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Optofluidic devices are of high scientific and industrial interest in chemistry, biology, material science, pharmacy, and medicine. In recent years, they have experienced strong development because of impressive achievements in the synergistic combination of photonics and micro/nanofluidics. Sensing and/or lasing platforms showing unprecedented sensitivities in extremely small analyte volumes, and allowing real-time analysis within a lab-on-a-chip approach, have been developed. They are based on the interaction of fluids with evanescent waves induced at the surface of metallic or photonic structures, on the implementation of microcavities to induce optical resonances in the fluid medium, or on other interactions of the microfluidic systems with light. In this context, a large variety of optofluidic devices has emerged, covering topics such as cell manipulation, microfabrication, water purification, energy production, catalytic reactions, microparticle sorting, micro-imaging, or bio-sensing. Moreover, the integration of these optofluidic devices in larger electro-optic platforms represents a highly valuable improvement towards advanced applications, such as those based on surface plasmon resonances that are already on the market. In this Special Issue, we invited the scientific community working in this rapidly evolving field to publish recent research and/or review papers on these optofluidic devices and their applications.

History of engineering & technology --- opto-fluidics --- micro-manipulation --- cells --- microparticles --- electrowetting display --- aperture ratio --- driving waveform --- hysteresis characteristic --- ink distribution --- response speed --- optofluidics --- ocean monitoring --- colorimetric method --- optoelectrokinetics --- optically-induced dielectrophoresis --- micro/nanomaterials --- separation --- fabrication --- electro-fluidic display --- organic dye --- colored oil --- photo-stability --- micro-thermometry --- laser induced fluorescence --- droplet microfluidics --- zinc oxide --- rhodamine B --- rhodamine 6G --- photocatalysis --- microreactor --- photocatalytic water purification --- paper --- 3D hydrodynamic focusing --- optofluidic --- lab-on-a-chip --- biosensor --- microscale channel --- microfluidic --- liquid-core waveguide --- single layer --- reservoir effect --- sensor --- surface plasmon resonance --- nanohole array --- mechanical properties --- nanofluidic --- nanoplasmonic --- dissolved oxygen --- silver nanoprisms --- colorimetry --- n/a

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Optofluidic devices are of high scientific and industrial interest in chemistry, biology, material science, pharmacy, and medicine. In recent years, they have experienced strong development because of impressive achievements in the synergistic combination of photonics and micro/nanofluidics. Sensing and/or lasing platforms showing unprecedented sensitivities in extremely small analyte volumes, and allowing real-time analysis within a lab-on-a-chip approach, have been developed. They are based on the interaction of fluids with evanescent waves induced at the surface of metallic or photonic structures, on the implementation of microcavities to induce optical resonances in the fluid medium, or on other interactions of the microfluidic systems with light. In this context, a large variety of optofluidic devices has emerged, covering topics such as cell manipulation, microfabrication, water purification, energy production, catalytic reactions, microparticle sorting, micro-imaging, or bio-sensing. Moreover, the integration of these optofluidic devices in larger electro-optic platforms represents a highly valuable improvement towards advanced applications, such as those based on surface plasmon resonances that are already on the market. In this Special Issue, we invited the scientific community working in this rapidly evolving field to publish recent research and/or review papers on these optofluidic devices and their applications.

History of engineering & technology --- opto-fluidics --- micro-manipulation --- cells --- microparticles --- electrowetting display --- aperture ratio --- driving waveform --- hysteresis characteristic --- ink distribution --- response speed --- optofluidics --- ocean monitoring --- colorimetric method --- optoelectrokinetics --- optically-induced dielectrophoresis --- micro/nanomaterials --- separation --- fabrication --- electro-fluidic display --- organic dye --- colored oil --- photo-stability --- micro-thermometry --- laser induced fluorescence --- droplet microfluidics --- zinc oxide --- rhodamine B --- rhodamine 6G --- photocatalysis --- microreactor --- photocatalytic water purification --- paper --- 3D hydrodynamic focusing --- optofluidic --- lab-on-a-chip --- biosensor --- microscale channel --- microfluidic --- liquid-core waveguide --- single layer --- reservoir effect --- sensor --- surface plasmon resonance --- nanohole array --- mechanical properties --- nanofluidic --- nanoplasmonic --- dissolved oxygen --- silver nanoprisms --- colorimetry

