Article
Multidisciplinary Sciences
Mohamed Hassan, Eman Bakhurji, Rasha AlSheikh
Summary: This study investigated the impact of dental curing light and laser treatments on dentin hardness after applying Silver Diamine Fluoride (SDF) in carious primary molars. Results showed that the group receiving laser treatment after SDF had the highest surface hardness.
SCIENTIFIC REPORTS
(2021)
Article
Dentistry, Oral Surgery & Medicine
Chelsea Mitchell, Andrew J. Gross, Peter Milgrom, Lloyd Mancl, David B. Prince
Summary: The study showed that 38% silver diamine fluoride was effective in arresting root surface and crown margin caries lesions in older adults, with slightly better results on root surfaces. Additionally, all furcal lesions were successfully treated within 6 months of treatment.
JOURNAL OF DENTISTRY
(2021)
Article
Materials Science, Multidisciplinary
Sonya Jamal Hamalaw, Fadil Abdulla Kareem, Arass Jalal Noori
Summary: This research analyzed the dispersion and impact of MgONPs varnish on inhibiting enamel demineralization. Different concentrations of MgONPs varnish were applied to enamel surfaces, and the dispersion was examined using SEM and EDX. The results showed that 5% MgONPs varnish had the highest dispersion, and the 2.5% and 1.25% varnishes showed significant inhibition of calcium release, similar to the 5% NaF varnish. The study concluded that the 1.25% and 2.5% MgONPs varnishes had the maximum protection capacity in inhibiting enamel demineralization.
Article
Dentistry, Oral Surgery & Medicine
B. Holguin-Loya, U. Soto-Barreras, R. Martinez-Martinez, G. Martinez-Mata, L. Sanin, M. Nevarez-Rascon, R. Dominguez-Perez
Summary: This study investigated the association between count of S. mutans in supragingival biofilm and fluoride exposure in scholar children, finding that fluoride levels in urine and saliva were negatively associated with the count of S. mutans, while plaque index, D3-6MFS and time of last visit to the dentist showed a positive association, indicating the potential key role of fluoride in reducing the risk of dental caries.
JOURNAL OF DENTAL SCIENCES
(2022)
Article
Dentistry, Oral Surgery & Medicine
Erica Torres de Almeida Piovesan, Marly Vale Soares Silva, Tatiana Amabile de Campos, Vicente de Paulo Martins, Ana Cristina Barreto Bezzerra
Summary: The study compared the antimicrobial effect of different concentrations of silver diamine fluoride and chlorhexidine in treating dentin caries lesions. Results showed that silver diamine fluoride was more effective in reducing microorganisms compared to chlorhexidine.
AMERICAN JOURNAL OF DENTISTRY
(2021)
Article
Multidisciplinary Sciences
Kittipit Klanliang, Yoko Asahi, Hazuki Maezono, Maki Sotozono, Nanako Kuriki, Hiroyuki Machi, Shigeyuki Ebisu, Mikako Hayashi
Summary: This study assessed the microbiological effects of silver diamine fluoride (SDF) on dental biofilms. The results showed that SDF treatment significantly reduced the cell count, biofilm-forming cells, biofilm thickness, and proportion of dead cells. SDF negatively influenced dental biofilm growth but did not target a specific oral taxon.
SCIENTIFIC REPORTS
(2022)
Article
Infectious Diseases
Junyuan Luo, Zening Feng, Xiaohui Lyu, Linglin Zhang
Summary: This study investigated the effects of LF-1, a lactotransferrin-derived antimicrobial peptide, on the cariogenic virulence factors of Streptococcus mutans. LF-1 inhibited the growth and key enzymatic activity of S. mutans, as well as downregulated virulence-associated gene expression. These findings suggest that LF-1 has promising application prospects in combating S. mutans and dental caries.
Article
Biology
Eman Alsagob, Nozha Sawan, Shahad Aladhyan, Nouf Alsalem, Abeer Alshami, Sarah Albluwi
Summary: This study found that delaying restoration by two weeks after applying SDF significantly reduced discoloration of caries-infected teeth samples under laboratory conditions, with neither composite nor GIC being superior.
SAUDI JOURNAL OF BIOLOGICAL SCIENCES
(2022)
Article
Chemistry, Multidisciplinary
Amit Wolfoviz-Zilberman, Yael Houri-Haddad, Nurit Beyth
Summary: In vitro and in vivo models were compared in this study to evaluate anti-caries modalities for prevention and treatment. The developed in vitro caries model demonstrated rapid caries development within 5 days, especially in the depth of occlusal fissures in the control group. This model may provide a novel animal-sparing approach for caries disease studies and assessing the efficacy of antibacterial dental materials.
