Osmotic Investigations: Studies on Cell Mechanics (1877), by Wilhelm Pfeffer
نویسندگان
چکیده
Wilhelm Pfeffer [3] published his book Osmotische Untersuchungen: Studien Zur Zellmechanik (Osmotic Investigations: Studies on Cell Mechanics) in 1877 during his time as a professor of botany at the University of Basel [4] in Basel, Switzerland. Gordon R. Kepner and Eduard J. Stadelmann translated the book into English in 1985. Verlag von Wilhelm Engelmann in Leipzig [5], Germany, published the original book in German in 1877 and Van Nostrand Reinhold Company in New York, New York, published the English version in 1985. The book focuses on the cell mechanics of osmotic processes to explain why high pressure exists in plant cells. The book also provides one of the earliest detailed descriptions of the Pfeffer Cell, a devise Pfeffer had created to model and study osmosis in plant cells. The model helped Pfeffer propose theories for how osmosis affected metabolism, growth, and development of plant cells.
منابع مشابه
Pfeffer Cell Apparatus
The Pfeffer Zelle (Pfeffer Cell Apparatus), invented by Wilhelm Pfeffer [6] in 1877, measured the minimum pressure needed to prevent a pure solvent from passing into a solution across a semi-permeable membrane, called osmotic pressure. The apparatus provided Pfeffer with a way to quantitatively measure osmotic pressure. Pfeffer devised the apparatus in the 1870s at the University of Basel [7] i...
متن کاملTransient Electro-osmotic Slip Flow of an Oldroyd-B Fluid with Time-fractional Caputo-Fabrizio Derivative
In this article, the electro-osmotic flow of Oldroyd-B fluid in a circular micro-channel with slip boundary condition is considered. The corresponding fractional system is represented by using a newly defined time-fractional Caputo-Fabrizio derivative without singular kernel. Closed form solutions for the velocity field are acquired by means of Laplace and finite Hankel transforms. Additionally...
متن کاملEarly osmotic history of the plasma membrane.
The following topics, amonig others, aire conisidered: Pfeffer 's hypothesis of an invisible plasma membrane, to account for similarities in the osmotic behavior of plant cells and artificial osmometers; early doubts as to the reality of Pfeffer's membrane; denial by colloid chemists of the existence of plasma membranes because of the supposed failure of cells to obey osmotic laws; demonstratio...
متن کاملCell Volume Changes in Intact Articular Cartilage and Cartilage Explants Following Hypo-osmotic Challenge
INTRODUCTION: Osteoarthritis (OA) is characterized by reduced extracellular osmolarity, i.e. hypo-osmolarity, and increased cell volume. Some studies suggest that deformation behavior of chondrocytes following hypo-osmotic challenge is not affected by the extraor pericellular matrix (ECM/PCM) while others suggest the opposite. Cell responses following hypotonic challenge have been earlier studi...
متن کامل