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"Green chemistry", as a rather novel field of chemistry and chemical engineering, is one of the key routes to assist researchers in sustainable development. Among the most valuable assets of green chemistry, "green solvents" are primary candidates to replace the industry workhorses, i.e., conventional harmful solvents.

This Special Issue on "Advanced Nanomaterials in Biomedical Application" aimed to showcase the most recent advances in nanomaterials, not only in terms of their synthesis and characterization, but also their technological application. This Special Issue welcomed the submission of original research articles and reviews. Research areas include all types of nanomaterials used in the development of medical applications (e.g., therapeutic: anticancer, antibacterial, toxicology; diagnostic: imaging; nanodevices, and others).

Mg alloy is the lightest metallic structural material and possesses the advantages of high specific strength, high specific stiffness, good electromagnetism shield, good damping capacity, good machinability, and easy recycling, etc. Therefore, it has extremely broad application prospects and has drawn considerable interest in the fields of automobile, electronics, electrical appliances, transportation, aerospace, and aviation. In addition, Mg alloys are gradually showing application potential in emerging industries, serving as biodegradable metals in the biomedical field, functional material for hydrogen storage, and so on. This Special Issue (SI), entitled "Research Progress in High-Performance Magnesium Alloy and Its Applications", presents recent developments and excellent results in the field of Mg alloys, and includes 10 articles and one editorial covering some interesting aspects of the topic.

This Special Issue focuses on fundamental and applied aspects of the design, characterization, and properties of biopolymeric drug and gene delivery systems. It contains eleven articles, including nine original research papers and two reviews. The papers cover various topics related to the use of biopolymers (polysaccharides such as cellulose and its derivatives, starch and its derivatives, chitosan and its derivatives, hyaluronan, sodium alginate, agarose, arabinoxylan, heparin, cyclodextrin, peptides and proteins, and synthetic biopolymers) for delivery of various drugs and therapeutic nucleic acids. The biomaterials studied include polymer conjugates, nano- and submicroparticles, gels, films, and implants for drug administration via intravascular, intravitreal, buccal, topical, and implantation routes.

Over the years, the uses and applications of rare earth elements (REEs) diversified in various fields such as catalysis, production of magnets, glasses, alloys, and electronics. This book consists of fifteen chapters, which present recent advances and outlook on REEs and their oxides/salts in catalytic organic transformations, biomedical applications, bioremediation and environmental impacts.

The "Advance in Molecularly Imprinted Polymers" Special Issue establishes a connection between original research papers and reviews that showcase recent progress in the formulation, creation, and wide-ranging utilization of molecularly imprinted polymers. The content within this Special Issue encompasses a range of subjects pertaining to the chemistry of MIPs, encompassing aspects such as molecular modeling, the utilization of novel monomers and innovative synthesis methods for crafting MIPs, the synthesis and application of ion-imprinted materials, the selective extraction of organic compounds, the preparation of sensors, and the implementation of MIPs in the field of medicine. The compilation of scientific papers presented in this collection demonstrates the diverse landscape of research within MIPs chemistry, ultimately leading to the enhancement of desired traits and the exploration of fresh potential applications for these materials.

The most important class of polymers is block copolymers (BCPs) since they can be prepared through different methods and exhibit various properties combined with chemically different segments. The importance of block copolymers can be supported by the multitude of related manuscripts published daily, their use in practical applications in almost all areas, and novel discoveries based on BCPs in many aspects of life. This Special Issue focuses on various matters from different areas of block copolymer research, showing advances and applications in self-assembly, crystallization, synthesis, chemical modification, 3D printing, membranes, energy materials, nanotechnology, hybrid materials, micelles, order-disorder transition, and biomaterials.

This book summarizes the state-of-the-art advances in the area of computational modelling of molecule-based magnets. Nowadays, various computational tools based on DFT, ab initio methods and other techniques are gaining attention in molecular nanomagnets and are successfully used to solve several outstanding problems in this area. This contributed volume discusses the theoretical foundation of the modelling of molecular magnets, starting from fitting the experimental magnetic data of very large molecules to the theory of pseudo-spin Hamiltonian approach and spin-phonon relaxations mechanisms, while it also presents examples of contemporary applications of both transition metal and lanthanide molecular magnets. In addition, the transport characteristics of molecules when placed at an interface and how these assemble on surfaces are also reviewed. This book is a great tool for researchers working in the fields of molecular magnetism and computational/theoretical chemistry and will also benefit graduate students specializing in physical-inorganic chemistry and molecular modelling.Chapter 6 is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.