Uncoupling bacterial attachment on and detachment from polydimethylsiloxane surfaces through empirical and simulation studies

Advanced antifouling and antibacterial hydrogels enabled by controlled thermo-responses of a biocompatible polymer composite

“…Single cell (video 2&3) and bacterial adhesion (video 4&5) force with surfaces were analyzed following the previously reported [44][45][46]. The Flex Bio-AFM and a digital pressure controller (Cytosurge, Switzerland) were used, combined with an AxioObserver Z1 inverted microscope (Carl Zeiss, Germany) to ensure precise control throughout the analysis.…”

Robust Antibacterial Activity of Xanthan-Gum-Stabilized and Patterned CeO2–x–TiO2 Antifog Films

“…coli and S. aureus for 1 and 5 min were obtained by atomic force microscopy (AFM) in Figure a–d, investigating the effect of TiO 2 (S5) and 75 mol % CeO 2– x –TiO 2 (S7) on adhesion force and elastic properties of bacteria. ,, The elastic moduli estimated from the force spectroscopy curves are listed in Table . The force spectroscopy revealed that the cell wall of both E.…”

“…The force spectroscopy curves of the S5 and S7 films after interacting with E. coli and S. aureus for 1 and 5 min were obtained by atomic force microscopy (AFM) in Figure 9a−d, investigating the effect of TiO 2 (S5) and 75 mol % CeO 2−x − TiO 2 (S7) on adhesion force and elastic properties of bacteria. 6,37,38 The elastic moduli estimated from the force spectroscopy curves are listed in Table 1. The force spectroscopy revealed that the cell wall of both E. coli and S. aureus became less rigid, and their elastic moduli, respectively, decreased by about 13.7 and 29.6% after 5 min interaction with S7 films.…”

“…The interaction of E. coli on the S7 film surface was observed using a scanning electron microscope (SEM, Hitachi, S-4800). Bacteria were allowed to adhere to the S7 samples with 37,41,42 A Flex Bio-AFM and a digital pressure controller (Cytosurge, Switzerland) were applied alongside an AxioObserver Z1 inverted microscope (Carl Zeiss, Germany) to guarantee precise control. Pyramidal hollow cantilevers (Nanopipette, Cytosurge, Switzerland) of a nominal spring constant of 2 N•m −1 and an aperture of 300 nm at the distal end were exploited to quantify the adhesion forces of the bacterium toward different samples.…”

Machine learning ensures rapid and precise selection of gold sea-urchin-like nanoparticles for desired light-to-plasmon resonance

“…Global reliance on fossil fuels has led to an energy crisis and urges a sustainable energy strategy, especially solar-to-hydrogen production, thus stimulating substantial efforts in exploring nanoscale materials [1][2][3][4][5][6][7] . In the nano-dimension, materials can alter their characteristics 8 , such as, the reactivity to light, enabling electron polarization on the metal surface, or facilitating the electron excitation to the conduction band [9][10][11][12][13][14][15][16] . Thereby, nano metals and metal-oxides display prominent functions, especially the light-toplasmon resonance, which can be utilized to optimize the development of solar cells, optical sensors, and gas sensors [17][18][19][20][21] .…”