Interaction between graphene oxide and pluronic F127 at the air-water interface

Shanghao Li, Jingru Guo, Ravi A. Patel, Anup L. Dadlani, Roger Leblanc

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Triblock copolymer Pluronic F127 (PF127) has previously been demonstrated to disperse graphene oxide (GO) in electrolyte solution and block the hydrophobic interaction between GO and l-tryptophan and l-tyrosine. However, the nature of this interaction between PF127 and GO remains to be characterized and elucidated. In the present study, we aimed to characterize and understand the interaction between GO and PF127 using a 2-dimensional Langmuir monolayer methodology at the air-water interface by surface pressure-area isotherm measurement, stability, adsorption, and atomic force microscopy (AFM) imaging. Based on the observation of surface pressure-area isotherms, adsorption, and stability of PF127 and PF127/GO mixture at the air-water interface, GO is suggested to change the conformation of PF127 at the air-water interface and also drag PF127 from the interface to the bulk subphase. Atomic force microscopy (AFM) image supports this assumption, as GO and PF127 can be observed by spreading the subphase solution outside the compressing barriers, as shown in the TOC graphic.

Original languageEnglish
Pages (from-to)5742-5748
Number of pages7
JournalLangmuir
Volume29
Issue number19
DOIs
StatePublished - May 14 2013

Fingerprint

UCON 50-HB-5100
Poloxamer
Graphite
Oxides
Graphene
graphene
oxides
Water
air
Air
water
interactions
Atomic force microscopy
isotherms
atomic force microscopy
adsorption
monomolecular films
tyrosine
tryptophan
Adsorption isotherms

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Interaction between graphene oxide and pluronic F127 at the air-water interface. / Li, Shanghao; Guo, Jingru; Patel, Ravi A.; Dadlani, Anup L.; Leblanc, Roger.

In: Langmuir, Vol. 29, No. 19, 14.05.2013, p. 5742-5748.

Research output: Contribution to journalArticle

Li, Shanghao ; Guo, Jingru ; Patel, Ravi A. ; Dadlani, Anup L. ; Leblanc, Roger. / Interaction between graphene oxide and pluronic F127 at the air-water interface. In: Langmuir. 2013 ; Vol. 29, No. 19. pp. 5742-5748.
@article{a7b88377666246e99d864c91727ed3e9,
title = "Interaction between graphene oxide and pluronic F127 at the air-water interface",
abstract = "Triblock copolymer Pluronic F127 (PF127) has previously been demonstrated to disperse graphene oxide (GO) in electrolyte solution and block the hydrophobic interaction between GO and l-tryptophan and l-tyrosine. However, the nature of this interaction between PF127 and GO remains to be characterized and elucidated. In the present study, we aimed to characterize and understand the interaction between GO and PF127 using a 2-dimensional Langmuir monolayer methodology at the air-water interface by surface pressure-area isotherm measurement, stability, adsorption, and atomic force microscopy (AFM) imaging. Based on the observation of surface pressure-area isotherms, adsorption, and stability of PF127 and PF127/GO mixture at the air-water interface, GO is suggested to change the conformation of PF127 at the air-water interface and also drag PF127 from the interface to the bulk subphase. Atomic force microscopy (AFM) image supports this assumption, as GO and PF127 can be observed by spreading the subphase solution outside the compressing barriers, as shown in the TOC graphic.",
author = "Shanghao Li and Jingru Guo and Patel, {Ravi A.} and Dadlani, {Anup L.} and Roger Leblanc",
year = "2013",
month = "5",
day = "14",
doi = "10.1021/la401056t",
language = "English",
volume = "29",
pages = "5742--5748",
journal = "Langmuir",
issn = "0743-7463",
publisher = "American Chemical Society",
number = "19",

}

TY - JOUR

T1 - Interaction between graphene oxide and pluronic F127 at the air-water interface

AU - Li, Shanghao

AU - Guo, Jingru

AU - Patel, Ravi A.

AU - Dadlani, Anup L.

AU - Leblanc, Roger

PY - 2013/5/14

Y1 - 2013/5/14

N2 - Triblock copolymer Pluronic F127 (PF127) has previously been demonstrated to disperse graphene oxide (GO) in electrolyte solution and block the hydrophobic interaction between GO and l-tryptophan and l-tyrosine. However, the nature of this interaction between PF127 and GO remains to be characterized and elucidated. In the present study, we aimed to characterize and understand the interaction between GO and PF127 using a 2-dimensional Langmuir monolayer methodology at the air-water interface by surface pressure-area isotherm measurement, stability, adsorption, and atomic force microscopy (AFM) imaging. Based on the observation of surface pressure-area isotherms, adsorption, and stability of PF127 and PF127/GO mixture at the air-water interface, GO is suggested to change the conformation of PF127 at the air-water interface and also drag PF127 from the interface to the bulk subphase. Atomic force microscopy (AFM) image supports this assumption, as GO and PF127 can be observed by spreading the subphase solution outside the compressing barriers, as shown in the TOC graphic.

AB - Triblock copolymer Pluronic F127 (PF127) has previously been demonstrated to disperse graphene oxide (GO) in electrolyte solution and block the hydrophobic interaction between GO and l-tryptophan and l-tyrosine. However, the nature of this interaction between PF127 and GO remains to be characterized and elucidated. In the present study, we aimed to characterize and understand the interaction between GO and PF127 using a 2-dimensional Langmuir monolayer methodology at the air-water interface by surface pressure-area isotherm measurement, stability, adsorption, and atomic force microscopy (AFM) imaging. Based on the observation of surface pressure-area isotherms, adsorption, and stability of PF127 and PF127/GO mixture at the air-water interface, GO is suggested to change the conformation of PF127 at the air-water interface and also drag PF127 from the interface to the bulk subphase. Atomic force microscopy (AFM) image supports this assumption, as GO and PF127 can be observed by spreading the subphase solution outside the compressing barriers, as shown in the TOC graphic.

UR - http://www.scopus.com/inward/record.url?scp=84877778554&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84877778554&partnerID=8YFLogxK

U2 - 10.1021/la401056t

DO - 10.1021/la401056t

M3 - Article

C2 - 23635085

AN - SCOPUS:84877778554

VL - 29

SP - 5742

EP - 5748

JO - Langmuir

JF - Langmuir

SN - 0743-7463

IS - 19

ER -