Article
Environmental Sciences
Denisse Alejandra Morales-Serrato, Jonatan Torres-Perez, Alvaro de Jesus Ruiz-Baltazar, Simon Yobanny Reyes-Lopez
Summary: This study successfully removed oxytetracycline (OTC) from water using modified carbon nanotubes and quartz-based natural aluminosilicate as adsorbent materials. The experimental results showed that carbon nanotubes and carbon nanotubes modified with zinc nanoparticles had high adsorption capacities, while quartz-based natural aluminosilicate modified with zinc nanoparticles had lower adsorption capacity.
WATER AIR AND SOIL POLLUTION
(2022)
Review
Green & Sustainable Science & Technology
G. A. Tochetto, L. Simao, D. de Oliveira, D. Hotza, A. P. S. Immich
Summary: This article provides a systematic review of the synthesis, characterization, and application of geopolymers in dye adsorption, covering material sources, preparation methods, basic characteristics, application effects, desorption, and regeneration mechanisms. It explores gaps to be filled, challenges to be overcome, and prospects to guide the development of more competitive geopolymers as adsorbents.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Chemistry, Multidisciplinary
Hyun June Choi, Donghui Jo, Jung Gi Min, Suk Bong Hong
Summary: The CO2 adsorption behavior of various alkali cation-exchanged forms of merlinoite zeolites with Si/Al=2.3 and 3.8 at 25-75 degrees C and 0-1.0 bar is studied. It is found that different forms of extraframework cations in MER zeolites exhibit different CO2 adsorption characteristics, indicating a cooperative cation gating-breathing mechanism.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Biochemistry & Molecular Biology
Hanjun Zhou, Guangjia Jiao, Xianzhen Li, Chunli Gao, Yiru Zhang, Dana Hashan, Jing Liu, Diao She
Summary: In this study, a mesoporous adsorbent with P-O/P--O bonds was prepared from industrial alkali lignin for oxytetracycline (OTC) removal. The adsorption capacity was three times higher than that of the microporous adsorbent. The rich mesoporous structure of the adsorbent provided adsorption channels and forces for OTC removal, and it showed high selectivity for competing cations in water. The efficient removal rate and excellent reusability demonstrated the potential of this adsorbent for industrial applications, contributing to antibiotic removal and alkali lignin waste recycling.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Environmental Sciences
Bin Wang, Jing Lin, Qicheng Hu, Fuyang Huang, Yan Huang, Weiguo Tu, Qingsong Chen, Sen Li
Summary: Subalpine meadow soil in the Zoige Plateau is a unique soil type with high moisture and humus content, but it is susceptible to contamination by oxytetracycline and copper. Laboratory studies showed that the adsorption of oxytetracycline in the soil had two phases and was influenced by temperature and pH, and the presence of copper enhanced the adsorption. Importantly, the humus in the soil played a significant role in the adsorption of oxytetracycline. These findings provide valuable insights for soil remediation and environmental health risk assessment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
P. Sirajudheen, Perumal Karthikeyan, Sivakumar Vigneshwaran, M. C. Basheer, Sankaran Meenakshi
Summary: The alginate reinforced reduced graphene oxide@hydroxyapatite (rGO@HAP-Alg) hybrids were effectively used for the removal of different kinds of azo dyes from aqueous solution. The adsorption process was endothermic and spontaneous, pH-dependent with maximum dye removal at pH 6-7, and the hybrids showed reusability and stability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Engineering, Environmental
Shanshan Chen, Zhongyang Zang, Shusheng Zhang, Gangfeng Ouyang, Runping Han
Summary: In this study, a nanocomposite of MIL-100(Fe) and multi-walled carbon nanotubes (MIL-100(Fe)-CNTs) was prepared and showed higher adsorption capacity for Oxytetracycline compared to MIL-100(Fe). The adsorption process was endothermic and spontaneous, with ion exchange identified as the main mechanism. The nanocomposite shows promise for effectively removing OTC from solution.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Environmental Sciences
Weili Jiang, Yanrong Cai, Di Liu, Xuechun Yu, Qiong Wang
