Self-organisation through size-exclusion in soft materials
作者:Richard J. Mandle、Edward J. Davis、Constantin-Christian A. Voll、Daniel J. Lewis、Stephen J. Cowling、John W. Goodby
DOI:10.1039/c4tc02991g
日期:——
Can the interplay between steric and electronic properties induced by end-groups be used to dictate self-organisation in soft materials?
端基诱导的立体和电子性质之间的相互作用能否用来指导软材料的自组织?
Maleimido-Terminated Self-Assembled Monolayers
作者:Yayun Wang、Jun Cai、Hubert Rauscher、Rolf Jürgen Behm、Werner A. Goedel
DOI:10.1002/chem.200400896
日期:2005.6.20
surface composition of maleimido groups was tailored further by the formation of mixed monolayers with nonfunctionalized alkyltrichlorosilanes (decyltrichlorosilane). The order of the alkyl chains within the monolayers only slightly depends on the composition of the mixed monolayers. We utilized the maleimido-terminated SAMs to bind various nucleophilic compounds, alkylamines, alkylthiols, and thiol-tagged
A monolayer of C60 tethered to the surface of an inorganic substrate: assembly and structure
作者:Janine A. Chupa、Songtao Xu、Robert F. Fischetti、Robert M. Strongin、John P. McCauley、Amos B. Smith、J. Kent Blasie、Lawrence J. Peticolas、John C. Bean
DOI:10.1021/ja00063a075
日期:1993.5
fullerene C[sub 60] to silicon surfaces via a (pyridyl)[sub n]-OsO[sub4]-C[sub 60] coordination complex employing a pyridyl-terminated, self-assembled monolayer chemisorbed to the substrate. The structure of the (pyridyl)[sub n]-OsO[sub4]-C[sub 60] monolayer complex tethered to the SiO[sub x] surface of the substrate, is fully consistent with both the profile and in-plane structures determined by
我们设计了一种新方法,通过(吡啶基)[sub n]-OsO[sub 4]-C[sub 60] 配位络合物将富勒烯 C[sub 60] 连接到硅表面单层化学吸附在基材上。(pyridyl)[sub n]-OsO[sub 4]-C[sub 60] 单层复合物的结构与衬底的 SiO[sub x] 表面相连,与轮廓和面内结构完全一致由高分辨率 X 射线晶体学确定。虽然轮廓结构已通过 X 射线干涉测量法推导出并被 X 射线全息术证明是独一无二的,但面内/面外结构只是一个模型,与相关 I(Q) 中的六个更强的反射一致[sub xy],Q[sub z]) 衍射数据。6 参考,3 无花果。
Forces between nitrogen-containing self-assembled monolayers (SAMs) and zirconia particles in aqueous solutions
作者:Jing-Jong Shyue、Yin Tang、Mark R. De Guire*
DOI:10.1039/b405788k
日期:——
An atomic force microscope was used to measure the interaction forces between siloxane-anchored organic self-assembled monolayers (SAMs) with nitrogen-containing surface groups on silicon and micron-sized zirconia spheres in aqueous electrolyte solutions. The surface groups studied were alkylammonium salt and amines (primary, secondary, and tertiary). The pH of the solutions ranged from 2.5 to 9 (controlled by adding NaOH or HCl), and their ionic strength was held constant at 0.022 m
(by adding NaCl). The results indicated that the alkylammonium salt surface exhibits a standard Debye double layer, whereas all of the amine surfaces exhibited a Stern layer, i.e. a charge inversion layer. The observed interactions were similar for SAMs formed from surfactants of two different alkyl chain lengths (11 and 16). The corresponding electrostatic interactions comprise the dominant part of the DLVO interactions under the conditions studied. The observed forces were consistent with film deposition results: vanadia films, but not titania films, form on alkylammonium salt surfaces; whereas both titania and vanadia films deposit on amine surfaces.
The present invention provides a composite material including a substrate having an oxide surface, and, a continuous monolayer on the oxide surface, the monolayer including a silicon atom from a trifunctional alkyl/alkenyl/alkynyl silane group that attaches to the oxide surface, an alkyl/alkenyl/alkynyl portion of at least three carbon atoms, a polyalkylene glycol spacer group, and either a reactive site (e.g., a recognition ligand) or a site resistant to non-specific binding (e.g., a methoxy or the like) at the terminus of each modified SAM. The present invention further provides a sensor element, a sensor array and a method of sensing, each employing the composite material. Patterning is also provided together with backfilling to minimize non-specific binding.