APPLIED SCIENCES-BASEL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Hollis Haotian Chai, Kitty Jieyi Chen, Duangporn Duangthip, Edward Chin Man Lo, Chun Hung Chu, Sherry Shiqian Gao
Summary: This study aimed to explore parental perspectives on an outreach dental service and silver diamine fluoride (SDF) therapy to arrest and prevent early childhood caries. The results of this study showed that the outreach dental service improved parental dental knowledge. Some parents were generally satisfied with the outreach dental services, preferred caries arrest over aesthetics, and accepted SDF therapy. However, some parents worried about the potential toxicity of SDF.
JOURNAL OF DENTISTRY
(2022)
Article
Microbiology
Xiaoying Lyu, Chungen Li, Jin Zhang, Liang Wang, Qingsong Jiang, Yusen Shui, Lan Chen, Youfu Luo, Xin Xu
Summary: The study introduced a novel small molecule, LCG-N25, derived from NAP, which exhibited promising antimicrobial activity against cariogenic bacteria without inducing drug resistance. This new compound could potentially serve as an effective adjuvant in the management of dental caries.
FRONTIERS IN MICROBIOLOGY
(2021)
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.
Review
Dentistry, Oral Surgery & Medicine
Josie Shizhen Zhang, Zigui Chen, Chun-Hung Chu, Ollie Yiru Yu
Summary: This study aimed to explore the effects of silver diamine fluoride (SDF) on the microbial community of carious lesions. A systematic search of English-language publications was performed, and the results showed that SDF had varying effects on the microbial diversity, relative abundance of microbial taxa, and predicted functional pathways in dental plaque and carious dentin. SDF did not significantly affect the species diversity of plaque microbial community but changed the beta-diversity of the carious dentin microbial community, with alterations in the relative abundance of bacterial species.
JOURNAL OF DENTISTRY
(2023)
Article
Biochemical Research Methods
Lina M. Marin, Jaime A. Cury, Walter L. Siqueira
Summary: In this study, an in vitro cariogenic Streptococcus mutans biofilm model was modified and validated by assessing the dose-response effect of fluoride on enamel demineralization. The model demonstrated a dose-response effect of fluoride in influencing enamel demineralization, showing the potential for assessing novel biotechnological strategies for caries prevention.
JOURNAL OF MICROBIOLOGICAL METHODS
(2022)
Article
Microbiology
Cheng Li, Cai Qi, Sirui Yang, Zhengyi Li, Biao Ren, Jiyao Li, Xuedong Zhou, Huawei Cai, Xin Xu, Xian Peng
Summary: This study aimed to identify adaptive mutations of S. mutans to fluoride tolerance and found that the -36G -> T mutation in the promoter region of F0F1-ATPase gene drastically contributed to the fluoride tolerance and enhanced cariogenicity of S. mutans.
FRONTIERS IN MICROBIOLOGY
(2022)
Article
Energy & Fuels
Luis Angel Zambrano-Intriago, Mayra Lissette Gorozabel-Mendoza, Alexandra Cordova Mosquera, Maria Hipatia Delgado-Demera, Marta Maria Menezes Bezerra Duarte, Joan Manuel Rodriguez-Diaz
Summary: This study investigates the potential use of rice husk ash and rice husk as adsorbents for the removal of reactive blue dye 19. The adsorbents were characterized and the optimal conditions for adsorption were determined. The kinetics of adsorption showed that rice husk ash fits best to the Bangham model, while rice husk fits best to the pseudo-second order and Bangham models. The thermodynamics study revealed that the adsorption of reactive blue dye 19 by rice husk and rice husk ash is spontaneous and exothermic.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Engineering, Environmental
Jonathan Agual-Lucas, Cristopher Mera-Holguin, Luis Angel Zambrano-Intriago, Enrique Ruiz-Reyes, Yunet Gomez-Salcedo, Ricardo Jose Baquerizo-Crespo, Joan Manuel Rodriguez-Diaz
Summary: This study focused on evaluating the potential use of corn stalks as an adsorbent for removing organophosphate dimethoate pesticides from aqueous solutions. Experimental results showed that removal of dimethoate was more effective in alkaline conditions. Several models were applied to analyze the equilibrium isotherms, with the Sips, Redlich-Peterson, and Toth models providing the best fit for the experimental data and accurately describing the adsorption process of dimethoate on corn stalks.
