CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Yuefei Li,Jiaqi Hou,Dong Wang,Junhao Ma,Weikai Sun,Mingxiao Li,Zhihao Sun,Yulin Liu,Guocheng Liu,Qinghua Yan,Qianwen Wang,Beidou Xi,Huiling Liu,Yanjun Xin
The neomycin fermentation residues (NFR) are a solid waste during neomycin production, possessing high recycling value due to their rich organic content. However, the environmentally friendly use of NFR was hindered by its rigid matrix structure and residual neomycin. In this study, the effect of temperature on the structure and bioresource properties of NFR were investigated. Meanwhile, the effect of temperature on the degradation of residual neomycin, the toxicity of neomycin degradation products, and the safety of NFR were assessed. The results indicated that the content of soluble organic matter was increased by appropriate temperature treatment through the disruption of the rigid matrix structure of the NFR. However, excessively high temperatures led to the mineralization of organic matter. Simultaneously, appropriate temperature facilitated the transformation of organic substances to humic-like acids. The neomycin in NFR was effectively degraded with the increasing temperature, and the degradation efficiency exceeded 99 % under 220 °C for 120 min. In addition, the applicability of using appropriate temperatures to degrade antibiotics in similar other AFR has been demonstrated. Neomycin degradation occurred primarily through the cleavage of the glycosidic bond and ring ether, the detachment of the amino group, and the addition of hydroxyl groups. Meanwhile, the developmental toxicity and acute toxicity of neomycin were effectively mitigated by the appropriate temperature, and a significant reduction in ecotoxicity was observed. As a result, optimum temperature treatment proved to be an efficient method for the secure recycling of NFR.
研究领域:
环境科学
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微生物学
·
药理学
✓ 已验证
产品关联
DOI
高影响因子
COLLOIDS AND SURFACES B-BIOINTERFACES
·
2019
·
IF 3.973
Yahui Zhang,Yi Yuan,Wei Chen,Jie Fan,Hong Lv,Qingsheng Wu
The abuse of antibiotics has led to widespread antimicrobial resistance (AMR) and environmental pollution. In order to solve these problems, a lot of studies have been carried out mainly focusing on the modification and recombination of organic reagents, but bacteria are still easy to adapt to it, so they cannot be thoroughly solved. Here, we present an integrated pollution-free synergistic antibacterial nanotechnology using inorganic nano-Cu 2 O, which could not only enhance the efficacy of aminoglycoside antibiotics, but also eliminate their environmental pollution by photocatalytic degradation. It was found that Cu 2 O showed significantly synergistic antibacterial effect (1+1>2) when combined with aminoglycoside antibiotics against Escherichia coli . The inhibition zone area increased by 59.0% when Cu 2 O combined with neomycin. This reduces dosage and the risk of AMR, and does not pollute the environment after degradation. Next, to explore the synergistic mechanisms, we have studied the interaction of antibiotics with nanoparticles, as well as the interaction of antibacterial agents with bacteria. At last, we believe that the destruction of cell walls by Cu 2 O facilitates the entry of antibiotics into cells is the reason for their synergy.
研究领域:
微生物学
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环境科学
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纳米技术
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药理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD AND AGRICULTURAL IMMUNOLOGY
·
2022
·
IF 3.268
Kemeng Qin,Mingyue Ding,Chensi Zhang,Xijie Zhang,Yexuan Mao,Meng Dang,Zizhe Li,Youyi Wang,Shaohui Zhang,Yuhang Sun,Zhibin Zhang,Gaiming Zhao,Yu Li,Qian Li,Xiya Zhang
To improve the detection sensitivity of neomycin (NEO) in milk, we produced a sensitive monoclonal antibody (mAb) against NEO and developed a lateral flow immunoassay based on amorphous carbon nanoparticles (ACNPs-LFA). First, we conjugated NEO to carrier protein to prepare mAbs. We obtained six mAbs: mAb 1C6, mAb 1D3, mAb 2D3, mAb 4D5, mAb 5D1, and mAb 5H1. We characterised the mAbs by indirect competitive enzyme-linked immunosorbent assay and selected the most sensitive mAb based on the half-maximal inhibitory concentration (IC50). We selected mAb 4D5 (IC50 = 0.15 ng/mL) for the development of LFA. MAb 4D5 was labelled with ACNPs (ACNPs-mAb 4D5) by electrostatic absorption. Under optimised conditions, 5.4 μg mAb 4D5 coupling with 1 mL ACNPs, NEO-OVA at concentration of 80 μg/mL, 3 μL ACNPs-mAb 4D5 were used to develop LFA. The cut-off value was 8 ng/mL. Therefore, our developed ACNPs-LFA is suitable for on-site detection of NEO residues.
