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Zhu Z, Ye H, Zhang K, He G, Pan Z, Xian Y, Yang Y, Zhang C, Wu D. Naturally Derived Injectable Dual-Cross-Linked Adhesive Hydrogel for Acute Hemorrhage Control and Wound Healing. Biomacromolecules 2024; 25:2574-2586. [PMID: 38525818 DOI: 10.1021/acs.biomac.4c00105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Developing biocompatible injectable hydrogels with high mechanical strength and rapid strong tissue adhesion for hemostatic sealing of uncontrolled bleeding remains a prevailing challenge. Herein, we engineer an injectable and photo-cross-linkable hydrogel based on naturally derived gelatin methacrylate (GelMA) and N-hydroxysuccinimide-modified poly(γ-glutamic acid) (γPGA-NHS). The chemically dual-cross-linked hydrogel rapidly forms after UV light irradiation and covalently bonds to the underlying tissue to provide robust adhesion. We demonstrate a significantly improved hemostatic efficacy of the hydrogel using various injury models in rats compared to the commercially available fibrin glue. Notably, the hydrogel can achieve hemostasis in porcine liver and spleen incision, and femoral artery puncture models. Moreover, the hydrogel is used for sutureless repair of the liver defect in a rat model with a significantly suppressed inflammatory response, enhanced angiogenesis, and superior healing efficacy compared to fibrin glue. Together, this study offers a promising bioadhesive for treating severe bleeding and facilitating wound repair.
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Affiliation(s)
- Ziran Zhu
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, No. 2 Zhongguancun North First Street, Haidian District, Beijing 100190, China
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
- University of Chinese Academy of Sciences, No.19(A) Yuquan Road, Shijingshan District, Beijing 100049, China
| | - Huijun Ye
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Kaiwen Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Gang He
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Zheng Pan
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Yiwen Xian
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Yu Yang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Chong Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
| | - Decheng Wu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District, Shenzhen, Guangdong 518055, China
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2
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Schepers LE, Martindale BL, Berman AG, Cebull HL, Van Alstine W, Hollingshead SE, Novak T, Goergen CJ. Photocurable extracellular matrix sealant for cessation of venous hemorrhage. J Biomed Mater Res B Appl Biomater 2024; 112:e35401. [PMID: 38520703 DOI: 10.1002/jbm.b.35401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 01/23/2024] [Accepted: 02/18/2024] [Indexed: 03/25/2024]
Abstract
Hemorrhage is the second leading cause of death in patients under 46 years of age in the United States. Cessation of hemorrhage prevents hemorrhagic shock and tissue hypoxia. Controlling the bleed via direct pressure or tourniquet is often the first line of defense, but long-term care requires staples, hemostatic agents, or sealants that seal the vessel and restore blood flow. Here, we compare a new photocurable extracellular matrix sealant (pcECM) with low, medium, and high crosslink density formulations to a commercially available fibrin-based sealant, TISSEEL®. pcECM has potential uses in surgical and remote settings due to room temperature storage conditions and fast preparation time. Here, we determine if pcECM sealant can stop venous hemorrhage in a murine model, adhere to the wound site in vivo throughout the wound-healing process, and has the mechanical properties necessary for stopping hemorrhage. Adjusting pcECM crosslinking density significantly affected viscosity, swelling, burst strength, tensile strength, and elasticity of the sealant. 3-Dimensional ultrasound volume segmentations showed pcECM degrades to 17 ± 8% of its initial implant volume by day 28. Initially, local hemodynamic changes were observed, but returned close to baseline levels by day 28. Acute inflammation was observed near the puncture site in pcECM implanted mice, and we observed inflammatory markers at the 14-day explant for both sealants. pcECM and fibrin sealant successfully sealed the vessel in all cases, and consistently degraded over 14-28 days. pcECM is a durable sealant with tunable mechanical properties and possible uses in hemorrhage control and other surgical procedures.
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Affiliation(s)
- Luke E Schepers
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
| | | | - Alycia G Berman
- Product Engineering, Cook Biotech Inc., West Lafayette, Indiana, USA
| | - Hannah L Cebull
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
| | | | | | - Tyler Novak
- Product Engineering, Cook Biotech Inc., West Lafayette, Indiana, USA
| | - Craig J Goergen
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, Indiana, USA
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3
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Muñoz Taboada G, Dahis D, Dosta P, Edelman E, Artzi N. Sprayable Hydrogel Sealant for Gastrointestinal Wound Shielding. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311798. [PMID: 38421085 DOI: 10.1002/adma.202311798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 02/13/2024] [Indexed: 03/02/2024]
Abstract
Naturally occurring internal bleeding, such as in stomach ulcers, and complications following interventions, such as polyp resection post-colonoscopy, may result in delayed (5-7 days) post-operative adverse events-such as bleeding, intestinal wall perforation, and leakage. Current solutions for controlling intra- and post-procedural complications are limited in effectiveness. Hemostatic powders only provide a temporary solution due to their short-term adhesion to GI mucosal tissues (less than 48 h). In this study, a sprayable adhesive hydrogel for facile application and sustained adhesion to GI lesions is developed using clinically available endoscopes. Upon spraying, the biomaterial (based on polyethyleneimine-modified Pluronic micelles precursor and oxidized dextran) instantly gels upon contact with the tissue, forming an adhesive shield. In vitro and in vivo studies in guinea pigs, rabbits, and pig models confirm the safety and efficacy of this biomaterial in colonic and acidic stomach lesions. The authors' findings highlight that this family of hydrogels ensures prolonged tissue protection (3-7 days), facilitates wound healing, and minimizes the risk of delayed complications. Overall, this technology offers a readily adoptable approach for gastrointestinal wound management.
