Understanding the Phase Behavior of a Multistimuli-Responsive Elastin-like Polymer: Insights from Dynamic Light Scattering Analysis.
J Phys Chem B
; 128(23): 5756-5765, 2024 Jun 13.
Article
in En
| MEDLINE
| ID: mdl-38830627
ABSTRACT
Elastin-like polymers are a class of stimuli-responsive protein polymers that hold immense promise in applications such as drug delivery, hydrogels, and biosensors. Yet, understanding the intricate interplay of factors influencing their stimuli-responsive behavior remains a challenging frontier. Using temperature-controlled dynamic light scattering and zeta potential measurements, we investigate the interactions between buffer, pH, salt, water, and protein using an elastin-like polymer containing ionizable lysine residues. We observed the elevation of transition temperature in the presence of the common buffering agent HEPES at low concentrations, suggesting a "salting-in" effect of HEPES as a cosolute through weak association with the protein. Our findings motivate a more comprehensive investigation of the influence of buffer and other cosolute molecules on elastin-like polymer behavior.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Elastin
/
Dynamic Light Scattering
Language:
En
Journal:
J Phys Chem B
Journal subject:
QUIMICA
Year:
2024
Document type:
Article
Affiliation country:
United States