scholarly journals Sucrose-Responsive Intercommunicated Janus Nanoparticles Network

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2492
Author(s):  
Sandra Jimenez-Falcao ◽  
Daniel Torres ◽  
Paloma Martínez-Ruiz ◽  
Diana Vilela ◽  
Ramón Martínez-Máñez ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Glucose Oxidase ◽  
Short Distance ◽  
Biological Systems ◽  
Research Field ◽  
Nanoscale Materials ◽  
Early Stages ◽  
Janus Nanoparticles ◽  
Chemical Messengers

Inspired by biological systems, the development of artificial nanoscale materials that communicate over a short distance is still at its early stages. This work shows a new example of a cooperating system with intercommunicated devices at the nanoscale. The system is based on the new sucrose-responsive Janus gold-mesoporous silica (Janus Au-MS) nanoparticles network with two enzyme-powered nanodevices. These nanodevices involve two enzymatic processes based on invertase and glucose oxidase, which are anchored on the Au surfaces of different Janus Au-MS nanoparticles, and N-acetyl-L-cysteine and [Ru(bpy)3]2+ loaded as chemical messengers, respectively. Sucrose acts as the INPUT, triggering the sequential delivery of two different cargoes through the enzymatic control. Nanoscale communication using abiotic nanodevices is a developing potential research field and may prompt several applications in different disciplines, such as nanomedicine.

scholarly journals Synthesis of colloidal Janus nanoparticles by asymmetric capping of mesoporous silica with phenylsilsesquioxane

2015 ◽  
Vol 51 (15) ◽  
pp. 3211-3214 ◽  
Author(s):  
Hiroto Ujiie ◽  
Atsushi Shimojima ◽  
Kazuyuki Kuroda
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Aqueous Dispersion ◽  
Composite Nanoparticles ◽  
Mesostructured Silica ◽  
Janus Nanoparticles

Janus-type mesoporous silica nanoparticles asymmetrically capped with non-porous phenylsilsesquioxane have been prepared by simply adding phenyltriethoxysilane to an aqueous dispersion of mesostructured silica–surfactant composite nanoparticles.

Glutathione disulfide-sensitive Janus nanomachine controlled by an enzymatic AND logic gate for smart delivery

Nanoscale ◽  
2021 ◽  
Author(s):  
Beatriz Mayol ◽  
Paula Diez ◽  
Alfredo Sánchez ◽  
Cristina De La Torre Paredes ◽  
Anabel Villalonga ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Logic Gate ◽  
Boolean Logic ◽  
Glutathione Disulfide ◽  
Janus Nanoparticles

This work describes the assembly of a novel enzyme-controlled nanomachine operated through an AND Boolean logic gate for on-command delivery. The nanodevice was constructed on Au-mesoporous silica Janus nanoparticles capped...

Organization and Self-Assembly Away from Equilibrium: Toward Thermodynamic Design Principles

2021 ◽  
Vol 12 (1) ◽  
pp. 273-290
Author(s):  
Michael Nguyen ◽  
Yuqing Qiu ◽  
Suriyanarayanan Vaikuntanathan
Keyword(s):  
Energy Dissipation ◽  
Self Assembly ◽  
Biological Systems ◽  
Design Principles ◽  
Nonequilibrium Process ◽  
Nanoscale Materials ◽  
Stochastic Thermodynamics ◽  
Synthetic Materials ◽  
Starting Point

Studies of biological systems and materials, together with recent experimental and theoretical advances in colloidal and nanoscale materials, have shown how nonequilibrium forcing can be used to modulate organization in many novel ways. In this review, we focus on how an accounting of energy dissipation, using the tools of stochastic thermodynamics, can constrain and provide intuition for the correlations and configurations that emerge in a nonequilibrium process. We anticipate that the frameworks reviewed here can provide a starting point to address some of the unique phenomenology seen in biophysical systems and potentially replicate them in synthetic materials.

