The action of photosensitizers and serum in a bactericidal process. II. The effects of dyes: hypericin, eosin Y and saphranine O.

نویسندگان

  • Andrzej Jankowski
  • Stanisław Jankowski
  • Agnieszka Mirończyk
  • Joanna Niedbach
چکیده

The aim of the present work was to recognize the reasons for differences in the photodynamic action of dyes against various bacterial strains. It is expected that a better understanding of this problem may help in design of new photosensitizers. The sensitivity of 6 various bacterial strains to the photodynamic action of 5 photosensitizers was determined. The hydrophobicity of cell surface and susceptibility of bacteria to the natural defense mechanism of human serum, were estimated. The differences in the photodynamic efficiency of dyes could be contributed to various affinities of cell membrane to dyes, to known details of membrane architecture as well as to different mechanisms of photosensitization.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A new method for Eosin preparation and examination of its absorption and emission spectra

Eosin is one of the original dyes of xanthenes derivatives. It is also one of the main derivatives of fluorescein and has brilliant fluorescence. Eosin disodium salt called "Eosin Y" is the most useful form of this compound. In common procedures, eosin is usually obtained by the action of bromine on fluorescein, which has not good yield and purity degree. In this research, it is prepared by the...

متن کامل

Identification and determination of hypericin in Hypericum perforatum's products in Iran's market

The intention of this research is qualitative and quantitative study of Hypericum perforatum's products. The main use of this plant is for treatment of depression. Furthermore, it has anti-inflammatory, antispasmodic, antivirus, sedative and anti-migraine activities. Hypericin, which is one of the effective compounds of this plant, has antidepressant effect and it has been evaluated in this res...

متن کامل

Identification and determination of hypericin in Hypericum perforatum's products in Iran's market

The intention of this research is qualitative and quantitative study of Hypericum perforatum's products. The main use of this plant is for treatment of depression. Furthermore, it has anti-inflammatory, antispasmodic, antivirus, sedative and anti-migraine activities. Hypericin, which is one of the effective compounds of this plant, has antidepressant effect and it has been evaluated in this res...

متن کامل

بررسی اثر فتودینامیکی کمپلکس تتراپیریدینو پورفیرازین روی (II)، بر رده‌ی سلولی HeLa

Background and Objective: Photodynamic therapy is a treatment that uses photosensitizer and intense visible light. When photosensitizers get exposed to a specific light wavelength (preferentially in the red region), they produce reactive oxygen species that are toxic to cells. Recently, attention has been focused on porphyrins and their analogs as photosensitizers. Zn (II) tetrapyridinoporphyra...

متن کامل

Oxidation of Alkenes with tert-Butyl Hydroperoxide Catalyzed by Mn(II), Cu(II) and VO(IV) Schiff Base Complexes Encapsulated in the Zeolite-Y: A Comparative Study

Oxovanadium(IV), manganese(II) and copper(II) complexes of a Schiff base ligand derived from 2,4-dihydroxyacetophenone and 1,2-diaminocyclohexane have been encapsulated in the nanocavity of zeolite-Y by flexible ligand method and characterized by metal analysis, IR spectroscopic studies and X-ray diffraction patterns. The encapsulated complexes abbreviated here as CuL-Y, MnL-Y and VOL-Y catalyz...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Polish journal of microbiology

دوره 54 4  شماره 

صفحات  -

تاریخ انتشار 2005