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This book is a collection of 13 innovative papers describing the state of the art and the future perspectives in solid-phase extraction covering several analytical fields prior to the use of gas or liquid chromatographic analysis. New sorptive materials are presented including carbon nanohorn suprastructures on paper support, melamine sponge functionalized with urea–formaldehyde co-oligomers, chiral metal–organic frameworks, UiO-66-based metal–organic frameworks, and fabric phase sorptive media for various applications. Solid-phase extraction can be applied in several formats aside from the conventional cartridges or mini-column approach, e.g., online solid-phase extraction, dispersive solid-phase microextraction, and in-syringe micro-solid-phase extraction can be very helpful for analyte pre-concentration and sample clean-up. Polycyclic musks in aqueous samples, 8-Nitroguanine in DNA by chemical derivatization antibacterial diterpenes from the roots of salvia prattii, perfluoroalkyl substances (PFASs) in aater samples by bamboo charcoal-based SPE, parabens in environmental water samples, benzotriazoles as environmental pollutants, organochlorine pesticide residues in various fruit juices and water samples and synthetic peptide purification are among the applications cited in this collection. All these outstanding contributions highlight the necessity of this analytical step, present the advantages and disadvantages of each method and focus on the green analytical chemistry guidelines that have to be fulfilled in current analytical practices.

method validation --- nitrated DNA lesion --- benzotriazoles --- microextraction --- LC-MS/MS --- perfluoroalkyl acids --- antibacterial diterpenes --- in-house loaded SPE --- isotope-dilution --- polycyclic musks --- wastewater --- peptide --- HPLC-DAD --- chiral compounds --- derivatization --- extraction --- water --- enantiomeric excess --- sample preparation --- metal-organic frameworks --- solid-phase extraction --- FPSE --- melamine sponge --- preparative high-performance liquid chromatography --- GC–MS/MS --- solid phase peptide synthesis --- HPLC-PDA --- Salvia prattii --- in-syringe micro solid-phase extraction --- organochlorine pesticides --- hydrophilic solid-phase extraction --- response surface methodology --- IBD --- graphene --- sorptive phase --- paper --- liquid chromatography–tandem mass spectrometry --- carbon nanohorns --- gradient elution --- peroxynitrite --- bamboo charcoal --- gas chromatography-mass spectrometry --- environmental samples --- parabens --- solid phase extraction (SPE) --- preparative purification --- antidepressants --- online solid-phase extraction --- organic pollutants --- urea-formaldehyde co-oligomers --- personal care products --- dispersive solid-phase extraction --- fabric phase sorptive extraction --- analyte partitioning

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The development of micro- and nanodevices for blood analysis continues to be a growing interdisciplinary subject that demands the careful integration of different research fields. Following the success of the book “Micro/Nano Devices for Blood Analysis”, we invited more authors from the scientific community to participate in and submit their research for a second volume. Researchers from different areas and backgrounds cooperated actively and submitted high-quality research, focusing on the latest advances and challenges in micro- and nanodevices for diagnostics and blood analysis; micro- and nanofluidics; technologies for flow visualization and diagnosis; biochips, organ-on-a-chip and lab-on-a-chip devices; and their applications to research and industry.

blood viscosity --- Erythrocyte sedimentation rate (ESR) --- T-shaped microfluidic channel --- air-compressed syringe (ACS) --- micro-particle image velocimetry --- viscoelasticity --- microfluidic device --- coflowing streams --- interface --- linear differential equation --- two approximate factors --- dielectrophoresis --- electrophysiological properties --- crossover frequency --- wake or recirculation formation --- dielectric spectra --- air compliance effect --- RBC aggregation --- blood viscoelasticity --- blood velocity fields --- interface in co-flowing streams --- blood flow --- particle tracking --- red blood cells --- manual methods --- automatic methods --- image analysis --- biomicrofluidics --- microfluidics --- blood plasma filtration --- chip extract --- blood molecules --- patient-derived organoids --- colorectal cancer --- 3D model --- drug screening --- diagnostics --- malaria --- optical filters --- reflectance --- spectrophotometry --- TFCalc --- small caliber blood vessel --- composite molding --- micro-nano structure --- tissue repair --- 3D printing --- blood cells --- fourier transform infrared (FTIR) spectroscopy --- functional group --- lab-on-a-chip --- n/a

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This work covers all aspects related to the obtainment, production, design, and processing of biopolymers obtained from natural resources. Moreover, it studies characteristics related to the improvement of their performance to increase their potential application at an industrial level, in line with the concept of a global circular economy. Thus, this work firstly classifies biopolymers obtained from natural resources (e.g., biobased building blocks and biopolymers extracted directly from plants and biomass), and then summarizes several cutting-edge research works focused on enhancing the performance of biopolymers from natural resources to extend their application in the industrial sector, and contribute to the transition to more sustainable plastics.

PHBH --- almond shell flour --- mechanical properties --- thermal characterization --- WPCs --- bacterial polyesters --- poly(3-hydroxybutyrate-co-3hydroxyhexanoate)—PHBH --- poly(ε-caprolactone)—PCL --- binary blends --- improved toughness --- mechanical and thermal characterization --- Cucumis metuliferus --- extraction --- antioxidant activity --- coating --- cellulose acetate --- LDPE --- bilayer packaging --- active packaging --- poly(lactic acid) --- mechanical recycling --- yerba mate --- bionanocomposites --- polysulfide-derived polymers --- cottonseed oil --- fatty acid of cottonseed oil --- sodium soap of cottonseed oil --- PLA --- nanocomposites --- functional properties --- thymol --- migration --- films --- cutin --- cuticles --- bioplastics --- biopolymers --- solanum: CPMAS 13C NMR --- softgels --- mucilage --- in vitro digestion --- bioaccessibility --- bran content --- plasticized wheat flour --- citric acid --- biobased blends --- biopolymer --- carboxymethyl cellulose --- solid polymer electrolyte --- ionic transport --- chitosan --- potato starch --- microwave --- foam --- orthogonal experiments --- empty fruit bunch --- regenerated cellulose --- ionic liquid --- methyl methacrylate --- 3D printing --- syringe extrusion 3D printing --- hydroxypropyl methylcellulose --- orodispersible film --- phenytoin --- PA610 --- halloysite nanotubes (HNTs) --- flame retardant --- cone calorimeter --- agricultural waste --- asparagus --- CMC --- degree of substitution --- DS --- cellulose extraction --- thermoplastic starch --- dolomite --- biocomposite --- sonication --- bacterial cellulose --- nata de coco --- sodium hydroxide --- lignin --- nanoparticles --- biorefinery --- organosolv pretreatment --- polyelectrolyte multi-layers --- sodium alginate --- k-carrageenan --- cellulosic nonwoven textile --- surface functionalization --- characterization --- bio-sorption --- isotherms --- natural fibers --- soy protein --- chitin --- coir --- comfort --- functional textiles --- Circular Bioeconomy --- carbonation reaction --- selectivity optimization --- carbonated epoxidized linseed oil --- non-isocyanate polyurethane --- argan shell particles --- wood plastic composite --- polyethylene --- compatibilization --- air permeability --- fungal fibers --- hemp fibers --- microstructure --- mycocel --- softwood fibers --- virus membrane filtration --- allotropic transition --- choline chloride --- plasticizer --- starch dissolution --- n/a --- poly(3-hydroxybutyrate-co-3hydroxyhexanoate)-PHBH --- poly(ε-caprolactone)-PCL