研究领域:
食品安全
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免疫学
·
分析化学
✓ 已验证
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yinghua Zhu,Youduo Zhao,Jingjing Deng,Tianshu Zhou
The widespread application of neomycin (NEO) has raised pollution problem caused by the accumulation of its residues, which poses potential risk to human health and ecological safety. Therefore, the development of sensitive and reliable approaches is crucial for detecting and monitoring low levels of NEO in complex samples. In this study, an innovative spherical nucleic acid (SNA) based sensor was designed for the selective detection of NEO. The colorimetric response was attributed to hydrogen bonding, electrostatic interaction, and coordination between the SNA and NEO. Meanwhile, the fluorescence of FAM-labeled SNA was quenched by NEO due to fluorescence resonance energy transfer (FRET) effect. By integrating visual colorimetry and fluorescence analysis, the dual-responsive sensor enabled rapid, selective, and sensitive determination of NEO, with detection limits of 40.0 nM and 3.3 nM, respectively. Furthermore, the SNA exhibited good salt tolerance, maintaining stability without aggregation even in high-salt conditions. The average recoveries for detecting NEO in water samples analysis ranged from 97.6 % to 108.7 %, confirming its reliability and accuracy in practical applications. This work provides an effective strategy for NEO detection and expands the potential applications of SNA in environmental monitoring and pollution control.
研究领域:
生物化学
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环境科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
ARCHIVES OF PHARMACAL RESEARCH
·
2016
·Vol. 39
·期 6
·762-770
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IF 2.49
Wang Nan,Cui Cheng-Bin,Li Chang-Wei
A novel cyclic dipeptide, named penicimutide ( 1 ), and four known cyclic dipeptides, cyclo( l -Val- l -Pro) ( 2 ), cyclo( l -Ile- l -Pro) ( 3 ), cyclo( l -Leu- l -Pro) ( 4 ) and cyclo( l -Phe- l -Pro) ( 5 ), were isolated from a neomycin-resistant mutant of the marine-derived fungus Penicillium
purpurogenum G59. The structure of 1 , including the absolute configuration, was determined by spectroscopic and chemical methods, especially NMR and Marfey’s analysis. An unusual amino acid in 1 , 4,5-didehydro- l -leucine, was found for the first time occurring in nature. HPLC–ESI–MS analysis evidenced that 1 – 3 were produced only in the mutant strain, but 4 and 5 were produced in both the mutant and parental strains, indicating that the introduction of neomycin-resistance in the mutant activated pathways of 1 – 3 biosynthesis that were silent in the parental strain. Compound 1 selectively inhibited HeLa cells (among five tested human cancer cell lines) with an inhibition rate (IR %) of 39.4 % at 100 µg/mL, a similar inhibition intensity to that of the positive control 5-fluorouracil (IR % of 41.4 % at 100 µg/mL against HeLa cells). The present work exemplifies the effectiveness of our previous DMSO-mediated method for introducing drug-resistance in fungi to activate silent biosynthetic pathways to obtain new bioactive compounds.
研究领域:
微生物学
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药物化学
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肿瘤学
✓ 已验证
DOI
PubMed
高影响因子
CHROMATOGRAPHIA
·
2021
·Vol. 84
·期 9
·861-868
·
IF 2.044
Huang Yejing,Han Xiufen,Yu Xiao,Wang Shumei,Zhai Haiyun
A capillary electrophoresis-indirect laser-induced fluorescence detection method was established for neomycin detection in fish. With rhodamine 6G as the background fluorescent substance, neomycin with weak ultraviolet absorption can be detected effectively. The types and concentrations of background buffer, pH, and separation voltage which affected the separation and analysis were all studied. With the optimal conditions, the limit of detection of neomycin was 5.0 ng/g, the recovery of fish samples is between 95.2 and 99.7%, and the relative standard deviation is between 2.7 and 3.6%.
