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Journal articles on the topic 'RGD nanomaterials'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Zhao, C. H., X. P. Zhang, and L. Zhang. "RGD peptide functionalized graphene oxide: a bioactive surface for cell-material interactions." Digest Journal of Nanomaterials and Biostructures 17, no. 3 (2022): 989–97. http://dx.doi.org/10.15251/djnb.2022.173.989.

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Recently, functionalized graphene-based nanomaterials have gained tremendous attention in biomedical field owing to their biocompatibility, surface functionalizability and their unique mechanical, electronic, and optical properties. Herein, we report a facile one step modification of graphene oxide by RGD peptide, which is known to improve the tissue– material contact by highly specific binding to cellular membrane receptors known as integrins. A detailed structural and morphological characterization of the obtained RGD functionalized graphene oxide (GO-RGD) was performed. The synthesized bioa

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2

Qu, Xiaochao, Xiaoxiao Li, Jingning Liang, Yanran Wang, Muhan Liu, and Jimin Liang. "Micro-CT Imaging of RGD-Conjugated Gold Nanorods Targeting TumorIn Vivo." Journal of Nanomaterials 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/8368154.

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Gold nanomaterials as computed tomography (CT) contrast agents at lower X-ray dosage to get a higher contrast have advantages of longer imaging time and lower toxic side effects compared to current contrast agents. As a receptor for Cyclo (Arg-Gly-Asp-D-Phe-Lys) (RGD) peptide, integrinαvβ3is overexpressed on some tumor cells and tumor neovasculature. In this paper, we conjugated the RGD peptide on the surface of gold nanorods (AuNRs), designated as RGD-AuNRs, a promising candidate in applications such as tumor targeting and imaging capability for micro-CT imaging. Integrinαvβ3-positive U87 cel

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3

Li, Jianxia, Leilei Zheng, Lin Zeng, Yan Zhang, Lin Jiang, and Jinlin Song. "RGD Peptide-Grafted Graphene Oxide as a New Biomimetic Nanointerface for Impedance-Monitoring Cell Behaviors." Journal of Nanomaterials 2016 (2016): 1–12. http://dx.doi.org/10.1155/2016/2828512.

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A new biomimetic nanointerface was constructed by facile grafting the bioactive arginylglycylaspartic acid (RGD) peptide on the graphene oxide (GO) surface through carbodiimide and N-hydroxysuccinimide coupling amidation reaction. The formed RGD-GO nanocomposites own unique two-dimensional structure and desirable electrochemical performance. The linked RGD peptides could improve GO’s biocompatibility and support the adhesion and proliferation of human periodontal ligament fibroblasts (HPLFs) on RGD-GO biofilm surface. Furthermore the biologically active RGD-GO nanocomposites were demonstrated

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4

Zhang, Ru, Shang Luo, Lin-Kun Hao, et al. "Preparation and Properties of Thrombus-Targeted Urokinase/Multi-Walled Carbon Nanotubes (MWCNTs)-Chitosan (CS)-RGD Drug Delivery System." Journal of Biomedical Nanotechnology 17, no. 9 (2021): 1711–25. http://dx.doi.org/10.1166/jbn.2021.3113.

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In order to improve the therapeutic effect, prolong the action time and reduce the side effects of the first generation thrombolytic drug urokinase (UK), a novel UK/multi-walled carbon nanotubes (MWCNTs)-chitosan (CS)-arginine-glycine-aspartic acid (Arg-Gly-Asp) (RGD) drug delivery system was synthesized by chemical bonding/non covalent bond modification/ultrasonic dispersion. The results showed that the diameter of the UK/MWCNTs-CS-RGD drug delivery system was about 30–40 nm, there was a layer of UK was attached to the surface of the tube wall, and the distribution was relatively uniform. The

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Wu, Xiaoxia, Yan Peng, Xiaomei Duan, Lingyan Yang, Jinze Lan, and Fu Wang. "Homologous Gold Nanoparticles and Nanoclusters Composites with Enhanced Surface Raman Scattering and Metal Fluorescence for Cancer Imaging." Nanomaterials 8, no. 10 (2018): 819. http://dx.doi.org/10.3390/nano8100819.

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A large number of deaths from cancer can be attributed to the lack of effective early-stage diagnostic techniques. Thus, accurate and effective early diagnosis is a major research goal worldwide. With the unique phenomenon of localized surface plasmon resonance (LSPR), plasmonic nanomaterials have attracted considerable attention for applications in surface-enhanced Raman scattering (SERS) and metal-enhanced fluorescence (MEF). Both SERS and MEF are ultra-sensitive methods for the detection and identification of early tumor at molecular level. To combine the merits of the fast and accurate ima

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Yin, Bohan, Hongrong Yang, and Mo Yang. "Integrating Soft Hydrogel with Nanostructures Reinforces Stem Cell Adhesion and Differentiation." Journal of Composites Science 6, no. 1 (2022): 19. http://dx.doi.org/10.3390/jcs6010019.

