scholarly journals Small But Powerful Optically: Glass Microcapillaries for Studying Complex Fluids or Biological Systems with Submicrolitre Samples under Harsh Conditions

2020 ◽  
Vol 19 (3) ◽  
pp. 221-227
Author(s):  
Kedi Zhou ◽  
Patrick Bouriat ◽  
Nelly Hobeika ◽  
Abdelhafid Touil ◽  
Anthony Ranchou-Peyruse ◽  
...  
Keyword(s):  
Complex Fluids ◽  
Biological Systems ◽  
Harsh Conditions

The Conformation of Flexible Membranes

1991 ◽  
Vol 248 ◽  
Author(s):  
Reinhard Lipowsky ◽  
Joanna Cook-RÖder
Keyword(s):  
Lipid Bilayers ◽  
Complex Fluids ◽  
Biological Systems ◽  
Theoretical Work ◽  
Conformational Behavior ◽  
Structural Element ◽  
Recent Theoretical Work ◽  
Flexible Membranes

AbstractMembranes such as lipid bilayers are highly flexible surfaces which determine the architecture of biological systems and provide a basic structural element for the mesophases of complex fluids1. Two aspects of their conformational behavior will be considered. First, the morphology of vesicles and membranes is briefly reviewed. Then, recent theoretical work on adhesion (or cohesion) phenomena which involve whole bunches of membranes will be discussed.

Bioprocess-inspired synthesis of multilayered chitosan/CaCO3 composites with nacre-like structures and high mechanical properties

2021 ◽  
Author(s):  
Yidi Li ◽  
Hang Ping ◽  
Zhaoyong Zou ◽  
Jing-Jing Xie ◽  
Weiming Wang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Biological Systems ◽  
Ambient Temperatures ◽  
Harsh Conditions

The formation of natural structures found in biological systems is wonderful and fabricates biomaterials at ambient temperatures, in contrast to our artificial technologies wherein harsh conditions are common prerequisites. A...

Transmission Electron Microscopy of Protein Macromolecules

1971 ◽  
Vol 29 ◽  
pp. 424-425
Author(s):  
Henry S. Slayter
Keyword(s):  
Biological Systems ◽  
Metal Vapor ◽  
Resolving Power ◽  
Electron Microscopic ◽  
Chemical Methods ◽  
Molecular Weights ◽  
The Past ◽  
Physical Chemical ◽  
Transmission Electron

Electron microscopic methods have been applied increasingly during the past fifteen years, to problems in structural molecular biology. Used in conjunction with physical chemical methods and/or Fourier methods of analysis, they constitute powerful tools for determining sizes, shapes and modes of aggregation of biopolymers with molecular weights greater than 50, 000. However, the application of the e.m. to the determination of very fine structure approaching the limit of instrumental resolving power in biological systems has not been productive, due to various difficulties such as the destructive effects of dehydration, damage to the specimen by the electron beam, and lack of adequate and specific contrast. One of the most satisfactory methods for contrasting individual macromolecules involves the deposition of heavy metal vapor upon the specimen. We have investigated this process, and present here what we believe to be the more important considerations for optimizing it. Results of the application of these methods to several biological systems including muscle proteins, fibrinogen, ribosomes and chromatin will be discussed.

Sign in / Sign up

Export Citation Format

Share Document