Aggregation processes and photophysical properties of chlorophyll a in aqueous solutions modulated by the presence of cyclodextrins
文献信息
Lucia Catucci, Pinalysa Cosma, Paola Fini
In the present paper we report the preliminary results on the behaviour of chlorophyll a (Chl a), the main photosynthetic amphiphilic pigment of green plants, in water and aqueous solutions of cyclodextrins (α-cyclodextrin, hydroxypropyl-β-cyclodextrin, heptakis(2,6-di-O-methyl)-β-cyclodextrin and hydroxypropyl-γ-cyclodextrin). In particular our study was aimed to understand the influence of CDs on solubility and aggregation of Chl a in water and to get information on the interactions between different cyclodextrins and the pigment. The role played by different CDs in affecting the photoactivity of the chlorophyll, with particular attention to the quantum yield of the singlet oxygen production, has been also discussed. The study was carried out by using different spectroscopic (UV–Vis, fluorescence, circular dichroism, time resolved absorption and luminescence) and calorimetric (ITC) techniques.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














