Preparation, development and applications of nanomaterials-review
Journal name: World Journal of Pharmaceutical Research
Original article title: Preparation, development and applications of nanomaterials-review
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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G.S.C. Bose and I. Hatti
World Journal of Pharmaceutical Research:
(An ISO 9001:2015 Certified International Journal)
Full text available for: Preparation, development and applications of nanomaterials-review
Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research
Doi: 10.20959/wjpr201810-12603
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Summary of article contents:
Introduction
Nanotechnology, derived from the Greek word for dwarf, involves manipulating materials at the nanoscale, typically between 1 and 100 nanometers. First conceptualized by physicist Richard Feynman in 1959, it has evolved significantly due to advancements in materials science. Nanomaterials demonstrate unique properties due to their increased surface area and quantum effects, leading to diverse applications in fields including electronics, energy, medicine, and consumer goods. This review explores the preparation, development, and various applications of nanomaterials, highlighting their potential impact across industries.
Significance of Nanoscale Properties
One of the critical concepts in nanotechnology is the unique properties exhibited by nanomaterials at the nanoscale, which differ from their bulk counterparts. These properties emerge primarily due to the increased surface area relative to volume and the dominance of quantum effects. For instance, materials that may be inert at larger scales can exhibit reactivity at the nanoscale. This shift in properties enables the production of materials tailored for specific applications, leveraging phenomena that only become significant when manipulating matter at this scale. Thus, understanding these properties is crucial for the effective application of nanomaterials.
Preparation Techniques for Nanoparticles
The synthesis of nanoparticles is essential for their application in various technologies, and the methods used can significantly influence their size and shape. Nanoparticles can be created through ‘top-down’ and ‘bottom-up’ approaches, with several techniques utilized, including reduction, sol-gel processing, and pyrolysis. The choice of precursors, reducing agents, and stabilizers plays a crucial role in determining the characteristics of the nanoparticles. For instance, the size can be controlled by adjusting the reaction conditions, which is vital for achieving the desired performance in applications such as catalysts, sensors, and pharmaceuticals.
Diverse Applications of Nanomaterials
Nanomaterials find applications across multiple industries due to their customizable properties. In electronics, carbon nanotubes and semiconductor nanocrystals enhance performance and efficiency in devices. In the medical field, nanoparticles enable targeted drug delivery and improved diagnostics, revolutionizing treatment methodologies. The automotive sector utilizes nanotechnology to develop lighter and more efficient parts, while the aerospace industry benefits from advanced composites with improved strength-to-weight ratios. Moreover, applications extend to cosmetics, food packaging, and consumer electronics, illustrating the broad potential of nanotechnology in enhancing product functionality.
Conclusion
Nanotechnology and nanomaterials represent a rapidly evolving field with the potential to transform various industries through innovative solutions and enhanced product performance. Despite the promise and multifaceted applications of nanomaterials, their commercialization requires a thorough understanding of their properties, preparation techniques, and safety considerations. Ongoing research and development, alongside regulatory measures, will be essential in addressing the challenges posed by nanomaterials while maximizing their benefits in technology and society.
FAQ section (important questions/answers):
What is nanotechnology and its origin?
Nanotechnology refers to the manipulation of matter on the nanoscale, typically between 1 and 100 nanometers. The concept was first introduced by physicist Richard Feynman in 1959, who envisioned manipulating materials at the atomic and molecular levels.
What are the unique properties of nanomaterials?
Nanomaterials exhibit different properties than their larger counterparts due to their increased surface area and quantum effects. This change can enhance reactivity, strength, and electronic behavior, making them suitable for various applications across multiple fields.
What are the methods to prepare nanoparticles?
Nanoparticles can be synthesized through various methods, including reduction techniques, sol-gel processing, and pyrolysis. The choice of precursors, reducing agents, and stabilizers plays a crucial role in controlling the size, shape, and properties of the nanoparticles.
