Results 61 to 70 of about 79,511 (259)

Determinación de nitrógeno amoniacal y total en aguas de consumo y residuales por el método del fenato Determination of ammoniacal and total nitrogen in drinking water and sewage by the phenate method

Revista Cubana de Higiene y Epidemiología, 2004
En este trabajo se presentan los resultados de la determinación de nitrógeno amoniacal y total por el método del fenato en aguas, con el propósito de evaluar los indicadores de calidad aplicados para la validación de métodos de ensayos en el laboratorio ...
Olivia Sardiñas Peña, Adisbel Pérez Cabrera   +1 more
doaj  

Self‐Sustaining Lactate Depletion Nanoplatform Remodels Tumor Microenvironment and Augments Synergistic Photodynamic/Photothermal/Chemodynamic/Starvation Therapy for Eradication of Colon Cancer

Advanced Science, EarlyView.
The HILA nanoplatform integrates HMnO2, LOX, and ICG to orchestrate multimodal therapy (starvation, chemodynamic, photodynamic, and photothermal) for achieving efficient colon cancer eradication. The established HMnO2‐LOX catalytic cycle continuously consumes lactate, acidifys microenvironment, relieves hypoxia, and generats reactive oxygen species ...
Yu‐E. Wang, Shibo Zhao, Wenying Wu, Zhiwei Duan, Yuan Li, Xiangyu Zeng, Liang Hong, Yan Chen, Ling Tao, Kewu Zeng, Chaoda Xiao, Xiangchun Shen   +11 more
wiley   +1 more source

Cerium Nanoparticle‐Mediated Inhibition of the NSUN2/m5C Axis Suppresses Synovial Aggression in Rheumatoid Arthritis

Advanced Science, EarlyView.
A novel epitranscriptomic mechanism in rheumatoid arthritis is uncovered: NSUN2 promotes disease via m5C‐dependent stabilization of ICMT mRNA, fueling the migration and invasion of pathogenic RA FLS. Targeting this axis with engineered nanoparticles (Ce/SAA NPs) effectively inhibits disease progression, presenting a precise therapeutic strategy ...
Ruiru Li, Simin Chen, Huijuan Hu, Shiyao Wu, Jingnan Wang, Kai Sun, Chenxi Peng, Suling Liu, Shuoyang Zhang, Yu Kuang, Wei Chen, Qian Qiu, Liuqin Liang, Yu Wen, Hanshi Xu, Youjun Xiao   +15 more
wiley   +1 more source

A Bright Ratiometric Dipyrene Probe for Functional Imaging of Condensate Microenvironments in Living Cells

Advanced Science, EarlyView.
Ratiometric dipyrene imaging resolves monomer (M) and excimer (E) channels and computes pixel‐wise E/M maps within biomolecular condensates, yielding physicochemical fingerprints shaped by coupled polarity‐related solvation and microviscosity. These spatial fingerprints enable quantitative phenotyping of cellular states, exemplified by separation of ...
Koki Matsumoto, Sora Kitai, Yoshio Nishiyama, Shogo Amemori, Kei Makiyama, Dini Kurnia Ikliptikawati, Kentaro Ohira, Yuta Kozuka, Maho Tobita, Shih‐Cheng Chen, Chien‐Hung Yu, Wei‐Min Liu, De‐Chen Lin, Motohiro Mizuno, Kazuma Ogawa, Koichi Ogami, Kenji Takahashi, Hiroshi I. Suzuki, Richard W. Wong, Takahiro Soeta, Masaharu Hazawa   +20 more
wiley   +1 more source

Optimized Lipid Nanoparticles with Tail‐Modified Ionizable Lipids for Safer mRNA Delivery

