3,317 results match your criteria: "Center for Environment[Affiliation]"

Efficient Aerial Water Harvesting with Self-Sensing Dynamic Janus Crystals.

J Am Chem Soc

November 2024

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, P. R. China.

Water scarcity is one of the most pressing issues of contemporary societal development that requires innovative technologies where the material not only harvests water but also plays an active role in the process. Here, we demonstrate a highly efficient optical self-sensing approach to humidity capture from the air, where both humidity-harvesting and water-transduction functionalities are imparted on slender organic crystals by partial silanization via layer-by-layer hybridization. We report that due to the integration of the harvesting of aerial moisture and the collection of the condensed water, the ensuing Janus-type crystals capture humidity with the highest-to-date water collection efficiency of 15.

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Dryland agriculture is fundamental to global crop production and vital to food security. Conservation tillage is extensively practiced in USA wheat cultivation. Meanwhile, the adoption of conservation tillage by Chinese farmers is limited.

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Coupling Effect of Elemental Carbon and Organic Carbon on the Changes of Optical Properties and Oxidative Potential of Soot Particles under Visible Light.

Environ Sci Technol

November 2024

SKL-ESPC, College of Environmental Sciences and Engineering, Center for Environment and Health, Peking University, Beijing 100871, China.

Soot particles, coming from the incomplete combustion of fossil or biomass fuels, feature a core-shell structure with inner elemental carbon (EC) and outer organic carbon (OC). Both EC and OC are known to be photoactive under solar radiation. However, research on their coupling effect during photochemical aging remains limited.

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Article Synopsis
  • The study investigates how agricultural plastic film (APF) residue moves due to soil erosion and its related phthalate acid esters (PAEs) emissions into China's water systems from 1998 to 2020.
  • Results show significant APF residue loss, peaking in 2016, with the highest losses observed in various regions of China, particularly the southwestern and eastern areas.
  • PAEs emissions were also assessed, revealing lower ecological risks to aquatic environments, while providing important data for understanding and managing plastic contamination issues.
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Logarithmic and Archimedean organic crystalline spirals.

Nat Commun

October 2024

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, P. R. China.

Article Synopsis
  • - Crystals typically have fixed shapes, but researchers have developed a method to create spiral-shaped crystals by applying a special polymer blend, allowing these crystals to dynamically respond to changes in temperature and humidity.
  • - When exposed to humidity, these spiraled crystals partially uncurl quickly, changing their shape from a logarithmic spiral to an Archimedean spiral, showcasing their adaptability.
  • - The modified spirals can perform tasks similar to plant tendrils, such as wrapping around objects or lifting weights, making them promising for applications in flexible sensors and soft robotics, while also presenting innovative ways to grow crystalline materials in new shapes.
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Persistent organic pollutants exposure and risk of depression: A systematic review and meta-analysis.

Environ Res

December 2024

Chinese Academy of Environmental Planning, 100041, Beijing, China. Electronic address:

Recently, more and more epidemiological studies have examined the impact of exposure to persistent organic pollutants (POPs) on depression, but the results are inconsistent. Thus, we conducted a systematic review and meta-analysis to better understand the effects of POPs exposure on the risk of depression in the general population. We searched PubMed, Embase, Web of Science, and Scopus databases for studies before March 20, 2024.

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Daily Activity Rhythms of Animals in the Southwest Mountains, China: Influences of Interspecific Relationships and Seasons.

Animals (Basel)

October 2024

Liziping Giant Panda's Ecology and Conservation Observation and Research Station of Sichuan Province (Science and Technology Department of Sichuan Province), China West Normal University, Nanchong 637009, China.

Article Synopsis
  • Temporal and spatial factors significantly influence the interactions between apex predators, mesocarnivores, and herbivores, with prey modifying their behaviors in response to predator activity.
  • A study using 115 camera traps over nearly four years in the southwest mountains of China revealed that 15 different animal species exhibit varied daily activity patterns, showing more intense competition in colder seasons, likely due to resource scarcity.
  • These findings suggest that seasonal changes, food availability, and interspecies relationships play crucial roles in shaping the activity rhythms of wildlife, highlighting the need for conservation efforts to protect these animals and their resources, especially during winter.
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Revolutionizing microorganism inactivation: Magnetic nanomaterials in sustainable photocatalytic disinfection.

J Environ Manage

November 2024

Center for Advanced Materials (CAM), Qatar University, Doha, 2713, Qatar; Central Laboratories Unit (CLU), Qatar University, Doha, 2713, Qatar. Electronic address:

The rapid emergence of antibiotic-resistant microorganisms and the demand for sustainable water purification methods have spurred research into advanced disinfection, with photocatalysis as a promising approach. This study explores magnetic nanomaterials as catalysts in photocatalytic processes for microorganism inactivation. Magnetic nanoparticles and composites, due to their unique properties, are promising for enhancing photocatalytic disinfection.

