Evaluation of amine‐ and amide‐terminated self‐assembled monolayers as ‘Molecular glues’ for Au and SiO₂ substrates

Abstract

A series of organic monolayers containing amine and amide functional groups on silicon and gold substrates were characterized using x-ray photoelectron and infrared spectroscopies. It was determined that the amine-terminated monolayers had 70% of the amine groups in the -NH 2 chemical state after removal from pure water. Next, Escherichia coli bacteria were exposed to the surfaces in order to evaluate the effectiveness of the monolayers as molecular adhesive agents. It was determined that the bacteria adhere readily to all of the amine monolayers but did not interact with the amide-containing monolayer.

Electrostatic Attachment of Gold and Poly(lactic acid) Nanoparticles onto ω‐Aminoalkanoic Acid Self‐Assembled Monolayers on 316L Stainless Steel

“…The N 1s peak splits into two different nitrogen species at 397.9 and 401.1 eV, which are associated with aliphatic and protonated amino groups, respectively. [38][39][40] Deconvolution of these peaks gave a ratio of around 3:1 for À NH 3 + and À NH 2 , which implies that there are more protonated species than free aliphatic amino groups. It should, however, be remembered that the electrochemical deposition of the ADA SAM was carried out in the presence of HClO 4 .…”

Smart water channelling through dual wettability by leaves of the bamboo Phyllostachys aurea

“…Reference source not found.). 36,39,40 The latter may also be associated with hydrogen-bonding between the amide nitrogen atom and nearby hydrogen-containing functional groups, such as alcohols. 41,42 The possibilities of N(1s) amine (-C-NH2) or nitrate functionalities were excluded because they typically appear below 400 eV 42,43 and around 407-408 eV, respectively.…”

Formation, structure, and reactivity of amino-terminated organic films on silicon substrates

“…3-Aminopropyltriethoxysilane (APTES) is one of the most frequently used organosilane agents for the preparation of aminoterminated films on silicon substrates [1][2][3][4][5][6][7][8][9][10][11][12][13]. A general consensus regarding the APTES film formation is that silanization begins with the hydrolysis of ethoxy groups in APTES, a process catalyzed by water, leading to the formation of silanols.…”