1
|
Carnes ME, Gonyea CR, Coburn JM, Pins GD. A biomimetic approach to modulating the sustained release of fibroblast growth factor 2 from fibrin microthread scaffolds. EXPLORATION OF BIOMAT-X 2024; 1:58-83. [PMID: 39070763 PMCID: PMC11274095 DOI: 10.37349/ebmx.2024.00006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 07/12/2023] [Indexed: 07/30/2024]
Abstract
Aim The pleiotropic effect of fibroblast growth factor 2 (FGF2) on promoting myogenesis, angiogenesis, and innervation makes it an ideal growth factor for treating volumetric muscle loss (VML) injuries. While an initial delivery of FGF2 has demonstrated enhanced regenerative potential, the sustained delivery of FGF2 from scaffolds with robust structural properties as well as biophysical and biochemical signaling cues has yet to be explored for treating VML. The goal of this study is to develop an instructive fibrin microthread scaffold with intrinsic topographic alignment cues as well as regenerative signaling cues and a physiologically relevant, sustained release of FGF2 to direct myogenesis and ultimately enhance functional muscle regeneration. Methods Heparin was passively adsorbed or carbodiimide-conjugated to microthreads, creating a biomimetic binding strategy, mimicking FGF2 sequestration in the extracellular matrix (ECM). It was also evaluated whether FGF2 incorporated into fibrin microthreads would yield sustained release. It was hypothesized that heparin-conjugated and co-incorporated (co-inc) fibrin microthreads would facilitate sustained release of FGF2 from the scaffold and enhance in vitro myoblast proliferation and outgrowth. Results Toluidine blue staining and Fourier transform infrared spectroscopy confirmed that carbodiimide-conjugated heparin bound to fibrin microthreads in a dose-dependent manner. Release kinetics revealed that heparin-conjugated fibrin microthreads exhibited sustained release of FGF2 over a period of one week. An in vitro assay demonstrated that FGF2 released from microthreads remained bioactive, stimulating myoblast proliferation over four days. Finally, a cellular outgrowth assay suggests that FGF2 promotes increased outgrowth onto microthreads. Conclusions It was anticipated that the combined effects of fibrin microthread structural properties, topographic alignment cues, and FGF2 release profiles will facilitate the fabrication of a biomimetic scaffold that enhances the regeneration of functional muscle tissue for the treatment of VML injuries.
Collapse
Affiliation(s)
- Meagan E. Carnes
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - Cailin R. Gonyea
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - Jeannine M. Coburn
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| | - George D. Pins
- Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA
| |
Collapse
|
2
|
Wang HY, Zhang Y, Zhang M, Zhang YQ. Functional modification of silk fibroin from silkworms and its application to medical biomaterials: A review. Int J Biol Macromol 2024; 259:129099. [PMID: 38176506 DOI: 10.1016/j.ijbiomac.2023.129099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/26/2023] [Accepted: 12/26/2023] [Indexed: 01/06/2024]
Abstract
Silk fibroin (SF) from the silkworm Bombyx mori is a fibrous protein identified as a widely suitable biomaterial due to its biocompatibility, tunable degradation, and mechanical strength. Various modifications of SF protein can give SF fibers new properties and functions, broadening their applications in textile and biomedical industries. A diverse array of functional modifications on various forms of SF has been reported. In order to provide researchers with a more systematic understanding of the types of functional modifications of SF protein, as well as the corresponding applications, we comprehensively review the different types of functional modifications, including transgenic modification, modifications with chemical groups or biologically active substance, cross-linking and copolymerization without chemical reactions, their specific modification methods and applications. Furthermore, recent applications of SF in various medical biomaterials are briefly discussed.
Collapse
Affiliation(s)
- Hai-Yan Wang
- Obstetrical department, The People's Hospital of Suzhou New District, Suzhou, China
| | - Yun Zhang
- Obstetrical department, The People's Hospital of Suzhou New District, Suzhou, China
| | - Meng Zhang
- Zhejiang Provincial Key Laboratory of Utilization and Innovation of Silkworm and Bee Resources, Institute of Applied Bioresource Research, College of Animal Science, Zhejiang University, Hangzhou, China
| | - Yu-Qing Zhang
- Silk Biotechnology Laboratory, School of Biology and Basic Medical Sciences, Soochow University, Suzhou, China.
| |
Collapse
|
3
|
Du M, Liu S, Lan N, Liang R, Liang S, Lan M, Feng D, Zheng L, Wei Q, Ma K. Electrospun PCL/gelatin/arbutin nanofiber membranes as potent reactive oxygen species scavengers to accelerate cutaneous wound healing. Regen Biomater 2024; 11:rbad114. [PMID: 38313825 PMCID: PMC10838213 DOI: 10.1093/rb/rbad114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 12/08/2023] [Indexed: 02/06/2024] Open
Abstract
The presence of excessive reactive oxygen species (ROS) at a skin wound site is an important factor affecting wound healing. ROS scavenging, which regulates the ROS microenvironment, is essential for wound healing. In this study, we used novel electrospun PCL/gelatin/arbutin (PCL/G/A) nanofibrous membranes as wound dressings, with PCL/gelatin (PCL/G) as the backbone, and plant-derived arbutin (hydroquinone-β-d-glucopyranoside, ARB) as an effective antioxidant that scavenges ROS and inhibits bacterial infection in wounds. The loading of ARB increased the mechanical strength of the nanofibres, with a water vapour transmission rate of more than 2500 g/(m2 × 24 h), and the water contact angle decreased, indicating that hydrophilicity and air permeability were significantly improved. Drug release and degradation experiments showed that the nanofibre membrane controlled the drug release and exhibited favourable degradability. Haemolysis experiments showed that the PCL/G/A nanofibre membranes were biocompatible, and DPPH and ABTS+ radical scavenging experiments indicated that PCL/G/A could effectively scavenge ROS to reflect the antioxidant activity. In addition, haemostasis experiments showed that PCL/G/A had good haemostatic effects in vitro and in vivo. In vivo animal wound closure and histological staining experiments demonstrated that PCL/G/A increased collagen deposition and remodelled epithelial tissue regeneration while showing good in vivo biocompatibility and non-toxicity. In conclusion, we successfully prepared a multifunctional wound dressing, PCL/G/A, for skin wound healing and investigated its potential role in wound healing, which is beneficial for the clinical translational application of phytomedicines.