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Photomechanical Crystals as Light-Activated Organic Soft Microrobots.

J Am Chem Soc

November 2024

Center for Smart Engineering Materials, New York University Abu Dhabi, PO Box 129188, Abu Dhabi 129188, United Arab Emirates.

Article Synopsis
  • Dynamic molecular crystals are a promising new type of material in energy conversion but have limitations in becoming full-fledged actuators.
  • This study investigates anthracene-based crystals to measure their efficiency in converting light energy into mechanical movement, assessing their potential for applications in soft robotics.
  • The research aims to enhance the development of these materials for use in controllable, all-organic devices in fields like microrobotics, engineering, and biomedicine.
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Article Synopsis
  • Low birth weight (LBW) is a significant global health issue linked not only to maternal health but also to factors like air pollution, which is particularly relevant in Brazil due to its varied environmental conditions.
  • This study aims to investigate the relationship between ambient air pollution and LBW during each trimester of pregnancy in Brazil, utilizing over 10 million birth records from 2001 to 2018 and employing logistic regression models for analysis.
  • Findings show notable associations between air pollution (specifically particulate matter and nitrogen oxides) and increased rates of LBW, especially in the southern and northern regions of Brazil, highlighting the need for further research and public health interventions.
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Article Synopsis
  • * This research utilized machine learning techniques to evaluate various models for assessing how well impurities, particularly CIP, are removed from contaminated water by adsorbents, focusing on performance metrics to gauge the algorithms' effectiveness.
  • * The HistGradientBoosting (HGB) model emerged as the most efficient, achieving a 99.28% CIP adsorption rate under optimal conditions, suggesting that combining advanced ML methods with nano adsorbents can significantly tackle antibiotic pollution in water systems.
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Coral reefs, despite covering less than 0.2 % of the ocean floor, harbor approximately 35 % of all known marine species, making their conservation critical. However, coral bleaching, exacerbated by climate change and phenomena such as El Niño, poses a significant threat to these ecosystems.

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Nutritional quality regulates postnatal wing morph in pea aphids.

J Insect Physiol

December 2024

Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao 266109, China. Electronic address:

Aphids can produce winged or wingless offspring in response to environmental changes. Host nutrition is one of the extensively studied environmental factors influencing the plasticity of wing morphs of aphids. In this study, we found that the pea aphid, Acyrthosiphon pisum, produced a low proportion of winged offspring when fed on plants, but a significantly higher proportion on the artificial diet.

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High lead (Pb) levels in agricultural soil and wastewater threaten ecosystems and organism health. Microbial remediation is a cost-effective, efficient, and eco-friendly alternative to traditional physical or chemical methods for Pb remediation. Previous research indicates that micro-organisms employ various strategies to combat Pb pollution, including biosorption, bioprecipitation, biomineralization, and bioaccumulation.

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Air pollution exposure during pregnancy and preterm birth in Brazil.

Ecotoxicol Environ Saf

October 2024

School of Public Health, Guangzhou Medical University, Guangzhou 511436, China.

Article Synopsis
  • Ambient air pollution is linked to increased risks of preterm birth in pregnant women in Brazil, with a study focusing on different pollutants during each trimester.
  • The research analyzed data from over 9.9 million live births between 2001 and 2018, using logistic regression to find significant associations between exposure to pollutants like PM, NO, and O and preterm birth risk.
  • The findings indicate that even small increases in pollution levels correspond to higher preterm birth rates, suggesting a need for public health measures to address air quality, particularly in regions most affected by pollution.
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Associations of indoor airborne microbiome with lung function: evidence from a randomized, double-blind, crossover study of microbial intervention.

Environ Sci Process Impacts

November 2024

Department of Occupational and Environmental Health Sciences, School of Public Health, Peking University, Beijing 100191, China.

Microorganisms constitute an essential component of the indoor ecosystem and may pose potential health risks after inhalation. However, evidence regarding the impact of indoor airborne microbiome on general respiratory health is scarce. Additionally, while air purification has been shown to be an effective strategy for controlling culturable bioaerosols, its impact on indoor airborne microbiome remains unclear.

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Article Synopsis
  • Scientists are studying how certain common weeds affect crops and soil for better farming practices.
  • They found that different parts of the plant (like roots and leaves) have different effects, with leaves being stronger at suppressing other plants.
  • The study showed that the way these weeds break down in the soil can change depending on the conditions and can help or hurt crop growth, so farmers need to manage weeds carefully.
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Polystyrene microplastics alleviate the developmental toxicity of silver nanoparticles in embryo-larval zebrafish (Danio rerio) at the transcriptomic level.

