Shave, Molly K Xu, Zhou Raman, Vishnu Kalasin, Surachate Tuominen, Mark T Forbes, Neil S Santore, Maria M
Published in
ACS applied materials & interfaces
Bacterial swimming in flow near surfaces is critical to the spread of infection and device colonization. Understanding how material properties affect flagella- and motility-dependent bacteria-surface interactions is a first step in designing new medical devices that mitigate the risk of infection. We report that, on biomaterial coatings such as pol...
Darienzo, Richard E Wang, Jingming Chen, Olivia Sullivan, Maurinne Mironava, Tatsiana Kim, Hyungjin Tannenbaum, Rina
Published in
ACS applied nano materials
The use of surface-enhanced Raman spectroscopy (SERS) to delineate between the breast epithelial cell lines MCF10A, SK-BR-3, and MDA-MB-231 is explored utilizing varied morphologies of gold nanoparticles. The nanoparticles studied had spherical, star-like, and quasi-fractal (nanocaltrop) morphologies and possessed varying degrees of surface inhomog...
Chen, Caiqin Chen, Dezhi Xie, Shasha Quan, Hongying Luo, Xubiao Guo, Lin
Published in
ACS applied materials & interfaces
Herein, we studied the adsorption behaviors of organic micropollutants, such as anticonvulsant carbamazepine (CBZ) and antibiotic tetracycline hydrochloride (TC), on zirconium metal-organic framework UiO-66 in water. The maximum adsorption capacities of CBZ and TC on the UiO-66 were 37.2 and 23.1 mg·g-1 at 25 °C, respectively. The adsorption isothe...
O'Neill, Kelly C Lee, Young Jin
Published in
Journal of forensic sciences
The ability to determine the age of fingerprints would be immeasurably beneficial in criminal investigations. We explore the possibility of determining the age of fingerprints by analyzing various compounds as they diffuse from the ridges to the valleys of fingerprints using matrix-assisted laser desorption/ionization mass spectrometry imaging. The...
Cui, Xin Shi, Chen Zhang, Shuo Xie, Lei Liu, Jing Jiang, Dazhi Zeng, Hongbo
Published in
Chemistry, an Asian journal
In this work, a bubble probe atomic force microscope (AFM) was employed to quantify the interactions between two air bubbles and between an air bubble and an octadecyltrichlorosilane (OTS)-hydrophobized mica under various aqueous conditions. The key parameters (e.g., surface potentials, decay length of hydrophobic attraction) were obtained by analy...
Azéma, Emilien Estrada, Nicolas Preechawuttipong, Itthichai Delenne, Jean-Yves Radjai, Farhang
Published in
EPJ Web of Conferences
In this paper, we explore numerically the effect of particle shape on the mechanical behavior of sheared granular packings. In the framework of the Contact Dynamic (CD)Method, we model angular shape as irregular polyhedral particles, non-convex shape as regular aggregates of four overlapping spheres, elongated shape as rounded cap rectangles and pl...
Schulz, Christian Hecht, Jochen Krüger-Genge, Anne Kratz, Karl Jung, Friedrich Lendlein, Andreas
Published in
Macromolecular bioscience
Common strategies for biofunctionalization of surfaces comprise the immobilization of bioactive molecules used as cell-binding ligands for cell recruitment. Besides covalent binding, multivalent noncovalent physical forces between substrate and ligand are an alternative way to equip surfaces with biomacromolecules. In this study, polymer binding li...
Schein, Perry Kang, Pilgyu O'Dell, Dakota Erickson, David
Published in
Nano letters
Direct measurements of particle-surface interactions are important for characterizing the stability and behavior of colloidal and nanoparticle suspensions. Current techniques are limited in their ability to measure pico-Newton scale interaction forces on submicrometer particles due to signal detection limits and thermal noise. Here we present a new...
Gao, Guanbin Zhang, Mingxi Lu, Pei Guo, Guanlun Wang, Dong Sun, Taolei
Published in
Angewandte Chemie (International ed. in English)
Molecular chirality is introduced at liquid-solid interfaces. A ring-like aggregation of amyloid Aβ(1-40) on N-isobutyryl-L-cysteine (L-NIBC)-modified gold substrate occurs at low Aβ(1-40) concentration, while D-NIBC modification only results in rod-like aggregation. Utilizing atomic force microscope controlled tip-enhanced Raman scattering, we dir...
Ratnaswamy, Gayathri Hair, Alison Li, Gary Thirumangalathu, Renuka Nashed-Samuel, Yasser Brych, Lejla Dharmavaram, Vasumathi Wen, Zai-Qing Fujimori, Kiyoshi Jing, Wendy
...
Published in
Journal of pharmaceutical sciences
Visible particles were unexpectedly observed in a neutral-pH placebo formulation stored in glass vials but were not observed in the same formulation composition that contained protein. The particles were identified as silica gel (SiO2 ) and polysorbate 20, suggesting dissolution of the glass vial. Time course studies were performed to assess the ef...