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Affiliation(s)
- Gonzalo Muñoz Taboada
- BioDevek, Boston, MA, 02134, USA
- Institut Químic de Sarrià, Univeritat Ramon Llull, Barcelona, 08017, Spain
| | | | - Pere Dosta
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically-Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Elazer Edelman
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Natalie Artzi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 02115, USA
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically-Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02139, USA
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Wang X, Yang X, Sun Z, Guo X, Teng Y, Hou S, Shi J, Lv Q. Progress in injectable hydrogels for the treatment of incompressible bleeding: an update. Front Bioeng Biotechnol 2024; 11:1335211. [PMID: 38264581 PMCID: PMC10803650 DOI: 10.3389/fbioe.2023.1335211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 12/26/2023] [Indexed: 01/25/2024] Open
Abstract
Uncontrollable haemorrhage from deep, noncompressible wounds remains a persistent and intractable challenge, accounting for a very high proportion of deaths in both war and disaster situations. Recently, injectable hydrogels have been increasingly studied as potential haemostatic materials, highlighting their enormous potential for the management of noncompressible haemorrhages. In this review, we summarize haemostatic mechanisms, commonly used clinical haemostatic methods, and the research progress on injectable haemostatic hydrogels. We emphasize the current status of injectable hydrogels as haemostatic materials, including their physical and chemical properties, design strategy, haemostatic mechanisms, and application in various types of wounds. We discuss the advantages and disadvantages of injectable hydrogels as haemostatic materials, as well as the opportunities and challenges involved. Finally, we propose cutting-edge research avenues to address these challenges and opportunities, including the combination of injectable hydrogels with advanced materials and innovative strategies to increase their biocompatibility and tune their degradation profile. Surface modifications for promoting cell adhesion and proliferation, as well as the delivery of growth factors or other biologics for optimal wound healing, are also suggested. We believe that this paper will inform researchers about the current status of the use of injectable haemostatic hydrogels for noncompressible haemorrhage and spark new ideas for those striving to propel this field forward.
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Affiliation(s)
- Xiudan Wang
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Xinran Yang
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Zhiguang Sun
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Xiaoqin Guo
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Yanjiao Teng
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Shike Hou
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Jie Shi
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
| | - Qi Lv
- Institution of Disaster and Emergency Medicine, Tianjin University, Tianjin, China
- Wenzhou Safety (Emergency) Institute of Tianjin University, Wenzhou, China
- Key Laboratory for Disaster Medicine Technology, Tianjin, China
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Sharma A, Dutta T, Srivastava A. Underwater Adhesives from Redox-Responsive Polyplexes of Thiolated Polyamide Polyelectrolytes. Chemistry 2024; 30:e202302157. [PMID: 37751057 DOI: 10.1002/chem.202302157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 09/27/2023]
Abstract
We report the fabrication of optically clear underwater adhesives using polyplexes of oppositely charged partially-thiolated polyamide polyelectrolytes (TPEs). The thiol content of the constituent PEs was varied to assess its influence on the adhesive properties of the resulting glues. These catechol-free, redox-responsive TPE-adhesives were formulated in aquo and exhibited high optical transparency and strong adhesion even on submerged or moist surfaces of diverse polar substrates such as glass, aluminium, wood, and bone pieces. The adhesives could be cured under water through oxidative disulphide crosslinking of the constituent TPEs. The polyamide backbone provided multi-site H-bonding interactions with the substrates while the disulphide crosslinking provided the cohesive strength to the glue. Strong adhesion of mammalian bones (load bearing capacity upto 7 kg/cm2 ) was achieved using the adhesive containing 30 mol % thiol residues. Higher pH and use of oxidants such as povidone-iodine solution enhanced the curing rate of the adhesives, and so did the use of Tris buffer instead of Phosphate buffer. The porous architecture of the adhesive and its progressive degradation in aqueous medium over the course of three weeks bode well for diverse biomedical applications where temporary adhesion of tissues is required.
