Computer modeling can be a valuable tool to determine the absorption of laser light in different skin layers. For this study, the optical properties of three different skin tumors were used in the model to evaluate the effect on penetration depth into the skin. Comparison between the healthy dermis and the skin tumors indicated that up to 28 % more laser light is absorbed in the healthy dermis ...

The main function of the skin is to protect body from negative environmental influences. physical barrier permeability mainly represented by stratum corneum; however, other layers epidermis and dermis are its important components. mechanical strength provided intercellular contacts in structural proteins dermis. chemical-biological includes lipids, acids, natural moisturizing factor antimicrobi...

Skin of 14-day icjic and + / + embryos was separated into dermal and epidermal layers using trypsin, and recombined in the combinations + /+ epidermis with + /+ dermis, +/ + epidermis with icfic dermis, icjic epidermis with + /+ dermis, and icjic epidermis with ic/ic dermis. The recombined tissues were implanted in adult histocompatible testes and allowed to grow for 2 weeks. The type of hair t...

dermatofibrosarcoma protuberans (dfsp) is very rare tumor of dermis layer of skin with the incidence of only 1 case per million per year. dfsp rarely leads to a metastasis (less than 5% have metastasis), but dfsp can recur locally. we publish a rare case of a recurrent dermatofibrosarcoma protuberans and its management with radical excision and interval skin grafting.

Electrically layered tissue structure significantly modifies distribution of radiofrequency (RF) current in the dermis and in the subcutaneous adipose tissue comparing to that in a homogeneous medium. On the basis of the simple model of RF current distribution in a two-layer skin containing dermis and subcutis, we assess the influence of the dermal thickness on the current density in different ...

The skin is the largest organ of the body, accounting for about 15% of the total adult body weight. It performs many vital functions, including protection against external physical, chemical, and biologic assailants, as well as prevention of excess water loss from the body and a role in thermoregulation. The skin is continuous, with the mucous membranes lining the body’s surface (Kanitakis, 200...

Background: Extensive full-thickness burns require replacement of both epidermis and dermis. In designing skin replacements, the goal has been to re-create this model and make a product which has both essential components. Methods: In the present study, we developed procedures for establishing confluent, stratified layers of cultured human keratinocytes on the surface of modified collagen-chito...

Liposomes have been intensively investigated as carriers for different applications in dermatology and cosmetics. Ascorbic acid has potent antioxidant and anti-inflammatory properties preventing photodamage of keratinocytes; however, due to its instability and low skin penetration, an appropriate carrier is mandatory to obtain desirable efficacy. The present work investigates the ability of a s...

introduction: to improve laser hair removal (lhr) for dark skin, the fluence rate reaching the hair follicle in lhr is important. this paper presents the results of a comparative study examining the function of wavelength on dark skin types using 755 nm alexandrite and 810 nm diode lasers. methods: the structure of the skin was created using a realistic skin model by the advanced systems analys...