What are some applications of nanomaterials in medicine?
Nanomaterials are used for drug delivery, diagnosis, and sensor development. Nanorobots can monitor health parameters and deliver drugs more effectively, enhancing treatment efficacy for conditions like cancer and autoimmune diseases.
How does nanotechnology improve energy efficiency?
Nanotechnology enhances energy sources by improving solar cell efficiency through materials like graphene and using titanium dioxide for hydrogen production from water, significantly contributing to sustainable energy solutions.
What safety concerns surround nanomaterials?
The rapid development of nanomaterials raises safety concerns, including potential toxicity and environmental impacts. Research is ongoing to assess health risks, regulatory measures, and ethical considerations associated with the use of nanotechnology.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Preparation, development and applications of nanomaterials-review”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Surface:
Surface refers to the outermost layer of a material, which plays a vital role in determining the reactivity and properties of nanomaterials. At the nanoscale, increased surface area-to-volume ratio enhances chemical interactions, making surfaces crucial for applications such as catalysis, adsorption, and sensor technologies in nanotechnology.
2) Science (Scientific):
Scientific refers to approaches based on the systematic study of the physical and natural world. Nanotechnology applies scientific principles to innovate and understand materials at the nanoscale, leading to breakthroughs in applications across various fields like electronics, medicine, and materials engineering.
3) Field:
Field denotes a specific area of study or expertise within a broader discipline. In nanotechnology, several fields intersect, such as materials science, chemistry, physics, and engineering. Each field contributes knowledge and techniques essential for advancing nanomaterials development and understanding their behavior in various applications.
4) Glass:
Glass is an amorphous solid material typically made from silica, used for windows, containers, and various optical applications. Nanotechnology enhances glass properties, such as strength, thermal resistance, and self-cleaning capabilities, by integrating nanoparticles like titanium dioxide, which enable functionalization to improve performance and aesthetics.
5) Blood:
Blood is a vital fluid that circulates in the human body, transporting oxygen and nutrients while removing waste products. In nanomedicine, engineered nanoparticles may be employed to enhance drug delivery, diagnose diseases, or monitor health by interacting with blood components, leading to revolutionary advancements in medical therapies.
6) Nanoscience:
Nanoscience is the study of phenomena and manipulation of materials at the nanoscale (1-100 nm). It explores the unique properties that emerge at this scale, contributing to advancements in nanotechnology, where materials are engineered for specific applications in electronics, medicine, and materials science.
7) Silver:
Silver is a chemical element with notable antimicrobial properties. In nanotechnology, silver nanoparticles are utilized for their antibacterial activity in medical devices and food packaging. Their effectiveness lies in their large surface area and unique chemical properties, which enhance their interaction with microbial agents.
8) Food:
Food encompasses the substances consumed for nutritional support. Nanotechnology in food science involves using nanoparticles for flavor enhancement, preservation, and safety. Applications include nanostructured delivery systems for nutrients and the use of nanomaterials in packaging to improve shelf life and prevent microbial contamination.
9) Gold (Golden):
Gold, a precious metal, is used in nanotechnology because of its unique optical and electronic properties. Gold nanoparticles exhibit distinct colors based on their size and shape and are utilized in applications ranging from medical imaging and diagnostics to sensors and drug delivery systems.
10) Salt (Salty):
Salt refers to ionic compounds often used in food preservation, chemical processes, and various industrial applications. In nanotechnology, salt can influence the synthesis of nanoparticles, affecting their morphology and stability. Understanding its role is essential for controlling nanoparticle behavior in various contexts.
11) Drug:
Drugs are substances used for medical treatment, alleviating symptoms or curing diseases. In nanomedicine, nanoparticles are designed for efficient drug delivery, enhancing the bioavailability and targeting of therapeutic agents, thereby improving treatment efficacy and reducing side effects.
