Photodynamic Therapy Mediated By Fullerenes And Their Derivatives

The fullerene molecule with its unique structure of 60 carbon atoms arranged in a soccer ball structure is a molecule of great potential for a variety of applications and has drawn attention of lots of physicists, chemists and engineers. Recently, these nanostructures have also been studied for their biological activities with a view towards using them for biomedical applications. One of the possible therapies for which fullerenes may have a real medical application is the light based therapy called photodynamic therapy (PDT), which is a non-surgical, minimally invasive approach that has been used in the treatment of solid tumors and many non-malignant diseases.

The Fullerene molecule is a carbon-based nano-scale structure of 60 carbon atoms arranged in a 3-dimensional soccer ball- like sphere. It is highly stable, but it can be modified with functional groups for desired biological activity. This new monograph in the ASME-Momentum Press series on Biomedical & Nanomedical Technologies will explore the basic physics and chemistry of Fullerenes, how the Fullerene molecule can be chemically modified with bio-active moieties, and then how it can be applied in clinical use. Examples of antimicrobial and anti-cancer uses will be discussed.

This book provides detailed and current information on using fullerenes (bucky-balls) in photodynamic therapy (PDT), one of the most actively studied applications of photonic science in healthcare. This will serve as a useful source for researchers working in photomedicine and nanomedicine, especially those who are investigating PDT for cancer treatment and infectious disease treatment. The book runs the gamut from an introduction to the history and chemistry of fullerenes and some basic photochemistry, to the application of fullerenes as photosensitizers for cancer and antimicrobial inactivation.

Nanocarbon chemistry and physics is a fast-developing, broad research area – the Nobel prizes in 1996 and 2010 awarded to two key discoveries in the field, and several other nanocarbon achievements of comparable importance. Owing to this rapid growth, the nanocarbon landscape fundamentally changes every few years, creating a need to survey the field on a regular basis to update the books that have become incomplete or even obsolete. As such, this book focuses on fullerenes and metallofullerenes and also on the related areas of nanotubes and graphenes. All the covered research topics provide important fundamental knowledge for the natural sciences, but also for applications in molecular electronics, superconductivity, catalysis, photovoltaics and medical diagnostics. The current nanocarbon research activities have particularly high application potential in the conversion of solar energy, future molecular memories, non-conventional materials for optoelectronics, and new treatments for civilization diseases. Offering a truly up-to-date critical survey of nanocarbon science, its concepts and highlights, it follows the concept of a handbook: it addresses key topics systematically, from historical background, methodological aspects, current important issues, and application potential, all supplied with extensive referencing. With individual chapters written by leading experts with extensive research experience, it is a comprehensive reference resource for graduate students and active researchers alike.

As a new concept of cancer treatment, photodynamic therapy (PDT) has gained great attention in the last few decades. Compared to classical treatments such as surgery, chemotherapy and radiotherapy, PDT is a noninvasive, localized treatment of lesions that shows fewer side effects and has low systemic toxicity. In Chapter One, the basic mechanisms, applications and functional nanomaterials-based drug delivery systems for photodynamic therapy of cancer are reviewed. Chapter Two summarizes the application of different carbon based nanomaterials as agents for PDT and discusses current state-of-the-art use of fullerenes and their derivatives, carbon nanotubes and graphene quantum dots in PDT. Chapter Three covers the benefits and pitfalls of using chemi- and bioluminescent systems as intracellular excitation sources in PDT. Bioluminescence is a widespread natural phenomenon, which consists on emission of light resulting from the oxidation of a substrate in a reaction catalyzed by an enzyme in a biological system. Chapter Four addresses in the synthesis, characterization, and photodynamic activity of a novel hydrophobic photosensitizer 5,10,15,20-tetrakis(benzo[b]thiophene) Porphyrin (BTP) and water soluble photosensitizer 5,10,15,20-Tetrakis(7- sulfonatobenzo[b]thiophene) Porphyrin (SBTP). The authors lab is engaged in the synthesis of PDT molecules incorporating benzothiophene moiety to the meso-position of porphyrin molecules. Chapter Five discusses the Guidelines for Gastroenterological Endoscopy in Patients on Oral Antithrombotic Treatment established by the Japan Gastroenterological Endoscopy Society (JGES).These guidelines classify endoscopic interventions according to the risk of hemorrhage and specify the management of various antithrombotic drugs. Endoscopic mucosal resection (EMR) and endoscopic submucosal dissection (ESD) are classified as high-risk procedures for hemorrhage, but PDT is not included in the guidelines. Because PDT causes ischemic necrosis of tumor tissue, the authors say this could possibly be performed safely in patients on oral antithrombotic therapy. The authors of Chapter Six developed a method of the initial concentration of protoporphyrin-IX in the operated removing glioblastoma tissue using the calibration curve of the fluorescent intensity and the known Pp-IX concentration in order to estimate of the more correlated with the cure rate.

This edited book highlights the central players in the Bionanotechnology field - which are the nanostructures and biomolecules. It provides broad examples of current developments in Bionanotechnology research and is an excellent introduction to the field. The book describes how nanostructures are synthesized and details the wide variety of nanostructures available for biological research and applications. Examples of the unique properties of nanostructures are provided along with the current applications of these nanostructures in biology and medicine. The final chapters of the book describe the toxicity of nanostructures.

Fullerene, molekulare "Fu?balle" aus 60 oder mehr Kohlenstoffatomen, sind eine Substanzklasse mit vielversprechenden Zukunftsaussichten, beispielsweise als Halbleiter, als Basis pharmazeutischer Wirkstoffe oder Polymerwerkstoffe. Dieses Buch bietet Ihnen einen aktuellen Uberblick uber das dynamische Forschungsgebiet. Zur Sprache kommen modernste Themen wie Metallofullerene, Nanorohren und organisch funktionalisierte Fullerenverbindungen. (06/00)

The tools of nanodiagnostics, nanotherapy, and nanorobotics are expected to revolutionize the future of medicine, leading to presymptomatic diagnosis of disease, highly effective targeted treatment therapy, and minimum side effects. Handbook of Nanophysics: Nanomedicine and Nanorobotics presents an up-to-date overview of the application of nan