132 Result(s)
within
Si-**an Wang
Chemistry
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Article
Simplified p-i-n Perovskite Solar Cells with a Multifunctional Polyfullerene Electron Transporter
In prevailing p-i-n perovskite solar cells (PSCs), solution-processible fullerene molecules are widely used as electron-transporting layers (ETLs) but they typically suffer from poor uniformity and undesirable...
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Open AccessCold exposure-induced plasma exosomes impair bone mass by inhibiting autophagy
Recently, environmental temperature has been shown to regulate bone homeostasis. However, the mechanisms by which cold exposure affects bone mass remain unclear. In our present study, we observed that exposure...
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Article
Visualizing the structural evolution of individual active sites in MoS2 during electrocatalytic hydrogen evolution reaction
Understanding the structural evolution of individual active sites during a reaction is a long-standing target in surface science and catalysis. It is still challenging to precisely characterize in situ the int...
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Research on Bast Fiber Extracted from the White Bark of Three Species in the Genus Broussonetia
Against the backdrop of a global paper resource shortage, there is a growing need to identify fast-growing tree species capable of producing long-lasting paper. Three plant species namely Broussonetia kazinoki, B...
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Cotton fiber-based 1D nanocomposite: a new type of flexible wire for cryogenic electrical system
In response to the problem of poor flexibility of common one-dimensional flexible conductors at low temperatures, this paper proposed a one-dimensional flexible conductive composite material with cotton fiber ...
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Article
Adsorption performance of cadmium (II) on calcined hydrotalcite
A series of calcined hydrotalcite were prepared via natural hydrotalcite (Mg6Al2(OH)16CO3·4H2O) calcined at 200, 400, 600, and 800 °C. The potential use of calcined hydrotalcite as adsorbent for the recovery of C...
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Open AccessEngineering Escherichia coli for high-yielding 2,5-Dimethylpyrazine synthesis from L-Threonine by reconstructing metabolic pathways and enhancing cofactors regeneration
2,5-Dimethylpyrazine (2,5-DMP) is important pharmaceutical raw material and food flavoring agent. Recently, engineering microbes to produce 2,5-DMP has become an attractive alternative to chemical synthesis ap...
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Programmable late-stage functionalization of bridge-substituted bicyclo[1.1.1]pentane bis-boronates
Modular functionalization enables versatile exploration of chemical space and has been broadly applied in structure–activity relationship (SAR) studies of aromatic scaffolds during drug discovery. Recently, th...
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Boosting thermal stability and crystallization of closed-loop-recyclable biodegradable poly(p-dioxanone) by end-group regulation
A chemically closed-loop-recyclable biodegradable polymer, poly(p-dioxanone) (PPDO), is one of the ideal candidates for single-use plastic products due to its suitability for different application scenarios. Fasc...
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A Multi-response Sensor Based on a Bat-like Zn(II) Coordination Polymer: Synthesis, Structure and ‘turn off’ Sensing of TC, Fe3+ and AA in Aqueous System
A new 2D homochiral zinc coordination polymer (Zn-CP) with 52-member rings was synthesized by solvothermal method. X-ray single crystal diffraction results show that the initial ligand (H2ibga = (4-(1 H-imidazol-...
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Responsive Hybrid Poly(vinyl alcohol) Hydrogel Membranes with Embedded Microgels as Valves
The research and application of responsive materials have long been hampered by their complicated designs and tedious construction processes. Besides, many current responsive materials show retard or weak resp...
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Article
Inhibition of cell proliferation of iridium(III) polypyridyl complexes on osteosarcoma U2OS cells through PI3K/AKT/mTOR pathway
In this article, three iridium(III) complexes [Ir(bzq)2(NPIP)](PF6) (NPIP = 2-nitrophenyl-1H-imidazo[4,5-f][1,10]phenanthroline) (Ir1), [Ir(bzq)2(MNPIP)](PF6) (MNPIP = 3-nitrophenyl-1H-imidazo[4,5-f][1,10]phenant...
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Accessing three-dimensional molecular diversity through benzylic C–H cross-coupling
Pharmaceutical discovery efforts rely on robust synthetic methods that rapidly access diverse molecules. Cross-coupling reactions are the most widely used reactions, but these methods typically form bonds with C(
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Engineering of a novel D–A type fluorophore with hydrogen bond-induced enhanced emission property for sensitively detecting endogenous HOCl in living cells and tissues
Fluorescence imaging has been widely employed for biomedical research and clinical diagnostics. With ease of synthesis and excellent photophysical properties, D–A type fluorophores are widely designed for fluo...
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Construction of cellulose-based highly sensitive extended-gate field effect chiral sensor
Chiral recognition is an emerging field of modern chemical analysis, and the development of health-related fields depends on the production of enantiomers. Cellulose is a kind of natural polymer material with ...
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Article
Stilbene Derivatives from Bletilla striata and Their Antiviral Activity
Two new (1 and 2), together with five known (3–7) stilbene derivatives, were isolated from the tubers of Bletilla striata. The structures of these new compounds were elucidated by means of spectroscopic methods, ...
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Chemically recyclable copolyesters from bio-renewable monomers: controlled synthesis and composition-dependent applicable properties
The development of chemically recyclable polymers is a promising solution to address the dual challenges of the environment and resources caused by petroleum-based plastics. Despite recent advancements, it is ...
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A dual-switching spin-crossover framework with redox regulation and guest response
A dual-switching spin crossover metal-organic framework (SCO-MOF) [Fe(TPB){PtII(CN)4}]·3iPrOH·4H2O (TPB = 1,2,4,5-tetra(pyridin-4-yl)benzene) is developed via the combination of redox-active framework and tunable...
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Article
Bioactive Indole Alkaloids from the Tobacco-Derived Endophytic Fungus Aspergillus fumigatus
Two new indole alkaloids, 1-(5-prenyl-1H-indol-3-yl)propan-2-one (1) and 1-(6-methoxy-5-prenyl-1H-indol-3-yl)propan-2-one (2), along with five known ones (3–7) were isolated from the fermentation products of a ci...
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Chromones from the Tobacco Derived Fungus Aspergillus versicolor and Their Antiviral Activity
Two new chromones, 8-(3-hydroxypropyl)-2-(3-hydroxy-1-oxopropyl)-6-methoxy-4H-chromen-4-one (1), 2-acetyl-8-(3-hydroxypropyl)-6-methoxy-4H-chromen-4-one (2), along with four known ones (3–6) were isolated from th...