Advanced Science, EarlyView.
Systematic engineering of hydrophobic tail architecture in vitamin B5‐derived ionizable lipids establishes a comprehensive structure–activity relationship framework for mRNA delivery. Combined lipidtail and formulation optimization identifies TM1‐OPT3‐C, a lipid nanoparticle platform that improves efficacy–safety balance through efficient mRNA delivery,
Seo‐Hyeon Bae, Jisun Lee, Jae‐Hun Ahn, Hosam Choi, Huijeong Choi, Jungmin Kim, Minho Kang, Ho Rim Oh, So Hyun Park, Eun Young Oh, Sanghyuk Jeon, Yeeun Lee, Yu‐Sun Lee, Na‐Young Lee, Hee‐Jin Bae, Jina Kwak, Jooil Kim, Nakyung Lee, Beomsun Kang, Ji‐Hye Kim, Eunsaem Song, Daesub Song, Hyunho Yoon, Sang‐Myeong Lee, Hyewon Youn, Kiyoun Lee, Byeong‐Cheol Kang, Jae‐Hwan Nam   +27 more
wiley   +1 more source

Sensitive and Selective Chromatographic Method to Determine Vanadium in Commercial Phosphoric Acid

Biology, Medicine & Natural Product Chemistry
The spectrophotometric method adopting N-Benzoyl-N-phenylhydroxylamine was exechted for ascertaining vanadium in environmental samples. high performance liquid chromatography (HPLC) system equipped with a C18 RP column was used to determine vanadium in ...
Hassan Pyar, Abdul Rahman Wahoud
doaj   +1 more source

Metal‐Half‐Salen Chemistry for One‐Pot Mineralization on Hydrophobic Polymer Membranes

Advanced Science, EarlyView.
Here we report a versatile one‐pot synthetic strategy for organic–inorganic composite membranes, which leverages a metal half‐Salen system to precisely govern the competing kinetics of coordination and hydrolysis. In contrast to conventional two‐step metal‐phenol chemistries, our integrated approach substantially simplifies the fabrication process ...
Rou‐Ming Wen, Hao Ye, Ming‐Bang Wu, Lu‐Lin Ma, Qi‐Hui Ye, Zi‐Hao Yuan, Yi Xie, Juming Yao, Hao‐Cheng Yang   +8 more
wiley   +1 more source

Rocket‐Inspired Sequentially Targeted Nanotherapeutics for Mitochondrial Regulation and Inflammatory Reprogramming in Ischemic Stroke

Advanced Science, EarlyView.
A novel neutrophil‐hitchhiking, rocket‐inspired nanoplatform is developed to cross the blood‐brain barrier for sequential, spatiotemporal drug delivery. By responsive surface transformation in the ischemic penumbra, it precisely targets mitochondria to suppress Drp1‐mediated fission.
He Bai, Zihao Yong, Yang Li, Qingmin Chen, Yong Liu, Xiaomeng Guo, Fukai Li, Shicheng Tang, Zhuo Yang, Yufei Zhang, Ruwei Jie, Xiaohong Lv, Huacheng Wang, Chunming Huang, Liwei Xie, Jianqi Xiao, Qingchun Mu, Longguang Tang   +17 more
wiley   +1 more source

Endothelial YAP Signaling Promotes Blood‐Spinal Cord Barrier Repair in Mice After Spinal Cord Injury

Advanced Science, EarlyView.
Endothelial YAP is required for blood‐spinal cord barrier repair after spinal cord injury. YAP‐dependent vascular repair is associated with ANGPT1/PI3K/AKT signaling in vivo and may involve endothelial‐pericyte paracrine interactions. By supporting vascular remodeling, tight junction restoration, restored pericyte coverage, and astrocyte‐vascular ...
Jiawei Wang, Yaozhi He, Yanjiao Wang, Jingjing Zhang, Qishun Liang, Mengxian Jia, Yumin Wu, Zongjie Yuan, Ziwei Fan, Yuxuan Li, Huihui Zhang, Qinjiao Fu, Ying Wang, Zhihui Huang, Honglin Teng   +14 more
wiley   +1 more source

Paraborg: Paramedic Cyborg Insects for In Situ Emergency Drug‐Delivery

Advanced Science, EarlyView.
This work introduces Paraborg, a human‐supervised paramedic cyborg‐insect platform that combines controllable locomotion, onboard imaging, and an auto‐injection mechanism for in situ drug‐delivery. By demonstrating reliable navigation, target stabilization, injector launch, and multi‐insect teamwork, the study extends cyborg insects from survivor ...
H. Nhan Le, P. Thien Phan, Lachlan Fitzgerald, P. Ross McAree, T. Nho Do, T. Thang Vo‐Doan   +5 more
wiley   +1 more source