Results 61 to 70 of about 310,032 (319)

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

open access: yesAdvanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Chronic exposure to environmental concentrations of 6PPDQ induces neurotoxicity via perturbing multiple neurotransmission pathways in zebrafish

open access: yesEnvironment International
Previous research has demonstrated acute toxicity of 6PPD-quinone (6PPDQ), the ozonation product of tire-manufacturing additive 6PPD; however, chronic effects on aquatic organisms under real-world conditions remain unclear.
Chuan Yi   +7 more
doaj   +1 more source

Health risk assessment of heavy metals in groundwater of coal mining area: A case study in Dingji coal mine, Huainan coalfield, China

open access: yes, 2016
Heavy metals enrichment in groundwater poses great ecological risks to human beings. In the present research work, a total of 59 groundwater samples from 12 sampling points in Dingji coal mine, Huainan coalfield, were collected and measured for Cu, Pb ...
Zhang, Shizhen   +3 more
core   +1 more source

Biodegradable Chitosan Films as Green Resists for Gold Nanowires Fabrication Through AFM‐Based Nanolithography

open access: yesAdvanced Materials Interfaces, EarlyView.
Schematic illustration of a sustainable nanofabrication process: chitosan derived from natural sources is used as a biodegradable thin film resist, patterned via Constant Pulse‐Assisted Force Lithography (CP‐AFL) to create tunable nanogrooves. These grooves template gold nanowire formation, enabling high‐resolution nanopatterning under ambient ...
Paolo Pellegrino   +7 more
wiley   +1 more source

Franchise Risk Ecology: A Risk Ecology for Analyzing, Mitigating, and Pricing Franchisee-contracted Risks

open access: yes, 2020
Abstract Franchising manifests a bundle of risks created by the delegation of functions as both franchisor and franchisee exploit their respective comparative advantage. The galvanization of this advantage is governed by the franchise agreement and optimized by the effectiveness of the governance structure.
Roussety, Maurice   +3 more
openaire   +2 more sources

Assessment of potential ecological risk for polycyclic aromatic hydrocarbons in urban soils with high level of atmospheric particulate matter concentration

open access: yesEcotoxicology and Environmental Safety
Polycyclic aromatic hydrocarbons (PAHs) are known to be representative carcinogenic environmental pollutants with high toxicity. However, information on the potential ecological and environmental risks of PAH contamination in soil remains scarce.
Hi Gyu Moon   +10 more
doaj   +1 more source

Turning Water Into a Tool: From Degradation Pathways to Functional Engineering in Halide Perovskites

open access: yesAdvanced Materials Technologies, EarlyView.
Water exhibits a threshold‐dependent dual role in lead halide perovskites, acting either as a degradation trigger or as a powerful tool for defect passivation, recrystallization, and structural engineering. This review discusses how controlled water‐mediated interactions govern stability, dimensionality, and optoelectronic performance, providing ...
Raphaella T. S. Gonçalves   +4 more
wiley   +1 more source

The progress and spatiotemporal heterogeneity evaluation of China's ecological civilization

open access: yesEcological Indicators
The evaluation of ecological civilization has emerged as a significant research trend in recent years, as ecological civilization construction has been incorporated into the national “five-in-one” strategic layout in China. To understand the operation of
Danyang Feng   +5 more
doaj   +1 more source

A mixed model approach to modelling global habitat suitability and invasion risk of the American bullfrog [PDF]

open access: yes, 2018
American bullfrogs (Lithobates catesbeianus), which are native to the eastern United States, have been widely introduced to other parts of the world through food and pet trade. These include parts of North, Central, and South America, Western Europe, and
Jang, Yikweon, Andersen, Desiree
core   +1 more source

Soft Robotic Snake with Tunable Undulatory Gait for Efficient Underwater Locomotion

open access: yesAdvanced Robotics Research, EarlyView.
This study designs an underwater soft snake robot using 3D‐printed soft actuators, controlled by specific signals to generate sinusoidal undulation. Results show a positive correlation between speed and swing amplitude, with optimal performance at 2/3π phase offset, PLA tail, 1.2 voltage growth rate, and 6s undulation period achieving a maximum speed ...
Huichen Ma, Junjie Zhou, Raye Yeow
wiley   +1 more source

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