Recent Patents on Nanotechnology最新文献

{"title":"Parametric Analysis of Indium Gallium Arsenide Wafer-based Thin Body (5 nm) Double-gate MOSFETs for Hybrid RF Applications.","authors":"Pattunnarajam Paramasivam, Naveenbalaji Gowthaman, Viranjay M Srivastava","doi":"10.2174/1872210517666230602095347","DOIUrl":"10.2174/1872210517666230602095347","url":null,"abstract":"<p><strong>Introduction: </strong>The electrical behavior of a high-performance Indium Gallium Arsenide (In- GaAs) wafer-based n-type Double-Gate (DG) MOSFET with a gate length (L_G1= L_G2) of 2 nm was analyzed. The relationship of channel length, gate length, top and bottom gate oxide layer thickness, a gate oxide material, and the rectangular wafer with upgraded structural characteristics and the parameters, such as switch current ratio (I_ON/IOFF) and transconductance (G_m) was analyzed for hybrid RF applications.</p><p><strong>Methods: </strong>This work was carried out at 300 K utilizing a Non-Equilibrium Green Function (NEGF) mechanism for the proposed DG MOSFET architecture with La₂O₃(EOT=1 nm) as gate dielectric oxide and source-drain device length (L_SD) of 45 nm. It resulted in a maximum drain current (ID_max) of 4.52 mA, where the drain-source voltage (V_DS) varied between 0 V and 0.5 V at the fixed gate to source voltage (V_GS) = 0.5 V. The ON current(I_ON), leakage current (I_OFF), and (I_ON/IOFF) switching current ratios of 1.56 mA, 8.49×10^-6 μA, and 18.3×10⁷ μA were obtained when the gate to source voltage (V_GS) varied between 0 and 0.5 V at fixed drain-source voltage (V_DS)=0.5V.</p><p><strong>Results: </strong>The simulated result showed the values of maximum current density (J_max), one and twodimensional electron density (N_1D and N_2D), electron mobility (μ_n), transconductance (G_m), and Subthreshold Slope (SS) are 52.4 μA/m², 3.6×10⁷ cm^-1, 11.36×10¹² cm^-2, 1417 cm²V^-1S^-1, 3140 μS/μm, and 178 mV/dec, respectively. The Fermi-Dirac statistics were employed to limit the charge distribution of holes and electrons at a semiconductor-insulator interface. The flat-band voltage (V_FB) of - 0.45 V for the fixed threshold voltage greatly impacted the breakdown voltage. The results were obtained by applying carriers to the channels with the (001) axis perpendicular to the gate oxide. The sub-band energy profile and electron density were well implemented and derived using the Non-Equilibrium Green's Function (NEGF) formalism. Further, a few advantages of the proposed heterostructure-based DG MOSFET structure over the other structures were observed.</p><p><strong>Conclusion: </strong>This proposed patent design, with a reduction in the leakage current characteristics, is mainly suitable for advanced Silicon-based solid-state CMOS devices, Microelectronics, Nanotechnologies, and future-generation device applications.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":" ","pages":"335-349"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10674605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applications of Silver Nanoparticles in Patent Research.","authors":"Ana Paula G B Azevedo, Nathalia Müller, Celso Sant Anna","doi":"10.2174/1872210517666230427155921","DOIUrl":"10.2174/1872210517666230427155921","url":null,"abstract":"<p><strong>Background: </strong>Silver nanoparticles (AgNPs) have been widely applied in research and industrial fields, finding applications in nanomedicine, drug delivery, biomedical devices, electronics, the energy sector, and environmental protection. Patents provide information on the industrial viability of product technologies, and the number of patent documents provides an estimate of the evolution of a specific technological field.</p><p><strong>Aims: </strong>The present work aims to describe the current trends in AgNPs patent applications. In addition, a retrospective study of published patents in Brazil is presented.</p><p><strong>Methods: </strong>Analyses of AgNPs-related patents were conducted using the free platform for patent search Lens® in 2010-2019 and articles published in same period using the Scholar® base. The patent applications and their evolution over time, major depositors and holders, and the main technological areas associated with AgNP applications have been described.</p><p><strong>Results: </strong>China and United States are the major patent applicants for nanotechnologies. The worldwide distribution of publications of journal articles shows that China, India, and the United States are the leading countries in the total number of articles published, in that order.