Excerpt from Colloids in Biology and Medicine This book is an attempt to apply the results of colloid research to biology. The reader may find the undertaking somewhat bold, since the number of facts are so few, and the gaps so numerous that a complete picture is impossible. I find myself somewhat in the position of a palaeontologist who wishes to reconstruct the ancestry of the entire organized world from some chance fragments. Each day brings new finds which must be fitted into his plan and which confirm his views or show that he has been on a false trail. From the nature of things, it happens that I must more often indicate problems than report experimental results. This probably will prove a stimulus to those who wish to take active part in the development of our young science. I wish to state one additional fact: it was not my purpose to make this book exhaustive. I have endeavored to give a general view, and since the work is addressed to biologists and physicians as well as colloid investigators, I have striven to give a clear picture of the subject, disregarding moot questions. - On this account the "Introduction to The Study of Colloids" was abbreviated as much as possible without danger of obscuring the subsequent parts. - Those who wish to stud more thoroughly pure colloid chemistry, I refer to the excellent books of Herbert Freundlich "Kapillarchemie" Leipzig, 1909, and Wolfgang Oswald "Grundris der Kolloidchemie," Dresden. Accordingly, in the arrangement of the first part, I have not followed the usual system, but have been guided by a desire to make easy of comprehension the matters most important to biologists and physicians. On this account I have considered it advisable to devote considerable space to the "Methods of Colloid Research." Some new unpublished experimental data of my own and some placed at my disposal by others have been included. It is finally my privilege to thank all those who have helped me in the preparation of this book, particularly Professors H. Apolant, R. Hober, H. Sachs, and Dr. H. Siedentopf. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Colloids in Biology and Medicine Accordingly, in the arrangement of the first part, I have not fol lowed the usual system, but have been guided by a desire to make easy of comprehension the matters most important to biologists and physicians. On this account I have considered it advisable to de vote considerable space to the Methods of Colloid Research. Some new unpublished experimental data of my own and some placed at my disposal by others have been included. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

The important role of ?nely dispersed matter and surfaces in medicine is not always fully understood and appreciated. Speci?cally, ?ne particles (solid or liquid) in the size range of several nanometers to several micrometers have a tremendous effect on our lives, because they can be bene?cial or detrimental to our well-being. Such particles are present in living bodies as red blood cells or cholesterol crystals in the gall bladder. They are ubiquitous in the environment, where they can cause many diseases, such as asbestosis, silicosis, and black lung disease, but they are also used in diagnostic tests, drug delivery, and numerous other applications. More recently, evidence has become available that drug formulations with active components in a ?nely dispersed state may signi?cantly affect their functionality. Furthermore, with miniaturization of medical instrumentation, the size of the components is necess- ily reduced to colloid or even smaller range. This volume is a collection of several chapters dealing with diverse topics of colloids and surfaces relevant to medical applications. Thus, Siiman describes the use of optical properties of uniform colloidal particles as probes in ?ow cytometry. Giesche focuses on the preparations and properties of exceedingly uniform silica spheres for different uses, such as in chromatography. In modi?ed forms, silica p- ticles with incorporated dyes are employed in diagnostics and those combined with tiny magnetic entities in drug delivery.

Colloids show great potential in a wide variety of applications, including drug delivery and medical imaging, and the design and fabrication of colloid systems has attracted considerable interest in the research community. Colloids in Biotechnology describes developments in the field of biotechnological applications in the past decade and bridges t