Bacterially Antiadhesive, Optically Transparent Surfaces Inspired from Rice Leaves

Because of the growing prevalence of antimicrobial resistance strains, there is an increasing need to develop material surfaces that prevent bacterial attachment and contamination in the absence of antibiotic agents. Herein, we present bacterial antiadhesive materials inspired from rice leaves. “Rice leaf-like surfaces” (RLLS) were fabricated by a templateless, self-masking reactive-ion etching approach. Bacterial attachment on RLLS was characterized under both static and dynamic conditions using Gram-negative <i>Escherichia coli</i> O157:H7 and Gram-positive <i>Staphylococcus aureus</i>. RLLS surfaces showed exceptional bacterial antiadhesion properties with a >99.9% adhesion inhibition efficiency. Furthermore, the optical properties of RLLS were investigated using UV–vis–NIR spectrophotometry. In contrast to most other bacterial antiadhesive surfaces, RLLS demonstrated optical-grade transparency (i.e., ≥92% transmission). We anticipate that the combination of bacterial antiadhesion efficiency, optical grade transparency, and the convenient single-step method of preparation makes RLLS a very attractive candidate for the surfaces of biosensors; endoscopes; and microfluidic, bio-optical, lab-on-a-chip, and touchscreen devices

Bacterially Antiadhesive, Optically Transparent Surfaces Inspired from Rice Leaves

Because of the growing prevalence of antimicrobial resistance strains, there is an increasing need to develop material surfaces that prevent bacterial attachment and contamination in the absence of antibiotic agents. Herein, we present bacterial antiadhesive materials inspired from rice leaves. “Rice leaf-like surfaces” (RLLS) were fabricated by a templateless, self-masking reactive-ion etching approach. Bacterial attachment on RLLS was characterized under both static and dynamic conditions using Gram-negative <i>Escherichia coli</i> O157:H7 and Gram-positive <i>Staphylococcus aureus</i>. RLLS surfaces showed exceptional bacterial antiadhesion properties with a >99.9% adhesion inhibition efficiency. Furthermore, the optical properties of RLLS were investigated using UV–vis–NIR spectrophotometry. In contrast to most other bacterial antiadhesive surfaces, RLLS demonstrated optical-grade transparency (i.e., ≥92% transmission). We anticipate that the combination of bacterial antiadhesion efficiency, optical grade transparency, and the convenient single-step method of preparation makes RLLS a very attractive candidate for the surfaces of biosensors; endoscopes; and microfluidic, bio-optical, lab-on-a-chip, and touchscreen devices

Bacterially Antiadhesive, Optically Transparent Surfaces Inspired from Rice Leaves

Because of the growing prevalence of antimicrobial resistance strains, there is an increasing need to develop material surfaces that prevent bacterial attachment and contamination in the absence of antibiotic agents. Herein, we present bacterial antiadhesive materials inspired from rice leaves. “Rice leaf-like surfaces” (RLLS) were fabricated by a templateless, self-masking reactive-ion etching approach. Bacterial attachment on RLLS was characterized under both static and dynamic conditions using Gram-negative <i>Escherichia coli</i> O157:H7 and Gram-positive <i>Staphylococcus aureus</i>. RLLS surfaces showed exceptional bacterial antiadhesion properties with a >99.9% adhesion inhibition efficiency. Furthermore, the optical properties of RLLS were investigated using UV–vis–NIR spectrophotometry. In contrast to most other bacterial antiadhesive surfaces, RLLS demonstrated optical-grade transparency (i.e., ≥92% transmission). We anticipate that the combination of bacterial antiadhesion efficiency, optical grade transparency, and the convenient single-step method of preparation makes RLLS a very attractive candidate for the surfaces of biosensors; endoscopes; and microfluidic, bio-optical, lab-on-a-chip, and touchscreen devices

Additional file 1 of Boosting nuclear-targeted photothermal-chemotherapy by NIR-responsive hybrid membrane camouflaged nanotherapeutics

Additional file 1: Figure S1. Western blot analysis of different membrane protein for characterizing the presence of CD36 and CD81 in HepG2 membrane, Raw 264.7 membrane and the hybrid membrane vesicles. Figure S2. Fluorescent images of PB@D@M NPs incubated with VE cells, HeLa cells and HepG2 cells for 6 h. Scale bar: 50 μm. Figure S3. Fluorescent images of Raw 264.7 cells incubated with PB@D, PB@D@HM and PB@D@M NPs for 6 h. Scale bar: 50 μm. Figure S4. PB content was measured by ICP in HepG2 cells incubated with PB@HM, PB@RM, PB@M and PB@N@M NPs with/without NIR irradiation. ****P < 0.0001. Table S1. Tentative assignments of Raman fingerprints in the SERS spectra collected from the HepG2 cells. Figure S5. Photographic and SERS images based on the peak of 2152 cm-1 of tumor isolated from the mice injected with PB@DN@M NPs for 24 h. Scale bar: 100 μm. Figure S6. Representative images of H&E-stained tumors from the different treatment groups. Scale bar: 100 μm. Figure S7. H&E staining of major organs from different groups. Scale bar: 100 μm

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HD-GLIM imaging of live neurons

Supplementary document for SERS-based long-term mitochondrial pH monitoring during differentiation of human induced pluripotent stem cells to neural progenitor cells - 6920848.pdf

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Visualization 1: Dynamic phase measurement based on spatial carrier-frequency phase-shifting method

The phase variation of a droplet evaporation process Originally published in Optics Express on 27 June 2016 (oe-24-13-13744

Supplementary document for Fresnel incoherent compressive holography toward 3D videography via dual-channel simultaneous phase-shifting interferometry - 6894928.pdf

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Visualization 3.mp4

Visualization

Visualization 2.mp4

Visualization