Surface-activation of semiconductor nanostructures for...

Details Surface-activation of semiconductor nanostructures for... Surface-activation of semiconductor nanostructures for...

2011-08-23

2011-08-23

Phung, Anh (Department: 2824)

Semiconductor device manufacturing: process

Radiation or energy treatment modifying properties of...

Ionized irradiation

C257SE21218, C257SE21311, C257SE21334, C438S712000, C438S788000, C438S960000, C977S774000, C977S786000, C977S888000

Reexamination Certificate

active

08003551

ABSTRACT:
The present invention provides means and methods for producing surface-activated semiconductor nanoparticles suitable for in vitro and in vivo applications that can fluoresce in response to light excitation. Semiconductor nanostructures can be produced by generating a porous layer in semiconductor substrate comprising a network of nanostructures. Prior or subsequent to cleavage from the substrate, the nanostructures can be activated by an activation means such as exposing their surfaces to a plasma, oxidation or ion implantation. In some embodiments, the surface activation renders the nanostructures more hydrophilic, thereby facilitating functionalization of the nanoparticles for either in vitro or in vivo use.

REFERENCES:
patent: 5427648 (1995-06-01), Pamulapati et al.
patent: 6235618 (2001-05-01), Jeong-Sook et al.
patent: 6444143 (2002-09-01), Bawendi et al.
patent: 6514772 (2003-02-01), Siiman et al.
patent: 6548264 (2003-04-01), Tan et al.
patent: 6585947 (2003-07-01), Nayfeh et al.
patent: 6623559 (2003-09-01), Huang
patent: 6632694 (2003-10-01), Torvik
patent: 6649138 (2003-11-01), Adams et al.
patent: 7306963 (2007-12-01), Linden
patent: 7524776 (2009-04-01), Kalkhoran et al.
patent: 2002/0132101 (2002-09-01), Fonash et al.
patent: 2004/0229447 (2004-11-01), Swihart et al.
patent: 2005/0233487 (2005-10-01), Liu et al.
patent: WO-03/087291 (2003-10-01), None
Bley et al, Characterization of Silicon Nanoparticles Prepared from Porous Silicon, Chem. Mater. 1996, 8, 1881-1888.
Zhang et al., Luminescent Si Nanoparticles in Sol-Gel Matrices Stabilized by Amino Acids, Chem. Mater. 1997, 9, 2249-2251.
U.S. Appl. No. 10/120,974, Roger G. Little.
Heinrich et al., Luminescent Colloidal Silicon Suspensions from Porous Silicon, Science, vol. 255, pp. 66-68.

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