Sci Total Environ

December 2024

Hubei Provincial Clinical Research Center for Accurate Fetus Malformation Diagnosis, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang 441000, China; Key Laboratory of Zebrafish Modeling and Drug Screening for Human Diseases of Xiangyang City, Department of Obstetrics and Gynaecology, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang 441000, China. Electronic address:

Since silver nanoparticles (AgNPs) and polystyrene microplastics (PS-MP) share common environmental niches, their interactions can modulate their hazard impacts. Herein, we assessed the developmental toxicity of 1 mg/L PS-MP, 0.5 mg/L AgNPs and the mixtures of AgNPs and PS-MP on embryo-larval zebrafish.

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Conventional temperature-based approaches often overlook the intricate nature of thermal stress experienced by individuals. To address this limitation, climatologists have developed thermal indices-composite measures designed to reflect the complex interaction of meteorological factors influencing human perception of temperature. Our study focuses on Brazil, estimating the association between thermal comfort conditions and mortality related to respiratory and circulatory diseases.

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Paenibacillus polymyxa J2-4 induces cucumber to enrich rhizospheric Pseudomonas and contributes to Meloidogyne incognita management under field conditions.

Pest Manag Sci

January 2025

Shandong Engineering Research Center for Environment-Friendly Agricultural Pest Management, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, China.

Background: Root knot nematodes (RKNs) pose a great threat to agricultural production worldwide. The bacterial nematocides have received increasing attention due to their safe and efficient control against RKNs. Here, we investigated the biocontrol efficacy of Paenibacillus polymyxa J2-4 against Meloidogyne incognita in the field and analyzed the rhizosphere microbiome of cucumber under nematode infection after application of the J2-4 strain.

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The contribution of heavy metals in surface soils by the influences of agro-machinery factories is a significant growing concern. Heavy metals were analyzed by inductively coupled plasma mass spectrometry technique to assess human and ecological risks. The concentrations of Fe, Cd, Cr, Cu, As, Pb, Mn, Ni, and Zn in soil ranged from 18,274-22,652, 2.

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Hollow Hydrogels for Excellent Aerial Water Collection and Autonomous Release.

Angew Chem Int Ed Engl

January 2025

School of Chemistry and Molecular Engineering, East China Normal University, 200241, Shanghai, People's Republic of China.

Air moisture is a valuable and omnipresent resource of fresh water. However, traditional water collectors come with an enduring problem of the water-release step, which requires special devices and additional energy to remove the water from the adsorbent, such as heat, sunlight, or both. Herein, we report the first composite conical hollow hydrogel architecture fabricated through a film-to-tube transforming protocol, designed to harvest water from aerial humidity.

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Degradation and preservation of nitrites in whole blood.

Forensic Sci Int

November 2024

Center for Environment and Water Resource, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China. Electronic address:

Understanding the factors that influence nitrite degradation in whole blood and developing methods for its stable preservation are crucial for ensuring accurate and reliable forensic identification in cases of nitrite poisoning. This study systematically monitored nitrite degradation and changes in hemoglobin proportions across different initial nitrite concentrations and blood samples. It was revealed that high nitrite concentrations rapidly reduced deoxyhemoglobin levels within the first 15 minutes and subsequently reacted with oxyhemoglobin at a slower rate.

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We report both cracking and self-healing in crystals occurring during a thermal phase transition, followed by a topochemical polymerization. A squaramide-based monomer was designed where the azide and alkyne units of adjacent molecules are positioned favorably for a topochemical click reaction. The monomer undergoes spontaneous single-crystal-to-single-crystal (SCSC) polymerization at room temperature via regiospecific 1,3-dipolar cycloaddition, yielding the corresponding triazole-linked polymer in a few days.

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Low-Temperature Flexibility of Chiral Organic Crystals with Highly Efficient Second-Harmonic Generation.

Angew Chem Int Ed Engl

September 2024

School of Chemical Engineering and Technology, State Key Laboratory of Chemical Engineering, Tianjin University, Tianjin, 300072, P. R. China.

Article Synopsis
  • Flexible chiral Schiff-base crystals exhibit unique mechanical properties and efficient second harmonic generation (SHG) capabilities, making them promising for applications in optoelectronics and sensors.
  • These crystals retain their flexibility at both room temperature and 77 K, with enantiomers generating SHG intensities up to 12 times that of standard potassium dihydrogenphosphate (KDP).
  • The study highlights the first instance of low-temperature-resistant flexible organic single-crystalline materials with nonlinear optical properties, paving the way for innovative advancements in mechanically flexible NLO materials.
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