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Biophysical cues can regulate stem cell behaviours and have been considered as critical parameters of synthetic biomaterials for tissue engineering. In particular, hydrogels have been utilized as promising biomimetic and biocompatible materials to emulate the microenvironment. Therefore, well-defined mechanical properties of a hydrogel are important to direct desirable phenotypes of cells. Yet, limited research pays attention to engineering soft hydrogel with improved cell adhesive property, which is crucial for stem cell differentiation. Herein, we introduce silica nanoparticles (SiO2 NPs) on

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7

Afami, Marina E., Ikhlas El Karim, Imad About, Anna D. Krasnodembskaya, Garry Laverty, and Fionnuala T. Lundy. "Multicomponent Peptide Hydrogels as an Innovative Platform for Cell-Based Tissue Engineering in the Dental Pulp." Pharmaceutics 13, no. 10 (2021): 1575. http://dx.doi.org/10.3390/pharmaceutics13101575.

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In light of the increasing levels of antibiotic resistance, nanomaterials and novel biologics are urgently required to manage bacterial infections. To date, commercially available self-assembling peptide hydrogels have not been studied extensively for their ability to inhibit micro-organisms relevant to tissue engineering sites such as dental root canals. In this work, we assess the biocompatibility of dental pulp stem/stromal cells with commercially available multicomponent peptide hydrogels. We also determine the effects of dental pulp stem/stromal cell (DPSC) culture in hydrogels on growth

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8

Manferdini, C., E. Gabusi, P. Dolzani, et al. "ULTRASOUND COUNTERACTS INFLAMMATION AND INDUCES CHONDROGENIC DIFFERENTIATION OF ASCS IN 3D PIEZOELECTRIC HYDROGELS." Orthopaedic Proceedings 106-B, SUPP_2 (2024): 136. http://dx.doi.org/10.1302/1358-992x.2024.2.136.

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In cartilage tissue engineering (TE),new solutions are needed to effectively drive chondrogenic differentiation of mesenchymal stromal cells in both normal and inflammatory milieu. Ultrasound waves represent an interesting tool to facilitate chondrogenesis. In particular, low intensity pulsed ultrasound (LIPUS)has been shown to regulate the differentiation of adipose mesenchymal stromal cells. Hydrogels are promising biomaterials capable of encapsulating MSCs by providing an instructive biomimetic environment, graphene oxide (GO) has emerged as a promising nanomaterial for cartilage TE due to

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Camacho, Ángela, Álvaro Duarte, Darwin Dubay, et al. "Definición de nanomateriales para Colombia." Revista Colombiana de Química 45, no. 1 (2016): 15. http://dx.doi.org/10.15446/rev.colomb.quim.v45n1.58955.

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Debido a la creciente producción y uso de nanomateriales para actividades de investigación y desarrollo en Colombia, es necesario establecer una definición del término nanomaterial que facilite la toma de decisiones en torno a iniciativas de carácter regulatorio y de normatividad. Se presenta la definición de nanomateriales para Colombia que ha adoptado el Consejo Nacional Asesor de Nanociencia y Nanotecnología adscrito a la Red Colombiana de Nanociencia y Nanotecnología.

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Yedgar, Saul, Gregory Barshtein, and Alexander Gural. "Hemolytic Activity of Nanoparticles as a Marker of Their Hemocompatibility." Micromachines 13, no. 12 (2022): 2091. http://dx.doi.org/10.3390/mi13122091.

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The potential use of nanomaterials in medicine offers opportunities for novel therapeutic approaches to treating complex disorders. For that reason, a new branch of science, named nanotoxicology, which aims to study the dangerous effects of nanomaterials on human health and on the environment, has recently emerged. However, the toxicity and risk associated with nanomaterials are unclear or not completely understood. The development of an adequate experimental strategy for assessing the toxicity of nanomaterials may include a rapid/express method that will reliably, quickly, and cheaply make an

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Goyal, Monika. "Impact of variation in size, shape and dimension of nanomaterial on Debye temperature and Raman frequency." High Temperatures-High Pressures 52, no. 5 (2023): 395–409. http://dx.doi.org/10.32908/hthp.v52.1369.

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A simple unified thermodynamic approach is developed to determine the effect of size on Raman frequency of nanomaterials. The model approach is based on the Bond energy model developed to determine cohesive energy of nanomaterials with respect to bulk material. The model formulation includes the size, dimension and shape of nanomaterial. The model approach is obtained extending the relation used to determine the effect of size and shape on Debye temperature of nanomaterials. Raman Frequency variation with size is studied for Si, CdSe, InP, CeO2, SnO2, ZnO nanocrystals. It is noted from the mod

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Ma, Zewen, Jiantao Fu, Yunfei Zhang, Lanying Wang, and Yanping Luo. "Toxicity and Behavior-Altering Effects of Three Nanomaterials on Red Imported Fire Ants and Their Effectiveness in Combination with Indoxacarb." Insects 15, no. 2 (2024): 96. http://dx.doi.org/10.3390/insects15020096.