</p><p><strong>Conclusion: </strong>Our study of patent applications and published articles confirmed the growing global increase in new technologies involving NPs and AgNPs, particularly in the biotechnology area, in the fields of medicine and agriculture.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":" ","pages":"361-373"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9711721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research and Progress of Inorganic Infrared Electrochromic Materials and Devices.","authors":"Xinglin Li, Rihui Yao, Muyun Li, Chenxiao Guo, Dongxiang Luo, Jinyao Zhong, Zhuohui Xu, Honglong Ning, Junbiao Peng","doi":"10.2174/1872210517666230330104953","DOIUrl":"10.2174/1872210517666230330104953","url":null,"abstract":"<p><strong>Background: </strong>Electrochromic materials can dynamically change their optical properties (such as transmittance, absorbance, and reflectance under the action of an applied voltage, and their research and application in the visible band have been widely concerned. In recent years, with the continuous development of electrochromic technology, the related research has been gradually extended to the infrared region.</p><p><strong>Objective: </strong>This invited review aims to provide an overview of the current status of several inorganic infrared electrochromic materials, to provide some references for future research, and to promote the research and application of electrochromic technology in the infrared region.</p><p><strong>Methods: </strong>This review summarizes various research results in the field of infrared electrochromic, which includes a detailed literature review and patent search. Starting from the key performance parameters and device structure characteristics of infrared electrochromic devices (ECDs), the research and progress of several types of inorganic infrared electrochromic materials, including metal oxides, plasma nanocrystals, and carbon nanomaterials, are mainly presented, and feasible optimization directions are also discussed.</p><p><strong>Conclusion: </strong>We believe that the potential of these materials for civilian and military applications, for example, infrared electrochromic smart windows, infrared stealth/disguise, and thermal control of spacecraft, can be fully exploited by optimizing the materials and their devices to improve their performance.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":" ","pages":"117-129"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9233843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advancements in Novel Formulations of Anti-psoriatic Agents for Effective Delivery: Clinical Importance and Patent Survey.","authors":"Nikhil Dadwal, Balak Das Kurmi, Dilpreet Singh, Amrinder Singh","doi":"10.2174/1872210517666230601124620","DOIUrl":"10.2174/1872210517666230601124620","url":null,"abstract":"<p><strong>Background: </strong>An autoimmune-mediated dermatological ailment featuring recurrent episodes is acknowledged as psoriasis. Around the world, 2-3% of people suffer from this autoimmune skin condition.</p><p><strong>Objectives: </strong>The primary goal of the current review is to analyse and determine the effectiveness of conventional and emerging nano technological strategies to alleviate psoriasis and discuss future perspectives.</p><p><strong>Methods: </strong>A thorough search of numerous electronic databases, including Science Direct, Scopus, Google Scholar, Clinical Trials, Google Patents, Research Gate, and PubMed, yielded all the data used in this review paper about the management of psoriasis <i>via</i> various anti-psoriatic agent and nanotechnology approaches. Keywords such as topical, liposomes, niosomes, micro needles, clinical trials, patents, pathogenesis, biosimilars, cytokines, and other pertinent words were investigated.</p><p><strong>Results: </strong>Nano technological approaches are gaining prominence since they enable targeted delivery, rapid onset of action with limited systemic exposure. Researchers have investigated innovative, alternative therapeutic approaches that are both secure and efficient for treating psoriatic conditions. Further, the potential role of numerous psoriatic conventional therapies has been explored. The patents granted or in process to address psoriasis <i>via</i> topical route have been well explored. Modern nanotechnology has made it possible for pharmaceuticals to be delivered with improved physical, chemical, pharmacokinetic, and pharmacodynamic qualities. Despite extensive research complete cure for psoriasis is hampered.