Materials Today Physics
·
2020
·
IF 10.443
T. Zhang,H. Yu,J. Li,H. Song,S. Wang,Z. Zhang,S. Chen
Water pollution by pathogenic bacteria is a major threat to human health, and less-than-ideal disinfection and antimicrobial strategies have been developed to address waterborne pathogens. A green light–triggered photocatalytic antimicrobial rose bengal (RB)–modified cotton fabric (CF) (RB-CF) was prepared for wastewater disinfection by covalently binding RB to a CF surface. The antimicrobial rates of RB-CF against gram-positive Staphylococcus aureus and gram-negative Escherichia coli were both greater than 99.99% due to the generation of singlet oxygen that inactivates microbes under green light irradiation. Most importantly, RB-CF exhibited high stability, negligible cytotoxicity, and no release of free RB during the photocatalytic process, which was the key to its long-term antimicrobial activity and use security. Its long-term antimicrobial activity was further verified by the repeated photocatalytic disinfection; more than 99.99% of bacteria were inactivated even after five cycles. Therefore, this work may offer a potential avenue to develop low-cost, non-toxic, and durable antimicrobial fabrics with great potential for industrial and health-care applications, including but not limited to water purification , wastewater disinfection, masks, and protective clothing.
研究领域:
环境科学
·
微生物学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2023
·Vol. 34
·期 4
·1-19
·
IF 2.8
Yao Bingdong,Zheng Guangwei,Luan Yina,Wang Lingxu,Xing Xuemin,Wang Yangyang,Liu Yan,He Jingxian,Zhang Fengqing
The morphology-controlled synthesis of nanostructured photocatalysts by an environmentally friendly and low-cost method provides a feasible way to realize practical applications of photocatalysts. Herein, Bi 2 WO 6 (BWO) nanophotocatalysts with mulberry shape, sheet-like, and round-cake morphologies have been successfully synthesized through a highly facile solvothermal process by simply adjusting the solvothermal temperature or utilizing selective addition of ethylene glycol as an orientation agent without using strong acids and bases and/or hazardous chemicals. The ratio of ethylene glycol and glacial acetic acid can affect the morphology and oxygen vacancy content of BWO, thereby influencing the photocatalytic performance. The photocatalytic activity of the as-prepared samples was evaluated by degradation of rhodamine B (RhB) and tetracycline under visible-light irradiation. The results indicated that all the BWO samples exhibited morphology-associated photocatalytic activity, and the sheet-like structure of BWO obtained via solvothermal treatment at 120 °C with ethylene glycol and glacial acetic acid ratio of 1:3 achieved the maximum specific surface area and possessed abundant oxygen vacancies, exhibiting outstanding photocatalytic activity for degradation of RhB and tetracycline. The degradation rate of RhB reached 100% within 20 min. To the best of our knowledge, this value is one of the most remarkable values for pristine BWO photocatalysts. Radical capture experiments demonstrated that hydroxyl radicals (·OH) play major roles compared with electrons (e − ) and holes (h + ) in the photocatalytic degradation process. A possible mechanism for the photocatalytic degradation of pollutants was proposed to better understand the reaction process. We believe that the more economical, efficient and greener methodology can provide guidance to develop highly efficient photocatalysts with favourable morphology and structure.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2018
·
IF 6.14
Liuqing Xiao,Yuxing Huang,Yu Luo,Bo Yang,Yizhen Liu,Xuechang Zhou,Junmin Zhang
Cotton fiber is an abundant natural material, which has a long history of application in human daily life. However, a report on using such material in catalysis for organic synthesis is rare. We envisaged that the hydroxyl groups on the surface of cotton fiber could be utilized for functionalization and further immobilization of organic catalysts. In this report, we demonstrate the facile functionalization of cotton fiber by growing polymer brushes on its surface and further anchoring of Rose Bengal (RB) organic photocatalyst. This novel composite cotton photocatalyst demonstrated high efficiency in catalyzing cross-dehydrogenative coupling reactions and N-demethylation reactions with irradiation of visible light. The catalytic reaction can be facilely scaled up by a homemade circulating flow reactor.
