ORCID Profile
0000-0003-4313-372X
Current Organisation
Duke University
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Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3CP44591G
Abstract: In this perspective we first examine the rich physicochemical properties of dendritic polymers for hosting cations, anions, and polyaromatic hydrocarbons. We then extrapolate these conceptual discussions to the use of dendritic polymers in humic acid antifouling, oil dispersion, copper sensing, and fullerenol remediation. In addition, we review the state-of-the-art of dendrimer research and elaborate on its implications for water purification, environmental remediation, nanomedicine, and energy harvesting.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/C9EN00448C
Abstract: The chemical composition and properties of environmental media determine nanomaterial (NM) transport, fate, biouptake, and organism response.
Publisher: Springer Science and Business Media LLC
Date: 24-07-2013
DOI: 10.1038/SREP02273
Publisher: Royal Society of Chemistry (RSC)
Date: 2012
DOI: 10.1039/C2RA21602G
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3NR02147E
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA43281E
Publisher: American Chemical Society (ACS)
Date: 25-03-2015
DOI: 10.1021/ES505518R
Abstract: We present results from experiments and atomistic molecular dynamics simulations on the remediation of naphthalene by polyamidoamine (PAMAM) dendrimers and graphene oxide (GrO). Specifically, we investigate 3rd-6th generation (G3-G6) PAMAM dendrimers and GrO with different levels of oxidation. The work is motivated by the potential applications of these emerging nanomaterials in removing polycyclic aromatic hydrocarbon contaminants from water. Our experimental results indicate that GrO outperforms dendrimers in removing naphthalene from water. Molecular dynamics simulations suggest that the prominent factors driving naphthalene association to these seemingly disparate materials are similar. Interestingly, we find that cooperative interactions between the naphthalene molecules play a significant role in enhancing their association to the dendrimers and GrO. Our findings highlight that while selection of appropriate materials is important, the interactions between the contaminants themselves can also be important in governing the effectiveness of a given material. The combined use of experiments and molecular dynamics simulations allows us to comment on the possible factors resulting in better performance of GrO in removing polyaromatic contaminants from water.
Publisher: Royal Society of Chemistry (RSC)
Date: 2013
DOI: 10.1039/C3RA43953D
No related grants have been discovered for Nicholas Geitner.