Controllable Photodynamic Therapy Implemented by Regulating Singlet Oxygen Efficiency

نویسندگان

  • Wenting Wu
  • Xiaodong Shao
  • Jianzhang Zhao
  • Mingbo Wu
چکیده

With singlet oxygen (1O2) as the active agent, photodynamic therapy (PDT) is a promising technique for the treatment of various tumors and cancers. But it is hampered by the poor selectivity of most traditional photosensitizers (PS). In this review, we present a summary of controllable PDT implemented by regulating singlet oxygen efficiency. Herein, various controllable PDT strategies based on different initiating conditions (such as pH, light, H2O2 and so on) have been summarized and introduced. More importantly, the action mechanisms of controllable PDT strategies, such as photoinduced electron transfer (PET), fluorescence resonance energy transfer (FRET), intramolecular charge transfer (ICT) and some physical/chemical means (e.g. captivity and release), are described as a key point in the article. This review provide a general overview of designing novel PS or strategies for effective and controllable PDT.

برای دانلود رایگان 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

Photosensitization of coronene–purine hybrids for photodynamic therapy

Photosensitization properties of coronene-purine (Cor-P) hybrids for photodynamic therapy (PDT) have been investigated in this work. Eight hybrid Cor-P models have been designed by the additional of adenine (A) and guanine (G) nucleobase to Cor species. The evaluated absorption and emission energies indicated that the singular models are not good at all for PDT process whereas their hybrid mode...

متن کامل

Photodynamic therapy by a device probe tip

A pointsource photodynamic therapy (PDT) technique has been developed to deliver sensitizer, light and oxygen that are precursors to singlet oxygen (a cytotoxic excited state of O2) in a highly localized and controllable fashion. The characterization of cell killing radius in vitro provides insight into the release kinetics and diffusion of the sensitizer. This opens the door to an instrument t...

متن کامل

Intracellular gold nanoparticle aggregation and their potential applications in photodynamic therapy.

Gold nanoparticles (Au NPs) with opposite surface charge can form aggregates through electrostatic interaction and exhibit surface plasmon resonance (SPR) induced-localized electromagnetic (EM) field enhancement under light irradiation. Intracellular aggregation of Au NPs can further improve the therapeutic efficiency of Au NP-enhanced photodynamic therapy of cancer by promoting singlet oxygen ...

متن کامل

C0nr00834f 1451..1455

We report a novel nanoparticle that is promising for photodynamic therapy applications, which consists of a p-conjugated polymer doped with a singlet oxygen photosensitizer. The nanoparticles exhibit highly efficient collection of excitation light due to the large excitation cross-section of the polymer. A quantum efficiency of singlet oxygen production of 0.5 was determined. Extraordinarily la...

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

عنوان ژورنال:

دوره 4  شماره 

صفحات  -

تاریخ انتشار 2017