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2020 Volume 48 Issue 3
2020, 48(3): 307-315
doi: 10.19756/j.issn.0253-3820.191548
Abstract:
The human brain consists of billions of neurons, and the communication between neurons mainly relies on various neurotransmitters which are released at chemical synapses. Therefore, it is important to monitor neurotransmitter release with high tempor...
The human brain consists of billions of neurons, and the communication between neurons mainly relies on various neurotransmitters which are released at chemical synapses. Therefore, it is important to monitor neurotransmitter release with high tempor...
2020, 48(3): 316-322
doi: 10.19756/j.issn.0253-3820.191714
Abstract:
A system based on electrochemical microsensor was developed for total nitrogen (TN) determination in freshwaters. A new method combined alkaline potassium persulfate digestion with electrochemical sensor was used to detect TN concentration. After the...
A system based on electrochemical microsensor was developed for total nitrogen (TN) determination in freshwaters. A new method combined alkaline potassium persulfate digestion with electrochemical sensor was used to detect TN concentration. After the...
2020, 48(3): 323-331
doi: 10.19756/j.issn.0253-3820.191603
Abstract:
Some G-quadruplex (G4) forming sequences are able to form multimers under physiological conditions, which limits the structure-activity study of G4s. Here we reported an in-gel visual method to probe the conformational polymorphism of the derivatives...
Some G-quadruplex (G4) forming sequences are able to form multimers under physiological conditions, which limits the structure-activity study of G4s. Here we reported an in-gel visual method to probe the conformational polymorphism of the derivatives...
2020, 48(3): 332-338
doi: 10.19756/j.issn.0253-3820.191697
Abstract:
Solid state nanopores are widely used as sensing elements for protein and nucleic acid analysis. However, the extremely low capture rate and fast translocation speed limit the sensitivity and resolution of nanopore-based sensors. In this work, we pre...
Solid state nanopores are widely used as sensing elements for protein and nucleic acid analysis. However, the extremely low capture rate and fast translocation speed limit the sensitivity and resolution of nanopore-based sensors. In this work, we pre...
2020, 48(3): 339-346
doi: 10.19756/j.issn.0253-3820.191493
Abstract:
As a short peptide containing active thiol group, glutathione participates in many intracellular reactions, so it is of great significance to detect glutathione in cells. In this work, amino-rich graphene quantum dots were synthesized, which could co...
As a short peptide containing active thiol group, glutathione participates in many intracellular reactions, so it is of great significance to detect glutathione in cells. In this work, amino-rich graphene quantum dots were synthesized, which could co...
2020, 48(3): 347-354
doi: 10.19756/j.issn.0253-3820.191609
Abstract:
Three new fluorescent probes (ISBD, ISPD and ISND) were designed and synthesized. The UV-visible absorption spectrum, fluorescence spectrum, and response to pH values of the probe were studied, and the HSO3-/pH dual detection fluorescent probe ISND w...
Three new fluorescent probes (ISBD, ISPD and ISND) were designed and synthesized. The UV-visible absorption spectrum, fluorescence spectrum, and response to pH values of the probe were studied, and the HSO3-/pH dual detection fluorescent probe ISND w...
2020, 48(3): 355-362
doi: 10.19756/j.issn.0253-3820.191668
Abstract:
The gold nanoclusters (AuNCs) with red fluorescence were synthesized using glutathione (GSH) as protectants and reductants, which displayed high selectivity to Cu2+ in water and rat serum. Due to the coordination of Cu2+ with the capping ligand of Au...
The gold nanoclusters (AuNCs) with red fluorescence were synthesized using glutathione (GSH) as protectants and reductants, which displayed high selectivity to Cu2+ in water and rat serum. Due to the coordination of Cu2+ with the capping ligand of Au...
2020, 48(3): 363-370
doi: 10.19756/j.issn.0253-3820.191672
Abstract:
Diabetes has become a prominent issue that threatens human's health. Minimally invasive blood glucose testing may cause inconvenience and pain to patients. Wearable non-invasive blood glucose testing is becoming a hot topic in the scientific and medi...
