Search Results - "Richardson, Tim H."
-
1
Selective Detection of Volatile Organic Compounds by Spectral Imaging of Porphyrin Derivatives Bound to TiO2 Porous Films
Published in ACS applied materials & interfaces (24-10-2012)“…In this work, the carboxylic acid derivatives of a free-base porphyrin, 5,10,15,20-tetrakis(4-carboxyphenyl)-21H,23H-porphyrin, and 10 of its metal derivatives…”
Get full text
Journal Article -
2
Investigation of Free Base, Mg, Sn, and Zn Substituted Porphyrin LB Films as Gas Sensors for Organic Analytes
Published in The journal of physical chemistry. B (24-08-2006)“…The visible absorption spectra of various substituted porphyrin compounds both in chloroform solution and as Langmuir−Blodgett (LB) solid-state films have been…”
Get full text
Journal Article -
3
Fabrication of Gold Micro- and Nanostructures by Photolithographic Exposure of Thiol-Stabilized Gold Nanoparticles
Published in Nano letters (01-03-2006)“…Exposure of thiol-stabilized gold nanoparticles supported on silicon wafers to UV light leads to oxidation of the thiol molecules and coagulation of the…”
Get full text
Journal Article -
4
Dis-aggregation of an insoluble porphyrin in a calixarene matrix: characterization of aggregate modes by extended dipole model
Published in Physical chemistry chemical physics : PCCP (01-01-2008)“…In this paper, the different aggregation modes of a water-insoluble porphyrin (EHO) mixed with an amphiphilic calix[8]arene (C8A), at the air-water interface…”
Get more information
Journal Article -
5
Optimization of mixed Langmuir–Blodgett films of a water insoluble porphyrin in a calixarene matrix for optical gas sensing
Published in Thin solid films (03-01-2011)“…The gas sensing capabilities of Langmuir–Blodgett (LB) mixed films of 5,10,15,20-tetrakis[3,4-bis(2-ethylhexyloxy)phenyl]-21H,23H-porphine (EHO) and…”
Get full text
Journal Article -
6
Interaction between Langmuir and Langmuir−Blodgett Films of Two Calix[4]arenes with Aqueous Copper and Lithium Ions
Published in Langmuir (06-07-2010)“…The binding interactions between aqueous copper (Cu2+) and lithium (Li+) ions and Langmuir monolayers and Langmuir−Blodgett (LB) multilayers have been…”
Get full text
Journal Article -
7
Sub-10 Ω Resistance Gold Films Prepared by Removal of Ligands from Thiol-Stabilized 6 nm Gold Nanoparticles
Published in Langmuir (16-03-2010)“…The optical and electrical properties of dodecanethiol-stabilized nanoparticles (6 nm diameter gold core) have been investigated over a range of film…”
Get full text
Journal Article -
8
Taking advantage of optical and electrical properties of organic molecules for gas sensing applications
Published in Thin solid films (01-08-2001)“…The discipline of molecular electronics has grown rapidly over the last 10 years and is driven by the promise of the enhanced applied physical properties of…”
Get full text
Journal Article Conference Proceeding -
9
synthesis and self-assembly of ABA amphiphilic block copolymers containing styrene and oligo(ethylene glycol) methyl ether methacrylate in dilute aqueous solutions: Elevated cloud point temperatures for thermoresponsive micelles
Published in Journal of polymer science. Part A, Polymer chemistry (01-12-2008)“…A series of ABA amphiphilic triblock copolymers possessing polystyrene (PS) central hydrophobic blocks, one group with "short" PS blocks (DP = 54-86) and one…”
Get full text
Journal Article -
10
Conductometric gas sensing studies of tert-butyl silicon-[bis ethyloxy]-phthalocyanine LB films
Published in Journal of materials science (01-02-2008)“…Ultrathin Langmuir-Blodgett film properties of tert-butyl silicon-[bis ethyloxy]-phthalocyanine (tbPcSi(OC 2 H 5 ) 2 ) have been studied and characterised…”
Get full text
Journal Article -
11
Physical Pendulum Experiments to Enhance the Understanding of Moments of Inertia and Simple Harmonic Motion
Published in Physics education (01-09-2012)“…This paper describes a set of experiments aimed at overcoming some of the difficulties experienced by students learning about the topics of moments of inertia…”
Get more information
Journal Article -
12
Langmuir and LB properties of two calix[4]resorcinarenes: Interactions with various analytes
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (15-05-2008)“…The ability of calixarene-based molecules to interact with amino acids has been the basis of many studies. The Langmuir and LB properties of two…”
Get full text
Journal Article Conference Proceeding -
13
Modeling the Kinetics of Gas Adsorption in Multilayer Porphyrin Films
Published in Langmuir (13-02-2007)“…A kinetic model is proposed to describe the diffusion and adsorption behavior of gas in multilayer films. Numerical solutions are attained on time scales of…”
Get full text
Journal Article -
14
J-Aggregation of a Water-Soluble Tetracationic Porphyrin in Mixed LB Films with a Calix[8]arene Carboxylic Acid Derivative
Published in Langmuir (27-03-2007)“…The molecular organization of a mixed film, containing a water-soluble tetracationic porphyrin (TMPyP) and a p-tert-butyl calix[8]arene octacarboxylic acid…”
Get full text
Journal Article -
15
Influence of Molecular Organization of Asymmetrically Substituted Porphyrins on Their Response to NO2 Gas
Published in Langmuir (01-10-2002)“…Two asymmetrically substituted porphyrins (5,15-bis(4-nitrophenyl)-10,20-bis(3,4-bis(2-ethylhexyloxy)phenyl)-21H,23H-porphine, CAH3;…”
Get full text
Journal Article -
16
Multilayers of 4-methylbenzenethiol functionalized gold nanoparticles fabricated by Langmuir–Blodgett and Langmuir–Schaefer deposition
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (20-04-2006)“…Langmuir films of gold nanoparticles functionalized by 4-methylbenzenethiol on a water subphase were studied. Multilayers on Si and glass substrates were…”
Get full text
Journal Article -
17
Conformational Changes of a Calix[8]arene Derivative at the Air−Water Interface
Published in The journal of physical chemistry. B (10-03-2005)“…The particular behavior of a p-tert-butyl calix[8]arene derivative (C8A) has been studied at the air−water interface using surface pressure−area isotherms,…”
Get full text
Journal Article -
18
Temperature effects on the electrical conductivity of thiol encapsulated gold nanoparticle thin films
Published in Journal of materials science. Materials in electronics (01-09-2007)“…Issue Title: Special Section: Organic Electronics; Guest Editor: Amlan J. Pal Presented in this paper are results demonstrating the irreversibility in…”
Get full text
Journal Article -
19
Pyroelectric Activity in Calix[8]arene/Amine Langmuir Blodgett Films: New Insights into the Mechanism of Polarization Variation with Temperature
Published in Langmuir (07-01-2003)“…We have carefully examined the attenuated total reflection Fourier transform infrared spectra of Langmuir−Blodgett (LB) alternate multilayers of two different…”
Get full text
Journal Article -
20
Surface plasmon resonance properties and gas response in porphyrin Langmuir–Blodgett films
Published in Colloids and surfaces. A, Physicochemical and engineering aspects (18-02-2002)“…Surface plasmon resonance (SPR) properties were measured for porphyrin Langmuir–Blodgett (LB) films and the response to NO 2 gas was investigated. The…”
Get full text
Journal Article