Výsledky vyhledávání - "Mallapragada, Surya"

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Effect of Grafting Density on the Two-dimensional Assembly of Nanoparticles

Autor: Nayak, Binay P., Batey, James Ethan, Kim, Hyeong Jin, Wang, Wenjie, Bu, Wei, Zhang, Honghu, Mallapragada, Surya K., Vaknin, David

Employing grazing-incidence small-angle X-ray scattering (GISAXS) and X-ray reflectivity (XRR), we demonstrate that films composed of polyethylene glycol (PEG)-grafted silver nanoparticles (AgNP) and gold nanoparticles (AuNP), as well as their binary

Externí odkaz: http://arxiv.org/abs/2410.05456

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Assembling PNIPAM-Capped Gold Nanoparticles in Aqueous Solutions

Autor: Nayak, Binay P., Kim, Hyeong Jin, Nayak, Srikanth, Wang, Wenjie, Bu, Wei, Mallapragada, Surya K., Vaknin, David

Publikováno v: ACS Macro Lett. 2023, 12, XXX, 1659 to 1664

Employing small angle X-ray scattering (SAXS), we explore the conditions under which the assembly of gold nanoparticles (AuNPs) grafted with the thermo-sensitive polymer Poly(N-isopropylacrylamide) (PNIPAM) emerges. We find that short-range order ass

Externí odkaz: http://arxiv.org/abs/2312.04490

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Two-dimensional assembly of gold nanoparticles grafted with charged-end-group polymers

Autor: Kim, Hyeong Jin, Nayak, Binay P., Zhang, Honghu, Ocko, Benjamin M., Travesset, Alex, Vaknin, David, Mallapragada, Surya K., Wang, Wenjie

Publikováno v: J. Colloid Interface Sci. Volume 650, Part B (2023); Pages 1941-1948

Hypothesis: Introducing charged terminal groups to polymers that graft nanoparticles enables Coulombic control over their assembly by tuning the pH and salinity of aqueous suspensions. Experiments: Gold nanoparticles (AuNPs) are grafted with poly(eth

Externí odkaz: http://arxiv.org/abs/2305.16512

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