1
|
Gheorghe P, Petris A, Anton AM. Optical Limiting Properties of DNA Biopolymer Doped with Natural Dyes. Polymers (Basel) 2023; 16:96. [PMID: 38201761 PMCID: PMC10781093 DOI: 10.3390/polym16010096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 01/12/2024] Open
Abstract
The high-power lasers have important implications for present and future light-based technologies; therefore, the protection measures against their high-intensity radiation are extremely important. Currently, a great deal of interest is directed towards the development of new nonlinear optical materials for passive optical limiters, which are used to protect the human eye and sensitive optical and optoelectronic devices from laser-induced damage. Biopolymers doped with natural dyes are emerging as a new class of optical materials with interesting photosensitive properties. In this paper, the optical limiting capability of deoxyribonucleic acid bio-polymer functionalized with Turmeric natural dye has been demonstrated for the first time, to the best of our knowledge. The experimental investigation of the optical limit has been done by the Intensity-scan method in the NIR spectral domain at the important telecommunication wavelength of 1550 nm, using ultrashort laser pulses (~120 fs). Several optical properties of this natural dye are presented and discussed. The values of the optical transmittance in the linear regime, the saturation intensity of the nonlinear transmittance curves, and the coefficient of the nonlinear absorption have been determined. The influence of the DNA biopolymer and natural dye concentration on the optical limiting properties of the investigated biomaterials is reported and discussed. The photostability and thermal stability of the investigated solutions have also been evaluated by monitoring the temporal decay of the normalized absorption spectra under illumination with UVA light and heating, respectively. Our results evidence the positive influence of the DNA, which embeds Turmeric natural dye, on the optical limiting functionality itself and on the photostability and thermal stability of this novel material. The performed study reveals the potential of the investigated novel biomaterial for applications in nonlinear photonics, in particular in optical limiting.
Collapse
Affiliation(s)
- Petronela Gheorghe
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania;
| | - Adrian Petris
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania;
| | - Adina Mirela Anton
- National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Magurele, Romania;
- Faculty of Chemical Engineering and Biotechnologies, National University of Science and Technology Politehnica Bucharest, 1-7 Polizu Street, 011061 Bucharest, Romania
| |
Collapse
|
2
|
Vasiliu IC, Filip AV, Chilibon I, Elisa M, Bartha C, Kuncser V, Leca A, Boroica L, Sava BA, Trusca R, Eftimie M, Nicoara A. Effect of P 2O 5 Content on Luminescence of Reduced Graphene-Oxide-Doped ZnO-P 2O 5 Nano-Structured Films Prepared via the Sol-Gel Method. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6156. [PMID: 37763434 PMCID: PMC10532793 DOI: 10.3390/ma16186156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 08/31/2023] [Accepted: 09/06/2023] [Indexed: 09/29/2023]
Abstract
A convenient and low-cost sol-gel approach for the one-step synthesis of ZnO-P2O5-rGO nanostructures with tuned bandgap and fluorescence was investigated. The obtained hybrid nanostructures exploit the properties of zinc oxide, graphene oxide and phosphorous oxide as promising candidates for a wide range of optoelectronic applications. A predominant amorphous structure, ZnO-P2O5-rGO, containing ZnO nanorods was evidenced by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The estimated size of the ZnO nanorods in nanostructures with P2O5 was noticed to decrease when the P2O5/ZnO ratio was increased. The presence of ZnO, P2O5 and rGO was confirmed by Fourier-transform infrared spectroscopy (FTIR) and Raman investigation. P2O5 was noticed to tune the bandgap and the fluorescence emissions of the nanostructured films, as estimated by UV-Vis-NIR and fluorescence spectroscopy, respectively. The electrical measurements performed at room temperature showed that the main influence on the film's resistivity does not come from the 1% rGO doping but from the P2O5/ZnO ratio. It was found that a 10/90 molar ratio of P2O5/ZnO decreases the resistivity almost seven-fold compared with rGO-doped ZnO films.