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Affiliation(s)
- Aashish Sharma
- Department of Chemistry, Indian Institute of Science Education Research, Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
- Current Affiliation: School of Medical and Allied Sciences, G.D. Goenka University, Sohna Road, Gurugram, Haryana, 122103, India
| | - Tanmay Dutta
- Department of Chemistry, Indian Institute of Science Education Research, Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
| | - Aasheesh Srivastava
- Department of Chemistry, Indian Institute of Science Education Research, Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, 462066, India
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Haghniaz R, Montazerian H, Rabbani A, Baidya A, Usui B, Zhu Y, Tavafoghi M, Wahid F, Kim HJ, Sheikhi A, Khademhosseini A. Injectable, Antibacterial, and Hemostatic Tissue Sealant Hydrogels. Adv Healthc Mater 2023; 12:e2301551. [PMID: 37300448 PMCID: PMC10710521 DOI: 10.1002/adhm.202301551] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Indexed: 06/12/2023]
Abstract
Hemorrhage and bacterial infections are major hurdles in the management of life-threatening surgical wounds. Most bioadhesives for wound closure lack sufficient hemostatic and antibacterial properties. Furthermore, they suffer from weak sealing efficacy, particularly for stretchable organs, such as the lung and bladder. Accordingly, there is an unmet need for mechanically robust hemostatic sealants with simultaneous antibacterial effects. Here, an injectable, photocrosslinkable, and stretchable hydrogel sealant based on gelatin methacryloyl (GelMA), supplemented with antibacterial zinc ferrite (ZF) nanoparticles and hemostatic silicate nanoplatelets (SNs) for rapid blood coagulation is nanoengineered. The hydrogel reduces the in vitro viability of Staphylococcus aureus by more than 90%. The addition of SNs (2% w/v) and ZF nanoparticles (1.5 mg mL-1 ) to GelMA (20% w/v) improves the burst pressure of perforated ex vivo porcine lungs by more than 40%. Such enhancement translated to ≈250% improvement in the tissue sealing capability compared with a commercial hemostatic sealant, Evicel. Furthermore, the hydrogels reduce bleeding by ≈50% in rat bleeding models. The nanoengineered hydrogel may open new translational opportunities for the effective sealing of complex wounds that require mechanical flexibility, infection management, and hemostasis.
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Affiliation(s)
- Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Hossein Montazerian
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Atiya Rabbani
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Biotechnology, COMSATS University Islamabad, Islamabad, 45550, Pakistan
| | - Avijit Baidya
- Department of Chemical and Biomolecular Engineering, University of California, Los Angeles, Los Angeles, California 90095, United States
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu 603203, India
| | - Brent Usui
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
- Franklin W. Olin College of Engineering, 1000 Olin Way, Needham, Massachusetts 02492, United States
| | - Yangzhi Zhu
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
| | - Maryam Tavafoghi
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Fazli Wahid
- Department of Biomedical Sciences, Pak-Austria Fachhochschule: Institute of Applied Sciences and Technology, Haripur, 22620, Pakistan
| | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
- College of Pharmacy, Korea University, Sejong, 30019, Republic of Korea
| | - Amir Sheikhi
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, 11570 W Olympic Blvd, Los Angeles, California 90024, United States
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Zhang C, Liu K, He Y, Chang R, Guan F, Yao M. A multifunctional hydrogel dressing with high tensile and adhesive strength for infected skin wound healing in joint regions. J Mater Chem B 2023; 11:11135-11149. [PMID: 37964663 DOI: 10.1039/d3tb01384g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Most hydrogel dressings are designed for skin wounds in flat areas, and few are focused on the joint skin regions which undergo frequent movement. The mismatch of mechanical properties and poor fit between a hydrogel dressing and a wound in joint skin results in hydrogel shedding, bacterial infection and delayed healing. Therefore, it is of great significance to design and prepare a multifunctional hydrogel with high tensile and tissue-adhesive strength as well as other therapeutic effects for the treatment of joint skin wounds. In this work, a multifunctional hydrogel was reasonably prepared by simply mixing polyvinyl alcohol (PVA), borax, tannic acid (TA) and iron(III) chloride in certain proportions, which was further used to treat the skin wounds at the joint of the hind limb. Acting as the physical crosslinkers, borax and TA dynamically bond with PVA and provide the resulting hydrogel with strong tensile, fast shape-adaptive and self-healing properties. The photothermal bacteriostatic activity of the hydrogel is attributed to the formation of a metallic polyphenol network (MPN) between ferric ions and TA. In addition, the hydrogel exhibits high levels of adhesion, hemostatic performance, antioxidant abilities, and biocompatibility, and shows great potential to promote joint skin wound healing.
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Affiliation(s)
- Chen Zhang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
| | - Kaiyue Liu
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
| | - Yuanmeng He
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
| | - Rong Chang
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
| | - Fangxia Guan
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
| | - Minghao Yao
- School of Life Science, Zhengzhou University, 100 Science Road, Zhengzhou 450001, P. R. China.
