Preface

Chapter 7 **Isolation of Porphyrins from Heavy Oil Objects 153**

**"Theranostics" 169** Kazutaka Hirakawa

**VI** Contents

**Photocatalysts 189** Rodica-Mariana Ion

**Photocatalysis 223**

Chapter 8 **Control of Fluorescence and Photosensitized Singlet Oxygen-**

Chapter 9 **Porphyrins and Phthalocyanines: Photosensitizers and**

Chapter 10 **Phthalocyanines: Alternative Sensitizers of TiO2 to be Used in**

Mileidy Lerma, Catalina Fajardo and Karen Navarro

William A. Vallejo Lozada, Carlos Diaz-Uribe, Cesar Quiñones,

Makhmut R. Yakubov, Guzalia R. Abilova, Kirill O. Sinyashin, Dmitry V. Milordov, Elvira G. Tazeeva, Svetlana G. Yakubova, Dmitry N. Borisov, Pavel I. Gryaznov, Nikolay A. Mironov and Yulia Y. Borisova

**Generating Activities of Porphyrins by DNA: Fundamentals for**

This book contains synthesis, characterization, and current applications of some phthalocya‐ nines. Since their initial accidental synthesis and characterization in Scotland in the late 1920s, there has been a strong research focus on the use of phthalocyanines (Pcs) as dyes and pigments. In recent years, active research fields have included their use in electrophotogra‐ phy, photovoltaic and solar cells, molecular electronics, Langmuir-Blodgett films, photosen‐ sitizers, electrochromic display devices, gas sensors, liquid crystals, low-dimensional conductors, and optical disks. Phthalocyanines possess interesting biological, electronic, op‐ tical, catalytic, and structural properties. The chapters in this book have been prepared by expert scientists and presented to the public.

#### **Assistant Professor Yusuf Yilmaz**

Naci Topçuoğlu Vocational School, Gaziantep University Turkey
