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Drug: Tetracycline
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Total 6239 results found since Jan 2013.
Adsorption properties and mechanisms of methylene blue and tetracycline by nano-silica biochar composites activated by KOH
In this study, a novel nano-silica-biochar composite (NSBC) was synthesized based on corn straw as raw material, by a combination of ball milling, pyrolysis and KOH activation. The modified biochar with rough surface had higher specific surface area (117.67-132.82 m2/g), developed pore structure (0.12-0.15 cm3/g) and abundant surface functional groups (-OH, -COOH, Si-O and aromatic CC were dominated). These provided abundant active sites for the adsorption of pollutants. The adsorption capacities of NSBC for Methylene Blue (MB) and Tetracycline (TC) were both higher than that of other similar products, the maximum adsorpti...
Source: Chemosphere - July 3, 2023 Category: Chemistry Authors: Juan Liu Qianji Lin Jida Gao Xuping Jia Mengfan Cai Qiaochu Liang Source Type: research
The presence of copper ions alters tetracycline removal pathway in aerobic granular sludge: Performance and mechanism
This study investigated the removal characteristics of tetracycline (TC) in the presence of copper ions (Cu2+) in aerobic granular sludge by analyzing the TC removal pathway, composition and functional group changes of extracellular polymeric substances (EPS), and microbial community structure. The TC removal pathway changed from cell biosorption to EPS biosorption, and the microbial degradation rate of TC was reduced by 21.37% in the presence of Cu2+. Cu2+ and TC induced enrichment of denitrifying bacteria and EPS-producing bacteria by regulating the expression of signaling molecules and amino acid synthesis genes to incr...
Source: Bioresource Technology - July 3, 2023 Category: Biotechnology Authors: Lilong Yan Mingyue Yin Yue Jiao Yaoqi Zheng Luotinng Sun Mengya Yang Jingwen Miao Xu Song Nan Sun Source Type: research
Illustration on phenotypic and genotypic characteristics of typical multi-antibiotic resistant bacteria in aquatic environments through complete genomes and comparative genomics
In this study, a multi-resistant superbug (TR3) was screened by the selective pressure of multi-antibiotics from the activated sludge of the aeration tanks of urban wastewater treatment plants (WWTPs) in 5 different regions of China. Based on the 16 S rDNA sequence alignment it was found that the sequence similarity between strain TR3 and Aeromonas was as high as 99.50%. The genome-wide sequence showed that the base content of the chromosome of strain TR3 is 4,521,851 bp. It contains a plasmid with a length of 9182 bp. All antibiotic resistance genes (ARGs) of strain TR3 are located on the chromosome, which means that it h...
Source: Chemosphere - July 2, 2023 Category: Chemistry Authors: Chunli Wan Rui Tang Liyan Deng Liya Fu Panxin Wang Xiang Liu Changyong Wu Source Type: research
Effective sequestration of tetracycline from aqueous streams using metal-free chemically functionalized porous g-C < sub > 3 < /sub > N < sub > 4 < /sub >
This study provides more insights into the reclamation of tetracycline using a highly efficient metal-free photocatalyst.PMID:37394052 | DOI:10.1016/j.envpol.2023.122057
Source: Environmental Pollution - July 2, 2023 Category: Environmental Health Authors: Akash Balakrishnan Mahendra Chinthala Source Type: research
Activation of persulfate by heterogeneous nano zero-valent iron/halloysite nanotubes: reaction behavior, mechanism, and implication for tetracycline hydrochloride degradation
Environ Sci Pollut Res Int. 2023 Jul 2. doi: 10.1007/s11356-023-28354-7. Online ahead of print.ABSTRACTA novel composite (nZVI/HNTs) was prepared via incorporating nano zero-valent iron (nZVI) on halloysite nanotubes (HNTs) for degrading tetracycline hydrochloride (TCH) with existence of persulfate (PS). The adsorption process of nZVI/HNTs to TCH conformed to the Freundlich isotherm model and pseudo-second-order kinetic model, and its maximum adsorption capacity was 76.62 mg·g-1. Furthermore, the nZVI/HNTs + PS system exhibited satisfactory degradation efficiency (84.21%) for TCH, and stable nZVI/HNTs (Fe leaching < 0....
Source: Environmental Science and Pollution Research International - July 2, 2023 Category: Environmental Health Authors: Liangbo Zhang Yunhong Zhu Yahui Shi Yanqi Wang Jingyi Li Baohui Cui Source Type: research
Illustration on phenotypic and genotypic characteristics of typical multi-antibiotic resistant bacteria in aquatic environments through complete genomes and comparative genomics
In this study, a multi-resistant superbug (TR3) was screened by the selective pressure of multi-antibiotics from the activated sludge of the aeration tanks of urban wastewater treatment plants (WWTPs) in 5 different regions of China. Based on the 16 S rDNA sequence alignment it was found that the sequence similarity between strain TR3 and Aeromonas was as high as 99.50%. The genome-wide sequence showed that the base content of the chromosome of strain TR3 is 4,521,851 bp. It contains a plasmid with a length of 9182 bp. All antibiotic resistance genes (ARGs) of strain TR3 are located on the chromosome, which means that it h...