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Yang Z, Chen L, Liu J, Zhuang H, Lin W, Li C, Zhao X. Short Peptide Nanofiber Biomaterials Ameliorate Local Hemostatic Capacity of Surgical Materials and Intraoperative Hemostatic Applications in Clinics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301849. [PMID: 36942893 DOI: 10.1002/adma.202301849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/12/2023] [Indexed: 06/18/2023]
Abstract
Short designer self-assembling peptide (dSAP) biomaterials are a new addition to the hemostat group. It may provide a diverse and robust toolbox for surgeons to integrate wound microenvironment with much safer and stronger hemostatic capacity than conventional materials and hemostatic agents. Especially in noncompressible torso hemorrhage (NCTH), diffuse mucosal surface bleeding, and internal medical bleeding (IMB), with respect to the optimal hemostatic formulation, dSAP biomaterials are the ingenious nanofiber alternatives to make bioactive neural scaffold, nasal packing, large mucosal surface coverage in gastrointestinal surgery (esophagus, gastric lesion, duodenum, and lower digestive tract), epicardiac cell-delivery carrier, transparent matrix barrier, and so on. Herein, in multiple surgical specialties, dSAP-biomaterial-based nano-hemostats achieve safe, effective, and immediate hemostasis, facile wound healing, and potentially reduce the risks in delayed bleeding, rebleeding, post-operative bleeding, or related complications. The biosafety in vivo, bleeding indications, tissue-sealing quality, surgical feasibility, and local usability are addressed comprehensively and sequentially and pursued to develop useful surgical techniques with better hemostatic performance. Here, the state of the art and all-round advancements of nano-hemostatic approaches in surgery are provided. Relevant critical insights will inspire exciting investigations on peptide nanotechnology, next-generation biomaterials, and better promising prospects in clinics.
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Affiliation(s)
- Zehong Yang
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
- Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
| | - Lihong Chen
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Ji Liu
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Hua Zhuang
- Department of Ultrasonography, West China Hospital of Sichuan University, No. 37 Guoxue Road, Wuhou District, Chengdu, Sichuan, 610041, China
| | - Wei Lin
- Department of Obstetrics and Gynecology, Key Laboratory of Birth Defects and Related Women and Children Diseases of the Ministry of Education, Sichuan University, No. 17 People's South Road, Chengdu, Sichuan, 610041, China
| | - Changlong Li
- Department of Biochemistry and Molecular Biology, West China School of Basic Medical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan, 610041, China
| | - Xiaojun Zhao
- Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital of Sichuan University, Chengdu, Sichuan, 610041, China
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Haghniaz R, Gangrade A, Montazerian H, Zarei F, Ermis M, Li Z, Du Y, Khosravi S, de Barros NR, Mandal K, Rashad A, Zehtabi F, Li J, Dokmeci MR, Kim H, Khademhosseini A, Zhu Y. An All-In-One Transient Theranostic Platform for Intelligent Management of Hemorrhage. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2301406. [PMID: 37271889 PMCID: PMC10460878 DOI: 10.1002/advs.202301406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 04/24/2023] [Indexed: 06/06/2023]
Abstract
Developing theranostic devices to detect bleeding and effectively control hemorrhage in the prehospital setting is an unmet medical need. Herein, an all-in-one theranostic platform is presented, which is constructed by sandwiching silk fibroin (SF) between two silver nanowire (AgNW) based conductive electrodes to non-enzymatically diagnose local bleeding and stop the hemorrhage at the wound site. Taking advantage of the hemostatic property of natural SF, the device is composed of a shape-memory SF sponge, facilitating blood clotting, with ≈82% reduction in hemostatic time in vitro as compared with untreated blood. Furthermore, this sandwiched platform serves as a capacitive sensor that can detect bleeding and differentiate between blood and other body fluids (i.e., serum and water) via capacitance change. In addition, the AgNW electrode endows anti-infection efficiency against Escherichia coli and Staphylococcus aureus. Also, the device shows excellent biocompatibility and gradually biodegrades in vivo with no major local or systemic inflammatory responses. More importantly, the theranostic platform presents considerable hemostatic efficacy comparable with a commercial hemostat, Dengen, in rat liver bleeding models. The theranostic platform provides an unexplored strategy for the intelligent management of hemorrhage, with the potential to significantly improve patients' well-being through the integration of diagnostic and therapeutic capabilities.
