Also found in: Medical.


1. Of or relating to the energy of light.
2. Enhancing the effects of or inducing a toxic reaction to light, especially to ultraviolet light.

pho′to·dy·nam′i·cal·ly adv.


1. (General Physics) of or concerned with photodynamics
2. (General Physics) involving or producing an adverse or toxic reaction to light, esp ultraviolet light
3. (Medicine) med denoting a therapy for cancer in which a cytotoxic drug is activated by a laser beam
References in periodicals archive ?
Objective: To evaluate the therapeutic effects of combined 5-aminolevulinic acid (ALA) and photodynamic therapy (PDT) on genital warts and the safety.
Photodynamic therapy (PDT) has been developed as a minimally invasive therapeutic modality for the treatment of various cancers as well as nonmalignant diseases [1, 2].
Quest's Immuno-photodynamic therapy patent entitled "Perylenequinones for use with immunotherapy agents" protects the use of photodynamic therapy for enhancing the effects of any immunotherapeutic agents for treatment of diseases when used in combination.
Photocure ASA, a specialty pharmaceutical company focused on photodynamic technologies in dermatology and cancer, is pleased to announce that the National Institute for Health and Care Excellence (NICE) in the UK has published its first guidelines on bladder cancer, recommending photodynamic diagnosis for improved detection of bladder cancer.
Ultraviolet tissue therapy, photodynamic therapy using light to activate a chemical photosensitizer, and low-level laser therapy, as well as surgical use of lasers are discussed.
The aim of the study was to investigate the effect of photodynamic therapy in the presence of gold nanoparticles coupled with protoporiphyin on the life of cervical cancer cells.
LOS ANGELES -- An investigational type of photodynamic therapy appears promising for treating early cervical intraepithelial neoplasia, finds a phase 2b trial reported at the annual meeting of the Society of Gynecologic Oncology.
This mode of treatment is referred to as photodynamic therapy (PDT) or photoactivated disinfection (PAD).
Photocure is focused on photodynamic technologies in dermatology and cancer.
has debuted its Photodynamic Bone Stabilization System, a way to repair and stabilize a broken ankle, in an 80-year-old woman.
Release date- 18072011 - Oslo, Norway - Photocure ASA (OSE: PHO), a specialty pharmaceutical company focused on photodynamic technologies in cancer and dermatology, has initiated enrolment in a large phase II trial in USA to confirm the safety and efficacy of Visonac.