CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Xiaoshun Wei,Xuechun Yang,Yun Guo,Guohao Li,Yinzhong Liu,Lingli Cheng,Zheng Jiao
Being one of toxic and flammable volatile organic compounds (VOC), n-butanol has brought about many potential health risks, there is an urgent demand for highly sensitive detection techniques to monitor its concentration in occupational environments and the air. In this paper, Ce-doped MOF:ZnO sensors under UV activation for room-temperature detection of n-butanol were synthesized by the co-precipitation method and systemically characterized by XRD, SEM, HRTEM, and XPS. The sensitive performances were evaluated by the use of a WS-30A gas sensor measurement system. The results showed that Ce doping has significantly enhanced the sensitivity of the MOF:ZnO sensors, and the response value of the 0.08 % Ce-doped ZnO sensor has achieved to 397.30, which was 9.32 times higher than that of the pristine MOF:ZnO. And the response and recovery times were 17 and 117 s respectively, demonstrating a speedy detection capability. In addition, the sensor gained excellent stability and reproducibility with special selectivity for n-butanol. The comprehensive achievements of this research would be promising to promote the development of volatile organic compound detection technology and beneficial to the well application in the fields of environmental monitoring, industrial safety, and public health.
研究领域:
材料科学
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环境科学
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传感器技术
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Lin Wang,Haili Huang,Dongdong Zhang,Hung-Chun Wu,Meiling Li,Huilin Hou,Weiyou Yang,Xuhui Yu,Zonghua Wang
Triethylamine (TEA) is a typically volatile organic compound that poses significant environmental and health risks, due to its high toxicity and volatility. Currently, the exploration of TEA sensors based on semiconductor ZnO is still suffered by their intrinsically low sensitivity, slow response/recovery times, and poor selectivity. Herein, we develop the highly-sensitive TEA sensors based on rationally-designed Co 3 O 4 /ZnO p-n heterojunctions, in which the clustered Co 3 O 4 are incorporated into porous ZnO nanosheets. As a result, at the given operating temperature of 260 °C, the as-constructed sensors exhibit an overall enhanced performance with an excellent response of 140.5 to 100 ppm TEA, swift response/recovery times of 6/60 s and high selectivity, representing their promise toward practical applications in advanced TEA sensors.
研究领域:
材料科学
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环境科学
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化学传感器
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2024
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IF 8
Zhiguo Yang,Xingtai Chen,Qiuying Chen,Jiayi Qu,Yujun Guo,Kaiwen Zhou,Tianren Wang,Davoud Dastan,Xiaoning Wang,Feifei Wang,Xiaoming Tan,Xi-Tao Yin,Xiaoguang Ma
In this work, In 2 O 3 nanospheres were synthesized using urea as a carbon template and modified with Co ions. The synthesized materials were characterized using various instruments to obtain information about the elemental composition and morphology of the materials. The results showed that Co ions replaced the lattice position of In ions and synthesized nanospheres aggregated from 20 nm particles. The results of gas sensitivity tests on all the samples showed that the response to 50 ppm n-butanol at 250 °C reached 540 when Co was doped up to 5 at%. In comparison, the sensor showed very low response to benzene gas with good selectivity. The high response of the sensor to n-butanol is due to the increase in vacancy oxygen content and redox reactions due to the multivalent nature of Co ions. The article concludes with a detailed analysis of the sensing mechanism.
