Article
Engineering, Environmental
Sheng Zhou, Dengxian Wu, Zhihong Xu, Qing Jiang
Summary: Sporopollenin exine capsules (SECs) extracted from plant pollen are promising microcapsules for various bio-composite applications, but their hydrophobic interface hinders their use in biomaterials. This study demonstrates that surface functionalization of SECs with polypeptide multilayer films using layer-by-layer self-assembly technology improves their hydrophilicity, enabling better interaction with cells.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Polymer Science
Ana Mateos-Maroto, Laura Fernandez-Pena, Irene Abelenda-Nunez, Francisco Ortega, Ramon G. Rubio, Eduardo Guzman
Summary: This review provides an updated perspective on the various applications of polyelectrolyte multilayered capsules (PEMUCs) obtained using the Layer-by-Layer (LbL) method in the biomedical field, emphasizing the significant advantages offered by the LbL method for fabricating platforms for different disease detection and treatment.
Review
Chemistry, Multidisciplinary
Jie Li, Bogdan V. Parakhonskiy, Andre G. Skirtach
Summary: The article provides an overview of the fabrication methods and applications of polyelectrolyte multilayer capsules, highlighting the current trends and expanding range of applications.
CHEMICAL COMMUNICATIONS
(2023)
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)
Review
Chemistry, Multidisciplinary
Anna S. Vikulina, Jack Campbell
Summary: An undeniable trend in modern bioengineering and nanotechnology is the use of various biomolecules, primarily polymeric, for designing novel functional materials in controlled drug delivery, bioimaging, tissue engineering, and other bioapplications. Biogenic polymers with features like biocompatibility, biodegradability, replicating natural cellular microenvironments, and minimal toxicity, have gained growing interest as building blocks for fourth-generation biomaterials. Recent studies highlight the promise of hard-templating approach in fabricating nano- and microparticles using biopolymers, covering up-to-date knowledge on this topic and assessing the progress and challenges in the field.
Article
Chemistry, Physical
Xin Tan, Shiming Li, Renwang Sheng, Qianli Zhang, Chunyang Li, Ling Liu, Yu Zhang, Liqin Ge
Summary: Biointerfacial giant multilayer microcapsules (BGMs) with high-density drug loading and high-efficiency magnetic delivery were fabricated using the layer-by-layer self-assembly technique. These BGMs exhibited sustained drug release and magnetic properties, effectively inhibiting tumor growth and reducing side effects.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Review
Pharmacology & Pharmacy
Clea Chesneau, Laura Larue, Sabrina Belbekhouche
Summary: This review focuses on the design and application of polysaccharide-based capsules, which can be used as a versatile platform for drug delivery purposes. By utilizing porous particles as a template and using the layer-by-layer technique, biopolyelectrolyte capsules can be fabricated. The major steps of capsule design, including fabrication, coating, removal of the template, characterization, and application in the biomedical field are discussed.
Article
Chemistry, Physical
Peng Li, Muan Yu, Kang Gao, Kuo Chen, Xiujie Yang, Haixiang Sun, Yingfei Hou, Q. Jason Niu
Summary: The polyethyleneimine (PEI)/graphene oxide (GO) film prepared by ultrasonic atomization-assisted technology shows excellent hydrogen barrier properties and saves time and waste liquid compared to traditional methods. The optimal conditions for film preparation were found to be a GO concentration of 0.9 mg ml-1, a spray time of 8 s for PEI and 20 s for GO, a pH of 10 for PEI and 4 for GO, and 25 layers of assembled film. The hydrogen transmission rate of the PEI/GO composite film was significantly lower, by 92.38%, than that of the PET substrate film.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
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
Materials Science, Multidisciplinary
Jianhui Liu, Sarah L. Perry, Ben Zhong Tang, Matthew V. Tirrell
Summary: This study reports pH-responsive complex coacervates that remain intact under acidic conditions and dissolve in alkaline conditions, showing potential for oral delivery to the gastrointestinal tract.
Article
Polymer Science
Alireza Eivazi, Bruno Medronho, Bjorn Lindman, Magnus Norgren
Summary: In this study, cellulose-based core-shell particles were developed using the Layer-by-Layer (LbL) technique by alternating two cellulose derivatives onto a cationic vesicular template. The size of the particles could be tuned by controlling the number of layers deposited, with pH having a significant effect on the process. This work demonstrates the electrostatic driving force for LbL deposition and the potential advantages of using biobased containers for pharmaceutical and biomedical applications.
