JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2020
·Vol. 31
·期 13
·10657-10668
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IF 2.22
Li Lingjiao,Xu Jing,Li Xuanhao,Liu Zeying
Previous reports indicate that the catalyst Cd x Zn 1− x S shows good activity and reliability in the process of photocatalytic hydrogen production. However, it is still a challenge to design a cost-effective catalyst to replace the traditional Cd x Zn 1− x S. In this work, Roman broccoli Cd 0.8 Zn 0.2 S-2 was successfully prepared through reasonable adjustment and control of the amount of raw materials. In the photocatalytic hydrogen evolution test, the amount of hydrogen evolution of CZS-2 was 1.24, 1.34, 2.06, and 2.24 times that of CZS-1, CZS-3, CZS-4, and CZS-5, respectively. This is because Cd 0.8 Zn 0.2 S-2 has more excellent synergy inside. Theoretical and experimental studies show that, based on rational design, the optical and electrical properties of the CZS-2 structure have been substantially improved (based on UV–Visible diffusion and photoluminescence). The mechanism of the study shows that the photocatalytic hydrogen evolution activity of CZS-2 is effectively improved due to the favorable energy band of effective charge transfer inside CZS-2. In this work, Roman broccoli-like CZS-2 provides a new research direction for photocatalytic water decomposition.
研究领域:
材料科学
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光催化
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能源转换
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DOI
高影响因子
ANALYTICAL LETTERS
·
2025
·
IF 1.8
Xiu Qin,Dongling Meng,Yun Zhou,Xueqin Xu,Binglin Lu,Yuling Pan,Zhiyan Chen
We developed a green one-step method using broccoli pedicels to synthesize carbon quantum dots (CQDs) for selective sensing of Sunset Yellow. The analyte quenched the fluorescence of CQDs through its inner filter effect. A straightforward and reliable fluorescence quenching method using CQDs as probes in monitoring Sunset Yellow was established. The approach showed linearity from 0.1 to 50 µM with a 0.08 µM detection limit and performed well in real samples. This fluorescence-based method holds potential for further investigation and widespread adoption in the food industry.
研究领域:
食品科学
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材料科学
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环境分析
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产品关联
DOI
高影响因子
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
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2022
·Vol. 48
·期 7
·8315-8324
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IF 2.807
Man Huasheng,Chaima Mamoun,Wang Xiangyang,Xiu Lili,Yang Lijun,Huang Jianying
The determination of organophosphorus pesticide (OP S ) residues is of great significance to the evaluation and monitoring of food quality. In this study, nitrogen-, sulfur-, and silicon-co-doped carbon dots (CDs) were prepared from broccoli leaves and stems using a hydrothermal method and applied in fluorescent detection of organophosphorus pesticides. The prepared N-, S- , Si -doped CDs are water-dispersible and hydrophilic with good fluorescent properties. It was found that fluorescence of the prepared CDs could be selectively quenched by Fe 3+ derived from Fe 2+ oxidation by hydrogen peroxide. A linear relationship between the fluorescence of CDs and concentration of Fe 3+ was established in a range of 0 − 200 µM, and its specific detection limit was 1.43 µM. CDs/Fe 2+ /acetylcholinesterase (AChE) fluorescent system was subsequently established to detect and quantify OPs residues in food samples based on the AChE inhibition strategy with a good linear range of 0.01 − 1.0 µM of O , O -dimethyl- O -2,2-dichlorovinyl phosphate (DDVP) concentration. A low detection limit of 8.0 nM was achieved. The hetero-atoms-doped CDs, which could be prepared from agro-wastes on a large scale, have great potential for the rapid real-time detection of OPs in authentic food samples with low detection values.
研究领域:
食品科学
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分析化学
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环境科学
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DOI
高影响因子
JOURNAL OF FOOD BIOCHEMISTRY
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2017
·Vol. 41
·期 5
·e12387
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IF 1
Yaojie Zhang,Zhenyu Jiang,Lizhi Wang,Lishan Xu
Broccoli is a health-promoting food and its enormous byproducts, such as leaves and stalks, are a promising source of valuable components. In this study, extraction optimization, antioxidant, and hypoglycemic activities in vitro of polysaccharides from broccoli byproducts (PBB) were investigated. Plackett–Burman design, response surface methodology were applied to optimize the extraction of PBB. The optimal extraction conditions with a yield of (16.59 ± 0.04) % for extraction of PBB were determined as extraction temperature 82°C, extraction time 212 min and ratio of water to raw material 26 mL/g. And, PBB-1obtained from deproteinization and decolorization of PBB was separated into two fractions: PBB-1a and PBB-1c by DEAE-Sepharose. PBB-1c exhibited better bioactivities than PBB-1and PBB-1a, including antioxidant, -amylase, and -glucosidase inhibitory activities. Overall, these data suggest significant potential for the antioxidant and hypoglycemic activities of PBB-1c indicating the need for their further exploration as functional food ingredients or complementary medicine. Practical applications Byproducts from broccoli industrial processing represent between 60 and 70% of the broccoli plant weight, but they are also a promising source of valuable components. Currently, polysaccharides have attracted extensive attention due to their various biological and pharmacological activities, including antioxidant, hypoglycemic, and anticancer. Therefore, the present study aimed at optimizing the extraction process to extract polysaccharides from broccoli discarded waste having in view applications in food and pharmaceutical industries.