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Affiliation(s)
| | - Ankit Gangrade
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Hossein Montazerian
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
- Department of BioengineeringUniversity of CaliforniaLos AngelesCA90095USA
- California NanoSystems InstituteUniversity of CaliforniaLos AngelesCA90095USA
| | - Fahimeh Zarei
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Menekse Ermis
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Zijie Li
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
- Mork Family Department of Chemical Engineering & Materials ScienceViterbi School of EngineeringUniversity of Southern CaliforniaLos AngelesCA90007USA
| | - Yuxuan Du
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
- Mork Family Department of Chemical Engineering & Materials ScienceViterbi School of EngineeringUniversity of Southern CaliforniaLos AngelesCA90007USA
| | - Safoora Khosravi
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
- Electrical and Computer Engineering DepartmentUniversity of British ColumbiaVancouverBCV6T 1Z4Canada
| | | | - Kalpana Mandal
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Ahmad Rashad
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Fatemeh Zehtabi
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | - Jinghang Li
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
| | | | - Han‐Jun Kim
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
- College of PharmacyKorea UniversitySejong30019Republic of Korea
| | | | - Yangzhi Zhu
- Terasaki Institute for Biomedical InnovationLos AngelesCA90064USA
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10
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Chen X, Gholizadeh S, Ghovvati M, Wang Z, Jellen MJ, Mostafavi A, Dana R, Annabi N. Engineering a drug eluting ocular patch for delivery and sustained release of anti-inflammatory therapeutics. AIChE J 2023; 69:e18067. [PMID: 38250665 PMCID: PMC10798673 DOI: 10.1002/aic.18067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Accepted: 01/25/2023] [Indexed: 01/23/2024]
Abstract
Ocular inflammation is commonly associated with eye disease or injury. Effective and sustained ocular delivery of therapeutics remains a challenge due to the eye physiology and structural barriers. Herein, we engineered a photocrosslinkable adhesive patch (GelPatch) incorporated with micelles (MCs) loaded with Loteprednol etabonate (LE) for delivery and sustained release of drug. The engineered drug loaded adhesive hydrogel, with controlled physical properties, provided a matrix with high adhesion to the ocular surfaces. The incorporation of MCs within the GelPatch enabled solubilization of LE and its sustained release within 15 days. In vitro studies showed that MC loaded GelPatch supported cell viability and growth. In addition, subcutaneous implantation of the MC loaded GelPatch in rats confirmed its in vivo biocompatibility and stability within 28 days. This non-invasive, adhesive, and biocompatible drug eluting patch can be used as a matrix for the delivery and sustained release of hydrophobic drugs.
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Affiliation(s)
- Xi Chen
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
| | - Shima Gholizadeh
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
| | - Mahsa Ghovvati
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
| | - Ziqing Wang
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
| | - Marcus J. Jellen
- Department of Chemistry and Biochemistry, University of California- Los Angeles, Los Angeles, CA, USA
| | - Azadeh Mostafavi
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
| | - Reza Dana
- Schepens Eye Research Institute, Mass Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California- Los Angeles, Los Angeles, CA, USA
- Department of Bioengineering, University of California- Los Angeles, Los Angeles, CA, USA
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11
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Fan P, Dong Q, Yang J, Chen Y, Yang H, Gu S, Xu W, Zhou Y. Flexible dual-functionalized hyaluronic acid hydrogel adhesives formed in situ for rapid hemostasis. Carbohydr Polym 2023; 313:120854. [PMID: 37182954 DOI: 10.1016/j.carbpol.2023.120854] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/24/2023] [Accepted: 03/25/2023] [Indexed: 04/07/2023]
Abstract
Hydrogel adhesives integrating both rapid and strong adhesion to blooding tissues and biocompatibility are highly desired for fast hemostasis. Herein, a flexible hyaluronic acid hydrogel adhesive is fabricated via photocrosslinking of the solution originating from dopamine-conjugated maleic hyaluronic acid (DMHA) in situ. The introduction of acrylate groups with high substitutions into the hydrogel matrix endows the adhesive with rapid gelation and strong tissue adhesion properties through photopolymerization. Moreover, the high substitution of catechol groups with unoxidized state can not only induce red blood cell aggregation and platelets adhesion but also adhere to wound tissue to further enhance hemostasis. Based on its bio-adhesion and procoagulant activity, the DMHA hydrogel formed in situ reveals superior hemostatic performance in the rat liver injury model and noncompressible hemorrhage model, and rabbit femoral artery puncture model, compared to commercial products (gauze, absorbable gelatin sponge) and oxidized DMHA (SMHA) hydrogel. Besides, the hydrogel exhibited good adaptability, biodegradability, and superior cytocompatibility as well as negligible inflammation. This hydrogel adhesive is a promising biological adhesive for hemorrhage control.
