IN-VITRO INVESTIGATIONS OF SKIN CLOSURE USING DIODE LASER AND PROTEIN SOLDER CONTAINING GOLD NANOSHELLS

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NOURBAKHSH MOHAMMAD SADEGH; ETRATI KHOSROSHAHI MOHAMMAD

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Journal: IRANIAN JOURNAL OF MEDICAL PHYSICS Year:2011 | Volume:7 | Issue:4 (29) Page(s): 61-69

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Title

IN-VITRO INVESTIGATIONS OF SKIN CLOSURE USING DIODE LASER AND PROTEIN SOLDER CONTAINING GOLD NANOSHELLS

Author(s)

NOURBAKHSH MOHAMMAD SADEGH | ETRATI KHOSROSHAHI MOHAMMAD | Issue Writer Certificate

Keywords

DIODE LASERQ3

GOLD NANOSHELLSQ3

TENSILE STRENGTHQ3

TISSUE SOLDERINGQ3

Abstract

Introduction: Laser TISSUE SOLDERING is a new technique for repair of various tissues including the skin, liver, articular cartilage and nerves and is a promising alternative to suture. To overcome the problems of thermal damage to surrounding tissues and low laser penetration depth, some exogenous chromophores such as GOLD NANOSHELLS, a new class of nanoparticles consisting of a dielectric core surrounded by a thin metal shell, are used. The aims of this study were to use two different concentrations of GOLD NANOSHELLS as the exogenous material for skin TISSUE SOLDERING and also to examine the effects of laser soldering parameters on the properties of the repaired skin. Material and Methods: Two mixtures of albumin solder and different concentrations of GOLD NANOSHELLS were prepared. A full thickness incision of 2×20 mm2 was made on the surface and after placing 50 ml of the solder mixture on the incision, an 810 nm DIODE LASER was used to irradiate it at different power densities. The changes of TENSILE STRENGTH, st, due to temperature rise, number of scan (Ns), and scan velocity (Vs) were investigated.Results: The results showed that the TENSILE STRENGTH of the repaired skin increased with increasing irradiance for both gold nanoshell concentrations. In addition, at constant laser irradiance (I), the TENSILE STRENGTH of the repaired incision increased with increasing Ns and decreasing Vs. In our case, this corresponded to st = 1610 g/cm2 at I ~ 60 Wcm-2, T ~ 65oC, Ns = 10 and Vs = 0.2 mms-1.Discussion and Conclusion: GOLD NANOSHELLS can be used as an indocyanine green dye (ICG) alterative for laser TISSUE SOLDERING. Although by increasing the laser power density, the TENSILE STRENGTH of the repaired skin increases, an optimum power density must be considered due to the resulting increase in tissue temperature.

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APA: Copy

NOURBAKHSH, MOHAMMAD SADEGH, & ETRATI KHOSROSHAHI, MOHAMMAD. (2011). IN-VITRO INVESTIGATIONS OF SKIN CLOSURE USING DIODE LASER AND PROTEIN SOLDER CONTAINING GOLD NANOSHELLS. IRANIAN JOURNAL OF MEDICAL PHYSICS, 7(4 (29)), 61-69. SID. https://sid.ir/paper/97008/en

Vancouver: Copy

NOURBAKHSH MOHAMMAD SADEGH, ETRATI KHOSROSHAHI MOHAMMAD. IN-VITRO INVESTIGATIONS OF SKIN CLOSURE USING DIODE LASER AND PROTEIN SOLDER CONTAINING GOLD NANOSHELLS. IRANIAN JOURNAL OF MEDICAL PHYSICS[Internet]. 2011;7(4 (29)):61-69. Available from: https://sid.ir/paper/97008/en

IEEE: Copy

MOHAMMAD SADEGH NOURBAKHSH, and MOHAMMAD ETRATI KHOSROSHAHI, “IN-VITRO INVESTIGATIONS OF SKIN CLOSURE USING DIODE LASER AND PROTEIN SOLDER CONTAINING GOLD NANOSHELLS,” IRANIAN JOURNAL OF MEDICAL PHYSICS, vol. 7, no. 4 (29), pp. 61–69, 2011, [Online]. Available: https://sid.ir/paper/97008/en

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