Tuning the optical properties of Fe-Au core-shell nanoparticles with spherical and spheroidal nanostructures

Publication date: Available online 10 May 2019Source: Physics Letters AAuthor(s): Pradeep Bhatia, S.S. Verma, M.M. SinhaAbstractPresent research interest is to highlight on the manufacturing of core-shell nanoparticles because of core activity with unique properties and surface modification by a shell in the diverse fields (e.g. optoelectronic, catalysis and magneto-optics). In addition, the combined optical properties of magnetic-plasmonic core-shell NPs make them ideal candidates for many applications in biomedical fields. The influence of Fe-core and Au-shell for the formation of the core-shell viz. spherical and spheroidal nanostructures is studied using the discrete dipole approximation method. DDA is an approximation method and its accuracy is compared to Mie theory results for spherical core-shell NPs as Mie theory gives the exact solution to spherical targeted NPs. DDA calculations are further extended to spheroidal core-shell nanostructures. It is observed that the localized surface plasmon resonance (LSPR) peak position in considered core-shell nanostructures is enhanced by changing the cores and shell thickness in the core-shell spherical nanostructures and aspect ratio as well as shell thickness in spheroidal core-shell nanostructures. The absorption spectra are found between 363–788 nm wavelength ranges and can be tuned into UV-visible-near-infrared region of the electromagnetic (EM) spectrum in accordance with desired applications. It has been found that t...
Source: Physics Letters A - Category: Physics Source Type: research

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Dalton Trans., 2020, Accepted Manuscript DOI: 10.1039/C9DT04335G, PaperShihao Li, Lin Zhang Photothermal therapy (PTT), rising the temperature triggered only by light signals at tumor sites to remove cancer cells has been considered as an attractive strategy in cancer therapy. Nevertheless, the... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - Dalton Trans. latest articles - Category: Chemistry Authors: Source Type: research
Publication date: Available online 26 January 2020Source: Acta Pharmaceutica Sinica BAuthor(s): Qin Guo, Chen JiangAbstractWith the development of biotherapy, biomacromolecular drugs have gained tremendous attention recently especially in drug development field due to the sophisticated functions in vivo. Over the past few years, a motley variety of drug delivery strategies have been developed for biomacromolecular drugs to overcome the difficulties in the druggability, e.g., the instability and easily restricted by physiologic barriers. The application of novel delivery systems to deliver biomacromolecular drugs can usuall...
Source: Acta Pharmaceutica Sinica B - Category: Cancer & Oncology Source Type: research
Publication date: Available online 25 January 2020Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Yan Li, Shuai Wang, Fang Xiang Song, Li Zhang, Wei Yang, Hong Xia Wang, Qian Lin ChenAbstractMesoporous silica nanoparticles with folic acid (MSN-COOH-Tet-HBP-FA) are able to mediate targeting and have a pH stimulation response character, and therefore have been successfully synthesized as vectors for antitumor drug delivery. The model drug is tetrandrine (Tet). The chemical structure and properties of these NPs were characterized through systematic characterization analyses. Their drug loadi...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - Category: Chemistry Source Type: research
New J. Chem., 2020, Accepted Manuscript DOI: 10.1039/C9NJ05860E, PaperFan Gao, Fei Wang, Xuan Nie, Ze Zhang, Guang Chen, Lei Xia, Long-Hai Wang, Chang-Hui Wang, Zong-Yao Hao, Wen-Jian Zhang, Chun-Yan Hong, Ye-Zi You Mitochondrial malfunction is considered to be a decisive signal of apoptosis. It would be a promising strategy to target mitochondria in cancer cells to generate reactive oxygen species (ROS) directly... The content of this RSS Feed (c) The Royal Society of Chemistry
Source: RSC - New J. Chem. latest articles - Category: Chemistry Authors: Source Type: research
Publication date: Available online 25 January 2020Source: Journal of Advanced ResearchAuthor(s): Bing Wei, Fei Dong, Wei Yang, Chunhua Luo, Qiujing Dong, Zuoqin Zhou, Zheng Yang, Liangquan ShengAbstractFor facilitating theranostic nanoplatform with multimodal therapeutic ability, we develop the core-shell structured CDs@SiO2@TiO2 nanoplatforms (CST NPs). The designed CST NPs possess excellent photothermal effect and fluorescence resonance energy transfer (FRET) induced photodynamic property, which could achieve synergistic photothermal and photodynamic therapy. Meanwhile, the photothermal ability of CST NPs acts as a key r...