</p><p><strong>Conclusion: </strong>Relying on the extensive literature review, it can be inferred that nanoparticles based novel delivery strategies have the possibility of enhancing the pharmacological activity and eliminating or resolving problems associated with this ailment. The different drug delivery systems available for the treatment of psoriasis along with the clinical trials in different stages, patents in process and granted, the commercialized status of therapeutic molecules, and the future of research in this area have been thoroughly reviewed.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":" ","pages":"259-277"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9553904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An Overview of Current Progress and Challenges in Brain Cancer Therapy Using Advanced Nanoparticles.","authors":"Mahima Chauhan, Rahul Pratap Singh, Sonali, Ghazala Zia, Saurabh Shekhar, Bhavna Yadav, Vandana Garg, Rohit Dutt","doi":"10.2174/1872210517666230815105031","DOIUrl":"10.2174/1872210517666230815105031","url":null,"abstract":"<p><p>Brain tumors pose significant challenges in terms of complete cure and early-stage prognosis. The complexity of brain tumors, including their location, infiltrative nature, and intricate tumor microenvironment (TME), contributes to the difficulties in achieving a complete cure. The primary objective of brain cancer therapy is to effectively treat brain tumors and improve the patient's quality of life. Nanoparticles (NPs) have emerged as promising tools in this regard. They can be designed to deliver therapeutic drugs to the brain tumor site while also incorporating imaging agents. The NPs with the 10-200 nm range can cross the blood-brain barrier (BBB) and blood-brain tumor barrier (BBTB) and facilitate drug bioavailability. NPs can be designed by several methods to improve the pharmaceutical and pharmacological aspects of encapsulated therapeutic agents. NPs can be developed in various dosage forms to suit different administration routes in brain cancer therapy. The unique properties and versatility of NPs make them essential tools in the fight against brain tumors, offering new opportunities to improve patient outcomes and care. Having the ability to target brain tumors directly, overcome the BBB, and minimize systemic side effects makes NPs valuable tools in improving patient outcomes and care. The review highlights the challenges associated with brain tumor treatment and emphasizes the importance of early detection and diagnosis. The use of NPs for drug delivery and imaging in brain tumors is a promising approach to improving patient outcomes and quality of life. The versatility and unique properties of NPs make them valuable tools in the fight against brain tumors, and innovative NP-related patents have the potential to revolutionize healthcare.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":"1 1","pages":"295-304"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42362942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Complete Sojourn of Current Trends in Gastro-retentive Drug Delivery System: Recent Advances and Patent Survey.","authors":"Abhisek Dey, Amrinder Singh, Balak Das Kurmi, Dilpreet Singh","doi":"10.2174/1872210517666230331083346","DOIUrl":"10.2174/1872210517666230331083346","url":null,"abstract":"<p><p>The current work aims to provide a complete sojourn on gastro-retentive drug delivery system (GRDDS) along with formulation methods, polymer selection, and in vitro/ in vivo challenges with finished dosage forms. Ideally, a biopharmaceutical-hindered drug has a rapid clearance and erratic bioavailability due to its low aqueous solubility and permeability. Additionally, it also suffers from high first-pass metabolism and pre-systemic gut wall clearance. Gastro-retentive drug delivery systems have become an emerging technology where newer methodologies and scientific approaches have been used to provide the controlled release of drugs and provide a protective mechanism in the stomach. By the virtue of utilizing GRDDS as a dosage form, these formulations increase Gastroretention time (GRT) which prolongs the controlled release of the drug in the dosage form. GRDDS contribute to increased drug bioavailability and targeting at a site of action, which enhances therapeutic action and offers significant patient compliance. Furthermore, the present work also highlighted the critical role of polymers in favoring drug retention across GIT with the mechanism of gastro-retention and recommended concentration ranges. The emerging technology is also highlighted by the approved drug products and patented formulations in the recent decade which is depicted in a justified manner. GRDDS formulations have demonstrated clinical efficacy, which is supported by a compilation of patents for cutting-edge innovations in dosage forms that can be held in the stomach for an extended period of time.