BIOREMEDIATION JOURNAL
(2023)
Article
Environmental Sciences
Kevin Jhon Fernandez-Andrade, Alex Ariel Fernandez-Andrade, Luis Angel Zambrano-Intriago, Luis Ernesto Arteaga-Perez, Serguei Alejandro-Martin, Ricardo Jose Baquerizo-Crespo, Rafael Luque, Joan Manuel Rodriguez-Diaz
Summary: Biomass layered hybrids were synthesized by in situ growth from rice husk and microwave-assisted synthesized MIL-53(Al) particles, leading to reduced reaction times. The resulting hybrid (MIL-53(Al)@RH) showed high crystallinity, thermal decomposition phases, and functional groups. The hybrid particles exhibited easy separation during heterogeneous processing and maintained the properties of MIL-53(Al) for the removal of Oxytetracycline, Diclofenac, and Glyphosate in aqueous solutions.
Article
Environmental Sciences
Bryan Fernando Rivadeneira-Mendoza, Otoniel Anacleto Estrela Filho, Kevin Jhon Fernandez-Andrade, Fabiola Curbelo, Fausthon Fred da Silva, Rafael Luque, Joan Manuel Rodriguez-Diaz
Summary: This study summarizes and analyzes the use of new hybrids between biomass and metal-organic frameworks (MOF@biomass) in the adsorption process of pollutants. The results show that the functionalization of biomass with MOFs can lead to hybrid materials with higher adsorption capacity. This research is of great significance for environmental protection and industrial applications.
ENVIRONMENTAL RESEARCH
(2023)
Review
Environmental Sciences
Kelvin Adrian Sanoja-Lopez, Kevin Alberto Quiroz-Suarez, Alex Alberto Duenas-Rivadeneira, Naga Raju Maddela, Maria C. B. S. M. Montenegro, Rafael Luque, Joan Manuel Rodriguez-Diaz
Summary: The excessive contamination of drinking water sources by pesticides has harmful effects on human health and the environment. Filtration by polymeric membranes has been identified as a promising technique to address this issue. Functionalization of polymeric membranes has been explored to enhance pesticide retention results.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Luis Angel Zambrano-Intriago, Celia G. Amorim, Alberto N. Araujo, Dmitrij Gritsok, Joan Manuel Rodriguez-Diaz, Maria C. B. S. M. Montenegro
Summary: This work describes the development of an affordable, simple, and accurate electrochemical biosensor for the determination of glyphosate (GLY) in river and drinking water samples. The biosensor showed high reproducibility, excellent analytical performance, repeatability, and accuracy. It proves to be selective against other pesticides, organic acids, and inorganic salts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Luis Angel Zambrano-Intriago, Erlinjka Valentina Daza-Lopez, Alex Fernandez-Andrade, Rafael Luque, Celia G. Amorim, Alberto N. Araujo, Joan Manuel Rodriguez-Diaz, Maria C. B. S. M. Montenegro
Summary: The aim of this study was to investigate the potential of the hybrid material MIL-53(Al)@RH for the adsorption of glyphosate in aqueous solution. The results showed that a maximum adsorption capacity of 296.95 mg g(-1) was achieved in 30 min with a ratio of 0.04 g MIL-53(Al)@RH/50 mL of solution at pH(0) 4. The adsorption kinetics and equilibrium were appropriately described by Avrami and pseudo-second order models, and Langmuir and Sips models respectively. Hydrogen bonds, pi*-pi interactions, and complexation between the metal centers of MIL-53(Al) and the anionic groups of glyphosate were postulated as the adsorption mechanisms.
Article
Environmental Sciences
Rayany Magali da Rocha Santana, Daniella Carla Napoleao, Joan Manuel Rodriguez-Diaz, Rayssa Kelen de Mendonca Gomes, Marina Gomes Silva, Ramon Raudel Pena Garcia, Gloria Maria Vinhas, Marta Maria Menezes Bezerra Duarte
Summary: The study aimed to develop an original catalytic composite of bacterial cellulose (BC) and pyrite (FeS2) for environmental application. FeS2 nanoparticles were synthesized and immobilized on the BC structure. The FTIR and XRD analyzes confirmed the presence of Fe-S bonds and pyrite peaks in BC, indicating successful immobilization. SEM analysis showed the morphology of cellulose covered by FeS2 particles, further confirming the composite production.
Article
Environmental Sciences
Angelo Noe Marquinez-Marquinez, Nikolt Stephanie Loor-Molina, Luis Santiago Quiroz-Fernandez, Naga Raju Maddela, Rafael Luque, Joan Manuel Rodriguez-Diaz
Summary: Per- and polyfluoroalkyl substances (PFASs), widely used since 1940 for their stability, have raised global concern due to their presence in water and soil, posing threats to the environment and human health. This work reviews the literature on remediation techniques for PFASs-contaminated soil and water. Ball milling, chemical oxidation, and thermal desorption are effective techniques for soil remediation, while electrocoagulation, membrane filtration, and various types of treatments show promising results for water remediation. The improvisation and application of these techniques on a larger scale are necessary to confirm their efficiency.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Leandra P. Santos, Diana Lermen, Rafael Galiza Yoshimura, Bruno Leuzinger da Silva, Andre Galembeck, Thiago A. L. Burgo, Fernando Galembeck
Summary: Hygroelectric cells can simultaneously deliver hydrogen, hydrogen peroxide, and electric current from liquid water or vapor at room temperature. Water dehydrogenation is a non-spontaneous reaction under standard conditions but can occur in an open, non-electroneutral system, supporting the experimental results. This research provides a new example of chemical reactivity modification in charged interfaces and has the potential to predict unexpected new chemical reactions through experimental methods and thermodynamic analysis. Hygroelectric cells, built from common materials using scalable processes, may eventually become a source of energy and valuable chemicals.
