Ethylenediamine series as additives to control the morphology of magnetite nanoparticles

Norfolk, Laura; Kapusta, Klaudia; Cooke, David J.; Staniland, Sarah S.

doi:10.1039/d1gc01539g

Cited by 10 publications

(18 citation statements)

References 63 publications

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“…The development approach for discovery to market used for BIS (as shown in Figure ) was also applied successfully to bioinspired magnetite materials, , which in turn illustrates its wider applicability. Related to this was the establishment of a test bed for the rapid prototyping and scale-up of new nanomaterials.…”

Section: Discussionmentioning

confidence: 99%

“…(1) first quantitative and systematic investigation of synthesis−product relationships, and associated method development, (2) extensive chemical and process development, including the main reaction step and an improved mild purification, (3) first structured investigation of mixing effects, revealing which specific aspects are affected by scale-up, (4) confirmation of the proposed multistep formation process, which is mediated by charge-matching and found to be supplemented by secondary interactions not previously detected or anticipated, (5) development and documentation of protocols for preparation of a broad range of functionalized and encapsulated silica materials, (6) demonstration of scale-up to 40 L leading to provision of larger scale material samples, unlocking new application research, and (7) continued industrial engagement and market research, leading to identification and investigation of priority sectors and products. The development approach for discovery to market used for BIS (as shown in Figure 1) was also applied successfully to bioinspired magnetite materials, 54,55 which in turn illustrates its wider applicability. Related to this was the establishment of a test bed for the rapid prototyping and scale-up of new nanomaterials.…”

Section: ■ Summary and Outlookmentioning

confidence: 95%

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Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Pilling

Patwardhan

2022

ACS Sustainable Chem. Eng.

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Global specialty silica production is over 3 million tonnes per annum with diverse applications across sectors and an increasing demand for more complex material structures and surface chemistries. Commercial manufacturing of high-value silica nanomaterials is energy and resource intensive. In order to meet market needs and mitigate environmental impacts, new synthesis methods for these porous materials are required. The development of the bioinspired silica (BIS) product system, which is the focus of this review, provides a potential solution to this challenge. BIS is a versatile and greener route with the prospect of good scalability, attractive process economics and well controlled product materials. The potential of the system lies not only in its provision of specific lead materials but also, as itself, a rich design-space for the flexible and potentially predictive design of diverse sustainable silica nanomaterials. Realizing the potential of this design space, requires an integrative mind-set, which enables parallel and responsive progression of multiple and dependent research strands, according to need, opportunities, and emergent knowledge. Specifically, this requires development of detailed understanding of (i) the pathways and extent of material diversity and control, (ii) the influences and mechanisms of scale-up, and (iii) performance, economic and environmental characteristics and sensitivities. Crucially, these need to be developed for the system overall, which sits in contrast to a more traditional research approach, which focuses initially on the discovery of specific material leads at the laboratory scale, leaving scale-up, commercialization, and, potentially, pathway understanding to be considered as distinctly separate concerns. The intention of this review is to present important recent advances made in the field of BIS. Specifically, advances made along three research themes will be discussed: (a) particle formation pathways, (b) product design, and (c) scale-up and manufacture. These advances include first quantitative investigation of synthesis-product relationships, first structured investigation of mixing effects, preparation of a broad range of functionalized and encapsulated silica materials and continued industrial engagement and market research. We identify future challenges and provide an important foundation for the development of new research avenues. These include the need to develop comprehensive and predictive product design models, to understand markets in terms of product cost, performance and environmental considerations, and to develop capabilities enabling rapid prototyping and scale-up of desired nanomaterials.

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Section: Discussionmentioning

confidence: 99%

Section: ■ Summary and Outlookmentioning

confidence: 95%

Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Pilling

Patwardhan

2022

ACS Sustainable Chem. Eng.

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“…The role of these additives may be to regulate the solubility of reagents, modify the availability of active components involved in synthesis (through complexation with ions, organic molecules, or in specific sites on the nanomaterial surface), or participate in redox reactions. For example, ethylene diamines can be used to control the morphology of magnetite nanoparticles by selectively binding to the octahedral [ 111 ] facet without affecting their size [ 13 ]. By appropriately selecting the additives, numerous modifications have been accomplished enabling the synthesis of nanomaterials with a wide range of structures and properties [ 10 , 12 , 14 ].…”

Section: Principles Of Analyte-mediated Control Of Nanomaterialsmentioning

confidence: 99%

Analyte-mediated formation and growth of nanoparticles for the development of chemical sensors and biosensors

