A5045516494- Metal-Organic Frameworks: Synthesis and Applications
- Supramolecular Self-Assembly in Materials
- Photochromic and Fluorescence Chemistry
- Covalent Organic Framework Applications
- Luminescence and Fluorescent Materials
- Nanoplatforms for cancer theranostics
- Supramolecular Chemistry and Complexes
- Advanced Chemical Sensor Technologies
- Gas Sensing Nanomaterials and Sensors
- Molecular Sensors and Ion Detection
- Advanced Photocatalysis Techniques
- Intracranial Aneurysms: Treatment and Complications
- Dye analysis and toxicity
- Membrane Separation and Gas Transport
- Topic Modeling
- Network Security and Intrusion Detection
- Nanoparticle-Based Drug Delivery
- Machine Learning in Materials Science
- Analytical Chemistry and Sensors
- Video Surveillance and Tracking Methods
- Porphyrin and Phthalocyanine Chemistry
- User Authentication and Security Systems
- Internet Traffic Analysis and Secure E-voting
- Micro and Nano Robotics
- Membrane Separation Technologies
Tianjin University
2023-2024
Karlsruhe Institute of Technology
2020-2023
National Engineering Research Center for Nanotechnology
2023
University of Michigan
2020
East China Normal University
2018-2019
The removal of heavy-metal ions from wastewater has drawn intense attention, because their toxicity, bioaccumulation tendency, and persistency in nature. Adsorption is regarded as one the most promising methods, its simplicity efficiency. In present work, we report preparation a novel EDTA-functionalized covalent organic framework (COF) for ions. First, COF named TpPa-NO2 was reduced to TpPa-NH2 by using Na2S2O4 reductant, then EDTA dianhydride grafted onto obtain TpPa-NH2@EDTA through...
A novel covalent organic framework (COF) IISERP-COOH-COF1 membrane with both high water permeance and ions rejection was developed for desalination through post-modification, which shows superior based on size exclusion.
Molecular machines and responsive materials open a plethora of new opportunities in nanotechnology. We present an oriented crystalline array diarylethene (DAE)-based photoactuators, arranged way to yield anisotropic response. The DAE units are assembled, together with secondary linker, into monolithic surface-mounted metal-organic framework (SURMOF) film. By Infrared (IR) UV/Vis spectroscopy as well by synchrotron X-ray diffraction, we show that the light-induced extension changes molecular...
A sensor array (or e-nose) made of nanoporous metal–organic framework films filled with different ionic liquids shows high selectivity and sensitivity as well a very low limit detection for various common gases vapors, especially CO 2 .
Abstract The unambiguous detection and classification of volatile organic compounds (VOCs) are crucial in many fields. For using VOC‐sensing to explore the alteration spoilage food, very inexpensive sensors desired. Simple colorimetric seem highly attractive for these applications. Here, a label‐free, sensor array made metal‐organic‐framework‐based (MOF‐based) Fabry‐Pérot (FP) films is presented where signal read‐out performed either by their optical spectra or pictures taken with smartphone...
A novel photo-switchable Cu(AzDC)(4,4′-BPE)<sub>0.5</sub> membrane was developed with the H<sub>2</sub>/CO<sub>2</sub> separation factor being switched reversibly between 21.3 and 43.7 after irradiation Vis light (455 nm) UV (365 nm).
The preparation of functional materials from photoswitchable molecules where the molecular changes multiply to macroscopic effects presents a great challenge in material science. An attractive approach is incorporation photoswitches nanoporous, crystalline metal–organic frameworks, MOFs, often showing remote-controllable chemical and physical properties. Because short light-penetration depth, thin MOF films are particularly interesting, allowing entire illumination material. In present...
Abstract Materials with photoswitchable electronic properties and conductance values that can be reversibly changed over many orders of magnitude are highly desirable. Metal-organic framework (MOF) films functionalized photoresponsive spiropyran molecules demonstrated the general possibility to switch conduction by light potentially large on-off-ratios. However, fabrication MOF materials in a trial-and-error approach is cumbersome would benefit significantly from silico molecular design....
A Fabry–Pérot cavity sensor array based on different homochiral surface-mounted metal–organic-framework (SURMOF) films is presented for the detection and enantioselectively discrimination of chiral analytes.
Molecular motors are fascinating nanomachines. However, constructing smart materials from such functional molecules presents a severe challenge in material science. Here, we present bottom-up layer-by-layer assembly of oriented overcrowded-alkene molecular forming crystalline metal-organic framework thin film. While all stator parts the perpendicular to substrate, rotors point into pores, which large enough allowing for light-induced rotation. Taking advantage film's transparency, motor...
As a key task in autonomous driving, 3D object detection based on LiDAR-camera fusion is expected to achieve more robust results by the complementarity of two sensors. However, non-trivial. An existing problem for this type detector that scale and receptive field LiDAR point features image are not matched, leading information deficiency or redundancy fusion. This paper proposes Point-based Pyramid Attention Fusion (PPAF) module solve problem. The PPAF learns corresponding points with matched...
The embolic agent based on PNIPAM thermosensitive nanogels exhibited excellent biocompatibility and demonstrated long-term, precise embolization ability.
Photoresponsive materials enable dynamic remote control of their fundamental properties. The incorporation photochromic molecules in nanoporous metal–organic frameworks (MOFs) provides a unique opportunity to tailor the material properties, including interaction between MOF host and guest pores. Here, film type HKUST-1 with embedded hexaarylbiimidazole (HABI), undergoing reversible light-induced reactions stable dimer state metastable radical state, is presented. switching form shown by...
We describe our participation at the SemEval 2020 “Detection of Propaganda Techniques in News Articles” - Classification (TC) task, designed to categorize textual fragments into one 14 given propaganda techniques. Our solution leverages pre-trained BERT models. present model implementations, evaluation results and analysis these results. also investigate potential combining language models with resampling ensemble learning methods deal data imbalance improve performance.
Photochromic Materials. In their Communication (e202214202), Lars Heinke et al. report nanoporous films with oriented arrays of molecular motors for light-controlled adsorption and diffusion.
Abstract Molekulare Maschinen und responsive Materialien eröffnen eine Fülle neuer Möglichkeiten in der Nanotechnologie. Wir präsentieren ein orientiertes kristallines Array von Diarylethen (DAE)‐basierten Photoaktoren, die so angeordnet sind, dass sie anisotrope Reaktion erzeugen. Die DAE‐Einheiten werden zusammen mit einem sekundären Linker zu monolithischen oberflächenverankerten metallorganischen Gerüst‐Film (SURMOF) zusammengefügt. Infrarot UV/Vis‐Spektroskopie...
Detecting Volatile Organic Compounds In article 2300329, Heinke and co-workers presented an optical sensor array of Fabry-Pérot films based on three different nanoporous metal-organic frameworks (MOFs). The photonic properties, thus the reflected light from each Fabry-Pérot-MOF sensor, are used as signals to identify various volatile organic compounds. is applied discriminate fresh spoiled milk.
Abstract Molekulare Motoren sind faszinierende Nanomaschinen. Die Herstellung intelligenter Materialien aus solchen funktionalen Molekülen stellt jedoch eine große Herausforderung für die Materialwissenschaften dar. Hier stellen wir einen schichtweisen Aufbau von orientierten, regelmäßig angeordneten molekularen vor, kristallinen nanoporösen metallorganischen Dünnfilm bilden. Während alle Stator‐Teile der synthetischen senkrecht zum Substrat ausgerichtet sind, zeigen Rotor‐Teile in Poren,...