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Metal organic frameworks (MOFs) are a class of porous materials with a modular structure. This allows for very wide structural diversity and the possibility of synthesizing materials with tailored properties for advanced applications. Thus, MOF materials are the subject of intense research, with strong relevance to both science and technology. MOFs are formed by the assembly of two components: cluster or metal ion nodes, which are also called secondary building units (SBUs), and organic linkers between the SBUs, usually giving rise to crystalline structures with an open framework and significant porous texture development. The main aim of this Special Issue of Catalysts (ISSN 2073-4344) is to present the most relevant and recent insights in the field of the synthesis and characterization of MOFs and MOF-based materials for advanced applications, including adsorption, gas storage/capture, drug delivery, catalysis, photocatalysis, and/or chemical sensing.

Technology: general issues --- History of engineering & technology --- Materials science --- Metal–organic framework --- Lewis acid --- fructose --- 5-hydroxymethyl furfural --- biomass --- Metal-organic frameworks (MOFs) --- photocatalysis --- carbon dioxide reduction --- renewable energy --- heterogeneous catalysis --- metal organic framework --- surface modification --- Zinc glutarate --- CO2 fixation --- polycarbonate --- Mn-MOF-74 --- modification --- water resistance --- NH3-SCR performance --- environmental pollution --- filter --- gas sorption --- sensor --- hydrogen storage --- electrospinning --- one-pot hydrothermal --- immobilizing recombinant --- His-hCA II --- Ni-BTC nanorods --- metal–organic frameworks --- polyoxometalates --- hybrid materials --- synthesis --- catalysis --- heterogeneous catalyst --- aerobic oxidation --- cyclohexene --- metal organic frameworks --- NH2-MIL-125(Ti) --- water stability --- purification --- layered coordination polymer --- oxidative desulfurization --- denitrogenation extraction --- hydrogen peroxide --- lanthanides --- MOF --- catalyst --- microreactor --- kinetic studies --- metal organic frame works --- CO2 adsorption --- pre combustion --- gas membrane separation --- metal halide perovskites --- metal-organic framework --- fuel cell --- oxygen reduction reaction (ORR) --- metal organic frameworks (MOFs) --- hydrothermal synthesis --- coordination polymers --- crystal structures --- metal-organic frameworks --- carboxylate ligands --- olefin paraffin separations --- propyne --- propylene --- adsorption isotherms --- dynamic breakthrough --- n/a --- Metal-organic framework

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Metal organic frameworks (MOFs) are a class of porous materials with a modular structure. This allows for very wide structural diversity and the possibility of synthesizing materials with tailored properties for advanced applications. Thus, MOF materials are the subject of intense research, with strong relevance to both science and technology. MOFs are formed by the assembly of two components: cluster or metal ion nodes, which are also called secondary building units (SBUs), and organic linkers between the SBUs, usually giving rise to crystalline structures with an open framework and significant porous texture development. The main aim of this Special Issue of Catalysts (ISSN 2073-4344) is to present the most relevant and recent insights in the field of the synthesis and characterization of MOFs and MOF-based materials for advanced applications, including adsorption, gas storage/capture, drug delivery, catalysis, photocatalysis, and/or chemical sensing.

