Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Kumudu Siriwardana"'
Autor:
Maheshika Perera, Damayanthi Dahanayake, Lahiru A. Wijenayaka, Kumudu Siriwardana, K.M. Nalin de Silva
Publikováno v:
RSC Advances. 10:29594-29602
Developing materials for efficient environmental remediation via cheap, nontoxic and environmentally benign routes remains a challenge for the scientific community. Here, a novel, facile, and green synthetic approach to prepare gold nanoparticle deco
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81991596583b3bbe52cf1a4c51e41ca3
https://doi.org/10.1039/d0ra05607c
https://doi.org/10.1039/d0ra05607c
Publikováno v:
Analytical Chemistry. 90:785-793
Using the recent polarized resonance synchronous spectroscopic (PRS2) technique, we reported the quantification of photon extinction, absorption, scattering cross-section spectra, and scattering depolarization spectra for AuNPs of different sizes and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9e565594d381be95f9b89480200ef5e
https://doi.org/10.1021/acs.analchem.7b03227
https://doi.org/10.1021/acs.analchem.7b03227
Publikováno v:
Analytical Chemistry. 89:6686-6694
Fluorophores are important but optically complicated photonic materials as they are simultaneous photon absorbers, emitters, and scatterers. Existing studies on fluorophore optical properties have been focused almost exclusively on its photon absorpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfa102de5b57e31bb626a71207196a13
https://doi.org/10.1021/acs.analchem.7b00907
https://doi.org/10.1021/acs.analchem.7b00907
Autor:
Shengli Zou, Charles B. Nettles, Buddhini C. N. Vithanage, Dongmao Zhang, Kumudu Siriwardana, Yadong Zhou
Publikováno v:
Analytical Chemistry. 88:9199-9206
Existing studies on molecular fluorescence have almost exclusively been focused on Stokes-shifted fluorescence spectroscopy (SSF) in which the emitted photon is detected at the wavelengths longer than that for the excitation photons. Information on f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99d88197947a2cf5466b50c2dd1570bf
https://doi.org/10.1021/acs.analchem.6b02420
https://doi.org/10.1021/acs.analchem.6b02420
Publikováno v:
The Journal of Physical Chemistry C. 120:6900-6905
Multicomponent ligand interactions are involved in essentially all practical nanoparticle (NP) applications. Presented herein is the finding that multicomponent ligand binding to gold nanoparticles (AuNPs) can be highly dependent on the sequence of l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3062462a1db1a053aafda65215d4cf53
https://doi.org/10.1021/acs.jpcc.6b01202
https://doi.org/10.1021/acs.jpcc.6b01202
Autor:
Kumudu Siriwardana, Willard E. Collier, Felio Perez, Dongmao Zhang, Ganganath S. Perera, Nuwanthi Suwandaratne
Publikováno v:
The Journal of Physical Chemistry C. 119:20975-20984
Using propanethiol (PrT), 2-mercaptoethanol (ME), glutathione (GSH), and cysteine (Cys) as model thiols, we demonstrated herein that organothiols can induce both silver nanoparticle (AgNP) disintegration and formation under ambient conditions by simp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::622bea71e0c45a1447ed5572729ea8ff
https://doi.org/10.1021/acs.jpcc.5b05965
https://doi.org/10.1021/acs.jpcc.5b05965
Autor:
Dongmao Zhang, Siyam M. Ansar, Shengli Zou, Stas Dogel, Hooman Hosseinkhannazer, Jose Rodriguez, Manuel Gadogbe, Kumudu Siriwardana, Jane Y. Howe, Willard E. Collier
Publikováno v:
The Journal of Physical Chemistry C. 118:24925-24934
Dispersion stability, ligand structure and conformation, and SERS activities of 1-alkanethiol (CnH2n+1SH, n = 2–14) functionalized gold and silver nanoparticles (AuNPs and AgNPs) were studied as a function of alkanethiol carbon chain length and nan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60a66317bebcc795be6717d936ac5a0a
https://doi.org/10.1021/jp507142v
https://doi.org/10.1021/jp507142v
Autor:
Shengli Zou, Kumudu Siriwardana, Willard E. Collier, Erick S. Vasquez, Dongmao Zhang, Keisha B. Walters, Manuel Gadogbe, Siyam M. Ansar
Publikováno v:
The Journal of Physical Chemistry C. 118:11111-11119
Previous researchers proposed that thiolated poly(ethylene glycol) (PEG-SH) adopts a “mushroom-like” conformation on gold nanoparticles (AuNPs) in water. However, information regarding the size and permeability of the PEG-SH mushroom caps and sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::967cbeea907edd4168649d65a5f80e8d
https://doi.org/10.1021/jp501391x
https://doi.org/10.1021/jp501391x
Publikováno v:
Langmuir. 29:10990-10996
The role of cysteine residues in the protein binding kinetics and stability on gold nanoparticles (AuNP) was studied using AuNP localized surface plasmon resonance (LSPR) in combination with an organothiol (OT) displacement method. GB3, the third IgG
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e9355c58091b42b029448059bda17c3
https://doi.org/10.1021/la402239h
https://doi.org/10.1021/la402239h
Autor:
Fathima S. Ameer, Dongmao Zhang, Siyam M. Ansar, Kumudu Siriwardana, Shengli Zou, Wenfang Hu, Willard E. Collier
Publikováno v:
The Journal of Physical Chemistry C. 117:3483-3488
Recent research has demonstrated that the nanoparticle (NP) surface enhanced Raman spectroscopy (SERS) substrate modifies an analyte’s Raman signal through two competitive mechanisms, SERS enhancement and NP inner filter effect, instead of SERS enh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a391f102039cfdd318f8f7932479963
https://doi.org/10.1021/jp311752m
https://doi.org/10.1021/jp311752m