Collapse
Affiliation(s)
- Mindong Du
- Department of Orthopaedics Trauma and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Shuhan Liu
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Nihan Lan
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Ruiming Liang
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Shengde Liang
- Department of Plastic & Cosmetic Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Maoqiang Lan
- Department of Plastic & Cosmetic Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Disen Feng
- Department of Plastic & Cosmetic Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Li Zheng
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| | - Qingjun Wei
- Department of Orthopaedics Trauma and Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
| | - Ke Ma
- Guangxi Engineering Center in Biomedical Materials for Tissue and Organ Regeneration, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Guangxi Collaborative Innovation Center for Biomedicine, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Department of Plastic & Cosmetic Surgery, The First Affiliated Hospital of Guangxi Medical University, Guangxi Medical University, Nanning 530021, China
- Pharmaceutical College, Guangxi Medical University, Nanning 530021, China
| |
Collapse
|
4
|
Thongkham M, Saenjaiban A, Jantanasakulwong K, Pattanawong W, Arjin C, Hongsibsong S, Rachtanapun P, Sringarm K. New insights from poly-lactic acid and ionomer films coupled with recombinant antibodies for processing sexed-sorting bovine sperm. Int J Biol Macromol 2024; 256:128425. [PMID: 38008136 DOI: 10.1016/j.ijbiomac.2023.128425] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 11/18/2023] [Accepted: 11/23/2023] [Indexed: 11/28/2023]
Abstract
In this study, the efficacy of ionomers and poly-lactic acid (PLA) as an alternative solid material combined with scFv antibodies specific to bovine Y-sperm (Y-scFv) was studied to create a novel method of sexing technology. The coupling efficiency of Y-scFv to the surface of PLA, Na+ and Zn2+ ionomer film was between 2 and 8 mg/mL. Fourier transform infrared spectra confirm that Y-scFv was bound with a carboxylic acid group in each film. Therefore, Na+, Zn2+ ionomers and PLA films conjugated with 4 and 8 mg/mL Y-scFv showed the highest concentration of Y-sperm in the eluted fraction. Considering that the elute fraction was enriched Y-sperm fraction, it contained 67.70-77.94 % of the Y-sperm ratio related to the produced supernatant fraction, which contained up to 69.31-76.01 % enriched X-sperm. In addition, the sperm quality after the sexing process was analyzed by CASA and imaging flow cytometry, which showed that each polymer did not have a negative effect on sperm motility and acrosome integrity for X-sperm. The capacity of ionomer and PLA combined with Y-scFv are used for bovine sperm sexing.
Collapse
Affiliation(s)
- Marninphan Thongkham
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Aphisit Saenjaiban
- Doctor of Philosophy Program in Nanoscience and Nanotechnology (International Program/Interdisciplinary), Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Kittisak Jantanasakulwong
- Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand; Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Wiwat Pattanawong
- Faculty of Animal Science and Technology, Maejo University, Chiang Mai 50290, Thailand
| | - Chaiwat Arjin
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; Cluster of Valorization and Bio-Green Transformation for Translational Research Innovation of Raw Materials and Products, Chiang Mai University, 50200, Thailand
| | - Surat Hongsibsong
- Cluster of Valorization and Bio-Green Transformation for Translational Research Innovation of Raw Materials and Products, Chiang Mai University, 50200, Thailand; School of Health Sciences Research, Research Institute for Health Sciences, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Pornchai Rachtanapun
- Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50200, Thailand; Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Korawan Sringarm
- Department of Animal and Aquatic Sciences, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand; Cluster of Valorization and Bio-Green Transformation for Translational Research Innovation of Raw Materials and Products, Chiang Mai University, 50200, Thailand; Cluster of Agro Bio-Circular-Green Industry, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand.
| |
Collapse
|
5
|
Wen HY, Chiang CC, Chen RY, Ni WZ, Weng YQ, Yeh YT, Hsu HC. Immunosensing for Early Detection of Rheumatoid Arthritis Biomarkers: Anti-Cyclic Citrullinated Peptide Antibodies Based on Tilted-Fiber Bragg Grating Biosensor. Bioengineering (Basel) 2023; 10:bioengineering10020261. [PMID: 36829755 PMCID: PMC9952665 DOI: 10.3390/bioengineering10020261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/10/2023] [Accepted: 02/14/2023] [Indexed: 02/18/2023] Open
Abstract
Rheumatoid arthritis (RA) is regarded as a chronic, immune-mediated disease that leads to the damage of various types of immune cells and signal networks, followed by inappropriate tissue repair and organ damage. RA is primarily manifested in the joints, but also manifests in the lungs and the vascular system. This study developed a method for the in vitro detection of RA through cyclic citrullinated peptide (CCP) antibodies and antigens. The diameter of a tilted-fiber Bragg grating (TFBG) biosensor was etched to 50 μm and then bonded with CCP antigens and antibodies. The small variations in the external refractive index and the optical fiber cladding were measured. The results indicated that the self-assembled layer of the TFBG biosensor was capable of detecting pre- and post-immune CCP antigen and CCP peptide concentrations within four minutes. A minimum CCP concentration of 1 ng/mL was detected with this method. This method is characterized by the sensor's specificity, ability to detect CCP reactions, user-friendliness, and lack of requirement for professional analytical skills, as the detections are carried out by simply loading and releasing the test samples onto the platform. This study provides a novel approach to medical immunosensing analysis and detection. Although the results for the detection of different concentrations of CCP antigen are not yet clear, it was possible to prove the concept that the biosensor is feasible even if the measurement is not easy and accurate at this stage. Further study and improvement are required.
