactions have been demonstrated. Nitroalkane‐1,3‐diols, generated by the reaction, were susceptible to formation with different acids in aprotic solvents, whereas hydrolysis of esters occurred presence water. The led significant stabilization adducts under basic conditions. use bifunctional building blocks was furthermore established, allowing for main chain nitroaldol‐boronate dynamers as well...

10.1002/chem.202402409 article EN cc-by-nc-nd Chemistry - A European Journal 2024-08-26

The opportunistic pathogen Pseudomonas aeruginosa develops increasing resistance toward even the most potent antibiotics. Like other bacteria, produces a number of virulence factors including metallophores, which constitute an important group. Pseudomonads produce iron-chelating metallophore (siderophore) pyochelin, which, in addition to its iron-scavenging ability, is effector for transcriptional regulator PchR FeIII-bound form (ferripyochelin). In present study, docking studies predicted...

10.1021/acsinfecdis.4c00421 article EN ACS Infectious Diseases 2024-10-29

Alternating macrocyclization and polymerization was observed in dynamic nitroaldol reaction systems. The of an aromatic dialdehyde reacting with linear α,ω-dinitroalkanes even numbers carbon atoms favored the formation lowellane macrocycles, while reactions involving dinitrocompounds consisted odd promoted polymerization. folding patterns alkyl chains played important factor determining outcome reactions.

10.26434/chemrxiv-2024-nwffp preprint EN cc-by-nc-nd 2024-12-18

Abstract The Burkholderia genus encompasses multiple human pathogens, including potential bioterrorism agents, that are often extensively antibiotic resistant. FixLJ pathway in is a two-component system regulates virulence. Previous work showed fixLJ mutations arising during chronic infection confer increased virulence while decreasing the activity of pathway. We hypothesized small-molecule activators could serve as anti-virulence therapies. Here, we developed high-throughput assay screened...

10.1101/2023.12.02.569726 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2023-12-02

Through a dynamic polymerization and self-sorting process, range of lowellane macrocycles have been efficiently generated in nitroaldol systems composed aromatic dialdehydes aliphatic or dinitroalkanes. All identified show composition two repeating units, resulting tetra-β-nitroalcohols different structures. The effects the building block structure on macrocyclization process demonstrated, influence from solvent has explored. In general, formation lowellanes was amplified response to...

10.1021/acs.joc.3c02148 article EN The Journal of Organic Chemistry 2023-12-28

Dynamic covalent polymers of different topology have been synthesized from an aromatic dialdehyde and α,ω-dinitroalkanes via the nitroaldol reaction. All dinitroalkanes yielded dynamers with dialdehyde, where length dinitroalkane chain played a vital role in determining structure final products. For longer dinitroalkanes, linear were produced, degree polymerization reached plateau at higher feed concentrations. In reactions involving 1,4-dinitrobutane 1,5-dinitropentane, specific macrocycles...

10.26434/chemrxiv-2022-0xc40 preprint EN cc-by-nc-nd 2022-05-23

Dynamic covalent gels have been synthesized from an aromatic trialdehyde and α,ω-dinitroalkanes via the nitroaldol reaction in organic solvents. The gelation process could be finetuned by changing starting nitroalkanes, solvents, feed concentration, catalyst loading, or temperature. resulting organogels demonstrated good structural integrity excellent self-healing ability. Intact xerogels were produced upon drying, without damaging network, solvent-free network recover its gel form presence...

10.26434/chemrxiv-2022-djr5h preprint EN cc-by-nc-nd 2022-12-30

Complex dynamic systems displaying interdependency between nitroaldol and boronic ester reactions have been demonstrated. Nitroalkane-1,3-diols, generated by the reaction, were susceptible to formation with different acids in aprotic solvents, whereas hydrolysis of esters occurred presence water. The led significant stabilization adducts under basic conditions. use bifunctional building blocks was furthermore established, allowing for main chain nitroaldol-boronate dynamers as well complex...

10.26434/chemrxiv-2021-6kzlt preprint EN cc-by-nc-nd 2021-12-21
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