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The red imported fire ant (Solenopsis invicta Buren) is one of the 100 worst invasive alien species in the world. At present, the control of red imported fire ants is still mainly based on chemical control, and the most commonly used is indoxacarb bait. In this study, the contact and feeding toxicity of 16 kinds of nanomaterials to workers, larvae, and reproductive ants were evaluated after 24 h, 48 h, and 72 h. The results showed that the mortality of diatomite, Silica (raspberry-shaped), and multi-walled carbon nanotubes among workers reached 98.67%, 97.33%, and 68%, respectively, after cont

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Akpe, Victor, Tak H. Kim, Christopher L. Brown, and Ian E. Cock. "Circulating tumour cells: a broad perspective." Journal of The Royal Society Interface 17, no. 168 (2020): 20200065. http://dx.doi.org/10.1098/rsif.2020.0065.

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Circulating tumour cells (CTCs) have recently been identified as valuable biomarkers for diagnostic and prognostic evaluations, as well for monitoring therapeutic responses to treatments. CTCs are rare cells which may be present as one CTC surrounded by approximately 1 million white blood cells and 1 billion red blood cells per millilitre of peripheral blood. Despite the various challenges in CTC detection, considerable progress in detection methods have been documented in recent times, particularly for methodologies incorporating nanomaterial-based platforms and/or integrated microfluidics. H

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14

Kalhori, Hamid, Raheb Bagherpour, Mohammad Amir Akhlaghi, Sayed Mohsen Mirdamadi, and Mehdi Nasiri Sarvi. "LABORATORY TESTS ON THE STRENGTHENING OF WET-MIX SHOTCRETE LINING WITH THE USE OF NANOMATERIALS." Rudarsko-geološko-naftni zbornik 36, no. 1 (2021): 49–59. http://dx.doi.org/10.17794/rgn.2021.1.5.

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Adding nanomaterials to concrete extends the size range of constituent particles well into nano-scale dimensions, which could help the compacting of particles in cement-based materials. Regarding the differences between shotcrete and cast concrete, in this study, the properties of shotcrete with nano and micro-silica and nano-clay were experimentally studied. The micro and nanomaterials have been added at different percentages (6%, 9%, and 12%) to a shotcrete paste. The comparison was based on the uniaxial compressive strength, flexural strength, tensile strength, and porosity tests of differe

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Kunwar, Srijal, Arpita Roy, Utsav Bhusal, et al. "Bio-Fabrication of Cu/Ag/Zn Nanoparticles and Their Antioxidant and Dye Degradation Activities." Catalysts 13, no. 5 (2023): 891. http://dx.doi.org/10.3390/catal13050891.

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The biological synthesis of nanoparticles with copper, silver, and zinc (Cu, Ag, Zn) is reported in this study, adopting a greener, safe, reliable, and eco-friendly approach by using an aqueous leaf extract of Catharanthus roseus. The synthesised trimetallic nanoparticles were characterised using different characterisation techniques. The UV–visible spectroscopic technique was initially used to assess nanoparticle formation, in which absorption bands were observed at 220, 270, and 370 nm for Cu, Zn, and Ag nanocomposites, respectively. XRD revealed that the average crystalline size of the nano

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16

Rajaramanan, Tharmakularasa, Muthukumarasamy Natarajan, Punniamoorthy Ravirajan, Meena Senthilnanthanan, and Dhayalan Velauthapillai. "Ruthenium (Ru) Doped Titanium Dioxide (P25) Electrode for Dye Sensitized Solar Cells." Energies 13, no. 7 (2020): 1532. http://dx.doi.org/10.3390/en13071532.

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In this study, P25-titanium dioxide (TiO2) was doped with ruthenium (Ru) by systematically varying the Ru content at 0.15, 0.30, 0.45 and 0.6 mol%. The synthesized Ru-doped TiO2 nanomaterials have been characterized by X-ray diffraction (XRD), Raman spectroscopy, energy-dispersive X-ray (EDX) analysis, UV-visible (UV–Vis) spectroscopy, and electrochemical impedance (EIS) spectroscopy. The XRD patterns of undoped and Ru-doped TiO2 nanomaterials confirm the presence of mixed anatase and rutile phases of TiO2 while EDX spectrum confirms the presence of Ti, O and Ru. Further, UV-visible absorption

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17

Kamenska, Trayana, Miroslav Abrashev, Milena Georgieva, and Natalia Krasteva. "Impact of Polyethylene Glycol Functionalization of Graphene Oxide on Anticoagulation and Haemolytic Properties of Human Blood." Materials 14, no. 17 (2021): 4853. http://dx.doi.org/10.3390/ma14174853.

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Graphene oxide (GO) is one of the most explored nanomaterials in recent years. It has numerous biomedical applications as a nanomaterial including drug and gene delivery, contrast imaging, cancer treatment, etc. Since most of these applications need intravenous administration of graphene oxide and derivatives, the evaluation of their haemocompatibility is an essential preliminary step for any of the developed GO applications. Plentiful data show that functionalization of graphene oxide nanoparticles with polyethylene glycol (PEG) increases biocompatibility, thus allowing PEGylated GO to elicit

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Singh, Amanvir, Surjeet Chahal, Heena Dahiya, Arkaja Goswami, and Sonia Nain. "Synthesis of Ag nanoparticle supported graphene/multi-walled carbon nanotube based nanohybrids for photodegradation of toxic dyes." Materials Express 11, no. 6 (2021): 936–46. http://dx.doi.org/10.1166/mex.2021.1972.

