The Effect of Vinegar, Rose Water and Ethanolic Extract Green Tea Against Oral Streptococci, an In Vitro Study

Antibacterial Activity and Fluoride Release of Nanochitosan-modified Glass Ionomer Compared to Conventional Cement: In vitro study

“…The decline in antimicrobial action GIC be related to its maturation as the fresh mix of low pH depicted a higher antibacterial effect. The antimicrobial activity of chitosan nanoparticles was in agreement with Divya et al, Wassel and Khattab, Aliasghari et al and Ibrahim et al which could be attributed to catalyzing fluoride release by chitosan and high activity of chitosan nanoparticles as polycationic nanoparticles interact with the negatively charged surface of bacteria with higher affinity (Ibrahim et al 2015;Aliasghari et al 2016;Divya et al 2017;Wassel and Khattab 2017). Moreover, the large surface area and spherical character of chitosan nanoparticles enhanced their antimicrobial activity by tightly adsorbing to the bacterial surface disrupting its membrane and causing leakage of intracellular molecules.…”

“…Among the tried natural products, chitosan, is a nontoxic linear biopolymer produced by partial deacetylation of chitin with many amino groups attached to the polysaccharide main chain that are readily available for chemical reaction and salt formation with acids (Ibrahim et al 2015;Aliasghari et al 2016;Divya et al 2017;Elbahrawy and Abdel Rahim 2017;Mulder and Anderson-Small 2019;Marawan El Azzazy et al 2021;Soygun et al 2021). Chitosan possesses weak basic chemical character and shows water and organic solutions insolubility but, shows solubility in diluted water-based acids such as acetic acid.…”

Chitosan nanoparticles for enhancing drugs and cosmetic components penetration through the skin

“…The positive charges and relatively high molecular weight promote chitosan adhesion to the skin, supporting its use as a percutaneous drug delivery vehicle. Other attributes that have been reported for CT are antibacterial, antioxidant, anti-inflammatory and UV protective properties [12,13].…”

Evaluation of antimicrobial property of nanochitosan coated orthodontic brackets against Streptococcus mutans and Lactobacillus acidophilus – an in vitro study

“…e result of the study coincided with previous studies that had demonstrated the antibacterial property of Chitosan and nano chitosan particles. [16][17][18][19][20][21][22][23][24] Chitosan exhibited potent antimicrobial properties against cariogenic bacteria when added to dentifrices, mouthwashes, composite resins, orthodontic bonding agents, and impression materials without affecting their mechanical and clinical properties. [16][17][18][19][20][21][22][23][24] Chitosan acts against bacteria by inhibiting the bacterial enzymes, causing chelation of metal ions and forming polyelectrolyte complexes on the bacterial cell wall.…”

“…[16][17][18][19][20][21][22][23][24] Chitosan exhibited potent antimicrobial properties against cariogenic bacteria when added to dentifrices, mouthwashes, composite resins, orthodontic bonding agents, and impression materials without affecting their mechanical and clinical properties. [16][17][18][19][20][21][22][23][24] Chitosan acts against bacteria by inhibiting the bacterial enzymes, causing chelation of metal ions and forming polyelectrolyte complexes on the bacterial cell wall. [17,[25][26][27][28][29][30] is specific action of chitosan against S. mutans and L. acidophilus may be due to the presence of more anionic peptidoglycan and Teichoic acid in the cell wall of gram-positive bacteria that interact with the cationic amino group of chitosan leading to cell death.…”