## Reference
### Peptides-Induced Exfoliation of Graphite in Water to Produce Graphene  
[PERSON] \({}^{1}\), [PERSON] \({}^{2}\), [PERSON] \({}^{3}\), [PERSON] \({}^{3}\), [PERSON] \({}^{3}\), [PERSON] \({}^{2}\) and [PERSON] \({}^{1}\)  
\({}^{1}\) Department of Chemistry, University of Miami, 1301 Memorial Drive, Coral Gables, Florida 33146, United States  
\({}^{2}\) Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia  
\({}^{3}\) Air Force Research Laboratory, Wright-Patterson Air Force Base, Ohio 45433, United States  
Aqueous phase exfoliation of graphite to produce graphene is important for many applications. Peptide/materials recognition have great potential for accomplishing such exfoliation, and also constructing 2D nanostructures with superior precision over structure, composition, and compact arrangements. We have investigated the biomimetic exfoliation of graphite to graphene in water usinggraphene binding peptide. A modified peptide was also examined that incorporated ten carbon fatty acid at the peptide N-terminus to study the effect of peptide modification on the exfoliation using bath sonication. Both the biomolecules showed an efficient graphene exfoliation in water; however fatty-acid modification of the peptide led to the production of materials with lesser defects, showing generation of higher quality of graphene compared to that of peptide alone. Molecular dynamics simulations impart a detailed understanding of the exfoliation process at the molecular level. These findings illustrate the potential and versatility of the peptides in the aqueous phase exfoliation, organization, and activation of 2D nanostructures.  
Exceptionally High C\({}_{2}\)H\({}_{2}\) Adsorption Affinity in Robust Ultramicroporous Metal-Organic Frameworks  
[PERSON] 1, [PERSON] 1, [PERSON] 2, [PERSON] 2 and [PERSON] 1  
1 Department of Chemistry, University of South Florida, 4202 East Fowler Avenue, CHE205, Tampa, FL 33620-5250, United States  
2 College of Chemistry, Nankai University, 94 Weijin Road, Tianjin 300071, China  
Two robust ultramicroporous metal-organic frameworks (MOFs) were synthesized by combining [M(pdt)2]\({}^{-}\) (M = Cu, Ni; pdt = pyrazine-2,3-dithiolate) building units with Cu\({}^{2+}\) ions; they are denoted NKMOF-1-Cu and NKMOF-1-Ni. Experimental gas adsorption measurements revealed that both MOFs exhibit exceptionally high C\({}_{2}\)H\({}_{2}\) uptake at ultra-low pressures. The zero-coverage isosteric heat of adsorption (\(Q_{\rm st}\)) value for C\({}_{2}\)H\({}_{2}\) in NKMOF-1-Ni is close to 60 kJ mol\({}^{-1}\), which is among the highest reported in the literature. In contrast, the low-pressure uptake and \(Q_{\rm st}\) for other gases such as C\({}_{2}\)H\({}_{4}\), CO\({}_{2}\), and CH\({}_{4}\) in this MOF are much lower. Ideal adsorbed solution theory and column breakthrough experiments indicate that NKMOF-1-Ni displays the highest selectivity yet for C\({}_{2}\)H\({}_{2}\)/CO\({}_{2}\) and C\({}_{2}\)H\({}_{4}\)/CH\({}_{4}\) mixtures. Grand canonical Monte Carlo simulations revealed that C\({}_{2}\)H\({}_{2}\) adsorbs at two main binding sites in both MOFs: (1) between the pyrazine units and (2) between the MS\({}_{4}\) units. Single-crystal X-ray diffraction measurements for C\({}_{2}\)H\({}_{2}\) in NKMOF-1-Cu at low pressure revealed the same primary binding site as predicted through modeling. Periodic density functional theory calculations for C\({}_{2}\)H\({}_{2}\) localized at the two sites in both MOFs produced adsorption energies that are comparable to the corresponding experimental C\({}_{2}\)H\({}_{2}\)\(Q_{\rm st}\) values.