Article
Engineering, Chemical
Dayanara Daniela Salinas-Echeverria, Luis Carlos Sanchez-De La Cruz, Luis Angel Zambrano-Intriago, Joan Manuel Rodriguez-Diaz, Kelvin Adrian Sanoja-Lopez, Rafael Luque, Kevin Jhon Fernandez-Andrade, Yunet Gomez-Salcedo, Ricardo Jose Baquerizo-Crespo
Summary: The objective of this research was to evaluate the performance of a continuous electro-coagulation (EC) reactor for treating surface waters with high turbidity levels. The study found that increasing the flow rate, voltage, and operating time improved turbidity removal, but high initial turbidity levels had a negative impact on removal. The continuous EC test achieved a high turbidity removal efficiency, but resulted in an increase in aluminum concentration, exceeding the limits set by WHO. Economic analysis demonstrated the feasibility of implementing the continuous EC reactor on a larger scale.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Environmental Sciences
Carlos Augusto Morales-Paredes, Imelda Rodriguez-Linzan, Maria Dolores Saquete, Rafael Luque, Sameh M. Osman, Nuria Boluda-Botella, Rodriguez -Diaz Joan Manuel
Summary: The aim of this study was to extract and characterize silica materials from various agro-industrial wastes including sugarcane bagasse, corn stalk, and rice husk. The results showed that silica yields of 17.91%, 9.39%, and 3.25% were obtained for RH, CS, and SCB, respectively. The textural properties indicated that the siliceous materials had mesoporous structures, with SCB and CS forming crystalline SiO2 and RH forming amorphous. XPS spectra demonstrated the presence of Si4+ species in RH, and Si3+/Si4+ tetrahedra in SCB and CS.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Otoniel Anacleto Estrela Filho, Bryan Fernando Rivadeneira-Mendoza, Kevin Jhon Fernandez-Andrade, Luis Angel Zambrano-Intriago, Fausthon Fred da Silva, Rafael Luque, Fabiola D. S. Curbelo, Joan Manuel Rodriguez-Diaz
Summary: The considerable amount of produced water discharged by the oil industry can cause environmental imbalance due to its harmful components. This study investigated the adsorption capacity of Zinc Imidazolate Framework-8 (ZIF-8) for crude oil removal from synthetic produced water. ZIF-8 exhibited high crystallinity and thermal stability, and its adsorption process was found to be spontaneous and exothermic.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jennifer Maria Navia Mendoza, Bryan Fernando Rivadeneira Mendoza, Jaime Cevallos Mendoza, Alina M. Balu, Rafael Luque, Luis Angel Zambrano Intriago, Joan Manuel Rodriguez-Diaz
Summary: In this study, a hybrid material MIL-53(Al)@HC was synthesized and demonstrated to have excellent adsorption capability for Ibuprofen sodium salt and Metsulfuron-methyl in a binary system. The hybrid material showed in situ crystal growth capability and could remove >98% of the target substances at extreme conditions. The adsorption kinetics and equilibrium were well described by the pseudo-second order model and the Sips and Freundlich models.
ENVIRONMENTAL RESEARCH
(2024)
Article
Chemistry, Analytical
Felix Mayr, Robert Zimmerleiter, Patricia M. A. Farias, Mateusz Bednorz, Yolanda Salinas, Andre Galembek, Olavo D. F. Cardozo, Dominik Wielend, Dyego Oliveira, Raquel Milani, Tania M. Brito-Silva, Markus Brandstetter, Eduardo Padron-Hernandez, Peter Burgholzer, Andreas Stingl, Markus C. Scharber, Niyazi Serdar Sariciftci
Summary: Surface-enhanced Raman scattering (SERS) is a sensitive and fast technique for chemical trace analysis. This study presents a robust, reproducible, flexible, and cost-effective SERS substrate for sensitive detection in the near-infrared (NIR) range. The substrate can withstand high laser power while maintaining a linear signal response, enabling high signal enhancement potential.
ANALYTICAL SCIENCE ADVANCES
(2023)