Article
Chemistry, Analytical
Hui-Min Zhai, Bin Ji, Shan-Shan Tian, Fang Fang, Shuang Zhao, Zhi-Yong Wu
Summary: This study introduces a new method for Cr speciation analysis based on a paper-based analytical device (PAD), which uses electrokinetic separation and stacking to separate and recover Cr (VI) and Cr (III) with high sensitivity and recovery rates. This fast, cheap, and easy-to-use sample pretreatment method can be applied for direct analysis of Cr (VI)/Cr (III) in electroplating wastewater samples.
Article
Engineering, Electrical & Electronic
Jaligam Murali Mohan, Sanjeet Kumar, Khairunnisa Amreen, Arshad Javed, Satish Kumar Dubey, Sanket Goel
Summary: One of the most common plasticizers that can cause endocrine disruption is phthalates, which are widely used in the production of consumer plastic items. This increases the risk of exposure to phthalates in items stored in water bottles, beverage drinks, and food. The detection of phthalates is crucial for food safety and quality. A point-of-care, screen-printed, disposable paper device was developed for the detection of phthalates, integrated with buckypaper for efficient detection. The device showed promising results and has the potential to be used as a point-of-care testing platform.
IEEE SENSORS JOURNAL
(2023)
Article
Chemistry, Analytical
Iana V. S. Arantes, Thiago R. L. C. Paixao
Summary: This article reports the first study of combining batch injection analysis (BIA) with a microfluidic paper-based analytical device (BIA-μPAD) using CO2 laser pre-treated chromatographic paper with pencil-drawn electrodes. The BIA-μPAD showed good linearity, recovery values, and repeatability, with a sampling frequency comparable to traditional BIA apparatus.
Article
Chemistry, Analytical
Yingying An, Wan Wang, Qing Lv, Qing Zhang, Xiayan Wang
Summary: This paper introduces a paper-based analytical device (PAD) for simultaneous sensing of total chromium and hexavalent chromium. The device integrates electrochemical detection, fluid driving, online oxidation, and colorimetric detection, and provides dual readouts for the detection. The device shows low detection limits, good repeatability, and has high application prospect in on-site rapid Cr speciation.
Article
Chemistry, Analytical
Lorena Placer, Isela Lavilla, Francisco Pena-Pereira, Carlos Bendicho
Summary: This study presents the development of a 3D origami microfluidic paper-based analytical device (3D mu PAD) for the determination of iodide and iodate in edible seaweeds by colorimetric detection using a smartphone. The addition of a methacrylate holder improved the interlayer contact in 3D mu PADs, resulting in enhanced sensitivity and precision, as well as real-time monitoring. The assay relies on the formation of a blue triiodide-starch complex at the detection areas of the 3D mu PAD, providing an affordable, fast, and environmentally friendly method for simultaneous determination of inorganic iodine species. Under optimal conditions, the method achieved low limits of detection and quantification for iodide and iodate.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Chemistry, Analytical
A. Vinotha Alex, Tushar Deosarkar, N. Chandrasekaran, Amitava Mukherjee
Summary: In this study, a rapid and precise sensing strategy based on AChE inhibition was proposed for the detection of malathion using Ag-GO and ATCh. The nanocomposite of Ag-GO was successfully developed for the rapid and accurate detection of malathion, with good recovery rates in different samples.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Dan Liu, Jiahui Ji, Xinran Guo, Sanhu Gou, Xinyue Chen
Summary: Silver nanoparticles (AgNPs) were green-synthesized for the first time using Hedysarum polysaccharide (HPS) as a reducing agent, stabilizer, and modifier. Thiamazole was found to induce the aggregation of HPS-AgNPs on a cellulose membrane. A syringe paper-based analytical device was developed for the detection of thiamazole in biological samples, with a linear regression curve and a detection limit of 24.6 nM.
Article
Chemistry, Multidisciplinary
Mohammad Oves, Mohd Ahmar Rauf, Huda A. A. Qari
Summary: Biogenic silver nanoparticles (BAgNPs) were synthesized using Bougainvillea glabra paper flower extract through green chemistry, where the flower extract acted as a biological reducing agent to convert Ag+ cations to Ag-0 ions. Physical techniques such as UV-visible, SEM, TEM, DLS, XRD, and FTIR were employed to characterize the BAgNPs, revealing spherical to oval nanoparticles with a size range of 10 to 50 nm. The antibacterial properties of the biologically produced BAgNPs were investigated through spectroscopy and microscopic analysis, and their potential mechanism of action was studied through interactions with bacterial strains and mammalian cancer cell systems in vitro. The results suggest that biologically produced nanomaterials, such as BAgNPs, have the potential for biomedical applications in inhibiting bacterial growth and cancer cell growth in culture conditions.