Collapse
Affiliation(s)
- Hsin-Yi Wen
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Chia-Chin Chiang
- Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Rou-Yu Chen
- Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Wei-Zhi Ni
- Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Yu-Qiao Weng
- Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
| | - Yao-Tsung Yeh
- Department of Medical Laboratory Science and Biotechnology, Fooyin University, Kaohsiung 83102, Taiwan
| | - Hsiang-Cheng Hsu
- Department of Mechanical Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan
- Correspondence:
| |
Collapse
|
6
|
Inam AKMS, Angeli MAC, Douaki A, Shkodra B, Lugli P, Petti L. An Aptasensor Based on a Flexible Screen-Printed Silver Electrode for the Rapid Detection of Chlorpyrifos. SENSORS 2022; 22:s22072754. [PMID: 35408368 PMCID: PMC9003324 DOI: 10.3390/s22072754] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 03/24/2022] [Accepted: 03/30/2022] [Indexed: 11/16/2022]
Abstract
In this work, we propose a novel disposable flexible and screen-printed electrochemical aptamer-based sensor (aptasensor) for the rapid detection of chlorpyrifos (CPF). To optimize the process, various characterization procedures were employed, including Fourier transform infrared spectroscopy (FT-IR), electrochemical impedance spectroscopy (EIS), and cyclic voltammetry (CV). Initially, the aptasensor was optimized in terms of electrolyte pH, aptamer concentration, and incubation time for chlorpyrifos. Under optimal conditions, the aptasensor showed a wide linear range from 1 to 105 ng/mL with a calculated limit of detection as low as 0.097 ng/mL and sensitivity of 600.9 µA/ng. Additionally, the selectivity of the aptasensor was assessed by identifying any interference from other pesticides, which were found to be negligible (with a maximum standard deviation of 0.31 mA). Further, the stability of the sample was assessed over time, where the reported device showed high stability over a period of two weeks at 4 °C. As the last step, the ability of the aptasensor to detect chlorpyrifos in actual samples was evaluated by testing it on banana and grape extracts. As a result, the device demonstrated sufficient recovery rates, which indicate that it can find application in the food industry.
Collapse
Affiliation(s)
- A. K. M. Sarwar Inam
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
- Department of Nutrition and Food Engineering, Daffodil International University, Dhaka 1207, Bangladesh
| | - Martina Aurora Costa Angeli
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
- Correspondence:
| | - Ali Douaki
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
| | - Bajramshahe Shkodra
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
| | - Paolo Lugli
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
| | - Luisa Petti
- Sensing Technologies Laboratory, Faculty of Science and Technology, Free University of Bozen-Bolzano, 39100 Bolzano, Italy; (A.K.M.S.I.); (A.D.); (B.S.); (P.L.); (L.P.)
| |
Collapse
|
7
|
Gelation Methods to Assemble Fibrous Proteins. Methods Mol Biol 2022; 2347:149-165. [PMID: 34472063 DOI: 10.1007/978-1-0716-1574-4_14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Gelation is an efficient way to fabricate fibrous protein materials. Briefly, it is an aggregation process where protein molecules assembly from a random structure into an organized structure such as nanofibrillar networks. According to their mechanisms, the fibrous proteins gelation can be classified into physical gelation and chemical gelation. The physical gelation is formed by the conformational transformation of fibroin proteins, which can be triggered by temperature, concentration, pH, or shear force. On the other hand, the chemical gelation is to cross-link fibrous proteins through chemical and/or enzymatic reactions. In this chapter, we summarize the protocols for preparing fibrous protein hydrogels, including both physical and chemical methods. The mechanisms of these gelation methods are also highlighted.
Collapse
|
8
|
Baig U, Waheed A, Salih HA, Matin A, Alshami A, Aljundi IH. Facile Modification of NF Membrane by Multi-Layer Deposition of Polyelectrolytes for Enhanced Fouling Resistance. Polymers (Basel) 2021; 13:3728. [PMID: 34771283 PMCID: PMC8588481 DOI: 10.3390/polym13213728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 11/16/2022] Open
Abstract
Fouling not only deteriorates the membrane structure but also compromises the quality of the permeate and has deleterious consequences on the membrane operation. In the current study, a commercial thin film composite nanofiltration membrane (NF90) was modified by sequentially depositing oppositely charged polycation (poly(allylamine hydrochloride)) and polyanion (poly(acrylic acid)) polyelectrolytes using the layer-by-layer assembly method. The water contact angle was decreased by ~10° after the coating process, indicating increased hydrophilicity. The surface roughness of the prepared membranes decreased from 380 nm (M-0) to 306 nm (M-10) and 366 nm (M-20). M-10 membrane showed the highest permeate flux of 120 L m-2 h-1 with a salt rejection of >98% for MgSO4 and NaCl. The fabricated membranes M-20 and M-30 showed 15% improvement in fouling resistance and maintained the initial permeate flux longer than the pristine membrane.
Collapse
Affiliation(s)
- Umair Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (U.B.); (A.W.); (A.M.)
| | - Abdul Waheed
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (U.B.); (A.W.); (A.M.)
| | - Hassan A. Salih
- College of Engineering, Khalifa University, Abu Dhabi 127788, United Arab Emirates;
| | - Asif Matin
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (U.B.); (A.W.); (A.M.)
| | - Ali Alshami
- Chemical Engineering Department, University of North Dakota, Grand Forks, ND 58202, USA;
| | - Isam H. Aljundi
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia; (U.B.); (A.W.); (A.M.)
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| |
Collapse
|
9
|
Succinylation of Polyallylamine: Influence on Biological Efficacy and the Formation of Electrospun Fibers. Polymers (Basel) 2021; 13:polym13172840. [PMID: 34502880 PMCID: PMC8433649 DOI: 10.3390/polym13172840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/17/2021] [Accepted: 08/21/2021] [Indexed: 11/17/2022] Open
Abstract
Succinylation of proteins is a commonly encountered reaction in biology and introduces negatively charged carboxylates on previously basic primary amine groups of amino acid residues. In analogy, this work investigates the succinylation of primary amines of the synthetic polyelectrolyte polyallylamine (PAA). It investigates the influence of the degree of succinylation on the cytotoxicity and antibacterial activity of the resulting polymers. Succinylation was performed in water with varying amounts of succinic anhydride and at different pH values. The PAA derivatives were analyzed in detail with respect to molecular structure using nuclear magnetic resonance and infrared absorbance spectroscopy. Polyelectrolyte and potentiometric charge titrations were used to elucidate charge ratios between primary amines and carboxylates in the polymers. The obtained materials were then evaluated with respect to their minimum inhibitory concentration against Staphylococcus aureus and Pseudomonas aeruginosa. The biocompatibility was assessed using mouse L929 fibroblasts. The degree of succinylation decreased cytotoxicity but more significantly reduced antibacterial efficacy, demonstrating the sensitivity of the fibroblast cells against this type of ampholytic polyelectrolytes. The obtained polymers were finally electrospun into microfiber webs in combination with neutral water-soluble polyvinyl alcohol. The resulting non-woven could have the potential to be used as wound dressing materials or coatings.