研究领域:
分析化学
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食品科学
✓ 已验证
产品关联
DOI
高影响因子
INORGANICA CHIMICA ACTA
·
2025
·
IF 3.2
Kai-Jie Hu,Wen-Hui Gu,Yan Zhou,Jing Chen
As a new class of porous crystalline materials, hydrogen-organic frameworks (HOFs) have attracted lots of attention in a variety of applications. Despite their potential, hydrogen-bonded organic frameworks (HOFs)-based fluorescent sensing materials have received relatively limited research attention to date. In this work, we successfully constructed a fluorescence sensor based on HOFs constructed by 1,3,6,8-tetrakis[ p -benzoic acid]pyrene, which can display high sensitivity and fluorescence quenching selectivity for neomycin sulphate (NS).
研究领域:
材料科学
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分析化学
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生物医学
✓ 已验证
产品关联
DOI
高影响因子
CHROMATOGRAPHIA
·
2013
·Vol. 76
·期 9
·459-465
·
IF 1.437
Peng Xi-Tian,Feng Yu-Qi,Hu Xi-Zhou,Hu Ding-Jin
In this paper, a novel hydrophilic neomycin-bonded silica (Silica-NC) stationary phase for hydrophilic-interaction chromatography (HILIC) was prepared with cyanuric chloride as coupling agent. The resulting Silica-NC stationary phase was characterized by Fourier transform infrared spectroscopy and elemental analysis to prove the successful immobilization of neomycin on the surface of silica gel. A set of analytes with different properties were selected to investigate the chromatographic characteristics of the Silica-NC stationary phase under HILIC mode. The effects of mobile phase variables such as organic modifier content, ionic strength and pH values on the chromatographic behaviors of testing probes were investigated in detail. The results demonstrated that the Silica-NC phase behaved as a chromatographic packing with hydrophilic-interaction and ionic-interaction. Finally, the effective separations of nucleosides and bases, organic acids, cytokinins and sulfanilamides were achieved on the Silica-NC stationary phase under HILIC mode, indicating the excellent application potential of our developed hydrophilic Silica-NC stationary phase.
研究领域:
分析化学
·
色谱技术
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
·
2018
·
IF 2.441
Mian Zu,Jinan Jiang,Hui Zhao,Shili Zhang,Yan Yan,Shiwei Qiu,Shuolong Yuan,Jiawei Han,Yue Zhang,Weiwei Guo,Shiming Yang
Irreversible hearing loss induced by aminoglycoside in human through local or systemic administration route negatively impacts quality of life. The aim of this work was to develop and validate an analytical method suitable for the detection and quantification of neomycin in cochlear perilymph of guinea pig after local application. The SupelMIP SPE column was used for the pre-treatment of matrix. Chromatographic separation was conducted by a reversed phase ODS column (100 × 2.1 mm, 3 μm) at 40 °C in gradient mode with 0.2‰ (v/v) HFBA in water and 0.2‰ (v/v) HFBA in acetonitrile as mobile phase , at a flow rate of 0.30 mL/min, with retention time of 3.50 and 3.62 min for internal standard tobramycin and analyte neomycin , respectively. The MS was performed with positive ionization mode, with data acquisition in Multi Reaction Monitor (MRM) mode. This method was proved to be specific, accurate (97.1–115% of nominal values) and precise (CV% < 15%). Calibration curves for matrix matched standard of neomycin ranged from 1.25 to 200 μg/mL, with LOD and LLOQ of 0.625 and 1.25 μg/mL in blank matrix. The matrix effect was corrected to (−0.1) - 1.33 by adding internal standard. The relative SPE recovery values were ≥98.9% in low, medium and high QC samples. Neomycin in matrix proved to be stable under room temperature - and −20 °C, or under three freeze-thawing cycles, or under processing as well. Finally, the proposed method was successfully applied to a toxicokinetics study of neomycin in perilymph after round window membrane (RWM) administration, which was in accordance with threshold shift of auditory brainstem response (ABR) test related to hearing loss.