研究领域:
化学工程
·
材料科学
·
有机合成
✓ 已验证
DOI
高影响因子
TALANTA
·
2018
·
IF 4.244
Yang Zhang,Lu Yang,Yan-Hua Wang,Ai-Hua Liu
Highly porous carbon-based materials with 3-dimensional mesh structure as an adsorbent that have been used extensively in environmental treatment, however, it remains challenging to improve performance and to reduce costs. A novel Mo x P y nanoparticles anchored mesh structural biomass carbon (Mo x P y /MSBC) was prepared from renewable seaweed and applied as an efficient absorbent for the selective adsorption of dyes . The mesh structure of provides a powerful support for the Mo x P y nanoparticles and could protect the nanoparticles from being lost. Meanwhile, a better 3D mesh structure obtained endows MSBC a high surface area with a large number of active interaction sites. The Mo x P y /MSBC composite exhibits excellent selective adsorption properties and high adsorption capacity for methyl blue (MB) and rose bengal (RB) at distinctive pH and rapid removal rates within 5 min at 298 K. The adsorption kinetics , isotherm and thermodynamics were determined. In addition, the regeneration of the Mo x P y /MSBC could be accomplished in only three minutes through a simple method by using the absolute alcohol. Therefore, the simple synthesis, high efficacy, excellent selectivity and regenerability in aqueous medium enable the hybrid nanocomposites as excellent candidates to selective removal processes of dyes.
研究领域:
环境科学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2024
·
IF 4.1
Jie Song,Hong Luo,Ting Pan,Han Jiang,Yiwei Wu,Xiaoxiao Yu
Risperidone, olanzapine and aripiprazole have good efficacy in schizophrenia. Monitoring the concentration of antipsychotics in patients is helpful to provide a precise medication administration. Although many detection techniques based on large instruments have been developed, they are expensive and cumbersome, which are not conducive to clinical promotion. In this paper, rose bengal (RB) was firstly used as a low-cost fluorescent probe for the detection of antipsychotic drugs. Under the condition of pH 3.9, there is a strong negative electrostatic potential region in RB, which attracts positively charged antipsychotic drugs. This property allows the halogen atoms and oxygen atoms of RB to act as hydrogen bond donors to molecularly bond with the H atoms of the antipsychotic drugs, forming a non-luminous complex. The fluorescence intensity showed a linear quench relationship with the increasing concentration of risperidone, olanzapine and aripiprazole with low detection limits of 103, 82.0 and 81.0 μg L −1 , respectively. This fluorescent method has good selectivity and can be successfully utilized in detecting antipsychotic medications in human urine and pharmaceutical tablets.
研究领域:
医学
·
药理学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
NANO
·
2022
·
IF 1.438
Hong Zhao,Zhenghua Du,Diandian Liu,Yijian Lai,Tao Yang,Mingyan Wang,Yuesheng Ning,Fujun Yin,Binyuan Zhao
The design and construction of semiconductor–metal heterojunctions are being considered to be an effective way to overcome the limited visible-light absorption of semiconductors. Herein, a facile and scale approach is reported for the first time to synthesize Cu/ZnO heterojunctions by one-step galvanic replacement between Zn and cuprous solution reaction. Two kinds of morphologies Cu/ZnO heterojunctions could be obtained by changing cuprous salt anion such as Br − , Cl − and I − . A flower-like Cu/ZnO heterostructured is chosen as a representative to demonstrate the facility and enhanced photocatalytic performance toward Rhodamine B degradation under visible-light irradiation. Results showed flower-like Cu/ZnO heterojunctions have higher photocatalytic performance than the other two morphologies. The galvanic replacement growth mechanism of Cu/ZnO heterojunctions was also further investigated. It is found that Cu/ZnO heterojunctions formed from Zn and Cu 2 O at an acid solution and room condition. This work indicates that galvanic replacement reaction at room temperature is an excellent technique to grow Cu/ZnO heterojunctions and demonstrates that the hole and electron transfer between Cu and ZnO can efficiently enhance their photocatalytic performance. This general method can also be further explored to guide the design of metal/metal oxide heterostructured on other substrates, such as Zn, Ni and Cu foils.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
·
2023
·
IF 4.4
Peiyao Wang,Silan Bai,Chen Chen,Yongtao You,Junhui Xiao,Xinrong Guo,Lishi Wang
Rose Bengal (RB) is used as a sensitizer in ambient water due to its property of catalyzing the production of singlet oxygen ( 1 O 2 ). However, this property also brings phototoxicity and carcinogenicity. The NaYF 4 :3%Er@NaYF 4 core-shell upconversion nanoparticles (UCNPs) with higher upconversion efficiency was synthesized to detect RB in ambient water. Due to fluorescence resonance energy transfer (FRET) between RB and UCNPs, the upconversion fluorescence at 538 nm emitted by UCNPs was quenched by the RB, while the emission at 566 nm of RB raised. In the best conditions, the ratiometric emission intensity F 566 /F 538 was positively proportional to RB concentration and the linear range was 0.04–15.0 μg·mL −1 (R 2 = 0.996). The detection limit (S/N = 3) of RB was 2.46 ng·mL −1 . The recoveries ranged from 99.0% to 105.6% (relative standard deviation 0.97–3.24%, n = 3) in tap water and 100.3%–104.9% (relative standard deviation 0.66–1.94%, n = 3) in lake water. This proposed method exhibits lower detection limit and larger linear, which possesses practical application value to the detection of RB in water.
