Publications by authors named "Zhenrui Zhang"

Effective soil organic carbon (SOC) management can mitigate the impact of climate warming. However, the response of different SOC fractions to warming in abandoned croplands remains unclear. Here, categorizing SOC into particulate and mineral-associated organic carbon (POC and MAOC) with physical fractionation, we investigate the responses of POC and MAOC content and temperature sensitivity (Q) to warming through a 3-year in situ warming experiment (+1.

View Article and Find Full Text PDF

Photocatalytic CO reduction to produce C products remains a challenge. Herein, CuO@Cu@NiAl-LDH composites with three-dimensional ordered core-shell structures were successfully prepared, and the effects of CuO with different exposed surfaces on CO photoreduction were investigated. The synergistic effect of zero-valent Cu and Cu as intermediate electron mediators retains more photogenerated electrons and the Z-scheme heterojunction formed between CuO and NiAl-LDH leads to the enhancement of C selectivity.

View Article and Find Full Text PDF

In recent decades, 3D bioprinting has garnered significant research attention due to its ability to manipulate biomaterials and cells to create complex structures precisely. However, due to technological and cost constraints, the clinical translation of 3D bioprinted products (BPPs) from bench to bedside has been hindered by challenges in terms of personalization of design and scaling up of production. Recently, the emerging applications of artificial intelligence (AI) technologies have significantly improved the performance of 3D bioprinting.

View Article and Find Full Text PDF

Acne vulgaris, rosacea, and hidradenitis suppurativa are enduring inflammatory skin conditions that frequently manifest with akin clinical attributes, posing a considerable challenge for their distinctive diagnosis. While these conditions do exhibit certain resemblances, they also demonstrate distinct underlying pathophysiological mechanisms and treatment modalities. Delving into both the molecular parallels and disparities among these three disorders can yield invaluable insights for refined diagnostics, effective management, and targeted therapeutic interventions.

View Article and Find Full Text PDF

Xist-containing ribonucleoproteins drive autoimmunity in women.

View Article and Find Full Text PDF

Decellularized extracellular matrix (dECM)-based hydrogels are widely applied to additive biomanufacturing strategies for relevant applications. The extracellular matrix components and growth factors of dECM play crucial roles in cell adhesion, growth, and differentiation. However, the generally poor mechanical properties and printability have remained as major limitations for dECM-based materials.

View Article and Find Full Text PDF

Solar-energy-driven CO hydrogenation is a promising strategy to alleviate the climate crisis. Methane is a desirable derivative of CO reduction. However, developing a photocatalyst for highly active and selective CH generation remains challenging.

View Article and Find Full Text PDF

Space three dimension (3D) bioprinting provides a precise and bionic tumor model for evaluating the compound effect of the space environment on tumors, thereby providing insight into the progress of the disease and potential treatments. However, space 3D bioprinting faces several challenges, including prelaunch uncertainty, possible liquid leakage, long-term culture in space, automatic equipment control, data acquisition, and transmission. Here, a novel satellite-based 3D bioprinting device with high structural strength, small volume, and low weight (<6 kg) is developed.

View Article and Find Full Text PDF

Acne vulgaris, rosacea, and hidradenitis suppurativa are enduring inflammatory skin conditions that frequently manifest with akin clinical attributes, posing a considerable challenge for their distinctive diagnosis. While these conditions do exhibit certain resemblances, they also demonstrate distinct underlying pathophysiological mechanisms and treatment modalities. Delving into both the molecular parallels and disparities among these three disorders can yield invaluable insights for refined diagnostics, effective management, and targeted therapeutic interventions.

View Article and Find Full Text PDF

The widespread promotion attempt of biodegradable plastics is considered as an effective solution to address conventional plastic pollution. However, the interaction of microplastics (MPs) easily broken down from biodegradable plastics with the coexisting pollutants in aquatic environments has gained less attention. Herein, we investigated the effects of the aging process and environmental factors on copper (Cu(II)) adsorption behavior by biodegradable polylactic acid and conventional polystyrene MPs.

View Article and Find Full Text PDF
Article Synopsis
  • - A ternary composite (Cu-CuTCPP/CuO/CoAl-LDH) was developed for photocatalytic CO reduction, showing improved effectiveness compared to the CuO monomer.
  • - The composite achieved optimal yields of CH and C2H4 (1.56 μmol g h and 1.92 μmol g h), which were significantly higher—14.45 and 17.45 times—than those from CuO alone, with a notable C2 product selectivity of 37.4%.
  • - Key factors for this improvement include the proximity of Cu sites in the composite that enhance C-C coupling reactions, and a dual Z-scheme heterojunction that effectively separates photogenerated electron
View Article and Find Full Text PDF

Covalent organic frameworks (COFs) are one type of porous organic materials linked by covalent bonds. COFs materials exhibit many outstanding characteristics such as high porosity, high chemical and thermal stability, large specific surface area, efficient electron transfer efficiency, and the ability for predesigned structures. These exceptional advantages enable COFs materials to exhibit remarkable performance in photocatalysis.

View Article and Find Full Text PDF

Converting CO into chemicals and fuels by solar energy can alleviate global warming and solve the energy crisis. In this work, CoAl-LDO/MoO (LDO/MO) composites were successfully prepared and achieved efficient CO reduction under visible light. The CoAl-layered double oxides (CoAl-LDO) evolved from CoAl-layered double hydroxide (CoAl-LDH) exhibited a more robust structure, broader light absorption, and improved CO adsorption ability.