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Irrespective of the superior surface properties of graphene, research interests are impulsively devoted to synthesizing 1-D carbon nanomaterial-based binary or ternary nanocomposites for potential applications. Nevertheless, an insightful comparison between the properties of graphene oxide (GO) and carbon nanotubes (CNTs) is lacking in the literature. In the present work, quasi-spherical silver nanoparticles (Ag NPs) were anchored on two different carbon nanomaterial/Ag-based photocatalysts, GO/Ag and multiwalled CNT (MWCNT)/Ag via a modified one-pot synthesis approach. The synthesized Ag NPs

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Turcu, Elvira, Cristina Giorgiana Coromelci, Valeria Harabagiu, and Maria Ignat. "Enhancing the Photocatalytic Activity of TiO2 for the Degradation of Congo Red Dye by Adjusting the Ultrasonication Regime Applied in Its Synthesis Procedure." Catalysts 13, no. 2 (2023): 345. http://dx.doi.org/10.3390/catal13020345.

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Recently, the ultrasound-assisted sol-gel synthesis procedure of mesoporous titania (TiO2) photocatalysts caught the researcher’s attention, due to the physicochemical properties enhancement of the resulting titania nanomaterials. Thus, by varying different synthesis parameters particular characteristics could be obtained. In the present study, the ultrasound pulse on/off ratio has been considered and the effect of the envisaged parameter on the textural, morphological, and optical features of titania nanomaterial has been investigated. Therefore, X-ray Diffraction (XRD), Fourier-Transform Inf

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Alamier, Waleed M., Nazim Hasan, Syed Kashif Ali, and Mohammed D. Y. Oteef. "Biosynthesis of Ag Nanoparticles Using Caralluma acutangula Extract and Its Catalytic Functionality towards Degradation of Hazardous Dye Pollutants." Crystals 12, no. 8 (2022): 1069. http://dx.doi.org/10.3390/cryst12081069.

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Nanomaterials, today, are an integral part of our everyday lives, industrial processes and appliances. Biosynthesis, because of its environmental sustainability, is now becoming a hot topic. The biosynthesis of nanomaterials using plant phytochemicals enhances the nanomaterial’s biocompatibility and its compatibility with the environment too. Hence, forthe first time, this study uses Caralluma acutangula (CA) plant extracts to synthesize silver nanoparticles (CA-AgNPs) and characterize them using UV–visible spectroscopy, FTIR, Raman spectroscopy, XRD, TEM, TGA, SEM, EDX, zeta potential, and ba

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Bou Orm, Nadine, Quoc Trieu, and Stephane Daniele. "TiO2-Based Hybrid Nanocomposites Modified by Phosphonate Molecules as Selective PAH Adsorbents." Molecules 23, no. 11 (2018): 3046. http://dx.doi.org/10.3390/molecules23113046.

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A robust sol-gel process was developed for the synthesis of surface-functionalized titania nanocrystallites bearing unsaturated groups starting from molecular heteroleptic single-source precursors. Molecules and nanomaterials were thoroughly characterized by multinuclear liquid and solid-state nuclear magnetic resonance (NMR), infra-red (FT-IR, DRIFT) spectroscopies. Nitrogen adsorption-desorption (BET), thermogravimetric (TG) and elemental analyses demonstrated the reliability and the fine tuning of the surface functionalization in terms of ratio TiO2:ligand. The as-prepared materials were us

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Ahsan, Hajra, Muhammad Shahid, Muhammad Imran, et al. "Photocatalysis and adsorption kinetics of azo dyes by nanoparticles of nickel oxide and copper oxide and their nanocomposite in an aqueous medium." PeerJ 10 (November 14, 2022): e14358. http://dx.doi.org/10.7717/peerj.14358.

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Background Azo dyes are recalcitrant organic pollutants present in textile industry effluents. Conventional treatment methods to remove them come with a range of disadvantages. Nanoparticles and their nanocomposites offer more efficient, less expensive and easy to handle wastewater treatment alternative. Methods In this study, nanoparticles of nickel oxide (NiO-NPs), copper oxide (CuO-NPs) and their nanocomposite (NiO/CuO-NC) were synthesized using co-precipitation method. The functional groups present on the surface of synthesized nanomaterials were verified using Fourier-transform infrared s

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Wang, Chen, Yang Liu, and Mingchang Zhang. "Antibacterial Effect of Nanostructured Cuprous Gold and Silver Oxide Composite Nanoshell on Keratitis." Journal of Biomedical Nanotechnology 20, no. 2 (2024): 324–29. http://dx.doi.org/10.1166/jbn.2024.3764.