研究领域:
食品科学
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生物化学
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产品关联
DOI
高影响因子
PHYSIOLOGIA PLANTARUM
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2022
·Vol. 174
·期 2
·e13650
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IF 5.081
Hua Huang,Ying Hu,Ling Wang,Fengjun Li,Youxia Shan,Qiaoqiao Lian,Yueming Jiang
Plant cuticle as hydrophobic barrier covers almost all aerial plant organs. Herein the cuticular chemical components and the transpiration of various organs of Chinese flowering cabbage (CFC) and Chinese kale (CK) were comprehensively characterized. Numerous species- and organ-specific differences in morphological, chemical, and physiological levels were found. The various organs were relatively smooth in surface for CFC but glaucous with hollow tube- and plate-type crystals for CK. The chemical composition of cuticular waxes were very-long chain n -alkanes, ketones, secondary alcohols with a prominent carbon chain of C 29 in CK, primary alcohols dominated by C 26 , and aldehydes prominently C 30 in CFC. Cutin monomers accumulated with similar levels as waxes and were dominated by α , ω -dicarboxylic acids and fatty acids without added groups. The minimum water conductance differed considerably among species and various organs ranging between 8.9 × 10 −5 (CK leaf) and 3.7 × 10 −4 m s −1 (CFC leaf petiole). These differences in transpiration properties were proposed to be largely related to the cuticular chemicals in various organs and species. The presented results provide further insights to link the transpiration barrier functions with surface characteristics and cuticular chemicals.
研究领域:
植物学
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生理学
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产品关联
DOI
PubMed
高影响因子
Horticultural Plant Journal
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2022
·
IF 4.24
Xiaoxin Huang,Bing Cheng,Yaqin Wang,Guangmin Liu,Liping Hu,Xiaolu Yu,Hongju He
Glucosinolates (GLS) contribute to the unique flavour, nutrition, and plant defence of the Cruciferous vegetables. Understanding the GLS changes through postharvest processing is essential for defined preservation. In this study, four different fresh-cut types, whole flower (W), floret (F), quarterly cut floret (QF) and shredded floret (FS) of broccoli, were stored for 0, 1, 2 and 3 day (s) to explore GLS responses to postharvest treatments. As a result, seven GLS were identified, mainly including glucoraphanin (RAA), neoglucobrassicin (NEO), and glucobrassicin (GBC) and accounting for 52.69%, 20.12% and 14.99% of the total GLS (21.92 ± 0.48) μmol · g -1 DW, respectively. FS had the sharpest decrease in GLS after three days of storage (6.55 ± 0.37) μmol · g -1 DW, while QF had the least (10.16 ± 0.33) μmol · g -1 DW. All GLS components decreased over storage, except for 4-methoxyglucobrassicin (4 ME) in FS and QF, suggesting its key role in serious wound defence. The results suggested certain postharvest approaches influenced the flavour and nutrition of broccoli.
研究领域:
食品科学
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植物化学
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产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
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2023
·
IF 8.4
Yunpeng Wang,Yue Niu,Ruiting Hao,Jing Zhou,Meng Guo,Ying Liu,Wenbo Liu,Yanwei Chang,Hao Li,Yao Wang,Guofu Zhou
Structure nanocrystallization dramatically enhances the specific surface area and is one of the most popular methods for preparing high-performance gas sensing materials. However, most of the preparation methods are suffering high-cost and long time-consuming. This work synthesized Cu 2 ZnSnS 4 (CZTS), a cost-effective and stable direct-bandgap semiconductor with cauliflower-like morphology by facile solution drop coating and low-temperature annealing. The morphology and gas sensing performance of CZTS films could be modulated by controlling the annealing time. The gas sensors showed a significant response toward ppb-level NO 2 (1.287 toward 50 ppb) with a short response, recovery time, and high selectivity at room temperature (25 °C). It is worth mentioning that the limit of detection is 50 ppb, which is the first report on the ppb-level detection ability of CZTS-based NO 2 gas sensors. The enhanced sensitivity of the cauliflower-like CZTS nanocrystal-based gas sensor can be ascribed to the small grain size, large specific surface area for effective gas diffusion, and excellent conductivity of the spherical packed structure.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
JOURNAL OF MATERIALS CHEMISTRY
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2011
·Vol. 21
·期 19
·6962-6967
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IF 5.101
Min Wang,Chen Chen,Jiping Ma,Jie Xu
A new superhydrophobic material with cauliflower morphology was prepared with a one-step introduction of organic groups on the materials surface. Rough surface structure and heterogeneous surface chemical composition could be directly obtained. Adjustment of the phenyl group content was utilized to modulate the surface wettability, and different hydrophilic, hydrophobic, and superhydrophobic materials could be obtained by simply controlling the ratio of phenyl groups and silanols. The dynamic wettability of the superhydrophobic materials could be flexibly tuned between water repellent and water adhesive by the adjustment of the surface chemical composition. Especially the unique water-adhesive superhydrophobic material demonstrates capacity in solid and water transfer, and it may show wide application in the future.
