Results 91 to 100 of about 171,533 (278)

Simultaneous spectrophotometric determination of phenolic antioxidant (BHA and BHT) concentrations in pharmaceutical preparations and chewing gums using the H-point standard addition method

Macedonian Journal of Chemistry and Chemical Engineering, 2017
A simple, rapid, and sensitive spectrophotometric method was developed for the simultaneous determination of butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) concentration in pharmaceutical preparations and chewing gums, without prior ...
Mahmure Özgür, Zeynep Kalaycioğlu, Öznur Dülger   +2 more
doaj   +1 more source

Natural Product Toosendanin Suppresses the Malignant Development of Skin Melanoma by Targeting BNC2 for Degradation

Advanced Science, EarlyView.
BNC2 exhibits context‐dependent opposing functions across multiple cancer types. This study reveals BNC2 as an oncogenic driver of melanoma proliferation and metastasis through transcriptional activation of PIK3CA. The natural compound TSN simultaneously degrades BNC2 and its oncogenic partner SMAD3 via CRBN‐dependent ubiquitination.
Hui Dai, Xin Mei Zhang, Jing Cheng Zhang, Xu Ting Deng, Qiao Liu, Mustafa Hussein Ali, Fang Zhou Yin, Wu Yin   +7 more
wiley   +1 more source

Spectrophotometric investigation of the Fe(III)–disulphonated hydroquinone complex [PDF]

Journal of the Serbian Chemical Society, 2005
Iron(III) form an indigo-blue complex with the disulphonated product of hydroquinone (K2S2Hy) in acid media with an absorption maxima at 600 nm.
M. V. OBRADOVIC, S. S. MITIC, S. B. TOSIC, A. N. PAVLOVIC   +3 more
doaj  

Determination of Silica in Geological Samples by Silicon-Molybdenum Blue Spectrophotometry Using High-pressure Acid Digestion

Yankuang ceshi, 2019
BACKGROUND Polymerized silicic acid cannot be quantitatively complexed with molybdate in geological sample, therefore the silicon is determined by silicon-molybdenum blue colorimetric spectrophotometry.
DONG Xue-lin, HE Hai-yang, CHU Qin, SONG Zhou   +3 more
doaj   +1 more source

Polydopamine‐Wool Textiles for Sustainable Interfacial Solar Vapor Generation

Advanced Science, EarlyView.
A natural wool textile engineered for high solar absorbance and a fast‐wicking structure serves as a highly efficient, single‐layer system for interfacial solar vapor generation (ISVG). This integrated evaporator seamlessly couples rapid water transport with continuous evaporation. Ultimately, this sustainable photothermal design offers a scalable, eco‐
Kyuin Park, Jintong Gao, Hansadi Jayamaha, Yipu Wang, Mia Bressler, Lenan Zhang, Larissa M. Shepherd   +6 more
wiley   +1 more source

AKTIVITAS URIKASE YANG DIHASILKAN DARI BERBAGAI SEL LACTOBACILLUS PLANTARUM DAN PARAMETER KINETIKANYA

Jurnal Ilmu Pertanian Indonesia, 2009
Uric acid concentration could be determined by spectrophotometry method. Uric acid was oxidized into allatonin in the presence of uricase and calculated by measuring the decrease of uric acid absorbance at 293 nm.
Dyah Iswantini, Novik Nurhidayat, Trivadila, Eka Mardiah   +3 more
doaj  

Layer‐Specific Dermal and Subcutaneous Delivery via Modular LNP–Hydrogel‐Integrated Threaded Microneedles

Advanced Science, EarlyView.
Guided by spatial transcriptomics and clinical validation, a threaded microneedle platform enables precise layer‐specific delivery across the dermis and subcutaneous tissue. By addressing distinct pathogenic remodeling in different skin layers, this strategy coordinates compartment‐specific intervention, restores tissue architecture, and offers a ...
Fangzhou Xie, Yixiang Zhang, Shifeng Ling, Yuxuan Huang, Yingying Wei, Rao Fu, Jiahao He, Baikun Liu, Lucia Zhou, Kaifeng Huo, Yida Wang, Qingfeng Li, Yawei Du, Wenguo Cui, Yun Xie   +14 more
wiley   +1 more source

Incorporation of cholesterol in sphingomyelin- phosphatidylcholine vesicles has profound effects on detergent-induced phase transitions

Journal of Lipid Research, 2002
Vesicle ↔ micelle transitions are important phenomena during bile formation and intestinal lipid processing. The hepatocyte canalicular membrane outer leaflet contains appreciable amounts of phosphatidylcholine (PC) and sphingomyelin (SM), and both ...
Antonio Moschetta, Peter M. Frederik, Piero Portincasa, Gerard P. van Berge-Henegouwen, Karel J. van Erpecum   +4 more
doaj   +1 more source

Interfacial Tandem Catalysis Over a CuSn(OH)6/Co Heterostructure Enables Efficient Electroreduction of Nitrate to Ammonia

Advanced Science, EarlyView.
Interfacial tandem catalysis is developed for efficient electrochemical reduction of NO3− to NH3 over a CuSn(OH)6/Co heterostructure. CuSn(OH)6 accelerates the rate‐determining NO3−‐to‐*NO2 conversion, whereas Co promotes H2O dissociation to enhance *H supply for the rapid hydrogenation of *NO2 intermediate to NH3.
Yuan‐Yuan Hei, Qing Chen, Jie Gu, Yifan Leng, Yaping Huang, Sunhui Chen, Hong Sun, Hongfang Du   +7 more
wiley   +1 more source

Performance of the RDT against reference spectrophotometry.

Performance of the RDT against reference spectrophotometry.
Lydia V. Panggalo (17817403), Arkasha Sadhewa (699631), Ari W. Satyagraha (18469054), Ric N. Price (7464974), Illene Nanine (18469051), Kamala Thriemer (148725), Benedikt Ley (148722)   +6 more
core   +1 more source