研究领域:
环境科学
·
分析化学
·
生物医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TETRAHEDRON
·
2017
·
IF 2.651
Ling-Ling Wu,Li Tang,Shui-Gen Zhou,Yi-Jie Peng,Xiao-Dong He,Zhi Guan,Yan-Hong He
We report an example of Rose Bengal-photosensitized oxidation of tertiary amines for the synthesis of bis-1,3-dicarbonyl compounds. This protocol employs Rose Bengal as a visible-light absorbing photocatalyst without the need of a transition metal, and air as a green oxidant . Various functional groups were well tolerated to afford products with yields of up to 80% under mild reaction conditions.
研究领域:
有机化学
·
绿色化学
✓ 已验证
产品关联
DOI
高影响因子
FIBERS AND POLYMERS
·
2023
·Vol. 24
·期 1
·1-14
·
IF 2.5
Wang Chuanfeng,Chen Yingbo,Wang Meng,Guo Renhao
A dual-layer (DL) PVDF loose nanofiltration (NF) hollow fiber membrane (HFM) was designed via optimized phase inversion process using a continuous online-coating device. Subsequently, the loose DL PVDF HFM was cross-linked through a one-pot amine-based reaction to improve the solvent stability. Changes in chemical structure were characterized using Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscope (XPS). The solvent stability in DMF of the membranes with different cross-linking time was investigated through measuring swelling ratio of the membranes. In addition, thermogravimetric analysis (TGA) and mechanical property were also conducted to study physico-chemical changes of the cross-linked DL PVDF hollow fiber membranes. The results showed that this cross-linking process significantly improved the stability in polar solvent, accompanied by a decrease in thermal stability and mechanical properties. A cross-linking time of 8 h was found to produce DL PVDF HFMs with most balanced properties. The performance of cross-linked membranes was evaluated via filtering various solutes in ethanol solution and typical solvents containing Rose bengal (RB). The cross-linked DL HFMs showed rejection of RB more than 99% in solvent with methanol, ethanol, isopropanol, and acetone and permeance of 9.3, 7.6, 5.2, and 8.7 L/(m 2 ·h·bar), respectively. Besides, the prepared membranes also presented exceptional performance stability for treatment of RB/ethanol solution. Thus, they have great potential for real organic solvent nanofiltration applications.
研究领域:
材料科学
·
化学工程
·
膜技术
✓ 已验证
产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2025
·
IF 5.1
Quanliang Li,Xiaomeng Wang,Jing Ren,Ping Chen,Dayong Ren
Rapid and reliable quantification of meat freshness is crucial for consumer health and food safety. In this study, two simple and portable photosensitive colorimetric cards were fabricated for rapid on-site detection of meat freshness. The colorimetric cards were prepared by dispersing Rose Bengal (RB) into sodium acetate-acetic acid and sodium citrate-citric acid buffer systems containing 3,3′,5,5′-tetramethylbenzidine (TMB) and fixed on filter paper, respectively. The hue of the colorimetric cards was intimately correlated with the amount of volatile base nitrogen absorbed from meat, by which the quality of the meat can be visualized qualitatively. Correlation analysis of total volatile basic nitrogen (TVB-N), red: blue ratio (R/B), total color difference (ΔE), and response sensitivity (S%) demonstrated the accuracy of the proposed colorimetric cards. Principal component analysis (PCA) revealed that the first two principal components of the photosensitive colorimetric cards explained 95.4 %, 93.2 %, 92.9 %, and 87.8 % of the variance of sodium acetate-acetate colorimetric card, and 73 %, 87.9 %, 87.1 %, and 92 % of sodium citrate-citric card, respectively, which allowed for a clear differentiation of meat freshness including freshness, sub-freshness, and spoilage. The prepared photosensitive colorimetric cards can accurately reflect meat quality within 4 min. The proposed colorimetric cards are expected to be a prospective universal platform for on-site accurate quantification of meat freshness.