Collapse
Affiliation(s)
- Ileana Cristina Vasiliu
- National Institute for Research and Development in Optoelectronics—INOE 2000, 409 Atomistilor Str., RO-077125 Magurele, Romania; (I.C.V.); (M.E.)
| | - Ana Violeta Filip
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor Str., RO-077125 Magurele, Romania; (L.B.); (B.A.S.)
| | - Irinela Chilibon
- National Institute for Research and Development in Optoelectronics—INOE 2000, 409 Atomistilor Str., RO-077125 Magurele, Romania; (I.C.V.); (M.E.)
| | - Mihail Elisa
- National Institute for Research and Development in Optoelectronics—INOE 2000, 409 Atomistilor Str., RO-077125 Magurele, Romania; (I.C.V.); (M.E.)
| | - Cristina Bartha
- National Institute of Materials Physics, 405 A Atomistilor Str., RO-077125 Magurele, Romania; (C.B.); (V.K.); (A.L.)
| | - Victor Kuncser
- National Institute of Materials Physics, 405 A Atomistilor Str., RO-077125 Magurele, Romania; (C.B.); (V.K.); (A.L.)
| | - Aurel Leca
- National Institute of Materials Physics, 405 A Atomistilor Str., RO-077125 Magurele, Romania; (C.B.); (V.K.); (A.L.)
| | - Lucica Boroica
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor Str., RO-077125 Magurele, Romania; (L.B.); (B.A.S.)
| | - Bogdan Alexandru Sava
- National Institute for Laser, Plasma and Radiation Physics (INFLPR), 409 Atomistilor Str., RO-077125 Magurele, Romania; (L.B.); (B.A.S.)
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology “Politehnica” of Bucharest, 1 Polizu Street, RO-011061 Bucharest, Romania; (M.E.); (A.N.)
| | - Roxana Trusca
- Faculty of Engineering in Foreign Languages, University of Science and Technology “Politehnica” of Bucharest, 313 Splaiul Independentei Str., RO-060042 Bucharest, Romania;
| | - Mihai Eftimie
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology “Politehnica” of Bucharest, 1 Polizu Street, RO-011061 Bucharest, Romania; (M.E.); (A.N.)
| | - Adrian Nicoara
- Department of Science and Engineering of Oxide Materials and Nanomaterials, National University of Science and Technology “Politehnica” of Bucharest, 1 Polizu Street, RO-011061 Bucharest, Romania; (M.E.); (A.N.)
| |
Collapse
|
3
|
Dengler S, Eberle B. Investigations on the Nonlinear Optical Properties of 0D, 1D, and 2D Boron Nitride Nanomaterials in the Visible Spectral Region. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1849. [PMID: 37368279 DOI: 10.3390/nano13121849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/02/2023] [Accepted: 06/08/2023] [Indexed: 06/28/2023]
Abstract
In recent years, boron nitride nanomaterials have attracted increasing attention due to their unique properties such as high temperature stability and high thermal conductivity. They are structurally analogous to carbon nanomaterials and can also be generated as zero-dimensional nanoparticles and fullerenes, one-dimensional nanotubes and nanoribbons, and two-dimensional nanosheets or platelets. In contrast to carbon-based nanomaterials, which have been extensively studied during recent years, the optical limiting properties of boron nitride nanomaterials have hardly been analysed so far. This work summarises a comprehensive study on the nonlinear optical response of dispersed boron nitride nanotubes, boron nitride nanoplatelets, and boron nitride nanoparticles using nanosecond laser pulses at 532 nm. Their optical limiting behaviour is characterised by means of nonlinear transmittance and scattered energy measurements and a beam profiling camera is used to analyse the beam characteristics of the transmitted laser radiation. Our results show that nonlinear scattering dominates the OL performance of all measured boron nitride nanomaterials. Boron nitride nanotubes show a large optical limiting effect, much stronger than the benchmark material, multi-walled carbon nanotubes, which makes them promising for laser protection applications.
