Threading, growth, and aggregation of pseudopolyrotaxanes

The Journal of Physical Chemistry. B
Pierandrea Lo NostroPiero Baglioni

Abstract

The formation of supramolecular inclusion compounds (pseudopolyrotaxanes) produced by cyclodextrins and polymers can be monitored through turbidimetry. In this paper, we studied the kinetics of the threading of linear poly(ethylene glycol) chains of different molecular weights and of a four-arm star-like polymer as a function of temperature. The main thermodynamic parameters are extracted. The aggregation and precipitation of pseudopolyrotaxanes are described in terms of the Avrami-Erofe'ev model, which provides relevant information on the mechanism of these processes. SAXS and TGA experiments confirm the structure and hydration of the final products obtained from the different polymers. A new hypothesis for the interaction between pseudopolyrotaxanes that leads to aggregation and precipitation, based on the spatial dielectric anisotropy, is proposed.

References

Nov 5, 1999·International Journal of Pharmaceutics·M E Brown, B D Glass
Aug 22, 2001·Accounts of Chemical Research·C B Lebrilla
Feb 19, 2002·Chemical Reviews·Kenny B. Lipkowitz
Feb 20, 2002·Chemical Reviews·Pierre Terech, Richard G. Weiss
Oct 6, 2004·Langmuir : the ACS Journal of Surfaces and Colloids·Irina N TopchievaMarcus A Hunt
Feb 8, 2006·Langmuir : the ACS Journal of Surfaces and Colloids·Massimo BoniniPiero Baglioni
Mar 9, 2006·Chemical Reviews·Gerhard WenzAxel Müller
Sep 21, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Simona RossiPiero Baglioni

❮ Previous
Next ❯

Citations

Jan 19, 2012·Chemical Reviews·Pierandrea Lo Nostro, Barry W Ninham
Jun 15, 2011·Physical Chemistry Chemical Physics : PCCP·Drew F ParsonsBarry W Ninham
Feb 22, 2014·The Journal of Physical Chemistry. B·Chiara VenturiniPiero Baglioni
Jun 2, 2009·Journal of Colloid and Interface Science·S Syed JafferPradipta Purkayastha
Mar 10, 2016·Physical Chemistry Chemical Physics : PCCP·Emiliano CarrettiPierandrea Lo Nostro
Mar 19, 2015·Langmuir : the ACS Journal of Surfaces and Colloids·Gustavo González-GaitanoCécile A Dreiss
Mar 21, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Edvaldo SabadiniTerence Cosgrove
Aug 14, 2020·The Journal of Physical Chemistry. B·Barry W Ninham, Pierandrea Lo Nostro
Mar 24, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Christophe TraveletGeorges Hadziioannou
Aug 21, 2008·The Journal of Physical Chemistry. B·R JimenezP Lopez-Cornejo
Jul 17, 2009·The Journal of Physical Chemistry. B·Cleber P A AnconiHélio F Dos Santos
Aug 14, 2010·The Journal of Physical Chemistry. B·Andrés Guerrero-MartínezGloria Tardajos
Nov 3, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Salim Khouri, Kam C Tam
Jan 8, 2013·Langmuir : the ACS Journal of Surfaces and Colloids·Xia HanYing Hu
Aug 11, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Mariana Serres-GómezCécile A Dreiss
Oct 30, 2018·Langmuir : the ACS Journal of Surfaces and Colloids·Tao KongZeng-Guo Feng

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.