Collapse
|
10
|
Ashcraft M, Douglass M, Chen Y, Handa H. Combination strategies for antithrombotic biomaterials: an emerging trend towards hemocompatibility. Biomater Sci 2021; 9:2413-2423. [PMID: 33599226 PMCID: PMC8035307 DOI: 10.1039/d0bm02154g] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Surface-induced thrombosis is a frequent, critical issue for blood-contacting medical devices that poses a serious threat to patient safety and device functionality. Antithrombotic material design strategies including the immobilization of anticoagulants, alterations in surface chemistries and morphology, and the release of antithrombotic compounds have made great strides in the field with the ultimate goal of circumventing the need for systemic anticoagulation, but have yet to achieve the same hemocompatibility as the native endothelium. Given that the endothelium achieves this state through the use of many mechanisms of action, there is a rising trend in combining these established design strategies for improved antithrombotic actions. Here, we describe this emerging paradigm, highlighting the apparent advantages of multiple antithrombotic mechanisms of action and discussing the demonstrated potential of this new direction.
Collapse
Affiliation(s)
- Morgan Ashcraft
- School of Chemical, Materials and Biomedical Engineering, College of Engineering, University of Georgia, Athens, Georgia 30602, USA.
| | | | | | | |
Collapse
|
11
|
Niu L, Shi M, Feng Y, Sun X, Wang Y, Cheng Z, Li M. The Interactions of Quantum Dot-Labeled Silk Fibroin Micro/Nanoparticles with Cells. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3372. [PMID: 32751473 PMCID: PMC7436185 DOI: 10.3390/ma13153372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2020] [Revised: 07/25/2020] [Accepted: 07/27/2020] [Indexed: 11/16/2022]
Abstract
When silk fibroin particles are used for controlled drug delivery, particle size plays a key role in the location of the carrier on the cells as well as the transport pathway, utilization efficiency, and therapeutic effect of the drugs. In this study, the interactions of different-sized silk fibroin particles and cell lines were investigated. Silk fibroin microparticles with dry size of 1.9 ± 0.4 μm (2.7 ± 0.3 μm in wet state) and silk fibroin nanoparticles with dry size of 51.5 ± 11.0 nm (174.8 ± 12.5 nm in wet state) were prepared by salting-out method and high-voltage electrospray method, respectively. CdSe/ZnS quantum dots were coupled to the surface of the micro/nanoparticles. Photostability observations indicated that the fluorescence stability of the quantum dots was much higher than that of fluorescein isothiocyanate. In vitro, microparticles and nanoparticles were co-cultured with human umbilical vein endothelial cells EA.hy 926 and cervical cancer cells HeLa, respectively. The fluorescence test and cell viability showed that the EA.hy926 cells tended to be adhered to the microparticle surfaces and the cell proliferation was significantly promoted, while the nanoparticles were more likely to be internalized in HeLa cells and the cell proliferation was notably inhibited. Our findings might provide useful information concerning effective drug delivery that microparticles may be preferred if the drugs need to be delivered to normal cell surface, while nanoparticles may be preferred if the drugs need to be transmitted in tumor cells.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren’ai Road, Industrial Park, Suzhou 215123, China; (L.N.); (M.S.); (Y.F.); (X.S.); (Y.W.); (Z.C.)
| |
Collapse
|
12
|
Kasoju N, Pátíková A, Wawrzynska E, Vojtíšková A, Sedlačík T, Kumorek M, Pop-Georgievski O, Sticová E, KříŽ J, Kubies D. Bioengineering a pre-vascularized pouch for subsequent islet transplantation using VEGF-loaded polylactide capsules. Biomater Sci 2020; 8:631-647. [PMID: 31729495 DOI: 10.1039/c9bm01280j] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The effectiveness of cell transplantation can be improved by optimization of the transplantation site. For some types of cells that form highly oxygen-demanding tissue, e.g., pancreatic islets, a successful engraftment depends on immediate and sufficient blood supply. This critical point can be avoided when cells are transplanted into a bioengineered pre-vascularized cavity which can be formed using a polymer scaffold. In our study, we tested surface-modified poly(lactide-co-caprolactone) (PLCL) capsular scaffolds containing the pro-angiogenic factor VEGF. After each modification step (i.e., amination and heparinization), the surface properties and morphology of scaffolds were characterized by ATR-FTIR and XPS spectroscopy, and by SEM and AFM. All modifications preserved the gross capsule morphology and maintained the open pore structure. Optimized aminolysis conditions decreased the Mw of PLCL only up to 10% while generating a sufficient number of NH2 groups required for the covalent immobilization of heparin. The heparin layer served as a VEGF reservoir with an in vitro VEGF release for at least four weeks. In vivo studies revealed that to obtain highly vascularized PLCL capsules (a) the optimal VEGF dose for the capsule was 50 μg and (b) the implantation time was four weeks when implanted into the greater omentum of Lewis rats; dense fibrous tissue accompanied by vessels completely infiltrated the scaffold and created sparse granulation tissue within the internal cavity of the capsule. The prepared pre-vascularized pouch enabled the islet graft survival and functioning for at least 50 days after islet transplantation. The proposed construct can be used to create a reliable pre-vascularized pouch for cell transplantation.
