Article
Chemistry, Analytical
Qiong Hu, Luofeng Su, Yanyu Huang, Zhuohua Chen, Xiaojing Cao, Yilin Luo, Dongdong Qin, Li Niu
Summary: An ultrasensitive peptide nucleic acid (PNA)-based electrochemical DNA biosensor was reported using coenzyme-mediated electro-grafting of polymers for signal amplification, showing great promise in sequence-specific detection of DNA targets at ultralow concentrations.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Review
Polymer Science
Maneesh Kumar, Praveen Singh Gehlot, Deepika Parihar, Praveen K. Surolia, Gayatri Prasad
Summary: Cellulose is an abundant organic substance with various applications such as paperboard production, drug delivery, and food packaging due to its bio-renewable and bio-degradable properties. Radical polymerization is commonly used to create cellulose derivatives with improved properties, by reacting cellulose with small organic fragments like methacrylate and styrene. Initiators like Fenton's reagent and controlled radical polymerization methods are utilized to generate free radicals on the cellulose backbone for grafting purposes, allowing for the development of functional cellulose with enhanced physical and chemical properties.
EUROPEAN POLYMER JOURNAL
(2021)
Review
Biotechnology & Applied Microbiology
Priyank Purohit, Akanksha Bhatt, Ravi K. Mittal, Magda H. Abdellattif, Thoraya A. Farghaly
Summary: Polymer grafting is a technique to improve the morphology and properties of polymers. By creating copolymers or grafting, the physicochemical properties of polymers can be further modified. This review discusses various chemical approaches for polymer grafting, such as free radical reactions, click reactions, amide formation, and alkylation. The review also covers the importance of the graft-to approaches and their application in different fields.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2023)
Article
Polymer Science
Clement Robin, Cedric Lorthioir, Abdoulaye Fall, Guillaume Ovarlez, Catherine Amiel, Clemence Le Coeur
Summary: This study investigates the temperature-composition phase diagram of PMAA and the formation of phase-separated nanostructures, revealing the mechanism and characteristics of phase separation in the semi-dilute regime.
Article
Chemistry, Multidisciplinary
Han Yu, Junjie Liu, Lin Zhao, Yonglin Liu, Lulu Gu, Lianxiang Feng, Yonggen Weng, Qingxu Duan, Baorong Duan, Jiale Qu
Summary: The suspension polymerization process was used to create acrylate resin microspheres for mesh coating technology. The synthesized microspheres had mesh numbers of 140-200 µm and particle sizes of 100 µm. The optimal reaction conditions for synthesis were determined to be a dispersant dosage of 30 g of calcium carbonate, a monomer ratio of 4:1, a reaction time of 1 h, an initiator dosage of 1.2 g of BPO, and a reaction temperature of approximately 75-80 °C, resulting in microspheres with a regular spherical shape and smooth surface.
FRONTIERS IN CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Nael Berri, Tamara Elzein, Diana Dragoe, Ludivine Houel Renault, Nadine Barroca-Aubry, Abdel Wahab Mouhamad, Philippe Roger
Summary: This study increases the specific surface of fiber materials by grafting active polymers and successfully applies them to the capture of lanthanide elements.
ACS APPLIED POLYMER MATERIALS
(2022)
Review
Engineering, Chemical
Miguel angel Vega-Hernandez, Gema Susana Cano-Diaz, Eduardo Vivaldo-Lima, Alberto Rosas-Aburto, Martin G. Hernandez-Luna, Alfredo Martinez, Joaquin Palacios-Alquisira, Yousef Mohammadi, Alexander Penlidis
Summary: This critical review focuses on the synthesis, characterization, and modeling of polymer grafting, pointing out that there is room for further research in this area despite existing understanding and efforts.
