Research Topics
| Catherine J MurphySummaryAffiliation: University of South Carolina Country: USA Publications
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Detail Information
Publications
Gold nanoparticles are taken up by human cells but do not cause acute cytotoxicityEllen E Connor
Department of Basic Pharmaceutical Sciences, University of South Carolina, Columbia, SC 29208, USA
Small 1:325-7. 2005- Spatial control of chemistry on the inside and outside of inorganic nanocrystalsCatherine J Murphy
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
ACS Nano 3:770-4. 2009..This Perspective provides a snapshot of the major challenges in controlling the positions of atoms and molecules both in the cores and on the surfaces of inorganic nanocrystals... - Anisotropic metal nanoparticles: Synthesis, assembly, and optical applicationsCatherine J Murphy
Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, South Carolina 29208, USA
J Phys Chem B 109:13857-70. 2005..Short nanorods appear to be more chemically reactive than long nanorods. Finally, optical applications in sensing and imaging, which take advantage of the visible light absorption and scattering properties of the nanorods, are discussed... - Optical sensing with quantum dotsCatherine J Murphy
Department of Chemistry and Biochemistry, University of South Carolina, Columbia 29208, USA
Anal Chem 74:520A-526A. 2002 
Ultrafast dynamics in DNA: "fraying" at the end of the helixDaniele Andreatta
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
J Am Chem Soc 128:6885-92. 2006..In addition, a new relaxation with a well-defined relaxation time of 5 ps appears. This process is assigned to the rapid component of "fraying" at the end of the helix...- Shape-dependent plasmon-resonant gold nanoparticlesChristopher J Orendorff
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
Small 2:636-9. 2006 - Polyelectrolyte-coated gold nanorods and their interactions with type I collagenChristopher G Wilson
Department of Cell Biology and Anatomy, University of South Carolina School of Medicine, Columbia, SC 29209, USA
Biomaterials 30:5639-48. 2009..These results demonstrate the significance of nanoparticle-ECM interactions in determining the bioactivity of nanoparticles... 
Gold nanorods as nanoadmicelles: 1-naphthol partitioning into a nanorod-bound surfactant bilayerAlaaldin M Alkilany
Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
Langmuir 24:10235-9. 2008..The maximum number of bound 1-naphthol molecules is 14.6 +/- 2.2 x 10(3) molecules per gold nanorod, with an equilibrium binding constant of 1.97 +/- 0.79 x 10(4) M(-1) at room temperature...- Gold nanoparticles in biology: beyond toxicity to cellular imagingCatherine J Murphy
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Acc Chem Res 41:1721-30. 2008..The local mechanical environment experienced by cells is part of a complex feedback loop that influences cell metabolism, gene expression, and migration... - Effect of lesions on the dynamics of DNA on the picosecond and nanosecond timescales using a polarity sensitive probeMark M Somoza
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
Nucleic Acids Res 32:2494-507. 2004.... - Age-dependent expression of collagen receptors and deformation of type I collagen substrates by rat cardiac fibroblastsChristopher G Wilson
University of South Carolina School of Medicine, Department of Cell Biology and Anatomy, 6439 Garners Ferry Road, Columbia, SC 29209, USA
Microsc Microanal 17:555-62. 2011..Consistent with recent work demonstrating age-dependent interactions with myocytes, our results indicate that interactions between cardiac fibroblasts and the extracellular matrix change with age... - Nanoscale structure and dynamics of DNAMark A Berg
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
Phys Chem Chem Phys 10:1229-42. 2008.... - Aspect ratio dependence on surface enhanced Raman scattering using silver and gold nanorod substratesChristopher J Orendorff
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
Phys Chem Chem Phys 8:165-70. 2006..Results suggest that enhancement factors are a factor of 10-10(2) greater for substrates that have plasmon band overlap with the excitation source than for substrates whose plasmon bands do not... - Power-law solvation dynamics in DNA over six decades in timeDaniele Andreatta
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, 29208, USA
J Am Chem Soc 127:7270-1. 2005..The various subcomponents may be so strongly coupled that their motions cannot be treated separately... - The effect of gold nanorods on cell-mediated collagen remodelingPatrick N Sisco
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Nano Lett 8:3409-12. 2008..These data show that nanomaterials can modulate cell-mediated matrix remodeling and suggest that the targeted delivery of nanomaterials can be applied for antifibrotic therapies... - Targeted photothermal lysis of the pathogenic bacteria, Pseudomonas aeruginosa, with gold nanorodsR Sean Norman
Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina 29208, USA
Nano Lett 8:302-6. 2008..We find that, following nanorod attachment to the bacterial cell surface, exposure to near-infrared radiation results in a significant reduction in bacterial cell viability... - Azide-derivatized gold nanorods: functional materials for "click" chemistryAnand Gole
Department of Chemistry and Biochemistry and The W M Keck Open Laboratory for Bionanoparticle Technology, Discovery and Development, University of South Carolina, Columbia, SC 29208, USA
