Magnetoanisotropic biodegradable nanocomposites for controlled drug release

Иорданский, А. Л.; Bychkova, A. V.; Гумаргалиева, К. З.; Berlin, A. A.

doi:10.1016/b978-0-323-42866-8.00006-x

Cited by 4 publications

(4 citation statements)

References 106 publications

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“…The mean magnetization was calculated by the Kittel formula to be 110 G for pAA-TEG-AAP@MNP and 115 G for pAA-Ph-AAP@MNP with regard to the density. This is typical for magnetic NP in a polymer matrix. , …”

Section: Resultsmentioning

confidence: 87%

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Multi-Stimuli-Responsive Water-Dispersible Magnetite Nanoparticles Using Arylazopyrazole-Modified Polymer Ligands

Schlichter,

Jersch,

Demokritov

et al. 2024

Langmuir

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Section: Resultsmentioning

confidence: 87%

“…This is typical for magnetic NP in a polymer matrix. 30,31 We then studied the reversibility of the magnetization process by UV/vis spectroscopy. Spectra of MNP were measured after the cuvette with the sample was placed on a magnet for 30 min and after resuspension by sonication.…”

Section: ■ Experimental Sectionmentioning

confidence: 99%

Multi-Stimuli-Responsive Water-Dispersible Magnetite Nanoparticles Using Arylazopyrazole-Modified Polymer Ligands

Schlichter,

Jersch,

Demokritov

et al. 2024

Langmuir

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“…This is typical for magnetic NP in a polymer matrix. 30,31 We then studied the magnetization process by UV/vis spectroscopy, in particular the reversibility. Spectra of MNP were measured after placing the cuvette with the sample on a magnet for 30 min https://doi.org/10.26434/chemrxiv-2024-wm9zq ORCID: https://orcid.org/0000-0003-2202-7485 Content not peer-reviewed by ChemRxiv.…”

Section: Magnetic Behaviormentioning

confidence: 99%

Synthesis of Photoresponsive Water-Dispersible Magnetite Nanoparticles using Arylazopyrazole Modified Polymers

Schlichter,

Jersch,

Demokritov

et al. 2024

Preprint

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In order to design new nanomaterials with improved functionalities, magnetite nanoparticles (MNP) modified with arylazopyrazole (AAP) molecular photoswitches are presented. Water-dispersibility is achieved by using poly(acrylic acid) (pAA) as a multidentate ligand, which is modified with AAP by amide coupling. The polymer ligand allows for the E-Z isomerization of the photoswitch, stabilizes the nanoparticles and provides pH responsiveness. Three different AAPs are synthesized and attached to pAA via amide coupling giving statistic co-polymers pAA-AAP. MNP are synthesized by co-precipitation and pAA-AAP is introduced as stabilizing agent in situ. Photoisomerization of pAA-AAP and pAA-AAP@MNP are investigated showing good photostationary states and cyclability. The nanoparticles can be assembled and dispersed reversibly in water by applying magnetic field and change in the pH value.

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“…Besides, an initially-loaded content of remedies in a food medium to disrupt microbial flora often results in a gradual decrease in antimicrobial content that may lead to nascence of the antimicrobial-resistant mutants [34]. To overcome the above disadvantages, innovative polymer packaging on the base of PHAs and specifically PHB has emerged on the basis of remedy-controlled release that has been successfully invented for biomedical devices [35,36]. In packaging, a preliminary loaded active agent should be delivered into food, thereby enhancing the food quality and the shelf-life simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Evaluation of Controlled Antimicrobial Release from Petrochemical (PU) and Biodegradable (PHB) Packaging

et al. 2018

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Abstract:The academic exploration and technology design of active packaging are coherently supplying innovative approaches for enhancing the quality and safety of food, as well as prolonging their shelf-life. With the object of comparison between two barrier materials, such as stable petrochemical polyurethane (PU), (BASF), and biodegradable natural poly(3-hydroxybutyrate) (PHB), (Biomer Co., Krailling, Germany), the study of antibacterial agent release has been performed. For the characterization of polymer surface morphology and crystallinity, the scanning electron microscopy (SEM), atomic force microscopy (AFM) and differential scanning calorimetry (DSC) were used respectively. The antimicrobial activity of chlorhexidine digluconate (CHD) has been estimated by the Bauer-Kirby Disk Diffusion Test. It was shown that the kinetic release profiles of CHD, as the active agent, in both polymers, significantly differed due to the superposition of diffusion and surface degradation in poly(3-hydroxybutyrate) (PHB). To emphasize the special transport phenomena in polymer packaging, the diffusivity modeling was performed and the CHD diffusion coefficients for the plane films of PU and PHB were further compared. The benefit of active biodegradable packaging on the base of PHB is discussed.

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Magnetoanisotropic biodegradable nanocomposites for controlled drug release

Cited by 4 publications

References 106 publications

Multi-Stimuli-Responsive Water-Dispersible Magnetite Nanoparticles Using Arylazopyrazole-Modified Polymer Ligands

Multi-Stimuli-Responsive Water-Dispersible Magnetite Nanoparticles Using Arylazopyrazole-Modified Polymer Ligands

Synthesis of Photoresponsive Water-Dispersible Magnetite Nanoparticles using Arylazopyrazole Modified Polymers

Characterization and Evaluation of Controlled Antimicrobial Release from Petrochemical (PU) and Biodegradable (PHB) Packaging

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