Diabetes has become a prominent issue that threatens human's health. Minimally invasive blood glucose testing may cause inconvenience and pain to patients. Wearable non-invasive blood glucose testing is becoming a hot topic in the scientific and medi...
2020, 48(3): 371-377
doi: 10.19756/j.issn.0253-3820.191658
Abstract:
A photoelectrochemical (PEC) method was constructed for detection of Co2+ based on a WO3/AuNPs/FTO electrode. Gold nanoparticles (AuNPs) were electrochemically deposited on the surface of FTO and then tungsten trioxide (WO3) with vertically aligned p...
A photoelectrochemical (PEC) method was constructed for detection of Co2+ based on a WO3/AuNPs/FTO electrode. Gold nanoparticles (AuNPs) were electrochemically deposited on the surface of FTO and then tungsten trioxide (WO3) with vertically aligned p...
2020, 48(3): 378-388
doi: 10.19756/j.issn.0253-3820.191628
Abstract:
A monolayer graphene electrochemical platform based on chemical vapor deposition grown graphene was constructed for electrochemical detection of nicotinamide adenine dinucleotide (NADH). Caffeic acid (CFA) was immobilized on the surface of the activa...
A monolayer graphene electrochemical platform based on chemical vapor deposition grown graphene was constructed for electrochemical detection of nicotinamide adenine dinucleotide (NADH). Caffeic acid (CFA) was immobilized on the surface of the activa...
2020, 48(3): 389-395
doi: 10.19756/j.issn.0253-3820.191684
Abstract:
The molecular imprinting technique and photonic crystal materials were combined to construct an array of sensors based on inverse-opal structure molecularly imprinted photonic crystal film (MIPPs) for the determination of trace amounts of bisphenol A...
The molecular imprinting technique and photonic crystal materials were combined to construct an array of sensors based on inverse-opal structure molecularly imprinted photonic crystal film (MIPPs) for the determination of trace amounts of bisphenol A...
2020, 48(3): 396-404
doi: 10.19756/j.issn.0253-3820.191608
Abstract:
A molecularly imprinted photoelectrochemical sensor based on AgBiS2/Bi2S3 was constructed for detection of insecticide propoxur. AgBiS2/Bi2S3 composites were synthesized on Ti substrate by solvothermal method. Using propoxur as a template molecule an...
A molecularly imprinted photoelectrochemical sensor based on AgBiS2/Bi2S3 was constructed for detection of insecticide propoxur. AgBiS2/Bi2S3 composites were synthesized on Ti substrate by solvothermal method. Using propoxur as a template molecule an...
2020, 48(3): 405-412
doi: 10.19756/j.issn.0253-3820.191604
Abstract:
Five amanita peptide toxins, such as α-amanita, β-amanita, phalloidin, viroidin and ala-viroidin in human plasma and urine were determined by high-performance liquid chromatography coupled with triple quadrupole mass spectrometry under positive ion m...
Five amanita peptide toxins, such as α-amanita, β-amanita, phalloidin, viroidin and ala-viroidin in human plasma and urine were determined by high-performance liquid chromatography coupled with triple quadrupole mass spectrometry under positive ion m...
2020, 48(3): 413-422
doi: 10.19756/j.issn.0253-3820.191049
Abstract:
A high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF/MS) method for determination of seven kinds of alkylamines was established. Samples were amidated with 0.4% benzyl chloroformate (Cbz-Cl) in acetonitrile...
A high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (HPLC-Q-TOF/MS) method for determination of seven kinds of alkylamines was established. Samples were amidated with 0.4% benzyl chloroformate (Cbz-Cl) in acetonitrile...
2020, 48(3): 423-430
doi: 10.19756/j.issn.0253-3820.191503
Abstract:
A method for rapid and non-targeted screening of pesticide residues in green tea by Sin-QuEChERS combined with ultra performance liquid chromatography-Q-Exactive Orbitrap mass spectrometry was developed. The method was optimized using 38 pesticides a...
A method for rapid and non-targeted screening of pesticide residues in green tea by Sin-QuEChERS combined with ultra performance liquid chromatography-Q-Exactive Orbitrap mass spectrometry was developed. The method was optimized using 38 pesticides a...
