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Full-Text Articles in Life Sciences
Harnessing The Physical Properties Of Zno Nanoparticles For Biological Applications And Factors That Impact Zno Nanoparticle Toxicity, Joshua Eixenberger
Harnessing The Physical Properties Of Zno Nanoparticles For Biological Applications And Factors That Impact Zno Nanoparticle Toxicity, Joshua Eixenberger
Boise State University Theses and Dissertations
The production of materials at the nanoscale leads to novel properties and has made the field of nanotechnology a part of everyday life. Numerous applications of nanomaterials have led to their use in electronics, optics, and medicine. However, creating materials at such a small size brings them on the same scale as many biomolecules and cellular components, altering their interactions with biological systems. This can lead to unintended biological impacts as many nanomaterials are considerably more toxic than their bulk counterpart material. ZnO nanoparticles (nZnO) are particularly interesting in this context. The FDA classifies ZnO as a generally recognized as …
Aptamer-Based Assay For Detection Of Ochratoxin A, Amanda Nicole Bartley
Aptamer-Based Assay For Detection Of Ochratoxin A, Amanda Nicole Bartley
FIU Electronic Theses and Dissertations
Ochratoxin A (OTA) is a potent mycotoxin found in a wide range of agricultural products that has been linked to mitochondrial damage and renal disease. The standard methods for OTA analysis currently rely on the use of high-performance liquid chromatography (HPLC) coupled to fluorescence detection or mass spectrometry. Toward a highthroughput analysis of OTA, a single-stranded DNA aptamer, modified with a fluorophore, coupled to a complementary sequence, modified with a FRET-based quencher that dissociates in the presence of the target toxin, is proposed. In order to integrate “target trapping,” aptamer immobilization methods were explored to mediate interference issues. Assays were …
Fluorescently Labeled Sirnas And Their Theranostic Applications In Cancer Gene Therapy, Stephen David Kozuch
Fluorescently Labeled Sirnas And Their Theranostic Applications In Cancer Gene Therapy, Stephen David Kozuch
Seton Hall University Dissertations and Theses (ETDs)
Gene therapy has emerged as a promising precision nano-medicine strategy in the treatment of numerous diseases including cancer. At the forefront of its utility are the applications of short-interfering RNA (siRNA), that silence oncogenic mRNA expression leading to cancer cell death through the RNA interference (RNAi) pathway. Despite the therapeutic potential, siRNAs are limited by poor pharmacological properties, which has hindered their translation into the clinic. Recent studies, however, have highlighted the applications of modified siRNAs, including the use of fluorescent probes and siRNA nanostructures in cancer detection and treatment. The siRNAs reported in this thesis are designed to target …
Fluorescent Probes And Functionalized Nanoparticles For Bioimaging: Synthesis, Photophysical Properties And Applications, Xinglei Liu
Dissertations
The development of new organic molecular probes with excellent photophysical properties and high fluorescence quantum yields is of considerable interest to many research areas including one- and two-photon fluorescence microscopy, fluorescence-based sensing methodologies, and cancer therapy. Series of organic linear-/non-linear optical molecules including squaraine derivatives, and fluorene derivatives as well as other bioconjugates are designed and synthesized during the doctoral study for the aim of ion detection (Chapter 5), photo dynamic therapy, and deep-tissue imaging (Chapter 4). These optical probes are capable of absorbing light in the near infrared (NIR) window and thus have deeper penetration and cause less photodamage …
Role Of Cationic Side Chains In The Antimicrobial Activity Of C18g., Eric M Kohn, David J Shirley, Lubov Arotsky, Angela M Picciano, Zachary Ridgway, Michael W Urban, Benjamin Carone, Gregory Caputo
Role Of Cationic Side Chains In The Antimicrobial Activity Of C18g., Eric M Kohn, David J Shirley, Lubov Arotsky, Angela M Picciano, Zachary Ridgway, Michael W Urban, Benjamin Carone, Gregory Caputo
Faculty Scholarship for the College of Science & Mathematics
Antimicrobial peptides (AMPs) have been an area of great interest, due to the high selectivity of these molecules toward bacterial targets over host cells and the limited development of bacterial resistance to these molecules throughout evolution. The peptide C18G has been shown to be a selective, broad spectrum AMP with a net +8 cationic charge from seven lysine residues in the sequence. In this work, the cationic Lys residues were replaced with other natural or non-proteinogenic cationic amino acids: arginine, histidine, ornithine, or diaminopropionic acid. These changes vary in the structure of the amino acid side chain, the identity of …