Sidewall functionalized multi-walled carbon nanotubes can be covalently bound parallel to a silicon surface via a self-assembled acid-terminated monolayer used as an organic molecular glue.

Zero-mode-waveguides (ZMWs) are subwavelength apertures on metal films. They are fabricated at the CNF with a lift-off process using electron-beam lithography (Figure 1). We further process these structures for biological studies by topping the surface with polyethylene glycol, and selectively coating the inside of the ZMWs with 2,4-dinitrophenyl (DNP) functionalized polymer. Using fluorescence...

The synthesis of polynorbornene by ring opening metathesis polymerization (ROMP) in the presence of 1 2 generation Grubbs catalyst-functionalized nanotubes, is reported. A characterization of the 2 generation Grubbs catalystfunctionalized nanotubes was performed by TGA (Thermogravimetric Analysis) on-line connected with a quadrupole-mass spectrometer, in order to quantify the amount of catalyst...

A squaraine rotaxane scaffold with four alkyne groups is readily converted into a range of dendritic architectures using high-yielding copper-catalyzed alkyne azide cycloaddition (CuAAC) chemistry. A convergent synthesis approach is more efficient than a divergent pathway. Dendritic squaraine rotaxanes with peripheral amine groups can be further functionalized to produce multivalent deep-red fl...

Damping in Dynamic Force Microscopy: The Role of Functionalized Groups. As a relatively new scanning probe technique, Dynamic Force Microscopy [1] has proved to be a powerful tool, allowing for imaging the topography of a sample surface with true atomic resolution. Besides topographic imaging, the simultaneously recorded damping signal is related to non-conservative interaction between tip and ...

Low hydrophilicity of graphene is one of the major obstacles for biomaterials application. To create some hydrophilic groups on graphene is addressed this issue. Herein, COOH+ ion implantation modified graphene (COOH+/graphene) and COOH functionalized graphene were designed by physical ion implantation and chemical methods, respectively. The structure and surface properties of COOH+/graphene an...

Coumarin-functionalized cellulose sheets were chemically modified using a visible light catalyzed "Photo-Meerwein" arylation. Use of a photomask to pattern the surface resulted in directly visible images.

We have synthesized a series of MCM-41-type mesoporous silica nanoparticles (MSN). The surface of the MSNs are functionalized with 3-aminopropyl (AP), 3-guanidinopropyl (GP), 3-[N-(2-guanidinoethyl)guanidino]propyl (GEGP), and N-folate-3-aminopropyl (FAP). In contrast to the zeta-potential of -18.4 mV for FITC-MSN, the values of zeta-potential for AP-, GP-, GEGP-, and FAP-functionalized FITC-MS...

Proteins are important in bacterial adhesion, but interactions at molecular-scales between proteins and specific functional groups are not well understood. The adhesion forces between four proteins [bovine serum albumin (BSA), protein A, lysozyme, and poly-d-lysine] and COOH, NH2 and OH-functionalized (latex) colloids were examined using colloid probe atomic force microscopy (AFM) as the functi...