Article
Materials Science, Multidisciplinary
Hanyu Zhao, Yupeng Sun, Lu Yin, Zhao Yuan, Yiliang Lan, Dake Xu, Chunguang Yang, Ke Yang
Summary: The study found that 304-Cu stainless steel has better resistance against microbiologically influenced corrosion when exposed to Streptococcus mutans, with lower corrosion current density and larger resistance. The presence of Cu-oxide in the passive film of 304-Cu SS inhibits biofilm formation, demonstrating excellent biofilm inhibition ability.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2021)
Article
Metallurgy & Metallurgical Engineering
Xing Zhou, Qiyue Zhang, Jiarui Lu, Ying Zheng, Lin Wu, Dake Xu, Xue Zhang, Qiang Wang
Summary: This study investigates the corrosive effects of Streptococcus mutans on TC4 and functional gradient TC4/TC4-5Cu, and finds that copper alloying can reduce the corrosion rate and improve corrosion resistance.
ACTA METALLURGICA SINICA-ENGLISH LETTERS
(2023)
Article
Microbiology
Chiau-Jing Jung, Chih-Chieh Hsu, Jeng-Wei Chen, Hung-Wei Cheng, Chang-Tsu Yuan, Yu-Min Kuo, Ron-Bin Hsu, Jean-San Chia
Summary: The LiaR-regulated PCP protein in Streptococcus mutans plays a crucial role in bacterial biofilm formation and platelet adhesion. It is well-preserved among pathogenic streptococci and controls biofilm formation in vivo, suggesting its importance in colonization for S. mutans and possibly other pathogenic streptococci.
Article
Biochemistry & Molecular Biology
Tamar Barak, Eden Sharon, Doron Steinberg, Mark Feldman, Ronit Vogt Sionov, Miriam Shalish
Summary: This study found that cannabidiol (CBD) exhibits antibacterial and anti-biofilm activity against cariogenic bacteria Streptococcus mutans. CBD inhibits bacterial growth and biofilm formation in a dose-dependent manner, reduces pH values, and decreases the metabolic activity of preformed biofilms. CBD also prevents biofilm development when precoated on culture plate surfaces.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biotechnology & Applied Microbiology
Wenxi Li, Hewei Liang, Xiaoqian Lin, Tongyuan Hu, Zhinan Wu, Wenxin He, Mengmeng Wang, Jiahao Zhang, Zhuye Jie, Xin Jin, Xun Xu, Jian Wang, Huanming Yang, Wenwei Zhang, Karsten Kristiansen, Liang Xiao, Yuanqiang Zou
Summary: The study presents a Cultivated Oral Bacteria Genome Reference (COGR) consisting of 1089 high-quality genomes. COGR covers five phyla and contains 195 species-level clusters, with 315 genomes representing species with no taxonomic annotation. The oral microbiota differs between individuals, with person-specific clusters. The Streptococcus genus dominates COGR and many of these strains harbor quorum sensing pathways important for biofilm formation. Clusters containing unknown bacteria are enriched in individuals with rheumatoid arthritis, highlighting the importance of culture-based isolation for characterizing and exploiting oral bacteria.
NPJ BIOFILMS AND MICROBIOMES
(2023)
Article
Microbiology
So-Young Ham, Han-Shin Kim, Eunji Cha, Taehyeung Lim, Youngjoo Byun, Hee-Deung Park
Summary: Raffinose, a natural oligosaccharide, strongly inhibits biofilm formation and GTF-related gene expression in Streptococcus mutans, making it a potential antibiofilm agent for oral supplies and dental materials to prevent dental caries.
