Vlad Ghizdovăț

ORCID: 0000-0001-8233-8862
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Research Areas
  • Complex Systems and Time Series Analysis
  • Advanced Mathematical Theories and Applications
  • Biofield Effects and Biophysics
  • Computational Drug Discovery Methods
  • Statistical Mechanics and Entropy
  • Fractal and DNA sequence analysis
  • Surfactants and Colloidal Systems
  • Heart Rate Variability and Autonomic Control
  • Medical Imaging Techniques and Applications
  • Quantum Mechanics and Applications
  • Radiation Therapy and Dosimetry
  • Cardiovascular Health and Disease Prevention
  • Nanoparticle-Based Drug Delivery
  • Computational Physics and Python Applications
  • Gene Regulatory Network Analysis
  • Field-Flow Fractionation Techniques
  • Advanced Drug Delivery Systems
  • Advanced Thermodynamics and Statistical Mechanics
  • Adipose Tissue and Metabolism
  • Drug Solubulity and Delivery Systems
  • Analytical Chemistry and Chromatography
  • Radiopharmaceutical Chemistry and Applications
  • Protein purification and stability
  • Theoretical and Computational Physics
  • Thermoelastic and Magnetoelastic Phenomena

Grigore T. Popa University of Medicine and Pharmacy
2015-2025

Alexandru Ioan Cuza University
2015-2017

Hai phong University Of Medicine and Pharmacy
2016

The demand for tailored, disease-adapted, and easily accessible radiopharmaceuticals is one of the most persistent challenges in nuclear imaging precision medicine. In this study, two radiotracers were developed to bind SPECT PET radionuclides.

10.1039/d3tb02654j article EN cc-by Journal of Materials Chemistry B 2024-01-01

The high energy of α emitters, and the strong linear transfer that goes along with it, lead to very efficient cell killing through DNA damage. Moreover, degree oxygenation cycle state have no impact on these effects. Therefore, radioisotopes can offer a treatment choice individuals who are not responding β- or gamma-radiation therapy chemotherapy drugs. Only few α-particle emitters suitable for targeted alpha (TAT) clinical applications. majority available research involves 225Ac its...

10.3390/ph16121679 article EN cc-by Pharmaceuticals 2023-12-02

Assimilating complex systems to multifractal-type objects reveals continuous and non-differentiable curve dynamics, aligning with the Multifractal Theory of Motion. Two scenarios, a Schrödinger-type Madelung-type multifractal scenario, are possible in this setting. If Madelung scenario employs maximized information entropy for distribution density, then Newtonian oscillator-type forces can be determined. In presence these matter background, we analyze two-body problem. The obtained results...

10.3390/fractalfract9030132 article EN cc-by Fractal and Fractional 2025-02-20

In our work, we use the multifractal motion theory to apply a state density conservation law polymer-drug release process. This is specific transition from nonmultifractal curves corresponding processes. A diffusion-type was obtained, which describes cyclic drug dynamics until polymer matrix fully degraded. The system reveals programmable nature due its complex part and scale resolution dependence.

10.3390/polym17060745 article EN Polymers 2025-03-12

Background: Rheumatoid arthritis is a chronic autoimmune disease that leads to severe disability and requires improved therapeutic strategies optimize anti-inflammatory treatment. This study aimed address this challenge by developing characterizing an extended-release polymer matrix tablet containing ketoprofen ketoprofen–β-cyclodextrin complex with enhanced properties. The objective was improve inflammation management outcomes using novel delivery system based on the inclusion of active...

10.3390/pharmaceutics17040474 article EN cc-by Pharmaceutics 2025-04-05

Background/Objectives: The Tc-99m dimercaptosuccinic acid (DMSA) renal scan clearly images the cortex, highlighting functional tissue areas and indicating regions of scarring, infection, malformations, or other types damage. To enhance management paediatric cases involving malformations to reduce incidence chronic progressive kidney diseases in "future adults", our study aims identify categorise various anomalies. Methods: This has been achieved by analysing DMSA scans a large cohort 931...

10.3390/diagnostics15081025 article EN cc-by Diagnostics 2025-04-17

In multicellular organisms, both health and disease are defined by means of communication patterns involving the component cells. Despite intricate networks soluble mediators, cells also programed to exchange complex messages pre-assembled as multimolecular cargo membranous structures known extracellular vesicles (EVs). Several biogenetic pathways produce EVs with different properties able orchestrate neighboring cell reactions or establish an environment ripe for spreading tumor Such effect...

10.4149/gpb_2015048 article EN General Physiology and Biophysics 2016-01-01

Two formulations based on diclofenac sodium salt encapsulated into a chitosan hydrogel were designed and prepared, their drug release was investigated by combining in vitro results with mathematical modeling. To understand how the pattern of encapsulation impacted its release, supramolecularly morphologically characterized scanning electron microscopy polarized light microscopy, respectively. The mechanism assessed using model multifractal theory motion. Various drug-delivery mechanisms,...

