The heterogeneity and metastatic features of cancer cells lead to a great number casualties in the world. Additionally, its diagnosis as well treatment is highly expensive. Therefore, development simple but effective diagnostic systems which detect molecular markers importance. changes on cell membranes serve targets, such HER2/neu receptor detected surface breast cells. We have aimed develop s...

A quantum circuit must be preprocessed before implementing on NISQ devices due to the connectivity constraint. Quantum mapping (QCM) transforms into an equivalent one that is compliant with device’s architecture constraint by adding SWAP gates. The QCM problem asks minimal number of auxiliary gates, and NP-complete. complexity fixed parameters studied in paper. We give exact algorithm for QCM, ...

An acoustic wave sensor coated with an artificial biomimetic recognition element has been developed to selectively screen for nandrolone in the liquid phase. A highly specific covalently imprinted polymer (MIP) was spin coated onto one electrode of a quartz crystal microbalance (QCM) as a thin permeable film. Selective rebinding of the nandrolone was observed as a frequency shift in the QCM for...

The surface crystallization of CaCO3 on gold was monitored by a quartz crystal microbalance (QCM). Quantitative control of the grown crystals was realized by adjusting the ratio of two functional groups, -N(CH3)3 and -COOH, on SAMs. Crystals with uniform size, morphology and polymorphism were obtained. The amount of crystals formed was found to increase with an increase in the -COOH group. The ...

A quartz-crystal microbalance immunosensor (QCM) has been developed for the direct determination of Schistosoma-japonicum-infected rabbit serum. A self-assembled monolayer with carboxyl groups was first coated on a gold electrode of a quartz-crystal resonator by the spontaneous adsorption of 3-mercaptopropionic acid. Schistosoma-japonicum molecular antigen of 32 kD molecular weight was then cov...

The influence of quartz plate roughening on the dynamic parameters of quartz resonators has been studied. For this aim AT-cut quartz plates with a diameter of 8 mm, after a standard technological cleaning, are subjected to treatment with abrasive of varying grain sizes: 3, 7, 14 and 20 μm. Piezoquartz resonators are fabricated on these plates with 4 mm Au electrodes. The alterations of resonato...

A novel signal amplification strategy for quartz crystal microbalance (QCM) based on catalytic gas generation was developed to construct an ultrasensitive immunosensor for the detection of proteins (immunoglobulin G, IgG, used as a model). A catalase modified immunoparticle was prepared to form a sandwich-type immunocomplex with the IgG and anti-IgG antibodies that were immobilized on the QCM s...

Introduction. Trypsin (EC 3.4.21.4) is a protein degrading enzyme of the group of the serine proteases having many applications: in food and beverage industries for protein hydrolysates production, in cold stabilization of beer etc. It is employed in biochemistry for protein identification through peptide sequencing techniques [1]. The activity of trypsin serves as a reliable diagnostic test of...

In this work, a simple and novel quartz crystal microbalance (QCM) assay is demonstrated to selectively and sensitively detect the adenosine triphosphate (ATP). The amplification process consists of circular nucleic acid strand-displacement polymerization, aptamer recognition strategy and nanoparticle signal amplification. With the involvement of an aptamer-based complex, two amplification reac...

Quartz Crystal Microbalance with Dissipation (QCM-D) monitoring is a surface sensitive technique for assessment of mass and viscoelastic properties of thin films. It is commonly used for evaluation of binding and interactions of biological molecules in liquid environment. Since the QCM-D working principle is based on lateral movement of a quartz sensor, both deposited biomolecules and associate...