The number of daily products containing nanoparticles (NP) is rapidly increasing. NP in powders, dispersions, or sprays are a yet unknown risk for incidental exposure, especially at workplaces during NP production and processing, and for consumers of any health status and age using NP containing sprays. We developed the nano aerosol chamber for in vitro toxicity (NACIVT), a portable instrument for realistic safety testing of inhaled NP in vitro and evaluated effects of silver (Ag) and carbon (C) NP-which belong to the most widely used nanomaterials-on normal and compromised airway epithelia. We review the development, physical performance, and suitability of NACIVT for short and long-term exposures with air-liquid interface (ALI) cell cultures in regard to the prerequisites of a realistic in vitro test system for inhalation toxicology and in comparison to other commercially available, well characterized systems. We also review doses applied to cell cultures in vitro and acknowledge that a single exposure to realistic doses of spark generated 20-nm Ag- or CNP results in small, similar cellular responses to both NP types and that cytokine release generally increased with increasing NP dose.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5333034 | PMC |
| http://dx.doi.org/10.3390/nano7020049 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Environmental Exposure to Bisphenol A Enhances Invasiveness in Papillary Thyroid Cancer.
Int J Mol Sci
January 2025
Department of Electrical and Computer Engineering, College of Electrical and Computer Engineering, National Yang Ming Chiao Tung University, Hsinchu 300, Taiwan.
Bisphenol A (BPA) is a prevalent environmental contaminant found in plastics and known for its endocrine-disrupting properties, posing risks to both human health and the environment. Despite its widespread presence, the impact of BPA on papillary thyroid cancer (PTC) progression, especially under realistic environmental conditions, is not well understood. This study examined the effects of BPA on PTC using a 3D thyroid papillary tumor spheroid model, which better mimicked the complex interactions within human tissues compared to traditional 2D models.
View Article and Find Full Text PDFA Novel Bacteriophage with the Potential to Inhibit -Induced Proliferation of Colorectal Cancer Cells.
Antibiotics (Basel)
January 2025
Department of Laboratory Medicine and Biotechnology, Tzu Chi University, Hualien 970374, Taiwan.
Background: Increasing evidence shows that () largely affects colorectal cancer (CRC) growth and progression; therefore, the inhibition of intratumoral may be one realistic approach to combat CRC. Although antibiotics are helpful in eliminating bacteria, the major problem remains the rise of potential antibiotic-resistant strains and antibiotic-associated adverse effects. Currently, bacteriophage therapy has gained interest because of its high selectivity to bacterial hosts and may become a realistic approach in treating bacteria-associated cancers.
View Article and Find Full Text PDFGraphene-Based Materials for Bone Regeneration in Dentistry: A Systematic Review of In Vitro Applications and Material Comparisons.
Nanomaterials (Basel)
January 2025
Dermatology, Stomatology, Radiology and Physical Medicine, Hospital Morales Meseguer, Medicine School, IMIB-Arrixaca, University of Murcia, 30100 Murcia, Spain.
Introduction: Graphene, a two-dimensional arrangement of carbon atoms, has drawn significant interest in medical research due to its unique properties. In the context of bone regeneration, graphene has shown several promising applications. Its robust structure, electrical conductivity, and biocompatibility make it an ideal candidate for enhancing bone tissue regeneration and repair processes.
View Article and Find Full Text PDFA new method for testing non-porous surfaces for their antimicrobial efficacy using an aerosol-generating spray chamber.
Front Microbiol
January 2025
Diagnostic and Research Institute for Hygiene, Microbiology and Environmental Medicine, Medical University of Graz, Graz, Austria.
The application of antimicrobial surfaces requires proof of their effectivity by methods in laboratories. One of the most common test methods is ISO 22196:2011, which represents a simple and inexpensive protocol by applying the bacterial suspension with known volume and concentration covered under a polyethylene film on the surfaces. The incubation is then conducted under defined humidity conditions for 24 h.
View Article and Find Full Text PDFA Bioengineered Model of the Human Cornea for Preclinical Assessment of Human Ocular Exposure to Environmental Toxicants.
Adv Healthc Mater
January 2025
Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, 19104, USA.
Here a bioengineered platform is introduced to investigate adverse effects of environmental materials on the human cornea. Using primary cells, this system is capable of reproducing the differentiated corneal epithelium and its underlying stroma in the human eye, which can then be treated with externally applied solid, liquid, or gaseous substances in a controlled manner and under physiologically relevant conditions. The proof-of-principle of how this system can be used to simulate human ocular exposure to different classes of environmental toxicants for direct visualization and quantitative analysis of their potential to induce acute corneal injury and inflammation is demonstrated.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!