研究领域:
材料科学
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传感器技术
✓ 已验证
DOI
高影响因子
RSC Advances
·
2025
·Vol. 15
·期 3
·1838-1845
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IF 4.6
Yaqi Zhang,Qiangjun Chen,Lei Wang,Haoyuan Geng,Zihan Zhu,Cancan Lv,Yisheng Zhao,Xiao Wang,Chenglong Sun,Panpan Chen,Chao Zhang
Colorectal cancer is the second leading cause of cancer-related deaths worldwide, and its development typically involves complex metabolic reprogramming. By mapping the spatial distributions of metabolites and N-glycans in heterogeneous colorectal cancer tissues, we can elucidate cancer-associated metabolic and N-glycan changes. Herein, we combine mass spectrometry imaging-based metabolomics and N-glycomics to characterize the spatially resolved reprogramming of metabolites and N-glycans in colorectal cancer tissues. The metabolic characteristics of different regions of colorectal cancer were evaluated through the utilization of orthogonal partial least squares discriminant analysis. In combination with metabolic pathway enrichment analysis, significant alterations were identified in the fatty acid metabolism, arginine and proline metabolism of colorectal cancer. Cancer cell regions exhibited a marked upregulation of saturated fatty acids, monounsaturated fatty acids, polyamines, and histidine. Additionally, we discovered that the high-mannose N-glycans were predominantly distributed in tumor tissue regions, whereas complex N-glycans were more commonly found in the normal tissue regions adjacent to the tumor. Such findings provide new insights into the spatial signatures of metabolites and N-glycans in colorectal cancer, thereby offering a crucial basis for the diagnosis of colorectal cancer and potential vulnerabilities that might be targeted for cancer therapy.
研究领域:
肿瘤学
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代谢组学
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蛋白质组学
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生物信息学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
APPLIED CATALYSIS A-GENERAL
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2022
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IF 5.723
Yan Li,Mengna Ding,Guoxiang Yang,Lei Wang,Liulin Luo,Yingchun Miao,Yuning Huo
Acinetobacter baumannii ( A. baumannii ) was widely existed in medical wastewater and easily induced infections to threaten the human healthy. We herein reported Ag/CoO-N photocatalyst composites for effective inactivation of A. baumannii . Ag/CoO-N composites were prepared by N-doping to CoO crystal in supercritical fluid followed with photo-reduction of Ag under visible-light irradiation. N-species was incorporated in the crystal structure of CoO, on which uniform Ag nanoparticles were stably deposited. Thus, the satisfactory photocatalytic sterilization of A. baumannii irradiated by visible-light irradiation was attributed to the high capability of light trapping and the efficient separation of photo-charges. Due to photo-induced electrons as the main active species, Ag nanoparticles and CoO-N synergistically realized mineralization of cell membrane, which lead K + ions leak from cell to crack structure of bacteria, the decrease of genetic materials, and the cripple of the self-repair function in bacteria, resulting in the final cell death.
研究领域:
微生物学
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材料科学
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医学
✓ 已验证
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
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2016
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IF 3.138
Hongli Liu,Xiaoli Liu,Lin Yue,Qixing Jiang,Wenshui Xia
N , O -Carbonylated chitosan derivative (NTCS) was synthesized via oxidation and substitution reaction, respectively. The carboxyethylation of the polysaccharide was identified by Fourier transform infrared (FTIR), 1 H nuclear magnetic resonance (NMR), X-ray diffraction analysis (XRD), Zeta potential measurement and Thermogravimetric analysis (TGA). It is revealed that compared with chitosan (CS), NTCS exhibited an excellent solubility in distilled water, high in vitro bile acid binding capacity, as well as a low viscosity. The in vitro bile acid binding capacity reached 17.21 mg/g, which was 4.5-fold higher than that of CS. The results suggest that NTCS may be useful as a potential functional food supplement in food industry or a key ingredient in the pharmaceutical industry. These findings provide important supports for developing new food additive, and expand the scope of application of CS in the food industry.
