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Trujillo-de Santiago G, Sharifi R, Yue K, Sani ES, Kashaf SS, Alvarez MM, Leijten J, Khademhosseini A, Dana R, Annabi N. Ocular adhesives: Design, chemistry, crosslinking mechanisms, and applications. Biomaterials 2019; 197:345-367. [PMID: 30690421 PMCID: PMC6687460 DOI: 10.1016/j.biomaterials.2019.01.011] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/16/2018] [Accepted: 01/05/2019] [Indexed: 12/12/2022]
Abstract
Closure of ocular wounds after an accident or surgery is typically performed by suturing, which is associated with numerous potential complications, including suture breakage, inflammation, secondary neovascularization, erosion to the surface and secondary infection, and astigmatism; for example, more than half of post-corneal transplant infections are due to suture related complications. Tissue adhesives provide promising substitutes for sutures in ophthalmic surgery. Ocular adhesives are not only intended to address the shortcomings of sutures, but also designed to be easy to use, and can potentially minimize post-operative complications. Herein, recent progress in the design, synthesis, and application of ocular adhesives, along with their advantages, limitations, and potential are discussed. This review covers two main classes of ocular adhesives: (1) synthetic adhesives based on cyanoacrylates, polyethylene glycol (PEG), and other synthetic polymers, and (2) adhesives based on naturally derived polymers, such as proteins and polysaccharides. In addition, different technologies to cover and protect ocular wounds such as contact bandage lenses, contact lenses coupled with novel technologies, and decellularized corneas are discussed. Continued advances in this area can help improve both patient satisfaction and clinical outcomes.
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Affiliation(s)
- Grissel Trujillo-de Santiago
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Microsystems Technologies Laboratories, MIT, Cambridge, 02139, MA, USA; Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL 64849, Mexico
| | - Roholah Sharifi
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Kan Yue
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Ehsan Shrizaei Sani
- Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA
| | - Sara Saheb Kashaf
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA
| | - Mario Moisés Alvarez
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Microsystems Technologies Laboratories, MIT, Cambridge, 02139, MA, USA; Centro de Biotecnología-FEMSA, Tecnológico de Monterrey, Monterrey, NL 64849, Mexico
| | - Jeroen Leijten
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Department of Developmental BioEngineering, Faculty of Science and Technology, Technical Medicine, University of Twente, Drienerlolaan 5, 7522 NB, Enschede, The Netherlands
| | - Ali Khademhosseini
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA; Department of Bioengineering, University of California - Los Angeles, Los Angeles, CA 90095, USA; Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA 90095, USA; Department of Radiology, David Geffen School of Medicine, University of California - Los Angeles, 10833 Le Conte Ave, Los Angeles, CA 90095, USA
| | - Reza Dana
- Massachusetts Eye and Ear Infirmary and Schepens Eye Research Institute, Department of Ophthalmology, Harvard Medical School, Boston, MA 02114, USA
| | - Nasim Annabi
- Harvard-Massachusetts Institute of Technology Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge 02139, MA, USA; Biomaterials Innovation Research Center, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston 02139, MA, USA; Chemical and Biomolecular Engineering Department, University of California - Los Angeles, Los Angeles, CA 90095, USA; Center for Minimally Invasive Therapeutics (C-MIT), California NanoSystems Institute (CNSI), University of California - Los Angeles, Los Angeles, CA 90095, USA.
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Ninan N, Thomas S, Grohens Y. Wound healing in urology. Adv Drug Deliv Rev 2015; 82-83:93-105. [PMID: 25500273 DOI: 10.1016/j.addr.2014.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2014] [Revised: 11/25/2014] [Accepted: 12/02/2014] [Indexed: 12/20/2022]
Abstract
Wound healing is a dynamic and complex phenomenon of replacing devitalized tissues in the body. Urethral healing takes place in four phases namely inflammation, proliferation, maturation and remodelling, similar to dermal healing. However, the duration of each phase of wound healing in urology is extended for a longer period when compared to that of dermatology. An ideal wound dressing material removes exudate, creates a moist environment, offers protection from foreign substances and promotes tissue regeneration. A single wound dressing material shall not be sufficient to treat all kinds of wounds as each wound is distinct. This review includes the recent attempts to explore the hidden potential of growth factors, stem cells, siRNA, miRNA and drugs for promoting wound healing in urology. The review also discusses the different technologies used in hospitals to treat wounds in urology, which make use of innovative biomaterials synthesised in regenerative medicines like hydrogels, hydrocolloids, foams, films etc., incorporated with growth factors, drug molecules or nanoparticles. These include surgical zippers, laser tissue welding, negative pressure wound therapy, and hyperbaric oxygen treatment.