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We developed novel inorganic nanomaterials to combat drug-resistant bacterial infections in keratitis. These infections cause rapid severe corneal ulcers. Traditional antibiotics face challenges due to bacterial resistance. We investigated new therapies by designing nanomaterials. In an animal model of diabetic keratitis, we studied the materials’ antibacterial properties and mechanisms. In vitro, nanomaterials displayed strong antibacterial effects, confirmed by quantitative analysis. In vivo, using thermal imaging, wound closure monitoring, clinical scores, and histopathology, we demonstrate

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S. S. dos Santos, Paulo, José M. M. M. de Almeida, Isabel Pastoriza-Santos, and Luís C. C. Coelho. "Advances in Plasmonic Sensing at the NIR—A Review." Sensors 21, no. 6 (2021): 2111. http://dx.doi.org/10.3390/s21062111.

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Surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) are among the most common and powerful label-free refractive index-based biosensing techniques available nowadays. Focusing on LSPR sensors, their performance is highly dependent on the size, shape, and nature of the nanomaterial employed. Indeed, the tailoring of those parameters allows the development of LSPR sensors with a tunable wavelength range between the ultra-violet (UV) and near infra-red (NIR). Furthermore, dealing with LSPR along optical fiber technology, with their low attenuation coefficients at NIR, a

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Rana Ismael Khaleel. "Synthesis and Analysis of Nickel Oxide Nanoparticles from Red Hibiscus Plant and Evaluation of Its Antibacterial Properties." International Journal of Scientific Research in Science, Engineering and Technology 12, no. 3 (2025): 213–21. https://doi.org/10.32628/ijsrset2512324.

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The presented research examines the environmentally friendly synthesis regarding nickel oxide (NiO) nanoparticles (NPs) for enhancing the properties related to the laser ablation-prepared nanomaterial. Red hibiscus is added as a plant extract to enhance the nanomaterial's properties as well as its antibacterial efficacy. NiO-NPs are created using a Nd: Yag pulsed laser with an 800 mJ wavelength and a wavelength of 1064 nm in a deionized water medium. At room temperature, optical absorbance spectra in the optical range (200-900 nm) have been examined. X-Ray Dispersive Spectroscopy, UV-Vis Spect

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Stabler, Sarah, Ruby Anne Lang, Amro El Badawy, Marie Yeung, and Jean Lee. "Analysis and Modification of a Colorimetric Nanosensor for Rapid Detection of Escherichia coli in Water." Crystals 14, no. 4 (2024): 386. http://dx.doi.org/10.3390/cryst14040386.

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This research analyzed the mechanisms of work and modified a colorimetric nanosensor to make it more cost-effective for the detection of Escherichia coli (E. coli) in water. The base nanosensors modified herein rely on a competitive binding detection mechanism, where positively charged gold nanoparticles coated with polyethyleneimine (PEI-AuNPs) preferably bind to negatively charged E. coli in the presence of β-galactosidase (β-Gal) enzymes and chlorophenol red β-d-galactopyranosides (CPRG). The positive surface charge of the nanoparticle, rather than nanoparticle composition or type of chemic

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Wang, Kewei, Yanli Li, Haijie Li, et al. "Upconversion fluorescent nanoparticles based-sensor array for discrimination of the same variety red grape wines." RSC Advances 9, no. 13 (2019): 7349–55. http://dx.doi.org/10.1039/c8ra09959f.

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Hamza, Muhammad, Ataf Ali Altaf, Samia Kausar, et al. "Catalytic Removal of Alizarin Red Using Chromium Manganese Oxide Nanorods: Degradation and Kinetic Studies." Catalysts 10, no. 10 (2020): 1150. http://dx.doi.org/10.3390/catal10101150.

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Dye removal through photocatalytic degradation employing nanomaterials as catalysts is a growing research area. In current studies, photocatalytic alizarin red (AR) dye degradation has been investigated by designing a series of Cr based manganese oxide nanomaterials (MH1–MH5). Synthesized nanomaterials were characterized by powder X-ray diffraction, scanning electron microscopy/energy dispersive x-ray, Brunauer–Emmett–Teller, and photoluminescence techniques and were utilized for photocatalytic AR dye degradation under UV light. AR dye degradation was monitored by UV–visible spectroscopy and p

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Shen, Jie, Muhammad Shafiq, Ming Ma, and Hangrong Chen. "Synthesis and Surface Engineering of Inorganic Nanomaterials Based on Microfluidic Technology." Nanomaterials 10, no. 6 (2020): 1177. http://dx.doi.org/10.3390/nano10061177.

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The controlled synthesis and surface engineering of inorganic nanomaterials hold great promise for the design of functional nanoparticles for a variety of applications, such as drug delivery, bioimaging, biosensing, and catalysis. However, owing to the inadequate and unstable mass/heat transfer, conventional bulk synthesis methods often result in the poor uniformity of nanoparticles, in terms of microstructure, morphology, and physicochemical properties. Microfluidic technologies with advantageous features, such as precise fluid control and rapid microscale mixing, have gathered the widespread

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Xu, Qianzhi, Xiuying Wang, Xiaoli Dong, Chun Ma, Xiufang Zhang, and Hongchao Ma. "Improved Visible Light Photocatalytic Activity for TiO2Nanomaterials by Codoping with Zinc and Sulfur." Journal of Nanomaterials 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/157383.

