Article
Chemistry, Multidisciplinary
Hesham H. El-Feky, Alaa S. Amin, Eslam M. Moustafa
Summary: A sensitive, selective, and reversible optical sensor for cobalt(ii) ions was developed. The sensor demonstrated a good linear range and low detection limit, and showed excellent selectivity and stability in environmental samples with complicated matrices.
Article
Chemistry, Analytical
Alexa Rihana-Abdallah, Zhe Li, Katherine C. Lanigan
Summary: The determination of heavy metals in drinking water is crucial for quality assessment and pipeline corrosion detection. This study developed a simple, cost-effective method based on cloud point extraction for preconcentration and determination of iron, lead, and cadmium, with a 20-fold reduction in detection limit. Results demonstrate high accuracy and reproducibility of this method for the analysis of iron, lead, and cadmium in water samples by FAAS.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Ivero Pita de Sa, Gilberto Batista de Souza, Ana Rita de Araujo Nogueira
Summary: A new method for determining Cr(VI) in organic fertilizers was developed, utilizing adjustments in extraction and cloud point extraction methods to accurately quantify Cr(VI) content and meet regulatory requirements.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Applied
Meltem Saylan, Berfin Metin, Hilal Akbiyik, Fatma Turak, Gulten Cetin, Sezgin Bakirdere
Summary: In this study, a new analytical strategy based on CdS-NPs-DSPE was developed for the determination of copper ions in artichoke leaves. The CdS-NPs were synthesized using microwave-assisted reaction and characterized by SEM, XRD, and FT-IR. The method showed a linear calibration plot and a low detection limit, and was validated by spiking experiments. It can provide accurate and precise determination of copper ions in artichoke leaves.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2023)
Article
Chemistry, Analytical
Siyu Gu, Xudong Huang, Mingli Chen, Jixin Liu, Xuefei Mao, Xing Na, Guoying Chen, Yunbin Shao
Summary: A novel IDBD reactor coupled with ETV was established for arsenic determination, investigating the evolution mechanisms of arsenic species using XPS. DBDA atomizes arsenic nanoparticles while DBDT traps and releases arsenic oxides, enhancing sensitivity and precision in seafood sample analysis. The method shows potential for rapid arsenic analysis based on direct solid sampling ETV instrumentation.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Nail Altunay, Adil Elik
Summary: A new and green analytical method using UA-alkanol-based-SUPRAS-ME coupled with FAAS detection was developed for extraction and determination of cadmium in food and environmental samples, showing good linear calibration graphs, acceptable limits of detection, and reliable recovery rates. Total cadmium concentrations were successfully determined in the specified ranges for both food and environmental samples.
MICROCHEMICAL JOURNAL
(2021)
Review
Chemistry, Analytical
Swadesh Mandal, Susanta Lahiri
Summary: Cloud point extraction (CPE) is a greener alternative to conventional separation techniques in the field of analytical chemistry. This article provides an overview of various aspects of CPE and its recent developments, focusing on the extraction and speciation of metal ions and anionic species. The article also briefly discusses the extraction and determination of nanoparticles by CPE.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Naomi Akiba, Rodrigo S. N. Mancini, Alexandre Zatkovskis Carvalho, Ivanise Gaubeur
Summary: The study presents a computer-controlled multicommuted flow-batch system for the online cloud point extraction of metal ions followed by high-resolution continuum source flame atomic absorption spectrometric detection. By optimizing parameters, a wide linear range, low detection limit, low quantification limit, and low coefficient of variation were achieved.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Applied
Hassan Elzain Hassan Ahmed, Ali Mohammednour Ali Mohammed, Mustafa Soylak
Summary: A novel magnetic Luffa@TiO2 sorbent was synthesized and characterized for the solid phase extraction of Pb(II). Optimized analytical parameters and validated with certified reference materials, the method showed good preconcentration efficiency and low detection and quantification limits for both liquid and solid samples.
Article
Chemistry, Applied
Mohammad Hassan Amini, Hassan Alijani, Mostafa Hossein Beyki
Summary: In this study, a novel imprinted polymer was developed for selective and efficient capture of toxic cadmium. By optimizing the conditions, the best adsorption performance was obtained. The method successfully preconcentrated cadmium in fish, lettuce, and liver.
Article
Food Science & Technology
Rumeysa ozcan, Nursu Aylin Kasa, Emine Gulhan Bakirdere, Sezgin Bakirdere
Summary: In this study, a cloud point extraction method was optimized for cobalt determination by SQT-FAAS. The method showed significant enhancement in detection power and was validated with real samples, demonstrating high accuracy and applicability.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2021)
Article
Chemistry, Analytical
Maria N. Oviedo, Emiliano F. Fiorentini, Aldana A. Lemos, Rodolfo G. Wuilloud
Summary: This study achieved efficient separation and preconcentration of inorganic Sb species in different water samples using a novel DLLME method based on MIL and ETAAS, showing high sensitivity and selectivity. Multivariate study was conducted to obtain optimal extraction conditions, and the method demonstrated excellent analytical performance.
