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Showing 1 to 12 of 1092 entries
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Effect of reaction parameters on the formation and properties of ZnO nanocrystals synthesized via a rapid solochemical processing.

Journal of nanoscience and nanotechnology

Gusatti M, Campos CE, Souza DA, Moser VM, Kuhnen NC, Riella HG.
PMID: 24266228
J Nanosci Nanotechnol. 2013 Dec;13(12):8307-14. doi: 10.1166/jnn.2013.7924.

ZnO nanocrystals were successfully prepared under mild conditions by solochemical method from sodium hydroxide and zinc nitrate hexahydrate in 3 h refluxing. In this process the dependence of the morphologies, sizes and formation mechanisms of the ZnO nanocrystals on...

Antioxidant and Cytotoxic Effect of Barringtonia racemosa and Hibiscus sabdariffa Fruit Extracts in MCF-7 Human Breast Cancer Cell Line.

Pharmacognosy research

Amran N, Rani AN, Mahmud R, Yin KB.
PMID: 26941539
Pharmacognosy Res. 2016 Jan-Mar;8(1):66-70. doi: 10.4103/0974-8490.171104.

BACKGROUND: The fruits of Barringtonia racemosa and Hibiscus sabdariffa have been used in the treatment of abscess, ulcer, cough, asthma, and diarrhea as traditional remedy.OBJECTIVE: This study aims to evaluate cytotoxic effect of B. racemosa and H. sabdariffa methanol...

Alkali burn treated with 2% rebamipide ophthalmic suspension: a case report.

Case reports in ophthalmology

Sasaki H, Kokubun T.
PMID: 25762927
Case Rep Ophthalmol. 2014 Nov 20;5(3):380-5. doi: 10.1159/000369201. eCollection 2014.

A 47-year-old man presented at the Ophthalmology Department of Saku City Asama General Hospital complaining of hyperemia and pain after industrial sodium hydroxide (approx. 40% concentration) had entered his left eye. With an epithelial defect of the bulbar and...

Thermal Resistance Variations of Fly Ash Geopolymers: Foaming Responses.

Scientific reports

Cheng-Yong H, Yun-Ming L, Abdullah MM, Hussin K.
PMID: 28345643
Sci Rep. 2017 Mar 27;7:45355. doi: 10.1038/srep45355.

This paper presents a comparative study of the characteristic of unfoamed and foamed geopolymers after exposure to elevated temperatures (200-800 °C). Unfoamed geopolymers were produced with Class F fly ash and sodium hydroxide and liquid sodium silicate. Porous geopolymers...

Fly ash/Kaolin based geopolymer green concretes and their mechanical properties.

Data in brief

Okoye FN, Durgaprasad J, Singh NB.
PMID: 26693505
Data Brief. 2015 Nov 07;5:739-44. doi: 10.1016/j.dib.2015.10.029. eCollection 2015 Dec.

Geopolymer concrete mixes were cast using fly ash, kaolin, sodium hydroxide, potassium hydroxide, sodium silicate and aggregates. Portland cement concrete (M30) was used as a reference sample. The effect of silica fume, temperature (40 °C, 60 °C, 80 °C,...

Development of air assisted liquid phase microextraction based on switchable-hydrophilicity solvent for the determination of palladium in environmental samples.

Talanta

Ezoddin M, Abdi K, Lamei N.
PMID: 27130115
Talanta. 2016 Jun 01;153:247-52. doi: 10.1016/j.talanta.2016.03.018. Epub 2016 Mar 07.

A novel switchable-hydrophilicity solvent (SHS) in combination with air-assisted liquid-liquid microextraction (AALLME) which called AA-SHS-LPME, has been applied for preconcentration of Pd(II). A water-immiscible solvent, Triethylamine (TEA), was used as a green switchable solvent that switched reversibly between one...