Source: Chemosphere - July 2, 2023 Category: Chemistry Authors: Chunli Wan Rui Tang Liyan Deng Liya Fu Panxin Wang Xiang Liu Changyong Wu Source Type: research
Visible-light-driven AgI/Bi4O5I2 S-scheme heterojunction for efficient tetracycline hydrochloride removal: Mechanism and degradation pathway
Chemosphere. 2023 Jun 29:139326. doi: 10.1016/j.chemosphere.2023.139326. Online ahead of print.ABSTRACTThe existence of excessive tetracycline hydrochloride (TCH) in the ecological environment has seriously threatened human health, so there is an urgent need to develop a high-performance photocatalyst that can efficiently and greenly remove TCH. Currently, most photocatalysts have the problems of fast recombination of photogenerated charge carriers and low degradation efficiency. Herein, S-scheme AgI/Bi4O5I2 (AB) heterojunctions was constructed for TCH removal. Compared with the single component, the apparent kinetic const...
Source: Chemosphere - July 1, 2023 Category: Chemistry Authors: Qian Fei Hongfei Yin Chunyu Yuan Yujin Zhang Qiuyu Zhao Huijun Lv Yongcai Zhang Yongzheng Zhang Source Type: research
New insight into the concentration-dependent removal of multiple antibiotics by Chlorella sorokiniana
Bioresour Technol. 2023 Jun 29:129409. doi: 10.1016/j.biortech.2023.129409. Online ahead of print.ABSTRACTMicroalgae have attracted increasing attention as an environmentally friendly treatment for antibiotics. However, the effect of antibiotic concentration on the removal ability of microalgae with the underlying mechanisms remains unclear. Thus, this work investigates the removal of tetracycline (TET), sulfathiazole (STZ), and ciprofloxacin (CIP) at different concentrations using Chlorella sorokiniana. The results indicate that microalgae have a concentration-dependent effect on antibiotic removal; however, the removal t...
Source: Bioresource Technology - July 1, 2023 Category: Biotechnology Authors: Yuhao Chu Shengnan Li Peng Xie Xi Chen Xue Li Shih-Hsin Ho Source Type: research
Efficacy and safety of modified tetracycline dosing in a quadruple therapy for < em > Helicobacter pylori < /em > : A retrospective single center study
CONCLUSION: In a real-world experience, modified tetracycline dosing as part of tetracycline and furazolidone quadruple therapy for 14 d demonstrated high efficacy, comparable to standard tetracycline dose regimens, with a favorable safety profile.PMID:37389237 | PMC:PMC10303514 | DOI:10.3748/wjg.v29.i22.3508
Source: World Journal of Gastroenterology : WJG - June 30, 2023 Category: Gastroenterology Authors: Ying-Chao Sun Meng-Jia Zhu Xue-Qin Chen Lei Yue Yi-Ru Zhao Xin-Jie Wang John J Kim Qin Du Wei-Ling Hu Source Type: research
Efficiently catalytic degradation of tetracycline via persulfate activation with plant-based biochars: Insight into endogenous mineral self-template effect and pyrolysis catalysis
This study provides a new insight for revealing the intrinsic mechanism of mineral elements enhancing the active surface structures and catalytic properties of plant-based biochars derived from distinct feedstocks.PMID:37391085 | DOI:10.1016/j.chemosphere.2023.139309
Source: Chemosphere - June 30, 2023 Category: Chemistry Authors: Shaoyi Zeng Kunquan Li Xia Xu Jiayong Zhang Yan Xue Source Type: research
Identification of Two Novel Carbapenemase-Encoding Hybrid Plasmids Harboring < em > bla < /em > < sub > NDM-5 < /sub > and < em > bla < /em > < sub > KPC-2 < /sub > in a Clinical ST11-KL47 < em > Klebsiella pneumoniae < /em >
CONCLUSION: The resistance gene blaNDM-5 located on a region organized as IS26-blaNDM-5-ble-trpF-dsbD-ISCR1-sul1-aadA2-dfrA12-IntI1-IS26 was carried by a phage-plasmid. We described a clinical CRKP co-producing KPC-2 and NDM-5 and emphasized an urgent need to control their further spread.PMID:37388189 | PMC:PMC10305773 | DOI:10.2147/IDR.S408824
Source: Cancer Control - June 30, 2023 Category: Cancer & Oncology Authors: Weiqiang Xiao Xiaokun Wang Yuanye Qu Mingyue Sun Yanmin Chang Wenjiao Li Yong Shen Xiufang Shi Min Jing Qingxia Xu Source Type: research