Collapse
Affiliation(s)
- Naresh Kasoju
- Institute of Macromolecular Chemistry Czech Academy of Sciences, Heyrovsky sq.2, Prague 162 06, Czech Republic.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
13
|
Lai YH, Chiang CS, Hsu CH, Cheng HW, Chen SY. Development and Characterization of a Fucoidan-Based Drug Delivery System by Using Hydrophilic Anticancer Polysaccharides to Simultaneously Deliver Hydrophobic Anticancer Drugs. Biomolecules 2020; 10:E970. [PMID: 32605162 PMCID: PMC7408464 DOI: 10.3390/biom10070970] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 06/25/2020] [Accepted: 06/26/2020] [Indexed: 12/12/2022] Open
Abstract
Fucoidan, a natural sulfated polysaccharide, which can activate the immune response and lessen adverse effects, is expected to be an adjuvant agent in combination with chemotherapy. Using natural hydrophilic anticancer polysaccharides to simultaneously encapsulate hydrophobic anticancer drugs is feasible, and a reduced side effect can be achieved to amplify the therapeutic efficacy. In this study, a novel type of fucoidan-PLGA nanocarrier (FPN-DTX) was developed for the encapsulation of the hydrophobic anticancer drug, docetaxel (DTX), as a drug delivery system. From the comparison between FPN-DTX and the PLGA particles without fucoidan (PLGA-DTX), FPNs-DTX with fucoidan were highly stable with smaller sizes and dispersed well without aggregations in an aqueous environment. The drug loading and release can be further modified by modulating relative ratios of Fucoidan (Fu) to PLGA. The (FPN 3-DTX) nanoparticles with a 10:3 ratio of Fu:PLGA displayed uniform particle size with higher encapsulation efficiency than PLGA NPs and sustained drug release ability. The biocompatible fucoidan-PLGA nanoparticles displayed low cytotoxicity without drug loading after incubation with MDA-MB-231 triple-negative breast cancer cells. Despite lower cellular uptake than that of PLGA-DTX due to a higher degree of negative zeta potential and hydrophilicity, FPN 3-DTX effectively exerted better anticancer ability, so FPN 3-DTX can serve as a competent drug delivery system.
Collapse
Affiliation(s)
- Yen-Ho Lai
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan; (Y.-H.L.); (C.-H.H.); (H.-W.C.)
| | - Chih-Sheng Chiang
- Cell Therapy Center, China Medical University Hospital, Taichung 40454, Taiwan;
| | - Chin-Hao Hsu
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan; (Y.-H.L.); (C.-H.H.); (H.-W.C.)
| | - Hung-Wei Cheng
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan; (Y.-H.L.); (C.-H.H.); (H.-W.C.)
| | - San-Yuan Chen
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan; (Y.-H.L.); (C.-H.H.); (H.-W.C.)
- Frontier Research Centre on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
- School of Dentistry, College of Dental Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Graduate Institute of Biomedical Science, China Medical University, Taichung 40454, Taiwan
| |
Collapse
|
14
|
Wang Y, Ma B, Yin A, Zhang B, Luo R, Pan J, Wang Y. Polycaprolactone vascular graft with epigallocatechin gallate embedded sandwiched layer-by-layer functionalization for enhanced antithrombogenicity and anti-inflammation. J Control Release 2020; 320:226-238. [PMID: 31982435 DOI: 10.1016/j.jconrel.2020.01.043] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Revised: 01/18/2020] [Accepted: 01/21/2020] [Indexed: 11/15/2022]
Abstract
Small-diameter artificial vascular grafts modified with layer-by-layer (LBL) coating show promise in reducing the failure caused by thrombosis and inflammation, but undesirable stability and bioactivity issues of the coating and payload usually limits their long-term efficacy. Herein, inspired by catechol/gallol surface chemistry, a sandwiched layer-by-layer coating constructed by polyethyleneimine (PEI) and heparin with the embedding of epigallocatechin gallate (EGCG)-dexamethasone combination was used to modify the electrospun polycaprolactone (PCL) vascular grafts. Polyphenol embedding endowed the coating with abundant intermolecular interactions between each coating components, mainly contributed by the π-π stacking, weak intermolecular cross-linking and enriched hydrogen bonding, which further enhanced the coating stability and also supported the sustained release of the payloads, like polyelectrolytes and drugs. Compared with the conventional LBL coating, the loading amounts of heparin and dexamethasone in the EGCG embedded LBL coatings doubled and the drug release could be significantly prolonged without serious initial burst. The in vitro and ex vivo assays indicated that the modified PCL vascular grafts would address impressive prolonged anti-platelet adhesion/activation and anti-fibrinogen denaturation ability. Meanwhile, the dexamethasone loading entrusted the sandwiched LBL coating with mild tissue response, in terms of inhibiting the macrophage activation. These results strongly demonstrated that the sandwiched LBL coating with EGCG embedding was an effective method to improve the patency rates of PCL small artificial vascular grafts, which could also be extended to other blood-contacting materials.
Collapse
Affiliation(s)
- Yanan Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Boxuan Ma
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Anlin Yin
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Bo Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China
| | - Rifang Luo
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China.
| | - Junqiang Pan
- Department of Cardiovascular Medicine, Xi'an Central Hospital, Xi'an 710003, China.
| | - Yunbing Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, Sichuan 610065, China.
| |
Collapse
|
15
|
Saleem M, Rasheed S, Yougen C. Silk fibroin/hydroxyapatite scaffold: a highly compatible material for bone regeneration. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2020; 21:242-266. [PMID: 32489483 PMCID: PMC7241470 DOI: 10.1080/14686996.2020.1748520] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 03/25/2020] [Accepted: 03/25/2020] [Indexed: 05/06/2023]
Abstract
In recent years remarkable efforts have been made to produce artificial bone through tissue engineering techniques. Silk fibroin (SF) and hydroxyapatite (HA) have been used in bone tissue regeneration as biomaterials due to mechanical properties of SF and biocompatibility of HA. There has been growing interest in developing SF/HA composites to reduce bone defects. In this regard, several attempts have been made to study the biocompatibility and osteoconductive properties of this material. This article overviews the recent advance from last few decades in terms of the preparative methods and application of SF/HA in bone regeneration. Its first part is related to SF that presents the most common sources, preparation methods and comparison of SF with other biomaterials. The second part illustrates the importance of HA by providing information about its production and properties. The third part presents comparative studies of SF/HA composites with different concentrations of HA along with methods of preparation of composites and their applications.
