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author:

Xiao Rong-ping (Xiao Rong-ping.) [1] | Huang Jian-dong (Huang Jian-dong.) [2] (Scholars:黄剑东) | Zhang Han-hui (Zhang Han-hui.) [3]

Indexed by:

EI Scopus SCIE PKU CSCD

Abstract:

Four kinds of covalent serum albumin (BSA or HSA) conjugates of beta-tetrakis[(3,5-dicarboxy)phenoxy]-phthalocyaninatozinc (1) and beta-octakis [(3, 5-dicarboxy)phenoxy]-phthalocyaninatozinc (2) were synthesized by the approach of amide bond. The molar ratio of phthalocyanine to albumin in conjugates were found to be 6 similar to 7 : 1. Their absorption spectra were measured in PBS solution. When conjugated to albumin, compound 1 displays more distinct monomer absorption characteristics (with the maximum absorption at 677 nm) than its free form. Compound 2 in albumin framework exists mostly in monomer form, which is beneficial to photodynamic therapy in aqueous solution. Both 2-BSA and 2-HSA show a sharp and intense Q-band at 681 nm and 682 nm with the molar extinction coefficient of 2.01 X 10(5) and 2.05 X 10(5) mol(-1) . L . cm(-1) respectively. The Q-band absorption spectra and existent state of phthalocyanine 1 or 2 in conjugates were not affected by the pH value of aqueous solution, which are obviously different from that of the corresponding free phthalocyanine.

Keyword:

Albumin Covalent conjugate Photosensitizer Phthalocyanine Spectroscopic property

Community:

  • [ 1 ] [Xiao Rong-ping]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 2 ] [Huang Jian-dong]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China
  • [ 3 ] [Zhang Han-hui]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

Reprint 's Address:

  • 黄剑东

    [Huang Jian-dong]Fuzhou Univ, Coll Chem & Chem Engn, Fuzhou 350108, Peoples R China

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Source :

SPECTROSCOPY AND SPECTRAL ANALYSIS

ISSN: 1000-0593

CN: 11-2200/O4

Year: 2011

Issue: 5

Volume: 31

Page: 1322-1327

0 . 7 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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