MICROBIOLOGY SPECTRUM
(2022)
Article
Agriculture, Multidisciplinary
Ji-Eun Lee, Hee Yeon Cho, Jae Hoon Lee, Dong Uk Ahn, Kee-Tae Kim, Hyun-Dong Paik
Summary: This study investigated the inhibitory effects of ovomucoid, a protein found in egg white, on the biofilm formation of Streptococcus mutans, the primary pathogen associated with tooth decay. The results showed that ovomucoid inhibited biofilm formation, reduced bacterial adhesion and aggregation, and lowered the metabolic activity of bacteria in the biofilm. In addition, ovomucoid decreased the synthesis of water-insoluble EPS by S. mutans. Therefore, ovomucoid has the potential to be used as an anti-biofilm agent for the treatment of dental caries.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2023)
Article
Biotechnology & Applied Microbiology
Benjamin Tuck, Nadia Leinecker, Elizabeth Watkin, Anthony Somers, Maria Forsyth, Laura L. Machuca
Summary: In natural environments, microorganisms form biofilms on surfaces, which can lead to biofouling and microbiologically influenced corrosion. The heterogeneity of species in natural systems allows for higher tolerance to adverse conditions compared to laboratory simulations. However, current chemical treatments for biofilms are dangerous and face international restrictions. To address this, a multi-functional compound called CTA-4OHcinn has been developed to combat both corrosion and biofilm formation. This study demonstrates that CTA-4OHcinn is effective in reducing the viability of mature biofilms and targets the cell membrane, making it a true multi-functional organic corrosion inhibitor.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Immunology
Shota Mayumi, Masae Kuboniwa, Akito Sakanaka, Ei Hashino, Asuka Ishikawa, Yura Ijima, Atsuo Amano
Summary: Recent studies have shown phenotypic and metabolic heterogeneity in related species including Streptococcus oralis, Streptococcus mutans, and Streptococcus gordonii. D-tagatose was found to be abundant in the saliva of individuals with good oral hygiene, and it selectively inhibited the growth of oral pathogens S. mutans and S. gordonii while minimally affecting the oral commensal S. oralis. This suggests the potential use of D-tagatose as an oral prebiotic for manipulating the metabolism of targeted oral streptococci.
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Jun Li, Cuiwei Du, Zhiyong Liu, Xiaogang Li
Summary: This study investigated the impact of a wild-type nitrate-reducing Bacillus licheniformis strain on the corrosion behavior of X80 steel under anaerobic conditions. The results showed that the bacterium accelerated the corrosion of X80 steel through biocatalytic cathodic nitrate reduction and acidification. However, after approximately one week of immersion in the bacterial culture, the corrosion rate of X80 steel decreased due to iron biomineralization.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Zhaoyang Chen, Wenwen Dou, Shougang Chen, Yanan Pu, Zixuan Xu
Summary: The eutrophication of seawater has harmful effects on the environment and microbes, which in turn affects the biocorrosion of marine engineering materials. This study investigated the microbiologically influenced corrosion (MIC) of Cu in the presence of Desulfovibrio vulgaris under different nutritional conditions. The results showed that more severe corrosion occurred when D. vulgaris was cultured in a more nutritional medium, resulting in the generation of higher concentrations of H2S. The study also found that the depth of pitting on Cu increased with higher levels of nutrient elements N and P.
BIOELECTROCHEMISTRY
(2022)
Article
Engineering, Mechanical
Di Wang, Ru Jia, Sith Kumseranee, Suchada Punpruk, Tingyue Gu
Summary: The study found that Consortium II had better growth on the surface of 304 SS compared to 316 SS in enriched artificial seawater, with 79% more sulfate reducing bacteria (SRB) and 37% more acid producing bacteria (APB) on 304 SS. Pitting corrosion was also observed. The results suggested that 316 SS was more resistant to microbiologically influenced corrosion (MIC) by the oilfield biofilm compared to 304 SS.
ENGINEERING FAILURE ANALYSIS
(2021)
Article
Microbiology
Rodrigo A. Giacaman, Rodrigo Umana, Maria Jose Nunez, Natalia Diaz-Garrido, Constanza Echeverria, Natalia Garcia-Manriquez, Alex Mira, Constanza E. Fernandez, Karla Gambetta-Tessini, Carla P. Lozano
Summary: This study aimed to investigate the impact of saliva dilutions on an in vitro caries model using Streptococcus mutans biofilms. The results showed that even small quantities of saliva could significantly reduce demineralization in enamel and dentin, and the protective effect of saliva was dose-dependent.
Article
Microbiology
Muna Aqawi, Ronit Vogt Sionov, Ruth Gallily, Michael Friedman, Doron Steinberg
Summary: The study demonstrated that Cannabigerol (CBG) can effectively prevent the formation of Streptococcus mutans biofilms, reduce biofilm thickness and metabolic activity, and alter the surface roughness of the biofilms. CBG also decreased the expression of genes related to S. mutans biofilm formation, indicating its potential as a preventive treatment for dental caries.
Article
Food Science & Technology
Guofang Zhang, Ying Tan, Tianshu Yu, Sitong Wang, Libo Liu, Chun Li
Summary: The combination of reuterin and catechin shows synergistic antimicrobial activity against Streptococcus mutans by inhibiting growth, biofilm formation, water-insoluble glucan production, and virulence genes expression. This novel combination demonstrates potential as a natural antibacterial agent for the prevention of oral diseases.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)