4篇
您的检索式：作者名="Congdi Shang"
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| 1 | Nonplanar Perylene Monoimide-Based Fluorescent Film for Enhanced BTX Sensing显示文摘Film-based fluoresce nt sen sors have been adapted into portable devices for the vapor phase detecti on.The satisfactory sensing performs nee(e.g.,sen sitivity,selectivity,reusability)largely bene fits from fluorophores. | Meiling Zhang Nannan Ding Fayan Lai Congdi Shang Rong Miao Zhongshan Liu Yu Fang | 2021 | Chinese Journal of Chemistry2021，39，8： | 2 |
| 2 | A fluorescent film sensor for high-performance detection of Listeria monocytogenes via vapor sampling显示文摘Foodborne Listeria monocytogenes poses serious threats to public health.Fast and sensitive detection of the pathogen at the point of contamination is thus crucial to halt the spread of bacteria-related diseases.Herein,we report for the first time a fluorescent film sensor to detect the biomarker of L.monocytogenes,3-hydroxy-2-butanone.The sensor demonstrated unprecedented sensing performance for the analyte with a detection limit lower than 0.05 mg/m^(3),response time less than 1 s,full reversibility,and excellent selectivity.Further study showed that the sensor can be used to monitor the growth of L.monocytogenes with much-improved sensitivity.The superior performance of the sensor is ascribed to the specific binding,efficient charge transfer emission,and porous adlayer structure of the specially designed sensing fluorophore-based film.Our work paves the way to develop a portable detector to meet the needs for on-site and real-time detection of foodborne pathogens. | Rongrong Huang Meiqi Li Dehui Lin Yangtao Shao Congdi Shang Qianqian Liu Guijun Liu Nan Li Rong Miao Haonan Peng Yanli Tang Yu Fang | 2023 | Aggregate2023，4，1： | 0 |
| 3 | A Configurationally Tunable Perylene Bisimide Derivative-based Fluorescent Film Sensor for the Reliable Detection of Volatile Basic Nitrogen towards Fish Freshness Evaluation显示文摘Rapid and real-time mon itoring of food quality plays critical roles in the food industry and for the gen era I public health.Herei n,we specially synthesized a new perylene bisimide(PBI)derivative(PCB-EpE)composed of two PBI units and a rigid o-carborane linker,which was further employed in constructi ng a con ceptual fluoresce nt film sen sor for evaluati ng fish fresh ness.Photophysical studies indicate that PCB-EpE displays an open'Z-type'molecular configuration in chloroform and a closed'△-type'configuration in methyl cyclohexa ne.Comparatively,'Z-type'molecular configurati on possesses higher fluoresce nee qua ntum yield and is more sen sitive toward volatile basic nitrogen(VBN). | Qingwei Jiang Zhaolong Wang Gang Wang Ke Liu Wenjun Xu Congdi Shang Xinyu Gou Taihong Liu Yu Fang | 2022 | Chinese Journal of Chemistry2022，40，2： | 0 |
| 4 | Excimer Formation of Perylene Bisimide Dyes within Stacking-Restrained Folda-Dimers:Insight into Anomalous Temperature Responsive Dual Fluorescence显示文摘We have fabricated a new perylene bisimide(PBI)folda-dimer(BPBI-CB-1)by tethering two PBI moieties to the ortho-carbon positions of a carborane unit.The synthesized compound adopted distinct configurations in different solvents with dual emissions as its characteristic.The two PBI moieties in the molecule appeared either in a weakly interacted,monomer-like state or brought into close π-π contact with each other,forming an interacted stacking state.The equilibrium between these two states was governed by the nature of solvents and testing temperature.Spectroscopic and theoretical studies concluded that dual emission bands originated from intramolecular monomer-like and stacking states,respectively.Remarkably,in a solvent like 1,2-dichloroethane(DCE),both emission intensities increased with rising temperatures.The positive temperature response of the monomer emission was ascribed to an increased amount of monomer-like population,owing to its endothermic energy state,while the excimer emission was rationalized by increased population of the bright exciton state,resulting in an increased emission yield that compensated the diminished population of the stacking state.To our knowledge,this is the first report on positive temperature-responsive dual emissions associated with the synergism of intramolecular intersubunit aggregation/dissociation and excimer transformation. | Congdi Shang Gang Wang Yu-Chen Wei Qingwei Jiang Ke Liu Meiling Zhang Yi-Yun Chen Xingmao Chang Fengyi Liu Shiwei Yin Pi-Tai Chou Yu Fang | 2022 | CCS Chemistry2022，4，6： | 0 |
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