Results 71 to 80 of about 4,145 (241)

Biomass burning and urban air pollution over the Central Mexican Plateau [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
Observations during the 2006 dry season of highly elevated concentrations of cyanides in the atmosphere above Mexico City (MC) and the surrounding plains demonstrate that biomass burning (BB) significantly impacted air quality in the region.
P. O. Wennberg   +11 more
doaj  

Biomimetic Nanoplatform for Dual Target Nano‐Metabolic Therapy in Diabetes‐Associated Biofilm Infections

open access: yesAdvanced Science, EarlyView.
A biomimetic GOx/Arg‐loaded nanoplatform produces nitric oxide through an in situ catalytic cascade reaction, enabling dual‐target metabolic regulation in diabetes‐associated biofilm infections. Bacterial metabolism is disrupted, and macrophage immunometabolism is reprogrammed, resulting in biofilm eradication, immune restoration, and enhanced ...
Mingzhang Li   +13 more
wiley   +1 more source

Poly (vinylpyrrolidone)-Grafted Silica as a Polymeric Cosolvent Catalyst for Organic Transformations in Organic and Aqueous Media [PDF]

open access: yesJournal of Sciences, Islamic Republic of Iran, 2015
Poly (vinylpyrrolidone)-grafted silica as an organic-inorganic hybrid material was used as an effective heterogeneous polymeric cosolvent catalyst in organic reactions.
S. Ghasemi   +3 more
doaj  

Hydrogen Cyanide Formation on the Analysis of Total Cyanide and Free Cyanide and Improvements of Pretreatment Method of Total Cyanide

open access: yesBUNSEKI KAGAKU, 2009
シアン化合物は有毒物質であることから,環境及び排水中の全シアンは厳しく規制されている.環境及び排水中の全シアンの分析は,工場排水試験方法(JIS K 0102)に基づいて行われているが,この方法で分析したとき,シアン化合物を使用していない工場及び事業所の排水や廃棄物から全シアンが検出される事例が多数報告されている.本稿では,著者らが既に報告したプリント基板めっき工場,ノーシアン亜鉛めっき工場,カラー写真処理廃液,現像所排水,熱硬化性塗料,アルミニウム合金溶融廃棄物からのシアン化水素(HCN)生成事例と,最近明らかになったアルカリ固定による室温でのシアン化物イオン生成,重油燃焼排ガス洗浄液及び石炭火力発電所排水からのHCN生成事例を紹介し,その生成原因について述べた.また ...
openaire   +2 more sources

Eco‐Friendly Solvent System for Inkjet Deposition of Wide Bandgap Perovskite Solar Cells Enabling Tandem Integration

open access: yesAdvanced Science, EarlyView.
The fabrication of wide‐bandgap perovskite thin films via green solvents integrated with inkjet printing is developed. Controlled crystallization of the perovskite layer is achieved by optimizing ink formulation and additive engineering, enabling power conversion efficiencies above 17% for single junctions and 28% for perovskite/silicon tandem solar ...
Uma Kousalya Dangudubiyyam   +12 more
wiley   +1 more source

LRRC4 Orchestrates AP2A1‐Containing Clathrin‐Coated Vesicles to Disrupt Mitochondrial Cristae and Restrict Glioblastoma Progression

open access: yesAdvanced Science, EarlyView.
LRRC4 suppresses GBM by regulating AP2A1‐containing Golgi‐derived clathrin‐coated vesicles. Low LRRC4 allows cytoplasmic AP2A1 to maintain mitochondrial fission‐fusion, MICOS integrity, and OXPHOS, promoting proliferation and invasion. High LRRC4 redirects AP2A1‐containing Golgi‐derived clathrin‐coated vesicles to mitochondria, disrupts MICOS, enhances
Yang Li   +5 more
wiley   +1 more source

Flanking‐Group Engineering Unlocks Emerging Functionalities in Diketopyrrolopyrrole Semiconductors

open access: yesAdvanced Science, EarlyView.
This review presents a comprehensive and unified perspective of flanking‐group engineering in Diketopyrrolopyrrole (DPP) based organic semiconductors that connects molecular‐level design with cross‐device functionalities. By integrating insights from molecular design, solid‐state packing, and device physics, this review seeks to establish general ...
Xiaoyun Wu   +5 more
wiley   +1 more source

Polarization Engineering in Vinylene‐Linked COFs Toward Efficient Neuromorphic Computing

open access: yesAdvanced Science, EarlyView.
A vinyl‐linked covalent organic framework (COF‐DIBPY) was synthesized on a conductive substrate for memristor applications. Redox reactions and bromide migration enable low‐voltage (0.5V) conductance switching with high analog on/off ratio (15.7). The device was further integrated into a speech emotion recognition system for acoustic simulation and ...
Hao Wang   +5 more
wiley   +1 more source

Measuring the impact on impedance spectroscopy of pseudo-reference electrode accumulations

open access: yesElectrochemistry Communications, 2019
Silver is widely used on screen-printed electrodes (SPEs) to provide a reference potential for electrochemical measurements such as impedance spectroscopy (EIS).
M.A. Sawhney   +5 more
doaj   +1 more source

Synchronized Imaging of Hydrogen Peroxide and Hydroxyl Radical in Pyroptosis and Epilepsy

open access: yesAdvanced Science, EarlyView.
A dual‐responsive fluorescent probe, HH, enables synchronized visualization of H2O2 and •OH through spectrally resolved green and red channels. By tracking redox dynamics in pyroptosis and epilepsy models, HH reveals ROS elevation during seizure‐like pathology and supports evaluation of antioxidant and antiepileptic therapeutic interventions.
Yabing Gan   +9 more
wiley   +1 more source

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