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Full-Text Articles in Life Sciences

Frontiers In The Self-Assembly Of Charged Macromolecules, Khatcher O. Margossian Oct 2022

Frontiers In The Self-Assembly Of Charged Macromolecules, Khatcher O. Margossian

Doctoral Dissertations

The self-assembly of charged macromolecules forms the basis of all life on earth. From the synthesis and replication of nucleic acids, to the association of DNA to chromatin, to the targeting of RNA to various cellular compartments, to the astonishingly consistent folding of proteins, all life depends on the physics of the organization and dynamics of charged polymers. In this dissertation, I address several of the newest challenges in the assembly of these types of materials. First, I describe the exciting new physics of the complexation between polyzwitterions and polyelectrolytes. These materials open new questions and possibilities within the context …


Screening Tcf19 And Kif18b To Determine Co-Regulation With Mybl1 In Triple Negative Breast Cancer Patient Tissues, Tyra Sharda Ivory Aug 2022

Screening Tcf19 And Kif18b To Determine Co-Regulation With Mybl1 In Triple Negative Breast Cancer Patient Tissues, Tyra Sharda Ivory

Theses (2016-Present)

The aggressive behavior in triple-negative breast cancer (TNBC) is due to genetic signaling events, which call for the comprehensive analyses of genes differentially regulated in the cancers. Our laboratory previously found that MYBL1 was over-expressed in a fraction of the TNBC, compared to some luminal, and other breast cancer subtypes. The MYBL1 gene is a proto-oncogene that serves as a strong transcriptional activator. The gene is involved in signaling events related to cell cycle signaling, differentiation, proliferation, and apoptosis, all which are differentially regulated in cancers. Because MYBL1 is a transcription regulator, involved in cancer-related mechanisms and differentially expressed in …


Plasmonic-Based Biosensor For The Early Diagnosis Of Prostate Cancer, Thakshila Liyanage, Bayan Alharbi, Linh Quan, Aurora Esquela-Kerscher, Gymama Slaughter Jan 2022

Plasmonic-Based Biosensor For The Early Diagnosis Of Prostate Cancer, Thakshila Liyanage, Bayan Alharbi, Linh Quan, Aurora Esquela-Kerscher, Gymama Slaughter

Bioelectrics Publications

A tapered optical fiber (TOF) plasmonic biosensor was fabricated and used for the sensitive detection of a panel of microRNAs (miRNAs) in human serum obtained from noncancer and prostate cancer (PCa) patients. Oncogenic and tumor suppressor miRNAs let7a, let-7c, miR-200b, miR-141, and miR-21 were tested as predictive cancer biomarkers since multianalyte detection minimizes false-positive and false-negative rates and establishes a strong foundation for early PCa diagnosis. The biosensing platform integrates metallic gold triangular nanoprisms (AuTNPs) laminated on the TOF to excite surface plasmon waves in the supporting metallic layer and enhance the evanescent mode of the fiber surface. …