Using 1-propanol to significantly enhance the production of valuable odd-chain fatty acids by Rhodococcus opacus PD630.

Odd-chain fatty acids (OCFAs) have been reported to possess pharmacological activity and have been used in the manufacture of agricultural and industrial chemicals. We here provided a new method to increase the OCFAs content in oil produced by Rhodococcus opacus PD630 through addition of 1-propanol to the fermentation media. The OCFAs in oil of R.

Effects of octenyl succinic anhydride groups distribution on the storage and shear stability of Pickering emulsions formulated by modified rice starch.

The modified rice starches by octenyl succinic anhydride (OS-RSs) with the same degree of substitution of 0.033 were prepared in aqueous solution using 3% or 20% (w/w) NaOH as a catalyst (OS-RS 3 or OS-RS 20). The results indicated that 20% of NaOH could destroy the structure of starch more seriously and led to more OS groups travelling to interior of starch granules.

High-performance and stable CsPbBr light-emitting diodes based on polymer additive treatment.

Because of their high efficiency and sharp emission, perovskite light-emitting diodes are a promising candidate for next-generation lighting techniques. However, the relatively poor stability of perovskite light-emitting diodes lowers their utility. Therefore, a highly stable perovskite light-emitting diode has to be developed to meet the commercial demand.

Fungal polysaccharide similar with host Dendrobium officinale polysaccharide: Preparation, structure characteristics and biological activities.

Based on the concept of endophytic fungus, if endophytic fungus can produce the same or similar product as the host plant, which will get rid of the restrictions of farmland, seasonal and pest, the active product could be sustainably obtained. In this study, an endophytic fungus polysaccharide FP showing the similar structure with the host Dendrobium officinale polysaccharide (DOP) was sustainably and cost-effectively obtained under preferred reaction conditions with different C/N ratio. The FP with high yield up to 2.

Enhanced removal of bisphenol A from aqueous solution by aluminum-based MOF/sodium alginate-chitosan composite beads.

Aluminum-based metal-organic framework/sodium alginate-chitosan (Al-MOF/SA-CS) composite beads were synthesized and employed as an adsorbent for the removal of bisphenol A (BPA). Several methods, including X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscope (SEM), nitrogen adsorption-desorption isotherms and X-ray photoelectron spectroscopy (XPS), were used to characterize the prepared adsorbents. Results demonstrated that the introduction of CS could change the porosity of the beads and the obtained Al-MOF/SA-CS composite beads possessed higher surface area and total pore volume comparing with the beads without CS.

Influence of peptide characteristics on their stability, intestinal transport, and in vitro bioavailability: A review.

In recent years, large amounts of peptides have been purified and characterized from food protein hydrolysates. Many of these peptides have been demonstrated to be of potential application as health-improving ingredients against plenty of disease conditions, such as cancer, inflammation, and cardiovascular disease. The real efficacy of functional application of these peptides depends on their stability, transport, and bioavailability in target tissues, which in turn depends on the peptides characteristics.

Structure and immunomodulatory activity of polysaccharides from Fusarium solani DO7 by solid-state fermentation.

Two polysaccharides, DGS1 and DGS2, were obtained by solid-state fermentation (SSF) of Fusarium solani DO7, an endophytic fungus isolated from the orchid Dendrobium officinale. Structural characterizations revealed that DGS1 consisted of arabinose, glucose, mannose and galactose with a molar ratio of 2.9:13.

In-situ Grown SnO Nanospheres on Reduced GO Nanosheets as Advanced Anodes for Lithium-ion Batteries.

Nanostructured tin dioxide (SnO) has emerged as a promising anode material for lithium-ion batteries (LIBs) due to its high theoretical capacity (1494 mA h g) and excellent stability. Unfortunately, the rapid capacity fading and poor electrical conductivity of bulk SnO material restrict its practical application. Here, SnO nanospheres/reduced graphene oxide nanosheets (SRG) are fabricated through growth of carbon-coated SnO using template-based approach.

Strong Cellulose-Based Materials by Coupling Sodium Hydroxide-Anthraquinone (NaOH-AQ) Pulping with Hot Pressing from Wood.