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Sriramoju V, Alfano RR. Management of heat in laser tissue welding using NIR cover window material. Lasers Surg Med 2011; 43:991-7. [DOI: 10.1002/lsm.21143] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2011] [Indexed: 11/06/2022]
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Grummet JP, Costello AJ, Swanson DA, Stephens LC, Cromeens DM. Laser Welded Vesicourethral Anastomosis in an In Vivo Canine Model: A Pilot Study. J Urol 2002. [DOI: 10.1016/s0022-5347(05)64907-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jeremy P. Grummet
- From the Division of Urology, Department of Surgery, University of Melbourne, Melbourne, Australia, and Departments of Urology and Veterinary Medicine and Surgery, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - Anthony J. Costello
- From the Division of Urology, Department of Surgery, University of Melbourne, Melbourne, Australia, and Departments of Urology and Veterinary Medicine and Surgery, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - David A. Swanson
- From the Division of Urology, Department of Surgery, University of Melbourne, Melbourne, Australia, and Departments of Urology and Veterinary Medicine and Surgery, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - L. Clifton Stephens
- From the Division of Urology, Department of Surgery, University of Melbourne, Melbourne, Australia, and Departments of Urology and Veterinary Medicine and Surgery, University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - Douglas M. Cromeens
- From the Division of Urology, Department of Surgery, University of Melbourne, Melbourne, Australia, and Departments of Urology and Veterinary Medicine and Surgery, University of Texas M. D. Anderson Cancer Center, Houston, Texas
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Laser Welded Vesicourethral Anastomosis in an In Vivo Canine Model: A Pilot Study. J Urol 2002. [DOI: 10.1097/00005392-200207000-00091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
BACKGROUND AND OBJECTIVE Human albumin is currently being used as a biological solder in laser tissue welding. Experiments were performed to characterize the effects of differing albumin concentrations on wound closure when a 1.32 microm Nd:YAG laser is used to repair skin incisions. MATERIALS AND METHODS In vivo comparison of acute tensile strength was made in full thickness porcine skin wounds using different solder concentrations. Histology of the repairs was also completed to evaluate the thermal denaturation of the tissue and solder. Transmission measurements were completed for nondenatured and denatured albumin solders. Finally, the real time denaturation pattern of different solder concentrations during laser irradiation was investigated. RESULTS A tissue solder consisting of 50% albumin provides the greatest tensile strength for acute in vivo skin closure. The transmission measurements verify that the primary absorber of 1.32-microm laser light was the solder solvent (water). A significant decrease in power transmission occurs when the 25% albumin solder was denatured. The real time denaturation profiles demonstrate that 1.32-microm laser light denatures 25% albumin solder from the outer surface, while in 50% albumin solder, denaturation occurs from within the solder bulk. Wound histology corroborates the pattern of denaturation seen in vitro. CONCLUSION The combination of 1.32-microm laser light and 50% human albumin solder can be used to create a deep tissue weld resulting in higher acute repair tensile strength. This permits a deep to superficial closure of wounds, which may result in an optimal method of acute closure for full-thickness wounds.
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Affiliation(s)
- J M Massicotte
- Department of Surgery, Children's Hospital, Harvard Medical School, Boston, Massachusetts 02115, USA
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Wolf SJ, Soble JJ, Nakada SY, Rayala HJ, Humphrey PA, Clayman RV, Poppas DP. Comparison of Fibrin Glue, Laser Weld, and Mechanical Suturing Device for the Laparoscopic Closure of Ureterotomy in a Porcine Model. J Urol 1997. [DOI: 10.1016/s0022-5347(01)65029-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Stuart J. Wolf
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Jon J. Soble
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Stephen Y. Nakada
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Heidi J. Rayala
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Peter A. Humphrey
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Ralph V. Clayman
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
| | - Dix P. Poppas
- From the Section of Urology, University of Michigan, Ann Arbor, Michigan, the Division of Urologic Surgery, Department of Radiology, and Department of Pathology, Washington University School of Medicine, St. Louis, Missouri, the Department of Surgery, Division of Urology, University of Wisconsin, Madison, Wisconsin, and the Department of Urology, New York Hospital/Cornell University, New York, New York
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Comparison of Fibrin Glue, Laser Weld, and Mechanical Suturing Device for the Laparoscopic Closure of Ureterotomy in a Porcine Model. J Urol 1997. [DOI: 10.1097/00005392-199704000-00109] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Abstract
The management of ureteral stones has undergone revolutionary changes in the past 15 years. The parallel advances in extracorporeal shock wave lithotripsy, percutaneous and retrograde endoscopic access to the collecting system, and intracorporeal lithotripsy devices almost completely have supplanted the need for a traditional ureterolithotomy. The merits of the various technologies that are available are discussed as they apply to treating calculi in different ureteral segments.
