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Juan Zheng

Researcher at Sun Yat-sen University

Publications -  126
Citations -  3209

Juan Zheng is an academic researcher from Sun Yat-sen University. The author has contributed to research in topics: Solid-phase microextraction & Chemistry. The author has an hindex of 27, co-authored 96 publications receiving 2213 citations. Previous affiliations of Juan Zheng include Texas A&M University & Union Hospital.

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New materials in solid-phase microextraction

TL;DR: A review of the most commonly used coating materials for solid phase microextraction (SPME) in the past five years can be found in this paper, where the authors discuss ionic liquids (ILs), polymeric ILs, graphene, carbon nanotubes, molecularly imprinted polymers and metal-organic frameworks.
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Newly diagnosed diabetes is associated with a higher risk of mortality than known diabetes in hospitalized patients with COVID-19.

TL;DR: To evaluate the association between different degrees of hyperglycaemia and the risk of all‐cause mortality among hospitalized patients with COVID‐19, a large number of patients were randomly assigned to receive either a high or a low dose of COVID.
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Fabrications of novel solid phase microextraction fiber coatings based on new materials for high enrichment capability

TL;DR: In this paper, a review summarizes the used materials for the fabrication of SPME coatings in the past five years, including carbon, polymer, metal organic frameworks (MOFs), covalent organic framework (COFs), ionic liquids (ILs), metal/metal oxide nanoparticles and silica.