Krasimir Vasilev

ORCID: 0000-0003-3534-4754
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About
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Research Areas
  • Polymer Surface Interaction Studies
  • Graphene and Nanomaterials Applications
  • Antimicrobial agents and applications
  • Bone Tissue Engineering Materials
  • Nanoparticles: synthesis and applications
  • Nanoplatforms for cancer theranostics
  • 3D Printing in Biomedical Research
  • Surface Modification and Superhydrophobicity
  • Electrospun Nanofibers in Biomedical Applications
  • Bacterial biofilms and quorum sensing
  • Catalytic Processes in Materials Science
  • Antimicrobial Peptides and Activities
  • Nanoparticle-Based Drug Delivery
  • Catalysts for Methane Reforming
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Advanced Drug Delivery Systems
  • Wound Healing and Treatments
  • Advanced Nanomaterials in Catalysis
  • Cellular Mechanics and Interactions
  • Metal and Thin Film Mechanics
  • Fermentation and Sensory Analysis
  • Orthopedic Infections and Treatments
  • Catalysis and Oxidation Reactions
  • Molecular Junctions and Nanostructures
  • Dental materials and restorations

Flinders University
2020-2025

University of South Australia
2015-2024

VDE Prüf- und Zertifizierungsinstitut (Germany)
2022

John Wiley & Sons (Germany)
2019-2022

Fraunhofer Institute for Interfacial Engineering and Biotechnology
2019-2022

Ruhr University Bochum
2022

Polytechnique Montréal
2019-2022

University of Bari Aldo Moro
2019-2022

Australian Wine Research Institute
2022

Great Lakes Institute of Management
2015-2020

Osteoimmunomodulation has informed the importance of modulating a favorable osteoimmune environment for successful materials-mediated bone regeneration. Nanotopography is regarded as valuable strategy developing advanced materials, due to its positive effects on enhancing osteogenic differentiation. In addition this direct effect osteoblastic lineage cells, nanotopography also plays vital role in regulating immune responses, which makes it possible utilize immunomodulatory properties create...

10.1021/acsnano.6b07808 article EN ACS Nano 2017-04-17

To ensure the availability of clean water for humans into future, efficient and cost-effective purification technology will be required. The rapidly decreasing quality growing global demand this scarce resource has driven pursuit high-performance materials, particularly application as point-of-use devices. This review introduce main types natural artificial contaminants that are present in challenges associated with their effective removal. efficiency performance recently developed materials...

10.3390/c3020018 article EN cc-by C – Journal of Carbon Research 2017-06-02

Abstract Nanoparticles have become an important utility in many areas of medical treatment such as targeted drug and delivery well imaging diagnostics. These advances require a complete understanding nanoparticles' fate once placed the body. Upon exposure to blood, proteins adsorb onto nanoparticles surface form protein corona, which determines particles' biological fate. This study reports on corona formation from blood serum plasma spherical rod‐shaped nanoparticles. two types mesoporous...

10.1002/smll.202000285 article EN cc-by Small 2020-05-14

The nature of the protein corona forming on biomaterial surfaces can affect performance implanted devices. This study investigated role surface chemistry and wettability human serum-derived formation subsequent effects cellular innate immune response. Plasma polymerization, a substrate-independent technique, was employed to create nanothin coatings with four specific chemical functionalities spectrum charges wettability. amount type adsorbed strongly influenced by but did not show any...

10.1021/acsami.9b09900 article EN ACS Applied Materials & Interfaces 2019-07-16

Excessive mechanical stress is closely associated with cell death in various conditions. Exposure of chondrocytes to excessive loading leads a catabolic response as well exaggerated death. Ferroptosis recently identified form during aging and degeneration. However, it's potential association remains be illustrated.To identify whether can cause ferroptosis. To explore the role overloading chondrocyte ferroptosis.Chondrocytes were collected from unloading zones cartilage patients...

10.1016/j.jare.2022.01.004 article EN cc-by-nc-nd Journal of Advanced Research 2022-01-11

Abstract Intervertebral disc degeneration (IVDD) is one of the most prevalent spinal degenerative disorders and imposes places heavy medical economic burdens on individuals society. Mechanical overloading applied to intervertebral (IVD) has been widely recognized as an important cause IVDD. overloading-induced chondrocyte ferroptosis was reported, but potential association between mechanical remains be illustrated in nucleus pulposus (NP) cells. In this study, we discovered that excessive...