Natural cellulose-based materials (CBMs) have considerable potential as strong and lightweight materials for advanced structural applications. Herein, we demonstrate a mechanically strong yet lightweight CBM with highly aligned wood fibers by the coupling pulping of wood blocks with mechanical pressing, which exhibits a tensile strength of 719.0 ± 30.

Novel antibacterial polysaccharides produced by endophyte Fusarium solani DO7.

In this study, the primary antibacterial ingredients in Fusarium solani DO7 were confirmed as polysaccharides. After purification, two polysaccharides, DY1 and DY2, exhibited excellent antibacterial activity, especially to S. aureus and E.

Achieving high-efficiency purely organic room-temperature phosphorescence materials by boronic ester substitution of phenoxathiine.

The effect of boronic ester substitution on the room-temperature phosphorescence properties of phenoxathiine-based derivatives was thoroughly investigated. A significantly improved phosphorescence quantum efficiency of up to 20% in the crystalline state was achieved by delicate molecular manipulation for both enhanced spin-orbital coupling and compact intermolecular packing.

A Wide-Bandgap Conjugated Polymer Based on Quinoxalino[6,5-f ]quinoxaline for Fullerene and Non-Fullerene Polymer Solar Cells.

A wide-bandgap conjugated polymer, PNQx-2F2T, based on a ring-fused unit of quinoxalino[6,5-f  ]quinoxaline (NQx), is synthesized for use as electron donor in polymer solar cells (PSCs). The polymer shows intense light absorption in the range from 300 to 740 nm and favorable energy levels of frontier molecular orbitals. The polymer has afforded decent device performance when blended with either fullerene-based acceptor [6,6]-phenyl-C -butylric acid methyl ester ([70]PCBM) or non-fullerene acceptor 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone-methyl))-5,5,11,11-tetrakis(4-n-hexylphenyl)-dithieno[2,3-d: 2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophene (IT-M).

Dual Interfacial Design for Efficient CsPbI Br Perovskite Solar Cells with Improved Photostability.

A synergic interface design is demonstrated for photostable inorganic mixed-halide perovskite solar cells (PVSCs) by applying an amino-functionalized polymer (PN4N) as cathode interlayer and a dopant-free hole-transporting polymer poly[5,5'-bis(2-butyloctyl)-(2,2'-bithiophene)-4,4'-dicarboxylate-alt-5,5'-2,2'-bithiophene] (PDCBT) as anode interlayer. First, the interfacial dipole formed at the cathode interface reduces the workfunction of SnO , while PDCBT with deeper-lying highest occupied molecular orbital (HOMO) level provides a better energy-level matching at the anode, leading to a significant enhancement in open-circuit voltage (V ) of the PVSCs. Second, the PN4N layer can also tune the surface wetting property to promote the growth of high-quality all-inorganic perovskite films with larger grain size and higher crystallinity.

High-Performance All-Polymer Photodetectors via a Thick Photoactive Layer Strategy.

To achieve high detectivity in all-polymer photodetectors (all-PPDs), a thick-film photoactive layer is favored because it can effectively suppress the dark current density. However, if the photoactive layer of the film is too thick, it leads to reduced responsivity owing to increased recombination loss. We developed high-performance all-PPDs by using a narrowband-gap p-type polymer NT40 and an n-type polymer poly{[ N, N'-bis(2-octyldodecyl)-naphthalene-1,4,5,8-bis(dicarboximide)-2,6-diyl]- alt-5,5'-(2,2'bithiophene)} as the photoactive layer.

Construction of Novel Enzyme-Graphene Oxide Catalytic Interface with Improved Enzymatic Performance and Its Assembly Mechanism.

In the present study, a novel bioinorganic catalytic interface, combining the in situ radical polymerization technique with the noncovalent adsorption method, was successfully fabricated, and its assembly mechanism was explored. The in situ radical polymerization technique was applied to construct a polymer shell around the enzyme surface to form the protein nanocapsule. Then, protein nanocapsules assembled on the surface of graphene oxide (GO) through noncovalent interactions to fabricate the dual-immobilized enzyme system.

Conjugated Polymers with Oligoethylene Glycol Side Chains for Improved Photocatalytic Hydrogen Evolution.