</p>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":" ","pages":"190-206"},"PeriodicalIF":2.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9233841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Emerging Treatment Options of Pluronic in Designing Colloidal Nano and Microcarriers Carriers for Various Therapies","authors":"Ravinder Verma, Laxmi Rani, Sweta Kamboj, Rohit Kamboj, Tanu Kamboj, Shailendra Bhatt","doi":"10.2174/0118722105255391231018112747","DOIUrl":"https://doi.org/10.2174/0118722105255391231018112747","url":null,"abstract":"Poloxamers, commonly known as Pluronics, are a special family of synthetic tri-block copolymers with a core structure made of hydrophobic poly (propylene oxide) chains sandwiched by two hydrophilic poly (ethylene oxide) chains. It is possible to modify the mechanical, bioactive, and microstructural characteristics of Pluronics to simulate the behavior of different types of tissues. Additionally, they are auspicious drug carriers with the capacity to increase therapeutic agent availability and to design nano-drug formulations for various ailments. The nanoformulation composed of Pluronics is more susceptible to cancer cells due to their amphiphilic nature and feature of selfassembling into micelles. Today's expanding poloxamer research is creating new hopes that increase the possibility of new remedies for a brand-new nanomedicine age treatment. This article provides a concise overview of the classification, grading, and attributes of drug delivery systems (DDSs) as well as the potential for Pluronics to create micro and nanocarriers. We subsequently discuss its utility in drug delivery for cancer, gene therapy, anti-infective therapy, antioxidants, anti-diabetic drugs, anti-HIV, Alzheimer's disease, and antimicrobial drugs. This review also highlighted several patented formulations that contain various grades of Pluronics in one or more different ways. The recent findings in fundamental research in the field properly demonstrate the strong interest in these novel pharmaceutical strategies.","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":"116 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135541456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"INVASOMES: New Carriers for Transdermal Delivery of Anticancer Drugs","authors":"Lalit Kumar","doi":"10.2174/0118722105254232230920053519","DOIUrl":"https://doi.org/10.2174/0118722105254232230920053519","url":null,"abstract":"<jats:sec>\u0000<jats:title />\u0000<jats:p />\u0000</jats:sec>","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Comprehensive Review on Recent Advances and Patents of Niosomes","authors":"Sushma Verma, Sakshi Saharawat","doi":"10.2174/0118722105259776231002071218","DOIUrl":"https://doi.org/10.2174/0118722105259776231002071218","url":null,"abstract":"Abstract: Niosomes are novel, self-assembled vesicular carriers that deliver both lipophilic and hydrophilic drugs at the specific site in a targeted way, enhancing bioavailability and extending therapeutic effects. Niosomes are a versatile drug delivery system with a diverse range of applications from gene to brain-targeted delivery and they are more attractive choices than liposomes as they are efficient at biodegrading. Niosome offers several advantages over conventional drug delivery systems, including enhanced stability, and also have gained a lot of focus in natural product delivery in recent years. This review provides a comprehensive view of niosomal research and recent advancements, including classification and fabrication methods, and their role in drug delivery and targeting. The description of the rise in niosomal formulation patents around the world is also elaborated along with the natural product delivery of niosomes which has recently gained significance. Patents on novel preparation, loading, and modification techniques have enhanced the importance of niosome in the pharmaceutical industry.","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136361067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Patent Selections","authors":"","doi":"10.2174/187221051703230215165620","DOIUrl":"https://doi.org/10.2174/187221051703230215165620","url":null,"abstract":"","PeriodicalId":49324,"journal":{"name":"Recent Patents on Nanotechnology","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135736237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}