研究领域:
食品科学
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生物化学
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药学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF CHROMATOGRAPHY A
·
2016
·
IF 3.926
Yiman Zhao,Yajing Chen,Zhichao Xiong,Xudong Sun,Quanqing Zhang,Yangyang Gan,Lingyi Zhang,Weibing Zhang
In consideration of the close connection between glycopeptides and human diseases, the efficient method to separate and enrich glycopeptides from complex biological samples is urgently required. In the work, we developed a magnetic zwitterionic-hydrophilic material for highly effective separation and analysis of glycopeptides from complex samples. The Fe 3 O 4 particles were covered with a thick layer of polymer by one-step reflux-precipitation polymerization (RPP), subsequently decorated by Au nanoparticles (Au NPs) through in situ reduction and finally modified with zwitterionic groups. The abundant zwitterionic sites facilitate the selective enrichment of glycopeptides. Besides, the prepared Fe 3 O 4 @PGMA@Au- l -cys showed high detection sensitivity (5 fmol IgG digest), approving enrichment capacity (75 mg g −1 ), satisfactory enrichment recovery (89.8%), and great performance in the analysis and profiling of low-abundance N-linked glycopeptides. Furthermore, the prepared material was employed in the enrichment of glycopeptides in intricate biological samples, and 774 unique N -glycosylation sites from 411 N -glycosylated proteins were reliably identified in three replicate analyses of a 75 μg protein sample extracted from mouse liver, suggesting wide application prospect in glycoproteomics.
研究领域:
分析化学
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蛋白质组学
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医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
·
2024
·
IF 5.3
Hui Shao,Bingqiao Yang,Huihua Luo,Huanyu Zhu,Ruiqi Ge,Jie Wu
In this study, N-OSS was explored as an efficient collector in the flotation of spodumene from albite. The flotation behaviors were examined by micro-flotation tests and the interaction mechanisms were comprehensively uncovered from atomical scale. It indicated N-OSS could effectively collect spodumene from albite at low temperature and N-OSS was more inclined to adsorb on spodumene surface than that on albite surface, thus significantly expanding the hydrophobicity difference. X-ray photoelectron spectroscopy (XPS) analysis suggested that N-OSS chemically interacted with both Ca and Al active sites on Ca-activated spodumene surface. Whereas, it weakly adsorbed on Ca-activated albite. Density functional theory (DFT) calculations reconfirmed that the adsorption of N-OSS on Ca-activated spodumene surface was more favorable than that on albite surface. The strong adsorption on spodumene was due to the hybridization reaction between the O 2p orbitals of C-O and C=O groups of N-OSS with Ca 4s orbitals as well as Al 3s orbitals on spodumene surface. Nevertheless, N-OSS weakly interacted with Ca atoms on Ca-activated albite due to steric hindrance. N-OSS exhibited selective collecting ability at low temperature in the flotation of spodumene from albite compared with conventional collector, which has promising prospects in the low-temperature flotation of spodumene from albite.
研究领域:
矿物加工工程
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材料科学与工程
·
计算化学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2020
·
IF 5.977
Ruizhi Tang,Yang Yu,Jing Dong,Yating Yao,Shujuan Ma,Junjie Ou,Mingliang Ye
In bottom-up strategy, specific enrichment of glycopeptides and phosphopeptides from complicated biological samples is a prerequisite for efficient identifying glycosylation and phosphorylation by mass spectrometry . Although there were a plethora of materials used as either hydrophilic interaction liquid chromatography (HILIC) or immobilized metal affinity chromatography (IMAC) adsorbents, even several bifunctional materials for simultaneous enrichment of glycopeptides and phosphopeptides, most of them are not easily commercialized as many other well-performing adsorbents due to the complicated preparation process. In our case, a one-step modification strategy was developed to prepare bifunctional adsorbents for HILIC and IMAC, employing O -phospho- l -serine as the modifier and poly(GMA- co -EDMA) microspheres, a kind of macroporous adsorption resin (MAR) with epoxy groups , as the matrix. The MARs were directly modified with O -phospho- l -serine under facile condition for HILIC strategy and further chelated with Ti 4+ for IMAC strategy. A total of 522 unique N -glycopeptides and 442 unique N -glycosylation sites mapped to 275 N -glycoproteins was identified from HeLa cell proteins, showing excellent enrichment efficiency in HILIC. Additionally, 3141 unique phosphopeptides were unambiguously identified from 200 μg of digest of HeLa cell proteins, demonstrating great enrichment efficiency in IMAC. Moreover, these materials have been successfully applied in the analysis of multiple biological samples including human serum and milk, demonstrating their feasibility for real sample applications and potential business value.
