Photostabilization of endogenous porphyrins: excited state quenching by fused ring cyanoacrylates

2014 ◽  
Vol 13 (8) ◽  
pp. 1180-1184 ◽  
Author(s):  
Steffen Jockusch ◽  
Craig Bonda ◽  
Shengkui Hu

Tricyclic cyanoacrylates quench singlet and triplet excited states of the endogenous chromophore protoporphyrin IX to prevent harmful singlet oxygen generation.

Langmuir ◽  
2008 ◽  
Vol 24 (21) ◽  
pp. 12534-12538 ◽  
Author(s):  
Liane M. Rossi ◽  
Paulo R. Silva ◽  
Lucas L. R. Vono ◽  
Adjaci U. Fernandes ◽  
Dayane B. Tada ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2673
Author(s):  
Akshay Kashyap ◽  
Elamparuthi Ramasamy ◽  
Vijayakumar Ramalingam ◽  
Mahesh Pattabiraman

Singlet oxygen (1O2) is the excited state electronic isomer and a reactive form of molecular oxygen, which is most efficiently produced through the photosensitized excitation of ambient triplet oxygen. Photochemical singlet oxygen generation (SOG) has received tremendous attention historically, both for its practical application as well as for the fundamental aspects of its reactivity. Applications of singlet oxygen in medicine, wastewater treatment, microbial disinfection, and synthetic chemistry are the direct results of active past research into this reaction. Such advancements were achieved through design factors focused predominantly on the photosensitizer (PS), whose photoactivity is relegated to self-regulated structure and energetics in ground and excited states. However, the relatively new supramolecular approach of dictating molecular structure through non-bonding interactions has allowed photochemists to render otherwise inactive or less effective PSs as efficient 1O2 generators. This concise and first of its kind review aims to compile progress in SOG research achieved through supramolecular photochemistry in an effort to serve as a reference for future research in this direction. The aim of this review is to highlight the value in the supramolecular photochemistry approach to tapping the unexploited technological potential within this historic reaction.


2021 ◽  
Author(s):  
Esra Tanrıverdi Eçik ◽  
Onur BULUT ◽  
Hasan Hüseyin Kazan ◽  
Elif Şenkuytu ◽  
Bunyemin Cosut

Photodynamic therapy (PDT) is a promising strategy in cancer treatment with its relatively lower side effect profile. Undoubtedly, the key component of PDT is the photosensitizers with a high ability...


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