A high-resolution satellite-based solar-induced chlorophyll fluorescence dataset for China from 2000 to 2022.

Solar-induced chlorophyll fluorescence (SIF) serves as a valuable proxy for photosynthesis. The TROPOspheric Monitoring Instrument (TROPOMI) aboard the Copernicus Sentinel-5P mission offers nearly global coverage with a fine spectral resolution for reliable SIF retrieval. However, the present satellite-derived SIF datasets are accessible only at coarse spatial resolutions, constraining its applications at fine scales.

Probing Different Lengths of the Tertiary Amine Head Group on Triglyceride-Mimetic Ionizable Lipid-Mediated siRNA Delivery.

Lipid nanoparticles (LNPs) have been utilized to deliver small interfering RNA (siRNA) to treat acute liver injury. However, LNPs exhibit suboptimal lysosomal escape capabilities and biodegradability. To address these limitations, we have designed triglyceride-mimetic ionizable lipids by conjugating ,-dimethyl tertiary amine head groups to the sn-2 position of triglyceride (TG) through ester bonds.

Carbon-Spaced Tandem-Disulfide Bond Bridge Design Addresses Limitations of Homodimer Prodrug Nanoassemblies: Enhancing Both Stability and Activatability.

Redox-responsive homodimer prodrug nanoassemblies (RHPNs) have emerged as a significant technology for overcoming chemotherapeutical limitations due to their high drug-loading capacity, low excipient-associated toxicity, and straightforward preparation method. Previous studies indicated that α-position disulfide bond bridged RHPNs exhibited rapid drug release rates but unsatisfactory assembly stability. In contrast, γ-disulfide bond bridged RHPNs showed better assembly stability but low drug release rates.

Switchable broadband/narrowband absorber based on a hybrid metasurface of graphene and metal structures.

This paper proposes a switchable broadband/narrowband absorber based on a hybrid metasurface comprising graphene and metal in the millimeter-wave regime. The designed absorber achieves broadband absorption when the surface resistivity of graphene R = 450 / and narrowband absorption when R = 1300 / and 2000 /. The physical mechanism behind the graphene absorber is explored by analyzing the distributions of power loss, electric field, and surface current densities.

Broadband electrically tunable linear polarization converter based on a graphene metasurface.

In this study, a broadband tunable reflective graphene-based linear polarization converter (GLPC) is proposed based on the graphene-ionic liquid-ITO structure (GIIS) integrated with a periodic double split ring resonator (DSRR) in the millimeter-wave regime. The tuning characteristic of the designed GLPC is analyzed using full-wave simulations and the equivalent circuit model method (ECM), which is based on multi-section transmission lines. There is a good agreement between ECM and simulation results.

Catalpol inhibits the proliferation, migration and metastasis of HCC cells by regulating miR‑140‑5p expression.

Hepatocellular carcinoma (HCC) is a frequent malignant tumor. Catalpol is a Chinese medicine extract with a number of pharmacologically active properties. The present study aimed to investigate the effects and mechanisms of catalpol in HCC.

[Studies on the oxidation of tyrosine induced by hydroxyl radical with fluorescence spectroscopic method].

Dityrosine is a marker of tyrosine oxidation. To study effecting factors of hydroxyl radical on tyrosine oxidation, synchronous fluorescence spectra with two dimensional correlation was used. The results showed that the peak position and intensity of dityrosine changed while pH value varied.