Summary: In this study, modified biochar was used to remove oxytetracycline from wastewater. The results showed that the modified biochar had a high adsorption capacity and the adsorption process was spontaneous, endothermic, and entropic decreasing.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Thi Hai Yen Doan, Thu Ha Hoang, Van Anh, Duc Nam Vu, The Ninh Vu, Arun Lal Srivastav, Tien Duc Pham
Summary: The adsorption and transformation of tetracyclines on SDS surfactant-modified alpha-Al2O3 particles were investigated. The modified adsorbents showed significantly enhanced adsorption compared to the unmodified adsorbents. Optimal conditions were determined to be pH 4, NaCl 1 mM, 180 min contact time, and adsorbent dosage of 25 mg.mL-1. The maximum adsorption capacities were 320, 85, and 91 mg.g-1 for TC, OTC, and CTC, respectively. The SDS-modified alpha-Al2O3 particles could be effective adsorbents for removing tetracyclines from aqueous solutions.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Hyun June Choi, Elliott L. Bruce, Kevin S. Kencana, Jingeon Hong, Paul A. Wright, Suk Bong Hong
Summary: This study found that the isotherms of CO2 adsorption on cesium-exchanged phillipsite zeolite exhibit a rectilinear step shape. Structural analysis revealed that this behavior is caused by the high concentration and large size of cesium ions in the dehydrated zeolite, which allows the relaxation of the framework and enables the filling of pores with CO2 over a narrow range of pressure. This highly cooperative phenomenon has not been observed in other zeolites.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Green & Sustainable Science & Technology
Xuan Guo, Lin Zhu, Xin Xu, Maoting Ma, Guoyuan Zou, Dan Wei
Summary: This study explored the competitive or synergetic adsorption mechanism of phosphate and antibiotics using chestnut shell-derived biochar. Modified biochar containing Fe and Mn ions showed high adsorption capacities for phosphate and oxytetracycline. The adsorption processes followed the pseudo-second-order kinetic model, with phosphate fitting better to the Langmuir isotherm and oxytetracycline fitting better to the Freundlich isotherm. Solution pH and cation strength significantly influenced the adsorption.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Engineering, Chemical
Gulsah Baskan, Unsal Acikel, Menderes Levent
Summary: Iron oxides and ferrite-supported zeolites were used for the removal of Oxytetracycline hydrochloride (OTC-HCL) from wastewater. The adsorption behavior of OTC-HCL on zeolite/Fe3O4 particles was studied, and the optimum adsorption parameters were determined. The adsorption isotherms and kinetic models were analyzed, showing that Langmuir isotherm and pseudo second order kinetic models best fit the experimental data. The maximum adsorption capacity of zeolite/Fe3O4 was found to be 83.33 mg/g at 323 K.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Yunting Wang, Kanji Tsuru, Kunio Ishikawa, Taishi Yokoi, Masakazu Kawashita
Summary: The carbonate content of CO3-HAp influences the adsorption behavior of fibronectin (Fn) and its specific adsorption, which contributes to the high osteoconductivity of CO3-HAp. These findings may lead to the development of bone substitutes with high osteoconductivity, although they do not directly affect the clinical application of CO3-HAp.
CERAMICS INTERNATIONAL
(2021)
Article
Agricultural Engineering
Hongkui Zhang, Xue Song, Jie Zhang, Yongde Liu, Hailiang Zhao, Junkai Hu, Jihong Zhao
Summary: In this study, biochar was prepared using sycamore flocs, which pose environmental and health problems. The obtained biochar, SFB2-900, showed strong adsorption capacity for oxytetracycline hydrochloride (OTC-HCl). The study also identified the mechanism of OTC-HCl removal and demonstrated the potential of utilizing waste biomass for the preparation of efficient adsorbents for antibiotics.
BIORESOURCE TECHNOLOGY
(2022)
Article
Environmental Sciences
Zaiming Chen, Jiahao Shen, Xiaoqin Xu, Huajun Feng, Meizhen Wang
Summary: Adsorption is an attractive approach to reduce the levels of bioaccessible antibiotics, heavy metals, and antibiotic resistance genes in soil. A wet-state silicon-rich biochar/ferrihydrite composite was shown to have strong adsorption capacity for oxytetracycline, Cu2+, and antibiotic resistance plasmid pBR322, thereby inhibiting the spread of antibiotic resistance genes.