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S/Zn codoped TiO2nanomaterials were synthesized by a sol-gel method. X-ray diffraction, UV-vis diffuse reflectance spectroscopy, transmission electron microscopy, photoluminescence spectroscopy, and X-ray photoelectron spectroscopy were used to characterize the morphology, structure, and optical properties of the prepared samples. The introduction of Zn and S resulted in significant red shift of absorption edge for TiO2-based nanomaterials. The photocatalytic activity was evaluated by degrading reactive brilliant red X-3B solution under simulated sunlight irradiation. The results showed S/Zn c

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Zhao, Shihua, Huijian Cai, and Peng Li. "Pure Purple Line and Red Line Emissions of ZnO Nanomaterials." Journal of Nanoscience and Nanotechnology 16, no. 7 (2016): 7738–41. http://dx.doi.org/10.1166/jnn.2016.13065.

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Periasamy, Arun Prakash, Rini Ravindranath, Prathik Roy, et al. "Carbon–boron core–shell microspheres for the oxygen reduction reaction." Journal of Materials Chemistry A 4, no. 33 (2016): 12987–94. http://dx.doi.org/10.1039/c6ta03684h.

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Carbon nanomaterials (CNMs) with self-assembled carbon microspheres are prepared from red onion skins. The CNMs are further used to prepare carbon–boron core–shell CNMs, which provide high activity for the oxygen reduction reaction (ORR).

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Fu, Ding-Yi, Ya-Rong Xue, Yongqing Guo, et al. "Strong red-emitting gold nanoclusters protected by glutathione S-transferase." Nanoscale 10, no. 48 (2018): 23141–48. http://dx.doi.org/10.1039/c8nr05691a.

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Won, Hansol, Sung-Hyun Kim, Jun-Young Yang, et al. "Colony-Forming Efficiency Assay to Assess Nanotoxicity of Graphene Nanomaterials." Toxics 10, no. 5 (2022): 236. http://dx.doi.org/10.3390/toxics10050236.

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The nano-market has grown rapidly over the past decades and a wide variety of products are now being manufactured, including those for biomedical applications. Despite the widespread use of nanomaterials in various industries, safety and health effects on humans are still controversial, and testing methods for nanotoxicity have not yet been clearly established. Nanomaterials have been reported to interfere with conventional cytotoxicity tests due to their unique properties, such as light absorption or light scattering. In this regard, the colony-forming efficacy (CFE) assay has been suggested

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Acosta, Selene, Carlos Moreno-Aguilar, Dania Hernández-Sánchez, et al. "A few-layer graphene/chlorin e6 hybrid nanomaterial and its application in photodynamic therapy against Candida albicans." Beilstein Journal of Nanotechnology 11 (July 17, 2020): 1054–61. http://dx.doi.org/10.3762/bjnano.11.90.

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The global emergence of multidrug resistance of fungal infections and the decline in the discovery of new antibiotics are increasingly prevalent causes of hospital-acquired infections, among other major challenges in the global health care sector. There is an urgent need to develop noninvasive, nontoxic, and new antinosocomial approaches that work more effectively and faster than current antibiotics. In this work, we report on a biocompatible hybrid nanomaterial composed of few-layer graphene and chlorin e6 (FLG-Ce6) for the photodynamic treatment (PDT) of Candida albicans. We show that the FL

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Nunes, Marcela Trojahn, Fabiele Schaefer Rodrigues, and Jocenir Boita. "Nanomateriais à base de óxidos de ferro suportados com resíduos ricos em sílica." Ciência e Natura 40 (March 12, 2019): 225. http://dx.doi.org/10.5902/2179460x35524.

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Nanoparticles can be obtained through different chemical components, such as iron oxides that have the advantages of easy synthesis, low toxicity, biocompatibility, high adsorption capacity and low cost. Since, the NPs have quite peculiar characteristics differing significantly from other materials mainly by the increase of the surface area and also by the quantum effects. The objective of this work is to obtain Nanomaterials based on iron oxides supported by different residues (rice husk ash, red ceramics and agate), composed mostly of SiO2, using the polyol method, and to evaluate the possib

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Kost, Veronika, Diandra Mauro, and Tatiana Da Ros. "Red and Blue Emissive Graphene Quantum Dots for Biomedical Applications." ECS Meeting Abstracts MA2023-01, no. 9 (2023): 1151. http://dx.doi.org/10.1149/ma2023-0191151mtgabs.

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Graphene quantum dots (GQDs) are a promising class of carbon nanomaterials characterized by unique photophysical and photochemical properties, which can be adjusted by using adapt preparation methods.1 Despite the wide range of synthesis routes suitable for GQDs production, achieving reproducible and properly controllable synthesis remains a challenging task.2,3 GQDs are characterized by high solubility in water, high biocompatibility, and low toxicity, which determine their wide application in bioimaging, biosensing, drug delivery, diagnosis, and therapy of cancer, and other more.4-7 Their sy

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Gupta, Mohini, Rajamani Nagarajan, Chitteti Ramamurthy, Perumal Vivekanandan, and G. Vijaya Prakash. "KLa(0.95−x)GdxF4:Eu3+ hexagonal phase nanoparticles as luminescent probes for in vitro Huh-7 cancer cell imaging." Dalton Transactions 50, no. 15 (2021): 5197–207. http://dx.doi.org/10.1039/d1dt00539a.

