JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2024
·
IF 9.4
Hui Feng,Meng Luo,Guonian Zhu,Kerage Dorothy Mokeira,Yaoxin Yang,Yongxin Lv,Qing Tan,Xiangwen Lei,Hang Zeng,Hefa Cheng,Shuxia Xu
This study described the development of a photocatalytic electrochemical aptasensor for the purpose of detecting chloramphenicol (CAP) antibiotic residues in water by utilizing SYBR Green I (SG) and chemically exfoliated MoS 2 (ce-MoS 2 ) as synergistically signal-amplification platforms. The Au nanoparticles (AuNPs) were electrodeposited onto the surface of an indium tin oxide (ITO) electrode. After that, the thiolate-modified cDNA, also known as capture DNA, was combined with the aptamer. Subsequently, photosensitized SG molecules and ce-MoS 2 nanomaterial were inserted into the groove of the resultant double-stranded DNA (dsDNA). The activation of the photocatalytic process upon exposure to light resulted in the generation of singlet oxygen. This singlet oxygen effectively splits the double-stranded DNA, resulting in a significant enhancement in the current of [Fe(CN) 6 ] 3-/4- . When the CAP was present, both SG molecules and ce-MoS 2 broke away from the double-stranded DNA, which turned off the photosensitization response, leading to a significant decrease in the current of [Fe(CN) 6 ] 3-/4- . Under optimal conditions, the aptasensor exhibited a linear relationship between CAP and logarithmic concentrations from 20 to 1000 nM, with a detection limit (3 σ ) of 3.391 nM. The aptasensor also demonstrated good selectivity towards CAP in the presence of interfering antibiotics such as tetracycline, streptomycin, levofloxacin, ciprofloxacin, and sulfadimethoxine. Additionally, the results obtained from the analysis of natural water samples using the proposed aptasensor were consistent with the findings acquired through the use of a liquid chromatograph-mass spectrometer. Therefore, with its simplicity and high sensitivity, this biosensor can potentially detect alternative antibiotics in environmental water samples by replacing the aptamers based on photosensitization.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Senlin Peng,Jiayi Song,Shouting Wu,Qian Wang,Lingyi Shen,Dongmei Li,Jian Peng,Qilong Zhang,Xianjiong Yang,Hong Xu,Carl Redshaw,Ying Li
Multidrug-resistant (MDR) bacteria pose serious threats to public health due to the lack of effective and biocompatible drugs to kill MDR bacteria. Photodynamic antibacterial therapy has been widely studied due to its low induction of resistance. However, photosensitizers that can efficiently generate reactive oxygen species (ROS) through both type I and type II mechanisms and that have the capability of multiple modes of action are rarely reported. Addressing this issue, we developed a near-infrared-emitting triphenylamine indole iodoethane (TTII) and its silver(I) self-assembled (TTIIS) aggregation-induced emission (AIE) photosensitizer for multimode bacterial infection therapy. TTII can efficiently produce both Type I ROS •OH and Type II ROS 1O2. Interestingly, the Ag(I)−π interaction contributed in TTIIS efficiency promotion of the generation of 1O2. Moreover, by releasing Ag+, TTIIS enabled photodynamic-Ag(I) dual-mode sterilization. As a result, TTIIS achieved an effective enhancement of antibacterial activity, with a 1–2-fold boost against multidrug-resistant Escherichia coli (MDR E. coli). Both TTII and TTIIS at a concentration as low as 0.55 μg mL–1 can kill more than 98% of methicillin resistant Staphylococcus aureus (MRSA) on MRSA-infected full-thickness defect wounds of a mouse, and both TTII and TTIIS were effective in eliminating the bacteria and promoting wound healing.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 11
·2706
·
IF 3.1
Yingzhe Du,Lili Li,Yukun Yuan,Yufaning Yin,Genggeng Dai,Yaqing Ren,Shiying Li,Peng Lin
Throughout the nuclear power production process, the disposal of radioactive waste has consistently raised concerns about environmental safety. When the metal tanks used for waste disposal are corroded, radionuclides seep into the groundwater environment and eventually into the biosphere, causing significant damage to the environment. Hence, investigating the adsorption behavior of radionuclides on the corrosion products of metal tanks used for waste disposal is an essential component of safety and evaluation protocols at disposal sites. In order to understand the adsorption behavior of important radionuclides60Co,59Ni,90Sr,135Cs and129I on α-FeOOH, the influences of different pH values, contact time, temperature and ion concentration on the adsorption rate were studied. The adsorption mechanism was also discussed. It was revealed that the adsorption of key nuclides onto α-FeOOH is significantly influenced by both pH and temperature. This change in surface charge corresponds to alterations in the morphology of nuclide ions within the system, subsequently impacting the adsorption efficiency. Sodium ions (Na+) and chlorate ions (ClO3−) compete for coordination with nuclide ions, thereby exerting an additional influence on the adsorption process. The XPS analysis results demonstrate the formation of an internal coordination bond (Ni–O bond) between Ni2+and iron oxide, which is adsorbed onto α-FeOOH.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
