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Biological applications of porous polymers and covalent organic frameworks : lecture at the Otto-von-Guericke Universität Magdeburg, Tuesday, 27th June 2023, Magdeburg, Germany
Tina Škorjanc, 2023, prispevek na konferenci brez natisa

Opis: Porous organic polymers (POPs) and covalent organic frameworks (COFs) have gained significant attention in the scientific community for a wide array of applications because of their attractive physical and chemical properties. Porosity of these materials provides ample surface area for interaction with targets, while crystallinity allows for highly specific structural tuning. In this seminar, I will present two strategies of utilizing these features of newly prepared materials in biosensing. Firstly, a cationic POP was synthesized, deposited onto interdigitated electrode arrays via a nontraditional electrophoresis technique, and utilized for electrochemical sensing of bacterial cells. As the principle of detection relied on electrostatic interactions between the cationic POP and the anionic bacterial surface, the sensor operated for both Gram-positive and Gram-negative bacteria. Secondly, a small-molecule nitroimidazole target for hypoxia, a low oxygen environment present in tumors, was post-synthetically conjugated to the pores of a fluorescent COF. This material served as a useful hypoxia imaging agent in cancerous cells. The seminar will conclude with some future perspectives on POPs and COFs in biological applications followed by Q & A.
Ključne besede: Porous organic polymers, covalent organic frameworks, biosensors, hypoxia
Objavljeno v RUNG: 13.07.2023; Ogledov: 937; Prenosov: 0
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Pollutant removal with organic macrocycle-based covalent organic polymers and frameworks
Tina Škorjanc, Dinesh Shetty, Ali Trabolsi, 2021, pregledni znanstveni članek

Opis: Air, water, and soil pollution devastate countless ecosystems and deteriorate human health. Adsorption has commonly been used as a pollutant removal technique, but ongoing materials science research is still searching for more efficient, cheaper, and scalable sorbent materials. Herein, we discuss the synthesis and pollutant-capturing abilities of covalent polymeric structures, including covalent organic polymers and covalent organic frameworks that contain organic macrocycles in the backbone of their structures. These organic macrocycles (cyclodextrin, calixarene, cucurbituril, pillararene, and porphyrin) possess cavities and functional groups that can sequester pollutants by forming supramolecular interactions. The insolubility of these materials prominently aids in their regeneration and recyclability potentials. Following a discussion on the synthetic strategies used in the polymerization of each type of macrocycle, environmental applications of these materials are presented. Here, we focus on the removal of micropollutants, charged species, metal ions, oils and organic solvents, perfluorinated substances, iodine, and volatile organic compounds.
Ključne besede: supramolecular interactions, host-guest chemistry, organic macrocycles, covalent polymers, covalent organic frameworks, environmental remediation, adsorption
Objavljeno v RUNG: 09.04.2021; Ogledov: 2298; Prenosov: 65
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Introduction of a Redox-Responsive Switch into calix[4]arene-based Covalent Organic Nanosheets for Environmental Applications
Tina Skorjanc, 2018, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: redox chemistry, viologen, covalent organic polymers, calixarene, dye adsorption, iodine adsorption
Objavljeno v RUNG: 11.09.2020; Ogledov: 2551; Prenosov: 0
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Redox-Tunable Polycationic Polymers for Environmental Applications
Tina Skorjanc, Goinda Das, Selbi Nuryyeva, Thirumurugan Prakasam, Ali Trabolsi, 2017, objavljeni povzetek znanstvenega prispevka na konferenci

Ključne besede: covalent polymers, viologen, redox chemistry, pollutant removal, dye adsorption, iodine capture
Objavljeno v RUNG: 10.09.2020; Ogledov: 2571; Prenosov: 0
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Covalent organic frameworks for biomedical and environmental applications
Tina Skorjanc, predavanje na tuji univerzi

Ključne besede: pollutant removal, covalent organic polymers, drug delivery, imaging
Objavljeno v RUNG: 03.09.2020; Ogledov: 2630; Prenosov: 0
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Viologen-based conjugated covalent organic networks via Zincke reaction
Gobinda Das, Tina Škorjanc, izvirni znanstveni članek

Ključne besede: Zincke reaction, viologen, covalent organic frameworks, covalent organic polymers
Objavljeno v RUNG: 02.09.2020; Ogledov: 2498; Prenosov: 0
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