Article
Polymer Science
Julio E. Trevino, Swati Mohan, Alexandra E. Salinas, Emilia Cueva, Karen Lozano
Summary: This study developed and characterized PVDF-conjugated polymer nanofiber-based systems, with PVDF/PPY nanofiber system exhibiting the highest piezoelectric performance. These systems show potential as an attractive source of energy for various devices.
JOURNAL OF APPLIED POLYMER SCIENCE
(2021)
Article
Materials Science, Multidisciplinary
Christian Bellacanzone, Jaume Ramon Otaegui, Ordi Hernando, Daniel Ruiz-Molina, Claudio Roscini
Summary: This study demonstrates the creation of tunable thermofluorochromic materials by utilizing phase change materials to trigger fluorescence color changes in conjugated polymers and oligomers. The spectral properties of the resulting materials can be varied through the structure and concentration of fluorophores as well as the nature of the phase change material. The materials show promising features for applications such as thermal sensors and anticounterfeiting labels.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Analytical
Ruru Gao, Xiu-Shen Wei, Wei Zhao, Aming Xie, Wei Dong
Summary: The fluorescent properties of CMPs were tuned through the inclusion of small amounts of comonomer, resulting in multi-color CMPs that demonstrated broad sensitivity for explosive compounds and high classification accuracy using machine learning algorithms.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Shanshan Liu, Xujie Xiong, Zhijun Ruan, Junqi Lin, Yanmei Chen
Summary: A label-free ratiometric fluorescent biosensing platform based on FRET technology was designed for monitoring histone acetylation and evaluating the activity of HAT and HDAC with a wide linear range and low detection limit, showing potential for clinical diagnosis and drug discovery related to HAT/HDAC activity.
MICROCHEMICAL JOURNAL
(2021)
Article
Spectroscopy
Qinghua Hu, Wenfeng Zhang, Qiang Yin, Yuyuan Wang, Hongqing Wang
Summary: A conjugated fluorescent polymer sensor P2 based on amidoxime groups and polyfluorene was designed and prepared for trace uranyl ion detection in an aqueous medium. The sensor showed good selectivity and sensitivity, with significant application potential for environmental uranyl ion detection.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Polymer Science
Diego Oliveira Miranda, Matheus Figueiredo Dorneles, Rodrigo Lambert Orefice
Summary: In this study, the idea of synthesizing conjugated polymers (polyaniline, PANI) within the core of a core-shell submicron electrospun fiber was tested. The shell of the fiber was prepared through photopolymerization during electrospinning, while the core was produced from an aniline-rich solution. Polymerization of aniline occurred during electrospinning, leading to the formation of highly doped and conductive emeraldine PANI. The ability of the fiber shell to swell in water and create materials with low elastic modulus, similar to hydrogels, was also observed.
POLYMER INTERNATIONAL
(2023)
Article
Nanoscience & Nanotechnology
Angela Awada, Mark Potter, Dananjana Wijerathne, James W. Gauld, Bulent Mutus, Simon Rondeau-Gagne
Summary: Microplastic pollution is a global challenge that needs immediate mitigation. This study introduces a novel design for the selective detection of microplastics using fluorescent conjugated polymer nanoparticles. The nanoparticles show strong affinity for various types of plastics and can be used for the detection of microplastics in heterogeneous samples.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Review
Polymer Science
Zheng Li, Ying-Wei Yang
Summary: Conjugated macrocycle polymers (CMPs) are a type of organic porous materials with supramolecular macrocycles embedded in the conjugated skeleton, offering flexibility for molecular design and customized functionalization. They have shown promise in various applications and have sparked growing interest in the research community.
Article
Spectroscopy
Feng Zhu, Kang Wang, Tongmou Geng
Summary: A hexaphenylsilole-based conjugated microporous polymer with high sensitivity and selectivity for sensing was synthesized through a catalytic reaction, demonstrating a large surface area and pore volume.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Physical
Habtom B. Gobeze, Pradeepkumar Jagadesan, Kirk S. Schanze
Summary: This paper investigates the electronic structure and photophysical properties of two diblock & pi;-conjugated oligomers. The experimental results are supported by density functional theory calculations and time-dependent DFT calculations. The fluorescence and transient absorption spectroscopy results show that the photophysical properties and dynamics of the excited states are similar for T4-TBT and T8-TBT.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Habtom B. Gobeze, Pradeepkumar Jagadesan, Kirk S. Schanze
Summary: This paper investigates the electronic structure and photophysical properties of two diblock π-conjugated oligomers with electron rich tetra(thiophene) (T4) or octa(thiophene) (T8) segments linked to an electron poor 4,7-bis(2-thienyl)-2,1,3-benzothiadiazole (TBT) moiety. The results show that the diblock oligomers display redox and absorption features that can be attributed to the Tn and TBT units, and the frontier orbitals on the diblock oligomers retain characteristics of the individual π-conjugated segments. Moreover, the fluorescence and transient absorption spectroscopy reveal that the photophysical properties and dynamics of the excited states are dominated by charge transfer between the oligo-thiophene and TBT units.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Polymer Science
Wei Liu, Haibo Chen, Shifeng Zhang, Peng Li, Weibing Wu
Summary: This work synthesizes two novel fluorescent conjugated polymers with different conjugated structures and investigates their fluorescence sensing performance for 2,4,6-trinitrotoluene (TNT) in both liquid and gas phases. The films of these polymers demonstrate selective detection of gas-phase TNT within a short time, indicating their potential for rapid on-site detection of trace explosives.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2023)
Article
Polymer Science
Qi Chen, Chuxin Luo, Qi Ma, Xueyang Yan, Xuediao Cai
Summary: Hyperbranched conjugated polymers containing different aryl groups appended with carboxylic ester groups were synthesized by metal-free catalyzed polymerization and showed good solubility in organic solvents and thermal stability. They were investigated as fluorescence chemosensors for Fe3+ ion detection, with the water-soluble polymers also demonstrating capability in aqueous solutions. These polymers were highly sensitive and selective towards Fe3+ ions in both organic solvents and water, suggesting their potential as real-time fluorescence chemosensors.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Polymer Science
Xindong Liu, Peng Lei, Xiaoqing Liu, Yifan Li, Yitong Wang, Lei Wang, Qing-Dao Zeng, Yi Liu
Summary: A series of bridged multicyclic conjugated polymers were synthesized by Yamamoto polymerization, and their chemical identities were confirmed by spectroscopy and chromatography. The bridged multicyclic backbone was directly visualized by scanning tunneling microscopy, confirming the topology of the polymers. Like their cyclic monomers, these multicyclic conjugated polymers exhibit intense fluorescence due to aggregation-induced emission, and their fluorescence can be efficiently quenched by picric acid in aqueous media through the static quenching mechanism involving photo-induced electron transfer.
Article
Polymer Science
Liwen Hu, Shengzu Liao, Tianze Hu, Peiling Chen, Chunxiao Wang, Ting Guo, Renqiang Yang, Lei Ying
Summary: Two-photon fluorescence bioimaging holds great promise for deep tissue imaging. By manipulating twisted intramolecular charge transfer, efficient conjugated polymers with high fluorescence quantum yields and large absorption cross-sections can be realized for two-photon fluorescence imaging and photodynamic therapy.
