Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Ganganath S. Perera"'
Autor:
Ganganath S. Perera, Md. Ataur Rahman, April Blazevski, Alasdair Wood, Sumeet Walia, Madhu Bhaskaran, Sharath Sriram
Publikováno v:
Advanced Materials Technologies. 8:2200965
Autor:
Maleesha De Silva, Dongmao Zhang, Allen LaCour, Ganganath S. Perera, Sumudu Athukorale, Charles U. Pittman
Publikováno v:
The Journal of Physical Chemistry C. 122:2137-2144
Ligand displacement from gold is important for a series of gold nanoparticle (AuNP) applications. Complete nondestructive removal of organothiols from aggregated AuNPs is challenging due to the strong Au–S binding, the steric hindrance imposed by l
Publikováno v:
The Journal of Physical Chemistry C. 121:22487-22495
Proposed mechanisms of monolayer silver formation on gold nanoparticle (AuNP) include AuNP-facilitated under-potential reduction and antigalvanic reduction in which the gold reduces Ag+ into metallic atoms Ag(0). Reported herein is the spontaneous re
Publikováno v:
Small. 17:2005582
The biomarker detection in human body fluids is crucial as biomarkers are important in diagnosing diseases. Conventional invasive techniques for biomarker detection are associated with infection, tissue damage, and discomfort. Non-invasive devices ar
Autor:
Gang Yang, Dongmao Zhang, Charles B. Nettles, Ganganath S. Perera, Felio Perez, T. Keith Hollis
Publikováno v:
The Journal of Physical Chemistry C. 120:23604-23612
Electrolyte interactions with nanoparticles (NPs) at the solid/liquid interfaces are highly complicated as the charged species can be directly adsorbed onto the NP surfaces, confined in the diffusion layer immediately surrounding the NPs, and dispers
Autor:
Felio Perez, Yadong Zhou, Dongmao Zhang, Sandamini H. Alahakoon, Shengli Zou, Ganganath S. Perera, Manuel Gadogbe
Publikováno v:
The Journal of Physical Chemistry C. 120:19878-19884
Organothiol binding to gold nanoparticles (AuNPs) in water proceeds through a deprotonation pathway in which the sulfur-bound hydrogen (RS-H) atoms are released to solution as protons and the organothiol attach to AuNPs as negatively charged thiolate
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
Autor:
Charles B. Nettles, Dongmao Zhang, Shengli Zou, Yadong Zhou, Ganganath S. Perera, T. Keith Hollis
Publikováno v:
Langmuir. 31:8998-9005
Ion-pairing, the association of oppositely charged ionic species in solution and at liquid/solid interfaces has been proposed as a key factor for a wide range of physicochemical phenomena. However, experimental observations of ion pairing at the liga
Autor:
Manuel Gadogbe, Ganganath S. Perera, Shengli Zou, Charles U. Pittman, Dongmao Zhang, Yadong Zhou, Sandamini H. Alahakoon
Publikováno v:
The Journal of Physical Chemistry C. 119:18414-18421
Organodithiols with two distal thiols have been used extensively in gold and silver nanoparticle (AuNP and AgNP) applications. However, understanding the structures and conformations of organodithiols on these nanoparticles is challenging. Reported i
Autor:
Felio Perez, Dongmao Zhang, Kate L. Henderson, Shengli Zou, Ganganath S. Perera, Joseph P. Emerson, Allen LaCour, Yadong Zhou
Publikováno v:
The Journal of Physical Chemistry C. 119:4261-4267
Gold nanoparticles (AuNPs) have been used extensively as surface-enhanced Raman spectroscopic (SERS) substrates for their large SERS enhancements and widely believed chemical stability. Presented is the finding that iodide can rapidly reduce the SERS