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Affiliation(s)
- R K Singal
- Division of Urology, University of Western Ontario, London, Canada
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Price DT, Chari RS, Neighbors JD, Eubanks S, Schuessler WW, Preminger GM. Laparoscopic radical prostatectomy in the canine model. JOURNAL OF LAPAROENDOSCOPIC SURGERY 1996; 6:405-12. [PMID: 9025025 DOI: 10.1089/lps.1996.6.405] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The purpose of this study was to determine the feasibility of performing laparoscopic radical prostatectomy in a canine model. Laparoscopic radical prostatectomy was performed on six adult male canines. A new endoscopic needle driver was used to construct a secure vesicourethral anastomosis. Average operative time required to complete the procedure was 304 min (range 270-345 min). Dissection of the prostate gland took an average of 67 min (range 35-90 min), and construction of the vesicourethral anastomosis took 154 min (rage 80-240 min). There were no intraoperative complications and only one postoperative complication (anastomotic leak). Five of the six animals recovered uneventfully from the procedure, and their foley catheters were removed 10-14 days postoperatively after a retrograde cystourethrogram demonstrated an intact vesicourethral anastomosis. Four (80%) of the surviving animals were clinically continent within 10 days after catheter removal. Post mortem examination confirmed that the vesicourethral anastomosis was intact with no evidence of urine extravasation. These data demonstrate the feasibility of laparoscopic radical prostatectomy in a canine model, and suggest that additional work with this technique should be continued to develop its potential clinical application.
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Affiliation(s)
- D T Price
- Department of Surgery, Duke/United States Surgical Endosurgical Center, Duke University Medical Center, Durham, North Carolina, USA
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Poppas DP, Klioze SD, Uzzo RG, Schlossberg SM. Laser tissue welding in genitourinary reconstructive surgery: assessment of optimal suture materials. Urology 1995; 45:253-7. [PMID: 7855974 DOI: 10.1016/0090-4295(95)80014-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
OBJECTIVES Laser tissue welding in genitourinary reconstructive surgery has been shown in animal models to decrease operative time, improve healing, and decrease postoperative fistula formation when compared with conventional suture controls. Although the absence of suture material is the ultimate goal, this has not been shown to be practical with current technology for larger repairs. Therefore, suture-assisted laser tissue welding will likely be performed. This study sought to determine the optimal suture to be used during laser welding. METHODS The integrity of various organic and synthetic sutures exposed to laser irradiation were analyzed. Sutures studied included gut, clear Vicryl, clear polydioxanone suture (PDS), and violet PDS. Sutures were irradiated with a potassium titanyl phosphate (KTP)-532 laser or an 808-nm diode laser with and without the addition of a light-absorbing chromophore (fluorescein or indocyanine green, respectively). A remote temperature-sensing device obtained real-time surface temperatures during lasing. The average temperature, time, and total energy at break point were recorded. RESULTS Overall, gut suture achieved significantly higher temperatures and withstood higher average energy delivery at break point with both the KTP-532 and the 808-nm diode lasers compared with all other groups (P < 0.05). Both chromophore-treated groups had higher average temperatures at break point combined with lower average energy. The break-point temperature for all groups other than gut occurred at 91 degrees C or less. The optimal temperature range for tissue welding appears to be between 60 degrees and 80 degrees C. CONCLUSIONS Gut suture offers the greatest margin of error for KTP and 808-nm diode laser welding with or without the use of a chromophore.
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Affiliation(s)
- D P Poppas
- New York Hospital-Cornell Medical Center, James Buchanan Brady Foundation, Department of Urology, New York
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