Strain Release in Organic Photonic Nanoparticles for Protease Sensing
摘要:
Proteases are overexpressed in most cancers and proteolytic activity has been shown to be a viable marker for cancer imaging in vivo. Herein, we describe the synthesis of luminescence-quenched shell cross-linked nanoparticles as photonic nanoprobes for protease sensing. Protease sensing scheme is based on a "turn-on" mechanism where the protease cleaves peptide cross-linkers of the fluorescence-quenched shell cross-linked NP (OFF state) leading to a highly emissive non-cross linked NP (ON state). The cross-linked particles can be strained by exposure to a good solvent and proteolysis allows for particle expansion (swelling) and a recovery of the luminescence.
[EN] SYNTHESIS OF PERYLENE-PORPHYRIN BUILDING BLOCKS AND POLYMERS THEREOF FOR THE PRODUCTION OF LIGHT-HARVESTING ARRAYS [FR] SYNTHESE D'ELEMENTS CONSTITUTIFS A BASE DE PERYLENE-PORPHYRINE ET POLYMERES ASSOCIES DESTINES A LA PRODUCTION DE RESEAUX COLLECTEURS DE LUMIERE
Synthesis of perylene-porphyrin building blocks and polymers thereof for the production of light-harvesting arrays
申请人:——
公开号:US20030075216A1
公开(公告)日:2003-04-24
The present invention provides methods, compounds, and compositions for the synthesis of light harvesting arrays, such arrays comprising: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to said first electrode, each of said light harvesting rods comprising a polymer of Formula I:
X
1
&Parenopenst;X
m+1
)
m
(I)
wherein m is at least 1; X
1
is a charge separation group, and X
2
through X
m+1
are chromophores. At least one of X
2
through X
m+1
has at least one perylene group coupled thereto.
[EN] SYNTHESIS OF PERYLENE-PORPHYRIN BUILDING BLOCKS AND POLYMERS THEREOF FOR THE PRODUCTION OF LIGHT-HARVESTING ARRAYS<br/>[FR] SYNTHESE D'ELEMENTS CONSTITUTIFS A BASE DE PERYLENE-PORPHYRINE ET POLYMERES ASSOCIES DESTINES A LA PRODUCTION DE RESEAUX COLLECTEURS DE LUMIERE
申请人:UNIV NORTH CAROLINA STATE
公开号:WO2003105237A1
公开(公告)日:2003-12-18
The present invention provides methods, compounds, and compositions for the synthesis of light harvesting arrays, such arrays comprising: (a) a first substrate comprising a first electrode; and (b) a layer of light harvesting rods electrically coupled to said first electrode, each of said light harvesting rods comprising a polymer of Formula (I): wherein m is at least 1; X1 is a charge separation group, and X2 through Xm+1 are chromophores. At least one of X2 through Xm+1 has at least one perylene group coupled thereto.
Strain Release in Organic Photonic Nanoparticles for Protease Sensing
作者:Carlos Cordovilla、Timothy M. Swager
DOI:10.1021/ja301259v
日期:2012.4.25
Proteases are overexpressed in most cancers and proteolytic activity has been shown to be a viable marker for cancer imaging in vivo. Herein, we describe the synthesis of luminescence-quenched shell cross-linked nanoparticles as photonic nanoprobes for protease sensing. Protease sensing scheme is based on a "turn-on" mechanism where the protease cleaves peptide cross-linkers of the fluorescence-quenched shell cross-linked NP (OFF state) leading to a highly emissive non-cross linked NP (ON state). The cross-linked particles can be strained by exposure to a good solvent and proteolysis allows for particle expansion (swelling) and a recovery of the luminescence.