|Liposomes are bubble like structures made up of same material as that of cell membrane which is made of phospholipids. It encloses an aqueous compartment. These liposomes can be used to convey vaccines, drugs, enzymes and other substance to the target cells or organs. They have numerous uses as biophysical and biochemical tools.
The impact factor of journal provides quantitative assessment tool for grading, evaluating, sorting and comparing journals of similar kind. It reflects the average number of citations to recent articles published in science and social science journals in a particular year or period, and is frequently used as a proxy for the relative importance of a journal within its field. It is first devised by Eugene Garfield, the founder of the Institute for Scientific Information. The impact factor of a journal is evaluated by dividing the number of current year citations to the source items published in that journal during the previous two years.