View Article and Find Full Text PDF

Photocatalytic CO reduction to valuable fuels is a promising way to alleviate anthropogenic CO emissions and energy crises. Perovskite oxides have attracted widespread attention as photocatalysts for CO reduction by virtue of their high catalytic activity, compositional flexibility, bandgap adjustability, and good stability. In this review, the basic theory of photocatalysis and the mechanism of CO reduction over perovskite oxide are first introduced.

View Article and Find Full Text PDF

A photocatalytic system driven by solar light is one of the promising strategies for converting CO into valuable energy. The reduction of CO to CH is widely studied since CH has a high energy density as the main component of nonrenewable natural gas. Therefore, it is necessary to develop semiconductor materials with high photocatalytic activity and CH selectivity.

View Article and Find Full Text PDF

The photocatalytic reduction of CO to hydrocarbons is expected to simultaneously alleviate the energy crisis and greenhouse effect. Herein, the ternary BiOCl/C/CuO catalysts with different mass ratios were compounded using a simple hydrothermal method, revealing better photocatalytic activity than the monomer. In the absence of sacrificial agents and photosensitizers, 25% BiOCl/C/CuO showed optimal photocatalytic performance.

View Article and Find Full Text PDF

The formation of multiscale vascular networks is essential for the in vitro construction of large-scale biomimetic cardiac tissues/organs. Although a variety of bioprinting processes have been developed to achieve the construction of mesoscale and large-scale blood vessels, the formation of microvascular networks still mainly depends on the self-assembly behavior of endothelial cells (ECs), which is inefficient and demanding without appropriate stimulus. To address this problem, the elongation and connection of endothelial cells in engineered cardiac tissue (ECT) are sought to promote by electrical stimulation (ES) to achieve vascularization.

View Article and Find Full Text PDF

Photocatalysis driven by solar energy is a feasible strategy to alleviate energy crises and environmental problems. In recent years, significant progress has been made in developing advanced photocatalysts for efficient solar-to-chemical energy conversion. Single-atom catalysts have the advantages of highly dispersed active sites, maximum atomic utilization, unique coordination environment, and electronic structure, which have become a research hotspot in heterogeneous photocatalysis.

View Article and Find Full Text PDF

Converting CO into value-added products by photocatalysis, electrocatalysis, and photoelectrocatalysis is a promising method to alleviate the global environmental problems and energy crisis. Among the semiconductor materials applied in CO catalytic reduction, Cu O has the advantages of abundant reserves, low price and environmental friendliness. Moreover, Cu O has unique adsorption and activation properties for CO , which is conducive to the generation of C products through CC coupling.

View Article and Find Full Text PDF

While there has been considerable success in the three-dimensional bioprinting of relatively large standalone filamentous tissues, the fabrication of solid fibers with ultrafine diameters or those cannular featuring ultrathin walls remains a particular challenge. Here, an enabling strategy for (bio)printing of solid and hollow fibers whose size ranges could be facilely adjusted across a broad spectrum, is reported, using an aqueous two-phase embedded (bio)printing approach combined with specially designed cross-linking and extrusion methods. The generation of standalone, alginate-free aqueous architectures using this aqueous two-phase strategy allowed freeform patterning of aqueous bioinks, such as those composed of gelatin methacryloyl, within the immiscible aqueous support bath of poly(ethylene oxide).

View Article and Find Full Text PDF

Humic substances (HSs) play important roles in the transport and bioavailability of hydrophobic organic compounds (HOCs) in soils. The sorption of HOCs depends on the compositions and structures of HSs which may differ in different climatic zones, however, the sorption behavior of HOCs by HSs in soils from different climatic zones is poorly understood. In this study, different HS fractions (humic acids-HAs, fulvic acids-FAs and humin-HM) in soils from different climatic zones were extracted and used as sorbents for polycyclic aromatic hydrocarbons (PAHs).

View Article and Find Full Text PDF

Volumetric additive manufacturing (VAM) enables fast photopolymerization of three-dimensional constructs by illuminating dynamically evolving light patterns in the entire build volume. However, the lack of bioinks suitable for VAM is a critical limitation. This study reports rapid volumetric (bio)printing of pristine, unmodified silk-based (silk sericin (SS) and silk fibroin (SF)) (bio)inks to form sophisticated shapes and architectures.

View Article and Find Full Text PDF

Anthropogenic activities can lead to the loss of soil organic carbon (SOC) or improve its storage, hence they have the potential to exacerbate or help mitigate climate change. Urban expansion results in an initial loss of soil carbon, but long-term SOC changes during urban development are poorly understood. Herein, we studied SOC changes in the suburban and urban areas of cities with high levels of urbanization based on a long-term resampling campaign in Beijing, and a compilation of SOC content data from 21 other cities with high levels of urbanization across China over the past three decades.

View Article and Find Full Text PDF

Climate warming increases the emissions of soil greenhouse gases (GHGs) by stimulating carbon (C) and nitrogen (N) processes in terrestrial ecosystems, contributing to climate change. However, the responses of soil GHG fluxes to warming from global agricultural ecosystems remain unknown. Here, we evaluate the effects of warming on soil GHG fluxes from global croplands under different agro-ecosystems, cropping systems, crop species, and N fertilizer levels, and determine the potential mechanisms through a meta-analysis of field observations.

View Article and Find Full Text PDF

Overlying water is another potential hotspot of nitrogen removal through anammox and denitrification reactions in river systems. However, N production and the controlling factors have rarely been investigated in the overlying water of high-elevation rivers. This study analyzed the abundance and community of denitrifying and anammox bacteria as well as their effects on N production rates in the overlying water of the Yellow River source region (elevation range: 2687-4223 m).

View Article and Find Full Text PDF