Hang Han

ORCID: 0000-0001-6833-9543
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About
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Research Areas
  • Photosynthetic Processes and Mechanisms
  • Plant Water Relations and Carbon Dynamics
  • Radical Photochemical Reactions
  • Catalytic C–H Functionalization Methods
  • Fluorine in Organic Chemistry
  • Plant Stress Responses and Tolerance
  • Plant responses to elevated CO2
  • Click Chemistry and Applications
  • Mass Spectrometry Techniques and Applications
  • Algal biology and biofuel production
  • Date Palm Research Studies
  • Heavy Metals in Plants
  • Plant responses to water stress
  • Advanced Proteomics Techniques and Applications
  • Heavy metals in environment
  • Sulfur-Based Synthesis Techniques
  • Cyclopropane Reaction Mechanisms
  • Synthesis and Reactions of Organic Compounds
  • Oxidative Organic Chemistry Reactions
  • Smart Agriculture and AI
  • Synthesis and Biological Evaluation
  • Metabolomics and Mass Spectrometry Studies
  • Tree-ring climate responses
  • Seed Germination and Physiology
  • Allelopathy and phytotoxic interactions

Zhejiang University of Technology
2020-2023

Minzu University of China
2021-2022

State Ethnic Affairs Commission
2022

China Agricultural University
2019

Fujian Agriculture and Forestry University
2018

Visible light-induced perfluoroalkylation of [1.1.1]propellane provides a sustainable way to incorporate perfluoroalkyl-substituted BCPs into various heterocycles.

10.1039/d2gc04683k article EN Green Chemistry 2023-01-01

To our knowledge, this was the first study in which caffeic acid (CA) successfully evaluated as a matrix to enhance situ detection and imaging of endogenous proteins three biological tissue sections (i.e., rat brain Capparis masaikai germinating soybean seeds) by matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MSI). Our results show several properties CA, including strong ultraviolet absorption, super-wide MS range close 200,000 Da, micrometer-sized crystals, uniform...

10.1021/acs.analchem.0c05480 article EN Analytical Chemistry 2021-08-18

A novel synthesis of 1-azido-3-heteroaryl bicyclo[1.1.1]pentanes has been achieved via azidoheteroarylation [1.1.1]propellane under mild and metal-free conditions. It provides a highly efficient route to construct azide-containing BCPs.

10.1039/d1gc03126k article EN Green Chemistry 2021-01-01

Abstract A copper‐catalyzed cyclization reaction of 2‐(3‐arylpropioloyl)benzaldehydes was developed, leading to benzylated 1,4‐naphthoquinones via radical‐triggered cascade cyclization. This example an acylbenzylation involving internal alkynes could be carried out with a broad substrate scope and wide functional group tolerance. magnified image

10.1002/adsc.202000975 article EN Advanced Synthesis & Catalysis 2020-10-29

Ammopiptanthus mongolicus is the only evergreen broad-leaved shrub present in arid areas of Northwest China and plays an important role maintaining stability local desert ecosystem. It can survive under extreme temperatures (e.g., low temperature: - 24.8 °C high 37.7 °C). To understand gene expression-physiological regulation network A. temperature environments, we monitored changes expression photosynthetic traits leaves. The results showed that at temperatures, net rates (A), Fv'/Fm'...

10.1038/s41598-022-14402-8 article EN cc-by Scientific Reports 2022-06-23

The survival and performance of urban forests are increasingly challenged by drought, consequently compromising the sustainability functionality vegetation. Plant-water relations largely determine species drought tolerance, yet little is known about hydraulics forest species. Here, we report leaf hydraulic carbon traits that govern plant growth resistance, including vulnerability to embolism, conductivity gas exchange characteristics, as well morphological potentially linked with these...

10.1093/treephys/tpac003 article EN Tree Physiology 2022-01-13

Herein, we report a metal-free intramolecular carbofluorination protocol for the synthesis of tetrasubstituted monofluoroalkenes from internal α,β-ynones and Selectfluor with both high stereoselectivity broad functional group tolerance. The chelation between tetrafluoroborate anion oxygen present in aldehyde rendered reaction highly stereoselective, serving as direct fluorine source. Therefore, addition sodium tetrafluoroborate, could be reused several times without sacrificing reactivity.

10.1021/acs.orglett.1c01441 article EN Organic Letters 2021-05-24

Abstract Vegetables are one of the main crops in China, and pests important factors affecting quality vegetables. In order to improve recognition accuracy vegetable pest images, a image method based on improved VGG convolution neural network is proposed. Based VGG16 VGG19 models, optimizes number full connection layers, replaces original SoftMax classifier VGGNet with three-label classifier, structure parameters model, uses weight layer pooling pre-training model transfer learning....

10.1088/1742-6596/1237/3/032018 article EN Journal of Physics Conference Series 2019-06-01

Abstract Ammopiptanthus mongolicus is an evergreen broad-leaved shrub living in plateau cold desert ecosystem, which with remarkable tolerance to diverse abiotic stresses. We measured the photosynthetic physiological indexes of A. mongolicus. under extreme seasonal climate field, and analyzed transcriptome its leaves. found that gene expression at level have significant characteristics when temperature changes. Under low condition, consumes excess light energy by increasing PSII...

10.21203/rs.3.rs-1265088/v1 preprint EN cc-by Research Square (Research Square) 2022-02-03
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