Effect of dissolved organic matter on adsorption of sediments to Oxytetracycline: An insight from zeta potential and DLVO theory

Shen, Siqi; Yang, Sen; Jiang, Qianli; Luo, Mengya; Yu, Li; Yang, Chenxi; Zhang, Dan

doi:10.1007/s11356-019-06787-3

Cited by 21 publications

(7 citation statements)

References 59 publications

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“…Given that the ionic strength of the solution has a significant effect on the ζ-potential of the colloidal particles, with the increase of the BR content, the ionic strength of the solution increased. Consequently, the thickness of the electric double layer (Debye length) reduced, and the surface charge density of the Stern layer (σm) changed . These changes would decrease the electrostatic repulsion forces between BR nanoparticles, resulting in a lower energy barrier against the aggregation and collision of BR nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, the thickness of the electric double layer (Debye length) reduced, and the surface charge density of the Stern layer (σm) changed. 40 These changes would decrease the electrostatic repulsion forces between BR nanoparticles, resulting in a lower energy barrier against the aggregation and collision of BR nanoparticles. The functional groups of organic molecules such as hydroxyl, carbonyl, and aromatic ring moieties are in competition between charged BR nanoparticles affecting the decrease of adsorption, specifically at low BR concentrations.…”

Section: Characterization Of Hybrid Pda/br Adhesivesmentioning

confidence: 99%

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Multifunctional Bioinspired Bredigite-Modified Adhesive for Bone Fracture Healing

Moazami

Kharaziha

Emadi

et al. 2023

ACS Appl. Mater. Interfaces

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Despite recent advances in bone adhesives applied for full median sternotomy, the regeneration of bone defects has remained challenging since the healing process is hampered by poor adhesiveness, limited bioactivity, and lack of antibacterial functions. Bioinspired adhesives by marine organisms provide a novel concept to circumvent these problems. Herein, a dual crosslink strategy is employed in designing a multifaceted bioinspired adhesive consisting of a catechol amine-functionalized hyperbranched polymer (polydopamine-co-acrylate, PDA), bredigite (BR) nanoparticles, and Fe 3+ ions. The hybrid adhesives exhibit strong adhesion to various substrates such as poly(methyl methacrylate), glass, bone, and skin tissues through synergy between irreversible covalent and reversible noncovalent cross-linking, depending on the BR content. Noticeably, the adhesion strength of hybrid adhesives containing 2 wt % BR nanoparticles to bone tissues is 2.3 ± 0.8 MPa, which is about 3 times higher than that of pure PDA adhesives. We also demonstrate that these hybrid adhesives not only are bioactive and accelerate in vitro bone-like apatite formation but also exhibit antibacterial properties against Staphylococcus aureus, depending on the BR concentration. Furthermore, the superior cellular responses in contact with hybrid adhesives, including improved human osteosarcoma MG63 cell spreading and osteogenic differentiation, are achieved owing to the appropriate ion release and flexibility of the cross-linked double-network adhesive. In summary, multifunctional hybrid PDA/BR adhesives with appreciable osteoconductive, mechanical, and antibacterial properties represent the potential applications for median sternotomy surgery as a bone tissue adhesive.

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Section: Resultsmentioning

confidence: 99%

Section: Characterization Of Hybrid Pda/br Adhesivesmentioning

confidence: 99%

Multifunctional Bioinspired Bredigite-Modified Adhesive for Bone Fracture Healing

Moazami

Kharaziha

Emadi

et al. 2023

ACS Appl. Mater. Interfaces

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“…Preparation of standard solution [36]: 10 mg of various antibiotic standards were accurately weighed and dissolved in a 10 mL brown volumetric flask. Tetracycline and sulfonamides antibiotics were dissolved in methanol, and fluoroquinolone antibiotics were dissolved in 0.03 mol/L NaOH and stored in a refrigerator at 4ºC.…”

