PMID- 19325737
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20100610
LR  - 20220922
IS  - 1422-0067 (Electronic)
IS  - 1422-0067 (Linking)
VI  - 9
IP  - 2
DP  - 2008 Feb
TI  - Noncovalently modified carbon nanotubes with carboxymethylated chitosan: a 
      controllable donor-acceptor nanohybrid.
PG  - 120-130
LID - 10.3390/ijms9020120 [doi]
AB  - We report here the modification of multiwalled carbon nanotubes (MWNTs) with a 
      kind of polysaccharide, carboxymethylated chitosan (cmCs), and their potential 
      usage as donor-acceptor nanohybrids. The modified composites (cmCs/MWNTs) were 
      characterized by high-resolution TEM, FT-IR, TGA and time-resolved spectroscopy. 
      The time-resolved spectroscopic experiments revealed that interfacial electron 
      transfer readily takes place between MWNTs and surface immobilized cmCs chains. 
      The forward electron transfer is fast (< 20 ns) while the backward recombination 
      is slow. The recombination process strongly depends on the chain length of 
      carboxylmethylated chitosan, i.e. a shorter recombination lifetime (~1.1 micros) 
      for the shorter-chain cmCs coated MWNTs against that of the longer-chain cmCs 
      coated MWNTs (~3.5 micros). The results demonstrated that the cmCs/MWNTs 
      composite may be applied as a controllable donor-acceptor nanohybrid.
FAU - Long, Dewu
AU  - Long D
AD  - Department of Nuclear Analysis, Shanghai Institute of Applied Physics, Chinese 
      Academy of Sciences, Shanghai, 201800 China.
FAU - Wu, Guozhong
AU  - Wu G
AD  - Department of Nuclear Analysis, Shanghai Institute of Applied Physics, Chinese 
      Academy of Sciences, Shanghai, 201800 China.
FAU - Zhu, Guanglai
AU  - Zhu G
AD  - Department of Nuclear Analysis, Shanghai Institute of Applied Physics, Chinese 
      Academy of Sciences, Shanghai, 201800 China.
LA  - eng
PT  - Journal Article
DEP - 20080205
PL  - Switzerland
TA  - Int J Mol Sci
JT  - International journal of molecular sciences
JID - 101092791
PMC - PMC2635665
OTO - NOTNLM
OT  - carboxymethylated chitosan
OT  - charge separation
OT  - donor-accepter nanohybrid
OT  - multiwalled carbon nanotubes
EDAT- 2009/03/28 09:00
MHDA- 2009/03/28 09:01
PMCR- 2008/02/01
CRDT- 2009/03/28 09:00
PHST- 2008/01/04 00:00 [received]
PHST- 2008/01/31 00:00 [accepted]
PHST- 2009/03/28 09:00 [entrez]
PHST- 2009/03/28 09:00 [pubmed]
PHST- 2009/03/28 09:01 [medline]
PHST- 2008/02/01 00:00 [pmc-release]
AID - i9020120 [pii]
AID - ijms-9-2-120 [pii]
AID - 10.3390/ijms9020120 [doi]
PST - ppublish
SO  - Int J Mol Sci. 2008 Feb;9(2):120-130. doi: 10.3390/ijms9020120. Epub 2008 Feb 5.