Current Nanoscience最新文献_第9页

Synthesis and antibacterial activity of ultrasmall silver nanoparticles by pulsed laser ablation in deionized water 在去离子水中脉冲激光烧蚀制备超小银纳米颗粒及其抗菌活性

4区材料科学

Current Nanoscience Pub Date : 2023-08-31 DOI: 10.2174/1573413719666230831152658

Sarwin Yaseen Hussein, Tariq Abdul Hameed Abbas

{"title":"Synthesis and antibacterial activity of ultrasmall silver nanoparticles by pulsed laser ablation in deionized water","authors":"Sarwin Yaseen Hussein, Tariq Abdul Hameed Abbas","doi":"10.2174/1573413719666230831152658","DOIUrl":"https://doi.org/10.2174/1573413719666230831152658","url":null,"abstract":"Background: The main objective of this work is the synthesis and evaluation of silver nanoparticles (Ag NPs) by using pulsed laser ablation of a silver (Ag) target in deionized water and examining their antibacterial activity. Methods: Colloidal solutions of silver nanoparticles were prepared with different pulsed laser energies (620, 880, and 1000) mJ of wavelength 1064 nm and frequency 10 Hz. To determine their structure, optical, morphology, elemental composition, and infrared spectra, the synthesized Ag NPs were characterized using various high-throughput analytical techniques such as (UV-Vis) spectroscopy, transmission electron microgram (TEM), electron dispersive X-ray spectroscopy (EDX), Fourier transform infrared (FTIR) spectra, and Zeta potential. Results: The results show that the properties of synthesized Ag NPs depend much more on the laser energy. The laser energy can be used to control the properties of the prepared nanoparticles. Uniform distributions of spherical ultrasmall Ag NPs with an average size of (3) nm were obtained suspended in deionized water, which is the most effective size for antibacterial activity. However, the result indicated that the ablated Ag NPs were stable for 4 months in deionized water. The antibacterial activity of the colloidal solution of synthesized Ag NPs against Gram-negative Escherichia coli (E. coli) and Gram-positive Staphylococcus aureus (S. aureus) bacteria was then examined using the agar-well diffusion method. Conclusion: It was found that the prepared nanoparticles exhibited strong activity against E. coli and S. aureus bacteria growth. The average zones of inhibition of Ag NPs were found to be about (26) m¬¬¬¬¬¬m for E. coli and (32) mm for S. aureus bacteria.","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135890524","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}

引用次数: 0

Fabrication of graphene-based ammonia sensors: a review 石墨烯基氨传感器的制备研究进展

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-08-29 DOI: 10.2174/1573413719666230829142724

Ke Xu, Wei Zheng

引用次数: 0

Synthesis and Characterization of Carbon Nano Sphere-doped Gd: Alpha Sb2O4Nanostructure for High-Performance Energy Storage Applications 碳纳米球掺杂Gd: Alpha sb2o4纳米结构的合成与表征

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-20 DOI: 10.2174/1573413719666230720161905

W. Nabgan, V. Adimule, Parashuram Laxminarayana, Kalpana Sharma, Nidhi Manhas

{"title":"Synthesis and Characterization of Carbon Nano Sphere-doped Gd: Alpha Sb2O4Nanostructure for High-Performance Energy Storage Applications","authors":"W. Nabgan, V. Adimule, Parashuram Laxminarayana, Kalpana Sharma, Nidhi Manhas","doi":"10.2174/1573413719666230720161905","DOIUrl":"https://doi.org/10.2174/1573413719666230720161905","url":null,"abstract":"\u0000\u0000To enhance the super capacitive properties of nanocomposites, the effective method is to combine carbon nanospheres with mesoporous structures with Gd3+:α-Sb2O4 inorganic nanocomposites (NC) to form hybrid electrodes. An as-prepared hybrid electrode material possesses increased energy density, high rate of reversibility and cyclic stability when incorporated in electrochemical cyclic voltammetric studies.\u0000\u0000\u0000\u0000In the present investigation, various wt % of C-nanospheres (Cx) (5 %, 10% and 20%) were decorated over Gd3+: α-Sb2O4 nanocomposites and were synthesized by coprecipitation method. XRD, SEM, EDX, UV-visible, and XPS are only a few of the analytical techniques used to describe the as-prepared hybrid nanocomposites. Electrochemical cyclic voltammetry was carried out in a 6M KOH solution, three-electrode system.\u0000\u0000\u0000\u0000The crystal structure and morphology of Cx: Gd3+@ α-Sb2O4 NC showed a mixed hexagonal phase and agglomerated tiny irregularly shaped morphology that appeared as the Cx concentration increased. Redshift in optical absorption peak appeared (near UV-edge), and the optical band gap (Eg) value increased from 3.53 eV to 3.65 eV. The electrochemical supercapacitor showed the highest specific capacitance of 989 F/g at the current density of 1 A/g for C20%:Gd3+@α-Sb2O4 NC compared with Cx:Gd3+@α-Sb2O4 (x = 5 % and 10 %) and undoped Gd3+:α-Sb2O4 NC. The change in phase angle and Rs value of 1.98 was attributed to the ideal supercapacitor properties. The cyclic stability after 5000 cycles with 79.71 % capacitive retention was exhibited by C20%:Gd3+@α-Sb2O4 NC.\u0000\u0000\u0000\u0000The present research introduces ease of synthesis of hybrid electrode materials possessing high active surface area, increased energy density, high cyclic stability, and reversibility in an aqueous solution.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43375860","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}

