In this work, magnetic Fe3O4 nanoparticles treated with (3-aminopropyl)triethoxysilane were used as immobilization material. Lipase was covalently bound to the amino-functionalized by using glutaraldehyde a coupling reagent activity recovery up 70% and enzyme binding efficiency of 84%. The lipase particles confirmed assays, transmission electron microscopy, X-ray powder diffraction, Fourier transform infrared spectra. Moreover, immobilized found be able catalyze transesterification soybean...

New multicomponent domino reactions (MDRs) have been established for the synthesis of spiro{pyrazolo[1,3]dioxanopyridine}-4,6-diones, spiro{isoxazolo[1,3]dioxanopyridine}-4,6-diones and pyrazolo[3,4-b]pyridines. The MDRs were conducted by reacting readily available inexpensive starting materials in aqueous solution under microwave irradiation. A total 26 examples examined, showed a broad substrate scope high overall yields (76–93%). new mechanism has proposed to explain reaction process...

A redox-responsive mesoporous silica nanoparticle (RRMSN) was developed as a drug nanocarrier by noncovalent functionalization of MSNs with amphiphilic peptides containing the RGD ligand. The alkyl chain stearic acid (C18) thiol terminal group anchored on surface via disulfide bond, and peptide (AP) C18-DSDSDSDSRGDS coated self-assembly through hydrophobic interactions between octadecyl groups chains AP, which played role gatekeeper collectively. In vitro release profiles demonstrated that...

Abstract Telluride molybdenum (MoTe 2 ) nanosheets with wide near‐infrared (NIR) absorbance are functionalized polyethylene glycol‐cyclic arginine‐glycine‐aspartic acid tripeptide (PEG‐cRGD). After loading a chemotherapeutic drug (doxorubicin, DOX), MoTe ‐PEG‐cRGD/DOX is used for combined photothermal therapy and chemotherapy. With the high conversion efficiency, exhibits favorable cells killing ability under NIR irradiation. Owing to cRGD‐mediated specific tumor targeting, shows efficient...

Abstract Developing a new type of superhydrophilic/underwater superoleophobic oil/water separation membrane with high efficiency, throughput and bacteria has essential theoretical practical significance for treating oily medical wastewater. This work modified commercial PVDF membranes by knife coating cross-linking, PVDF/PVA/LPB/MOF hybrid are manufactured. Hydrophilic polyvinyl alcohol (PVA) endows the good hydrophilicity. Lauramidopropyl Betaine (LPB) enhances intermolecular hydrogen...

Zirconium based metal organic frameworks (Zr-MOFs) have become popular in engineering studies due to their high mechanical stability, thermostability and chemical stability. In our work, by using a theoretical kinetic adsorption isotherm, we can exert MOFs an acid dye process, experimentally exploring the of MOFs, external behavior internal mechanism. The results indicate spontaneous endothermic nature, maximum capacity this material for orange 7 (AO7) could be up 358 mg·g-1 at 318 K,...

Harvesting solar energy for water desalination is one of the most promising ways to produce clean water. Because absorber detachment and base material degradation, steam generator still suffers from drastic loss even when using materials with high photothermal conversion efficiency. We herein propose a practical design that can maintain both working efficiency operating life. This device made Paulownia wood covalently bonded MXene on top. wood, as natural heat insulator, servers an excellent...

Abstract The flame retardant polypropylene containing the micro‐envelope core‐shell structure retardant, which encapsulated ammonium polyphosphate into melamine‐formaldehyde resin and sodium silicate through in situ polymerization was prepared with polyamide 6, added as a carbon‐forming agent. composition of polyphosphate, were characterized. fire safety thermal stability investigated showed an improvement including limiting oxygen index, thermogravimetric analysis, vertical burning tests,...

The direct ethanol fuel cells in an alkaline medium have a broad vision of applications because their large energy density, reasonable power and environmentally friendly features. Herein, we present facile one-step method to synthesize PdAg nanosheet assemblies (NSAs) mixed solution N,N-dimethylformamide water with the addition molybdenum hexacarbonyl cetyltrimethylammonium bromide. Pure Pd NSA shows irregular shape while NSAs gradually undergo process from solid assembly hollow structure...

Purpose: Study aims to optimize the synthesis conditions for silver nanoparticle composites [ALP(D)-AgNPs] using a rapid and environmentally friendly method investigate antioxidant, antibacterial, anticancer activities of fabricated composite. Methods: The polysaccharide component ALP-D was extracted purified from fruits Amomum longiligulare subsequently used further experiments. structure characterized by FT-IR, monosaccharide composition molecular weight.The optimal green nanoparticles...

A series of new polycyclic-fused isoxazolo[5,4-b]pyridines were obtained by a one-pot tandem reaction under microwave irradiation in water. Without any use additional reagent or catalyst, the synthetic protocol represents green one and makes this methodology suitable for library synthesis drug discovery efforts.

A series of novel one-dimensional (1-D) lanthanide coordination polymers (CPs), with the general formula {[Ln(bptcH)(H2O)2]·H2O}n (Ln = NdIII (1), EuIII (2), GdIII (3), TbIII (4), DyIII (5), HoIII (6), or ErIII (7)) have been synthesized by solvothermal reactions corresponding lanthanide(III) picrates and 2,2′-bipyridine-3,3′,6,6′-tetracarboxylic acid (bptcH4). These structurally characterized single-crystal X-ray diffraction, IR, PXRD, thermogravimetric (TGA), elemental analysis....

Abstract Molybdenum ditelluride nanosheets encapsulated in few‐layer graphene (MoTe 2 /FLG) are synthesized by a simple heating method using Te and Mo powder subsequent ball milling with graphite. The as‐prepared MoTe /FLG nanocomposites as anode materials for lithium‐ion batteries exhibit excellent electrochemical performance highly reversible capacity of 596.5 mAh g −1 at 100 mA , high rate capability (334.5 A ), superior cycling stability (capacity retention 99.5% over 400 cycles 0.5 )....

Skin optical clearing can significantly enhance the ability of biomedical imaging. Some alcohols and sugars have been selected to be agents (OCAs). In this work, we paid attention potential disaccharides. Sucrose maltose were chosen as typical disaccharides compare with fructose, an excellent monosaccharide-OCA, by using molecular dynamics simulation ex vivo experiment. The experimental results indicated that efficacy skin increases linearly concentration for each OCA. Both theoretical...

Isostructural zirconium-based metal⁻organic frameworks (Zr-MOFs) have attracted the attention of researchers because their remarkable stability at high temperatures and pressures chemical stabilities against acids bases. Due to this stability, Zr-MOFs can be utilized in adsorption research, performance a Zr-MOF depends on pore size surroundings MOF. In study, as dimensions changed was carried out, material remained stable, best state achieved 235 mg/g. Through simulation theoretical kinetic...

Metal-organic frameworks (MOFs) are researched extensively in adsorption and separation, energy storage other fields. However, researches of MOFs on fluorescence sensors relatively few the initial stage. In this review, recent advances MOFs-based systematically quoted, including materials design manufacturing strategies, as emerging applications about detection various analytes, such metal ion, anion small molecule. allusion to disparate material sensor needs earnestly designing matching...

Sensitive determination of C-reactive protein (CRP) is great significance because it an early indicator inflammation in cardiovascular disease and acute myocardial infarction. A disposable electrode with integrated three-electrode system (working, reference, counter electrodes) has potential the detection biomarkers. In this work, electrochemical immunosensing platform was fabricated on screen-printed carbon (SPCE) by introducing nanochannel arrays gated signals, which can achieve sensitive...