2022

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The cornerstone of nanomaterial-based sensing systems is the synthesis of nanoparticles with appropriate surface functionalization that ensures their stability and determines their reactivity with organic or inorganic analytes. To accomplish these requirements, various compounds are used as additives or growth factors to regulate the properties of the synthesized nanoparticles and their reactivity with the target analytes. A different rationale is to use the target analytes as additives or growth agents to control the formation and properties of nanoparticles. The main difference is that the analyte recognition event occurs before or during the formation of nanoparticles and it is based on the reactivity of the analytes with the precursor materials of the nanoparticles (e.g., metal ions, reducing agents, and coatings). The transition from the ionic (or molecular) state of the precursor materials to ordered nanostructured assemblies is used for sensing and signal transduction for the qualitative detection and the quantitative determination of the target analytes, respectively. This review focuses on assays that are based on analyte-mediated regulation of nanoparticles’ formation and differentiate them from standard nanoparticle-based assays which rely on pre-synthesized nanoparticles. Firstly, the principles of analyte-mediated nanomaterial sensors are described and then they are discussed with emphasis on the sensing strategies, the signal transduction mechanisms, and their applications. Finally, the main advantages, as well as the limitations of this approach, are discussed and compared with assays that rely on pre-synthesized nanoparticles in order to highlight the major advances accomplished with this type of nano-sensors and elucidate challenges and opportunities for further evolving new nano-sensing strategies. Graphical abstract

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“…Bioinspired synthesis seeks to replicate these highly efficient biological mechanisms by designing synthetic molecules that can enable silica synthesis under mild conditions while allowing control of the structural and functional properties of nanostructured products. 19 − 21 This bioinspired approach has also proven promising for other industrially desirable materials including titania, 22 magnetite, 23 and zinc oxide nanoparticles. 24 Bioinspired synthesis has been shown to produce a pure silica product of tunable nanostructure at room temperature.…”

Section: Introductionmentioning

confidence: 99%

“…An interesting contrast can be found when comparing the harsh synthesis conditions of mesoporous silicas and the natural occurrence of complex porous structures in biosilica, , which takes place under mild conditions such as room temperature, ambient pressure, and aqueous media. Bioinspired synthesis seeks to replicate these highly efficient biological mechanisms by designing synthetic molecules that can enable silica synthesis under mild conditions while allowing control of the structural and functional properties of nanostructured products. − This bioinspired approach has also proven promising for other industrially desirable materials including titania, magnetite, and zinc oxide nanoparticles . Bioinspired synthesis has been shown to produce a pure silica product of tunable nanostructure at room temperature .…”

Section: Introductionmentioning

confidence: 99%

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

Brambila

Boyd

Keegan

et al. 2022

ACS Sustainable Chem. Eng.

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To answer questions surrounding the sustainability of silica production, MilliporeSigma’s DOZN 2.0 Green Chemistry Evaluator was employed as it provides quantitative values based on the 12 principles of Green Chemistry. As a first study using DOZN 2.0 to evaluate the greenness of nanomaterials, a range of silica types were considered and their greenness scores compared. These included low- and high-value silicas, both commercial and emerging, such as precipitated, gel, fumed, colloidal, mesoporous, and bioinspired silicas. When surveying these different types of silicas, it became clear that while low value silicas have excellent greenness scores, high-value silicas perform poorly on this scale. This highlighted the tension between high-value silicas that are desired for emerging markets and the sustainability of their synthesis. The calculations were able to quantify the issues pertaining to the energy-intensive reactions and subsequent removal of soft templates for the sol–gel processes. The importance of avoiding problematic solvents during processes and particularly releasing them as waste was identified. The calculations were also able to compare the amount of waste generated as well as their hazardous nature. The effects of synthesis conditions on greenness scores were also investigated in order to better understand the relationship between the production process and their sustainability.

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Ethylenediamine series as additives to control the morphology of magnetite nanoparticles

Abstract: Magnetite nanoparticles play a key role in nano-industry, with key importance in the developing nanomedicine sector. Such particles must be homogeneous, with a consistent shape and size, due to the...

Cited by 10 publications

References 63 publications

Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Recent Advances in Enabling Green Manufacture of Functional Nanomaterials: A Case Study of Bioinspired Silica

Analyte-mediated formation and growth of nanoparticles for the development of chemical sensors and biosensors

A Comparison of Environmental Impact of Various Silicas Using a Green Chemistry Evaluator

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