Quad-narrowband perfect absorption in near infrared for optical switching and sensing based on quasi-bound states in the continuum.

The absorption of light based on quasi-BICs is a significant factor influencing the performance of solar cells and photodetectors. Nevertheless, the development of multiple narrowband perfect absorbers remains a significant challenge. In this study, three distinct types of BIC were first discovered to coexist within a metasurface structure.

Applications of Isosceles Triangular Coupling Structure in Optical Switching and Sensing.

In the case of waveguide-based devices, once they are fabricated, their optical properties are already determined and cannot be dynamically controlled, which limits their applications in practice. In this paper, an isosceles triangular-coupling structure which consists of an isosceles triangle coupled with a two-bus waveguide is proposed and researched numerically and theoretically. The coupled mode theory (CMT) is introduced to verify the correctness of the simulation results, which are based on the finite difference time domain (FDTD).

A tunable perfect absorber based on a black phosphorus/bowtie shaped cavity hybrid metasurface.

The practical application of black phosphorus (BP) is limited by its low absorption characteristics. In this work, we propose a perfect absorber based on a BP and bowtie shaped cavity, which has high tunability and excellent optical performance. This absorber effectively increases the light-matter interaction and achieves perfect absorption by using a monolayer BP and a reflector to form a Fabry-Perot cavity.

Whole genome resequencing reveal patterns of genetic variation within Colletotrichum acutatum species complex from rubber trees in China.

The Colletotrichum acutatum species complex possesses a diverse number of important traits, such as a wide host range and host preference, different modes of reproduction, and different strategies of host infection. Research using comparative genomics has attempted to find correlations between these traits. Here, we used multi-locus techniques and gene genealogical concordance analysis to investigate the phylogenetic relationships and taxonomic status of the Colletotrichum acutatum species complex using field isolates obtained from rubber trees.

Global chromatin landscapes identify candidate noncoding modifiers of cardiac rhythm.

Comprehensive cis-regulatory landscapes are essential for accurate enhancer prediction and disease variant mapping. Although cis-regulatory element (CRE) resources exist for most tissues and organs, many rare - yet functionally important - cell types remain overlooked. Despite representing only a small fraction of the heart's cellular biomass, the cardiac conduction system (CCS) unfailingly coordinates every life-sustaining heartbeat.

Isolation and Identification of Secondary Metabolites Produced by Phytopathogenic Fungus from .

The secondary metabolites of the phytopathogenic fungus CC01 from were investigated. As a result, two new compounds, 5-acetyl-7-hydroxy-6- methoxybenzofuran-2(3)-one () and ()-2-(2,3-dihydrofuro [3,2-]pyridin-2-yl)propan-2-ol (), together with seven known compounds, 4,6,8-trihydroxy-3,4-dihydronaphthalen-1(2)-one (), 3,6,8-trihydroxy-3,4-dihydronaphthalen-1(2)-one (), curvulin acid (), 2-methyl-5-carboxymethyl- 7-hydroxychromone (), tyrosol (), -hydroxybenzoic acid () and cerevisterol (), were isolated from the fermentation extract by comprehensive silica gel, reverse phase silica gel, Sephadex-LH20 column chromatography and high-performance liquid chromatography (HPLC). The structures of these compounds were identified by using high-resolution electrospray mass spectrometry (HRESIMS), nuclear magnetic resonance spectroscopy (NMR), optical rotation, ultraviolet and infrared spectroscopy techniques and a comparison of NMR data with those reported in the literature.

Characterization and necrosis-inducing activity of necrosis- and ethylene-inducing peptide 1-like proteins from , the causative agent of rubber tree anthracnose.

, a member of the species complex, is an important pathogen causing rubber tree anthracnose. Genome-wide comparative analysis showed this species complex contains more genes encoding necrosis- and ethylene-inducing peptide 1-like proteins (NLPs) than other species complexes, but little is known about their necrosis-inducing roles in host. The aim of this study was to analyze NLPs number and type in , and characterize their necrosis-inducing activity in host or non-host.

A single factor elicits multilineage reprogramming of astrocytes in the adult mouse striatum.

SignificanceOutside the neurogenic niches, the adult brain lacks multipotent progenitor cells. In this study, we performed a series of in vivo screens and reveal that a single factor can induce resident brain astrocytes to become induced neural progenitor cells (iNPCs), which then generate neurons, astrocytes, and oligodendrocytes. Such a conclusion is supported by single-cell RNA sequencing and multiple lineage-tracing experiments.

Genomic Characteristics and Comparative Genomics Analysis of Two Chinese Strains Causing Corynespora Leaf Fall (CLF) Disease.

Rubber tree leaf fall (CLF) disease, caused by the fungus , is one of the most damaging diseases in rubber tree plantations in Asia and Africa, and this disease also threatens rubber nurseries and young rubber plantations in China. isolates display high genetic diversity, and virulence profiles vary significantly depending on cultivar. Although one phytotoxin (cassicolin) has been identified, it cannot fully explain the diversity in pathogenicity between species, and some virulent strains do not contain the cassiicolin gene.

