Article
Engineering, Environmental
Xubao Jiang, Siqiang Yan, Xiang Zheng Kong
Summary: In contrast to conventional fluorescent polymers, a class of fluorescent polymers without conjugations and chromophores has gained significance in applications where traditional materials cannot perform. By reacting with concentrated NaOH, low molecular weight PEG can be alkoxidized to form sodium PEG (NaPEG). NaPEG exhibits significantly enhanced fluorescence emission compared to PEG, thanks to its enhanced clustering capacity based on the cluster-triggered emission principle. NaPEG demonstrates superior performance in various applications, such as the detection of Cr6+, Fe3+, H2O2, and DOX, data encryption, cell imaging, and monitoring.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Yunxia Shen, Zhongfu An, Haichao Liu, Bing Yang, Yujian Zhang
Summary: This paper provides a systematic overview of the phenomenon of multicolour luminescence, classifying it based on single chromophores, dual/ternary chromophores, and multiple emitting species. The underlying processes are described, taking into account the electronic and/or geometrical conditions under which the phenomenon occurs. Related photophysical and photochemical foundations are also introduced, providing a clear approach to designing multicolour luminescence materials for special applications.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Lingyi Li, Shusheng Li, Hongyan Cui, Xiaoli Zhu, Xiang Zheng Kong
Summary: In recent years, multiresponsive polymers with nonconjugated chromophores featuring cluster-triggered emission (CTE) have been of great interest due to their wide applications. However, there is a lack of studies correlating the fluorescent properties to their distinct stimuli-responsiveness. In this study, a poly(ethylene glycol)-polysiloxane copolymer called PEG-Si was introduced, demonstrating responsiveness to temperature, pH, CO2, and salinity, with adjustable phase transition and reversible fluorescence. The results show that PEG-Si can be utilized as a temperature and pH fluorescence thermometer and biosensor for detection of uric acid with high sensitivity.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Junwen Deng, Hangrui Wu, Wendi Xie, Haoyuan Jia, Zhonggang Xia, Huiliang Wang
Summary: Fluorescent polymeric hydrogels, especially multicolor fluorescent polymeric hydrogels, have important applications in information storage, encryption, and encoding. Nontraditional MFPHs with strong intrinsic fluorescence and metal cation-responsive properties have been developed by incorporating novel luminescent polymers. A multi-ion inkjet printing technique allows for the printing of texts or patterns onto the hydrogel surface using metal cation solutions, resulting in variable patterns visible under different light excitations, enabling multidimensional information encryption.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Ekkachai Martwong, Yvette Tran
Summary: The study reports on the synthesis and temperature-responsive properties of poly(PEGMA) hydrogel thin films. Surface-attached poly(PEGMA) hydrogel films were synthesized using a simple, versatile, and well-controlled thiol-ene click reaction method, with the transition temperature finely tunable by adjusting the number of PEG units. The LCST properties of the hydrogel films are not sensitive to salt, holding promise for applications in biology such as injectable hydrogels, drug delivery systems, microfluidic valves, and flow switches for biotechnologies.
Article
Engineering, Environmental
Xubao Jiang, Suisui Wang, Xiang Zheng Kong
Summary: Monitoring and detecting pyrimidines, such as uracil and 5-fluorouracil, is crucial in cancer treatment. This study demonstrates that poly(ethylene glycol) (PEG), a commonly known biopolymer, can be used as a sensor for pyrimidine detection. The fluorescence of PEG is quenched when pyrimidines are added, indicating an interaction through hydrogen bonding.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Irina M. Le-Deygen, Oxana E. Musatova, Victor N. Orlov, Nikolay S. Melik-Nubarov, Irina D. Grozdova
Summary: This study provides the first evidence of the interaction between PEG and HA in aqueous solutions. The binding of PEG to HA requires multiple free primary hydroxyls regularly distributed along the polysaccharide chain. Additionally, PEG-induced compaction of HA may be related to changes in plasma membrane properties and resealing of mechanical injuries.
Article
Polymer Science
Xubao Jiang, Qinghui Wang, Bin Li, Shusheng Li, Xiang Zheng Kong
Summary: Polyamide is a conjugation-free fluorescent polymer with unique electrophotonic properties, making it a promising material for various applications including sensors and data encryption.
CHINESE JOURNAL OF POLYMER SCIENCE
(2023)
Article
Nanoscience & Nanotechnology
Haitao Huang, Zhuxin Zhou, Chao Qian, Siwei Liu, Zhenguo Chi, Jiarui Xu, Min Yue, Yi Zhang
Summary: In order to enhance the lithium-ion transporting ability in lithium-ion batteries, a high-performance polyimide-based lithium-ion battery separator (PI-mod) was developed by grafting poly(ethylene glycol) (PEG) onto a heat-resistant polyimide nanofiber matrix with the assistance of polyethyleneimine (PEI). The resulting PEI-PEG polymer coating exhibited gel-like properties with high electrolyte uptake rate, low area resistance, and high ionic conductivity. The modified PI separator showed improved rate capabilities and capacity retention compared to commercial separators and pure polyimide matrix, due to the high electrolyte affinity of the PEI-PEG polymer coating. This strategy of using electrolyte-swollen polymer for modifying thermal-resistant separator networks provides an efficient way to establish high-power lithium-ion batteries with good safety performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Polymer Science
Graham Hayes, Ben Drain, C. Remzi Becer
Summary: Poly(2-oxazoline)s are promising for biomedical applications, but limited synthetic approaches exist for star-shaped polymers. A novel bis-oxazoline cross-linker was developed via a fast thiol click reaction, allowing the preparation of well-controlled core cross-linked star polymers. The synthesized star-shaped polymers were characterized extensively and showed potential for encapsulation of dihydroxyanthroquinone.
