Singlet oxygen, O2 (a1Δg), the lowest excited electronic state of molecular oxygen, has
been known to the scientific community for∼ 80 years. It has a characteristic chemistry that …

The multi-drug resistant bacteria have become a serious problem complicating therapies to
such a degree that often the term “post-antibiotic era” is applied to describe the situation …

Abstract Background and Objectives Photodynamic therapy (PDT) appears to be endowed
with several favorable features for the treatment of infections originated by microbial …

Abstract Background and Objectives Antimicrobial photodynamic therapy (APDT) employs a
non‐toxic photosensitizer (PS) and visible light, which in the presence of oxygen produce …

BACKGROUND: Photodynamic killing of periodontopathogenic bacteria may be an
alternative to the systemic application of antibacterial drugs used in the treatment of …

Abstract The Infectious Diseases Society of America (IDSA) highlights that over the past
several years, the number of new antibacterial drugs approved continues to decrease …

Abstract The emergence of Multi-Drug-Resistant (MDR) organisms has become a major
worldwide clinical problem. The extensive and routine use of the first-line antibiotics to …

A todo o pessoal do laboratório de Química Orgânica, de um modo especial à Cláudia e à
Lipa, à Joana Brás, ao João, ao Leandro, à Teresa, à Sónia, à Andreia e ao Flávio, pela …

Photodynamic inactivation (PDI) has been used to inactivate microorganisms through the
use of photosensitizers. The inactivation of mammalian viruses and bacteriophages by …

Photodynamic activity of chemical compounds towards microorganisms was first published
at the turn of 20th century and it is based on the concept that a chemical compound, known …