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12
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Gholizadeh S, Chen X, Yung A, Naderi A, Ghovvati M, Liu Y, Farzad A, Mostafavi A, Dana R, Annabi N. Development and optimization of an ocular hydrogel adhesive patch using definitive screening design (DSD). Biomater Sci 2023; 11:1318-1334. [PMID: 36350113 DOI: 10.1039/d2bm01013e] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Adhesive hydrogels based on chemically modified photocrosslinkable polymers with specific physicochemical properties are frequently utilized for sealing wounds or incisions. These adhesive hydrogels offer tunable characteristics such as tailorable tissue adhesion, mechanical properties, swelling ratios, and enzymatic degradability. In this study, we developed and optimized a photocrosslinkable adhesive patch, GelPatch, with high burst pressure, minimal swelling, and specific mechanical properties for application as an ocular (sclera and subconjunctival) tissue adhesive. To achieve this, we formulated a series of hydrogel patches composed of different polymers with various levels of methacrylation, molecular weights, and hydrophobic/hydrophilic properties. A computerized multifactorial definitive screening design (DSD) analysis was performed to identify the most prominent components impacting critical response parameters such as adhesion, swelling ratio, elastic modulus, and second order interactions between applied components. These parameters were mathematically processed to generate a predictive model that identifies the linear and non-linear correlations between these factors. In conclusion, an optimized formulation of GelPatch was selected based on two modified polymers: gelatin methacryloyl (GelMA) and glycidyl methacrylated hyaluronic acid (HAGM). The ex vivo results confirmed adhesion and retention of the optimized hydrogel subconjunctivally and on the sclera for up to 4 days. The developed formulation has potential to be used as an ocular sealant for quick repair of laceration type ocular injuries.
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Affiliation(s)
- Shima Gholizadeh
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
| | - Xi Chen
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
| | - Ann Yung
- Schepens Eye Research Institute, Mass Eye and Ear, Harvard Medical School, Department of Ophthalmology, Boston, MA, USA
| | - Amirreza Naderi
- Schepens Eye Research Institute, Mass Eye and Ear, Harvard Medical School, Department of Ophthalmology, Boston, MA, USA
| | - Mahsa Ghovvati
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
| | - Yangcheng Liu
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
| | - Ashkan Farzad
- Sanquin Product Support and Development, Sanquin Plasma Products B.V., Amsterdam, The Netherlands
| | - Azadeh Mostafavi
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
| | - Reza Dana
- Schepens Eye Research Institute, Mass Eye and Ear, Harvard Medical School, Department of Ophthalmology, Boston, MA, USA
| | - Nasim Annabi
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA, USA.
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, CA, USA
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13
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Zhang X, Shi L, Xiao W, Wang Z, Wang S. Design of Adhesive Hemostatic Hydrogels Guided by the Interfacial Interactions with Tissue Surface. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202200115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Xiaobin Zhang
- Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Lianxin Shi
- Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
- Binzhou Institute of Technology Binzhou 256600 P.R. China
| | - Wuyi Xiao
- Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
| | - Zhao Wang
- Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
| | - Shutao Wang
- Key Laboratory of Bio-inspired Materials and Interface Science Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 P.R. China
- University of Chinese Academy of Sciences Beijing 100049 P.R. China
- Qingdao Casfuture Research Institute Co. Ltd Qingdao 266109 P.R. China
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14
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Baidya A, Ghovvati M, Lu C, Naghsh-Nilchi H, Annabi N. Designing a Nitro-Induced Sutured Biomacromolecule to Engineer Electroconductive Adhesive Hydrogels. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49483-49494. [PMID: 36286540 DOI: 10.1021/acsami.2c11348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Nitro-functionality, with a large deficit of negative charge, embraces biological importance and has proven its therapeutic essence even in chemotherapy. Functionally, with its strong electron-withdrawing capability, nitro can manipulate the electron density of organic moieties and regulates cellular-biochemical reactions. However, the chemistry of nitro-functionality to introduce physiologically relevant macroscopic properties from the molecular skeleton is unknown. Therefore, herein, a neurotransmitter moiety, dopamine, was chemically modified with a nitro-group to explore its influence on synthesizing a multifunctional biomaterial for therapeutic applications. Chemically, while the nitro-group perturbed the aromatic electron density of nitrocatecholic domain, it facilitated the suturing of nitrocatechol moieties to regain its aromaticity through a radical transfer mechanism, forming a novel macromolecular structure. Incorporation of the sutured-nitrocatecholic strand (S-nCAT) in a gelatin-based hydrogel introduced an electroconductive microenvironment through the delocalization of π-electrons in S-nCAT, while maintaining its catechol-mediated adhesive property for tissue repairing/sealing. Meanwhile, the engineered hydrogel enriched with noncovalent interactions, demonstrated excellent mechano-physical properties to support tissue functions. Cytocompatibility of the bioadhesive was assessed with in vitro and in vivo studies, confirming its potential usage for biomedical applications. In conclusion, this novel chemical approach enabled designing a multifunctional biomaterial by manipulating the electronic properties of small bioactive molecules for various biomedical applications.