研究领域:
食品安全
·
分析化学
·
传感器
·
比色检测
·
光化学
✓ 已验证
产品关联
DOI
高影响因子
PSYCHOPHARMACOLOGY
·
2022
·Vol. 239
·期 11
·3579-3593
·
IF 4.415
Mou Chen-Ye,Xie Yan-Fei,Wei Jia-Xin,Wang Qi-Yao,Le Jing-Yang,Bao Yong-Jie,Zhang Pan-Pan,Mao Yue-Chun,Huang Xing-Han,Pan Han-Bo,Naman C. Benjamin,Liu Lin,Liang Hong-Ze,Wu Xiang,Xu Jia,Cui Wei
Rationale
Tau hyperphosphorylation and aggregation is considered as a main pathological mechanism underlying Alzheimer’s disease (AD). Rose Bengal (RB) is a synthetic dye used for disease diagnosis, which was reported to inhibit tau toxicity via inhibiting tau aggregation in Drosophila . However, it was unknown if RB could produce anti-AD effects in rodents. Objectives The research aimed to investigate if and how RB could prevent β-amyloid (Aβ) oligomers-induced tau hyperphosphorylation in rodents. Methods and results RB was tested in vitro (0.3–1 μM) and prevented Aβ oligomers-induced tau hyperphosphorylation in PC12 cells. Moreover, RB (10–30 mg/kg, i.p. ) effectively attenuated cognitive impairments induced by Aβ oligomers in mice. Western blotting analysis demonstrated that RB significantly increased the expression of pSer473-Akt, pSer9-glycogen synthase kinase-3β (GSK3β) and reduced the expression of cyclin-dependent kinase 5 (CDK5) both in vitro and in vivo. Molecular docking analysis suggested that RB might directly interact with GSK3β and CDK5 by acting on ATP binding sites. Gene Ontology enrichment analysis indicated that RB might act on protein phosphorylation pathways to inhibit tau hyperphosphorylation. Conclusions RB was shown to inhibit tau neurotoxicity at least partially via inhibiting the activity of GSK3β and CDK5, which is a novel neuroprotective mechanism besides the inhibition of tau aggregation. As tau hyperphosphorylation is an important target for AD therapy, this study also provided support for investigating the drug repurposing of RB as an anti-AD drug candidate.
研究领域:
神经科学
·
药理学
·
分子生物学
·
病理学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Ming Huang,Yingfeng Wang,Yuhan Zhu,Maoli Yin,Zhipeng Ma,Xiaojuan Li
To address the challenge of antibiotic resistance and cross-infection from microorganisms, chitosan (CS) was covalently bound with rose bengal (RB) and blended with polyethylene oxide (PEO) to prepare nanofiber membranes with good antibacterial properties. Morphological and structural characteristics confirmed successful integration of RB-modified CS (CS-RB) without compromising the fiber morphology or stability of PEO/CS-RB nanofiber membranes. FT-IR and TG analyses were employed to characterize the chemical structure and thermal stability of PEO-based membranes. With visible light irradiation, PEO/CS-RB nanofiber membranes efficiently generated reactive oxygen species (ROS), enabling rapid inactivation of all Escherichia coli (E. coli), Staphylococcus aureus (S. aureus) and Candida albicans (C. albicans) within 30 min. The PEO-based membranes exhibited well-balanced hydrophilicity and water stability, along with low hemolytic activity, indicating good biocompatibility. This strategy creates PEO-based membrane materials that exhibit good biocompatibility, hydrophilicity, and photodynamic antibacterial properties, making them suitable for use in the biomedical and healthcare fields.
研究领域:
材料科学
·
生物医学工程
·
抗菌技术
·
纳米技术
·
高分子科学
✓ 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）