研究领域:
蛋白质组学
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生物化学
·
分析化学
✓ 已验证
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Qingsong Luo,Yan Chen,Changhao Feng,Shuang Gao,Tianyu Lan,Qiyuan Fu,Runduo Teng
For applications in environmental protection, industrial production, and personal health monitoring by breath exhalation, the sensitive and selective detection of n-butanol is of extreme importance. An n-butanol gas sensor has been developed utilizing LaFeO 3 nanofibers doped with Er 3+ by an electrospinning technique. Compared to the pure sample, the gas sensor shows an improved response of 58.97 to 30 ppm n-butanol, which was boosted by 5.99-fold due to the smaller average grain sizes (21.2 nm), porosity of the nanofiber, and abundant chemical-absorbed oxygen species (38.5%) at an Er doping level of 3 at%. It has excellent selectivity to n-butanol, a fast response/recovery time (17 s/27 s), superior stability during 30 days, and a low detection limit (100 ppb), which indicates that Er-doped LaFeO 3 nanofibers have excellent sensing capabilities for real-time n-butanol detection.
研究领域:
材料科学
·
环境科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF CHEMICAL ENGINEERING
·
2021
·
IF 3.171
Qinggele Borjihan,Quanfu Yao,Huihui Qu,Haixia Wu,Ying Liu,Alideertu Dong
Antibiotic-resistant bacteria contamination in environments imposes great threats to human life health. This research aims to develop novel targeted antibacterial biochars for achieving high selectivity to kill pathogenic Escherichia coli ( E. coli ). The glycopolymer N -halamine-modified biochars ( i.e ., BCPMA-Cl) were synthesized by the modification of biochars with poly[2-(methacrylamido) glucopyranose- co -acrylamide] (P(MAG- co -AM), followed by chlorination treatment. Based on the results of FTIR, turbidity, XPS, and UV–vis, BCPMA-Cl was successfully synthesized and demonstrated to be able to eliminate Staphylococcus aureus ( S. aureus ) and E. coli. Especially, BCPMA-Cl possessed extremely potent to specific-killing 10 4 CFU∙ml −1 of E. coli with lower hemolytic activity (<5%). Additionally, the antibacterial mechanisms of BCPMA-Cl against bacteria were contact-killing and release-killing contributed by active chlorine ( i.e ., Cl + ). Therefore, this work provided a cost-effective and facile approach for preparation of functional biochars used for bacteria-specific therapeutic applications via livestock pollutants as well as showing a promising strategy to avoid bacterial resistance.
研究领域:
环境科学
·
微生物学
·
材料科学
✓ 已验证
DOI
高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2012
·
IF 2.353
Xinghong Zhang,Yang Hou,Ping Hu,Changqing Hong
This paper has systematically investigated the dispersion behavior of ZrB 2 nanopowders in n-butanol solution and the adsorption mechanism of gallic acid on ZrB 2 . Gallic acid was found to be effective as a dispersant, which could provide stabilization of ZrB 2 particles in the suspension. The stability of ZrB 2 suspension and the adsorption amount of gallic acid were increased with increasing of gallic acid content (up to 6 wt%), and the pH value did not need to be adjusted. The results of Fourier transform infrared spectroscopy (FTIR) measurement and computer simulation revealed that the adsorption of gallic acid involved the interaction of two adjacent OH groups with Zr ions on the particle surfaces and complexation, which formed mononuclear chelate through a Zr atom binding to O atoms at position 3 and 4, or binuclear chelate by two Zr atoms replacing H atoms at position 4 and 5.
研究领域:
材料科学
·
表面化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）