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Affiliation(s)
- Avijit Baidya
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, California90095, United States
| | - Mahsa Ghovvati
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, California90095, United States
| | - Cathy Lu
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, California90095, United States
| | - Hamed Naghsh-Nilchi
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, California90095, United States
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California-Los Angeles, Los Angeles, California90095, United States
- Department of Bioengineering, University of California-Los Angeles, Los Angeles, California90095, United States
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15
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Baidya A, Haghniaz R, Tom G, Edalati M, Kaneko N, Alizadeh P, Tavafoghi M, Khademhosseini A, Sheikhi A. A Cohesive Shear-Thinning Biomaterial for Catheter-Based Minimally Invasive Therapeutics. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42852-42863. [PMID: 36121372 DOI: 10.1021/acsami.2c08799] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Shear-thinning hydrogels are suitable biomaterials for catheter-based minimally invasive therapies; however, the tradeoff between injectability and mechanical integrity has limited their applications, particularly at high external shear stress such as that during endovascular procedures. Extensive molecular crosslinking often results in stiff, hard-to-inject hydrogels that may block catheters, whereas weak crosslinking renders hydrogels mechanically weak and susceptible to shear-induced fragmentation. Thus, controlling molecular interactions is necessary to improve the cohesion of catheter-deployable hydrogels. To address this material design challenge, we have developed an easily injectable, nonhemolytic, and noncytotoxic shear-thinning hydrogel with significantly enhanced cohesion via controlling noncovalent interactions. We show that enhancing the electrostatic interactions between weakly bound biopolymers (gelatin) and nanoparticles (silicate nanoplatelets) using a highly charged polycation at an optimum concentration increases cohesion without compromising injectability, whereas introducing excessive charge to the system leads to phase separation and loss of function. The cohesive biomaterial is successfully injected with a neuroendovascular catheter and retained without fragmentation in patient-derived three-dimensionally printed cerebral aneurysm models under a physiologically relevant pulsatile fluid flow, which would otherwise be impossible using the noncohesive hydrogel counterpart. This work sheds light on how charge-driven molecular and colloidal interactions in shear-thinning physical hydrogels improve cohesion, enabling complex minimally invasive procedures under flow, which may open new opportunities for developing the next generation of injectable biomaterials.
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Affiliation(s)
- Avijit Baidya
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Reihaneh Haghniaz
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California 90024, United States
| | - Gregory Tom
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
| | - Masoud Edalati
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Naoki Kaneko
- Division of Interventional Neuroradiology, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Parvin Alizadeh
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
| | - Maryam Tavafoghi
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
| | - Ali Khademhosseini
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- Terasaki Institute for Biomedical Innovation (TIBI), Los Angeles, California 90024, United States
| | - Amir Sheikhi
- California NanoSystems Institute (CNSI), University of California, Los Angeles, 570 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Bioengineering, University of California, Los Angeles, 410 Westwood Plaza, Los Angeles, California 90095, United States
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Biomedical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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16
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Bioinspired gelatin based sticky hydrogel for diverse surfaces in burn wound care. Sci Rep 2022; 12:13735. [PMID: 35962001 PMCID: PMC9374690 DOI: 10.1038/s41598-022-17054-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 07/20/2022] [Indexed: 11/26/2022] Open
Abstract
Proper burn wound management considers patient’s compliance and provides an environment to accelerate wound closure. Sticky hydrogels are conducive to wound management. They can act as a preventive infection patch with controlled drug delivery and diverse surface adherence. A hypothesis-driven investigation explores a bioinspired polydopamine property in a gelatin-based hydrogel (GbH) where polyvinyl alcohol and starch function as hydrogel backbone. The GbH displayed promising physical properties with O–H group rich surface. The GbH was sticky onto dry surfaces (glass, plastic and aluminium) and wet surfaces (pork and chicken). The GbH demonstrated mathematical kinetics for a transdermal formulation, and the in vitro and in vivo toxicity of the GbH on test models confirmed the models’ healthy growth and biocompatibility. The quercetin-loaded GbH showed 45–50% wound contraction on day 4 for second-degree burn wounds in rat models that were equivalent to the silver sulfadiazine treatment group. The estimates for tensile strength, biochemicals, connective tissue markers and NF-κB were restored on day 21 in the GbH treated healed wounds to imitate the normal level of the skin. The bioinspired GbH promotes efficient wound healing of second-degree burn wounds in rat models, indicating its pre-clinical applicability.
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17
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Ye H, Xian Y, Li S, Zhang C, Wu D. In situ forming injectable γ-poly(glutamic acid)/PEG adhesive hydrogels for hemorrhage control. Biomater Sci 2022; 10:4218-4227. [PMID: 35748430 DOI: 10.1039/d2bm00525e] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Rapidly in situ forming adhesive hydrogels are promising candidates for efficient hemostasis due to their easy administration and minimal invasion. However, development of biocompatible and high-performance hemostatic hydrogels without any additional toxic agents remains a challenge. Herein, a series of novel injectable adhesive hydrogels based on N-hydroxysuccinimide (NHS) modified γ-poly(glutamic acid) (γPGA-NHS) and tetra-armed poly(ethylene glycol) amine (Tetra-PEG-NH2) were developed. Among all samples, PGA10-PEG15 and PGA10-PEG20 hydrogels with higher PEG contents exhibited rapid gelation time (<20 s), strong mechanical strength (compression modulus up to ∼75 kPa), good adhesive properties (∼15 kPa), and satisfactory burst pressure (∼18-20 kPa). As a result, PGA10-PEG15 and PGA10-PEG20 hydrogels showed a remarkable reduction in hemostasis time and blood loss compared with gauze and fibrin glue. More importantly, the PGA10-PEG20 hydrogel was also successfully used to seal femoral arterial trauma. Subcutaneous implantation experiments indicated a good biocompatibility of the hydrogels in vivo. All these results strongly support that the developed PGA-PEG hydrogels could serve as promising hemostatic agents in emergency and clinical situations.
