Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins

Siu Fung Lee; Qun Wang; Donald Ka Long Chan; Po Ling Cheung; Ka Wai Wong; Jimmy C. Yu; Beng ONG; Ken C F LEUNG

doi:10.1039/c4nj00318g

Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins

Siu Fung Lee, Qun Wang, Donald Ka Long Chan, Po Ling Cheung, Ka Wai Wong^*, Jimmy C. Yu, Beng ONG, Ken C F LEUNG

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Journal article › peer-review

2 Citations (Scopus)

Abstract

A series of melanin derivatives has been prepared by functionalization with dendritic azobenzene molecules under basic conditions with (K ₂CO₃) and without (Et₃N) a potassium ion. The dendritic melanins treated with K₂CO₃ show excellent solubility in water and tetrahydrofuran. This may be due to the multivalent chelating properties between the heteroatoms of melanin and potassium ions. These highly soluble dendritic melanins were coupled with TiO₂ nanotube arrays easily for enhanced photocurrent generation.

Original language	English
Pages (from-to)	3362-3366
Number of pages	5
Journal	New Journal of Chemistry
Volume	38
Issue number	8
DOIs	https://doi.org/10.1039/c4nj00318g
Publication status	Published - Aug 2014

Scopus Subject Areas

Catalysis
Chemistry(all)
Materials Chemistry

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title = "Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins",

abstract = "A series of melanin derivatives has been prepared by functionalization with dendritic azobenzene molecules under basic conditions with (K 2CO3) and without (Et3N) a potassium ion. The dendritic melanins treated with K2CO3 show excellent solubility in water and tetrahydrofuran. This may be due to the multivalent chelating properties between the heteroatoms of melanin and potassium ions. These highly soluble dendritic melanins were coupled with TiO2 nanotube arrays easily for enhanced photocurrent generation.",

author = "Lee, {Siu Fung} and Qun Wang and Chan, {Donald Ka Long} and Cheung, {Po Ling} and Wong, {Ka Wai} and Yu, {Jimmy C.} and Beng ONG and LEUNG, {Ken C F}",

year = "2014",

month = aug,

doi = "10.1039/c4nj00318g",

language = "English",

volume = "38",

pages = "3362--3366",

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issn = "1144-0546",

publisher = "Royal Society of Chemistry",

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T1 - Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins

AU - Lee, Siu Fung

AU - Wang, Qun

AU - Chan, Donald Ka Long

AU - Cheung, Po Ling

AU - Wong, Ka Wai

AU - Yu, Jimmy C.

AU - ONG, Beng

AU - LEUNG, Ken C F

PY - 2014/8

Y1 - 2014/8

N2 - A series of melanin derivatives has been prepared by functionalization with dendritic azobenzene molecules under basic conditions with (K 2CO3) and without (Et3N) a potassium ion. The dendritic melanins treated with K2CO3 show excellent solubility in water and tetrahydrofuran. This may be due to the multivalent chelating properties between the heteroatoms of melanin and potassium ions. These highly soluble dendritic melanins were coupled with TiO2 nanotube arrays easily for enhanced photocurrent generation.

AB - A series of melanin derivatives has been prepared by functionalization with dendritic azobenzene molecules under basic conditions with (K 2CO3) and without (Et3N) a potassium ion. The dendritic melanins treated with K2CO3 show excellent solubility in water and tetrahydrofuran. This may be due to the multivalent chelating properties between the heteroatoms of melanin and potassium ions. These highly soluble dendritic melanins were coupled with TiO2 nanotube arrays easily for enhanced photocurrent generation.

UR - http://www.scopus.com/inward/record.url?scp=84904347112&partnerID=8YFLogxK

U2 - 10.1039/c4nj00318g

DO - 10.1039/c4nj00318g

M3 - Journal article

AN - SCOPUS:84904347112

SN - 1144-0546

VL - 38

SP - 3362

EP - 3366

JO - New Journal of Chemistry

JF - New Journal of Chemistry

IS - 8

ER -

Potassium ion-mediated synthesis of highly water-soluble dendritically functionalized melanins

Abstract

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