Collapse
Affiliation(s)
- Muhammad Saleem
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, Guangdong, 518060, China
- Department of Optoelectronic Science and Technology, 518060, Shenzhen University, P.R China
- Department of Chemistry, University of Kotli, AzadJammu and Kashmir
| | - Sidra Rasheed
- Department of Chemistry, University of Kotli, AzadJammu and Kashmir
- Interdisciplinary Research Centre in Biomedical Materials, COMSATS Institute of Information Technology, Defence Road, Off. Raiwind Road, Lahore, 54000, Pakistan
| | - Chen Yougen
- Institute for Advanced Study, Shenzhen University, Nanshan District, Shenzhen, Guangdong, 518060, China
- Department of Optoelectronic Science and Technology, 518060, Shenzhen University, P.R China
- CONTACT Chen Yougen Institute for Advanced Study, Shenzhen University, Shenzhen, Guangdong518060, China
| |
Collapse
|
16
|
Chen YR, Zhou ZX, Zhang JY, Yuan FZ, Xu BB, Guan J, Han C, Jiang D, Yang YY, Yu JK. Low-Molecular-Weight Heparin-Functionalized Chitosan-Chondroitin Sulfate Hydrogels for Controlled Release of TGF-β3 and in vitro Neocartilage Formation. Front Chem 2019; 7:745. [PMID: 31737612 PMCID: PMC6839338 DOI: 10.3389/fchem.2019.00745] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/17/2019] [Indexed: 12/16/2022] Open
Abstract
Repair of hyaline cartilage remains a huge challenge in clinic because of the avascular and aneural characteristics and the paucity of endogenous repair cells. Recently, tissue engineering technique, possessing unique capacity of repairing large tissue defects, avoiding donor complications and two-stage invasive surgical procedures, has been developed a promising therapeutic strategy for cartilage injury. In this study, we incorporated low-molecular-weight heparin (LMWH) into carboxymethyl chitosan-oxidized chondroitin sulfate (CMC-OCS) hydrogel for loading transforming growth factor-β3 (TGF-β3) as matrix of peripheral blood mesenchymal stem cells (PB-MSCs) to construct tissue-engineered cartilage. Meanwhile, three control hydrogels with or without LMWH and/or TGF-β3 were also prepared. The gelling time, microstructures, mechanical properties, degradation rate, cytotoxicity, and the release of TGF-β3 of different hydrogels were investigated. In vitro experiments evaluated the tri-lineage differentiation potential of PB-MSCs, combined with the proliferation, distribution, viability, morphology, and chondrogenic differentiation. Compared with non-LMWH-hydrogels, LMWH-hydrogels (LMWH-CMC-OCS-TGF-β3) have shorter gelling time, higher mechanical strength, slower degradation rate and more stable and lasting release of TGF-β3. After two weeks of culture in vitro, expression of cartilage-specific genes collagen type-2 (COL-2) and aggrecan (AGC), and secretion of glycosaminoglycan (GAG), and COL-2 proteins in LMWH-CMC-OCS-TGF-β3 group were significantly higher than those in other groups. COL-2 immunofluorescence staining showed that the proportion of COL-2 positive cells and immunofluorescence intensity in LMWH-CMC-OCS-TGF-β3 hydrogel were significantly higher than those in other groups. The LMWH-CMC-OCS-TGF-β3 hydrogel can slowly release TGF-β3 in a long term, and meanwhile the hydrogel can provide a biocompatible microenvironment for the growth and chondrogenic differentiation of PB-MSCs. Thus, LMWH functionalized CMC-OCS hydrogels proposed in this work will be beneficial for constructing functional scaffolds for tissue-engineered cartilage.
Collapse
Affiliation(s)
- You-Rong Chen
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Zhu-Xing Zhou
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Ji-Ying Zhang
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Fu-Zhen Yuan
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Bing-Bing Xu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Jian Guan
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Chao Han
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China.,School of Clinical Medicine, Weifang Medical University, Weifang, China
| | - Dong Jiang
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| | - Yan-Yu Yang
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics & Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.,College of Materials Science and Engineering, Zhengzhou University, Zhengzhou, China
| | - Jia-Kuo Yu
- Knee Surgery Department of the Institute of Sports Medicine, Peking University Third Hospital, Beijing, China
| |
Collapse
|
17
|
A heparin-functionalized woven stent graft for endovascular exclusion. Colloids Surf B Biointerfaces 2019; 180:118-126. [DOI: 10.1016/j.colsurfb.2019.04.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 03/26/2019] [Accepted: 04/12/2019] [Indexed: 11/21/2022]
|
18
|
Restraining fluoride loss from NaYF4:Yb3+,Er3+ upconverting nanoparticles in aqueous environments using crosslinked poly(acrylic acid)/poly(allylamine hydrochloride) multilayers. J Colloid Interface Sci 2019; 538:320-326. [DOI: 10.1016/j.jcis.2018.11.094] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 11/22/2018] [Accepted: 11/24/2018] [Indexed: 12/20/2022]
|
19
|
Wang S, Attah R, Li J, Chen Y, Chen R. A pH-Responsive Amphiphilic Hydrogel Based on Pseudopeptides and Poly(ethylene glycol) for Oral Delivery of Hydrophobic Drugs. ACS Biomater Sci Eng 2018; 4:4236-4243. [PMID: 33418822 DOI: 10.1021/acsbiomaterials.8b01040] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Oral administration is a noninvasive and convenient drug delivery route most preferred by patients. However, poor stability in the gastrointestinal tract and low bioavailability of hydrophobic drugs has greatly limited their oral administration. To address this problem, we report a pH-responsive, amphiphilic hydrogel drug carrier based on a pseudopeptide poly(l-lysine isophthalamide) (PLP) and poly(ethylene glycol) (PEG). The hydrogels were prepared by a simple N-(3-(dimethylamino)propyl)-N'-ethyl carbodiimide hydrochloride (EDC)/N-hydroxysuccinimide (NHS) coupling reaction, and the cross-linking was confirmed by infrared spectroscopy and differential scanning calorimetry analyses. Because of the pH-responsive conformational alteration of PLP, the hydrogels were relatively hydrophobic and collapsed at acidic pH, but became hydrophilic and swollen at neutral pH. The amphiphilicity enabled the hydrogels to well retain and protect hydrophobic model drugs in the simulated gastric fluid, but efficiently release them in the simulated intestinal fluid. These results suggested that the pH-responsive amphiphilic hydrogels are promising candidates for oral delivery of hydrophobic drugs.
