Article
Materials Science, Coatings & Films
Pranjyan Dash, Senthilkumar Thirumurugan, Chih-Chien Hu, Cheng-Jui Wu, Shao-Ju Shih, Ren-Jei Chung
Summary: A polyelectrolyte multilayer (PEM) coating was fabricated with collagen and poly (gamma-glutamic acid) (gamma-PGA) onto 316L stainless steel, loaded with vancomycin (VA) and strontium containing bioactive glass (SrBG). The films exhibited smooth and uniform surface, good wettability, and enhanced mechanical properties. Biomineralization and apatite layer formation were observed in simulated body fluids. The composite films showed antibacterial properties, excellent biocompatibility with bone marrow mesenchymal stem cells, and enhanced angiogenesis and bone regeneration ability. Thus, the PEM/VA/SrBG composite films have great potential for orthopedic implant applications.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Yi-Jie Kuo, Chia-Hsien Chen, Pranjyan Dash, Yu-Chien Lin, Chih-Wei Hsu, Shao-Ju Shih, Ren-Jei Chung
Summary: The main causes of failure in implant surgery are prolonged exposure and tissue ischemia, along with bacterial infection caused by the medical environment and equipment. Developing an implant coating to guide tissue growth and promote antibacterial activity can greatly reduce the medical risk.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Materials Science, Coatings & Films
Fortunate Moyo, Josias W. van der Merwe, Daniel Wamwangi
Summary: This study investigates three strategies to enhance the adhesion of ruthenium films on stainless steel and finds that ruthenium films produced by pulsing deposition pressure exhibit the best performance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Jo Sing Julia Tang, Aline Debrassi Smaczniak, Lucas Tepper, Sophia Rosencrantz, Mina Aleksanyan, Lars Daehne, Ruben R. Rosencrantz
Summary: This study describes the synthesis of bioinspired glycopolymer electrolytes using protecting group free and aqueous-based methods, fabricated as thin films by Layer-by-Layer self-assembly to serve as scaffolds for liposomes. The results demonstrate the stability and integrity of glycopolymer coatings and embedded liposomes within the physiological pH range.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Polymer Science
Biswa P. Das, Marina Tsianou
Summary: Multilayer thin film assembly by the layer-by-layer (LbL) technique is an inexpensive and versatile route for the synthesis of functional nanomaterials. This study achieves exponential growth in clay-containing polyelectrolyte films with high clay loading and tailored properties by incorporating a weak polyelectrolyte and a clay with high charge density and small particle size. The findings include novel pathways to manipulate film characteristics. The presented strategy can lead to novel approaches to fabricate tailor-made nanomaterials for distinct applications.
Article
Chemistry, Physical
Mingyu You, Lei Zhang, Tobias A. Gmuer, Kaihuan Zhang, Stefan Zuercher, Wen Li, Guangyin Yuan, Nicholas D. Spencer, Jia Pei
Summary: The article introduces a surface modification method for synthetic pure hydroxyapatite (HA) material, which can provide antimicrobial properties and cytocompatibility. By synthesizing polyethylene glycol graft copolymers, a stable self-assembly layer was successfully formed on the surface of hydroxyapatite, effectively inhibiting non-specific protein adsorption, promoting osteoblast attachment, and preventing bacterial adhesion.
APPLIED SURFACE SCIENCE
(2022)
Article
Polymer Science
Yi-Wei Chen, Muhammad Haseeb Iqbal, Florent Meyer, Vincent Ball, Fouzia Boulmedais
Summary: The surface properties of biomaterials are crucial for cell behavior. Collagen-based layer-by-layer films were constructed using different macromolecules, such as tannic acid, heparin, and poly(sodium 4-styrene sulfonate). Parameters like pH value, dipping time, and salt concentration were optimized for efficient film buildup. The stability and release of tannic acid from the films were studied, and collagen/tannic acid films showed excellent proliferation of human fibroblasts, supporting their potential as biomedical coatings.
