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Proteins in Cosmetics
Published in E. Desmond Goddard, James V. Gruber, Principles of Polymer Science and Technology in Cosmetics and Personal Care, 1999
E. Desmond Goddard, James V. Gruber
Phosphorylation of the serine hydroxyl group has been tested to improve the functional and technical properties of food proteins. Increase of water solubility, water-holding capacity, emulsifying, and foaming properties have been obtained by this derivatization (48). One possible chemical route for protein phosphorylation is based on the reaction with cyclic sodium trimetaphosphate (Fig. 14). Cyclic sodium trimetaphosphate is strongly
Activity of sodium trimetaphosphate, associated or not with fluoride, on dual-species biofilms
Published in Biofouling, 2019
Thamires Priscila Cavazana, Thayse Yumi Hosida, Juliano Pelim Pessan, Caio Sampaio, Douglas Roberto Monteiro, Alberto Carlos Botazzo Delbem
Fluoride (F) products have been widely studied with the idea of preventing, arresting, or reverting dental caries, with F-containing toothpastes showing a marked effect on caries reduction (Clarkson et al. 2010), especially for concentrations of 1,000 ppm F or above (Walsh et al. 2019). Thus, the supplementation of low-F toothpastes (∼500 ppm F) with phosphate salts has been investigated as an alternative for increasing the clinical efficacy of these formulations. The clinical efficacy of low-F dentifrices containing sodium trimetaphosphate (TMP) was shown to be higher than that of a conventional dentifrice (1,100 ppm F) in a randomised clinical trial (Freire et al. 2016), which has been substantiated by in vitro and in situ studies (Takeshita et al. 2009, 2015, 2016) on enamel de- and re-mineralisation.
Sodium trimetaphosphate and hexametaphosphate impregnated with silver nanoparticles: characteristics and antimicrobial efficacy
Published in Biofouling, 2018
Carla Corrêa Mendes-Gouvêa, Jackeline Gallo do Amaral, Renan Aparecido Fernandes, Gabriela Lopes Fernandes, Luiz Fernando Gorup, Emerson Rodrigues Camargo, Alberto Carlos Botazzo Delbem, Debora Barros Barbosa
Nanocomposites were synthesized based on the protocol proposed by Miranda et al. (2010), with some modifications. The synthesis was carried out in an alcoholic medium (isopropanol) using sodium borohydride (NaBH4, Sigma-Aldrich, St Louis, MO, USA) as a reducing agent. Suspensions containing sodium trimetaphosphate (TMP, Sigma-Aldrich, CAS 7785-84-4) or sodium hexametaphosphate (HMP, Sigma-Aldrich, CAS 68915-31-1), fluoride (NaF, Merck, Darmstadt, Germany), and silver nitrate (AgNO3, Merck) were prepared in the presence of a surfactant (ammonium salt of polymethacrylic acid (NH-PM), Polysciences, Inc., Warrington, PA, USA). AgNO3 was employed at 1% or 10% of the phosphate weight. The molar proportions between phosphates and fluoride was 1.2:1 TMP/NaF or 0.62:1 HMP/NaF, and between silver ions (Ag+) and NaBH4 it was 1:1.26. Samples were dried overnight at 70°C. AgNP with no polyphosphates was also synthesized.
Fluoride toothpastes containing micrometric or nano-sized sodium trimetaphosphate reduce enamel erosion in vitro
Published in Acta Odontologica Scandinavica, 2018
Marcelle Danelon, Juliano Pelim Pessan, Vinicius Rodrigues dos Santos, Erika Kiyoko Chiba, Luhana Santos Gonzales Garcia, Emerson Rodrigues de Camargo, Alberto Carlos Botazzo Delbem
Several studies have been conducted attempting to enhance the effects of topically applied F products against erosion, among which the use of inorganic phosphates has been shown to produce additional protective effects when added to toothpastes [9,10], mouthrinses [11], gels and varnishes [12,13]. The addition of sodium trimetaphosphate (TMP) in micrometric particles to F toothpastes was shown to be significantly more effective against enamel erosion when compared with their counterparts without TMP [9,10]. This has later prompted to studies aiming to assess the impact of nano-sized TMP added to F toothpastes on the process of enamel rehardening in a pH-cycling caries model, showing increased enamel rehardening compared to conventional toothpaste (1100 ppm F) [14]. The above-mentioned benefits of using nano-sized TMP have not been studied on enamel erosion.