Novel Theranostics Based On Hybrid Nanoparticles For Early Cancer Detection And Treatment

This dissertation, "Novel Theranostics Based on Hybrid Nanoparticles for Early Cancer Detection and Treatment" by Siyue, Li, 李思越, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Nanoscience and nanotechnology have advanced rapidly in recent years and have made a profound impact in the medical field. Nanoparticles have attracted great attention for their potential as diagnostic and/or therapeutic tools in oncology owing to their unique properties. Theranostics are nanodevices with diagnostic, therapeutic and possibly treatment-monitoring functions for treating cancers. Different noble metal nanoparticles can provide the basic unit for theranostics. Suitably designed and developed noble metal nanoparticle-based theranostics will have multiple functions. In this project, the design, fabrication and performance of novel multifunctional nanodevices for cancer detection and treatment were investigated. The foundation of this project was laid by investigating different types of hybrid nanoparticles for novel theranostics. Different approaches were developed for fabricating core-shell structured hybrid nanoparticles. Highly branched gold and gold-silver bimetallic nanoparticles were firstly made. pH-sensitive folic acid-chitosan (CS-FA) conjugate was then introduced on these nanoparticles to form hybrid nanoparticles with a metal core (Au@CS-FA and Au-Ag@CS-FA). Poly(lactide-co-glycolide) (PLGA) and chitosan (CS) micro- or nanoparticles were also produced to serve as the polymer core for forming hybrid particles with a gold or gold-silver nanoshell (PLGA@Au, CS@Au and PLGA@Ag-Au). Furthermore, Fe3O4@Au nanoparticles having both magnetic and plasmonic properties were investigated. Thermo-sensitive poly(N-isopropylacrylamide) (pNIPAm) polymer or pH-sensitive CS-FA was then coated on Fe3O4@Au nanoparticles, forming new hybrid nanoparticles. The formation mechanisms of nanoparticles and hybrid nanoparticles were studied. Raman reporters (Rhodamine B or 4-mercaptobenzoic acid) and anti-cancer drugs (paclitaxel or 5-fluorouracil) were loaded into the polymer core or shell of hybrid nanoparticles to form multifunctional nanodevices. While the noble metal unit in the nanodevices provided high light-scattering enhancement for achieving photothermal effect, the polymer component encapsulated Raman reporter molecules and put them close to the metal nanoparticles for generating high surface enhanced Raman scattering (SERS) signals. These nanodevices could also serve as excellent drug carriers, and the stimulus-triggered release of incorporated drug was studied. It was shown in this project that the conjugation of targeting ligand (e.g. folic acid) or antibody (e.g. anti-HER2 monoclonal antibody) on hybrid nanoparticles had formed novel theranostics which allowed selective detection, continuous imaging of intracellular behavior and killing of targeted cancer cells. These theranostics could be taken up by specific cancer cells through receptor-mediated endocytosis and internalized into cytoplasma of the cell. These theranostics as stable SERS-active tags and imaging agents for HeLa cells, SK-BR-3 cancer cells or MCF-7 cancer cells were demonstrated. The targeting ability and intracellular uptake of these theranostics were studied. The photothermal effect of the theranostics was investigated using different laser irradiation powers. The anti-cancer treatment could be significantly improved by the synergistic effects of chemo- and photothermal therapy when these theranostics were also tasked as the carrier of anti-cancer drugs. Therefore, combining plasmonic metal

Design of Nanostructures for Theranostics Applications focuses on the theranostics applications of nanostructures. In particular, multifunctional nanoparticles for diagnostics and treatment of different diseases, including those relating to the blood-brain barrier, are discussed in detail. Chapters explore different type of nanostructures, covering design, fabrication, functionalization and optimization, helping readers obtain the desired properties. Written by a diverse range of international academics, this book is a valuable reference resource for those working in both nanoscience and the pharmaceutical industry. Explores how the design of a range of nanomaterials make them effective theranostic agents, including multifunctional core-shell nanostructures, mesoporous silica nanoparticles, and quantum dots Shows how nanomaterials are used effectively for a range of diseases, including breast cancer, prostate cancer and neurological disorders Assesses the pros and cons of using different nanomaterials for different types of treatment