Conjugated polymers are emerging as promising organic photocatalysts for hydrogen evolution from water. However, it is still very challenging for conjugated polymers to realize highly efficient photocatalytic hydrogen evolution. Herein, we demonstrate an efficient strategy of hydrophilic side chain functionalization to boost the hydrogen evolution rates of conjugated polymers.

Removal of heavy metals from aqueous solution using chitosan-combined magnetic biochars.

The use of chitosan combined with magnetic Loofah biochar (CMLB) was investigated for the removal of Cr(VI) and Cu(II) from aqueous solution. The modified biochar had higher Cr(VI) and Cu(II) adsorption capacity than that of pristine biochar. 40%-CMLB showed high Cr(VI) and Cu(II) adsorption capacity of 30.

Fluoro- and Amino-Functionalized Conjugated Polymers as Electron Transport Materials for Perovskite Solar Cells with Improved Efficiency and Stability.

We report here novel bifunctionalized electron transport materials (ETMs) that can improve the efficiency and stability of perovskite solar cells (PVSCs) simultaneously. By functionalizing n-type conjugated polymers with fluoro and amino side chains, PN, PN-F25%, and PN-F50% with varied contents of fluoro and amino side chains are prepared. It is found that the amino side chains in ETMs efficiently improve the interface contact and electron collection of PVSCs, with improved power conversion efficiency from 14.

Stable Sn/Pb-Based Perovskite Solar Cells with a Coherent 2D/3D Interface.

Low-band-gap metal halide perovskite semiconductor based on mixed Sn/Pb is a key component to realize high-efficiency tandem perovskite solar cells. However, the mixed perovskites are unstable in air due to the oxidation of Sn. To overcome the stability problem, we introduced N-(3-aminopropyl)-2-pyrrolidinone into the CHNHSnPbICl thin film.

Encapsulation of Vitamin E and Soy Isoflavone Using Spiral Dextrin: Comparative Structural Characterization, Release Kinetics, and Antioxidant Capacity during Simulated Gastrointestinal Tract.

Spiral dextrin subfraction (SD-40) obtained through enzyme debranching and gradient ethanol precipitation could interact with vitamin E (VE) or soy isoflavone (SIO) to form V-type inclusion complexes. The formation of two inclusion complexes was confirmed by Fourier transform-infrared spectroscopy, atomic force microscopy, and differential scanning calorimetry. In this study, an in vitro gastrointestinal model was used to investigate the breakdown of inclusion complexes and release behavior of bioactive compounds.

Interface Engineering for All-Inorganic CsPbI Br Perovskite Solar Cells with Efficiency over 14.

In this work, a SnO /ZnO bilayered electron transporting layer (ETL) aimed to achieve low energy loss and large open-circuit voltage (V ) for high-efficiency all-inorganic CsPbI Br perovskite solar cells (PVSCs) is introduced. The high-quality CsPbI Br film with regular crystal grains and full coverage can be realized on the SnO /ZnO surface. The higher-lying conduction band minimum of ZnO facilitates desirable cascade energy level alignment between the perovskite and SnO /ZnO bilayered ETL with superior electron extraction capability, resulting in a suppressed interfacial trap-assisted recombination with lower charge recombination rate and greater charge extraction efficiency.

Enhanced adsorption performance of MoS nanosheet-coated MIL-101 hybrids for the removal of aqueous rhodamine B.

A MoS nanosheet-coated chromium terephthalate MIL-101 octahedron hybrid (denoted as MoS/MIL-101) was prepared via a simple hydrothermal reaction. The obtained MoS/MIL-101 hybrid exhibited a significantly enhanced adsorption ability toward rhodamine B (RhB) as compared with pure MoS, MIL-101, and the physical mixture of the two. The results demonstrate that the MoS/MIL-101 hybrid had a high uptake capacity (Q ≈ 344.

TNF-α inhibits the migration of oral squamous cancer cells mediated by miR-765-EMP3-p66Shc axis.

Whereas TNF-α can facilitate the metastasis of oral squamous cancer cells (OSCC), whether it inhibits the metastasis is not clear so far. In this study, we demonstrated that high dose TNF-α at 100ng/mL could in vitro significantly inhibit the migration of two OSCC cell lines, CAL-27 and SCC-25. To explore the related mechanisms, we focused on the involvement of the microRNAs and found that TNF-α increased the expression of miR-765.