Results 251 to 260 of about 32,992 (301)

Macromolecular drugs acting as precursors of non-macromolecular active substances — Preliminary considerations

Pharmacological Research Communications, 1975
Summary Some principles at the basis of the potential interest of macromolecular drugs are defined. The main lines of a research on purposely tailored synthetic high polymers acting as precursors of non-macromolecular active substances are given. The chemical aspects of proper design of these polymers are discussed in detail.
Paolo Ferruti
exaly   +3 more sources

MACROMOLECULAR STRUCTURES OF HUMIC SUBSTANCES

Soil Science, 1980
ABSTRACTWe investigated humic substances by surface pressure and viscosity measurements at different pHs and neutral salt concentrations to elucidate their macromolecular configurations. We observed that such configurations were not unique; they varied with the changes in the medium.
Kunal Ghosh
exaly   +2 more sources

Characterization of Water-Soluble Macromolecular Substances in Cloud Water

Journal of Atmospheric Chemistry, 2004
In this contribution we present to our knowledge the first investigations of macromolecular, often called humic-like substances (HULIS) in cloud water samples and compare them with water-soluble extracts from atmospheric PM2.5, soils and waters to study its possible origin.
Detlev Möller, Möller Detlev
exaly   +2 more sources

Modification of Macromolecular Substances

open access: yes, 2012
The term “modification of macromolecular substances” is used for chemical and physical processes that are carried out after the actual synthesis, i.e., on the finished macromolecule. Chemical modifications are, for example, the conversion of ester side groups to hydroxy groups, chemical degradation and crosslinking reactions. Physical modifications are
Dietrich Braun   +4 more
openaire   +2 more sources

Deep eutectic solvent: Synthesis, classification, properties and application in macromolecular substances

International Journal of Biological Macromolecules
Deep eutectic solvent (DES) is a kind of solvent prepared by mixing hydrogen bond donors and hydrogen bond acceptors, and have become a hot topic in ecological civilization construction due to its low toxicity and sustainability. Its excellent properties such as low volatility, thermal stability and biodegradability make it stand out among many organic
Xiaofang Liu, Wenya Ma
exaly   +3 more sources

Modes of Absorption of Macromolecular Substances

1995
When we speak about absorption of macromolecular substances we must take into consideration the barriers of the gastrointestinal tract which hinder their uptake and transportation into the lymphatics and the blood. These barriers can be differentiated into morphological and functional barriers.
exaly   +2 more sources

On the mechanism of collapse of monolayers of macromolecular substances. I. Polymethylmethacrylate

Journal of Colloid and Interface Science, 1978
Gabriella Gabrielli, Giulio G.T Guarini
exaly   +2 more sources

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