Výsledky vyhledávání - "Timothy A Kelf"

Akademický článek

Mapping gigahertz vibrations in a plasmonic–phononic crystal

Autor: Timothy A Kelf, Wataru Hoshii, Paul H Otsuka, Hirotaka Sakuma, Istvan A Veres, Robin M Cole, Sumeet Mahajan, Jeremy J Baumberg, Motonobu Tomoda, Osamu Matsuda, Oliver B Wright

Publikováno v: New Journal of Physics, Vol 15, Iss 2, p 023013 (2013)

We image the gigahertz vibrational modes of a plasmonic–phononic crystal at sub-micron resolution by means of an ultrafast optical technique, using a triangular array of spherical gold nanovoids as a sample. Light is strongly coupled to the plasmon

Externí odkaz: https://doaj.org/article/33e17c1c5f854a7d9699ea775bc6d895

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Barstar:barnase — a versatile platform for colloidal diamond bioconjugation

Autor: Wei Deng, Ekaterina A. Ivukina, Timothy A. Kelf, Andrei V. Zvyagin, Boris V. Veryugin, Sergey V. Lukash, Varun K. A. Sreenivasan, Oleg A. Stremovskiy, Sergey M. Deyev, T. A. Zdobnova

Publikováno v: J. Mater. Chem.. 21:65-68

We report on a bioconjugation platform based on a high-affinity protein pair, barstar:barnase (Bs:Bn), that provides a modular design toolkit capable of strong (covalent) and versatile assembly of bio/nanocomplexes. Luminescent nanodiamonds (140 nm)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ec7ca8be5b65ec976ea74947e4fe9c5c
https://doi.org/10.1039/c0jm02819c

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Whispering gallery mode emission at telecommunications-window wavelengths using PbSe nanocrystals attached to photonic beads

Autor: Jeremy J. Baumberg, Mark Bradley, Timothy A. Kelf, Chris E. Finlayson, Rosario M. Sánchez-Martín, Pier J. A. Sazio

Publikováno v: Semiconductor Science and Technology. 21:L21-L24

We report the selective chemical attachment of infrared emitting PbSe nanocrystal quantum dots onto micron-scale glass photonic beads. Upon optical excitation, photoluminescence from the shell of nanocrystals is seen to couple into the high-Q 'whispe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d12e965d000768dd537d0782f621d0b3
https://doi.org/10.1088/0268-1242/21/3/l01

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Sculpted substrates for SERS

Autor: Yoshihiro Sugawara, P. N. Bartlett, Mamdouh E. Abdelsalam, Jeremy J. Baumberg, Andrea E. Russell, Timothy A. Kelf, Suzanne Cintra

Publikováno v: Faraday Discuss.. 132:191-199

Sculpted SERS-active substrates are prepared by assembling a closed packed monolayer of uniform polystyrene colloidal particles (diameter 350 to 800 nm) onto an evaporated gold surface and then electrodepositing gold through this template to produce

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7b227fceda5327aa6dc187d604e54f4
https://doi.org/10.1039/b508847j

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Electrochemical SERS at a structured gold surface

Autor: Andrea E. Russell, Mamdouh E. Abdelsalam, Jeremy J. Baumberg, Philip N. Bartlett, Suzanne Cintra, Timothy A. Kelf

Publikováno v: Electrochemistry Communications, Vol 7, Iss 7, Pp 740-744 (2005)

Templated electrodeposition of gold to produce thin (

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c49b7f8ff8de415aaa9877fa167bcf3
https://doi.org/10.1016/j.elecom.2005.04.028

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Computational characterization of reflectance confocal microscopy features reveals potential for automated photoageing assessment

Autor: Tarl W. Prow, Andrei V. Zvyagin, Anthony P. Raphael, Timothy A. Kelf, Hans Peter Soyer, Elizabeth M. T. Wurm

Skin photoageing results from a combination of factors including ultraviolet (sun) exposure, leading to significant changes in skin morphology and composition. Conventional methods assessing the degree of photoageing, in particular histopathological

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2451fbdbb89586dda57647bd97fb41a2
https://hdl.handle.net/11541.2/126249

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A modular design of low-background bioassays based on a high-affinity molecular pair barstar:barnase

Autor: Ekaterina A. Grebenik, Timothy A. Kelf, Oleg A. Stremovskiy, Varun K. A. Sreenivasan, Jana M. Say, Sergey M. Deyev, Andrei V. Zvyagin, James R. Rabeau

Publikováno v: Proteomics. 13(9)

High-affinity molecular pairs provide a convenient and flexible modular base for the design of molecular probes and protein/antigen assays. Specificity and sensitivity performance indicators of a bioassay critically depend on the dissociation constan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a083e67680ca872aa3031c28c180168d
https://pubmed.ncbi.nlm.nih.gov/23456920

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Ultrafast vibrations of gold nanorings

Autor: Osamu Matsuda, Duncan S. Sutherland, Oliver B. Wright, Yukihiro Tanaka, Elin Maria Kristina Larsson, Timothy A. Kelf

Publikováno v: Kelf, T, Tanaka, Y, Matsuda, O, Larsson, E, Sutherland, D S & Wright, O 2011, ' Ultrafast vibrations of gold nanorings ', Nano Letters, vol. 11, no. 9, pp. 3893 .

We investigate the vibrational modes of gold nanorings on a silica substrate with an ultrafast optical technique. By comparison with numerical simulations, we identify several resonances in the gigahertz range associated with axially symmetric deform

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94eb37c6f4cdf9346c0e114658527bf4
https://pure.au.dk/portal/da/publications/ultrafast-vibrations-of-gold-nanorings(1674c16d-cdb7-459e-9edb-c092a704d4fa).html

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Scar tissue classification using nonlinear optical microscopy and discriminant analysis

Autor: Anna Guller, Timothy A. Kelf, Martin E. Gosnell, Anatoly B. Shekhter, Andrei V. Zvyagin, Bjørnar Sandnes

Publikováno v: Journal of biophotonics. 5(2)

This paper addresses the scar tissue maturation process that occurs stepwise, and calls for reliable classification. The structure of collagen imaged by nonlinear optical microscopy (NLOM) in post-burn hypertrophic and mature scar, as well as in norm

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f3aa0477860bc7af738bb5ed996d1ee
https://pubmed.ncbi.nlm.nih.gov/22105878

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Luminescent Nanodiamonds for Intracellular Imaging

Autor: Andrei V. Zvyagin, Sergey M. Deyev, Varun K. A. Sreenivasan, Timothy A. Kelf

Publikováno v: Optics in the Life Sciences.

Advances in production of single-digit luminescent nanodiamonds are reported. We report a versatile bioconjugation protocol to dock biomolecules on the colloidal diamond leading to demonstration of non-specific and specific internalisations in cells.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a4eaf50fd3bebd9ebb83dbcdc54b96dc
https://doi.org/10.1364/omp.2011.omd1

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