Source: Journal of Advanced Research - Category: Research Source Type: research
AbstractOral health care is an integral component of interprofessional collaborative care for children and adolescents diagnosed with cancer. The current review highlights the phases of cancer therapy when dental interventions and palliative care are necessary for children diagnosed with cancer. Contemporary research and review articles pertinent to the oral and dental complications during pediatric cancer therapy and late effects in pediatric cancer survivors were identified by PubMed/MEDLINE search. Best practice guidelines set forth by specialty organizations were also included. The literature search was limited to arti...
Source: Cancer and Metastasis Reviews - Category: Cancer & Oncology Source Type: research
Publication date: April 2020Source: Biomedicine &Pharmacotherapy, Volume 124Author(s): Huan Gao, Di Liang, Chenchen Li, Guoxing Xu, Mengnan Jiang, Heng Li, Jianyuan Yin, Yanqing SongAbstract20(S)-Rh2 is a ginsenoside isolated from Panax ginseng, which exhibits anti-cancer activities on various human cancer cells. A novel 20(S)-Rh2 derivative, 2-Deoxy-Rh2 was synthesized and hybridized with protopanaxadiol and 2-deoxy-glucose in an attempt to enhance the anticancer activity. Through screening the antitumor effect against various cell lines by MTT assay, 2-Deoxy-Rh2 especially resulted in a concentration-dependent and ti...
Source: Biomedicine and Pharmacotherapy - Category: Drugs & Pharmacology Source Type: research
Publication date: March–April 2020Source: Reports of Practical Oncology &Radiotherapy, Volume 25, Issue 2Author(s): Ramaiah Vinay Kumar, Suman BhaskerAbstractObesity has become epidemic both in developed and developing countries. Socio-economic (SE) development has resulted in increased prevalence of obesity across all social groups in developing countries that is contrary to the effects of rising SE status on prevalence of obesity in the developed world. Obesity is not only associated with metabolic syndrome, cardiovascular disease, diabetes but is also a risk factor for cancer and is responsible for increased c...
Source: Reports of Practical Oncology and Radiotherapy - Category: Cancer & Oncology Source Type: research
Fight Aging! publishes news and commentary relevant to the goal of ending all age-related disease, to be achieved by bringing the mechanisms of aging under the control of modern medicine. This weekly newsletter is sent to thousands of interested subscribers. To subscribe or unsubscribe from the newsletter, please visit: https://www.fightaging.org/newsletter/ Longevity Industry Consulting Services Reason, the founder of Fight Aging! and Repair Biotechnologies, offers strategic consulting services to investors, entrepreneurs, and others interested in the longevity industry and its complexities. To find out m...
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Publication date: Available online 24 January 2020Source: International Journal of PharmaceuticsAuthor(s): Kharkar Prachi Balaram, Talkar Swapnil Sunil, Patravale Vandana BharatAbstractThe aim of this study is to formulate thermodynamically stable docetaxel loaded nanostructured lipid carriers (DTX-NLCs) for parenteral cancer therapy with improved long term stability and better pharmacokinetic performance. DTX-NLCswere formulated using microemulsion(ME) template technique and characterized for particle size,entrapment efficiency (EE%), drug content and in vitro release kinetics. Further evaluation of NLCs was carried out b...
Source: International Journal of Pharmaceutics - Category: Drugs & Pharmacology Source Type: research
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