Employing volcanic tuff minerals in interior architecture design to reduce microbial contaminants and airborne fungal carcinogens of indoor environments.

Indoor volatile organic compounds (VOCs) have posed significant risks to human health since people have both shifted to a life spent, for the most part, indoors. Further, changes in materials used in the construction of buildings, furnishings, and tools either leak or encourage the production of VOCs. Whether these enclosed areas are residences, hospitals or workplaces (specifically composting facilities or closed farm buildings for raising livestock), VOCs can rise to levels that threaten people's health.

The influence of titanium surfaces in cultures of neonatal rat calvarial osteoblast-like cells: an immunohistochemical study.

Background: The goal of this present study was to evaluate the behavior of neonatal rat calvarial osteoblast-like cells cultured on different implant surfaces.

Materials: Sandblasted acid-etched (SLA) surfaces of 2 different companies with different alloy properties were used. These were named as SLA-1 and SLA-2.

[Analysis of degradation failure of poly L-lactic acid fixators used in meniscus tears].

Objectives: Biodegradable poly L-lactic acid (PLLA) fixators used in the repair of meniscal tears may cause adverse reactions inside the knee due to delayed degradation. This study was designed to determine the reasons for late degradation of PLLA fixators.

Methods: Three unused and three used meniscal PLLA fixators (BioStinger) were analyzed.

Photopolymerized injectable RGD-modified fumarated poly(ethylene glycol) diglycidyl ether hydrogels for cell growth.

In this study, photopolymerized hydrogels of fumarated poly(ethylene glycol) diglycidyl-co- poly(ethylene glycol) diacrylate have been synthesized and modified with cell adhesion peptide, Arg-Gly-Asp (RGD). The structural and mechanical properties of the hydrogels are found to be poly(ethylene glycol) diacrylate (PEGDA) dependent. The percentage of gelation is increased from 72 to 89 wt.

[Production and characterization of a glass-ceramic biomaterial and in vitro and in vivo evaluation of its biological effects].

Objectives: Glass-ceramics are biomaterials that are usually produced by the sol-gel technique and can be used as a substitute for bone. One important feature of glass-ceramics is osteointegration with bone tissue. This study was designed to produce a glass-ceramic and evaluate its structure and in vitro and in vivo biological effects.

[Evaluation of differentiation potential of human bone marrow-derived mesenchymal stromal cells to cartilage and bone cells].

Objectives: This study was designed to identify the characteristics and surface antigen properties of mesenchymal stromal cells (MSC) isolated and cultured from bone marrow of healthy subjects and to assess their differentiation potential to osteoblast and chondroblast lineage cells.

Methods: Mononuclear cells were isolated by density-gradient separation from 1-3 ml of bone marrow collected from 10 donors of bone transplantation aged between 4 months and 18 years. These mononuclear cells were cultured in flasks containing 10% fetal calf serum, which resulted in growth of fibroblast-like cells showing adhesion onto the culture flask.

In vitro evaluation of the use of zeolites as biomaterials: effects on simulated body fluid and two types of cells.

Various zeolites were kept in simulated body fluid (SBF) for different periods of time. Possible changes that may occur in the crystalline structures of zeolites and the chemical composition of SBF were determined by various analysis techniques after this treatment. The possible effects of two different zeolites on the morphology and viability of chronic myelogeneous leukemia and swiss albino fibroblast culture cells were also investigated.

[Culturability of rat bone marrow stromal cells and evaluation for osteoblastic formation].

Objectives: We investigated culturability of bone marrow stromal cells of young mature rats and evaluated cultured cells with regard to histomorphologic features and osteoblastic formation.

Methods: Sixteen mature Wistar rats were sacrificed under high dose of ether anesthesia. Their femurs and tibias were removed, medullas and metaphyses were washed with carrier serum and the collected material was cultured in DME/F12 serum.