Article
Chemistry, Multidisciplinary
Qian Wang, Zhen Qi, Qi-Meng Wang, Meng Chen, Biyan Lin, Da-Hui Qu
Summary: A time-lock information encryption material has been developed based on a time-dependent fluorescent hydrogel, which can encode and self-erase information on a specified time scale. This material provides a higher level of security and offers new insights for information encryption.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Qiuquan Cai, Jiahong Jiang, Hongjie Zhang, Pengfei Ge, Liu Yang, Weipu Zhu
Summary: A PTX-loaded nanodrug was prepared through self-assembly of PTX and an amphiphilic PEG derivative, showing good biocompatibility and selective drug release under intratumor reducing conditions. This nanodrug has potential for delivering hydrophobic drugs to treat malignant tumors with prolonged circulation time and excellent antitumor efficacy in vivo.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Shuo Ai, Yue Qin, Yuxiang Hong, Linghui Liu, Wanguo Yu
Summary: Selective inhibition of acetalization reaction on ion-exchange-modified zeolite was studied, which significantly suppressed acetalization and oligomerization reactions, improved the recovery of ethylene glycol (EG), and enhanced the stability of the zeolite.
JOURNAL OF CATALYSIS
(2022)
Correction
Chemistry, Multidisciplinary
Jun Lu, Yao Xue, Rui Shi, Jing Kang, Chao-Yang Zhao, Ning-Ning Zhang, Chun-Yu Wang, Zhong-Yuan Lu, Kun Liu
Summary: This study proposes a new method for quantifying the grafting density of poly(ethylene glycol) on gold nanoparticles in nanomedicine. By employing a corrected experimental procedure, the density of poly(ethylene glycol) on the nanoparticles can be measured more accurately. This has important implications for drug delivery and biological effect studies in nanomedicine.
Article
Polymer Science
Moein Zarei, Miroslawa El Fray
Summary: Polymeric materials have a wide range of applications due to their controllable properties. In this study, a series of PBS-DLS-PEG copolymers were synthesized with different molecular weights of PEG to investigate their surface and thermal properties. The incorporation of higher molecular weight PEG improved the surface wettability of the materials while maintaining their thermal properties.
Article
Chemistry, Multidisciplinary
Zuoxu Xiao, Hongyan Cao, Xubao Jiang, Xiang Zheng Kong
Article
Engineering, Chemical
Xingjie Yang, Xubao Jiang, Muhammad Sohail Bashir, Xiang Zheng Kong
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Materials Science, Paper & Wood
Dongxiao Xu, Minghui Gong, Shusheng Li, Xiaoli Zhu, Xiang Zheng Kong
Article
Engineering, Environmental
Qinghui Wang, Bin Li, Hongyan Cao, Xubao Jiang, Xiang Zheng Kong
CHEMICAL ENGINEERING JOURNAL
(2020)
Article
Polymer Science
Hao Sun, Youyan Wei, Xiang Zheng Kong, Xubao Jiang
Summary: This study prepared uniform polyurea microspheres using isophorone diisocyanate as the only monomer through precipitation polymerization, achieving highly uniform microspheres. The microspheres were used as support for immobilizing laccase, which showed higher stability and catalytic activity in biodegradation of dyes-polluted water, providing a new pathway for enzymatic remediation of water pollution.
Article
Engineering, Chemical
Muhammad Sohail Bashir, Xubao Jiang, Xingjie Yang, Xiang Zheng Kong
Summary: A novel approach of preparing a Pd@PPU catalyst with high performance for Cr(VI) reduction was developed by immobilizing Pd nanoparticles on a porous polyurea surface. The catalyst showed superior catalytic performance in reducing toxic hexavalent chromium, and full regeneration could be achieved through heating under N-2 atmosphere.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Polymer Science
Xubao Jiang, Hongyan Cao, Libin Zhang, Lili Wu, Xiang Zheng Kong
Summary: Colloidal particles can self-organize into highly ordered superstructures, and in this study, uniform polystyrene particles were prepared and used to fabricate solid and hollow colloidosomes. By varying parameters such as shaking frequency and solvent ratio, the size and morphology of the colloidosomes could be controlled, with the formation mechanism well interpreted based on adsorption energy.
Article
Materials Science, Biomaterials
Suisui Wang, Xubao Jiang, Chunqi Sun, Xiang Zheng Kong
Summary: This study develops a novel, fully green, low-cost, and reliable method for monitoring and detecting tetracyclines using poly(ethylene glycol) (PEG) as a sensor. Through the interaction between PEG and specific heteroatom groups, high-performance detection of doxycycline (DOX) and tetracycline (TC) is achieved.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2022)
Article
Materials Science, Multidisciplinary
Shusheng Li, Xiaona Pan, Xiaoli Zhu, Xubao Jiang, Xiang Zheng Kong
Summary: Poly(urea-siloxane) (PUSi) microspheres were synthesized by step-growth and precipitation polymerization using isophorone diisocyanate (IPDI) and 1,3-bis(3-aminopropyl)-1,1,3,3-tetramethyldisiloxane (APDS) as monomers in a ternary solvent system. The PUSi microspheres exhibited blue fluorescence and the emission intensity increased with a lower IPDI/APDS ratio. The dispersion of PUSi microspheres in water showed concentration-enhanced emission and was used as a fluorescent probe for Cr6+ and Fe3+ detection with high sensitivity and selectivity.
ACS APPLIED POLYMER MATERIALS
(2023)