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Affiliation(s)
- Huijun Ye
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District 518055, Shenzhen, Guangdong Province, Peoples Republic of China.
| | - Yiwen Xian
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District 518055, Shenzhen, Guangdong Province, Peoples Republic of China.
| | - Shurong Li
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District 518055, Shenzhen, Guangdong Province, Peoples Republic of China.
| | - Chong Zhang
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District 518055, Shenzhen, Guangdong Province, Peoples Republic of China.
| | - Decheng Wu
- Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Avenue, Nanshan District 518055, Shenzhen, Guangdong Province, Peoples Republic of China.
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18
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Ghovvati M, Kharaziha M, Ardehali R, Annabi N. Recent Advances in Designing Electroconductive Biomaterials for Cardiac Tissue Engineering. Adv Healthc Mater 2022; 11:e2200055. [PMID: 35368150 DOI: 10.1002/adhm.202200055] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/12/2022] [Indexed: 12/19/2022]
Abstract
Implantable cardiac patches and injectable hydrogels are among the most promising therapies for cardiac tissue regeneration following myocardial infarction. Incorporating electrical conductivity into these patches and hydrogels is found to be an efficient method to improve cardiac tissue function. Conductive nanomaterials such as carbon nanotube, graphene oxide, gold nanorod, as well as conductive polymers such as polyaniline, polypyrrole, and poly(3,4-ethylenedioxythiophene):polystyrene sulfonate are appealing because they possess the electroconductive properties of semiconductors with ease of processing and have potential to restore electrical signaling propagation through the infarct area. Numerous studies have utilized these materials for regeneration of biological tissues that possess electrical activities, such as cardiac tissue. In this review, recent studies on the use of electroconductive materials for cardiac tissue engineering and their fabrication methods are summarized. Moreover, recent advances in developing electroconductive materials for delivering therapeutic agents as one of emerging approaches for treating heart diseases and regenerating damaged cardiac tissues are highlighted.
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Affiliation(s)
- Mahsa Ghovvati
- Department of Chemical and Biomolecular Engineering University of California – Los Angeles Los Angeles CA 90095 USA
| | - Mahshid Kharaziha
- Biomaterials Research Group Department of Materials Engineering Isfahan University of Technology Isfahan 84156‐83111 Iran
| | - Reza Ardehali
- Division of Cardiology Department of Internal Medicine David Geffen School of Medicine University of California – Los Angeles Los Angeles CA 90095 USA
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering University of California – Los Angeles Los Angeles CA 90095 USA
- Department of Bioengineering University of California – Los Angeles Los Angeles CA 90095 USA
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19
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Ghovvati M, Baghdasarian S, Baidya A, Dhal J, Annabi N. Engineering a highly elastic bioadhesive for sealing soft and dynamic tissues. J Biomed Mater Res B Appl Biomater 2022; 110:1511-1522. [PMID: 35148016 DOI: 10.1002/jbm.b.35012] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/27/2021] [Accepted: 01/11/2022] [Indexed: 12/19/2022]
Abstract
Injured tissues often require immediate closure to restore the normal functionality of the organ. In most cases, injuries are associated with trauma or various physical surgeries where different adhesive hydrogel materials are applied to close the wounds. However, these materials are typically toxic, have low elasticity, and lack strong adhesion especially to the wet tissues. In this study, a stretchable composite hydrogel consisting of gelatin methacrylol catechol (GelMAC) with ferric ions, and poly(ethylene glycol) diacrylate (PEGDA) was developed. The engineered material could adhere to the wet tissue surfaces through the chemical conjugation of catechol and methacrylate groups to the gelatin backbone. Moreover, the incorporation of PEGDA enhanced the elasticity of the bioadhesives. Our results showed that the physical properties and adhesion of the hydrogels could be tuned by changing the ratio of GelMAC/PEGDA. In addition, the in vitro toxicity tests confirmed the biocompatibility of the engineered bioadhesives. Finally, using an ex vivo lung incision model, we showed the potential application of the developed bioadhesives for sealing elastic tissues.
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Affiliation(s)
- Mahsa Ghovvati
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Sevana Baghdasarian
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Avijit Baidya
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Jharana Dhal
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
| | - Nasim Annabi
- Department of Chemical and Biomolecular Engineering, University of California - Los Angeles, Los Angeles, California, USA
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