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Strong and site selective red-emitting photoluminescent/MRI multi-functional KLa<sub>(0.95−x)</sub>Gd<sub>x</sub>F<sub>4</sub>:Eu<sup>3+</sup> (x = 0–0.4) bio-compatible nanomaterials for targeted in-vitro liver cancer cell imaging.

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Medina-Acosta, Martin, Manuel J. Chinchillas-Chinchillas, Horacio E. Garrafa-Gálvez, et al. "Photocatalytic Degradation of Four Organic Dyes Present in Water Using ZnO Nanoparticles Synthesized with Green Synthesis Using Ambrosia ambrosioides Leaf and Root Extract." Processes 12, no. 11 (2024): 2456. http://dx.doi.org/10.3390/pr12112456.

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Currently, several organic dyes found in wastewater cause severe contamination problems for flora, fauna, and people in direct contact with them. This research proposes an alternative for the degradation of polluting dyes using ZnO nanoparticles (NPs) synthesized by an ecological route using leaf and root extracts of Ambrosia ambrosioides as a reducing agent (with a weight/volume ratio = 4%). Scanning Electron Microscopy (SEM) was used to determine the morphology, showing an agglomeration of cluster-shaped NPs. Using Transmission Electron Microscopy (TEM), different sizes of NPs ranging from 5

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Hyppänen, Iko, Jorma Hölsä, Jouko Kankare, Mika Lastusaari, and Laura Pihlgren. "Upconversion Properties of Nanocrystalline ZrO2:Yb3+, Er3+Phosphors." Journal of Nanomaterials 2007 (2007): 1–8. http://dx.doi.org/10.1155/2007/16391.

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Combustion and sol-gel methods were used to prepare the upconverting nanocrystallineZrO2:Yb3+,Er3+phosphors. The crystal structure was studied by X-ray powder diffraction and the crystallite sizes were estimated with the Scherrer formula. Impurities and nanomaterials' thermal degradation were analyzed with FT-IR spectroscopy and thermal analysis, respectively. Upconversion luminescence and luminescence decays were studied with IR-laser excitation at 977 nm. All nanomaterials possessed the cubicZrO2fluorite-type structure except for a small monoclinic impurity obtained with the sol-gel method.

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Celedón, Salvador, Andrea S. S. de Camargo, Mauricio Fuentealba, Vania Artigas, Eglantina Benavente, and Guillermo González. "Highly emissive host–guest based on nanoclay intercalated with an Eu3+ complex bearing a new Ru2+ organometallic ligand." New Journal of Chemistry 42, no. 18 (2018): 15284–94. http://dx.doi.org/10.1039/c8nj02432d.

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Stopikowska, Natalia, Marcin Runowski, Przemysław Woźny, Stefan Lis, and Peng Du. "Generation of Pure Green Up-Conversion Luminescence in Er3+ Doped and Yb3+-Er3+ Co-Doped YVO4 Nanomaterials under 785 and 975 nm Excitation." Nanomaterials 12, no. 5 (2022): 799. http://dx.doi.org/10.3390/nano12050799.

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Materials that generate pure, single-color emission are desirable in the development and manufacturing of modern optoelectronic devices. This work shows the possibility of generating pure, green up-conversion luminescence upon the excitation of Er3+-doped nanomaterials with a 785 nm NIR laser. The up-converting inorganic nanoluminophores YVO4: Er3+ and YVO4: Yb3+ and Er3+ were obtained using a hydrothermal method and subsequent calcination. The synthesized vanadate nanomaterials had a tetragonal structure and crystallized in the form of nearly spherical nanoparticles. Up-conversion emission sp

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Nunes, Aline, Graziano Rilievo, Massimiliano Magro, Marcelo Maraschin, Fabio Vianello, and Giuseppina Pace Pereira Lima. "Biotechnological Applications of Biogenic Nanomaterials from Red Seaweed: A Systematic Review (2014–2024)." International Journal of Molecular Sciences 26, no. 9 (2025): 4275. https://doi.org/10.3390/ijms26094275.

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Green synthesized nanoparticles (NPs) are arousing constantly increasing attention due to inherent advantages such as biocompatibility, nontoxicity, and cost-effectiveness. As the state of the art of this rapidly evolving topic demands a punctual update, the present study was focused on reviewing the novelty, feasibility, and effectiveness related to the specific category of red seaweed-derived NPs. Among algae, red seaweeds have already gained consideration in the global market due to their high content of primary and secondary metabolites, supporting multifunctional applications across vario

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Meng, Di, Shuoye Yang, Yanan Yang, Lu Zhang, and Lan Cui. "Synergistic chemotherapy and phototherapy based on red blood cell biomimetic nanomaterials." Journal of Controlled Release 352 (December 2022): 146–62. http://dx.doi.org/10.1016/j.jconrel.2022.10.019.

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Guan, Hongxia, Yanhua Song, Keyan Zheng, Ye Sheng, and Haifeng Zou. "BaGdF5:Dy3+,Tb3+,Eu3+ multifunctional nanospheres: paramagnetic, luminescence, energy transfer, and tunable color." Physical Chemistry Chemical Physics 18, no. 20 (2016): 13861–73. http://dx.doi.org/10.1039/c6cp01798c.

