Review
Chemistry, Inorganic & Nuclear
Sobhan Chatterjee, Xin-Yue Lou, Feng Liang, Ying-Wei Yang
Summary: Surface-functionalized gold and silver nanoparticles, known as AuNPs and AgNPs, have attracted widespread attention due to their exceptional properties and specific surface plasmon resonance. They have been extensively studied as colorimetric and fluorescent sensors, showing great potential in various applications.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Maurice Retout, Bryan Gosselin, Amina Adrovic, Pascale Blond, Ivan Jabin, Gilles Bruylants
Summary: In this study, a thin and robust coating based on calixarene-diazonium salts was developed to maintain the anisotropic structure of silver nanoplates, resulting in increased lifetime and stability. This coated silver nanoplates were then used for the detection of rabbit immunoglobulin G and Anti-SARS-CoV-2 IgG, achieving a low limit of detection and successful detection in human plasma. Additionally, the wide range of colors provided by the silver nanoplates allowed for the design of a multicolor multiplex assay for simultaneous detection of multiple analytes.
Article
Materials Science, Multidisciplinary
Van-Tuan Hoang, Ngo Xuan Dinh, Nguyen Le Nhat Trang, Nguyen Tien Khi, Nguyen Van Quy, Pham Anh Tuan, Doan Quang Tri, Le Hong Thang, Tran Quang Huy, Anh-Tuan Le
Summary: An efficient colorimetric probe based on surface-functionalized silver nanoparticles was developed for sensitive detection of thiram pesticide in water samples, with amine-functionalized AgNPs showing higher stability and sensitivity in thiram detection. The probe exhibited a linear detection range from 0.1-100 mu M with a detection limit of 0.036 mu M, making it a promising platform for highly efficient detection of thiram in environmental water solutions.
MATERIALS RESEARCH BULLETIN
(2021)
Article
Chemistry, Analytical
Tuana Demircioglu, Mehmet Kaplan, Emine Tezgin, Omer Kaan Koc, Selen Durmazel, Aysem Uzer, Resat Apak
Summary: Water and soil pollution, especially caused by explosive residues, is a global environmental problem. This study developed a gold nanoparticles-based colorimetric probe for the detection of nitro-explosives TNT and tetryl. The probe showed high selectivity and sensitivity, and was not interfered by common soil ions and explosive mixtures.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Applied
Yen-Chang Su, Ai-Yu Lin, Cho-Chun Hu, Tai-Chia Chiu
Summary: A colorimetric assay utilizing fluorescein-functionalized silver nanoparticles was developed for selective and sensitive detection of tricyclazole. The method allowed for accurate quantification of tricyclazole in rice samples with good selectivity and successful monitoring capabilities.
Article
Chemistry, Physical
Rungroj Chanajaree, Chalita Ratanatawanate, Songtham Ruangchaithaweesuk, Vannajan Sanghiran Lee, Kitiyaporn Wittayanarakul
Summary: The silver nanoparticles complexed with curcumin extracted from turmeric are effective for detecting lead ions, with high selectivity and rapid detection. Results can be observed naked-eye within 20 minutes and are in good agreement with experimental results.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Chanon Talodthaisong, Pitiphoom Sangiamkittikul, Panupong Chongwichai, Apichart Saenchoopa, Saengrawee Thammawithan, Rina Patramanon, Suppanat Kosolwattana, Sirinan Kulchat
Summary: This study successfully synthesized and characterized andrographolide-stabilized silver nanoparticles (andro-AgNPs). The andro-AgNPs were utilized as a colorimetric sensor for detecting mercury ions in water and showed antibacterial properties.