Article
Environmental Sciences
K. V. Rodriguez-Zapien, J. Torres-Perez, S. Y. Reyes-Lopez
Summary: The study investigated the sorption of tartrazine by construction waste homoionized with sodium and modified with a cationic surfactant. The results showed that the modified quartz exhibited good adsorption capacity for tartrazine. Various factors such as contact time, pH, and temperature were evaluated during the sorption process, and different kinetic and isotherm models were used to analyze the sorption behavior and capacity.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Environmental Sciences
Denisse Alejandra Morales-Serrato, Jonatan Torres-Perez, Alvaro de Jesus Ruiz-Baltazar, Simon Yobanny Reyes-Lopez
Summary: This study successfully removed oxytetracycline (OTC) from water using modified carbon nanotubes and quartz-based natural aluminosilicate as adsorbent materials. The experimental results showed that carbon nanotubes and carbon nanotubes modified with zinc nanoparticles had high adsorption capacities, while quartz-based natural aluminosilicate modified with zinc nanoparticles had lower adsorption capacity.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Chemistry, Applied
Jonatan Torres-Perez, Nahum Medellin-Castillo, Simon Yobanny Reyes-Lopez
Summary: In this study, alpha-Alumina (Alu) and gamma-Alu spheres were synthesized and used for the adsorption removal of Allura Red dye. The results showed that the gamma-Alu spheres exhibited stable behavior in consecutive sorption cycles and had the potential for efficient removal of the dye, making them a novel and sustainable material for advanced wastewater treatment.
ADSORPTION SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Applied
Alberto A. Escobar-Puentes, Simon Yobanny Reyes-Lopez, Alvaro de Jesus Ruiz Baltazar, Veronica Lopez-Teros, Abraham Wall-Medrano
Summary: This study investigated the molecular interactions between beta-carotene and sweet potato starch using a bleaching-restitution strategy. The results showed that the interaction between beta-carotene and starch primarily occurred through hydrogen bonding and CH-π stacking, which altered the molecular order and crystallinity of the starch and increased its resistance to digestion.
FOOD HYDROCOLLOIDS
(2022)
Article
Chemistry, Inorganic & Nuclear
Pamela Nair Silva-Holguin, Alvaro de Jesus Ruiz-Baltazar, Simon Yobanny Reyes-Lopez
Summary: Due to bacterial resistance, a new generation of biomaterials with antibacterial properties has been developed. In this study, an alternative ceramic composite, alumina-hydroxyapatite-copper spheres, was successfully generated. The spheres were characterized and confirmed to have a stable structure with antimicrobial properties. Testing showed that the spheres exhibited antibacterial activity against both Gram positive and Gram negative bacteria, making them a promising material for bacterial inhibition.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Daniela Solorio-Grajeda, Jonatan Torres-Perez, Nahum Medellin-Castillo, Simon Yobanny Reyes-Lopez
Summary: The development of TiO2SiO2 ceramic fibers doped with copper microstructures was conducted to exploit the synergistic effect of both materials and evaluate their signal amplification ability in Raman spectroscopy. CuO, Cu2O, and Cu(OH)2 copper species were identified through characterization using infrared spectroscopy and X-ray diffraction. Scanning electron microscopy revealed the presence of spherical, dendritic, and needle-like morphologies on the fibers, corresponding to copper species. The materials exhibited SERS amplification factors of 20.23 and 9.51 for TiO2SiO2 fibers and TiO2SiO2Cu doped by 0.75 min, respectively, at the 1373 cm-1 band of a 1 x 10-4 M violet crystal solution.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Engineering, Biomedical
Perla Alejandra Hernandez-Venegas, Rita Elizabeth Martinez-Martinez, Erasto Armando Zaragoza-Contreras, Ruben Abraham Dominguez-Perez, Simon Yobanny Reyes-Lopez, Alejandro Donohue-Cornejo, Juan Carlos Cuevas-Gonzalez, Nelly Molina-Frechero, Leon Francisco Espinosa-Cristobal
Summary: This study reports the bactericidal activity of silver nanoparticles (AgNP) against oral biofilms related to periodontal disease (PD). The results showed that AgNP exhibited antimicrobial activities for all oral samples, with smaller AgNP showing significantly increased bactericidal effects. Biofilms from PD subjects were found to have more resistant bacterial species. Therefore, AgNP can be considered as an alternative therapy for the control and treatment of PD.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Engineering, Biomedical