Collapse
Affiliation(s)
- Shiqi Wang
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Reva Attah
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Jiali Li
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Yitong Chen
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| | - Rongjun Chen
- Department of Chemical Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, United Kingdom
| |
Collapse
|
20
|
Liu Z, Li G, Zheng Z, Li Y, Han Y, Kaplan DL, Wang X. Silk fibroin-based woven endovascular prosthesis with heparin surface modification. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2018; 29:46. [PMID: 29651619 DOI: 10.1007/s10856-018-6055-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 04/04/2018] [Indexed: 06/08/2023]
Abstract
A novel seamless silk fibroin-based endovascular prosthesis (SFEPs) with bifurcated woven structure and anticoagulant function for the improvement of patency is described. The SFEPs were prepared from silk fibroin (SF) and polyester filaments using an installed weaving machine. The production processing parameters were optimized using orthogonal design methods. The inner surface of SFEPs was modified with polyethylenimine (PEI) and EDC/NHS-activated low-molecular-weight heparin (LMWH) to enhance anticoagulant function. The surface morphology and mechanical properties of the SFEPs were evaluated according to standard protocols. The thickness of modified SFEPs was lower than 0.085 ± 0.004 mm and water permeability was lower than 5.19 ± 0.30 mL/(cm2 × min). The results of mechanical properties showed that the diametral tensile strength and burst strength reached 61.6 ± 1.8 and 23.7 ± 2.2 MPa, respectively. Automatic coagulometer and energy-dispersive X-ray (EDX) confirmed LMWH immobilization on the surface of the SFEPs and the blood compatibility was improved with the heparin modification with PEI polymerization. In conclusion, the new prosthesis has potential applications in the blood vessel repairs where minimal thickness but superior mechanical strength and biocompatibility are important.
Collapse
Affiliation(s)
- Zekun Liu
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China.
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
| | - Yuling Li
- College of Textiles, Donghua University, 201620, Shanghai, China
| | - Yifan Han
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong, China
| | - David L Kaplan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, USA
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 215123, Suzhou, China.
- Department of Biomedical Engineering, Tufts University, 4 Colby St, Medford, MA, 02155, USA.
| |
Collapse
|
21
|
A therapeutic polyelectrolyte–vitamin C nanoparticulate system in polyvinyl alcohol–alginate hydrogel: An approach to treat skin and soft tissue infections caused by Staphylococcus aureus. Colloids Surf B Biointerfaces 2017; 160:315-324. [DOI: 10.1016/j.colsurfb.2017.09.030] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 09/05/2017] [Accepted: 09/11/2017] [Indexed: 11/17/2022]
|
22
|
Bankoti K, Rameshbabu AP, Datta S, Maity PP, Goswami P, Datta P, Ghosh SK, Mitra A, Dhara S. Accelerated healing of full thickness dermal wounds by macroporous waterborne polyurethane-chitosan hydrogel scaffolds. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 81:133-143. [DOI: 10.1016/j.msec.2017.07.018] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 06/06/2017] [Accepted: 07/13/2017] [Indexed: 12/21/2022]
|
23
|
Dumitriu C, Voicu SI, Muhulet A, Nechifor G, Popescu S, Ungureanu C, Carja A, Miculescu F, Trusca R, Pirvu C. Production and characterization of cellulose acetate - titanium dioxide nanotubes membrane fraxiparinized through polydopamine for clinical applications. Carbohydr Polym 2017; 181:215-223. [PMID: 29253966 DOI: 10.1016/j.carbpol.2017.10.082] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 10/18/2017] [Accepted: 10/22/2017] [Indexed: 11/25/2022]
Abstract
The present paper introduces a study on the preparation and characterization of cellulose acetate - TiO2 nanotubes membrane. In order to be used as a hemodialysis membrane, fraxiparinized nanotubes have been incorporated into the cellulose matrix. Fraxiparine embedding was performed via strong binding ability of dopamine. Composite membrane was characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and water contact angle measurement. Electrochemical impedance spectroscopy was used to correlate the morphology of composite membrane with its electrochemical properties. Mott-Schottky test proved titanium dioxide semiconductor incorporation in composite membrane. Permeation test was made to determine pure water flux. The obtained results showed that addition of nanotubes had a positive impact on membrane permeation compared with a control polymeric membrane.
Collapse
Affiliation(s)
- Cristina Dumitriu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Stefan Ioan Voicu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Alexandru Muhulet
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Gheorghe Nechifor
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Simona Popescu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Camelia Ungureanu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Andrea Carja
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Florin Miculescu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Roxana Trusca
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania
| | - Cristian Pirvu
- University Politehnica of Bucharest, 313 Splaiul Independentei, 060042 Bucharest, Romania.
| |
Collapse
|
24
|
Chen Y, Yang W, Wang W, Zhang M, Li M. Bombyx mori Silk Fibroin Scaffolds with Antheraea pernyi Silk Fibroin Micro/Nano Fibers for Promoting EA. hy926 Cell Proliferation. MATERIALS (BASEL, SWITZERLAND) 2017; 10:E1153. [PMID: 28972553 PMCID: PMC5666959 DOI: 10.3390/ma10101153] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 09/25/2017] [Accepted: 09/30/2017] [Indexed: 10/31/2022]
Abstract
Achieving a high number of inter-pore channels and a nanofibrous structure similar to that of the extracellular matrix remains a challenge in the preparation of Bombyx mori silk fibroin (BSF) scaffolds for tissue engineering. In this study, Antheraea pernyi silk fibroin (ASF) micro/nano fibers with an average diameter of 324 nm were fabricated by electrospinning from an 8 wt % ASF solution in hexafluoroisopropanol. The electrospun fibers were cut into short fibers (~0.5 mm) and then dispersed in BSF solution. Next, BSF scaffolds with ASF micro/nano fibers were prepared by lyophilization. Scanning electron microscope images clearly showed connected channels between macropores after the addition of ASF micro/nano fibers; meanwhile, micro/nano fibers and micropores could be clearly observed on the pore walls. The results of in vitro cultures of human umbilical vein endothelial cells (EA. hy926) on BSF scaffolds showed that fibrous BSF scaffolds containing 150% ASF fibers significantly promoted cell proliferation during the initial stage.
