Biomimetics

Advanced biomaterials provide an interesting and versatile platform to implement new and more effective strategies to fight bacterial infections. Chitosan is one of these biopolymers and possesses relevant features for biomedical applications.

13p viginny 30-12-2022 9 1   Download

Screening of physicochemical properties should be considered one of the essential steps in the drug discovery pipeline. Among the available methods, biomimetic chromatography with an immobilized artificial membrane is a powerful tool for simulating interactions between a molecule and a biological membrane.

8p viginny 23-12-2022 3 1   Download

For the first time a molecularly imprinted polymer (MIP)-based sensor for tyrosinase is described. This sensor is based on the electropolymerization of scopoletin or o-phenylenediamine in the presence of tyrosinase from mushrooms, which has a high homology to the human enzyme. The template was removed either by treatment with proteinase K or by alkaline treatment. The measuring signal was generated either by measuring the formation of a product by the target enzyme or by evaluation of the permeability of the redox marker ferricyanide.

9p tudichquannguyet 29-11-2021 8 1   Download

Human – computer interactions have been the center of many recent scientific researches due to many potential applications. Among such interactions, hand movements have always been regarded as one of the most desirable research trends. Albeit having been in development for over three decades, the research in capturing hand gestures and movements, along with its applications, are still in need of refinement.

8p viwendy2711 05-10-2021 4 0   Download

Injuries to the human native cartilage tissue are particularly problematic because cartilage has little to no ability to heal or regenerate itself. Employing a tissue engineering strategy that combines suitable cell sources and biomimetic hydrogels could be a promising alternative to achieve cartilage regeneration.

10p vioregon2711 22-02-2021 5 1   Download

Cartilage tissue engineering is a promising approach for repairing and regenerating cartilage tissue. To date, attempts have been made to construct zonal cartilage that mimics the cartilaginous matrix in different zones.

10p vioregon2711 22-02-2021 6 1   Download

The purpose of our study was to assess the clinical and imaging outcome of autologous matrix-induced chondrogenesis (AMIC) technique consisting of microfractures followed by the filling of osteochondral lesions of the talus (OLTs) with a cell-free biphasic collagen-hydroxyapatite osteochondral scaffold (MaioRegen).

7p vitennessee2711 02-02-2021 5 0   Download

Aggressive metastatic breast cancer cells seemingly evade surgical resection and current therapies, leading to colonization in distant organs and tissues and poor patient prognosis. Therefore, high-throughput in vitro tools allowing rapid, accurate, and novel anti-metastatic drug screening are grossly overdue.

16p vilisa271 22-09-2020 10 1   Download

Human skin cells have limited mechanical and biochemical resistance properties. As such, it can be difficult for them to exist under extreme conditions due to a lack of resistance resulting from factors including chemical stabilities, abrasion strength, impact stress and other biological activities. In order to combat these problems, we have synthesized a highly specialized physicochemical skin analogue polymerization. This sees functional groups prepared on an electrochemical magnetic field and then synthesized in human-like water dispersion electrolyte conditions.

8p cothumenhmong3 22-02-2020 7 0   Download

A biomimetic method of gold nanoparticles synthesis utilizing the highly invasive aquatic weed pistia (Pistia stratiotes) is presented. In an attempt to utilize the entire plant, the efficacy of the extracts of all its parts – aerial and submerged – was explored with different proportions of gold (III) solution in generating gold nanoparticles (GNPs). The progress of the synthesis, which occurred at ambient temperature and pressure and commenced soon after mixing the pistia extracts and gold (III) solutions, was tracked using UV–visible spectrophotometry.

10p trinhthamhodang1 16-11-2019 9 0   Download

Inducing calcium carbonate precipitation is another important function of urease in nature. The process takes advantage of the supply of carbonate ions derived from urea hydrolysis and of an increase in pH generated by the reaction, effects that in the presence of Ca2+ ions lead to the precipitation of CaCO3.

9p trinhthamhodang1 14-11-2019 13 0   Download

Bài này xin giới thiệu phỏng sinh học của một hệ thống miễn dịch theo một cơ chế khác, đó là phỏng sinh học hệ miễn dịch của loài sam biển và các triển vọng ứng dụng trong thực tiễn. Mời các bạn tham khảo!

9p cathydoll4 21-02-2019 23 1   Download

In this paper, propose an efficient advanced controller that runs well in controlling the motion for fish robot. The fish robot is a new type of biomimetic underwater robot which is developing very fast in recent years by many researchers.

13p sansan2 26-05-2018 49 1   Download

In this paper, study about an optimization method to find the design parameters of fish robot. First, we analyze the dynamic model of the 3-joint Carangiform fish robot by using Lagrange method. Then the Genetic Algorithm (GA) is used to find the optimal lengths’ values of fish robot’s links.

10p sansan2 26-05-2018 27 1   Download

(bq) part 2 book "the coming of materials science" has contents: functional materials, the polymer revolution, craft turned into science, materials in extreme states, materials chemistry and biomimetics, computer simulation, the management of data, the institutions and literature of materials science, epilogue.

325p bautroibinhyen19 02-03-2017 38 2   Download

The phospholipase D (PLD) fromStreptomyces chromo-fuscusbelongs to the superfamily of PLDs. All the enzymes included in this superfamily are able to catalyze both hydrolysis and transphosphatidylation activities. However, S. chromofuscusPLD is calcium dependent and is often described as an enzyme with weak transphosphatidylation activity. S. chromofuscus PLD-catalyzed hydrolysis of phospholipids in aqueous medium leads to the formation of phosphatidic acid.

8p fptmusic 12-04-2013 28 1   Download

Depth of bilayer penetration and effects on lipid mobility conferred by themembrane-active peptidesmagainin, melit-tin, and a hydrophobic helical sequence KKA(LA)7KK (denoted KAL), were investigated by colorimetric and time-resolved fluorescence techniques in biomimetic phos-pholipid/poly(diacetylene)vesicles. The experiments dem-onstrated that the extent of bilayer permeation and peptide localization within the membrane was dependent upon the bilayer composition, and that distinct dynamic modifica-tions were induced by each peptide within the head-group environment of the phospholipids....

10p fptmusic 12-04-2013 39 1   Download

Innovation is a natural talent of humanity. Over several recorded millennia, curiosity has spurred discovery and the creation of artefacts that utilised natural substances or phenomena to serve human needs. The goal has been, often, to achieve something more quickly or with less effort or, in some cases, to extend curiosity by setting new goals.

398p namde01 10-04-2013 58 5   Download

Biomimetic recognition elements employed for the detection of analytes are commonly based on proteinaceous affibodies, immunoglobulins, single-chain and single-domain antibody fragments or aptamers. The alternative supra-molecular approach using a molecularly imprinted polymer now has proven utility in numerous applications ranging from liquid chromatogra-phy to bioassays.

10p media19 04-03-2013 38 2   Download

Most of the biochemical and biophysical processes of proteins take place at membranes, and are thus under the influence of strong local electric fields, which are likely to affect the structure as well as the reaction mecha-nism and dynamics.

9p cosis54 05-01-2013 45 2   Download