Article
Chemistry, Physical
Wenshuai Yang, Ziqian Zhao, Mingfei Pan, Lu Gong, Feiyi Wua, Charley Huang, Xiaogang Wang, Jianmei Wang, Hongbo Zeng
Summary: This study hypothesized that PEG polymer can be robustly attached onto substrates with the assistance of a bio-glue layer, and proposed a coating strategy for fabricating stable coatings with outstanding antifouling properties in various environmental engineering applications. Experimental results showed that the PEGDE/LP coating exhibited excellent stability and superior antifouling properties, suitable for separating oil-in-water emulsions.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Jhoan Toro-Mendoza, Lucia Maio, Marta Gallego, Ferdinand Otto, Florian Schulz, Wolfgang J. Parak, Carlos Sanchez-Cano, Ivan Coluzza
Summary: Nanoparticles and other nano-materials have potential as nanodrugs or nanomedical devices, but their therapeutic response can be significantly affected by protein adsorption. By combining experimental and computational approaches, we have developed nanoparticles with polyethylene glycol (PEG) coatings that mimic the surface charge distribution of proteins in blood, showing low aggregation under normal blood conditions.
Article
Polymer Science
Shang-Lin Yeh, Piyush Deval, Wei-Bor Tsai
Summary: In this study, a simple and universal technique using pyrogallol-assisted immobilization of poly(ethylene glycol) (PEG) was introduced to deposit a thin antifouling layer on biomaterials. By controlling the amounts of PG and PEG and the coating time, the PG/PEG coating was able to reduce more than 99% of cell adhesion and protein adsorption, while providing a transparent and robust coating that can survive sterilization conditions. This technique has great potential for applications in transparent antifouling coatings for biomedical devices.
Article
Chemistry, Analytical
Ziheng Hu, Ruifeng Zhu, Gabriela Figueroa-Miranda, Lei Zhou, Lingyan Feng, Andreas Offenhaeusser, Dirk Mayer
Summary: This study presents an electrochemical aptasensor for highly sensitive and selective serotonin (ST) detection, based on truncated DNA aptamers and a polyethylene glycol (PEG) molecule-functionalized sensing interface. The aptasensor shows improved sensitivity and enhanced antifouling ability due to the small size and stable structure of the truncated aptamers, as well as the blocking effect of PEG molecules. The sensor exhibits a wide detection range and low limit of detection, and also demonstrates high selectivity and stability in detecting ST in human serum and artificial cerebrospinal fluid (aCSF).
Article
Materials Science, Multidisciplinary
Anwesa Mukherjee, Subhadip Mondal, Debasish Das, Susanta Banerjee, S. B. Majumder
Summary: Surface modification by a thin layer of inert carbon or zirconia obtained by a simple impregnation method can improve the cycleability and rate capability of Na2Ti3O7, a promising low voltage anode for sodium ion battery. X-ray diffraction analysis confirms that the structure of Na2Ti3O7 remains unaltered after the surface modification. After 100 cycles, the modified materials are able to retain a higher percentage of their initial capacity compared to the bare material.
Article
Materials Science, Coatings & Films
Jiangfan Chang, Xiaoyan He, Zongcheng Yang, Xiuqin Bai, Julian A. Wharton, Ping Lu, Chengqing Yuan, Robert J. K. Wood
Summary: This study investigates the control of coating topography by using different nanoparticle sizes and concentrations and explores its correlation with wettability. The use of dual-sized nanoparticles in the fabrication of superhydrophobic coatings results in improved wetting properties compared to single-sized nanoparticles. The antifouling tests demonstrate that superhydrophobic surfaces with Vvc/Vmc > 1 exhibit better antifouling performance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Chemistry, Applied
A. S. Eremina, Yu Kargina, A. Yu Kharin, D. Petukhov, V. Yu Timoshenko
Summary: A one-step procedure using polyethylene glycol (PEG) coating during grinding in a planetary ball mill has been proposed to stabilize mesoporous silicon nanoparticles in aqueous solutions. The nanoparticles were found to have a size of 50-100 nm, preserved nanocrystallinity and mesopores, and remained stable in aqueous solution for at least 24 hours. This PEGylation method offers a way to control the physical properties and stability of mesoporous silicon nanoparticles for biomedical applications.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Polymer Science
Elisa Guazzelli, Niccolo Lusiani, Gianfranca Monni, Matteo Oliva, Chiara Pelosi, Frederik R. Wurm, Carlo Pretti, Elisa Martinelli
Summary: Poly(ethyl ethylene phosphonate)-based methacrylic copolymers containing polysiloxane methacrylate (SiMA) co-units were proposed as surface-active additives for novel PDMS-based coatings for marine antifouling applications. The hydrolysis of these polymers in marine-like conditions and their potential as erodible films were studied. All films underwent surface reconstruction upon immersion in water, becoming more hydrophilic, with different hydrophilic units affecting the extent of surface modification. Films with 10 wt% of the PEtEP-based copolymer showed maximized Ficopomatus enigmaticus release and performed better in bioassays than those with 20 wt% loading, independent of copolymer nature.