ANALYTICAL METHODS
(2021)
Article
Chemistry, Applied
Aminul Islam, Saman Rais
Summary: A 3D Fe3O4@MWCNT-CdIIP was synthesized by oxidizing the surface of multi-walled carbon nanotubes and then terminating it with an ion-imprinted polymer. The artificial neural network outperformed the central composite design methodology in predicting the optimal adsorption conditions. Under the optimized conditions (pH 5.6, time 15 min, concentration 800 μg/mL, temperature 25 °C), the adsorption capacity of Cd(II) was 109 mg/g (2.5 times higher than non-imprinted polymer) according to the Toth isotherm. The developed solid phase extraction method coupled with flame atomic absorption spectrometry showed selective recognition towards Cd(II), with a limit of detection of 1.13 μg/L and a limit of quantification of 3.21 μg/L after preconcentration (preconcentration factor 50), and demonstrated good robustness. The method was successfully applied to determine Cd(II) in various food samples, water, wastewater, and also showed efficient removal (>95%) of anionic dyes using Cd(II) loaded IIP.
Review
Nutrition & Dietetics
Ingrid Hagarova, Lucia Nermcek
Summary: This article introduces cloud point extraction, a technique often used in conjunction with spectrometric analysis to efficiently separate and quantify selenium in food. It is of particular importance for understanding selenium levels in different food products.
Article
Chemistry, Analytical
Yunjia Yang, Man He, Beibei Chen, Bin Hu
Summary: By synthesizing a novel adsorbent Fe3O4@SiO2/GO-NH2, a new method combining magnetic solid phase extraction (MSPE) and graphite furnace atomic absorption spectrometry (GFAAS) was developed for fast and efficient detection of trace arsenic species in water samples. After experimental optimization, the method achieved a detection limit of 1.02 ng L-1 for As(V) and provided accurate analysis results in real water samples.
Article
Materials Science, Multidisciplinary
Yufan Lin, Shengping Wen, Xiangfang Peng, Yuhua Cai, Lihong Geng, Binyi Chen
JOURNAL OF MATERIALS RESEARCH
(2020)
Article
Nanoscience & Nanotechnology
Yu Su, Shengping Wen, Xiaojun Luo, Feihu Xue, Shaojun Wu, Baozhen Yuan, Xuanzhao Lu, Chenxin Cai, Li-Ping Jiang, Ping Wu, Jun-Jie Zhu
Summary: The synthesized CMSS NPs with a unique structure showed improved applicability in SERS-based biomedicine, demonstrating excellent stability and sensitivity, and outstanding performance in single-cell and in vivo tumor imaging.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Analytical
Ke Su, Guoqiang Xiang, Xinrong Jin, Xin Wang, Xiuming Jiang, Lijun He, Wenjie Zhao, Yaming Sun, Chen Cui
Summary: The research successfully prepared water-soluble fluorescent nitrogen-doped carbon dots (N-CDs) from locust powder through a self-exothermic reaction, and characterized them using various analytical methods. N-CDs exhibited excitation wavelength dependent fluorescence emission behavior with a strong emission peak at 470nm under 390nm excitation wavelength, and can be quenched by sunset yellow (SY), demonstrating high selectivity and sensitivity towards SY.
Article
Materials Science, Multidisciplinary
Peihao Zhao, Xiaolan Wu, Kunyuan Gao, Shengping Wen, Li Rong, Hui Huang, Wu Wei, Zuoren Nie
Summary: The influence of Zn/Mg ratio on microstructure and mechanical properties of Al-Zn-Mg alloys with the same Zn + Mg contents was investigated. It was found that the alloy with a Zn/Mg ratio of 2.38 had the highest Vickers hardness after aging at 120 degrees C for 48 h, indicating an optimum microstructure and mechanical properties.
