A5100633555- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Supramolecular Chemistry and Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Porphyrin and Phthalocyanine Chemistry
- Advanced Photocatalysis Techniques
- Supramolecular Self-Assembly in Materials
- Covalent Organic Framework Applications
- Asymmetric Synthesis and Catalysis
- Organic Chemistry Cycloaddition Reactions
- 2D Materials and Applications
- MXene and MAX Phase Materials
- Soil erosion and sediment transport
- Graphene research and applications
- Polyoxometalates: Synthesis and Applications
- EEG and Brain-Computer Interfaces
- Electrocatalysts for Energy Conversion
- Optical Imaging and Spectroscopy Techniques
- Oxidative Organic Chemistry Reactions
- Catalytic C–H Functionalization Methods
- Transition Metal Oxide Nanomaterials
- Perovskite Materials and Applications
- Crystallography and molecular interactions
Xi'an Jiaotong University
2023-2025
Guangdong Academy of Medical Sciences
2023-2025
Liaocheng University
2025
Southern Medical University
2025
Guangdong Provincial People's Hospital
2025
Xinxiang University
2022-2024
Northwest University
2016-2024
Yunnan University
2021-2024
East China Jiaotong University
2024
Jiangnan University
2024
MicroRNA exhibits differential expression levels in cancer and can affect cellular transformation, carcinogenesis metastasis. Although fluorescence techniques using dye molecule labels have been studied, label-free molecular-level quantification of miRNA is extremely challenging. We developed a surface plasmon resonance sensor based on two-dimensional nanomaterial antimonene for the specific detection clinically relevant biomarkers such as miRNA-21 miRNA-155. First-principles energetic...
Here we report one-pot synthesis of tetraphenylethene-based tetracationic dicyclophane (1) and its self-assembly behaviors with aggregation-induced emission (AIE) light-harvesting function. Confirmed by X-ray crystal structure high resolution transmission electron microscopy, this can self-assemble into a 3D supramolecular framework to form crystalline nanospheres (2) finally, which exhibits strong (ΦF = 97.7%) via AIE effect in aqueous solution. Interestingly, AIE-active 2 as...
Two kinds of shape-controllable and fluorescent supramolecular organic frameworks (cuboid or spheroid) are constructed hierarchically from CB[8] tetraphenylethylene derivatives through host-guest interaction in water. These two SOFs exhibit intriguing varied photophysical properties, including large red-shifts (up to 82 nm) stimuli-responsive behavior competitive guest by binding with CB[8], the turn-on fluorescence which is applied cellular imaging.
We report the synthesis and characterization of a three-dimensional tetraphenylethene-based octacationic cage that shows host-guest recognition polycyclic aromatic hydrocarbons (e.g. coronene) in organic media water-soluble dyes sulforhodamine 101) aqueous through CH⋅⋅⋅π, π-π, and/or electrostatic interactions. The cage⊃coronene exhibits cuboid internal cavity with size approximately 17.2×11.0×6.96 Å3 "hamburger"-type complex, which is hierarchically stacked into 1D nanotubes 3D...
Abstract Chiral framework materials have been developed for many applications including chiral recognition, separation, asymmetric catalysis, and chiroptical materials. Herein, we report that an achiral cucurbit[8]uril‐based supramolecular organic ( SOF‐1 ) with the dynamic rotational conformation of tetraphenylethene units can exhibit adaptive chirality to produce M ‐ or P mirror‐image circular dichroism (CD) g abs ≈±10 −4 circularly polarized luminescence (CPL) lum induced by L ‐/ D...
Supramolecular coordination is an efficient strategy to construct supramolecular frameworks with predesigned structures, assembled shapes, and specific function. In this work, we report the synthesis, structural characterization, photophysical property of two tetraphenylethene-based 1a 1b formed from 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethene (2a) or 1,1,2,2-tetrakis(4-((E)-2-(pyridin-4-yl)vinyl)phenyl)ethene (2b) a linear difunctional platinum(II) ligand (3a) via coordination-driven...
Herein, we report an achiral anthracene-based tetracationic nanotube (1⋅4Cl- ) that shows two levels of supramolecular chirality: namely, conformationally adaptive host-guest complexation with nucleoside triphosphates (e.g. ATP, GTP, CTP, and UTP) twisted packing the chiral complexes in water. Interestingly, 1⋅4Cl- exhibits recognition for ATP/GTP CTP/UTP through structural transformation its intramolecular M- P-twisted conformation as first level chirality, which leads to chirality opposite...
The novel selenoviologen-based tetracationic cyclophanes (green boxes 3 and 5) with rigid electron-deficient cavities are synthesized via SN2 reactions in two steps. green exhibit good redox properties, narrow energy gaps, strong absorption the visible range (370-470 nm), especially for box 5 containing selenoviologen (SeV2+) units. Meanwhile, femtosecond transient (fs-TA) reveals that have a stabilized dicationic biradical, high efficiency of intramolecular charge transfer (ICT), long-lived...
