Agnieszka Hryniewicka

ORCID: 0000-0002-1183-054X
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Synthetic Organic Chemistry Methods
  • Supercapacitor Materials and Fabrication
  • Chemical Synthesis and Analysis
  • N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
  • Synthesis and Biological Evaluation
  • Organometallic Complex Synthesis and Catalysis
  • Covalent Organic Framework Applications
  • Conducting polymers and applications
  • Crystallization and Solubility Studies
  • X-ray Diffraction in Crystallography
  • Advancements in Battery Materials
  • Graphene research and applications
  • Metal complexes synthesis and properties
  • Mesoporous Materials and Catalysis
  • Fuel Cells and Related Materials
  • Synthesis and biological activity
  • Metal-Organic Frameworks: Synthesis and Applications
  • Asymmetric Hydrogenation and Catalysis
  • Synthesis and Reactions of Organic Compounds
  • Cancer Treatment and Pharmacology
  • Multicomponent Synthesis of Heterocycles
  • Colorectal Cancer Treatments and Studies
  • Click Chemistry and Applications
  • Chemical Reaction Mechanisms
  • Plant-Derived Bioactive Compounds

Medical University of Białystok
2021-2024

University of Białystok
2010-2020

Herein, we report synthesizing and characterizing materials consisting of carbon nano-onions (CNOs) N S atom-containing polymer precursors, readily available from polyacrylonitrile(PAN)-poly(acrylic esters) block copolymers. Two different acrylic esters...

10.1039/d4ma01230e article EN cc-by Materials Advances 2025-01-01

Herein, we report the functionalization of carbon nano-onions (CNOs) with hydroxyaryl group and subsequent modifications resins: resorcinol-formaldehyde using porogenic Pluronic F-127, resorcinol-formaldehyde-melamine, benzoxazine made bisphenol A triethylenetetramine, calix[4]resorcinarene-derived F-127. Following direct carbonization, extensive physicochemical analysis was carried out, including Fourier transform infrared, Raman X-ray photoelectron spectroscopy, scanning transmission...

10.1038/s41598-023-33874-w article EN cc-by Scientific Reports 2023-04-24

Covalent triazine-based frameworks have attracted much interest recently due to their high surface area and excellent thermal electrochemical stabilities. This study shows that covalently immobilizing structures on spherical carbon nanostructures results in the organization of micro- mesopores a three-dimensional manner. We selected nitrile-functionalized pyrrolo[3,2-b]pyrrole unit form triazine rings construct covalent organic framework. Combining with framework produced material unique...

10.1038/s41598-023-37708-7 article EN cc-by Scientific Reports 2023-07-03

It is established that high rates of morbidity and mortality caused by fungal infections are related to the current limited number antifungal drugs toxicity these agents. Imidazolium salts as azole derivatives can be successfully used in treatment humans. Steroid-functionalized imidazolium were synthesized using a new, more efficient method. As result, 20 obtained with yields, 12 which characterized for first time. They lithocholic acid 3-oxo-23,24-dinorchol-4-ene-22-al fully 1H 13C nuclear...

10.3390/ijms222212180 article EN International Journal of Molecular Sciences 2021-11-10

The organization of specific pores in carbonaceous three-dimensional networks is crucial for efficient electrocatalytic processes and electrochemical performance. Therefore, the synthesis porous materials with ordered well-defined required this field. incorporation carbon nanostructures into polymers can create material structures that are more comparison to those pristine polymers. In study we applied polymer-templated methods preparation, which outer blocks star copolymers form skeleton,...

10.1021/acsapm.1c01788 article EN cc-by ACS Applied Polymer Materials 2022-03-17

Herein, we report the synthesis of mesoporous carbon materials from diblock star copolymers derived polyacrylonitrile. The organization polymers on nano-onion's surface resulted in superficial electrochemical performance.

10.1039/d2cc01452a article EN cc-by-nc Chemical Communications 2022-01-01

A series of bile acid derived 1,2- and 1,3-diamines as well their platinum(II) complexes were designed synthesized in hope to get a highly cytotoxic compound by the combination two bioactive moieties. All obtained subjected cytotoxicity assays vitro some hybrid molecules showed an expected activity.

10.3390/molecules25030655 article EN cc-by Molecules 2020-02-04

The synthesis of a new type Hoveyda-Grubbs 2(nd) generation catalyst bearing modified N-heterocyclic carbene ligands is reported. contains an NHC ligand symmetrically substituted with chromanyl moieties. complex was tested in model CM and RCM reactions. It showed very high activity reactions electron-deficient α,β-unsaturated compounds even at 0 °C. also examined more demanding systems such as conjugated dienes polyenes. stable, storable easy to purify.

10.3762/bjoc.11.300 article EN cc-by Beilstein Journal of Organic Chemistry 2015-12-30

Imidazolium salts (IMSs) are the subject of many studies showing their anticancer activities. In this research, a series novel imidazolium substituted with lithocholic acid (LCA) and alkyl chains various lengths (S1–S10) were evaluated against colon cancer cells. A significant reduction in viability metabolic activity was obtained vitro for DLD-1 HT-29 cell lines when treated tested salts. The results showed that activities agents directly related to chain length, where S6–S8 compounds most...

10.3390/ijms23137019 article EN International Journal of Molecular Sciences 2022-06-24

Three new ruthenium complexes with chromanylmethylidene ligands were synthesized and dynamic NMR analysis of these compounds was carried out. The activation energy for the C–Ru rotation measured first time found to be ~60 kJ mol–1. may potentially serve as latent catalysts olefin metathesis – they promote simple ring-closing reactions very slowly at room temperature, but are much more active slightly elevated temperatures. No asymmetric induction observed when chiral α-tocopherol-derived...

10.1071/ch08443 article EN Australian Journal of Chemistry 2009-01-01

New indenylidene-type second generation catalysts bearing modified unsymmetrically substituted N-heterocyclic carbene ligands were synthesized. The complexes contain an N-mesityl and N′-nitrobenzyl NHC ligand. precursors of free carbenes—imidazolinium salts—were obtained in easy environment-friendly way (under aqueous or neat conditions). new prepared by reaction situ generated carbenes with a 1st indenylidene catalyst, containing pyridine instead tricyclohexylphosphine. tested RCM, CM,...

10.1007/s00706-016-1697-7 article EN cc-by Monatshefte für Chemie - Chemical Monthly 2016-03-10

Background: Metathesis reactions represent an attractive and powerful tool for the synthesis of new carbon-carbon double bonds. The development ruthenium complexes allows to perform transformation in both organic polymer chemistry. Indenylidene catalysts constitute a very important part this area, as they have been found be resistant harsh reaction conditions (temperature presence functional groups). In addition, thanks their good catalytic activities quickly became mainstream...

10.2174/1570179414666170131120437 article EN Current Organic Synthesis 2017-11-28

Covalent triazine frameworks (CTFs) constitute an emerging class of high-performance materials due to their porosity and the possibility structural control at molecular or atomic level.

10.1039/d3ma01003a article EN cc-by Materials Advances 2023-12-04
Coming Soon ...