Simple and sensitive determination of trace nitrite in water by zero-crossing first-derivative synchronous fluorescence spectrometry using 6-amino-1,3- naphthalenedisulfonic acid as a new fluorescent probe.

Analytical and bioanalytical chemistry

Cao GP, Yang RY, Zhuang YF, Zuo D, Wang YH.
PMID: 28573318
Anal Bioanal Chem. 2017 Jul;409(19):4637-4646. doi: 10.1007/s00216-017-0409-4. Epub 2017 Jun 02.

A new fluorescent probe, 6-amino-1,3-naphthalenedisulfonic acid (ANDSA), has been developed for the determination of trace nitrite in different waters. This probe is based on the selective reaction of nitrite with ANDSA in hydrochloric acid solution to form the corresponding...

pH-Solubility Profiles of Organic Bases and Their Hydrochloride Salts.

Pharmaceutical research

Serajuddin AT, Mufson D.
PMID: 24272610
Pharm Res. 1985 Mar;2(2):65-8. doi: 10.1023/A:1016382426347.

Knowledge of comparative solubility profiles of a base and its hydrochloride salt is important in selecting one form over the other for dosage form design. The studies with two model bases, namely, tiaramide and papaverine, showed that, except during...

Synthesis of poly(methacrylic acid)-manganese oxide dihydroxide/silica core-shell and the corresponding hollow microspheres.

Journal of colloid and interface science

Sun S, Liu B, Fu X, Zhou M, Liu W, Bian G, Qi Y, Yang X.
PMID: 25454451
J Colloid Interface Sci. 2015 Jan 15;438:269-276. doi: 10.1016/j.jcis.2014.09.051. Epub 2014 Oct 08.

Poly(methacrylic acid)-MnO(OH)2/SiO2 core-shell microspheres were prepared by sol-gel hydrolysis of tetraethylorthosilicate (TEOS) in the presence of poly(methacrylic acid)-Mn(II) (PMAA-Mn(2+)) as template with ammonium hydroxide anion as catalyst and n-octadecyltrimethoxysilane (C18TMS) as pore-directing reagent. The PMAA-Mn(2+) core was prepared by...

Hydrogenation and dehydrogenation iron pincer catalysts capable of metal-ligand cooperation by aromatization/dearomatization.

Accounts of chemical research

Zell T, Milstein D.
PMID: 26079678
Acc Chem Res. 2015 Jul 21;48(7):1979-94. doi: 10.1021/acs.accounts.5b00027. Epub 2015 Jun 16.

The substitution of expensive and potentially toxic noble-metal catalysts by cheap, abundant, environmentally benign, and less toxic metals is highly desirable and in line with green chemistry guidelines. We have recently discovered a new type of metal-ligand cooperation, which...

Teucrium polium L. extract adsorbed on zinc oxide nanoparticles as a fortified sunscreen.

International journal of pharmaceutical investigation

Ansari M, Sharififar F, Kazemipour M, Sarhadinejad Z, Mahdavi H.
PMID: 24350038
Int J Pharm Investig. 2013 Oct;3(4):188-93. doi: 10.4103/2230-973X.121289.

INTRODUCTION: Zinc oxide nanoparticles (ZnOn) have been used as carriers and sun-protecting agents for Teucrium polium L. extract to enhance sun protection. ZnOn was synthesized by hydrolyzing zinc acetate using sodium hydroxide with mean particle diameter less than 500...

Tracer-monitored flow titrations.

Analytica chimica acta

Sasaki MK, Rocha DL, Rocha FRP, Zagatto EAG.
PMID: 26703261
Anal Chim Acta. 2016 Jan 01;902:123-128. doi: 10.1016/j.aca.2015.10.036. Epub 2015 Nov 06.

The feasibility of implementing tracer-monitored titrations in a flow system is demonstrated. A dye tracer is used to estimate the instant sample and titrant volumetric fractions without the need for volume, mass or peak width measurements. The approach was...

Showing 1 to 12 of 1092 entries