研究领域:
药理学
·
分析化学
·
耳科学
✓ 已验证
DOI
高影响因子
Marine Drugs
·
2015
·Vol. 13
·期 4
·2465-2487
·
IF 2.853
Chang-Jing Wu,Le Yi,Cheng-Bin Cui,Chang-Wei Li,Nan Wang,Xiao Han
Introduction of neomycin-resistance into a marine-derived, wild-typePenicillium purpurogenumG59 resulted in activation of silent biosynthetic pathways for the secondary metabolite production. Upon treatment of G59 spores with neomycin and dimethyl sulfoxide (DMSO), a total of 56 mutants were obtained by single colony isolation. The acquired resistance of mutants to neomycin was testified by the resistance test. In contrast to the G59 strain, the EtOAc extracts of 28 mutants inhibited the human cancer K562 cells, indicating that the 28 mutants have acquired the capability to produce bioactive metabolites. HPLC-photodiode array detector (PDAD)-UV and HPLC-electron spray ionization (ESI)-MS analyses further indicated that diverse secondary metabolites have been newly produced in the bioactive mutant extracts. Followed isolation and characterization demonstrated that five bioactive secondary metabolites, curvularin (1), citrinin (2), penicitrinone A (3),erythro-23-O-methylneocyclocitrinol (4) and 22E-7α-methoxy-5α,6α-epoxyergosta-8(14),22-dien-3β-ol (5), were newly produced by a mutant, 4-30, compared to the G59 strain. All1–5were also not yet found in the secondary metabolites of other wild typeP. purpurogenumstrains. Compounds1–5inhibited human cancer K562, HL-60, HeLa and BGC-823 cells to varying extents. Both present bioassays and chemical investigations demonstrated that the introduction of neomycin-resistance into the marine-derived fungal G59 strain could activate silent secondary metabolite production. The present work not only extended the previous DMSO-mediated method for introducing drug-resistance in fungi both in DMSO concentrations and antibiotics, but also additionally exemplified effectiveness of this method for activating silent fungal secondary metabolites. This method could be applied to other fungal isolates to elicit their metabolic potentials to investigate secondary metabolites from silent biosynthetic pathways.Keywords:Penicillium purpurogenumG59;marine-derived fungus;neomycin resistance;DMSO;antitumor activity;fungal metabolite production
研究领域:
微生物学
·
药物化学
·
分子生物学
✓ 已验证
DOI
PubMed
高影响因子
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
·
2018
·
IF 2.831
Ying-chun Wan,Yan-jie Liu,Chen Liu,Hui-ting Ma,Hui-fang Yu,Jia-wei Kang,Chen-long Gao,Zhong-qiao Wu,Dan Zheng,Bin Lu
A new analytical method was developed to detect neomycin in complex biological samples using molecularly imprinted polymer to construct an optical sensor. Fluorescent neomycin-imprinted polymers (fMIPs) containing both imprinted cavity and boronate affinity site were synthesized on the surface of silica-modified quantum dots. The fMIPs exhibited high selectivity to neomycin by having two binding sites for the target analyte. Neomycin analogues (competing for imprinted cavity) and D-glucose (competing for the boronate affinity site) did not affect the selectivity of the fMIPs. When combined with a fluorescent microplate reader, the obtained fMIP sensor displayed a linear concentration-dependent fluorescence quenching in response to neomycin in the range of 2–1000 μg/L, with a limit of detection as 0.16 μg/L. The fMIP sensor was able to detect trace neomycin in biological samples accurately after simple sample pre-treatment. The sensitivity of the fMIP sensor was higher than HPLC equipped with a fluorescence detector. The fMIP sensor containing the doubly selective binding sites provides a selective, sensitive, accurate, and high through-put approach for neomycin monitoring.
研究领域:
分析化学
·
生物医学工程
·
药物分析
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2017
·
IF 2.536
Huixiang Ouyang,Aihui Liang,Zhiliang Jiang
The stable Cu 2 O nanocubic (Cu 2 ONC) sol was prepared, based on graphene oxide (GO) catalysis of glucose-Fehling's reagent reaction, and its absorption and resonance Rayleigh scattering (RRS) spectra, transmission electron microscopy (TEM) and energy dispersive spectroscopy (EDS) were examined. Using the as-prepared Cu 2 ONC as RRS probe, and coupling with the neomycin sulfate (NEO) complex reaction , a new, simple, sensitive and selective RRS-energy transfer (RRS-ET) method was established for detection of neomycin sulfate, with a linear range of 1.4–112 μM and a detection limit of 0.4 μM. The method has been applied to the detection of neomycin sulfate in samples with satisfactory results.
研究领域:
分析化学
·
生物医学检测
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）