Article
Nanoscience & Nanotechnology
Min Xia Quan, Qing Feng Yao, Qing Yu Liu, Zhen Qi Bu, Xue Zhi Ding, Li Qiu Xia, Jiao Yang Lu, Wei Tao Huang
Summary: This study demonstrated that AgNPs have multimode colorimetric sensing capabilities to different metal ions and can be utilized for molecular logic computing and molecular information protection. The AgNPs can quantitatively and sensitively detect Cr3+ and Hg2+ in actual water samples, and their multimode-guided multianalyte sensing processing can be used to construct logic gates and cascaded logic circuits. Additionally, the selective responses and molecular logic computing ability of AgNPs were used to develop molecular cryptosteganography for encrypting and hiding specific information.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Analytical
Xiaoming Ma, Hui Zhang, Jin Liu, Huifang Zhang, Xuan Hu, Yu Wang, Xun Li, Jianguo Xu
Summary: This article introduces an ultrahigh-resolution multicolor sensing platform for the specific detection of silver ions (Ag(I)), which can be used for environmental monitoring and food safety detection. By employing platinum nanoparticles (PtNPs) as nanozymes and binding with silver ions, the catalase-like activity responsible for hydrogen peroxide is hindered, resulting in highly oxidizing hydroxyl free radicals and etching of AuNRs. This method demonstrates a proportional response to the target concentration and is visible to the naked eye.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
Nadezhda S. Komova, Kseniya V. Serebrennikova, Anna N. Berlina, Svetlana M. Pridvorova, Anatoly V. Zherdev, Boris B. Dzantiev
Summary: The study developed a method for detecting trace amounts of Fe(III) ions using MSA-AuNPs and colorimetry, showing the effectiveness of MSA-AuNPs as a sensing probe. The detection limit achieved was more than 10 times lower than the maximum allowable concentration for drinking water defined by the World Health Organization, confirming the practicality and potential of the MSA-AuNP-based sensor for detecting Fe(III) in real water samples.
Review
Chemistry, Multidisciplinary
Tushar Kant, Kamlesh Shrivas, Ankita Tejwani, Khushali Tandey, Anuradha Sharma, Shashi Gupta
Summary: This review provides a comprehensive overview of portable colorimetric chemical sensing devices and their applications in clinical, environmental, and food safety domains. It covers different types of devices, such as handheld, RGB-based, paper-based, and wearable, and explores the underlying principles, functional materials, and detection mechanisms.
Article
Chemistry, Analytical
Yidan Wang, Yunlei Xianyu
Summary: This study reports a colorimetric sensing strategy based on the coordination chemistry between ascorbic acid 2-phosphate (AAP) and copper ions. The AAP with phosphate group can coordinate with copper ions, resulting in a color change from blue to green, which can be easily detected by the naked eye or a smartphone based on the blue-to-green (B/G) ratio. This coordination chemistry offers a facile and convenient approach for designing colorimetric assays. Alkaline phosphatase can modulate the AAP/AA transformation and the AAP-mediated coordination, providing a straightforward method for monitoring enzymatic activity. This colorimetric sensing strategy exhibits excellent stability, sensitivity, cost-effectiveness, and scalability, showing great potential as a point-of-care technique for diagnostic applications.
ANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Fei Hua, Fenglan Pan, Juanhua Yang, Yongkang Yan, Xueer Huang, Yali Yuan, Jinfang Nie, Hua Wang, Yun Zhang
Summary: This work presents two new colorimetric nanosensors for label-free and equipment-free quantitative detection of nanomolar concentrations of copper (II) (Cu2+) and mercury (II) (Hg2+) ions. The Cu2+ nanosensor utilizes the analyte to accelerate the formation of dispersed, uniform, spherical gold nanoparticles (AuNPs), resulting in a red solution. On the other hand, the Hg2+ nanosensor produces a blue solution consisting of aggregated AuNPs with various sizes and an enhanced Tyndall effect signal. By measuring the time of producing the red solution and the Tyndall effect intensity of the blue solution using a timer and a smartphone, respectively, the nanosensors achieve linear ranges and detection limits for Cu2+ and Hg2+.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Cibely S. Martin, Marcelo J. S. Oliveira, Mateus D. Maximino, Wallance M. Pazin, Carlos J. L. Constantino
Summary: The excessive concentration of nanomaterials and pesticides can pose a risk to human health. This study evaluated the individual and mixture effects of silver nanoparticles and thiram pesticide on lipid bilayers. The results showed a synergetic effect of the mixture, leading to a loss of phase contrast intensity and rupture of the lipid bilayers.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Applied
Benediktas Brasiunas, Anton Popov, Arunas Ramanavicius, Almira Ramanaviciene
Summary: A colorimetric sensor based on a redox reaction between AuCl4- ions and reducing sugars was developed, with different sugars showing varied reaction rates and LOD values. The sensitivity of the sensor can be enhanced by prolonging the reaction time, and the linear range for different sugars differs, with distinct LOQ values observed.
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.