Technology: general issues --- History of engineering & technology --- Materials science --- Metal-organic framework --- Lewis acid --- fructose --- 5-hydroxymethyl furfural --- biomass --- Metal-organic frameworks (MOFs) --- photocatalysis --- carbon dioxide reduction --- renewable energy --- heterogeneous catalysis --- metal organic framework --- surface modification --- Zinc glutarate --- CO2 fixation --- polycarbonate --- Mn-MOF-74 --- modification --- water resistance --- NH3-SCR performance --- environmental pollution --- filter --- gas sorption --- sensor --- hydrogen storage --- electrospinning --- one-pot hydrothermal --- immobilizing recombinant --- His-hCA II --- Ni-BTC nanorods --- metal-organic frameworks --- polyoxometalates --- hybrid materials --- synthesis --- catalysis --- heterogeneous catalyst --- aerobic oxidation --- cyclohexene --- metal organic frameworks --- NH2-MIL-125(Ti) --- water stability --- purification --- layered coordination polymer --- oxidative desulfurization --- denitrogenation extraction --- hydrogen peroxide --- lanthanides --- MOF --- catalyst --- microreactor --- kinetic studies --- metal organic frame works --- CO2 adsorption --- pre combustion --- gas membrane separation --- metal halide perovskites --- metal-organic framework --- fuel cell --- oxygen reduction reaction (ORR) --- metal organic frameworks (MOFs) --- hydrothermal synthesis --- coordination polymers --- crystal structures --- carboxylate ligands --- olefin paraffin separations --- propyne --- propylene --- adsorption isotherms --- dynamic breakthrough

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Biocatalysis is very appealing to the industry because it allows, in principle, the synthesis of products not accessible by chemical synthesis. Enzymes are very effective, as are precise biocatalysts, as they are enantioselective, with mild reaction conditions and green chemistry. Biocatalysis is currently widely used in the pharmaceutical industry, food industry, cosmetic industry, and textile industry. This includes enzyme production, biocatalytic process development, biotransformation, enzyme engineering, immobilization, the synthesis of fine chemicals and the recycling of biocatalysts. One of the most challenging problems in biocatalysis applications is process optimization. This Special Issue shows that an optimized biocatalysis process can provide an environmentally friendly, clean, highly efficient, low cost, and renewable process for the synthesis and production of valuable products. With further development and improvements, more biocatalysis processes may be applied in the future.

Research & information: general --- catechin --- degalloylation --- flavonol --- glycoside hydrolase --- optimization --- tannase --- immobilized DERA --- statin side chain --- continuous flow synthesis --- alginate-luffa matrix --- design of experiments --- Anguilla marmorata --- eel protein hydrolysates --- functional properties --- herbal eel extracts --- agarose --- agarase --- agarotriose --- agaropentaose --- expression --- calycosin --- calycosin-7-O-β-D-glucoside --- glucosyltransferase --- sucrose synthase --- UDP-glucose recycle --- UGT–SuSy cascade reaction --- Candida antarctica lipase A --- surface-display system --- shear rate --- mass transfer rate --- enzymatic kinetic study --- enzymatic synthesis --- β-amino acid esters --- microreactor --- aromatic amines --- Michael addition --- kraft pulp --- cellulose --- xylan --- enzymatic hydrolysis --- Penicillium verruculosum --- glucose --- xylose --- lipase --- acidolysis --- docosahexaenoic acid ethyl ester --- eicosapentaenoic acid ethyl ester --- ethyl acetate --- kinetics --- styrene monooxygenase --- indole monooxygenase --- two-component system --- chiral biocatalyst --- solvent tolerance --- biotransformation --- epoxidation --- NAD(P)H-mimics --- superoxide dismutase (SOD) --- catalase (CAT) --- glutathione reductase (GR) --- aluminum (Al) --- selenium (Se) --- mouse --- brain --- liver --- phosphatidylcholine --- 3,4-dimethoxycinnamic acid --- enzymatic interesterification --- biocatalysis --- Pleurotus ostreatus --- enenzymatic hydrolysis --- peptide --- antioxidant --- hepatoprotective activity --- Yarrowia lipolytica --- whole–cell biocatalysis --- indolizine --- cycloaddition --- trehalose --- viscosity --- enzymes --- protein dynamics --- Kramers’ theory --- protein stabilization --- enzyme inhibition --- Lipase --- transesterification --- 2-phenylethyl acetate --- packed-bed reactor --- solvent-free --- cyclic voltammetry --- electrochemical impedance spectroscopy --- carbon nanotubes --- redox mediators --- CYP102A1 --- naringin dihydrochalcone --- neoeriocitrin dihydrochalcone --- regioselective hydroxylation --- n/a --- UGT-SuSy cascade reaction --- whole-cell biocatalysis --- Kramers' theory