FOOD CHEMISTRY
·
2011
·
IF 3.458
Huanshun Yin,Yunlei Zhou,Xiaomeng Meng,Tiantian Tang,Shiyun Ai,Lusheng Zhu
In this work, a simple and sensitive electrochemical method was developed to determine Sudan I based on magnetic Fe 3 O 4 nanoparticles modified glassy carbon electrode using cyclic voltammetry and differential pulse voltammetry. The sensor exhibited an obviously electrocatalytic activity towards the oxidation of Sudan I, which can be confirmed by the increased oxidation peak current and the decreased oxidation peak potential when compared with the bare GCE. The determination conditions, such as pH, modifier amount, accumulation time and accumulation potential, were optimised. And some kinetic parameters were calculated. Under the optimum experimental conditions, the oxidation current of Sudan I was proportional to its concentration from 0.01 to 1 μM and 1 to 20 μM. The detection limit was estimated to be 0.001 μM ( S / N = 3). The developed method was successfully applied to determine Sudan I content in food samples with satisfactory results.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INTERNATIONAL JOURNAL OF MINERAL PROCESSING
·
2017
·
IF 1.561
An Liu,Min-qiang Fan,Zhi-hong Li,Jin-chuan Fan
In this paper, in order to study the interaction mechanism of non-polar oil assisted dodecylamine (DDA) flotation of quartz, the particle-oil drops system were treated the same as the hydrophobic particles system. Pure dodecane was chosen as research object, the interfacial interactions between quartz particle and oil drop were investigated through calculation of the extended Derjaguin-Landau-Verwey-Overbeek (EDLVO) potential energy profile. Based on the calculations of the van der Waals attractive interaction potential, hydrophobic interaction potential, hydrocarbon chain association potential, and electrostatic interaction potential, the results indicated that the mineral particle and oil drop attachment state was mainly dominated by hydrophobic interaction potential. In the modification of oil agglomeration flotation process, the adsorption of DDA on the dodecane/water interface presented significant effects on the interfacial interactions between quartz particle and oil drop. It was found that the adsorption of DDA at dodecane/water interface changed the zeta potential value of oil drop from negative to positive. In this case, the attachment of the particles would occur spontaneously, which was due to the contribution of electric double layer attractive interaction. On the contrary, in the traditional oil agglomeration flotation process, a mechanical agitation was required to overcome a potential barrier due to the existence of electric double layer repulsive interaction between the negatively charged oil drops and mineral particles. This study was focus on the theoretical level, and provided some insights into mechanism of oil agglomeration flotation.
✓ 已验证
产品关联
DOI
高影响因子
POLYHEDRON
·
2017
·
IF 1.926
Ling-Dong Chen,Lin-Xia Zhou,Yue-Qing Zheng,Hong-Lin Zhu
Two new supramolecular complexes [Ag 2 (MA) 2 (2-nbd)]·2.5H 2 O ( 1 ) and [Ag 2 (MA) 2 (3-npa)]·2H 2 O ( 2 ) (2-H 2 nbd = 2-nitroterephthalic acid; MA = melamine; 3-H 2 npa = 3-nitrophthalic acid) have been synthesized under ultrasound conditions and characterized by infrared spectra (IR), thermogravimetric analysis (TGA), elemental analyses (EA) and X-ray diffraction (XRD). Complex 1 exhibits 2D framework through the bridging of carboxylic acid ligand and melamine ligand. Complex 2 presents a binuclear silver structural unit, which was further construct to three-dimension structure via hydrogen-bond interaction. The photocatalytic performance and photoluminescent properties of them were also investigated. And the results show that complex 1 and 2 exhibited good photocatalytic activity towards the degradation of Rhodamine B (RhB) and Methylene Blue (MB) under visible light irradiation. Moreover, it is verified that the degradation rate fits the first-order kinetics.