Langmuir 24:266-72. 2008..This general and simple approach is easy, specific with higher yields, environmentally benign, and applicable to a wide range of analytes and biomolecules... - Gold nanoparticles with a polymerizable surfactant bilayer: synthesis, polymerization, and stability evaluationAlaaldin M Alkilany
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Langmuir 25:13874-9. 2009.... - Sodium-ion binding to DNA: detection by ultrafast time-resolved stokes-shift spectroscopyLatha A Gearheart
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
J Am Chem Soc 125:11812-3. 2003..Our interpretation is that a subpopulation of helices have sodium cations bound in a fashion that slows the normal dynamics... - Role of monovalent counterions in the ultrafast dynamics of DNASobhan Sen
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
J Phys Chem B 110:13248-55. 2006..The lack of change in the spectral shape of the emission shows that neither the broadly distributed power-law relaxation nor the extra nanosecond dynamics are due to heterogeneity in the relaxation rates of different helices... - Uptake, distribution and toxicity of gold nanoparticles in tobacco (Nicotiana xanthi) seedlingsTara Sabo-Attwood
Department of Environmental Health Sciences and NanoCenter, Arnold School of Public Health, University of South Carolina, Columbia, South Carolina, USA
Nanotoxicology 6:353-60. 2012..5 nm AuNPs. Overall, results of this work show the potential for AuNPs to enter plants through size-dependent mechanisms, translocate to cells and tissues and cause biotoxicity... - Optical detection of thymine dinucleoside monophosphate and its cis-syn photodimer by inorganic nanoparticlesK K Caswell
Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, Columbia, South Carolina 29208, USA
J Fluoresc 14:407-15. 2004..Such changes in molecular properties can be detected by differential quenching of CdS nanoparticle luminescence and by surface-enhanced Raman scattering spectroscopy on metal nanoparticle substrates... - The golden age: gold nanoparticles for biomedicineErik C Dreaden
Laser Dynamics Laboratory, Department of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 0400, USA
Chem Soc Rev 41:2740-79. 2012.... - Biotin-streptavidin-induced aggregation of gold nanorods: tuning rod-rod orientationAnand Gole
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, 29208, USA
Langmuir 21:10756-62. 2005..The gold nanorods were characterized at each stage by UV-vis spectroscopy, light scattering, and transmission electron microscopy (TEM) measurements... - Preferential end-to-end assembly of gold nanorods by biotin-streptavidin connectorsK K Caswell
Department of Chemistry and Biochemistry, University of South Carolina, 631 Sumter Street, Columbia, SC 29208, USA
J Am Chem Soc 125:13914-5. 2003..Here we report that gold nanorods, aspect ratio 18, can be functionalized with a biotin disulfide, and subsequent addition of streptavidin links the rods together in an end-to-end manner much more often than expected... - Transfer of gold nanoparticles from the water column to the estuarine food webJohn L Ferry
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Nat Nanotechnol 4:441-4. 2009..4%. Clams and biofilms accumulated the most nanoparticles on a per mass basis, suggesting that gold nanorods can readily pass from the water column to the marine food web... - Surface-coverage dependence of surface-enhanced raman scattering from gold nanocubes on self-assembled monolayers of analytePatrick N Sisco
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
J Phys Chem A 113:3973-8. 2009..SERS intensities increase linearly with increasing nanocube coverage up to a factor of 7 in the best case studied here, with enhancement factors of up to 10(13)... - Using gold nanorods to probe cell-induced collagen deformationJohn W Stone
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Nano Lett 7:116-9. 2007..We find that measurable tension and compression exist in the intercellular matrix at the length scale of micrometers, as the cells assess, adapt, and rearrange their environment... - Complex local dynamics in DNA on the picosecond and nanosecond time scalesEric B Brauns
Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, USA
Phys Rev Lett 88:158101. 2002..Sequence dependence of the localized dynamics of DNA does not appear within this time range. We infer that 30%-50% of the relaxation is faster than 40 ps, has a nonlogarithmic decay and has a sequence dependent amplitude... - Influence of the nature of quantum dot surface cations on interactions with DNARahina Mahtab
Department of Biological and Physical Sciences, South Carolina State University, Orangeburg, SC 29117, USA
J Inorg Biochem 101:559-64. 2007..In this paper, we investigate the effect that various monovalent and divalent cations have on the binding of 4.5 nm CdS quantum dots to oligonucleotides that have sequence-directed intrinsic structure... - Deposition of CTAB-terminated nanorods on bacteria to form highly conducting hybrid systemsVikas Berry
University of Nebraska, Lincoln, Nebraska 68588-0643, USA
J Am Chem Soc 127:17600-1. 2005.... - Probing DNA structure with nanoparticlesRahina Mahtab
Department of Physical Sciences, South Carolina State University, Orangeburg, USA
Methods Mol Biol 303:179-90. 2005..Structural polymorphism in DNA may serve as a biological signal in vivo, highlighting the need for recognition of DNA structure in addition to DNA sequence in biotechnology assays...