Collapse
Affiliation(s)
- Yongchun Chen
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
| | - Weichao Yang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
| | - Weiwei Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
| | - Min Zhang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
| | - Mingzhong Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, No. 199 Ren'ai Road, Industrial Park, Suzhou 215123, Jiangsu, China.
| |
Collapse
|
25
|
A novel electrospinning approach to fabricate high strength aqueous silk fibroin nanofibers. Int J Biol Macromol 2016; 87:201-7. [DOI: 10.1016/j.ijbiomac.2016.01.120] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 01/28/2016] [Accepted: 01/30/2016] [Indexed: 11/18/2022]
|
26
|
Zhang N, Lock J, Sallee A, Liu H. Magnetic Nanocomposite Hydrogel for Potential Cartilage Tissue Engineering: Synthesis, Characterization, and Cytocompatibility with Bone Marrow Derived Mesenchymal Stem Cells. ACS APPLIED MATERIALS & INTERFACES 2015; 7:20987-98. [PMID: 26360342 DOI: 10.1021/acsami.5b06939] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Hydrogels possess high water content and closely mimic the microenvironment of extracellular matrix. In this study, we created a hybrid hydrogel containing type II collagen, hyaluronic acid (HA), and polyethylene glycol (PEG) and incorporated magnetic nanoparticles into the hybrid hydrogels of type II collagen-HA-PEG to produce a magnetic nanocomposite hydrogel (MagGel) for cartilage tissue engineering. The results showed that both the MagGel and hybrid gel (Gel) were successfully cross-linked and the MagGel responded to an external magnet while maintaining structural integrity. That is, the MagGel could travel to the tissue defect sites in physiological fluids under remote magnetic guidance. The adhesion density of bone marrow derived mesenchymal stem cells (BMSCs) on the MagGel group in vitro was similar to the control group and greater than the Gel group. The morphology of BMSCs was normal and consistent in all groups. We also found that BMSCs engulfed magnetic nanoparticles in culture and the presence of magnetic nanoparticles did not affect BMSC adhesion and morphology. We hypothesized that the ingested nanoparticles may be eventually broken down by lysosome and excreted through exocytosis; further studies are necessary to confirm this. This study reports a promising magnetic responsive nanocomposite hydrogel for potential cartilage tissue engineering applications, which should be further studied for its effects on cell functions when combined with electromagnetic stimulation.
Collapse
Affiliation(s)
- Naiyin Zhang
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | - Jaclyn Lock
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | - Amy Sallee
- Department of Bioengineering, University of California , Riverside, California 92521, United States
| | - Huinan Liu
- Department of Bioengineering, University of California , Riverside, California 92521, United States
- Materials Science and Engineering Program, University of California , Riverside, California 92521, United States
- Stem Cell Center, University of California , Riverside, California 92521, United States
| |
Collapse
|
27
|
Elahi MF, Guan G, Wang L, Zhao X, Wang F, King MW. Surface modification of silk fibroin fabric using layer-by-layer polyelectrolyte deposition and heparin immobilization for small-diameter vascular prostheses. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:2517-2526. [PMID: 25671295 DOI: 10.1021/la504503w] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
There is an urgent need to develop a biologically active implantable small-diameter vascular prosthesis with long-term patency. Silk-fibroin-based small-diameter vascular prosthesis is a promising candidate having higher patency rate; however, the surface modification is indeed required to improve its further hemocompatibility. In this study, silk fibroin fabric was modified by a two-stage process. First, the surface of silk fibroin fabric was coated using a layer-by-layer polyelectrolyte deposition technique by stepwise dipping the silk fibroin fabric into a solution of cationic poly(allylamine hydrochloride) (PAH) and anionic poly(acrylic acid) (PAA) solution. The dipping procedure was repeated to obtain the PAH/PAA multilayers deposited on the silk fibroin fabrics. Second, the polyelectrolyte-deposited silk fibroin fabrics were treated in EDC/NHS-activated low-molecular-weight heparin (LMWH) solution at 4 °C for 24 h, resulting in immobilization of LMWH on the silk fibroin fabrics surface. Scanning electron microscopy, atomic force microscopy, and energy-dispersive X-ray data revealed the accomplishment of LMWH immobilization on the polyelectrolyte-deposited silk fibroin fabric surface. The higher the number of PAH/PAA coating layers on the silk fibroin fabric, the more surface hydrophilicity could be obtained, resulting in a higher fetal bovine serum protein and platelets adhesion resistance properties when tested in vitro. In addition, compared with untreated sample, the surface-modified silk fibroin fabrics showed negligible loss of bursting strength and thus reveal the acceptability of polyelectrolytes deposition and heparin immobilization approach for silk-fibroin-based small-diameter vascular prostheses modification.
Collapse
Affiliation(s)
- M Fazley Elahi
- Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University , 2999 North Renmin Road, Songjiang, Shanghai 201620, China
| | | | | | | | | | | |
Collapse
|
28
|
Ren X, Feng Y, Guo J, Wang H, Li Q, Yang J, Hao X, Lv J, Ma N, Li W. Surface modification and endothelialization of biomaterials as potential scaffolds for vascular tissue engineering applications. Chem Soc Rev 2015; 44:5680-742. [DOI: 10.1039/c4cs00483c] [Citation(s) in RCA: 359] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent developments of surface modification and endothelialization of biomaterials in vascular tissue engineering applications.
Collapse
Affiliation(s)
- Xiangkui Ren
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Yakai Feng
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Jintang Guo
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
- Collaborative Innovation Center of Chemical Science and Chemical Engineering (Tianjin)
| | - Haixia Wang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Qian Li
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Jing Yang
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Xuefang Hao
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Juan Lv
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- China
| | - Nan Ma
- Institute of Chemistry and Biochemistry
- Free University of Berlin
- D-14195 Berlin
- Germany
| | - Wenzhong Li
- Department of Cardiac Surgery
- University of Rostock
- D-18057 Rostock
- Germany
| |
Collapse
|
29
|
Gentile P, Ghione C, Tonda-Turo C, Kalaskar DM. Peptide functionalisation of nanocomposite polymer for bone tissue engineering using plasma surface polymerisation. RSC Adv 2015. [DOI: 10.1039/c5ra15579g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Biofunctionalisation of POSS-PCU for bone tissue engineering by plasma surface treatment.
Collapse
Affiliation(s)
- P. Gentile
- School of Mechanical and Systems Engineering
- Newcastle University
- Newcastle upon Tyne
- UK
| | - C. Ghione
- Politecnico di Torino
- Department of Mechanical and Aerospace Engineering
- Turin 10129
- Italy
| | - C. Tonda-Turo
- Politecnico di Torino
- Department of Mechanical and Aerospace Engineering
- Turin 10129
- Italy
| | - D. M. Kalaskar
- Centre for Nanotechnology and Tissue Engineering
- UCL Division of Surgery and Interventional Science
- University College London
- UK
| |
Collapse
|