10.3390/gels9050422 article EN cc-by Gels 2023-05-17

A unitary model of drug release dynamics is proposed, assuming that the polymer–drug system can be assimilated into a multifractal mathematical object. Then, we made description implies, via Scale Relativity Theory, functionality continuous and undifferentiable curves (fractal or curves), possibly leading to holographic-like behaviors. At such conjuncture, Schrödinger Madelung scenarios become compatible: in scenario, various modes “mimicked” (via period doubling, damped oscillations,...

10.3390/ph17040541 article EN cc-by Pharmaceuticals 2024-04-22

Background: This study explored the potential of MCM-48 mesoporous silica matrices as a drug delivery system for metformin hydrochloride, aimed at improving therapeutic management type 2 diabetes mellitus. The objectives included synthesis and characterization MCM-48, assessment its loading capacity, analysis release profiles under simulated physiological conditions, development multifractal dynamics-based theoretical framework to model interpret kinetics. Methods: was synthesized using...

10.3390/biomedicines12122838 article EN cc-by Biomedicines 2024-12-13

The present study analyzes (theoretically and experimentally) a drug release process from nanoparticles (polymeric nanocapsules liposomes). This is functionalized on the surface with an aptamer. These types of processes can also be included in cream-type formulations. obtained cream ensures active targeting tumor epithelial cells, case skin cancer, because it easily administered to by spreading, thus avoiding side effects caused toxicity healthy increasing both patient compliance...

10.3390/polym15041018 article EN Polymers 2023-02-17

A 62 years old woman was diagnosed with multinodular toxic goiter and primary hyperparathyroidism/left parathyroid adenoma by hormonal assessment, ultrasound nuclear thyroid/parathyroid scans. Cervical illustrated a aspect of the thyroid solid nodules cystic-component nodules; larger one represented complex necrosis areas in left lobe, ACR TI-RADS score 4 (moderately suspicious). Functional imaging performed for accurate differential diagnosis between vs. localization, cold hot nodules,...

10.4183/aeb.2021.393 article EN Acta Endocrinologica (Bucharest) 2021-01-01

The physicochemical properties of "smart" or stimuli-sensitive amphiphilic copolymers can be modeled as a function their environment. In special, pH-sensitive have practical applications in the biomedical field drug delivery systems. Interactions between structural units any polymer-drug system imply mutual constraints at various scale resolutions and nonlinearity is accepted one most fundamental properties. release kinetics, pH, model active principle, i.e., Curcumin, from nanomicelles...

10.1080/10717544.2022.2118402 article EN cc-by Drug Delivery 2022-09-05

The classical treatment of the Kepler problem leaves room for description space region central body by a hyperbolic geometry. If correspondence between empty and filled with matter is taken to be harmonic mapping, then atomic nucleus, like one Sun planetary system proper, described skyrmions. This fact makes possible nuclear within framework general relativity. “hedgehog” solution skyrmions can classically interpreted in terms characterizations intra-nuclear forces.

10.1142/s0217984916501530 article EN Modern Physics Letters B 2016-05-12

Nonlinear dynamics is nowadays widely employed in the study of biological phenomena.In such context, taking into account that abnormal heart rhythms display chaotic behaviours, our opinion, specific attractor can constitute a method for evaluating various cardiac afflictions.By using mathematical procedures to nonlinear we devise new atrial fibrillations.Using data from ECG signals, construct strange attractors corresponding phase space, analyzed signals.We show their reflect rhythms.The...

10.4149/gpb_2021016 article EN General Physiology and Biophysics 2021-01-01

By employing mathematical procedures specific to non-linear dynamics, we devised a method for analyzing all the stages of an epileptic crisis. It can be seen that attractor (reconstructed in states space by time delay method) associated with each stage brain dynamics: normal functioning and crisis (pre-crisis, seizure, post-crisis). Moreover, since Hurst coefficient determined, state seizure characterized either calculating coefficient, or its fractal dimension.

10.18662/brain/15.2/570 article EN BRAIN BROAD RESEARCH IN ARTIFICIAL INTELLIGENCE AND NEUROSCIENCE 2024-07-05

By assimilating any complex system into a multifractal, new approach for describing the dynamics of such systems is proposed by means Multifractal Theory Motion. In context, description these accomplished through continuous and non-differentiable curves (multifractal curves), giving rise to two scenarios. The first scenario Schrödinger-type multifractal scenario, situation in which motion laws can be related SL(2R) algebra invariant functions. second Madelung-type if differentiable...

10.3390/sym17010027 article EN Symmetry 2024-12-27
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