Review
Biochemistry & Molecular Biology
Joanna Pota, Katarzyna Winnicka
Summary: This article investigates the potential of polyelectrolyte multilayers (PEMs) as drug delivery materials. It discusses the effects of polymer combinations, technological parameters, and physicochemical characteristics on the multilayers. Despite their widespread use in functionalizing implantable scaffolds, the application of PEM coatings in drug administration is limited.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Physical
Tomasz Kruk, Karolina Chojnacka-Gorka, Marta Kolasinska-Sojka, Szczepan Zapotoczny
Summary: This paper reviews the formation, structure determination, and properties of polyelectrolyte multilayer (PEM) films and capsules that respond to physical, chemical, and biological stimuli. It discusses their applications as microcarriers for controlled release, substrates for controlled cell growth, coatings for enhanced surface adhesion, and self-healing anticorrosive systems. The impacts of various stimuli on the integrity and permeability of the films or capsules shell are presented, along with their applications in controlled drug release, biotechnology, and industrial protective coatings.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Chemical
Christy M. Koerner, David P. Hopkinson, Margaret E. Ziomek-Moroz, Alvaro Rodriguez, Fangming Xiang
Summary: In this study, a 60 nm thick TA/PEI multilayer coating was successfully developed using LbL assembly, which effectively prevented carbon steel corrosion in deionized water for at least one month. This corrosion resistance was achieved through water stability based on ionic bonding and surface adhesion based on coordination bonding. Additionally, the COO-free components used in this coating make it more environmentally friendly.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2021)
Article
Chemistry, Applied
Khalil Ahmad, Jawad Manzur, Muhammad Tahir, Rabia Hussain, Mahmood Khan, Abdul Wadood, Egemen Avcu, Muhammad Atiq Ur Rehman
Summary: In this study, zein coatings containing cloves were developed on stainless steel substrates using electrophoretic deposition. The coatings exhibited excellent antibacterial activity, drug release capability, surface properties, corrosion resistance, and adhesion. These zein/cloves coatings have potential applications in orthopedics as they possess antimicrobial effects and can provide targeted drug delivery.
PROGRESS IN ORGANIC COATINGS
(2023)
Article
Green & Sustainable Science & Technology
Riying Qi, Xin Zhang, Aiqun Wu, Kuichuan Sheng, Hongjian Lin
Summary: This study prepared an active and stable stainless steel anode for sulfide removal by controlling the thickness and composition of the oxide films. The anode with 15 min pretreatment showed the best sulfide removal efficiency.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Chemistry, Multidisciplinary
Chen Ye, Yangguang Zhu, Hongyan Sun, Feiyue Chen, Huifang Sun, Wen Dai, Qiuping Wei, Li Fu, Aimin Yu, Shiyu Du, Minghui Yang, Liang-Feng Huang, Jinhong Yu, Nan Jiang, Cheng-Te Lin
Summary: Graphene nanosheets are widely used in anti-corrosion polymeric coating as filler due to their excellent electrochemical inertness and barrier property. However, the difficulty in forming a perfect layered structure leads to the need for micron-scale thickness in polymeric coatings with graphene nanosheets. In this study, layer-by-layer stacked graphene nanocoatings were fabricated on stainless steel using a self-assembly method based on the Marangoni effect. The anti-corrosion properties of the graphene coatings were evaluated, with the optimized three-layered graphene-coated sample showing significantly lower self-corrosion current density compared to bare stainless steel.
CHINESE CHEMICAL LETTERS
(2021)
Review
Biochemistry & Molecular Biology
Veronika Kozlovskaya, Eugenia Kharlampieva
Summary: The anisotropy in the shape of polymeric particles offers numerous advantages over spherical particles and has promising applications in biomedicine. The layer-by-layer assembly method allows for precise control over the chemical and physical properties of anisotropic particles, making them versatile and useful in various fields.
MACROMOLECULAR BIOSCIENCE
(2022)
Article
Polymer Science
Thomas Babut, Mona Semsarilar, Marc Rolland, Damien Quemener
Summary: In this study, a waterborne approach was proposed to co-assemble peptide amphiphiles (PA) and polyelectrolytes into porous membranes with nanostructured networks. Various production methods were explored to shape the material and optimize the structure, leading to a membrane material in the ultrafiltration range with a pore radius of about 7.6 nm.