Alvaro de Jesus Ruiz-Baltazar, Harald Norbert Bohnel, Daniel Larranaga Ordaz, Jose Antonio Cervantes-Chavez, Nestor Mendez-Lozano, Simon Yobanny Reyes-Lopez
Summary: This study proposes a sonochemical biosynthesis method for preparing magnetoplasmonic nanostructures of Fe3O4 decorated with Au and Ag. The magnetoplasmonic systems were characterized structurally and magnetically, revealing the primary phase of magnetite structures and the presence of noble metals Au and Ag in a structure-decorated type. Magnetic measurements showed the superparamagnetic behavior of the Fe3O4-Ag and Fe3O4-Au nanostructures. Additionally, antibacterial and antifungal assays were conducted to evaluate their potential properties and future applications in biomedicine.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Materials Science, Multidisciplinary
M. F. Ramirez-Ayala, A. Lobo Guerrero, A. M. Herrera-Gonzalez, T. J. Perez-Juache, R. Lopez-Juarez, J. T. Elizalde-Galindo, V. E. Salazar-Munoz, S. A. Palomares-Sanchez, S. Y. Reyes-Lopez
Summary: This study investigates the effects of neodymium on the microstructural, magnetic, and structural properties of strontium hexaferrite. Neodymium is partially incorporated into the hexaferrite crystal structure, forming neodymium orthoferrite as a second phase, which significantly impacts the magnetic properties. The temperature and neodymium content were varied to analyze their effects on the hexaferrite properties. X-ray diffraction, Rietveld refinement, vibrant sample magnetometry, and electron microscopy were used to evaluate the behavior, structural properties, magnetic properties, and microstructural characteristics. The incorporation of neodymium and magnetic interactions between the hexaferrite and neodymium orthoferrite resulted in a 35% increase in the maximum energy product compared to neodymium-free hexaferrite.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Daniela Solorio-Grajeda, Alvaro de Jesus Ruiz-Baltazar, Manuela Alejandra Zalapa-Garibay, Erasto Armando Zaragoza-Contreras, Simon Yobanny Reyes-Lopez
Summary: The presence of antibiotic residues, such as oxytetracycline (OTC), in wastewater effluents has created the need for monitoring trace concentrations to combat bacterial resistance. Surface Enhanced Raman Spectroscopy (SERS) is a promising technique for detecting and identifying low concentrations (ng/L) without sample preparation. A fibrillar support, Titania-Silica doped with silver particles, was developed in the SERS technique for detecting OTC. The doped ceramic fibers showed the presence of silver nanoparticles ranging from 30 nm to dendritic structures larger than 1 μm, depending on the synthesis conditions. The support doped with Ag at 19 V for 30 s exhibited the highest amplification factor (AF) of 44 for the OTC band at 1278 cm-1.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Review
Chemistry, Analytical
Claudia Ivone Pinon-Balderrama, Cesar Leyva-Porras, Alain Salvador Conejo-Davila, Anayansi Estrada-Monje, Maria Cristina Maldonado-Orozco, Simon Yobanny Reyes-Lopez, Erasto Armando Zaragoza-Contreras
Summary: The quantification of biomarkers in technology is of great importance, with applications in medical diagnostics, drug delivery, and disease prevention and control strategies. This review presents the advances in non-enzymatic electrochemical detection of bio-analytes using ABO3 perovskite form. The findings suggest that these materials have potential for improving the accuracy and response of biomarker detection systems.
Article
Chemistry, Multidisciplinary
Pamela Nair Silva-Holguin, Nahum A. Medellin-Castillo, E. Armando Zaragoza-Contreras, Simon Yobanny Reyes-Lopez
Summary: Heavy metals can promote the development and proliferation of antibiotic-resistant bacteria through coselection. The presence of heavy metals in water represents a threat to the environment and public health, requiring efficient treatment processes and materials for their removal.
Article
Medicine, General & Internal
Rosa Amalia Nafarrate-Valdez, Rita Elizabeth Martinez-Martinez, Erasto Armando Zaragoza-Contreras, Jose Luis Ayala-Herrera, Ruben Abraham Dominguez-Perez, Simon Yobanny Reyes-Lopez, Alejandro Donohue-Cornejo, Juan Carlos Cuevas-Gonzalez, Juan Pablo Loyola-Rodriguez, Leon Francisco Espinosa-Cristobal
Summary: The study suggests that silver nanoparticles exhibit good anti-adherence and antimicrobial properties against S. mutans serotypes c and k, making them potentially useful for preventing white spot lesions during conventional orthodontic treatments and other systemic diseases.
MEDICINA-LITHUANIA
(2022)