Sensors and Actuators B-chemical
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#1Won Han (Pukyong National University)
#2Sodam Kim (PNU: Pusan National University)H-Index: 3
Last. Joong Ho Shin (Pukyong National University)H-Index: 9
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Abstract null null Herein, a wind-up precision pump is proposed in which the pump is powered by the manual winding of a helical spring, similar to that in a mechanical watch. The unwinding of the wound helical spring provides a constant torque. The connecting gears at the spring convert the rotational movement of the spring into linear motion to generate a constant force for pushing a syringe. Incorporating the high-precision mechanism of a mechanical watch into the pump can generate precise, st...
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#1Pengde Jia (Yanshan University)H-Index: 1
#2Caiping Ding (Hangzhou Normal University)H-Index: 1
Last. Youju Huang (Hangzhou Normal University)H-Index: 36
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Abstract null null Currently, metal-enhanced fluorescence (MEF) is an emerging effective technology for sensitive bio-detection. In this report, the distance between Au nanorods (Au NRs) and NIR Ag2S quantum dots (Ag2S QDs) is precisely regulated by DNA with different chain lengths. The experimental results show that the best MEF effect can be obtained when the distance is about 8 nm. Based on the result, Au NRs and Ag2S QDs were modified with DNA at specific distances, which were used for accur...
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#1Eunho Lee (Kumoh National Institute of Technology)
#2Hyungsub Lim (POSTECH: Pohang University of Science and Technology)H-Index: 1
Last. Hyun Kim (Kumoh National Institute of Technology)H-Index: 3
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Abstract null null Although atomically thin two-dimensional graphene is of interest for next-generation electronic device applications owing to its outstanding properties, a crucial issue concerning the stable operation of graphene-based devices under ambient conditions still remains for industrial applications. Because the electrical performance of graphene-based devices is largely affected by polar atmospheric species such as water molecules (H2O), it is important to eliminate this detrimental...
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#1Ming-Yue Yu (Northeast Normal University)H-Index: 4
#2Jin-Hua Liu (Northeast Normal University)H-Index: 2
Last. Jian-Fang Ma (Northeast Normal University)H-Index: 74
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Abstract null null We herein reported a newly microporous metal–organic framework (MOF), [Mn4(TPTR4A-II)0.5(bpdc)4(H2O)]·2DMF (Mn-MOF) (bpdc = biphenyl-4,4′-dicarboxylate, DMF = N,N′-dimethylformamide), constructed by bpdc anions, Mn(II) cations and a novel functionalized resorcin[4]arene (TPTR4A-II). For the first time, Mn-MOF was immobilized on graphene oxide (GO) to give Mn-MOF@GO composite. During the electrochemical experiments, the reduced graphene oxide (RGO) was obtained because of the e...
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#1Seong Uk SonH-Index: 3
#2Soojin JangH-Index: 4
Last. Hyungjun Kim (Incheon National University)H-Index: 19
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Abstract null null Drug-facilitated crimes using date-rape drugs are on the rise. Gamma-hydroxybutyric acid (GHB), a notorious date-rape drug, is colorless, odorless, and tasteless, and therefore difficult to detect in beverages. The ingestion of GHB can severely incapacitate individuals by inducing dizziness, drowsiness, and unconsciousness, making them vulnerable to crimes. To prevent drug-facilitated crimes, a GHB detection kit is developed in which PCDA-gabazine and PCDA, which strongly inte...
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#1Lijuan Yin (Tianjin University of Science and Technology)H-Index: 1
#2Ninghui Duan (Tianjin University of Science and Technology)
Last. Long Ma (Tianjin University of Science and Technology)H-Index: 23
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Abstract null null Foodborne diseases, caused by pathogenic bacteria, severely threaten global human health and cause a financial burden. Rapid, sensitive and on-site detection of pathogenic bacteria is significant. The existing methods have different defects, such as time-consuming and inconvenient. In this study, we developed a G-quadruplex-based CRISPR-Cas12a bioassay for pathogenic bacteria detection with high sensitivity and visualization capability. Salmonella was used as the detection mod...
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#1Fengwan Zhao (Xi'an Jiaotong University)H-Index: 1
#2Xiaoming Chen (Xi'an Jiaotong University)H-Index: 13
Last. Zuo-Guang Ye (SFU: Simon Fraser University)H-Index: 61
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Abstract null null New target applications for microfluidic devices have been focused on home usability, wearability and cost-effectiveness. Towards these goals, in this work, a controllable, bendable, and all‑organic, nozzle‑diffuser microfluidic pump was designed, fabricated and tested. First, to resolve the crucial issue of high driving voltage, the ferroelectric polymer poly(vinylidene fluoride‑trifluoroethylene) (P(VDF‑TrFE)) was optimized by adding core‑shell structured Al2O3@CNT nanofille...
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#1Abdellatif Ait Lahcen (KAUST: King Abdullah University of Science and Technology)H-Index: 12
#2Sakandar Rauf (KAUST: King Abdullah University of Science and Technology)H-Index: 18
Last. Khaled Nabil Salama (KAUST: King Abdullah University of Science and Technology)H-Index: 4
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Abstract null null Laser scribed graphene (LSG) has shown great potential as a sensing platform due to its high sensitivity, simplicity, porosity, and flexibility. In this context, we report a novel biosensing platform that utilizes LSG electrodes modified with nanostructured gold and molecularly imprinted polymer (MIP) to enhance its sensitivity and selectivity. This biomimetic sensing platform is used to detect the human epidermal growth factor receptor 2 (Her-2) protein, a significant breast ...
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#1Yanhui Zhong (SYSU: Sun Yat-sen University)H-Index: 3
#2Ming Li (SYSU: Sun Yat-sen University)H-Index: 131
Last. Gongke Li (SYSU: Sun Yat-sen University)H-Index: 57
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Abstract null null In this work, the hybridization of Co(Ⅲ) doped-CoFe layered double hydroxide and graphene oxide (CoFe LDH/GO) was first employed as catalyst to establish a cataluminescence (CTL) gas sensor for detection of carbon monoxide. In order to obtain Co(Ⅲ) doped-CoFe LDH/GO with the best CTL performance, synthesis reaction parameters including amount of oxidant, oxidation time and amount of GO were studied. The structure and morphology of Co(Ⅲ) doped-CoFe LDH/GO were characterized. Th...
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#1Juanjuan Luo (Lanzhou University)H-Index: 1
#2Zekai Wang (Lanzhou University)
Last. Bing Shao (CCDC: Chinese Center for Disease Control and Prevention)
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Abstract null null Swab sampling for the trace surface-enhanced Raman scattering (SERS) analysis of an aromatic dye (e.g., malachite green, MG) residue in fruits as well as fingerprints is promising due to its practical utility and efficiency in food security and forensic science. However, the durability and recyclability of the SERS substrates pose an enormous challenge. In this study, a novel flexible film was constructed by embedding a commercial Ag nanowire suspension into a polydimethylsilo...
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Analytical chemistry
Detection limit
Biosensor
Nanotechnology
Electrode
Inorganic chemistry
Chemistry
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