Hybrid nanostructures are nanoparticles which incorporate two or more structures. These structures may represent organic or inorganic material, but they synergistically improve the application of the material for end users. Hybrid Nanostructures for Cancer Theranostics explores how hybrid nanostructures are used in cancer treatment. Focusing on the properties of hybrid nanostructures, the book demonstrates how their unique characteristics can be used to create more effective treatment techniques. In the second half of the book, the chapters examine how hybrid nanostructures are currently being used in practice, assessing the pros and cons of using different types of nanostructures for different treatments. This valuable resource will allow readers to understand the core and emerging concept of functionalization, bioconjugation, hyperthermia and phototherapy of nanoparticles which allows for the greater use of hybrid nanomaterials in cancer theranostics. Shows how the use of novel hybrid nanostructures can lead to more effective cancer treatments. Explores how hybrid nanostructures are used for different treatment types, including photo thermal therapy and drug delivery. Explains how the use of hybrid nanostructures can lead to more rapid cancer diagnosis.

This book provides an updated account of recent advancements in the field of nanotechnology-based theranostics with special emphasis on their application in the diagnosis and treatment of various types of cancer and neurological diseases. The book is divided into two sections; the first section provides an introduction to the nanoscale theranostics & radiopharmaceuticals. The second section highlights the importance of nanoscale theranostics in disease diagnosis & treatment. It presents the potential of nanotechnology for developing nanomedicine and nanotheranostics for the diagnosis and treatment of a variety of illnesses. Further, the book discusses the usefulness of theranostic nanoparticles in the diagnosis of disease, identification of location, and stage, and in providing information about the therapy response. In addition, the book focuses on the clinical applications of nanomaterial radiolabeling in nuclear imaging of cancer and other illness. Towards the end, the bookexamines the toxicity, regulatory protocols, and future aspects of clinical applications of theranostics. This book is an invaluable source for academicians and industrial scientists working in multiple healthcare fields like pharmaceutical and biological sciences, life sciences, biotechnology, biomedical engineering, and nanobiotechnology. ​

Nanotechnology is an interdisciplinary research field that integrates chemistry, engineering, biology, and medicine. Nanomaterials offer tremendous opportunity as well as challenges for researchers. Of course, cancer is one of the world's most common health problems, responsible for many deaths. Exploring efficient anticancer drugs could revolutionize treatment options and help manage cancer mortality. Nanomedicine plays a significant role in developing alternative and more effective treatment strategies for cancer theranostics. This book mainly focuses on the emerging trends using nanomaterials and nanocomposites as alternative anticancer material’s. The book is divided into three main topic areas: how to overcome existing traditional approaches to combat cancer, applying multiple mechanisms to target the cancer cells, and how nanomaterials can be used as effective carriers. The contents highlight recent advances in interdisciplinary research on processing, morphology, structure, and properties of nanostructured materials and their applications to combat cancer.Cancer Nanotheranostics is comprehensive in that it discusses all aspects of cancer nanotechnology. Because of the vast amount of information, it was decided to split this material into two volumes. In the first volume of Cancer Nanotheranostics, we discuss the role of different nanomaterials for cancer therapy, including lipid-based nanomaterials, protein and peptide-based nanomaterials, polymer-based nanomaterials, metal-organic nanomaterials, porphyrin-based nanomaterials, metal-based nanomaterials, silica-based nanomaterials, exosome-based nanomaterials and nano-antibodies. In the second volume, we discuss the nano-based diagnosis of cancer, nano-oncology for clinical applications, nano-immunotherapy, nano-based photothermal cancer therapy, nano-erythrosomes for cancer drug delivery, regulatory perspectives of nanomaterials, limitations of cancer nanotheranostics, the safety of nano-biomaterials for cancer nanotheranostics, multifunctional nanomaterials for targeting cancer nanotheranostics, and the role of artificial intelligence in cancer nanotheranostics.

