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Results: 21
Collective Mid-Infrared Vibrations in Surface-Enhanced Raman Scattering.
Niclas S Mueller, Rakesh Arul, Lukas A Jakob, Matthew Oliver Blunt, Tamás Földes, Edina Rosta, Jeremy J Baumberg
Sep 29, 2022
Picocavities
Jeremy J Baumberg
Aug 06, 2022
Picocavities are sub-nanometer-scale optical cavities recently found to trap light, which are formed by single-atom defects on metallic facets. Here, we develop simple picocavity models and discuss what is known and unknown...
Characterization of Heterogeneity and Dynamics of Lysis of Single Bacillus subtilis Cells upon Prophage Induction During Spore Germination, Outgrowth, and Vegetative Growth Using Raman Tweezers and Live-Cell Phase-Contrast Microscopy.
One-step fabrication of hollow-channel gold nanoflowers with excellent catalytic performance and large single-particle SERS activity.
Sunjie Ye, Felix Benz, May C Wheeler, Joseph Oram, Jeremy J Baumberg, Oscar Cespedes, Hugo K Christenson, Patricia Louise Coletta, Lars JC Jeuken, Alexander F Markham, Kevin Critchley, Stephen D Evans
Oct 10, 2018
Hollow metallic nanostructures have shown potential in various applications including catalysis, drug delivery and phototherapy, owing to their large surface areas, reduced net density, and unique optical properties. In this...
Measurement of the Raman spectra and hygroscopicity of four pharmaceutical aerosols as they travel from pressurised metered dose inhalers (pMDI) to a model lung.
Particle inhalation is an effective and rapid delivery method for a variety of pharmaceuticals, particularly bronchodilation drugs used for treating asthma and COPD. Conditions of relative humidity and temperature inside the...
Observing Single Molecules Complexing with Cucurbit[7]uril through Nanogap Surface-Enhanced Raman Spectroscopy.
Daniel O Sigle, Setu Kasera, Lars O Herrmann, Aniello Palma, Bart de Nijs, Felix Benz, Sumeet Mahajan, Jeremy J Baumberg, Oren A Scherman
Jan 18, 2016
Raman micro-spectroscopy for accurate identification of primary human bronchial epithelial cells.
Jakub M Surmacki, Benjamin J Woodhams, Alexandria Haslehurst, Bruce AJ Ponder, Sarah E Bohndiek
Nov 05, 2018
Live cell Raman micro-spectroscopy is emerging as a promising bioanalytical technique for label-free discrimination of a range of different cell types (e.g. cancer cells and fibroblasts) and behaviors (e.g. apoptosis). The aim...
Watching individual molecules flex within lipid membranes using SERS.
Richard W Taylor, Felix Benz, Daniel O Sigle, Richard W Bowman, Peng Bao, Johannes S Roth, George R Heath, Stephen D Evans, Jeremy J Baumberg
Sep 04, 2014
Monitoring Early-Stage Nanoparticle Assembly in Microdroplets by Optical Spectroscopy and SERS.
Andrew R Salmon, Ruben Esteban, Richard W Taylor, James T Hugall, Clive A Smith, Graeme Whyte, Oren A Scherman, Javier Aizpurua, Chris Abell, Jeremy J Baumberg
Jan 28, 2016
Intracellular SERS nanoprobes for distinction of different neuronal cell types.
Distinction between closely related and morphologically similar cells is difficult by conventional methods especially without labeling. Using nuclear-targeted gold nanoparticles (AuNPs) as intracellular probes we demonstrate the...
Medieval women's early involvement in manuscript production suggested by lapis lazuli identification in dental calculus.
A Radini, M Tromp, A Beach, E Tong, C Speller, M McCormick, JV Dudgeon, MJ Collins, F Rühli, R Kröger, C Warinner
Feb 25, 2019
During the European Middle Ages, the opening of long-distance Asian trade routes introduced exotic goods, including ultramarine, a brilliant blue pigment produced from lapis lazuli stone mined only in Afghanistan. Rare and as...
Inhibiting Analyte Theft in Surface-Enhanced Raman Spectroscopy Substrates
Bart de Nijs, Cloudy Carnegie, István Szabó, David-Benjamin Grys, Rohit Chikkaraddy, Marlous Kamp, Steven J Barrow, Charlie A Readman, Marie-Elena Kleemann, Oren A Scherman, Edina Rosta, Jeremy J Baumberg
Oct 03, 2019
SERS THC drug detection Nanoparticles Self-assembly SPICE synthetic cannabinoids tetrahydrocannabinol Bridged-Ring Compounds Dronabinol gold Imidazoles Indoles Limit of Detection Metal Nanoparticles Molecular Dynamics Simulation Paraquat principal component analysis Psychotropic Drugs Reproducibility of Results Spectrum Analysis Raman
1064 nm Dispersive Raman Microspectroscopy and Optical Trapping of Pharmaceutical Aerosols.
Raman spectroscopy is a powerful tool for investigating chemical composition. Coupling Raman spectroscopy with optical microscopy (Raman microspectroscopy) and optical trapping (Raman tweezers) allows microscopic length scales...
Demonstrating photoluminescence from Au is electronic inelastic light scattering of a plasmonic metal
DNA origami based assembly of gold nanoparticle dimers for surface-enhanced Raman scattering.
Vivek V Thacker, Lars O Herrmann, Daniel O Sigle, Tao ZHANG, Tim Liedl, Jeremy J Baumberg, Ulrich F Keyser
Jan 29, 2020
Plasmonic sensors are extremely promising candidates for label-free single-molecule analysis but require exquisite control over the physical arrangement of metallic nanostructures. Here we employ self-assembly based on the DNA...
Measuring the effects of fractionated radiation therapy in a 3D prostate cancer model system using SERS nanosensors.
Victoria L Camus, Grant D Stewart, William H Nailon, Duncan B McLaren, Colin J Campbell
Sep 05, 2016
Targeted SERS nanosensors measure physicochemical gradients and free energy changes in live 3D tumor spheroids.
Lauren E Jamieson, Victoria L Camus, Pierre O Bagnaninchi, Kate M Fisher, Grant D Stewart, William H Nailon, Duncan B McLaren, David J Harrison, Colin J Campbell
Oct 26, 2016
Label-free monitoring of tissue biochemistry following traumatic brain injury using Raman spectroscopy.
Traumatic brain injury (TBI) constitutes a major cause of death and long-term disability. At present, we lack methods to non-invasively track tissue biochemistry and hence select appropriate interventions for patients. We...