Giemsa stain is a staining reagent that was developed in the early 20th century by Gustav Giemsa to aid in cellular microscopy. Different cells and parts of cells stain slightly different colors, allowing appropriate dia... More »

Good brick staining products include iron oxide-based brick tints and penetrating masonry stain. Both of these products can refresh the look of old brick that has faded due to years of weathering. More » Home & Garden Home Maintenance

Changing the background on an electronic document before printing or using a staining liquid for hard copies will make paper look old. There are a number of different methods that will give paper an aged look. More »

The MacClean CS series water softeners remove magnesium and calcium, decrease iron, manganese and other staining metals, and feature adjustable timers that let people choose specific functions based on particular water c... More » Home & Garden Appliances

Liquid starch is often used to give clothes a crisp edge and to make the fabric resistant to wrinkling and staining. Liquid laundry starches allow easier ironing of clothes, as one may simply pour the mixture into the wa... More » Home & Garden Cleaning Laundry

Mouthwash leads to bad breath, increases the risk of developing oral cancer, and causes staining of teeth and an uncomfortable stinging sensation in the mouth, states Daily Mail. This is because of some of its ingredient... More »

Gram-negative rods, or bacilli, are rod-shaped bacteria that give a negative result with Gram staining. These bacteria have a thin peptidoglycan layer sandwiched between the inner and outer cell membrane. This layer is r... More »