12) Antibiotic (Antibacterial):
Antibacterial refers to substances that inhibit bacterial growth or kill bacteria. In nanotechnology, antibacterial nanoparticles, like silver and copper, are integrated into products such as coatings and medical devices to provide surfaces that reduce the risk of infections and promote hygiene.
13) Composite:
A composite is a material composed of two or more distinct substances that retain their individual characteristics. In nanotechnology, composites are engineered to enhance functionality and performance, combining the benefits of nanomaterials with bulk materials for applications in structural, electrical, and thermal domains.
14) Andhra (Amdhra):
Andhra refers to Andhra Pradesh, a state in India known for its educational institutions and research in various scientific fields. The state's focus on science and technology, particularly in nanotechnology and material sciences, contributes to advancements in research and development in nanomaterials.
15) India:
India is a country actively investing in research and development across various scientific fields, including nanotechnology. The nation emphasizes education and innovation, showcasing significant contributions in nanoscience research, which plays a crucial role in addressing health, energy, and environmental challenges.
16) Hair:
Hair is a filamentous biomaterial that grows from follicles found in the skin. At the nanoscale, the properties of hair fibers can be altered using nanotechnology, leading to innovations in hair care products that enhance strength, shine, or protect against environmental damage with nanoparticles.
17) Performance:
Performance refers to how effectively a material or product functions in its intended application. In nanomaterials, their unique properties often lead to improved performance in fields like electronics, medicine, and materials science, enabling breakthrough advancements and greater efficiencies in various technologies.
18) Colouring (Coloring):
Coloring refers to the use of pigments or dyes to impart color to materials. In nanotechnology, nanoparticles are employed as coloring agents due to their distinct optical properties, enabling enhanced color quality and stability in products like glass, cosmetics, and textiles.
19) Disease:
Disease refers to any condition that negatively impacts the normal functioning of an organism. In nanotechnology, advancements focus on understanding and treating diseases more effectively through the use of nanoparticles for targeted drug delivery, enhancing imaging techniques, and enabling new therapeutic approaches.
20) Species:
Species refers to a group of organisms capable of interbreeding. In biological research, understanding the interactions of nanoparticles with different species (including microorganisms) is crucial in gauging their effects, safety, and applications in fields like medicine, agriculture, and environmental science.
21) Cancer:
Cancer is a disease characterized by uncontrolled cell division, leading to tumor formation. Nanotechnology provides new avenues for cancer treatment through targeted drug delivery, aimed at improving the efficacy of therapies while minimizing damage to healthy tissues, paving the way for more personalized approaches.
22) Reason:
Reason denotes the underlying rationale or explanation for phenomena. In nanotechnology, understanding the reasons behind the unique properties of materials at the nanoscale, such as increased reactivity or altered electrical characteristics, is fundamental for designing and optimizing nanomaterial applications across various industries.
23) Water:
Water is a vital molecule for life and a solvent for countless chemical reactions. In nanotechnology, its role is significant in processes such as nanomaterial synthesis and environmental remediation, where nanoparticles can be used to purify water or detect contaminants on a molecular scale.
24) Table:
Table refers to a systematic arrangement of information, typically presented in rows and columns. Tables in scientific literature often summarize experimental results, materials properties, or the characteristics of different nanomaterials, facilitating easy comparison and understanding of their applications and effects.
25) Surrounding:
Surrounding pertains to the environment or context around an object or material. In nanotechnology, the surrounding medium influences the behavior and properties of nanoparticles, necessitating thorough investigation to optimize their performance in various applications, including drug delivery and environmental remediation.
26) Measurement:
Measurement is the process of quantifying physical properties using specific units. In nanotechnology, measuring the size, shape, and concentration of nanoparticles is crucial for understanding their behavior and ensuring reproducibility in applications across various fields like medicine, electronics, and materials science.
27) Perception:
Perception refers to the interpretation and understanding of sensory information. In science, how scientists perceive the properties and behaviors of nanomaterials influences research directions and development, guiding innovations and applications in electronics, medicine, and materials design based on a comprehensive understanding of nanoscale phenomena.