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The photoluminescence emission color tones of BaGdF<sub>5</sub>:Dy<sup>3+</sup>,Tb<sup>3+</sup>,Eu<sup>3+</sup> nanomaterials change from yellow-green to red by adjusting the doping concentration and the different excitation wavelengths. Furthermore, the obtained samples also exhibit paramagnetic properties.

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Jiao, Yang, Yimin Guo, Yingcong Fan, et al. "Triggering of Apoptosis in Osteosarcoma 143B Cell Line by Carbon Quantum Dots via the Mitochondrial Apoptotic Signal Pathway." BioMed Research International 2020 (July 11, 2020): 1–12. http://dx.doi.org/10.1155/2020/2846297.

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Objectives. Carbon-based nanomaterials have gained attention in the field of biomedicine in recent years, especially for the treatment of complicated diseases such as cancer. Here, we report a novel carbon-based nanomaterial, named carbon quantum dots (CQDs), which has potential for cancer therapy. We performed a systematic study on the effects of CQDs on the osteosarcoma 143B cell line in vitro and in vivo. Methods. Cell counting assay, the neutral red assay, lactic dehydrogenase assay, and fluorescein isothiocyanate (FITC) Annexin V/Propidium iodide (PI) were used to detect the cytotoxicity

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Mahajan, Shraddha, Shailesh Singh, and Himanshi Dwivedi. "Efficacy of nanomaterials for sustainable crop productivity of Capsicum (Capsicum annuum L.) var. Rani under naturally ventilated polyhouse." Journal of Applied and Natural Science 15, no. 3 (2023): 1282–91. http://dx.doi.org/10.31018/jans.v15i3.4805.

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Nanomaterials, as a source of plant nutrients, play a significant role in cellular metabolism and nutrients uptake by plants, so they have the potential to improve the growth and productivity of Capsicum. A replicated field trial was carried out in 3 x 3 factors Randomized Block Design (RBD) with two factors viz., micronutrients (Cu, B and Mn) and nanomaterials (nano-Fe, nano-Zn and nano-Mg) applied at the rate of 1000 ppm to explore efficacy of nanomaterials and micronutrient for enhancing productivity of Capsicum (Capsicum annuum L.) var. Rani. The layout of experimental area was designed to

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Reddy, Byra R. C., Holaly C. S. Manjunatha, Yalekadakalu S. Vidya, et al. "X-ray/gamma radiation shielding properties of zinc ferrite nanoparticles synthesised via solution combustion method." Radiation Protection Dosimetry 199, no. 20 (2023): 2506–12. http://dx.doi.org/10.1093/rpd/ncad224.

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Abstract Zinc ferrite (ZnFe2O4) nanoparticles were synthesised via solution combustion method using urea as a fuel. The synthesised samples were characterised with various techniques. The cubic structure with Fd-3 m space group is confirmed by Powder X-ray Diffraction and Bragg’s reflection. The crystallite size estimated from Scherrer’s method was found to be 40 nm. The agglomerated irregular shape and sized surface morphology was confirmed by Scanning Electron Microscopy image. The direct energy band gap determined from Wood and Tauc’s relation was found to be 5.25 eV. Using a NaI (Tl) detec

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Fiket, Željka, Binoy Kumar Saikia, Sanchita Chakravarty, and Gordana Medunić. "CARBON-BASED RAW MATERIALS PLAY KEY ROLES IN TECHNOLOGY OF THE 21ST CENTURY: INDIAN CASE STUDIES." Rudarsko-geološko-naftni zbornik 37, no. 5 (2022): 15–22. http://dx.doi.org/10.17794/rgn.2022.5.2.

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Coal is a vital carbon-based raw material which is used in the production of various advanced nanomaterials. This particularly holds true for the relevant research and development trends in India. New more environmentally friendly processes are under development with respect to metallurgical coke making and quality enhancement of high-ash Indian coal. Compared with chemical and physical methods, beneficiation of high-ash coal and its combustion by-products with organic liquids (various natural oils) are much more superior in terms of costs, efficiency, and environmental implications. Nanodiamo

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Rajaramanan, Tharmakularasa, Sivagowri Shanmugaratnam, Vijayakumar Gurunanthanan, et al. "Cost Effective Solvothermal Method to Synthesize Zn-Doped TiO2 Nanomaterials for Photovoltaic and Photocatalytic Degradation Applications." Catalysts 11, no. 6 (2021): 690. http://dx.doi.org/10.3390/catal11060690.

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Titanium dioxide (TiO2) is a commonly used wide bandgap semiconductor material for energy and environmental applications. Although it is a promising candidate for photovoltaic and photocatalytic applications, its overall performance is still limited due to low mobility of porous TiO2 and its limited spectral response. This limitation can be overcome by several ways, one of which is doping that could be used to improve the light harvesting properties of TiO2 by tuning its bandgap. TiO2 doped with elements, such as alkali-earth metals, transition metals, rare-earth elements, and nonmetals, were

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