Article
Biochemistry & Molecular Biology
Pasakorn Jutakridsada, Totsaporn Suwannaruang, Pornnapa Kasemsiri, Natthida Weerapreeyakul, Jesper T. N. Knijnenburg, Somnuk Theerakulpisut, Khanita Kamwilaisak, Prinya Chindaprasirt
Summary: AgNPs/Ag-cCNC were prepared from Eucalyptus pulp using a three-step process. The Ag-cCNC exhibited slow and controllable release of Ag+ ions and showed potential anticancer activity in MCF-7 cells. The samples also demonstrated shear thinning properties, making them suitable for drug delivery by injection.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Chemistry, Analytical
Congling Yang, Rui Jian, Ke Huang, Qilin Wang, Bo Feng
Summary: A method was developed for speciation analysis and accurate detection of silver ions and silver nanoparticles at trace levels. The results indicate that silver nanoparticles anchored on polydopamine/titania nanotubes play a crucial role in bactericidal action, while released silver ions synergistically enhance the antibacterial activity.
MICROCHEMICAL JOURNAL
(2021)
Article
Engineering, Biomedical
Akkapol Suea-Ngam, Ilada Choopara, Shangkun Li, Mathias Schmelcher, Naraporn Somboonna, Philip D. Howes, Andrew J. deMello
Summary: This study presents a rapid, highly sensitive, and quantitative colorimetric paper-based analytical device (PAD) based on silver nanoplates and loop-mediated isothermal amplification (LAMP), demonstrating its application in single copy detection. The PAD allows qualitative analysis by the naked eye and quantitative analysis using a smartphone camera, running the entire assay in situ on the paper surface.
ADVANCED HEALTHCARE MATERIALS
(2021)
Article
Chemistry, Analytical
Nidhi Dhull, Kajal Jindal, Mallika Verma, Monika Tomar
Summary: This study focuses on the fabrication of low-cost, high sensitivity, and high specificity paper-based biosensors using commonly accessible materials. The electrodes are drawn with a pencil and filled with homemade graphite ink, and the barrier wall is prepared using a glue gun. The developed paper-based analytical device shows promising results for the detection of E. coli O157:H7 and provides an economical and highly selective biosensing platform.
ANALYTICAL LETTERS
(2022)
Article
Chemistry, Analytical
Mason E. Bonacci, M. Ines G. S. Almeida, Yanlin Zhang, Spas D. Kolev
Summary: This study developed a novel microfluidic paper-based analytical device (μPAD) for the speciation of inorganic arsenic in environmental aqueous samples. The device showed advantages of simplicity, high sensitivity, and low detection limit.
Article
Biochemical Research Methods
Yulian Tang, Xue Lv, Wenxin Gou, Xuemei Zhou, Junkai Hao, Jing Feng, Yuji Qi, Lei Hu, Zhengquan Yan
Summary: A bioactive folic acid-enhanced silver nanozyme was developed for efficient and convenient monitoring of dopamine. The nanozyme exhibited superior peroxidase-like activity and selective recognition for dopamine, enabling visual detection through color change. The method showed good recovery and stability when applied to real samples.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Environmental
Jian Zhao, Xinjie Wang, Son A. Hoang, Nanthi S. Bolan, M. B. Kirkham, Jingnan Liu, Xinghui Xia, Yang Li
Summary: This review discusses the chemical transformations of silver nanoparticles (AgNPs) in sediments, which can mitigate their toxicity and affect organisms in sediments, transferring through the food web. Further research using novel techniques and mathematical models is needed to investigate diverse chemical transformations in various sediments.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Analytical
Shu-an Xia, Anqin Leng, Yao Lin, Li Wu, Yunfei Tian, Xiandeng Hou, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2019)
Article
Chemistry, Analytical
Rui Yang, Yao Lin, Buyun Liu, Yubin Su, Yunfei Tian, Xiandeng Hou, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Analytical
Zhao He, Yao Lin, Yao Wang, Liangbo He, Xiandeng Hou, Chengbin Zheng
ANALYTICAL CHEMISTRY
(2020)
Article
Chemistry, Multidisciplinary
Tao Chen, Yao Lin, Haochen Li, Rui Yang, Xiandeng Hou, Baozhan Zheng, Chengbin Zheng
CHINESE CHEMICAL LETTERS
(2020)
Article
Chemistry, Analytical
Yijing Luo, Yubin Su, Yao Lin, Liangbo He, Li Wu, Xiandeng Hou, Chengbin Zheng
Summary: Despite the challenges posed by expensive instrumentation and harsh digestion processes, MnFe2O4 micromotors were found to efficiently detect arsenic in rice samples within 100 minutes using H2O2, also demonstrating sensitive determination of arsenic in water samples. This novel method shows promising potential for sensitive on-site detection of arsenic in rice and water samples.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Analytical
Shige Xing, Yao Lin, Liangyuan Cai, Prem N. Basa, Austin K. Shigemoto, Chengbin Zheng, Feng Zhang, Shawn C. Burdette, Yi Lu
Summary: This study introduces a novel approach using a photocaged chelator, XDPAdeCage, to extract Zn2+ from blood serum and quantify it with an 8-17 DNAzyme sensor, expanding the applications of DNAzyme sensors in detecting metal ions bound to biomolecules in biological and environmental samples. The developed protocols for chelating, uncaging, extracting, and detecting metal ions in serum have been optimized for efficient and accurate detection.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Rui Yang, Yao Lin, Jiahui Yang, Liangbo He, Yunfei Tian, Xiandeng Hou, Chengbin Zheng
Summary: The novel method combines chemical vapor generation and headspace solid-phase microextraction miniaturized point discharge optical emission spectrometry for sensitive and matrix effect-free detection of nitrite in complex samples. Under optimal conditions, a detection limit of 0.1 μg L-1 was achieved with a precision better than 3.0% at a concentration of 10 μg L-1, offering advantages of portability, simplicity, high sensitivity, and low energy consumption.