✓ 已验证
产品关联
DOI
高影响因子
Biomaterials Science
·
2024
·
IF 5.8
Yuxue Pan,Mengyuan Wang,Peng Wang,Hongliang Wei,Xiangjuan Wei,Dongmei Wang,Yongwei Hao,Yongxue Wang,Hongli Chen
Oral mucositis (OM) is a common side effect experienced by cancer patients undergoing chemotherapy and/or radiotherapy. In this study, we developed a semi-interpenetrating network hydrogel (IPN) that is suitable for adhesion to oral mucous membranes and gradual degradation in the oral environment. This IPN was based on the combination of ε-polylysine (PLL) and Hetastarch (HES), loaded with DNase-I and Oridonin (ORI) (ORI/DNase-I/IPN) for the treatment of OM. In vitro studies were conducted to evaluate degradation, adhesion, release analysis, as well as bioactivity including cell proliferation and wound healing assays using epidermal keratinocyte and fibroblast cell lines. Furthermore, the therapeutic effects of ORI/DNase-I/IPN were investigated in vivo using Sprague-Dawley (SD) rats with chemoradiotherapy-induced OM. The results demonstrated that the IPN exhibited excellent adhesion to wet mucous membranes, and the two drugs co-encapsulated in the hydrogel were released in a controlled manner. The in vivo wound repair effect, microbiological assays, H&E and Masson staining supported the non-toxicity of ORI/DNase-I/IPN, as well as its ability to accelerate the healing of oral ulcers and reduce inflammation. Overall, ORI/DNase-I/IPN demonstrated a therapeutic effect on oral ulcers in rats by significantly accelerating the healing process and reducing inflammation. These findings provide new insights into possible therapies for OM.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Nature Energy
·
2024
·
IF 49.7
Xie Congxin,Wang Chao,Xu Yue,Li Tianyu,Fu Qiang,Li Xianfeng
The ever-increasing need for energy-dense batteries with high safety is fuelling global research and innovations in new redox chemistry and device design. Here we show an aqueous battery employing highly concentrated hetero-halogen electrolytes that contain I − and Br - , resulting in a multielectron transfer process of I − /IO 3 − . The intermediate bromide species IBr and Br 2 , generated during the electrochemical process, enhances the reaction kinetics and alleviates the potential gap between oxidation and reduction. When using a 6 M I − electrolyte to achieve over 30 M electron transfers, the I − /IO 3 − cathode displayed a high specific capacity of over 840 Ah l catholyte −1 . A battery with Cd/Cd 2+ as the anode demonstrated a high energy density of over 1,200 Wh l catholyte −1 . Even at an exceptionally high current density of 120 mA cm −2 , an energy efficiency of 72% was obtained. Our work demonstrates that safe aqueous batteries with high energy density are possible, offering a development option for grid-scale energy storage and even electric vehicles.
