Results 21 to 30 of about 1,055,689 (337)

No evidence for a culturable bacterial tetrodotoxin producer in Pleurobranchaea maculata (Gastropoda: Pleurobranchidae) and Stylochoplana sp. (Platyhelminthes: Polycladida) [PDF]

open access: yes, 2015
Tetrodotoxin (TTX) is a potent neurotoxin found in the tissues of many taxonomically diverse organisms. Its origin has been the topic of much debate, with suggestions including endogenous production, acquisition through diet, and symbiotic bacterial ...
Cary, S. Craig   +3 more
core   +3 more sources

The release of biologically hazardous chemical compounds from orthodontic adhesive systems used in Europe and in the USA — an in vitro study

open access: yesPolimery, 2015
The study assessed the chemical stability of ConTec LC, Resilence, Light Bond and TransbondXT orthodontic adhesive resins. The subject of the analysis was the release of HEMA (2-hydroxyethylmethacrylate), TEGDMA (triethylene glycol dimethacrylate ...
Konrad Małkiewicz   +4 more
doaj   +1 more source

HPLC Quantification of Glucosamine Sulfate in Eggshell membranes from White and Brown Chicken Eggs

open access: yesArchives of Pharmaceutical Sciences Ain Shams University, 2022
Eggshell membrane (ESM), a thin membrane lining the eggshell of chicken eggs, is a natural byproduct attracting the attention of many researchers worldwide due to its valuable composition and beneficial biological activities.
Nora Mady   +4 more
doaj   +1 more source

Stability of extemporaneously prepared ophthalmic solutions for mydriasis [PDF]

open access: yes, 2018
Purpose Results of an evaluation of the physical and chemical stability of extemporaneously prepared adult and pediatric ophthalmic solutions containing combinations of phenylephrine, tropicamide, and cyclopentolate are reported.
Camp, Nicole A.   +4 more
core   +2 more sources

The phenolic content, antioxidant and cytotoxic activities of Origanum sipyleum from Turkey

open access: yesInternational Journal of Secondary Metabolite, 2018
Origanum sipyleum is a medicinal plant species belonging to the genus Origanum and traditionally vegetative parts of this plant have been used as medicinal tea or food additives.
Arzu Kaska
doaj   +1 more source

Combined Antimicrobial Activity of Extracts from Quercus infectoria Galls and Scrophularia striata Aerial Parts for an Anticariogenic Herbal Mouthwash

open access: yesJournal of Pharmacopuncture, 2023
Objectives: Dental caries is one of the most prevalent human diseases worldwide. The disease initiates with bacterial adherence to the tooth surface followed by the formation of dental plaques.
Pooya Falakdin   +2 more
doaj   +1 more source

Three-dimensional ZnS/MoS2 on cellulose paper for determination of Digoxin in urine and plasma [PDF]

open access: yesNanochemistry Research
The current study describes the in-situ growth of ZnS/MoS2 on cellulose paper using the thin-film microextraction (TFME) method. On cellulose paper, ZnS/MoS2 was grown using a simple, easy, and inexpensive hydrothermal method.
Marzieh Piryaei   +2 more
doaj   +1 more source

One pot ‘click’ reactions: tandem enantioselective biocatalytic epoxide ring opening and [3+2] azide alkyne cycloaddition [PDF]

open access: yes, 2010
Halohydrin dehalogenase (HheC) can perform enantioselective azidolysis of aromatic epoxides to 1,2-azido alcohols which are subsequently ligated to alkynes producing chiral hydroxy triazoles in a one-pot procedure with excellent enantiomeric excess.
Campbell-Verduyn, Lachlan S.,   +6 more
core   +3 more sources

Chemical Compositions, Antioxidant and Antimicrobial Activities of the Essential Oil and Extracts of Lamiaceae Family (Ocimum basilicum and Thymbra spicata) from Turkey

open access: yesInternational Journal of Secondary Metabolite, 2017
Lamiaceae has numerous proven biological properties. Our aim was to investigate the antioxidant and antimicrobial activities and chemical composition of essential oil and extracts of Ocimum basilicum and Thymbra spicata.
Güler İnci Tanrıkulu   +4 more
doaj   +1 more source

Stability of Extemporaneously Prepared Rufinamide Oral Suspensions [PDF]

open access: yes, 2010
Background: Rufinamide is an oral antiepileptic drug indicated for adjunctive therapy in treating generalized seizures associated with Lennox-Gastaut syndrome. Currently, rufinanide is available as 200-mg and 400-mg tablets. A liquid dosage form does not
Best, Robert   +3 more
core   +2 more sources

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