Chiral induction by natural biomolecules can reveal the indispensable role of chiral structures in life and be used to develop chirality-sensing biomolecular recognition. Here, we present synthesis characterization an achiral supramolecular organic framework (SOF-1) constructed from cucurbit[8]uril (CB[8]) hexaphenylbenzene (HPB) derivative (1) water. Due propeller-like rotational conformation HPB units specific recognition properties CB[8], SOF-1 demonstrates adaptive water when interacting...
Open AccessCCS ChemistryRESEARCH ARTICLE1 Nov 2021Adaptive Chirality of an Achiral Cage: Transfer, Induction, and Circularly Polarized Luminescence through Aqueous Host–Guest Complexation Lin Cheng†, Kai Liu†, Yanjuan Duan, Honghong Yawen Li, Meng Gao Liping Cao Cheng† Key Laboratory Synthetic Natural Functional Molecule the Ministry Education, College Chemistry Materials Science, Northwest University, Xi'an 710069 , Liu† Institute Marine Drugs, Guangxi University Chinese Medicine, Nanning...
Abstract A series of sulfur‐bridged 2,2′‐viologens, 2,2′‐thienoviologens (2,2′‐SV 2+ ) with propyl bridge and hydroxyl bridges, are synthesized for the first time. The exhibited improved visible‐light absorption, narrow energy gap, more negative reduction potential (160 mV lower than 4,4′‐thienoviologens) stable free radical states compared 4,4′‐thienoviologens parent 2,2′‐viologens. utilization femtosecond transient absorption (fs‐TA) demonstrated that 2,2′‐thienoviologen can produce...
Abstract The asymmetric epoxidation of electron‐deficient olefins has been achieved using inexpensive and readily available prolinols as catalysts with good to excellent yields enantioselectivities. utility the resulting chiral epoxides was illustrated by elaboration several synthetically useful compounds featuring a concise synthesis (−)‐(5 R ,6 S )‐balasubramide.
As the cucurbit[n]uril (CB[n]) homologue with largest cavity size, cucurbit[10]uril (CB[10]) can encapsulate big guests to form interesting host–guest complexes/assemblies. Herein, we report preparation and fluorescence properties of CB[10]-based [2]rotaxane (CB[10]·1) formed from dumbbell-like guest 1. This is assembled by C═O···N+ ion–dipole interactions between oxygen atoms carbonyl fringed portals CB[10] positively charged pyridinium units 1 via slipping method under heating at 95 °C in...
Abstract Here, a series of shape‐controllable and fluorescent supramolecular organic frameworks (SOFs) exhibiting aggregation‐induced emission (AIE) are reported as new kind tunable luminescent material, constructed hierarchically from guests (1–5) cucurbit[8]uril (CB[8]) through homo/hetero host–guest complexation in water. These SOFs can further form regular cuboids via hierarchical assembly process the solid state. Interestingly, hetero‐SOFs systems AIE, which combination two or three...
The 2D semiconductor indium selenide (InSe) has attracted significant interest due its unique electronic band structure, high electron mobility, and wide tunability of gap energy achieved by varying the layer thickness. All these features make InSe a potential candidate for advanced optoelectronic applications. Here, discovery new polymorphs with enhanced properties is reported. Using global structure search that combines artificial swarm intelligence first-principles energetic calculations,...
Two TPE-based tetracationic dicyclophanes <bold>1</bold> and <bold>2</bold> exhibited a classic AIE but contrasting mechanochromic luminescence under grinding or hydrostatic pressure in solid state, photochemical reactions induced by photoirradiation solution state.
Two-dimensional (2D) graphene-like layered semiconductors provide a new platform for materials research because of their unique mechanical, electronic and optical attributes. Their in-plane covalent bonding dangling-bond-free surface allow them to assemble various van der Waals heterostructures (vdWHSs) with sharply atomic interfaces that are not limited by lattice matching material compatibility. Interlayer coupling, as ubiquitous phenomenon residing among 2D (2DMs) systems, controls thin...
Abstract The relationship between exercise and stroke recurrence is controversial. This study was designed to test whether an association exists ischemic in first-ever survivors. Data were collected from January 2010 June 2016. Baseline information obtained during face-to-face interviews, follow-up phone interviews conducted every 3 months. Exercise type, frequency, intensity, duration recorded. Discrete-time survival analysis used determine the recurrence. 760 survivors who able enrolled....
In many critical biological processes, host-guest chemistry of protein receptors is regulated by effector molecules to realize cascaded delivery messenger between different targets. Mimicking these natural processes with artificial remains a challenge. Herein, we report guest two anionocages (anion-coordination-driven cages), in reversible manner, wherein binding K+ ions crown ether functionalized, heteroleptic A2 L3 (A=anion, L=ligand) anionocage triggers the release and TEA+...