28) Reflecting:
Reflecting refers to the bouncing back of light or energy from a surface. In nanotechnology, engineered materials can be designed to enhance or alter reflective properties, influencing applications in optics, coatings, and energy management to optimize light transmission and absorption in devices.
29) Developing:
Developing denotes the process of creating or improving materials, technologies, or methodologies. In nanotechnology, developing innovative nanomaterials with tailored properties is essential for addressing challenges in various domains, including healthcare, environmental remediation, and electronics, leading to improved performance and functionality.
30) Container:
Container refers to an object used to hold or store materials. In nanotechnology, containers can be designed at the nanoscale for targeted drug delivery, encapsulating active substances and allowing controlled release to enhance therapeutic outcomes in medical applications.
31) Splitting:
Splitting refers to the division of a substance into smaller parts. In nanotechnology, splitting water molecules through photocatalysis using nanoparticles can efficiently produce hydrogen fuel, which serves as an alternative energy source, showcasing the potential of nanomaterials in sustainable energy solutions.
32) Stiffness:
Stiffness is a measure of a material's resistance to deformation under applied force. In nanocomposites, incorporating nanoparticles can significantly enhance stiffness without adding weight, making them ideal for applications in aerospace, automotive, and construction, where strength-to-weight ratio is critical.
33) Toxicity:
Toxicity refers to the degree to which a substance can harm organisms. In nanotechnology, assessing the toxicity of nanoparticles is essential for ensuring safety in applications, particularly in medicine and consumer products, to mitigate risks to human health and the environment.
34) Quality:
Quality refers to the standard of something as measured against other things. In nanotechnology, ensuring the quality of nanomaterials is vital, as their properties and performance can significantly affect technological applications, necessitating strict controls and evaluation during manufacturing and characterization.
35) Nature:
Nature encompasses the physical world and its organisms, governed by natural laws. Understanding the nature of materials at the nanoscale is fundamental in nanotechnology, revealing how phenomena occur and influencing developments in materials science, biology, and chemistry.
36) Hatti:
Hatti denotes a contributor to the scientific discourse in nanotechnology and materials science research. As a co-author, Hatti collaborates in exploring the properties, applications, and implications of nanomaterials, helping advance knowledge in the field and contribute to innovative technological solutions.
37) Sugar:
Sugar, a carbohydrate, plays a critical role in biological processes as a primary energy source. In nanotechnology, nanoparticles can influence sugar analysis or targeted delivery within the body, enhancing medical diagnostics or treatments related to metabolic conditions and diseases like diabetes.
38) Study (Studying):
Study refers to the detailed examination and analysis of a subject or phenomenon. In nanotechnology, rigorous studies are conducted to understand the characteristics and behaviors of nanomaterials, tapping into their properties for innovations in electronics, health, and materials science.
39) Hand:
Hand refers to the organ for manipulation and interaction in humans. In the context of nanotechnology, technologies may be developed for human use that enhance dexterity or functionality in surgical procedures, diagnostics, or testing through the incorporation of nanoscale devices.
40) Ruby:
Ruby refers to a gemstone often used in decorative applications. In nanotechnology, rubies and similar materials can exhibit unique optical properties at the nanoscale, potentially leading to innovations in photonics and advanced materials for various electronic and optical applications.
41) Qian:
Qian refers to a contributor in nanotechnology research. Collaborating on advancements in nanomaterials science, Qian's work focuses on unique properties and applications of nanoparticles, providing insights and fostering innovations within the community of scientists dedicated to material advancements.
42) Life:
Life denotes the state of being alive, characterized by growth, reproduction, and response to stimuli. In nanotechnology, the impact on life, particularly in healthcare through drug delivery systems, diagnostics, and enhancing quality of life through technology, highlights the transformative potential of nanoscale innovations.
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