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Medical Biotechnology Commons

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Full-Text Articles in Medical Biotechnology

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. …


Probiotics: Finding The Right Regulatory Balance, Diane E. Hoffmann, Claire M. Fraser-Liggett, Frank B. Palumbo, Jacques Ravel, Karen H. Rothenberg, Virginia Rowthorn May 2014

Probiotics: Finding The Right Regulatory Balance, Diane E. Hoffmann, Claire M. Fraser-Liggett, Frank B. Palumbo, Jacques Ravel, Karen H. Rothenberg, Virginia Rowthorn

Karen H. Rothenberg

Some products marketed as drugs should be excused from Phase I trials, but safety and efficacy claims for dietary supplements should be more tightly regulated.


Manipulating Fate: Medical Innovations, Ethical Implications, Theatrical Illuminations, Karen H. Rothenberg, Lynn W. Bush Jan 2012

Manipulating Fate: Medical Innovations, Ethical Implications, Theatrical Illuminations, Karen H. Rothenberg, Lynn W. Bush

Faculty Scholarship

Transformative innovations in medicine and their ethical complexities create frequent confusion and misinterpretation that color the imagination. Placed in historical context, theatre provides a framework to reflect upon how the ethical, legal, and social implications of emerging technologies evolve over time and how attempts to control fate through medical science have shaped -- and been shaped by -- personal and professional relationships. The drama of these human interactions is powerful and has the potential to generate fear, create hope, transform identity, and inspire empathy -- a vivid source to observe the complex implications of translating research into clinical practice through …


Studies On The Formation Of Dna-Cationic Lipid Composite Films And Dna Hybridization In The Composites, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Krishna N. Ganesh May 2001

Studies On The Formation Of Dna-Cationic Lipid Composite Films And Dna Hybridization In The Composites, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Krishna N. Ganesh

Faculty Works

The formation of composite films of double-stranded DNA and cationic lipid molecules (octadecylamine, ODA) and the hybridization of complementary single-stranded DNA molecules in such composite films are demonstrated. The immobilization of DNA is accomplished by simple immersion of a thermally evaporated ODA film in the DNA solution at close to physiological pH. The entrapment of the DNA molecules in the cationic lipid film is dominated by attractive electrostatic interaction between the negatively charged phosphate backbone of the DNA molecules and the protonated amine molecules in the thermally evaporated film and has been quantified using quartz crystal microgravimetry (QCM). Fluorescence studies …


Hybridization Of Dna By Sequential Immobilization Of Oligonucleotides At The Air-Water Interface, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Anand Gole, K. N. Ganesh Nov 2000

Hybridization Of Dna By Sequential Immobilization Of Oligonucleotides At The Air-Water Interface, Murali Sastry, Vidya Ramakrishnan, Mrunalini Pattarkine, Anand Gole, K. N. Ganesh

Faculty Works

The hybridization of DNA by sequential electrostatic and hydrogen-bonding immobilization of single-stranded complementary oligonucleotides at the air-water interface with cationic Langmuir monolayers is demonstrated. The complexation of the single-stranded DNA molecules with octadecylamine (ODA) Langmuir monolayers was followed in time by monitoring the pressure-area isotherms. A large (and slow) expansion of the ODA monolayer was observed during each stage of complexation in the following sequence: primary single-stranded DNA followed by complementary single-stranded DNA followed by the intercalator, ethidium bromide. Langmuir-Blodgett (LB) films of the ODA-DNA complex were formed on different substrates and characterized using quartz-crystal microgravimetry (QCM), Fourier transform infrared …


Old Remedies In The Biotechnology Age: Moore V. Regents, Michelle J. Burke, Victoria M. Schmidt Jun 1992

Old Remedies In The Biotechnology Age: Moore V. Regents, Michelle J. Burke, Victoria M. Schmidt

RISK: Health, Safety & Environment (1990-2002)

The California Supreme Court, by excluding a potential remedy, has eliminated many concerns generated by a lower court decision resolving rights to the cell line derived from John Moore's spleen. Yet, the Supreme Court gave little attention to remedies that remain. The authors argue that a constructive trust, a remedy of considerable vintage and great flexibility, could be applied to achieve a just result in such circumstances without affecting the biotechnology world at large.