✓ 已验证
产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2024
·
IF 8.5
Jiaxiong Wu,Sihuan Shen,Huan Cheng,Haibo Pan,Xingqian Ye,Shiguo Chen,Jianle Chen
In this study, we investigated how different proportions blends of Rhamnogalacturonan-I pectic polysaccharides and hesperidin impact the gut microbiota and metabolites using an in vitro simulated digestion and fermentation model. The results indicated that both of them could modulate the gut microbiota and produce beneficial metabolites. However, their blends in particular proportions (such as 1:1) exhibited remarkable synergistic effects on modulating the intestinal microenvironment, surpassing the effects observed with individual components. Specifically, these blends could benefit the host by increasing short-chain fatty acids production (such as acetate), improving hesperidin bioavailability, producing more metabolites (such as hesperetin, phenolic acids), and promoting the growth of beneficial bacteria. This synergistic and additive effect was inseparable from the role of gut microbiota. Certain beneficial bacteria, such as Blautia , Faecalibacterium , and Prevotella , exhibited strong preferences for those blends, thereby contributing to host health through participating in carbohydrate and flavonoid metabolism.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Material Cycles and Waste Management
·
2025
·
IF 3
Lou Wen-bo,Liu Dong-yan,Zhao Da,Wang Yun,Sun Zi-cheng,Zou Yi,Niu Xiao-wei,Cheng Quan-guo,Li Jian-zhong,Liu Hong-hui
The recovery of NCM (LiNi x Co y Mn 1-x-y O 2 , abbreviated as NCM) cathode materials from retired lithium-ion batteries is a research hotspot in resource recycling field. Nevertheless, due to aluminum impurities mixed in raw materials, Li(I) and Al(III) ions are easy to combine to form water-insoluble LiAlO 2 during reduction, affecting Li(I) ions’ water-leaching efficiency. In this study, the LiAlO 2 formation environment is analyzed. Thermodynamic analysis reveals that there is generally less spontaneity in the reaction of Li (I) ions with aluminum monomers compared to Al 2 O 3 , and the introduction of CO 2 can inhibit Li-Al-O substance production. Li-Al binding experiments show that there is almost no direct reaction between Li 2 CO 3 and aluminum monomers, but under Ar atmosphere, Li 2 CO 3 and Al 2 O 3 can easily lead to Li-Al binding, a kinetic analysis considers that binding is controlled by chemical reaction, with an activation energy of 57.78 kJ/mol, and the activation energy increases to 88.028 kJ/mol with CO 2 atmosphere. Under reduced optimization conditions (reduction temperature: 500 °C, time: 6 h, and m NCM : m Al = 1: 0.25), the carbonation water-leaching efficiency can reach 95.1% for Li(I) ions and less than 1% for Ni(II), Co(II), Mn(II), and Al(III) ions. Thus, this work offers a theoretical basis for the industrial Li(I) ions’ recovery from aluminum-containing NCM materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
·
2025
·
IF 1.6
Sun Yuchen,Guo Mingyu
In this work, we report the efficient removal of I − /IO 3 − from wastewater by tripropylamine quaternary ammonium cation based monodisperse microspheres. Benefitting from the rapid solvent exchange process and the excellent ionic selectivity of tripropylamine quaternary ammonium cation, these microspheres show capture rate of 98% for I − and 66% for IO 3 − at a concentration of 50 ppm. Meanwhile, they exhibit high adsorption capacities of 350 mg/g for I − and 370 mg/g for IO 3 − , coupling with excellent reusability. These characteristics highlight their superior practicability for removal of iodine, particularly in the context of radioactive iodine-contaminated water.
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Yifan Liu,Yiyu Yang,Minjie Peng,Wen Zang,Chaozhen Wang,Yuenan Zhang,Changyong Gao,Aiguo Wu,Yujie Zhang
Heparin, as a glycosaminoglycan with multiple physiological functions, performs important roles in clinical practice. The core function of heparin is its anticoagulant effect, which is commonly used to prevent and treat thrombotic diseases. However, when the heparin content in human blood exceeds the standard, it can result in thrombocytopenia, thereby posing threat to human health. Therefore, rapid, sensitive and accurate detection of heparin is of great practical importance in assessing the anticoagulant effect, prevention of thrombophilia, guidance on personalized medication, and avoiding side effects caused by excessive use. A new colorimetric sensor for detecting the anticoagulant heparin is introduced in this work. The sensor is low cost, fast, and simple. In the absence of heparin, protamine protects copper‑gold nanoparticles from the etching of iodide ions through electrostatic interaction, and the solution's color and spectral properties remain essentially the same as those of pure copper‑gold nanoparticles. When heparin is present, due to the strong electrostatic adsorption between heparin and protamine, protamine preferentially binds heparin and forms a complex. Cu-Au NPs are not protected and are etched into spherical Au NPs by iodide ions. The solution's color shifted from dark gray and purple to pink, thus colorimetric detection of heparin is realized rapidly based on the etching mechanism. The detection time is 15 min, and the detection limit is as low as 1 ng/mL. Compared with HPLC detection method, the colorimetric detection of heparin in serum samples has the recovery rate of 98.8–108.8 %, which has good prospects for application.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）