研究领域:
材料科学
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表面化学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
·
2019
·
IF 5.399
Mingwei Wang,Hailiang Nie,Dandan Han,Xiaoqiang Qiao,Hongyuan Yan,Shigang Shen
New cauliflower-like phloroglucinol-glyoxylic acid resin microspheres (PGRMs) with controllable diameters and tuneable surface roughness were prepared using a one-step environmentally-friendly method without a catalyst. The PGRMs obtained exhibited a rough surface, narrow size distribution, and excellent adsorption capacity for polar compounds. The PGRMs were employed as an adsorbent for solid phase extraction (SPE) of kinetin (KT) and 6-benzyladenine (6-BA) in cucumbers and demonstrated better extraction recoveries and purification efficiency than phloroglucin-formaldehyde resin and common commercial adsorbents. Our PGRMs–SPE–HPLC method showed good linearity (r ≥ 0.9997) ranging from 0.04 to 4.00 μg/g for KT and 6-BA, and recoveries at three spiked concentration ranged from 77.8% to 104.4% with RSDs ≤ 6.8%. This PGRMs–SPE–HPLC method was applied successfully to determine of KT and 6-BA in cucumbers.
研究领域:
分析化学
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食品科学
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产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
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2022
·Vol. 46
·期 22
·10594-10602
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IF 3.925
Sihui Huang,Chuanxiang Qin,Linyan Niu,JianJun Wang,Jun Sun,Lixing Dai
In this study, TiO2/CuS nanocomposites with cauliflower-like protrusions were successfully prepared using a simple one-step hydrothermal method with the assistance of 3-mercaptopropionic acid (3-MPA). The TiO2 and CuS formed heterojunction materials with a stable crystal phase during hydrothermal treatment. The as-prepared TiO2/CuS was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), ultraviolet-visible diffuse reflectance spectroscopy (DRS) and X-ray photoelectron spectroscopy (XPS). Besides, the photocatalytic performance of the nanocomposite material was detected in Rhodamine B (RhB) solution. Results indicate that TiO2/CuS nanocomposites exhibit higher photocatalytic performance than the TiO2 and CuS controls, this can be attributed to their distinctive morphology, strong light absorption capacity and effective promotion of the heterojunction between TiO2 and CuS.
研究领域:
材料科学
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环境科学
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产品关联
DOI
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 53
·48043-48048
·
IF 3.289
Ying Duan,Ye Chen,Qing Wen,Tigang Duan
We have developed a simple and effective way to fabricate Ti/Sb–SnO2 electrodes by electrodeposition from a dimethyl sulfoxide solution. The electrode surface exhibits a distinct cauliflower-like structure with a small grain size. Its electrochemical properties have been evaluated by electrochemical impedance spectroscopy and accelerated service life tests; furthermore, the results were compared with those obtained for an electrode prepared from aqueous solution. The DMSO-prepared electrode has low charge transfer resistance (22.71 vs. 107.60 Ω) and high stability (59.3 vs. 2.8 h). Moreover, its ability to electrochemically decolorize methyl orange and rhodamine B is greatly improved.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
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2016
·
IF 7.476
Fengping Zhan,Xiaolei Liao,Feng Gao,Weiwei Qiu,Qingxiang Wang
A novel electrochemical DNA biosensor has been facilely constructed by in-situ assembly of electroactive 4′-aminobenzo-18-crown-6-copper(II) complex (AbC-Cu 2+ ) on the free terminal of the hairpin-structured molecule beacon. The 3′-SH modified molecule beacon probe was first immobilized on the gold electrode (AuE) surface through self-assembly chemistry of Au–S bond. Then the crow ester of AbC was covalently coupled with 5′–COOH on the molecule beacon, and served as a platform to attach the Cu 2+ by coordination with ether bond (–O–) of the crown cycle. Thus, an electroactive molecule beacon-based biosensing interface was constructed. In comparison with conventional methods for preparation of electroactive molecule beacon, the approach presented in this work is much simpler, reagent- and labor-saving. Selectivity study shows that the in-situ fabricated electroactive molecule beacon remains excellent recognition ability of pristine molecule beacon probe to well differentiate various DNA fragments. The target DNA can be quantatively determined over the range from 0.10 pM to 0.50 nM. The detection limit of 0.060 pM was estimated based on signal-to-noise ratio of 3. When the biosensor was applied for the detection cauliflower mosaic virus 35s (CaMV 35s) in soybean extraction samples, satisfactory results are achieved. This work opens a new strategy for facilely fabricating electrochemical sensing interface, which also shows great potential in aptasensor and immurosensor fabrication.
研究领域:
生物化学
·
分析化学
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分子生物学
✓ 已验证
DOI
PubMed
高影响因子
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