Article
Metallurgy & Metallurgical Engineering
Pei-hao Zhao, Xiao-lan Wu, Yang Liu, Kun-yuan Gao, Sheng-ping Wen, Wu Wei, Li Rong, Hui Huang, Hong Wu, De-jing Zhou, Qian Zhang, Zuo-ren Nie
Summary: The effect of grain morphology and precipitates on the mechanical properties and corrosion behavior of two commercial 7N01 alloys was studied. The study found that the recrystallization degree and distribution of grain boundary precipitates play a role in determining the strength and corrosion resistance of the alloys.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2022)
Article
Materials Science, Multidisciplinary
Dongmei Wang, Xiaolan Wu, Kunyuan Gao, Shengping Wen, Hong Wu, Jingwen Qiu, Wu Wei, Hui Huang, Dejing Zhou, Zuoren Nie
Summary: The microstructure, mechanical properties, and tribological properties of Al-Sn-Si alloys with different Mg contents were studied. The Al-12Sn-4Si-1.5 Mg alloy exhibited the smallest grain size, more uniform microstructure, and significantly better wear resistance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Da Xue, Wu Wei, Wei Shi, Xiaorong Zhou, Li Rong, Shengping Wen, Xiaolan Wu, Peng Qi, Kunyuan Gao, Hui Huang, Zuoren Nie
Summary: In this study, an artificial neural network (ANN) was used to predict the hot deformation behavior of Al-Mg-Zn alloys containing small amounts of Er and Zr. A comparative study between experimental and computational results showed that the ANN model outperformed the Arrhenius constitutive equation in predicting the thermal deformation behavior of the alloys.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Peng Qi, Bolong Li, Wu Wei, Jimin Chen, Tongbo Wang, Hui Huang, Kunyuan Gao, Shengping Wen, Xiaolan Wu, Li Rong, Xiangyuan Xiong, Wenjun Wu, Lian Zhou, Zuoren Nie
Summary: The microstructural evolution of Ti-6Zr-4Fe alloy solution and aging treated at different temperatures was investigated, and its effects on microhardness and Young's modulus were studied. The formation of the θ phase resulted in an increase in microhardness and Young's modulus in the alloy.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Materials Science, Multidisciplinary
Xingkai Hou, Peng Qi, Bolong Li, Shengping Wen, Wu Wei, Yutong Qi, Jiaming Yin, Zuoren Nie
Summary: The precipitation and intergranular corrosion behavior of Al-1.0Mg-0.6Si-Cu (wt.%) alloys with added Cu ranging from 0.3 to 0.6 wt.% were investigated. Results showed that the addition of Cu significantly improved the hardness of the alloys during under-aging by accelerating the precipitation of GP zones. Cu addition changed the composition of precipitation and facilitated the formation of beta ''-Mg5Si6 precipitates with high density and fine distribution. However, the intergranular corrosion resistance decreased with increasing Cu content, mainly due to the segregation of Cu elements and the formation of continuous Q ' precipitates at the grain boundaries.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Ke Su, Guoqiang Xiang, Chen Cui, Xiuming Jiang, Yaming Sun, Wenjie Zhao, Lijun He
Summary: Nitrogen-doped carbon dots (N-CDs) with peroxidase-like activity were prepared using locust powder as the carbon source. The obtained N-CDs showed high affinity for the chromogenic substrate TMB and H2O2, and a smartphone-based colorimetric method was developed for their detection. Additionally, a smartphone-based method was successfully applied for the determination of glucose in different food samples.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Shengping Wen, Yue Yuan, Jingfu Chen
Summary: A plastic detection scheme based on deep learning is proposed in this paper for a waste plastics sorting system based on vision detection. The scheme improves the YOLOX object detection model and DeepSORT multiple object tracking algorithm, making them more suitable for plastic sorting.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Bocong Li, Guoqiang Xiang, Gao Huang, Xiuming Jiang, Lijun He
Summary: A rapid, green synthesis strategy was developed using H2O2 and DETA as exothermic reactants for the preparation of highly luminescent carbon dots (G-CDs) from Ganpu tea infusion. The obtained G-CDs exhibited excitation-dependent characteristics and strong ultraviolet fluorescence emission. A new fluorescence assay was developed for the indirect determination of beta-Glu activity based on the quenching effect of p-NP on G-CDs fluorescence.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Jieming Gao, Hui Huang, Wei Shi, Wu Wei, Shengping Wen, Ying Han, Zuoren Nie
Summary: The effect of annealing treatment on the tensile properties, intergranular corrosion, macrostructure, and microstructure of Al-6.0Mg-1.0Zn-0.8Mn-0.2Cu-0.2Er-0.1Zr hot-rolled plate was studied. The optimal stabilization process for the hot-rolled plate was determined to be at 250 degrees C for 2 hours, based on the mechanical properties and corrosion resistance. The TEM analysis revealed that the T phase within the grains gradually grew and re-dissolved after annealing, with a change in morphology from square to short rod. The T phase at the grain boundaries showed good corrosion resistance.
CAILIAO GONGCHENG-JOURNAL OF MATERIALS ENGINEERING
(2022)
Article
Chemistry, Analytical
Wen Sheng-Ping, Zhu Jun-Jie
Summary: SERS technique, as a significant spectral analysis tool, demonstrates distinctive attributes like in situ nondestructive nature, finger recognition and single-molecule level detection, showing great potential in fields such as food safety, environmental monitoring, and biological analysis. This review focuses on the current progress of SERS-based biosensing and bioimaging, discussing possible development tendencies and prospects of SERS in bioanalysis in the future.
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2021)
Article
Materials Science, Multidisciplinary
Gao Chunlai, Gao Kunyuan, Xiong Xiangyuan, Huang Hui, Wen Shengping, Wu Xiaolan, Nie Zuoren
RARE METAL MATERIALS AND ENGINEERING
(2020)
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.