Marija Drndic

US Patent:

7813160, Oct 12, 2010

Filed:

Jan 11, 2006

Appl. No.:

11/329471

Inventors:

Marija Drndic - Philadelphia PA, US
Michael D. Fischbein - Philadelphia PA, US

Assignee:

The Trustees Of The University Of Pennsylvania - Philadelphia PA

International Classification:

G11C 11/00

US Classification:

365151, 365111, 977943

Abstract:

Memory devices and recordable media are disclosed that take advantage of memory effects in the electronic transport in CdSe nanocrystal (NC) quantum dot arrays. Conduction through a NC array can be reduced with a negative voltage and then restored with a positive voltage. Light can also be used to restore or even increase the NC array conduction. The switching of the conduction in CdSe NC arrays and found the behavior to be highly sensitive to the value and duration of the laser and voltage pulses.

US Patent:

7887720, Feb 15, 2011

Filed:

Oct 29, 2009

Appl. No.:

12/608348

Inventors:

Marija Drndic - Philadelphia PA, US
Sandra Zivanovic - Ruston LA, US
Difei Qi - Ruston LA, US

Assignee:

The Trustees of the University of Pennsylvania - Philadelphia PA
Louisiana Tech University Foundation, Inc. - Ruston LA

International Classification:

H01B 1/12
H01L 29/08
H01L 31/042

US Classification:

25251933, 25251934, 252500, 257 40, 136250

Abstract:

Disclosed are compositions including semiconducting polymers and quantum dot nanocrystals. Also disclosed are optoelectronic devices prepared from semiconducting polymers and quantum dot nanocrystals. Also are disclosed methods of increasing the quantum efficiency in optoelectronic devices and methods of generating a photocurrent.

US Patent:

8039368, Oct 18, 2011

Filed:

Mar 21, 2006

Appl. No.:

11/909356

Inventors:

Marija Drndic - Philadelphia PA, US
Michael Fischbein - Philadelphia PA, US

Assignee:

The Trustees of The University of Pennsylvania - Philadelphia PA

International Classification:

H01L 21/20

US Classification:

438478, 257E23145

Abstract:

Disclosed are methods of fabricating nanogaps and various devices composed of nanogaps. The nanogap devices disclosed herein can be used as in a number of electronic, photonic and quantum mechanical devices, including field-effect transistors and logic circuits.

US Patent:

8173335, May 8, 2012

Filed:

Jul 13, 2007

Appl. No.:

12/373607

Inventors:

Marija Drndic - Philadelphia PA, US
Michael D Fischbein - Philadelphia PA, US

Assignee:

The Trustees of the University of Pennsylvania - Philadelphia PA

International Classification:

G03C 5/00

US Classification:

430 30, 430296, 430311, 430319, 430942, 438584, 250396 R, 25049222

Abstract:

Provided are beam ablation lithography methods capable of removing and manipulating material at the nanoscale. Also provided are nanoscale devices, nanogap field effect transistors, nano-wires, nano-crystals and artificial atoms made using the disclosed methods.

US Patent:

20070102694, May 10, 2007

Filed:

Feb 6, 2006

Appl. No.:

11/348039

Inventors:

Marija Drndic - Philadelphia PA, US
Sandra Selmic - Ruston LA, US
Difei Qi - Phoenix AZ, US

Assignee:

Louisiana Tech University Foundation, Inc. - Ruston LA
The Trustees of the University of Pennsylvania - Philadelphia PA

International Classification:

H01L 31/00

US Classification:

257014000

Abstract:

Disclosed are compositions including semiconducting polymers and quantum dot nanocrystals. Also disclosed are optoelectronic devices prepared from semiconducting polymers and quantum dot nanocrystals. Also are disclosed methods of increasing the quantum efficiency in optoelectronic devices and methods of generating a photocurrent.

US Patent:

20080017845, Jan 24, 2008

Filed:

May 25, 2005

Appl. No.:

11/597069

Inventors:

Marija Drndic - Philadelphia PA, US
Michael Fischbein - Philadelphia PA, US

Assignee:

The Trustees of the University of Pennsylvania - Philadelphia PA

International Classification:

H01L 29/24
H01L 21/336
H01L 29/78
H01L 51/00

US Classification:

257024000, 205118000, 427372200, 427058000, 428323000, 428332000, 257E29100, 977750000, 977752000, 977774000, 977762000

Abstract:

Disclosed herein are methods for assembling nanostructures. The assembling methods include contacting the plurality of nanostructures to a substrate having one or more discontinuities. At least a portion of the plurality of nanostructures assemble adjacent to the discontinuity, the assembled nanostructures including at least one nanostructure having a bridging, molecule. Devices, such as field-effect transistors, are also disclosed.

US Patent:

20130092541, Apr 18, 2013

Filed:

Aug 16, 2012

Appl. No.:

13/587141

Inventors:

Marija Drndic - Philadelphia PA, US
Meni Wanunu - Chestnut Hill MA, US
Tali Dadosh - Elkins Park PA, US

Assignee:

THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA - Philadelphia PA

International Classification:

G01N 27/447

US Classification:

204543, 204627

Abstract:

Disclosed are solid-state nanopore devices having pores of nanometer-scale thickness, which ultrathin (e.g., less than 10 nm thick) pores enable devices having improved resolution. Also provided are methods of fabricating such devices and of using such devices. The invention also provides nanometer-thick membranes and related methods of fabricating such membranes, which membranes are useful in high resolution microscopy applications. Further disclosed are devices for detection of analytes—including miRNA—that may be small in size and may also be present in only small quantities.

US Patent:

20130186758, Jul 25, 2013

Filed:

Dec 5, 2012

Appl. No.:

13/706060

Inventors:

The Trustees Of The University Of Pennsylvania - Philadelphia PA, US
University Of Delaware - Newark DE, US
Marija DRNDIC - Philadelphia PA, US

Assignee:

University Of Delaware - Newark DE
The Trustees Of The University Of Pennsylvania - Philadelphia PA

International Classification:

G01N 27/447

US Classification:

204452, 204603

Abstract:

Disclosed are devices that feature nanopores formed in graphene sheets, such as graphene ribbons. The graphene sheets include an edge irregularity, such as a zig-zag configuration, a chiral edge, or an armchair-configuration edge, which edges confer on the devices the ability to discriminate between different subunits of a macromolecule translocated through the nanpore. The disclosed devices and methods have application to DNA sequencing and analysis, among other applications.