Results 51 to 60 of about 508,588 (281)

Validation of a simple and rapid UV spectrophotometric method for dexamethasone assay in tablets

Química Nova, 2009
This work reports the validation of an analytical UV spectrophotometric method to assay dexamethasone in tablets (assay and dissolution studies). The method was linear in the range between 1 and 30 µg mL-1 presenting a good correlation coefficient (r = 0.
Rossana Barcellos Friedrich, Aline Ravanello, Luiz Carlos Cichota, Clarice Madalena Bueno Rolim, Ruy Carlos Ruver Beck   +4 more
doaj   +1 more source

Simultaneous Wastewater‐to‐Hydrogen Upgrading via Mechanically Driven Piezocatalysis Over Ag‐ZnO Nanorods

Advanced Science, EarlyView.
A piezocatalytic strategy enables simultaneous wastewater purification and hydrogen generation by harnessing mechanical energy. Complementary piezo‐induced charges are selectively directed toward oxidation and reduction pathways, achieving efficient pollutant degradation and continuous H2 evolution.
Yiqing Wei, Jianghai Huang, Yejunchi Zhang, Yang Wang, Dongmei Li, Chaogang Ban, Peng Yu, Jiangping Ma, Zhenxiang Cheng   +8 more
wiley   +1 more source

Aptamer‐Directed Porous DNA Nanocomposite Hydrogel for Active Pulp Preservation: Immunomodulation, Stem Cell Recruitment and Reparative Dentinogenesis

Advanced Science, EarlyView.
This study presents an injectable DNA‐based porous hydrogel integrating catechol motifs and targeting aptamers for pulpitis management. Upon in situ crosslinking, the scaffold actively recruits endogenous dental pulp stem cells, restores redox homeostasis, and modulates immune responses.
Luhui Cai, Huan Yu, Zihan Ni, Kan Chen, I‐Chen Tsai, Zeyu Bao, Shuo Sun, Weichang Li, Yunhua Chen, Qiong Xu   +9 more
wiley   +1 more source

Spectrophotometry for cerebrospinal fluid pigment analysis

, 2006
The use of spectrophotometry for the analysis of the cerebrospinal fluid (CSF) is reviewed. The clinically relevant CSF pigments--oxyhemoglobin and bilirubin--are introduced and discussed with regard to clinical differential diagnosis and potentially ...
Sharpe, L.T., Petzold, A., Keir, G.
core  

ultraviolet-visible spectrophotometry (UV-VIS) (3-[(E)-2-(3-octoxyquinoxalin-2-yl)ethenyl]-6,7-diphenylquinoxaline-2-carbaldehyde)

, 2022
dataset for ultraviolet-visible spectrophotometry (UV-VIS) UV-VIS (absorption, CH2Cl2), λmax = 400, 336, 290 ...
Klein, Jérôme
core   +1 more source

Lighting up Macrophage Reprogramming Assists Immunosuppressive Niche Modulation in Primary Tumors and Tumor‐Draining Lymph Nodes of Breast Cancer

Advanced Science, EarlyView.
This study develops an intelligent NIR‐II‐responsive nanoplatform to combat immunosuppression in breast cancer. It enables real‐time visualization of macrophage activity via “off‐on” fluorescence while simultaneously reprogramming macrophages through the CSF‐1R and CD47‐SIRPα pathways.
Yingbo Li, Di Chang, Jie Yang, Ying Bai, Min Chen, Daoshuang Li, Zuoyu Xu, Jiaxin Yuan, Xiaoxuan Xu, Zhiqi Zhang, Yize Li, Zixin Chen, Jinbing Xie, Zebin Xiao, Shenghong Ju   +14 more
wiley   +1 more source

A Microgel Platform Enables Site‐Specific Intestinal Delivery of Lactoferrin, Improving its Bioavailability for Targeted Alleviating Liver Injury and Colitis

Advanced Science, EarlyView.
This work first time reports an eco‐friendly desert plant food‐based polysaccharide ASKP microgels which have intestinal site‐specific release properties which can achieve small‐intestine or colon targeting capability via different cross‐linking chemistry.
Huiling Yan, Yixuan Li, Shanan Chen, Pengcheng Du, Kaiwen Wu, Hui Zhang, Kasper Hettinga, Lina Zhang, Gergely Toldi, Fazheng Ren, Yuan Li   +10 more
wiley   +1 more source

Regulation of nucleotide excision repair by UV-DDB: prioritization of damage recognition to internucleosomal DNA [PDF]

, 2011
How tightly packed chromatin is thoroughly inspected for DNA damage is one of the fundamental unanswered questions in biology. In particular, the effective excision of carcinogenic lesions caused by the ultraviolet (UV) radiation of sunlight depends on ...
Naegeli, H, Nina Kaczmarek, Andreas Glas, Glas, Andreas, Carell Thomas, Glas, A, Carell, Thomas, Fei Jia, Kaczmarek Nina, Glas Andreas, Jia Fei, Carell, T, Andreas Luch, Naegeli Hanspeter, Fei, Jia, Naegeli, Hanspeter, Luch Andreas, Kaczmarek, Nina, Thomas Carell, Hanspeter Naegeli, Luch, A, Luch, Andreas, Fei, J, Kaczmarek, N   +23 more
core   +1 more source

Understanding the Catalytic Determinant role of Diaphorase‐Like Subunit in Formate Dehydrogenases via Redox Couples

Advanced Science, EarlyView.
A unique mechanism of catalytic bias regulated by diaphorase‐like subunit in formate dehydrogenase from Rhodobacter aestuarii is revealed. The diaphorase‐like subunit functions act as a biological “voltage rheostat” that controls the slow release of NADH to regulate redox balance, biasing the enzyme's catalytic preference toward CO2 reduction over ...
Kuncheng Zhang, Weisong Liu, Hao Su, Huijuan Cui, Yuanming Wang, Zhiguang Zhu, Chun You, Lingling Zhang   +7 more
wiley   +1 more source

Determinação de olanzapina em formulações farmacêuticas por espectrofotometria: desenvolvimento e validação Spectrophotometric olanzapine determination in pharmaceutical formulations: method development and validation

Química Nova, 2010
Spectrophotometric methods of zero order, first and second derived order had been developed for olanzapine determination in tablets using ethanol and isopropanol as solvent. The two solvents revealed to be adequate.
Jardes Figuerêdo do Rêgo, Jacira Izidório de Moura, Graziella Ciaramella Moita   +2 more
doaj   +1 more source