PMID- 26377443
OWN - NLM
STAT- MEDLINE
DCOM- 20160322
LR  - 20181202
IS  - 1361-6528 (Electronic)
IS  - 0957-4484 (Linking)
VI  - 26
IP  - 40
DP  - 2015 Oct 9
TI  - Reduction of graphene oxide/alginate composite hydrogels for enhanced adsorption 
      of hydrophobic compounds.
PG  - 405602
LID - 10.1088/0957-4484/26/40/405602 [doi]
AB  - Carbon-based materials, consisting of graphene oxide (GO) or reduced GO (rGO), 
      possess unique abilities to interact with various molecules. In particular, rGO 
      materials hold great promise for adsorption and delivery applications of 
      hydrophobic molecules. However, conventional production and/or usage of rGO in 
      aqueous solution often causes severe aggregation due to its low water solubility 
      and thus difficulties in handling and applications. In our study, to prevent the 
      severe aggregation of GO during reduction and to achieve a high adsorption 
      capacity with hydrophobic compounds, GO/alginate composite hydrogels were first 
      prepared and then reduced in an aqueous ascorbic acid solution at 37  degrees C. 
      Adsorption studies with a model hydrophobic substance, rhodamine B, revealed that 
      the reduced composite hydrogels are more highly absorbent than the unreduced 
      hydrogels. In addition, the adsorption properties of the composite hydrogels, 
      which are consequences of hydrophobic and ionic interactions, could be modulated 
      by controlling the degree of reduction for the adsorption of different molecules. 
      The composite hydrogels embedding rGO can be very useful in applications related 
      to drug delivery, waste treatment, and biosensing.
FAU - Kim, Semin
AU  - Kim S
AD  - School of Materials Science and Engineering, Gwangju Institute of Science and 
      Technology, Gwangju 500-715, Korea.
FAU - Yoo, Youngjae
AU  - Yoo Y
FAU - Kim, Hanbit
AU  - Kim H
FAU - Lee, Eunju
AU  - Lee E
FAU - Lee, Jae Young
AU  - Lee JY
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20150917
PL  - England
TA  - Nanotechnology
JT  - Nanotechnology
JID - 101241272
RN  - 0 (Alginates)
RN  - 0 (Hexuronic Acids)
RN  - 0 (Hydrogels)
RN  - 0 (Oxides)
RN  - 7782-42-5 (Graphite)
RN  - 8A5D83Q4RW (Glucuronic Acid)
SB  - IM
MH  - Adsorption
MH  - Alginates/*chemistry
MH  - Glucuronic Acid/chemistry
MH  - Graphite/*chemistry
MH  - Hexuronic Acids/chemistry
MH  - Hydrogels/*chemistry
MH  - Hydrophobic and Hydrophilic Interactions
MH  - Nanotechnology
MH  - Oxidation-Reduction
MH  - Oxides/*chemistry
MH  - Spectrum Analysis, Raman
EDAT- 2015/09/18 06:00
MHDA- 2016/03/24 06:00
CRDT- 2015/09/18 06:00
PHST- 2015/09/18 06:00 [entrez]
PHST- 2015/09/18 06:00 [pubmed]
PHST- 2016/03/24 06:00 [medline]
AID - 10.1088/0957-4484/26/40/405602 [doi]
PST - ppublish
SO  - Nanotechnology. 2015 Oct 9;26(40):405602. doi: 10.1088/0957-4484/26/40/405602. 
      Epub 2015 Sep 17.