Document Detail


Volume Transition and Adhesion Force of Nano-sized Bifunctional Spherical Polyelectrolyte Brushes Observed by Dynamic Light Scattering and Atomic Force Microscopy.
MedLine Citation:
PMID:  22834654     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Stimuli-responsive nanoparticles have attracted considerable interest due to their enormous potential applications. In this paper, nano-sized bifunctional spherical polyelectrolyte brushes (BSPBs) were prepared through grafting random copolymer chains from N-isopropylacrylamide (NIPA) and acrylic acid (AA) onto polystyrene core by photo-emulsion polymerization. The pH- and thermo-responses of the BSPB with different ratio of NIPA and AA were investigated by dynamic light scattering. Atomic force microscopy (AFM) was employed to in situ monitor the pH response of the morphology and surface adhesion of BSPB as well as to visualize BSPB individually or as monolayer in air and liquid. The brush-like shell was illegible in electron microscopy images but clearly observed in AFM images. The results demonstrated that AFM was a powerful tool for in situ observing the stimulus-response of brushes on the surface of nanoparticles.
Authors:
Shibin Huang; Xuhong Guo; Li Li; Yaming Dong
Related Documents :
16812324 - The microanalysis of fixed-interval responding.
16811334 - Intermittent punishment of human responding maintained by intermittent reinforcement.
16364564 - Contextual determinants of temporal control: behavioral contrast in a free-operant psyc...
16811854 - On the minimal conditions for the development of a peak-shift and inhibitory stimulus c...
1631154 - Perceptual asymmetry in texture perception.
24478154 - Spatiotemporal stimulus properties modulate responses to trajectory changes in a locust...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-26
Journal Detail:
Title:  The journal of physical chemistry. B     Volume:  -     ISSN:  1520-5207     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101157530     Medline TA:  J Phys Chem B     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  An evaluation of the inhibitory effects against rotavirus infection of edible plant extracts.
Next Document:  Radiotherapy for Nasopharyngeal Carcinoma and Combined Capecitabine and Nimotuzumab Treatment for Lu...