PMID- 32766667
OWN - NLM
STAT- MEDLINE
DCOM- 20210426
LR  - 20210426
IS  - 1364-548X (Electronic)
IS  - 1359-7345 (Linking)
VI  - 56
IP  - 72
DP  - 2020 Sep 10
TI  - Charge transfer in DHICA eumelanin-like oligomers: role of hydrogen bonds.
PG  - 10481-10484
LID - 10.1039/d0cc04702c [doi]
AB  - Eumelanin is a versatile bio-polymer with a heterogeneous structure and atypical 
      functionalities. The constituent parts of eumelanin can be used to engineer 
      systems with spectacular properties. We will describe some design principles to 
      accentuate the charge transfer properties in eumelanin, especially those 
      containing dihydroxyindole carboxylic acid (DHICA). We will show that the 
      oligomers of DHICA can form isomers (atropisomers) of almost equivalent stability 
      and the difference in charge transfer properties between these isomers is 
      strongly dependent on the presence of inter-monomer hydrogen bonds.
FAU - Choudhury, Arpan
AU  - Choudhury A
AD  - School of Chemical Science, Indian Association for the Cultivation of Science, 
      Jadavpur, Kolkata, India. pcdg@iacs.res.in.
FAU - Ghosh, Debashree
AU  - Ghosh D
AUID- ORCID: 0000-0003-0726-7878
AD  - School of Chemical Science, Indian Association for the Cultivation of Science, 
      Jadavpur, Kolkata, India. pcdg@iacs.res.in.
LA  - eng
PT  - Journal Article
PL  - England
TA  - Chem Commun (Camb)
JT  - Chemical communications (Cambridge, England)
JID - 9610838
RN  - 0 (Carboxylic Acids)
RN  - 0 (Melanins)
RN  - 0 (Polymers)
RN  - 12627-86-0 (eumelanin)
SB  - IM
MH  - Carboxylic Acids/chemistry
MH  - Electron Transport
MH  - Hydrogen Bonding
MH  - Isomerism
MH  - Melanins/*chemistry
MH  - Polymers/*chemistry
EDAT- 2020/08/09 06:00
MHDA- 2021/04/27 06:00
CRDT- 2020/08/09 06:00
PHST- 2020/08/09 06:00 [pubmed]
PHST- 2021/04/27 06:00 [medline]
PHST- 2020/08/09 06:00 [entrez]
AID - 10.1039/d0cc04702c [doi]
PST - ppublish
SO  - Chem Commun (Camb). 2020 Sep 10;56(72):10481-10484. doi: 10.1039/d0cc04702c.