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The Special Issue “Liquid Crystal Optical Devices” discusses recent developments in the rapidly advancing subject of liquid crystals (LCs).

n/a --- liquid crystal lenses --- optical phased arrays --- gold nanoparticles --- adaptive-focus lenses --- dielectric anisotropy --- liquid-crystal waveguides --- volume gratings --- beam steering --- Mueller matrices --- nematic --- optical fiber device --- liquid crystals --- optoelectronics --- polarization-selective devices --- tapered optical fiber --- waveguides --- fast response time --- Pancharatnam?Berry phase --- optical modulation --- depolarization --- liquid crystal --- optical switching devices --- dual frequency nematic --- phase modulation

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Thanks to their rich chemodiversity, marine natural products represent a unique source of new bioactive metabolites. As the new leading compounds in drug discovery and development, these molecules may represent challenges for the treatment of a number of human diseases, attracting the attention of many researchers during their chemical and biological studies. This Special Issue covers all fields of drugs research in which marine natural products are involved, including their isolation and characterization, biological activities, and medicinal applications as well as synthetic approaches and their related analogues. The cover picture shows “The Nudibranch mollusk Godiva quadricolor on a sponge, reflected under the surface during the low tide. Fusaro Lagoon, Bacoli (Naples)”.

Research & information: general --- Biology, life sciences --- Biochemistry --- alginate --- Sargassum duplicatum --- okra --- antioxidant --- diabetic --- wound healing --- sulfavant --- sulfoquinovosyldiacylglycerols --- sulfoglycolipids --- mass spectrometry --- UHPLC-MS --- lipids --- cancer therapy --- gold nanoparticles --- marine products --- natural products --- photosensitizer --- purpurin 18 --- reactive oxygen species --- seaweed --- biosilica --- diatom frustule --- sustainable production --- drug delivery --- Sargassum ilicifolium --- mangosteen rind --- diabetic mice --- Aquimarina sp. --- diketopiperazine --- N-phenethylacetamide --- epithelial-mesenchymal transition (EMT) --- A549 cells --- n/a

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Thanks to their rich chemodiversity, marine natural products represent a unique source of new bioactive metabolites. As the new leading compounds in drug discovery and development, these molecules may represent challenges for the treatment of a number of human diseases, attracting the attention of many researchers during their chemical and biological studies. This Special Issue covers all fields of drugs research in which marine natural products are involved, including their isolation and characterization, biological activities, and medicinal applications as well as synthetic approaches and their related analogues. The cover picture shows “The Nudibranch mollusk Godiva quadricolor on a sponge, reflected under the surface during the low tide. Fusaro Lagoon, Bacoli (Naples)”.

Research & information: general --- Biology, life sciences --- Biochemistry --- alginate --- Sargassum duplicatum --- okra --- antioxidant --- diabetic --- wound healing --- sulfavant --- sulfoquinovosyldiacylglycerols --- sulfoglycolipids --- mass spectrometry --- UHPLC-MS --- lipids --- cancer therapy --- gold nanoparticles --- marine products --- natural products --- photosensitizer --- purpurin 18 --- reactive oxygen species --- seaweed --- biosilica --- diatom frustule --- sustainable production --- drug delivery --- Sargassum ilicifolium --- mangosteen rind --- diabetic mice --- Aquimarina sp. --- diketopiperazine --- N-phenethylacetamide --- epithelial-mesenchymal transition (EMT) --- A549 cells --- n/a

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Developing new materials is usually a time-demanding and meticulous process, but at the same time, it is one of the more promising solutions to obtain a cleaner, safer, and smart future. More in detail, referring to nanomaterials, an increasingly successfully tool of nanotechnologies, nanoparticles are categorized as materials in which at least one dimension is less than 100 nm in diameter. Among the various nanoparticles’ categories, metal and metal oxides nanoparticles stand as an emerging nanotechnological solution for a wide range of biological and medical physio/pathological open questions. This Special Issue covers the fundamental science, design, characterization, and biomedical applications of metal and metal oxide nanomaterials. The articles here presented will embrace all the aspects determining the performance of these systems, ranging from their synthesis, design, chemical, physical, and biological functionalization, to their characterization and successful applications.

mesoporous zinc oxide --- polyHEMA --- hydrogel --- drug-eluting stent --- pH-triggered drug release --- self-assembly --- nanoshells (hollow spheres) --- janus particles --- pickering emulsion --- bismuth oxide --- nanoparticles --- radiopacity --- chemotherapy --- theragnostic --- metal nanoparticles --- iron oxide nanoparticles --- silver nanoparticles --- gold nanoparticles --- titanium dioxide nanoparticles --- zinc nanoparticles --- reactive oxygen species --- photodynamic therapy --- photothermal therapy --- sonodynamic therapy --- magnetite nanoparticles --- magnetic nanoparticles --- immobilization --- protein --- polymer coating --- n/a

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The exploitation of naturally occurring polymers to engineer advanced nanocomposites and hybrid materials is the focus of increasing scientific activity, explained by growing environmental concerns and interest in the peculiar features and multiple functionalities of these macromolecules. Natural polymers, such as polysaccharides and proteins, present a remarkable potential for the design of all kinds of materials for application in a multitude of domains. This Special Issue collected the work of scientists on the current developments in the field of multifunctional biopolymer-based nanocomposites and hybrid materials with a particular emphasis on their production methodologies, properties, and prominent applications. Thus, materials related to bio-based nanocomposites and hybrid materials manufactured with different partners, namely natural polymers, bioactive compounds, and inorganic nanoparticles, are reported in the Special Issue Advanced Biopolymer-Based Nanocomposites and Hybrid Materials.

Research & information: general --- Technology: general issues --- biopolymer --- silk fibroin --- aerogel --- fiber --- nanomaterials --- nanoparticles --- noble metals --- gold --- platinum --- palladium --- bacterial nanocellulose --- poly(2-methacryloyloxyethyl phosphorylcholine) --- zwitterionic nanocomposites --- dye removal --- water remediation --- antibacterial activity --- lignin --- polylactic acid (PLA) --- 3D printing --- biocomposites --- biopolymers --- bioactive surfaces --- biomaterials --- hybrid organometallic polymers --- laser two-photon polymerisation --- tissue engineering --- gold nanoparticles --- fucoidan --- microwave irradiation --- antitumoral activity --- darkfield imaging --- hyaluronic acid --- Tyrosine --- viscoelastic modulus of HS-IPN hydrogels --- hBMSC differentiations --- nucleus pulposus --- n/a