引用次数: 0

Recent advances in the nanotechnology-based applications of essential oils 基于纳米技术的精油应用的最新进展

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-18 DOI: 10.2174/1573413719666230718122527

Feng He, Lei Zhang, Jingyi Lin, Can Zhang, Sijing Hu, Yang Dong, Guanwei Fan

引用次数: 0

Virus-like Particles for Disease Diagnosis and Drug Delivery Applications 用于疾病诊断和药物递送应用的病毒样颗粒

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-17 DOI: 10.2174/1573413719666230717123734

R. Malviya, Rishav Sharma

{"title":"Virus-like Particles for Disease Diagnosis and Drug Delivery Applications","authors":"R. Malviya, Rishav Sharma","doi":"10.2174/1573413719666230717123734","DOIUrl":"https://doi.org/10.2174/1573413719666230717123734","url":null,"abstract":"\u0000\u0000Virus-like particles (VLPs) are nanoscale, self-assembling cage structures made out of proteins with practical uses in biomedicine. They might be used to create better vaccinations, imaging equipment, gene and drug therapy delivery systems, and in vitro diagnostic equipment. VLPs are nanostructures that might be used in medicine, immunization, and diagnostics, among other areas. Many VLPs-based vaccines are now in use for the treatment of infectious diseases, and many more are on their way to clinical testing thanks to recent advancements in biomedical engineering. Although VLPs exhibit promising qualities in terms of efficacy, safety, and diversity, they may become more widely used in the future. Vaccines based on virus-like particles (VLPs) might serve as an effective addition to current immunization strategies for the prevention and treatment of emerging infectious diseases. The growing field of healthcare prevention has become increasingly interested in VLPs, leading to the discovery of various VLP-based candidate vaccines for vaccination towards a wide range of infectious pathogens, one of the most recent that has been developed is the vaccine against SARS-CoV-2, the effectiveness of that is now being tested. VLPs can elicit both antibody and cell-mediated immune responses, unlike standard inactivated viral vaccines. However, several problems persist with this surface display method and will need fixing in the future. VLPs-based medicinal delivery, nanoreactors for treatment, and imaging systems are being developed with promising results. The latest developments in the generation and fabrication of VLPs involve explorations of several expression systems for their creation and their application as vaccines for the avoidance of infectious diseases and malignancies. This manuscript offers the most advanced perspective on biomedical applications based on VLPs, as well as details innovative methods for manufacturing, functionalization, and delivery of VLPs.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41385212","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}

引用次数: 0

The Role Of Biosensors In Detection Of SARS-Cov-2: State-Of-The-Art And Future Prospects 生物传感器在SARS-Cov-2检测中的作用:现状和未来展望

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-14 DOI: 10.2174/1573413719666230714121859