Understanding Toxicity of Nanomaterials in Biological Systems

2016 ◽  
pp. 403-427
Author(s):  
Irshad Ahmad Wani ◽  
Tokeer Ahmad
Keyword(s):  
Safety Assessment ◽  
Biological Systems ◽  
Toxicity Assessment ◽  
Applied Science ◽  
Nanoscale Materials ◽  
Energy Medicine ◽  
Wide Range ◽  
Almost All ◽  
Direct Use

Nanotechnology is a growing applied science having considerable global socioeconomic value. Nanoscale materials are casting their impact on almost all industries and all areas of society. A wide range of engineered nanoscale products has emerged with widespread applications in fields such as energy, medicine, electronics, plastics, energy and aerospace etc. While the market for nanotechnology products will have grown over one trillion US dollars by 2015, the presence of these material is likely to increase leading to increasing likelihood of exposure. The direct use of nanomaterials in humans for medical and cosmetic purposes dictates vigorous safety assessment of toxicity. Therefore this book chapter provides the detailed toxicity assessment of various types of nanomaterials.

Understanding Toxicity of Nanomaterials in Biological Systems

2017 ◽  
pp. 1533-1557
Author(s):  
Irshad Ahmad Wani ◽  
Tokeer Ahmad
Keyword(s):  
Safety Assessment ◽  
Biological Systems ◽  
Toxicity Assessment ◽  
Applied Science ◽  
Nanoscale Materials ◽  
Energy Medicine ◽  
Wide Range ◽  
Almost All ◽  
Direct Use

Nanotechnology is a growing applied science having considerable global socioeconomic value. Nanoscale materials are casting their impact on almost all industries and all areas of society. A wide range of engineered nanoscale products has emerged with widespread applications in fields such as energy, medicine, electronics, plastics, energy and aerospace etc. While the market for nanotechnology products will have grown over one trillion US dollars by 2015, the presence of these material is likely to increase leading to increasing likelihood of exposure. The direct use of nanomaterials in humans for medical and cosmetic purposes dictates vigorous safety assessment of toxicity. Therefore this book chapter provides the detailed toxicity assessment of various types of nanomaterials.

scholarly journals The Entrepreneurial Finance and the Issue of Funding Startup Companies

2018 ◽  
Vol 14 (13) ◽  
pp. 268 ◽  
Author(s):  
Achibane Mustapha ◽  
Jamal Tlaty
Keyword(s):  
Corporate Finance ◽  
Agency Theory ◽  
Theoretical Aspect ◽  
Research Field ◽  
Entrepreneurial Finance ◽  
Early Stages ◽  
Or Groups

The emergence of entrepreneurial finance as a research field is the result of a double interest from both entrepreneurship researchers and financiers. Indeed, researchers focus on the financial fact existing in all entrepreneurial projects, while financiers consider that entrepreneurial situations have specific features that we should lean on. Our article is a presentation of the basic mechanisms of the entrepreneurial Finance, and its relationship with the entrepreneurial venture in its early stages; it will also focus on the theoretical aspect on both the Agency theory and its developments, as well as on the emerging organization that takes into account the evolution of the Startups reality. Finally, we will make a presentation of the different modes of financing Startups. Our report reveals that little work was spent on funding the very beginnings of the entrepreneurial venture. To this end, the Finance business tends to stand out from the corporate finance by different concepts and new issues, including the notions of startup, TPE or ' gazelles', that are frequently used at the expense of the notion of firms or groups.

Mucin-16 Targeted Mesoporous Nano-system for Evaluation of Cervical cancer via Dual-modal Computed Tomography and Ultrasonography

2021 ◽  
Author(s):  
Ali Tarighatnia ◽  
Mohammad Hossein Abdkarimi ◽  
Nader D Nader ◽  
Tayebeh Mehdipour ◽  
Mohammad Reza Fouladi ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Cervical Cancer ◽  
Mesoporous Silica ◽  
Contrast Agents ◽  
Cervical Cancers ◽  
Bismuth Nanoparticles ◽  
Early Stages

Mesoporous silica-coated bismuth nanoparticles (NPs) are dual-modal contrast agents that enable detection and quantization of cervical cancers at early stages using computed tomography (CT) and ultrasonography (US). Herein, the mesoporous...

Sign in / Sign up

Export Citation Format

Share Document