Article
Chemistry, Physical
Liqin Ge, Xin Tan, Renwang Sheng, Jun Xiao
Summary: Giant polyelectrolyte microcapsules (GMs) with huge cavities and extremely low wall-to-diameter ratios were successfully fabricated using microbubbles as templates and layer-by-layer self-assembly technology. They have potential applications as drug delivery systems.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Polymer Science
Peng Li, Congcong Miao, Kang Gao, Hongxue Xie, Kuo Chen, Tengteng Xie, Shengchao Zhao, Haixiang Sun, Xiujie Yang, Yingfei Hou, Q. Jason Niu
Summary: Graphene oxide (GO) can be self-assembled with various polymer materials layer by layer to prepare composite materials with excellent barrier properties. However, the process is cumbersome and time-consuming. In this article, GO/polyethyleneimine(PEI) hydrogen barrier films were successfully prepared by ultrasonic-assisted layer-by-layer self-assembly technology. Results show that the ultrasonic-assisted method not only reduced the immersion time from several minutes to 10 s, but also increased the density of the material packing to reduce the channels through which hydrogen molecules can diffuse while improving the horizontal orientation of the GO sheet to prolong the diffusion paths of gas molecules. Finally, the hydrogen transmission rate of 20-bilayer films assembled under ultrasonic conditions is equivalent to that of 30-bilayer films assembled without ultrasonic conditions, which greatly shortens the film-making period. Therefore, the ultrasonic-assisted method has a good prospect in the preparation of gas barrier films.
JOURNAL OF APPLIED POLYMER SCIENCE
(2023)
Article
Engineering, Biomedical
Phuong Le Tran, Ju-Hyun Kim, Young-Heun Jung, Dong-Cheol Lee, Jeong Uk Choi, Duy Ngoc Le, Joo-Won Nam, Manju Shrestha, Ju-Yeon Kim, Tung Thanh Pham, Jee-Heon Jeong
Summary: This study presents a strategy for site-specific delivery of an immunosuppressant using layer-by-layer assembly of polymeric particles and collagen on pancreatic islets. The controlled release of the drug achieved therapeutic effects in a rodent model of type 1 diabetes, offering potential for improved outcomes and safety in cell therapies for curing the disease.
Article
Polymer Science
Alejandra Romero-Montero, Isabel S. Aguirre-Diaz, Jordi Puiggali, Luis J. del Valle, Miquel Gimeno
Summary: The self-assembly behavior and nano-morphologies of chemoenzymatic high molecular weight poly-l-phenylalanine (ePLP) were investigated. The addition of HFIP co-solvent induced a transition from a non-ordered secondary structure to an alpha-helix, with temperature and hydrogen bonding playing important roles in structural stabilization and nanotube formation. The highly homogeneous nanotubes showed stable conductivity and high orientation and stabilization by intra- and intermolecular hydrogen bonds, allowing for potential drug delivery applications.
Article
Chemistry, Multidisciplinary
Na Huang, Yuqing Liu, Yisheng Fang, Siting Zheng, Jianhua Wu, Miaohong Wang, Wen Zhong, Min Shi, Malcolm Xing, Wangjun Liao
Article
Chemistry, Multidisciplinary
Qiang Chang, Yunfan He, Yuqing Liu, Wen Zhong, Quan Wang, Feng Lu, Malcolm Xing
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Yunfan He, Soroosh Derakhshanfar, Wen Zhong, Bingyun Li, Feng Lu, Malcolm Xing, Xiaojian Li
JOURNAL OF NANOMATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Helen H. Hsu, Yuqing Liu, Ying Wang, Bingyun Li, Gaoxing Luo, Malcolm Xing, Wen Zhong
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2020)
Article
Nanoscience & Nanotechnology
Shichao Zhang, Justin Vaida, Josh Parenti, Brock A. Lindsey, Malcolm Xing, Bingyun Li
Summary: A flower-inspired nanofilm was developed for the co-delivery of multiple drugs for trauma treatment. The nanocarriers achieved sustained and on-demand delivery of immune-tuning cytokines and growth factors, resulting in significant improvements in anti-infection and bone regeneration in treating infected rat femur fractures.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Rebeca Arambula-Maldonado, Armin Geraili, Malcolm Xing, Kibret Mequanint
Summary: Tissue engineering and regenerative medicine have advanced significantly over the past 30 years, with key modules including cells, biodegradable scaffolds, bioreactors, and biomolecules. These fields involve various disciplines such as biological sciences, chemical engineering, materials chemistry, and polymer processing, requiring a deep understanding of viscous fluid flow, mass transfer, and reaction engineering.
CANADIAN JOURNAL OF CHEMICAL ENGINEERING
(2021)
Article
Multidisciplinary Sciences
Yicheng Guo, Ying Wang, Xiaohong Zhao, Xue Li, Quan Wang, Wen Zhong, Kibret Mequanint, Rixing Zhan, Malcolm Xing, Gaoxing Luo
Summary: The study introduces a novel visible light-induced blood-resistant hemostatic adhesive (HAD) that efficiently achieves hemostasis by activating and aggregating platelets. HAD demonstrates excellent hemostatic performance on liver incision and severed rat tail, significantly reducing blood loss.