A. Prabhakar, Deepti Verma, Nimisha Roy, Abhipsha Khadanga, Amar Dhwaj

{"title":"The Role Of Biosensors In Detection Of SARS-Cov-2: State-Of-The-Art And Future Prospects","authors":"A. Prabhakar, Deepti Verma, Nimisha Roy, Abhipsha Khadanga, Amar Dhwaj","doi":"10.2174/1573413719666230714121859","DOIUrl":"https://doi.org/10.2174/1573413719666230714121859","url":null,"abstract":"\u0000\u0000The world is fighting a pandemic so grave that perhaps it has never been witnessed before; COVID-19 is caused by the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). As of August 31st, 2022, the WHO declared the total number of confirmed cases was 599,825,400, with 6,469,458 confirmed deaths from 223 countries under the scourge of this deadly virus. The SARS-CoV-2 is a β-coronavirus, which is an enveloped non-segmented positive-sense RNA virus. It is a close relative of the SARS and MERS viruses and has probably entered humans through bats. Human-to-human transmission is very rapid. People in contact with the patient or even the carriers became infected, leading to a widespread chain of contamination. We are presenting a mini-review on the role of biosensors in detecting SARS-CoV-2. Biosensors have been used for a very long time for viral detection and can be utilized for the prompt detection of the novel coronavirus. This article aims to provide a mini-review on the application of biosensors for the detection of the novel coronavirus with a focus on cost-effective paper-based sensors, nanobiosensors, Field effect transistors (FETs), and lab-on-chip integrated platforms.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47780617","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}

引用次数: 0

Dermal Nanomedicines: Recent Progress and Advances 皮肤纳米药物:最新进展和进展

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-07-01 DOI: 10.2174/157341371904230330113735

Sunil Kumar, R. Rao

引用次数: 0

Metal and Metal Oxide Nanoparticles as Agents Against Human Infectious Viruses 金属和金属氧化物纳米颗粒作为抗人类传染性病毒的药剂

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-06-08 DOI: 10.2174/1573413719666230608112014

A. Tavakoli, Malihe Hamidzade, Saeed Motlaghzadeh, P. Khales, Danesh Aminpanah, S. Minaeian, S. M. Hosseini-Hosseinabad

引用次数: 0

A Review on Solid Lipid Nanoparticles as Nano Drug Delivery Transporters 固体脂质纳米颗粒作为纳米药物传递载体的研究进展

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-06-05 DOI: 10.2174/1573413719666230605120659

Smita D More, Anjali S Wadhokar, Rushali S Bedjawalge

引用次数: 0

The Pharmaceutical Role of Silver Nanoparticles in Treating Multidrug-Resistant Bacteria and Biofilms 银纳米粒子在治疗多药耐药细菌和生物膜中的药物作用

IF 1.5 4区材料科学

Current Nanoscience Pub Date : 2023-05-25 DOI: 10.2174/1573413719666230525093326

Majed M Masadeh, Ayham R. Alnsour, Rawand M. Daghmash, K. Alzoubi, Majd M Masadeh, Nayef H. Batayneh, Hala H. Batayneh, Mustafa S. Al-Ogaidi

{"title":"The Pharmaceutical Role of Silver Nanoparticles in Treating Multidrug-Resistant Bacteria and Biofilms","authors":"Majed M Masadeh, Ayham R. Alnsour, Rawand M. Daghmash, K. Alzoubi, Majd M Masadeh, Nayef H. Batayneh, Hala H. Batayneh, Mustafa S. Al-Ogaidi","doi":"10.2174/1573413719666230525093326","DOIUrl":"https://doi.org/10.2174/1573413719666230525093326","url":null,"abstract":"\u0000\u0000According to the WHO, antimicrobial resistance has recently become worrisome and constitutes an international public health crisis. The advent of multidrug-resistant bacteria has been implicated in the rise in morbidity and death caused by microbial diseases. However, the lack of new and effective antibiotics has been associated with the emergence of drug resistance. This has resulted in worldwide endeavors to advance innovative drugs with higher efficiency and more sophisticated drug delivery technologies. In addition, the utilization of nanoparticles as innovative biological substances is considered a worldwide issue of interest. \u0000Nanoparticles have the potential to become a vital and viable treatment alternative for treating drug-resistant illnesses. Nanoparticles contain metallic substances and their oxides, which have the highest possibility among all nanoparticles and have piqued the curiosity of numerous experts. Furthermore, using silver nanoparticles in photothermal treatment has attracted much interest.\u0000\u0000\u0000\u0000This review includes knowledge about the problems of drug resistance and the mechanism of action of silver nanoparticles.\u0000\u0000\u0000\u0000This review comprehensively assesses the current discoveries for using silver nanoparticles as antimicrobial medicines in infections caused by resistant microorganisms. Also being explored as nanomaterials that can react with light (photothermal treatment) to destroy bacteria and promote improved medication administration and release. Furthermore, it focuses on the synergy between nanoparticles with antimicrobial action and other nanoparticles, microbial adaptation mechanisms to nanoparticles, and existing obstacles and future possibilities that were thoroughly examined.\u0000","PeriodicalId":10827,"journal":{"name":"Current Nanoscience","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48284376","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}

引用次数: 0