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[Display omitted] • A passive LC resonant coil is added to the surface of the RF coil to improve the signal-to-noise ratio of the Unilateral Magnetic Resonance sensor. • This work introduces a method for quickly calculating the AC resistance of an RF coil. • According to experiments, the LC resonant coil boosts the UMR's signal-to-noise ratio by three times. Single-sided or unilateral magnetic resonance (UMR) technology has various benefits, such as an open structure, low cost, portability, and nondestructive measurement, in contrast to the conventional closed magnet structure. UMR is widely used in material analysis, well logging, and biomedicine. However, its development is constrained by its poor signal-to-noise ratio (SNR). To enhance the SNR of UMR sensor, a surface coil of LC resonator is added on the Radio Frequency (RF) coil. First, a method of calculating the current in the RF coil including LC resonator is derived. Next, the equivalent AC resistance of the coil is calculated using the partial-element equivalent-circuit (PEEC) method. Finally, the SNR of a UMR sensor incorporating LC resonator is analyzed, and its sensitivity map is provided. Experimental comparisons are made between the UMR sensor with and without a LC resonator. Results show that the SNR of the UMR can be enhanced by up to three times after the LC resonator is loaded. The SNR improves within 30 mm of the coil surface, and this beneficial effect steadily diminishes as the distance increases. This study offers a useful method for improving the signal of UMR sensors. [ABSTRACT FROM AUTHOR]

This study aimed to investigate the impact of different solvents (water, 60% methanol, 60% ethanol and 60% acetone) and methods (conventional solvent extraction, ultrasound-assisted extraction, microwave-assisted extraction and ultrasound-microwave assisted extraction) on the phenolic profile and antioxidant activity of jackfruit (Artocarpus heterophyllus Lam.) pulp. The Folin-Ciocalteu assay was used to determine the total phenolic content (TPC), and antioxidant activity was measured by DPPH and ABTS assays. The phenolic profiles in different extracts were identified using the UPLC-ESI-Q-TOF-MS/MS technique. The results showed that significant differences (p < 0.05) in TPC were found among different extraction methods, the microwave-assisted extraction with 60% ethanol had the highest TPC (2.40 mg GAE/g) compared with the extracts obtained from other methods. Meanwhile, the highest DPPH radical and ABTS radical cation was found in the 60% ethanol-MAE extracts. Correlation analysis further showed a significant positive correlation between TPC and antioxidant activity (R2 > 0.8, p < 0.001). Seventy-eight phenolic compounds were identified by UPLC-ESI-Q-TOF-MS/MS analysis. The most abundant phenolic compounds in jackfruit pulp were identified in negative mode, with 60% ethanol-MAE being the most effective. The quantity of phenolic compounds extracted varied with different extraction methods indicated that the extraction methods had effects on the phytochemical characteristics. [Display omitted] • Polyphenols from jackfruit pulp were extracted using four different extraction methods. • UPLC-ESI-Q-TOF-MS/MS is applied to identify phenolics in different extracts. • Ethanol-MAE extracts had the strongest antioxidant activity. • The antioxidant activity and TPC of the extracts have a significant positive correlation. [ABSTRACT FROM AUTHOR]

Hanfu apple is the main cultivar grown in the cool areas of Northeast, Northwest, and North China. Here, we proposed a chromosome-level Hanfu genome assembly using PacBio, Illumina and Hi-C sequencing data. The total contig length was 628.99 Mb, with scaffold and contig N50 sizes of 36.18 Mb and 1.25 Mb, respectively. The Hanfu genome had a total of 39,617 genes, of which we predicted the function for 38,816. Evolutionary analysis showed that Hanfu may have undergone a γ-event, a recent whole-genome duplication. A comparative analysis was conducted on the genomes of Hanfu and homozygous triploid HFTH1, which were cultured using the anthers of diploid Hanfu apples. Three variants were identified, including 2,155,184 single nucleotide polymorphisms (SNPs), 413,108 insertions/deletions (indels), and 7,587 structural variants (SVs).This high-quality genome will provide a reference for the genetic improvement of apples and the breeding of more varieties with high resistance and high quality. • De novo assembly of a chromosome-level apple genome. • The evolutionary relationship between different apple species was analyzed. • Whole-genome duplication events was analyzed. [ABSTRACT FROM AUTHOR]

• The gene vip3Aa was cloned and expressed in E. coli. • We report for the first time that Vip3Aa is toxic to Aedes aegypti (Diptera) larvae. • Vip3Aa could be used to prevent or delay the onset of Cry toxin resistance in mosquitoes. Bacillus thuringensis (Bt) vegetative insecticidal proteins share no sequence or structural homology with the known Cry proteins. The activity of Vip3Aa is generally considered to be restricted to lepidopteran insects. In this paper, the vip3Aa gene was cloned from Bt subsp. kurstaki HD1 and expressed in E. coli. It was found to be toxic to Aedes aegypti larvae – the first time that dipteran activity has been reported. Furthermore, the potential synergism of Vip3Aa with the Cry toxins was investigated. Although no significant synergism was observed, Vip3Aa could be used in combination with Cry toxins to prevent or delay the onset of resistance. [ABSTRACT FROM AUTHOR]