Section: Determination Of Antibioticsmentioning

confidence: 99%

“…For antibiotics, they mainly focused on the distribution rules, the selection of transport simulation tracers, migration rules, the influence of temperature, and microorganisms [18,[31][32][33]. But less attention was paid to the attenuation behavior of antibiotics in the hyporheic zone, such as adsorption and hydrolysis, these behaviors play an important role in the decay of antibiotics [18,[34][35][36][37]. Therefore, it is important to study the adsorption and hydrolysis behavior of antibiotics to predict their environmental persistence in the hyporheic zone.…”

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confidence: 99%

Adsorption and Hydrolysis Characteristics of Antibiotics in the Hyporheic Zone of Zaohe-Weihe River, China

Xie¹,

Yang²,

Wang³

et al. 2022

Pol. J. Environ. Stud.

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Antibiotics are widely used in medicine, agriculture and aquaculture [1][2][3]. Most antibiotics (about 25%-75%) cannot be completely metabolized and degraded by organisms, and are released into the environment in the form of parent or intermediate products [4,5]. These antibiotics will pose a great threat to the survival of humans and animals [6,7], so it is crucial to control the content of antibiotics in the environment. Antibiotics that enter the environment will be attenuated by biological and abiotic interactions [8][9][10]. Since antibiotics could inhibit or kill microorganisms at low concentrations [11][12][13], the biological attenuation effect that depends on the action of microorganisms

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“…Many factors, such as extensive use, continuous discharge and incomplete degradation, have caused antibiotics to be widely distributed in a variety of environmental media (Hernando et al 2006, Shen et al 2020. Excessive dependence on antibiotics to control bacteria is considered to be related to the evolution of antibiotic resistance.…”

Section: Introductionmentioning

confidence: 99%

Spatial distribution of antibiotic resistance genes of the Zaohe–Weihe Rivers, China: exerting a bottleneck in the hyporheic zone

Shen

Yang

Zhang

et al. 2022

Environ Sci Pollut Res

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The hyporheic zone (HZ) is an active biogeochemical region where groundwater and surface water mix and a potential reservoir for antibiotic resistance genes (ARGs). In this paper, the relative abundance and spatial distribution of ARGs in the HZ media was investigated, taking into consideration both the 5 speciation of 6 metals and the local characteristics. The samples of surface water, groundwater and sediment were collected from Zaohe-Weihe rivers of Xi'an City, which is representative cities with characteristics of the north-west region region of China. Of 271 ARGs associated with 9 antibiotics, 228 were detected, with a total detection rate of 84%. Sulfonamide and aminoglycoside ARGs were the dominant types of ARGs. The top 6 ARGs and mobile genetic elements (MGEs) in terms of abundance were tnpA-04, cepA, sul1, aadA2-03, sul2 and intI1. The results of principal component analysis (PCA) showed that the distribution characteristics of ARGs were not associated with the sampling sites but with the environmental medias. Similarity in the water phases and signi cant differences in the water and sediment phases were found. The redundancy analysis (RDA) identi ed the key factors controlling ARG pollution, including dissolved oxygen (DO) in surface water, total nitrogen (TN) in groundwater and total organic carbon (TOC) in sediments. In terms of the speciation of heavy metals, we further revealed the promotion effect between ARGs and heavy metals, especially the residual fraction of Ni. In terms of horizontal transfer mechanism, ARGs were signi cantly correlated with tnpA-03 in water phase, and were signi cantly correlated with tnpA-04 in sediment. In the three media, intI1 and ARGs, all show a signi cant correlation. These ndings showed that hyporheic zone exerted a bottleneck effect on the distribution and transfer of ARGs.

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Effect of dissolved organic matter on adsorption of sediments to Oxytetracycline: An insight from zeta potential and DLVO theory

Cited by 21 publications

References 59 publications

Multifunctional Bioinspired Bredigite-Modified Adhesive for Bone Fracture Healing

Multifunctional Bioinspired Bredigite-Modified Adhesive for Bone Fracture Healing

Adsorption and Hydrolysis Characteristics of Antibiotics in the Hyporheic Zone of Zaohe-Weihe River, China

Spatial distribution of antibiotic resistance genes of the Zaohe–Weihe Rivers, China: exerting a bottleneck in the hyporheic zone

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