First Report on Neopestalotiopsis aotearoa of Rubber Tree in China.

Natural rubber is an important industrial raw material and an economically important perennial in China. In recent years, A new leaf fall disease, caused by Neopestalotiopsis aotearoa Maharachch., K.

Pathogenic Adaptations Revealed by Comparative Genome Analyses of Two spp., the Causal Agent of Anthracnose in Rubber Tree.

and cause leaf disease that differ in their symptoms in rubber tree (), and pathogenicity of these two fungal species is also not identical on different cultivars of rubber tree. This divergence is often attributed to pathogen virulence factors, namely carbohydrate-active enzymes (CAZymes), secondary metabolites (SM), and small-secreted protein (SSP) effectors. The draft genome assembly and functional annotation of potential pathogenicity genes of both species obtained here provide an important and timely genomic resource for better understanding the biology and lifestyle of spp.

Author Correction: Using Gjd3-CreEGFP mice to examine atrioventricular node morphology and composition.

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

Genomic characteristics and comparative genomics analysis of the endophytic fungus Sarocladium brachiariae.

Background: Sarocladium brachiariae is a newly identified endophytic fungus isolated from Brachiaria brizantha. A previous study indicated that S. brachiariae had antifungal activity; however, limited genomic information restrains further study.

Facile synthesis of FeO@Au core-shell nanocomposite as a recyclable magnetic surface enhanced Raman scattering substrate for thiram detection.

The FeO@Au core-shell nanocomposites, as the multifunctional magnetic surface enhanced Raman scattering (SERS) substrates, were fabricated successfully by the seeds growth method based on the FeO-Au core-satellite nanocomposites. The SERS properties of the FeO-Au core-satellite nanocomposites and the FeO@Au core-shell nanocomposites were compared using 4-aminothiophenol (4-ATP) as the probe molecule. It was found that FeO@Au core-shell nanocomposites showed better SERS performance than FeO-Au core-satellite nanocomposites.

Using Gjd3-CreEGFP mice to examine atrioventricular node morphology and composition.

The atrioventricular node (AVN) coordinates the timing of atrial and ventricular contraction to optimize cardiac performance. To study this critical function using mouse genetics, however, new reagents are needed that allow AVN-specific manipulation. Here we describe a novel Gjd3-CreEGFP mouse line that successfully recombines floxed alleles within the AVN beginning at E12.

Engineering Charge Transfer Characteristics in Hierarchical Cu₂S QDs @ ZnO Nanoneedles with p⁻n Heterojunctions: Towards Highly Efficient and Recyclable Photocatalysts.

Equipped with staggered gap p-n heterojunctions, a new paradigm of photocatalysts based on hierarchically structured nano-match-shaped heterojunctions (NMSHs) Cu₂S quantum dots (QDs)@ZnO nanoneedles (NNs) are successfully developed via engineering the successive ionic layer adsorption and reaction (SILAR). Under UV and visible light illumination, the photocatalytic characteristics of Cu₂S@ZnO heterojunctions with different loading amounts of Cu₂S QDs are evaluated by the corresponding photocatalytic degradation of rhodamine B (RhB) aqueous solution. The results elaborate that the optimized samples (S3 serial specimens with six cycles of SILAR reaction) by means of tailored the band diagram exhibit appreciable improvement of photocatalytic activities among all synthesized samples, attributing to the sensitization of a proper amount of Cu₂S QDs.

Multiplexed Engineering and Analysis of Combinatorial Enhancer Activity in Single Cells.

The study of enhancers has been hampered by the scarcity of methods to systematically quantify their endogenous activity. We develop Mosaic-seq to systematically perturb enhancers and measure their endogenous activities at single-cell resolution. Mosaic-seq uses a CRISPR barcoding system to jointly measure a cell's transcriptome and its sgRNA modulators, thus quantifying the effects of dCas9-KRAB-mediated enhancer repression in single cells.

Theoretical analysis of ultrahigh figure of merit sensing in plasmonic waveguides with a multimode stub.

We propose an expanded coupled mode theory to analyze sensing performance in a plasmonic slot waveguide side-coupled with a multimode stub resonator. It is confirmed by the finite-difference time-domain simulations. Through adjusting the parameters, we can realize figure of merit (FOM) of ∼59,010, and the sensitivity S can reach to 75.

Influential and theoretical analysis of nano-defect in the stub resonator.

We investigate a classic optical effect based on plasmon induced transparency (PIT) in a metal-insulator-metal (MIM) bus waveguide coupled with a single defective cavity. With the coupled mode theory (CMT), a theoretical model, for the single defective cavity, is established to study spectral features in the plasmonic waveguide. We can achieve a required description for the phenomenon, and the theoretical results also agree well with the finite-difference time-domain (FDTD) method.

Theoretical analysis and applications in inverse T-shape structure.

An inverse T-shape structure, consisting of a bus waveguide coupled with two perpendicular rectangular cavities, has been investigated numerically and theoretically. The position of the transparency window can be manipulated by adjusting the lateral displacement between the two perpendicular cavities. The effects of changing different structural parameters on the transmission features are investigated in detail.