ANALYTICAL CHEMISTRY
(2021)
Article
Medicine, Legal
Gangqin Li, Yao Lin, Shengnan Lan, Jing Zou, Songfan Li, Feng Song, Yi Ye
Summary: This study analyzed the genetic diversity of 41 Y-STRs in 585 Tibetan male individuals from different regions of the Qinghai-Tibet Plateau, identifying 563 distinct haplotypes. Inter-population diversity analysis revealed two main separated clades of Tibetan subgroups. Visualizing pairwise genetic distances using cladogram showed consistency with geographical origin and linguistic affinity patterns.
INTERNATIONAL JOURNAL OF LEGAL MEDICINE
(2021)
Article
Chemistry, Analytical
Yuan Yang, Yao Lin, Yurong Deng, Xiandeng Hou, Lu Yang, Chengbin Zheng
Summary: The graphene oxide-functionalized pencil lead fiber was prepared via one-step dielectric barrier discharge microplasma treatment, showing high efficiency and low cost for toxic metal ion extraction. The novel fiber with abundant oxygen-containing functional groups on the surface exhibited enhanced extraction efficiency and sensitivity for cadmium ions, with a detection limit of 0.005 ug/L. The SPME method had a sensitivity enhancement factor of 25 and demonstrated successful application in various water samples with spike recoveries from 94 to 105%.
Article
Chemistry, Analytical
Xiaomin Pan, Yao Lin, Yubin Su, Jiahui Yang, Liangbo He, Yurong Deng, Xiandeng Hou, Chengbin Zheng
Summary: A novel method using methanol was developed to significantly enhance liquid electrode discharge mu PIVG efficiency for simultaneous and sensitive determination of Hg, Cd, and Zn. The possible enhancement mechanism was investigated through various characterizations of volatile products, resulting in improved vapor generation efficiencies and detection limits for the three elements.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Physical
Jinyi Zhang, Yao Lin, Shihong Wu, Xiandeng Hou, Chengbin Zheng, Peng Wu, Juewen Liu
Summary: Carbon dots (C-dots) are modified through light treatment to enhance visible light absorption, extend fluorescence emission, and improve catalytic efficiency, making them promising for cancer therapy applications. The study demonstrates a simple strategy to obtain C-dots with novel properties by utilizing light-induced oxidation and growth.
Article
Spectroscopy
Dan Zhou, Yao Lin, Haoqi Long, Yuwei Xu, Bo Wang, Liang Xian, Chuanqin Xia, Xiandeng Hou, Chengbin Zheng
Summary: A simple and effective system was developed for speciation analysis of 99Tc, which showed advantages in reducing sample consumption, improving sensitivity, and saving radioactive waste.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Ai Zhang, Yao Lin, Jiahui Yang, Liangbo He, Yurong Deng, Xiandeng Hou, Chengbin Zheng
Summary: A simple and efficient method using mu PIVG was developed for the rapid screening and quantification of mercury in fruits and vegetables without sample preparation. The technique allows for the detection of mercury with low limits of detections in tested tomato, lemon, and orange samples. The method provides a cost-effective tool for the rapid screening of mercury in fruits and vegetables by atomic spectrometry.
Article
Chemistry, Analytical
An-Qin Leng, Yao Lin, Li Yong, Cheng-Bin Zheng
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
(2020)