Micro-photoluminescence study of bio-conjugated CdSe/ZnS nanocrystals

L. Borkovska; N. Korsunska; T. Stara; O. Kolomys; V. Strelchuk; T. Kryshtab; S. Ostapenko; G. Chornokur; C. M. Phelan

doi:10.1557/opl.2013.1179

Micro-photoluminescence study of bio-conjugated CdSe/ZnS nanocrystals

L. Borkovska, N. Korsunska, T. Stara, O. Kolomys, V. Strelchuk, T. Kryshtab, S. Ostapenko, G. Chornokur, C. M. Phelan

Escuela Superior de Física y Matemáticas (ESFM)

Research output: Contribution to journal › Conference article › peer-review

Abstract

The effect of bio-conjugation of CdSe/ZnS core-shell quantum dots (QDs) with Interleukin 10 (IL-10) antibodies on the aging of photoluminescence (PL) spectra of the QDs was investigated. The aging occurred upon storage of QDs for about 2 years or thermal annealing at 190 oC for up to 12 hours at atmospheric ambience and consisted in blue shifting the PL band position, increasing a PL band half-width and decreasing the PL intensity. The bio-conjugation is found to promote PL aging. The aging upon storage is attributed to the oxidation that decreases the QD core dimension, while the aging upon thermal annealing can be due to both oxidation and alloying of CdSe core and ZnS shell.

Translated title of the contribution	Estudio de microfotoluminiscencia de nanocristales de CdSe/ZnS bioconjugados
Original language	English
Pages (from-to)	157-162
Number of pages	6
Journal	Materials Research Society Symposium Proceedings
Volume	1617
DOIs	https://doi.org/10.1557/opl.2013.1179
State	Published - 2013
Event	22nd International Materials Research Congress, IMRC 2013 - Cancun, Mexico Duration: 11 Aug 2013 → 15 Aug 2013

Keywords

Bio-conjugation
colloidal particles
luminescence

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10.1557/opl.2013.1179

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title = "Micro-photoluminescence study of bio-conjugated CdSe/ZnS nanocrystals",

abstract = "The effect of bio-conjugation of CdSe/ZnS core-shell quantum dots (QDs) with Interleukin 10 (IL-10) antibodies on the aging of photoluminescence (PL) spectra of the QDs was investigated. The aging occurred upon storage of QDs for about 2 years or thermal annealing at 190 oC for up to 12 hours at atmospheric ambience and consisted in blue shifting the PL band position, increasing a PL band half-width and decreasing the PL intensity. The bio-conjugation is found to promote PL aging. The aging upon storage is attributed to the oxidation that decreases the QD core dimension, while the aging upon thermal annealing can be due to both oxidation and alloying of CdSe core and ZnS shell.",

keywords = "Bio-conjugation, colloidal particles, luminescence",

author = "L. Borkovska and N. Korsunska and T. Stara and O. Kolomys and V. Strelchuk and T. Kryshtab and S. Ostapenko and G. Chornokur and Phelan, {C. M.}",

year = "2013",

doi = "10.1557/opl.2013.1179",

language = "Ingl{\'e}s",

volume = "1617",

pages = "157--162",

journal = "Materials Research Society Symposium Proceedings",

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publisher = "Materials Research Society",

note = "22nd International Materials Research Congress, IMRC 2013 ; Conference date: 11-08-2013 Through 15-08-2013",

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TY - JOUR

T1 - Micro-photoluminescence study of bio-conjugated CdSe/ZnS nanocrystals

AU - Borkovska, L.

AU - Korsunska, N.

AU - Stara, T.

AU - Kolomys, O.

AU - Strelchuk, V.

AU - Kryshtab, T.

AU - Ostapenko, S.

AU - Chornokur, G.

AU - Phelan, C. M.

PY - 2013

Y1 - 2013

N2 - The effect of bio-conjugation of CdSe/ZnS core-shell quantum dots (QDs) with Interleukin 10 (IL-10) antibodies on the aging of photoluminescence (PL) spectra of the QDs was investigated. The aging occurred upon storage of QDs for about 2 years or thermal annealing at 190 oC for up to 12 hours at atmospheric ambience and consisted in blue shifting the PL band position, increasing a PL band half-width and decreasing the PL intensity. The bio-conjugation is found to promote PL aging. The aging upon storage is attributed to the oxidation that decreases the QD core dimension, while the aging upon thermal annealing can be due to both oxidation and alloying of CdSe core and ZnS shell.

AB - The effect of bio-conjugation of CdSe/ZnS core-shell quantum dots (QDs) with Interleukin 10 (IL-10) antibodies on the aging of photoluminescence (PL) spectra of the QDs was investigated. The aging occurred upon storage of QDs for about 2 years or thermal annealing at 190 oC for up to 12 hours at atmospheric ambience and consisted in blue shifting the PL band position, increasing a PL band half-width and decreasing the PL intensity. The bio-conjugation is found to promote PL aging. The aging upon storage is attributed to the oxidation that decreases the QD core dimension, while the aging upon thermal annealing can be due to both oxidation and alloying of CdSe core and ZnS shell.

KW - Bio-conjugation

KW - colloidal particles

KW - luminescence

UR - http://www.scopus.com/inward/record.url?scp=84899575676&partnerID=8YFLogxK

U2 - 10.1557/opl.2013.1179

DO - 10.1557/opl.2013.1179

M3 - Artículo de la conferencia

AN - SCOPUS:84899575676

SN - 0272-9172

VL - 1617

SP - 157

EP - 162

JO - Materials Research Society Symposium Proceedings

JF - Materials Research Society Symposium Proceedings

T2 - 22nd International Materials Research Congress, IMRC 2013

Y2 - 11 August 2013 through 15 August 2013

ER -

Micro-photoluminescence study of bio-conjugated CdSe/ZnS nanocrystals

Abstract

Keywords

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