Certain fluorescent dyes such as Blankophor have a high affinity for the b -glycosidically linked polysaccharides such as glucan and chitin, which are main the constituents of the fungal cell wall. Therefore, these fluorescent dyes can be used for screening clinical samples for the presence of fungal elements. This procedure can be performed using the following specimens: Nail, Skin, Bronchial alveolar lavage fluid, Sputum and Biopsies. - [Read Detection of Fungi by Fluorescence Microscopy Using Fluorescent Brighteners]
The technique has many advantages—plasmids may be used for delivery, DNA theoretically can be delivered to any cell type, and genes may be delivered to cells in vitro, ex vivo, or in vivo. DNA-coated gold particles are distributed evenly along the length of the tubing, which is subsequently cut into short sections of cartridges to be used in a gene gun. The Helios Gene Gun uses a pulse of helium to launch the DNA-coated particles, spreading them onto the target cells. - [Read Gene Delivery to Skin Using Biolistics Protocol]
Skin fibroblasts are incorporated into 3-D collagen lattices containing the test compounds. An inhibition of lattice contraction indicates a possible toxic effect which is verified by trypan blue exclusion for cell viability. - [Read Human Skin Fibroblast/Collagen Lattice Cytotoxicity Test]
Preparation of Endothelial Cells Protocol- https://catalog.invitrogen.com/index.cfm?fuseaction=iProtocol.unitSectionTree&treeNodeID=E538DDD4A302A0DF2CDDD9363072C1CA&objectid=6673B460F50B90057960CE47ABB708A4
Endothelial cells, which line blood vessels, can be prepared from a variety of tissues. They are frequently prepared from the umbilical vein, which is relatively easy to obtain. The procedure is clearly described and provides a large population of highly purified endothelial cells. There are also methods for obtaining endothelial cells from other tissues such as fat, skin, and mucosa. These methods require special care and generate smaller populations of cells. - [Read Preparation of Endothelial Cells Protocol]