Article
Engineering, Biomedical
Leyu Wang, Yuqing Liu, Genlan Ye, Yutong He, Bingyun Li, Yezhi Guan, Baoyong Gong, Kibret Mequanint, Malcolm M. Q. Xing, Xiaozhong Qiu
Summary: Injectable and electrically conductive scaffolds with shape-memory behavior and hierarchical porous structure show promising results in functional repair of infarcted heart muscle in rats and minipigs, by increasing fractional shortening, ejection fraction, and reducing the infarcted area.
NATURE BIOMEDICAL ENGINEERING
(2021)
Article
Engineering, Chemical
Qingyang Li, Zhenghong Bao, Novruz G. Akhmedov, Benjamin A. Li, Yuhua Duan, Malcolm Xing, Jingxin Wang, Badie Morsi, Bingyun Li
Summary: The study reveals that the addition of amino acids like glycine in potassium carbonate solvents can lead to carbamate formation, and amino acids significantly enhance the absorption rate of CO2. The mixed solvent of potassium carbonate and amino acids may be an ideal choice for CO2 removal.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Biomedical
Yu Huang, Chaoqiang Fan, Yuqing Liu, Lu Yang, Weichao Hu, Shuang Liu, Tongchuan Wang, Zhenzhen Shu, Bingyun Li, Malcolm Xing, Shiming Yang
Summary: This article reports a sustainable and robust hemostatic bioadhesive from okra. The bioadhesive shows excellent adhesive strength and underwater adhesion, providing quick hemostasis and promoting wound healing.
ADVANCED HEALTHCARE MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Xingying Zhang, Chen Song, Huijia Nong, Kaige Xu, Xiaozhuo Wu, Wen Zhong, Malcolm Xing, Leyu Wang
Summary: An asymmetrical DIW hydrophobic/hydrophilic membrane was developed using heat-processed graphene oxide (GO) ink. Additionally, a Masked spin coating method was utilized to create a microscale GO/hydrophilic reduced GO (rGO) physiological sensor and a macroscale moisture-driven GO/rGO actuator. Depositing mussel-inspired polydopamine (PDA) coating on the one side of the DIW rGO resulted in a flexible and moisture-responsive PDA-rGO/hydrophilic rGO microlattice (ECP) that could attach to the curved surface of the epicardium without gaps. This conformable ECP demonstrated promising therapeutic effects on rats' infarcted hearts by reconstructing the conductive microenvironment and enhancing neovascularization.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Multidisciplinary Sciences
Yi Zhou, Lunan Yang, Zhen Liu, Yang Sun, Junfei Huang, Bingcheng Liu, Quan Wang, Leyu Wang, Yong Miao, Malcolm Xing, Zhiqi Hu
Summary: We developed a switchable hydrogel film adhesive with pattern-tunable wrinkles to control adhesion, addressing the challenges of on-demand adherence and detachment from tissue surfaces. The generated compressive stress from the bilayer system leads to self-similar wrinkling patterns at different wavelengths, regulating interfacial adhesion. We demonstrated the application of our adhesive in a random skin flap model, showing its potential for tissue sealing, neovascularization promotion, and gradual detachment through dynamic wrinkling pattern transition.
Article
Engineering, Biomedical
Wenyan Li, Kaige Xu, Yuqing Liu, Xuejiao Lei, Xufang Ru, Peiwen Guo, Hua Feng, Yujie Chen, Malcolm Xing
Summary: Hemostatic sealant is required in traumatic brain injury (TBI) surgery to deal with blood loss. Traditional gelatin-based sealants often cause blood loss and other issues due to hydrophilic gelatin swelling. By tuning the chain length of polystyrene (PS) onto methylacrylated gelatin (Gel-MA), the hydrophobicity and hemostatic efficiency can be controlled.
ADVANCED HEALTHCARE MATERIALS
(2023)
Review
Emergency Medicine
Kaige Xu, Xiaozhuo Wu, Xingying Zhang, Malcolm Xing
Summary: Bioadhesives play an important role in wound closure by preventing liquid and gas leakage and assisting in the stoppage of bleeding. Compared to traditional closures like suturing and stapling, tissue adhesives offer advantages such as minimal tissue damage, low infection risk, ease of use, and shorter wound closure time. While significant progress has been made in the development of tissue adhesives, there is still room for improvement. Therefore, summarizing existing adhesive designs and comparing different products will contribute to future advancements.
Article
Materials Science, Biomaterials
Wai Hei Tse, Sean Higgins, Daywin Patel, Malcolm Xing, Adrian R. West, Hagar I. Labouta, Richard Keijzer
Summary: Research has shown that maternal-fetal transfer of passive immunity can facilitate the transplacental transfer of IgG-modified nanoparticles, increasing their transport efficiency. Confocal microscopy revealed colocalization of FcRn and IgG-modified nanoparticles. Barrier function remained intact before and after nanoparticle administration.
BIOMATERIALS SCIENCE
(2022)