10.1007/s00018-023-05067-1 article EN cc-by Cellular and Molecular Life Sciences 2024-01-22

Tethered lipid bilayers (tBLMs) were obtained by the fusion of liposomes from diphytanoylphosphatidylcholine (DPhyPC) with self-assembled monolayers (SAMs) a newly designed archaea analogue thiolipid, 2,3-di-O-phytanyl-sn-glycerol-1-tetraethylene glycol-d,l-α-lipoic acid ester (DPTL) on template stripped gold (TSG) films silicon wafer as template. SAMs, characterized reflection absorption infrared spectroscopy (RAIRS), show mixture different conformations tetraethylene segment in air, which...

10.1021/la0342060 article EN Langmuir 2003-05-20

We have synthesized a series of copolymers containing both positively charged (amine, guanidine) and hydrophobic side chains (amphiphilic antimicrobial peptide mimics). To investigate the structure–activity relationships these polymers, low polydispersity polymethacrylates varying but uniform molecular weight composition were synthesized, using reversible addition–fragmentation chain transfer (RAFT) approach. In facile second reaction, pendant amine groups converted to guanidines, allowing...

10.1021/bm401128r article EN Biomacromolecules 2013-10-07

Reduced graphene oxide (rGO) is a promising antibacterial material, the efficacy of which can be further enhanced by addition silver nanoparticles (nAg). In this study, mechanisms activity rGO-nAg nanocomposite against several important human pathogenic multi-drug resistant bacteria, namely Gram-positive coccal Staphylococcus aureus and Gram-negative rod-shaped Escherichia coli Proteus mirabilis are investigated. At same concentration (100 µg/ml), was significantly more effective all three...

10.1038/s41598-017-01669-5 article EN cc-by Scientific Reports 2017-05-02

Abstract Bacterial colonisation of synthetic materials surfaces is an important problem in many fields and consequently there have been considerable efforts over decades to find solutions. This review discusses plasma‐based strategies for combating infections at biomedical implants devices, caused by the attachment bacteria their subsequent biofilm formation on device surfaces. Plasma polymerisation plasma treatment become attractive modalities developing antibacterial coatings various...

10.1002/ppap.201100097 article EN Plasma Processes and Polymers 2011-10-04

Bacterial infections present an enormous problem causing human suffering and cost burdens to healthcare systems worldwide. Here we novel tunable antibacterial coatings which completely inhibit bacterial colonization by Staphylococcus epidermidis but allow normal adhesion spreading of osteoblastic cells. The are based on amine plasma polymer films loaded with silver nanoparticles. method preparation allows flexible control over the amount nanoparticles rate release ions.

10.1021/nl903274q article EN Nano Letters 2009-12-07

In this communication, we present a novel approach for control of drug release from porous materials. The method is based on deposition plasma polymer layer with controlled thickness which reduces pore diameter and, hence, defines the rate release.

10.1039/b919840g article EN Chemical Communications 2010-01-01

Antibacterial nanodevices could bring coatings of plastic materials and wound dressings a big step forward if the release antibacterial agents be triggered by presence bacteria themselves. Here, we show that novel hyaluronic acid (HA)-based nanocapsules containing antimicrobial agent polyhexanide are specifically cleaved in hyaluronidase, factor pathogenicity invasion for like Staphylococcus aureus Escherichia coli. This resulted an efficient killing pathogenic agent. The formation different...

10.1021/bm302003m article EN Biomacromolecules 2013-02-28

Poor aqueous solubility of some drug molecules is a major problem in formulation. Drug nanosuspensions emerged as one solution to delivering such hydrophobic drugs. Scaling down nanoparticles enhances and bioavailability by increasing surface area that comes into contact with biological media. Nanosuspensions have attracted particular attention are those sterically stabilised steric polymers polyethylene glycol (PEG) typical size range 10–100 nm. These capable accumulating targeted areas...

10.1155/2015/216375 article EN cc-by Journal of Nanomaterials 2015-01-01

Background: Intervertebral disc (IVD) degeneration is a common degenerative disease that can lead to collapse or herniation of the nucleus pulposus (NP) and result in radiculopathy patients. Methods: NP tissue cells were isolated from patients mice, expression profile cortistatin (CST) was analysed. In addition, ageing compared between 6-month-old WT CST-knockout (CST-/-) mice. Furthermore, tissues cultured validate role CST TNF-α-induced IVD degeneration. Moreover, vitro vivo experiments...

10.7150/thno.45359 article EN cc-by Theranostics 2020-01-01

Ultrasmall silver nanoparticles (AgNPs; size < 3 nm) have attracted a great deal of interest as an alternative to commercially available antibiotics due their ability eliminate wide range microbial pathogens. However, most these ultrasmall AgNPs are highly reactive and unstable, well susceptible fast oxidation. Therefore, both the stability toxicity remain major shortcomings for clinical application uptake. To circumvent problems, we present novel strategy impregnate into biocompatible...

10.1021/acsami.0c09414 article EN ACS Applied Materials & Interfaces 2020-08-25
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