Article
Biochemistry & Molecular Biology
Paula A. Mendez, Angela M. Mendez, Laura N. Martinez, Brandon Vargas, Betty L. Lopez
Summary: This study proposes a simple route to obtain starch grafted copolymers from cassava and banana starches chemically modified with amphiphilic maleic anhydride-poly (ethylene glycol) methyl ether (Ma-mPEG). The results show that copolymers obtained from cassava starch have a better plasticizing effect and can be used as coating materials for strawberries.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Biochemistry & Molecular Biology
Abderrahim Nemmar, Suhail Al-Salam, Yaser E. E. Greish, Sumaya Beegam, Nur E. E. Zaaba, Badreldin H. H. Ali
Summary: Research shows that polyethylene glycol-coated silver nanoparticles have cardiotoxic effects in hypertensive mice, leading to increased heart damage and inflammation. Therefore, a thorough assessment of their toxicity is needed before clinical application, especially in patients with cardiovascular diseases.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Analytical
Dawei Fan, Jing Luo, Zhengxing Gong, Huan Wang, Hongmin Ma, Dan Wu, Qin Wei, Huangxian Ju
Summary: In this paper, a novel photoelectrochemical immunosensor based on a ZnO/CdSe semiconductor composite material was developed for the super-sensitive and quantitative detection of neuron-specific enolase (NSE). The antifouling interface composed of polyacrylic acid (PAA) and polyethylene glycol (PEG) effectively prevented non-specific protein adsorption. Ascorbic acid (AA) served as an electron donor, enhancing the stability and intensity of photocurrent by scavenging photogenerated holes. The PEC antifouling immunosensor exhibited a wide linear range (0.10 pg mL-1-100 ng mL-1) and a low detection limit (34 fg mL-1), making it a potential tool for clinical diagnosis of small cell lung cancer.
ANALYTICA CHIMICA ACTA
(2023)
Article
Materials Science, Multidisciplinary
Caleb J. Reese, Yarong Qi, Dustin T. Abele, Michael J. Wagner, Xitong Liu, Stephen G. Boyes
Summary: With freshwater scarcity becoming a growing issue, purifying alternative water sources is crucial. Reverse osmosis membranes made of aromatic polyamide films have become the industry standard due to their excellent salt rejection. However, current technology faces challenges such as fouling, degradation, and delamination. In this study, OEG-functionalized aromatic polyamide brushes were successfully synthesized using surface initiation, resulting in improved antifouling characteristics compared to PEG monolayers and non-functionalized brushes.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Wenshuai Yang, Mingfei Pan, Jiawen Zhang, Ling Zhang, Fengcai Lin, Xiong Liu, Charley Huang, Xing-Zhen Chen, Jianmei Wang, Bin Yan, Hongbo Zeng
Summary: The study developed a surface coating method to anchor super-hydrophilic cellulose nanocrystals (CNCs) firmly on various substrates using a bio-glue layer composed of tannic acid/polyethylenimine/vanadium, achieving a CNCs coating with high-density structure and low roughness. The CNCs coating exhibited outstanding antifouling properties and high water flux, showing potential for broad engineering and environmental applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Polymer Science
Taghreed Abdulhameed Al-Gunaid, Igor Krupa, Mabrouk Ouederni, Senthil Kumar Krishnamoorthy, Anton Popelka
Summary: Plasma-assisted grafting of different molecular weight PEG compounds onto the LDPE surface improved adhesion between LDPE and Al, significantly enhancing wettability. Surface modifications were confirmed through XPS and FTIR, while adhesion characteristics were analyzed using peel tests, showing a significant increase in peel resistance with PEG solution.
Article
Engineering, Chemical
Hanyu Chen, Qiang Wu, Liqing Ai, Dapeng Li, Shijun Long, Yiwan Huang, Xuefeng Li
Summary: This article reports a surface engineering strategy using PVA/OSA double network hydrogel coating to improve the performance of PTFE hollow fiber membranes, which exhibited high efficiency in oil-water separation and antifouling performance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
