US – Page 267 – TechConnect Briefs

Potential anti-inflammatory properties of biologically-synthesized nanoparticles of gold or silver

Vercruysse K.P., Harper S.L., Ivory D.M., Whalen M.M., Saili K.S., Tanguay R.L., Tennessee State University, US

Ionic gold (Au) compounds have been used for many years in the treatment of rheumatoid arthritis (aurotherapy). Despite their long history, the basis for their therapeutic properties has never been established definitively. We have observed [...]

Magnetically associated carbon nanotubes with mammalian cells: flow cytometry characterization and applications

Cai D., Blair D., Dufort F.J., Gumina M.R., Huang Z., Hong G., Kempa K., Ren Z.F., Chiles T.C., Boston College, US

Magnetic CNT can be driven into cells because it has an embedded Ni nanoparticle in its tip. We show herein that CNT-cell complexes are formed in the presence of a magnetic field. The complexes were [...]

Temperature Sensitive Liposomes for Local Drug delivery Using Focused Ultrasound

Larabi M., Mackanos M., Shinde R., Contag C., Guccione S., Stanford University, US

Local delivery of therapeutic drugs will increase drug concentration at the site of treatment for maximum efficacy, and reduce systemic drug exposure. The encouraging results obtain in first phase of the clinical study of doxorubicin [...]

Myelin-mimetic lipid multilayers

Iyer S., Dattelbaum A., Majewski J., Shreve A., Los Alamos National Laboratory, US

The myelin sheath is among nature’s most fascinating nanoscale assemblies. In spite of its critical role in physiology, several questions on the structure-function relationship of myelin and its components remain unanswered. This is chiefly due [...]

Quantum dot (Qdot) labeling of gene expression analysis and single molecule imaging in neurons

Jeromin A., Riley Z., Byrnes E., Parry S., Smith S., Dee N., Jones A., Allen Institute for Brain Science, US

The Allen Brain Atlas1 is the first large scale atlas of gene expression in the mouse brain, using chromogenic in situ hybridization (cISH) of over 20,000 genes.Qdots have excellent potential for muliplex imaging of gene [...]

Evolutionary selection of bone mineral hydroxyapatite binding peptide using landscape phage library

Modali S., Abbineni G., Jayanna P., Petrenko V., Mao C., University of Oklahoma, US

Hydroxyapatite [(Ca5(PO4)3OH)2] is a biomineral which is associated with bone proteins to form mineralized extracellular matrix in a mature bone. Using two landscape phage libraries, in which random octa-peptides and nona-peptides are displayed on all [...]

Landscape Phage Probes for Breast Cancer Cells

Fagbohun O.A., Bedi D., Jayanna P.K., Deinnocentes P.A., Bird R.C., Petrenko V.A., Auburn University, US

Landscape phage libraries are collections of filamentous phages displaying random foreign peptides on all 4,000 surface domains of the major coat protein. They serve as a rich source of bioselective materials that are used in [...]

Landscape phage probes for PC3 prostate carcinoma cells

Jayanna P.K., Deinnocentes P., Bird R.C., Petrenko V.A., Auburn University, US

Cancer chemotherapy is complicated by a lack of selective drug targets. The use of liposomes as vectors for drug delivery has provided a route to selective accumulation of nanoparticles in the tumor interstitium due to [...]

Engineering hybrid nanostructures with phage particles

Makowski L., Chen L., Argonne National Laboratory, US

Assembling complex structures comprising multiple, inorganic functional elements represents a significant engineering challenge. We have constructed hybrid nanostructures based on T7 and M13 phage and incorporating a variety of metals and metal oxides. Synthesis of [...]

Landscape phage libraries as a source of bioselective nanomaterials

Kuzmicheva G.A., Sorokulova I.B., Jayanna P.K., Petrenko V.A., Auburn University, US

New generations of targeted diagnostic, therapeutic and imaging nanodevices require robust molecular recognition interfaces, which bind their targets with high specificity and selectivity. These bioselective interfaces can be formed by recombinant filamentous phages or their [...]