Results 61 to 70 of about 53,165 (288)

II. Transformation of aniline into toluidine [PDF]

Proceedings of the Royal Society of London, 1873
Whilst engaged with the experiments described in the previous paper, I have made some observations which I may be allowed briefly to mention to the Society, since the coming autumnal vacation will suspend work for a time. In reviewing the experience collected as to the action of high temperatures upon trimethylated phenylammonium iodide, the question ...
openaire   +2 more sources

Endogenously Triggered DNAzyme‐Based Nanostructures for Gene‐Combined Therapy

Advanced NanoBiomed Research, EarlyView.
DNAzymes show great promise for gene regulation and therapeutic use via controlled release triggered by endogenous factors. This review summarizes recent advances in designing and constructing nanoscale platforms enabling endogenously triggered release of DNAzyme.
Theoneste Muyizere, Julien Milon Essola, Eric Nyirimigabo, Janvier Mukiza, Jean Felix Mukerabigwi   +4 more
wiley   +1 more source

Imprint cytology: a useful screening test for diagnosis of Helicobacter pylori in resource poor settings

BMC Research Notes, 2018
Objective The study aimed to compare the usefulness of two staining methods for imprint cytology for diagnosis of Helicobacter pylori infection. Gastric biopsy specimens (from dyspeptic patients attending routine upper gastrointestinal endoscopy) were ...
Piyumali Sandareka Arachchi, Manjula Manoji Weerasekera, Bimalka Seneviratne, Deepaka Weerasekera, Neluka Fernando, Chinthika Prabhashinie Gunasekara   +5 more
doaj   +1 more source

Reconstructing the historical synthesis of mauveine from Perkin and Caro: procedure and details

Scientific Reports, 2017
Mauveine, an iconic dye, first synthesised in 1856 still has secrets to unveil. If nowadays one wanted to prepare the original Perkin’s mauveine, what would be the procedure?
Tânia F. G. G. Cova, Alberto A. C. C. Pais, J. Sérgio Seixas de Melo   +2 more
doaj   +1 more source

Synthesis of New Azo Compounds Based on N-(4-Hydroxypheneyl)maleimide and N-(4-Methylpheneyl)maleimide

Molecules, 2010
Maleic anhydride was reacted with p-aminophenol and p-toluidine in the presence of di-phosphorus pentoxide (P2O5) as a catalyst to produce two compounds: N-(4-hydroxy-phenyl)maleimide (I) and N-(4-methylphenyl)maleimide (II). The new azo compounds I(a-c)
Issam Ahmed Mohammed, Asniza Mustapha
doaj   +1 more source

The Influence of Polymerization Condition to Optical Properties of Poly-o-toludine Films for PH Sensor Application

Makara Seri Sains, 2006
Properties of poly-o-toludine film strongly bonded to non polar substrate was studied for application as optical pH sensor. Characterization of film in various pH value is carried out by recording absorbance curve using uv-visible spectrophotometer.
Yanti Sabarinah, Endang Asijati W.
doaj  

Histodynamics of Natural Killer Cells from a Healthy Donor Exposed to Exosomes from the Blood of Hepatocellular Carcinoma Patients

Makara Journal of Health Research
Background: Hepatocellular carcinoma (HCC) is the leading form of liver cancer and the second leading cause of cancer-related deaths globally. Exosomes in the HCC microenvironment can induce significant changes in natural killer (NK) cells during ...
Indria Asrinda, Radiana Dhewayani Antarianto, Ahmad Aulia Jusuf, Ardhi Rahman Ahani, Chyntia Olivia Maurine Jasirwan, Ni Ken Ritchie, Robby Nur Aditya, Cosphiadi Irawan   +7 more
doaj   +1 more source

N-(Pyrazin-2-yl)-4-toluidine

Acta Crystallographica Section E, 2008
The two aromatic systems in the title compound, C11H11N3, are inclined by 19.1 (1)°, whilst the angle at the central amino N atom is 130.3 (2)°. The amino group forms a hydrogen bond to the pyrazine N-4 atom of an adjacent molecule,
Seik Weng Ng, Zanariah Abdullah, Zaharah Aiyub, Azila Idris, Wan Ainna Mardhiah Wan Saffiee   +4 more
doaj   +1 more source

FECAL OCCULT BLOOD: A COMPARISON OF CHEMICAL AND IMMUNOCHEMICAL TESTS

Arquivos de Gastroenterologia
BACKGROUND: Colorectal bleeding is a warning sign that may be identified by fecal occult blood testing. A positive fecal occult blood test result requires a subsequent colonoscopy, a costly and invasive examination.
Luana Vilarinho BORGES, Rejane MATTAR, Joyce Matie Kinoshita da SILVA, Ana Luiza Werneck da SILVA, Flair José CARRILHO, Cláudio Lyoiti HASHIMOTO   +5 more
doaj   +1 more source

Adsorption of Aromatic Compounds from Aqueous Solution by a Hypercrosslinked Polymeric Adsorbent with Sulphonic Groups

Adsorption Science & Technology, 2003
A hypercrosslinked polymeric adsorbent with sulphonic groups, NG-5, was employed to remove p -toluidine, p -aminophenol and phenol from aqueous solutions and its performance and thermodynamic behaviour compared to that of the hypercrosslinked polymeric ...
Hai-Ling Wang, Jin-Long Chen, Ai-Min Li, Zhi-Cai Zhai, Zheng-Hao Fei, Quan-Xing Zhang   +5 more
doaj   +1 more source