Article
Engineering, Environmental
Zhe Wang, Kaiyuan Ma, Yufeng Zhang, Xinbo Zhang, Huu Hao Ngo, Jianqiang Meng, Lingzhong Du
Summary: In this study, a hierarchically and interconnected porous polymer was fabricated using high internal phase emulsion (HIPE) for removing boron from water. The porous polymer showed high boron uptake capacity and fast adsorption equilibrium, as well as good mechanical strength and regeneration efficiency.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Wei Li, Wenbo Sheng, Bin Li, Rainer Jordan
Summary: The report presents a facile and generalized approach to modify solid surfaces with polymer brushes under ambient conditions using filter paper-assisted surface-initiated Cu-0-mediated controlled radical polymerization (PSI-CuCRP). The method allows for selective surface grafting with good control over polymer brush quality, demonstrating the versatility by grafting different polymer brushes with high chain-end functionality. The combination of photolithography and paper cutting enables the preparation of arbitrary three-dimensional patterned polymer brushes on the surface.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Emma E. Brotherton, Craig P. Jesson, Nicholas J. Warren, Mark J. Smallridge, Steven P. Armes
Summary: This study presents a novel method for the synthesis of a hydrophilic cis-diol-based methacrylic monomer, resulting in water-soluble aldehyde monomers and homopolymers. Furthermore, the synthetic utility of these products was demonstrated through reactions with three amino acids.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Polymer Science
Erika Yoshihara, Ahmed Nabil, Shinichi Mochizuki, Michihiro Iijima, Mitsuhiro Ebara
Summary: Temperature-responsive antibody-nanoparticles were prepared by introducing a chain transfer agent into immunoglobulin G and conducting precipitation polymerization of N-isopropylacrylamide in an aqueous medium. The resulting particles showed stability below the LCST and resistance against enzymatic treatment, making them useful for enhancing therapeutic potential of antibody-drug conjugates or immunoassays.
Article
Materials Science, Multidisciplinary
Yi-Cheng Shi, Bao-Guo Ma, Ji-Peng Guan, Bei Ye, Li-Chao Yu, Zhi-Min Wu, Xiao-Jun Shen, Shigeki Habaue
Summary: A new compound, N-TMSPrVaC, was synthesized and used as a modifier for epoxy resin. The results showed that N-TMSPrVaC significantly improved the mechanical and impact properties of the composites. Scanning electron microscopy and X-ray spectrometry analysis revealed a uniform distribution of N-TMSPrVaC in the epoxy resin. Dynamic thermomechanical analysis demonstrated that the functionalized silicon polymer retained the heat resistance of the epoxy composite material to a certain extent and toughened the epoxy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Sikai Chen, Qing-Yang Feng, Dong Li, Fei Song, Xiu-Li Wang, Yu-Zhong Wang
Summary: This investigation examines the relationship between the structure and properties of surface-grafted cellulose nanofiber (CNF)-based one-component composites. Key parameters, such as graft density, graft chain length, and interface structure, were systematically adjusted. Increasing the graft density and hydrophobic modification of the CNF surface improved thermal stability. Shorter graft chain length increased the T(g) of the graft chain while hydrophobic modification and longer graft chain length decreased stiffness. Decreasing graft density remarkably enhanced toughness and strength. The interfacial interaction between CNF and grafted polymer played a crucial role in determining the composites' properties, along with graft density.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Biophysics
Chayanan Khotchana, Pongsathon Phapugrangkul, Pakorn Opaprakasit, Dolnapa Kaewpa, Preeyaporn Chaiyasat, Amorn Chaiyasat
Summary: A novel method for preparing PLLA particles and capsules without the use of surfactant was proposed in this study. The nearly monodisperse products showed excellent inhibitory effects on microbial growth and were non-toxic to human cells.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Engineering, Chemical
Zahra Nadizadeh, Hossein Mahdavi
Summary: In this research, a method was developed to stabilize RAFT initiators on the surface of polyamide NF membranes, followed by successful grafting of a zwitterionic polymer pMEDSAH to reduce irreversible protein adsorption. The prepared grafting membranes showed promising potential for practical applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)