This book is the first to focus specifically on cancer nanotheranostics. Each of the chapters that make up this comprehensive volume is authored by a researcher, clinician, or regulatory agency member known for their expertise in this field. Theranostics, the technology to simultaneously diagnose and treat a disease, is a nascent field that is growing rapidly in this era of personalized medicine. As the need for cost-effective disease diagnosis grows, drug delivery systems that can act as multifunctional carriers for imaging contrast and therapy agents could provide unique breakthroughs in oncology. Nanotechnology has enabled the development of smart theranostic platforms that can concurrently diagnose disease, start primary treatment, monitor response and initiate secondary treatments if required. In oncology, chemotherapeutics have been routinely used. Some drugs have proven effective but all carry risks of adverse side effects. There is growing interest in using remotely triggered drug delivery systems to limit cytotoxicity in the diseased area. This book reviews the use of theranostic nanoparticles for cancer applications over the past decade. First, it briefly discusses the challenges and limitations of conventional cancer treatments, and presents an overview of the use of nanotechnology in treating cancer. These introductory chapters are followed by those exploring cancer diagnosis and a myriad of delivery methods for nanotherapeutics. The book also addresses multifunctional platforms, treatment monitoring, and regulatory considerations. As a whole, the book aims to briefly summarize the development and clinical potential of various nanotheranostics for cancer applications, and to delineate the challenges that must be overcome for successful clinical development and implementation of such cancer theranostics.

Advances in Cancer Research, Volume 139, provides invaluable information on the exciting and fast-moving field of cancer research. Original reviews are presented on a variety of topics relating to the rapidly developing intersection between nanotechnology and cancer research, with unique sections in the new release focusing on Exosomes as a theranostic for lung cancer, Nanotechnology and cancer immunotherapy, Ultrasound imaging agents and delivery systems, Dendronized systems for the delivery of chemotherapeutics, Thermosensitive liposomes for image-guided drug delivery, Supramolecular Chemistry in Tumor Analysis and Drug Delivery, Gold nanoparticles for delivery of cancer therapeutics, and Single cell barcode microchip for cancer research and therapy. Provides the latest information on cancer research Offers outstanding and original reviews on a range of cancer research topics Serves as an indispensable reference for researchers and students alike

Multifunctional Theranostic Nanomedicines in Cancer focuses on new trends, applications, and the significance of novel multifunctional nanotheranostics in cancer imaging for diagnosis and treatment. Cancer nanotechnology offers new opportunities for cancer diagnosis and treatment. Multifunctional nanoparticles harboring various functions—including targeting, imaging, and therapy—have been intensively studied with the goal of overcoming the limitations of conventional cancer diagnosis and therapy. Thus theranostic nanomedicines have emerged in recent years to provide an efficient and safer alternative in cancer management. This book covers polymer-based therapies, lipid-based therapies, inorganic particle-based therapies, photo-related therapies, radiotherapies, chemotherapies, and surgeries. Multifunctional Theranostic Nanomedicines in Cancer offers an indispensable guide for researchers in academia, industry, and clinical settings; it is also ideal for postgraduate students; and formulation scientists working on cancer. Provides a comprehensive resource of recent scientific progress and novel applications of theranostic nanomedicines Discusses treatment options from a pharmaceutical sciences perspective Includes translational science and targeted CNS cancer treatment

This book reviews the current applications and future prospects of nanomaterials in cancer diagnostics and therapy. Nanomaterials have recently emerged as a remarkable and promising tool for cancer therapy and diagnosis, due to their broad range of intrinsic molecular properties. To overcome the current limitations of nanoparticles in drug delivery systems, attempts have been made to synthesize nanoparticles from biological materials for targeted cancer therapy. This book provides concise evaluations of various potential bio-inspired platforms that mimic natural components of the body and offer effective and versatile drug delivery systems for cancer therapy. It also assesses the potential of nanoparticles to enhance the outcomes of cancer immunotherapy via immune cell activation and tumor microenvironment modulation. The book also summarizes in the applications of nanomaterials for the detection, prevention, and treatment of solid tumors and in the treatment of leukemia and lymphomas. In closing, it discusses ethical issues in nanomedicine, including risk assessment, risk management, and risk communication during clinical trials. The book offers offers a valuable source of information for students, academics, researchers, scientists, clinicians, and healthcare professionals working in nanotechnology and cancer research.