Collapse
Affiliation(s)
- Stefanie Dengler
- Fraunhofer IOSB, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation, 76275 Ettlingen, Germany
| | - Bernd Eberle
- Fraunhofer IOSB, Fraunhofer Institute of Optronics, System Technologies and Image Exploitation, 76275 Ettlingen, Germany
| |
Collapse
|
4
|
Shamsabadipour A, Pourmadadi M, Rashedi H, Yazdian F, Navaei-Nigjeh M. Nanoemulsion carriers of porous γ-alumina modified by polyvinylpyrrolidone and carboxymethyl cellulose for pH-sensitive delivery of 5-fluorouracil. Int J Biol Macromol 2023; 233:123621. [PMID: 36773864 DOI: 10.1016/j.ijbiomac.2023.123621] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2022] [Revised: 01/28/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023]
Abstract
5-Fluorouracil (5-FU) is a cytotoxic drug with a low half-life. These features can cause some problems such as burst drug release and numerous side effects. In the present study, a pH-sensitive nanocomposite of polyvinylpyrrolidone (PVP)/carboxymethyl cellulose (CMC)/γ-alumina developed by using water in oil in water (W/O/W) double emulsion method. The fabricated emulsion has been employed as the 5-FU carrier to investigate its effects on drug half-life, side effects, drug loading efficiency (DLE), and drug entrapment efficiency (DEE). Analyzing the FTIR and XRD indicated the successful loading of 5-FU into the nanocarrier and affirmed the synthesized nanocomposite's chemical bonding and crystalline features. Furthermore, by using DLS and Zeta potential assessment, size and undersize distribution, as well as the stability of the drug-loaded nanocomposite were determined, which demonstrated the monodisperse and stable nanoparticles. Moreover, the nanocomposites with spherical shapes and homogeneous surfaces were shown in FE-SEM, which indicated good compatibility for the constituents of the nanocomposites. Moreover, by employing BET analysis the porosity has been investigated. Drug release pattern was studied, which indicated a controlled drug release behavior with above 96 h drug retention. Besides, the loading and entrapment efficiencies were obtained 44 % and 86 %, respectively. Furthermore, the curve fitting technique has been employed and the predominant release mechanism has been determined to evaluate the best-fitted kinetic models. MTT assay and flow cytometry assessment has been carried out to investigate the cytotoxic effects of the fabricated drug-loaded nanocomposite on MCF-7 and normal cells. The results showed enhanced cytotoxicity and late apoptosis for the PVP/CMC/γ-alumina/5-FU. Based on the MTT assay outcomes on normal cell lines (L929), which indicated above 90 % cell viability, the biocompatibility and biosafety of the synthesized nanocarrier have been confirmed. Moreover, due to the porosity of the PVP/CMC/γ-alumina, this nanocarrier can exploit from high specific surface area and be more sensitive to environmental conditions such as pH. These outcomes propose that the novel pH-sensitive PVP/CMC/γ-alumina nanocomposite can be a potential candidate for drug delivery applications, especially for cancer therapy.
Collapse
Affiliation(s)
- Amin Shamsabadipour
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Mehrab Pourmadadi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Hamid Rashedi
- Department of Biotechnology, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran.
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Science and Technologies, University of Tehran, Tehran, Iran.
| | - Mona Navaei-Nigjeh
- Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| |
Collapse
|
5
|
Editorial for “Properties and Applications of Graphene and Its Derivatives”. NANOMATERIALS 2022; 12:nano12040602. [PMID: 35214931 PMCID: PMC8875504 DOI: 10.3390/nano12040602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 12/13/2021] [Indexed: 11/16/2022]
|
6
|
An Overview of Functionalized Graphene Nanomaterials for Advanced Applications. NANOMATERIALS 2021; 11:nano11071717. [PMID: 34209928 PMCID: PMC8308136 DOI: 10.3390/nano11071717] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/22/2021] [Accepted: 06/25/2021] [Indexed: 12/11/2022]
Abstract
Interest in the development of graphene-based materials for advanced applications is growing, because of the unique features of such nanomaterials and, above all, of their outstanding versatility, which enables several functionalization pathways that lead to materials with extremely tunable properties and architectures. This review is focused on the careful examination of relationships between synthetic approaches currently used to derivatize graphene, main properties achieved, and target applications proposed. Use of functionalized graphene nanomaterials in six engineering areas (materials with enhanced mechanical and thermal performance, energy, sensors, biomedical, water treatment, and catalysis) was critically reviewed, pointing out the latest advances and potential challenges associated with the application of such materials, with a major focus on the effect that the physicochemical features imparted by functionalization routes exert on the achievement of ultimate properties capable of satisfying or even improving the current demand in each field. Finally, current limitations in terms of basic scientific knowledge and nanotechnology were highlighted, along with the potential future directions towards the full exploitation of such fascinating nanomaterials.
Collapse
|
7
|
Fabrication of Carbon-Like, π-Conjugated Organic Layer on a Nano-Porous Silica Surface. NANOMATERIALS 2020; 10:nano10091882. [PMID: 32962263 PMCID: PMC7558701 DOI: 10.3390/nano10091882] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 09/15/2020] [Accepted: 09/18/2020] [Indexed: 12/28/2022]
Abstract
This paper presents a new type of black organic material-porous silica composite providing an extremely highly selective adsorption surface. This black composite was prepared by lamination on nano-sized pores with a carbon-like, π-extended structure, which can be converted via the on-site polymerization of 1,5-dihydroxynaphthalene with a triazinane derivative and a thermally induced condensation reaction with denitrification. This bottom-up fabrication method on porous materials had the great advantage of maintaining the pore characteristics of a raw porous material, but also the resultant black surface exhibited an extremely high molecular-shape selectivity; for example, that for trans- and cis-stilbenes reached 14.0 with the black layer-laminated porous silica, whereas it was below 1.2 with simple hydrophobized silica.
Collapse
|