The effects of multicharged ion irradiation on a polycarbonate surface

Srinadhu, E. S.; Kulkarni, Dhruva; Field, Daniel A.; Harriss, J.E.; Sosolik, C. E.

doi:10.1080/10420150.2018.1552958

Cited by 12 publications

(3 citation statements)

References 51 publications

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“…The peak corresponding to carbonate groups (O–C(O)–O) at 290.0 eV and peaks corresponding to the π–π* shake-up of TA at around 291.6 eV are present. 39,40 After the addition of Cu 2+ , the binding energy of the OC–O peak shifted from 287.8 eV to 288.2 eV and the binding energy of the O–H peak from 530.9 eV to the lower binding energy of 530.3 eV (Fig. 2b).…”

Section: Resultsmentioning

confidence: 96%

“…Then, the samples were immersed in 2.5% aqueous glutaraldehyde fixing solution for 60 min to fix the platelets which adhered to the surface. Finally, water was removed by sequentially immersing the sample for 15 min each in aqueous ethanol solutions of various concentrations (30,40,50,60,70,80,90, and 100 vol%) before examination by SEM.…”

Section: Hemocompatibility Testmentioning

confidence: 99%

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Facile fabrication of biodegradable endothelium-mimicking coatings on bioabsorbable zinc-alloy stents by one-step electrophoretic deposition

et al. 2022

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Section: Resultsmentioning

confidence: 96%

Section: Hemocompatibility Testmentioning

confidence: 99%

Facile fabrication of biodegradable endothelium-mimicking coatings on bioabsorbable zinc-alloy stents by one-step electrophoretic deposition

et al. 2022

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“…These results are in agreement with the previous characterization of PEEK foils by XPS. [ 43 ] The relative intensities of the fitted singlets correspond to the elemental abundance of the atomic species ( m ), which can be directly correlated to the atomic abundance per repeated monomer unit [i.e., an intense band for CC ( m = 12 C), CC (2 C), CO (2 C), and CO (1 C)].…”

Section: Resultsmentioning

confidence: 99%

Understanding the Relation between Pulse Duration and Topography Evolution of Polyether Ether Ketones Textures by Ultrashort Infrared Laser Interference Patterning

et al. 2022

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Since it entered the market in the early 1980s, the deployment of polyaryl ether ketones has gained prominence in a plethora of fields linked to advanced materials design as direct substitutes for metal and ceramic counterparts. [1][2][3][4] For example, in the automotive and aeronautics industries, these materials are being implemented in connectors, seals, and insulators for pumps, which significantly reduces the final weight of the products. [5] Furthermore, in the biomedical field, they have been used in the manufacture of surgical instruments and, more recently, in tissue engineering scaffolds and prostheses. [6][7][8] Particularly, polyether ether ketone (PEEK) is increasingly used in dental implants, spine tumor applications, and reconstruction of the craniomaxillofacial complex. [9,10] The chemical structure of this thermoplastic polymer provides adequate chemical resistance, mechanical properties similar to those of human bone, and nonaccumulation and bioinertness features. In addition, this polymer is susceptible to being postsynthesis superficially modified to give rise to novel functionalities or to improve its inherent ones. For instance, surface treatments allow improving characteristics such as friction, lubrication, wettability, cell infiltration, or osseointegration. [11,12] An interesting approach to achieving topographical modifications of material while minimizing or even avoiding chemical changes is the utilization of laser micro/nanoprocessing techniques. Several laser-based techniques have been used to manufacture 1D and 2D structures on PEEK. Among them, direct laser

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One‐Step Prepared Water‐Resistant Organic–Inorganic‐Hybrid Perovskite Quantum Dots with Zn–Oxygen Vacancies for Attempts at Nitrogen Fixation

Gao

Tan

et al. 2021

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Applying organic–inorganic hybrid perovskite quantum dots (PQDs) to photocatalytic nitrogen fixation is hindered long‐term by the inherent instability in water and tedious preparations. Here, to realize PQD‐catalyzed photocatalytic N2 reduction reaction (NRR), water‐resistant PQDs are simply prepared through one‐step electrospray synthesis in microseconds. During the fast electrospray, PQDs of Zn/PbO‐doped methylammonium lead bromide (Zn/PbO/PC–Zn/MAPbBr3, MA: CH3NH3) are prepared and part‐encapsulated by polycarbonate. The synthesis maintains good water resistance, whose restriction on charge transport is overcome skillfully. Simultaneously, substitution of Zn with Pb on water‐resistant surface is also achieved, which fabricates new Zn–oxygen vacancies (Zn‐OVs) with Zn/PbO–Zn/MAPbBr3 type I heterojunction. This facilitates efficient electron transfer from internal heterojunction interface of Zn/MAPbBr3 PQDs to the surface of Zn/PbO. Demonstrated by theoretical calculations, Zn‐OVs promote chemisorption and polarization of N2. In addition, s‐electrons in exposed Zn become active due to changes of electron filling of Zn orbitals under OVs’ co‐doping. Thus, photocatalytic N2 reduction reaction catalyzed by organic–inorganic hybrid PQDs is first achieved in aqueous phase without sacrificial agents being added. This initiates possibilities for photocatalytic applications of organic–inorganic hybrid PQDs in aqueous phase.

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The effects of multicharged ion irradiation on a polycarbonate surface

Cited by 12 publications

References 51 publications

Facile fabrication of biodegradable endothelium-mimicking coatings on bioabsorbable zinc-alloy stents by one-step electrophoretic deposition

Facile fabrication of biodegradable endothelium-mimicking coatings on bioabsorbable zinc-alloy stents by one-step electrophoretic deposition

Understanding the Relation between Pulse Duration and Topography Evolution of Polyether Ether Ketones Textures by Ultrashort Infrared Laser Interference Patterning

One‐Step Prepared Water‐Resistant Organic–Inorganic‐Hybrid Perovskite Quantum Dots with Zn–Oxygen Vacancies for Attempts at Nitrogen Fixation

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