Results 201 to 210 of about 19,455 (252)

Effects of Bleaching Protocols on the Esthetic Outcome and Surface Integrity of Enamel Treated With an Ammonia‐Free Silver Fluoride Solution

Journal of Esthetic and Restorative Dentistry, Volume 38, Issue 9, Page 1754-1765, September 2026.
ABSTRACT Objective To investigate the effects of three bleaching protocols on the color stability and surface roughness of enamel previously treated with a water‐based, ammonia‐free silver fluoride solution (Riva Star Aqua). Materials and Methods Eighty‐eight human enamel/dentin specimens were demineralized and treated with Riva Star Aqua, divided into
Ahmed Alshawi, Fadimeana Lal, Esra Yildiz, Sevda Ozel Yildiz, Ugur Erdemir   +4 more
wiley   +1 more source

Histopathological investigation of wound healing activities of Lucilia sericata Larva and Achillea sintenisii extract combinations in diabetic rat wound model

Medical and Veterinary Entomology, Volume 40, Issue 3, Page 659-671, September 2026.
Lucilia sericata larvae secrete bioactive compounds that promote wound debridement and antimicrobial defence in chronic tissue injuries. Achillea sintenisii extract offers phytotherapeutic support, enhancing healing through anti‐inflammatory and regenerative properties. Diabetic Wistar rats were treated topically with Furacin®, larval secretions, plant
Nevra Polat, Salih Mollahaliloğlu, Murat Koç   +2 more
wiley   +1 more source

The potential of plant-derived triterpenoids as biological nitrification inhibitors. [PDF]

Appl Microbiol Biotechnol
Ribeiro H, Papadopoulou ES, Zhang K, Kanellopoulos AE, Papadopoulou KK, Karpouzas DG.   +5 more
europepmc   +1 more source

Legacy effects of herbicides on soil nitrifying guilds exposed to drought. [PDF]

FEMS Microbiol Ecol
Müller LJ, Saghaï A, Jones CM, Hallin S.   +3 more
europepmc   +1 more source

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The inhibitory effects of free ammonia on ammonia oxidizing bacteria and nitrite oxidizing bacteria under anaerobic condition

Bioresource Technology, 2017
The free ammonia (FA) inhibition on ammonia oxidizing bacteria (AOB) and nitrite oxidizing bacteria (NOB) under anaerobic condition was investigated in this study. The results indicated that NOB was more sensitive to the FA anaerobic treatment than AOB. The FA anaerobic inhibition on nitrifier gradually heightened with the increase of FA concentration.
Xiyao Li
exaly   +3 more sources

Enzymology of the oxidation of ammonia to nitrite by bacteria

Antonie van Leeuwenhoek, 1997
The enzymes which catalyze the oxidation of ammonia to nitrite by autotrophic bacteria are reviewed. A comparison is made with enzymes which catalyze the same reactions in methylotrophs and organotrophic heterotrophic bacteria.
A B, Hooper, T, Vannelli, D J, Bergmann, D M, Arciero   +3 more
openaire   +2 more sources

Contribution of ammonia-oxidizing archaea and ammonia-oxidizing bacteria to ammonia oxidation in two nitrifying reactors

Environmental Science and Pollution Research, 2018
In this study, two laboratory nitrifying reactors (NRI and NRII), which were seeded by sludge from different sources and operated under different operating conditions, were found to possess distinct dominant ammonia-oxidizing microorganisms. Ammonia-oxidizing archaeal (AOA) amoA genes outnumbered ammonia-oxidizing bacterial (AOB) amoA genes in reactor ...
Papitchaya, Srithep, Preeyaporn, Pornkulwat, Tawan, Limpiyakorn   +2 more
openaire   +2 more sources

Ammonia Oxidizing Bacteria

2023
Ammonia oxidising bacteria (AOB) and archaea are ubiquitous microorganisms, but their abundance and diversity vary widely across environments and play a crucial role in many ecosystems and aquatic ecosystems in particular. However, characterization of AOB communities require genomic methods as they are difficult to isolate from samples.
openaire   +1 more source

Ammonia-Oxidizing Bacteria in Wastewater

2011
Ammonia-oxidizing bacteria (AOB) have a key role in the conversion of ammonia to nitrite in wastewater treatment plants (WWTPs). The characterization of AOB communities in such systems requires the use of genomic methods as AOB are difficult to isolate from environmental samples.
Bellucci, Micol, Curtis, Thomas P
openaire   +3 more sources

Genetic Transformation of Ammonia-Oxidizing Bacteria

2011
The study of traits of ammonia-oxidizing bacteria (AOB) by genetic transformation is an approach that is facilitated by the availability of AOB genome sequences. To transform an AOB, a vector construct is introduced into the cells by electroporation or conjugation to effect the inactivation, complementation, or expression of a selected gene.
Luis A, Sayavedra-Soto, Lisa Y, Stein
openaire   +2 more sources