Next Nanotechnology最新文献_第10页

Continuous production of O2-free enriched CO2 from ambient air using moisture swing sorbents 利用湿平衡吸附剂从环境空气中连续生产不含氧气的富二氧化碳

Next Nanotechnology Pub Date : 2023-09-01 DOI: 10.1016/j.nxnano.2023.100029

Shinta Miyazaki , Masaki Yoshihara , Takashi Toyao , Zen Maeno , Ken-ichi Shimizu

{"title":"Continuous production of O2-free enriched CO2 from ambient air using moisture swing sorbents","authors":"Shinta Miyazaki , Masaki Yoshihara , Takashi Toyao , Zen Maeno , Ken-ichi Shimizu","doi":"10.1016/j.nxnano.2023.100029","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100029","url":null,"abstract":"<div>Herein, we report the production of O2-free CO2 from a CO2/O2/N2 mixture using moisture swing sorbents in two parallel reactors under isothermal conditions, wherein CO2/O2/N2 and H2O/N2 are alternately fed into the reactors. The CO2/O2/N2 mixture was fed into the reactor containing the water-pre-adsorbed metal oxide sorbent to capture CO2. After changing to an H2O/N2 gas mixture, moisture-promoted CO2 desorption took place. Sorbent-screening tests showed that Rb-loaded Al2O3 (Rb/Al2O3) was the most effective sorbent material for this process. Thus, Rb/Al2O3 sorbents with different Rb loadings were tested for continuous CO2 separation using two parallel reactors. Various structural analyses revealed that the highly dispersed Rb(I) species were responsible for CO2 capture/desorption. The formation and desorption of surface carbonates on Rb/Al2O3 under working conditions were then studied using in situ Fourier transform infrared spectroscopy (FTIR) with online gas composition analysis (operando FTIR). Finally, we demonstrate the continuous production of O2-free and ca. 5 times enriched CO2 from ambient air.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000293/pdfft?md5=b6fbd16df4291ac75e45664cb42b189e&pid=1-s2.0-S2949829523000293-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138558958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Triple-bond Raman probes: Expanding molecular imaging in the cell-silent region 三键拉曼探针:扩展细胞沉默区的分子成像

Next Nanotechnology Pub Date : 2023-09-01 DOI: 10.1016/j.nxnano.2023.100022

Rui Wang , Qi Wang , Lei Zhou

{"title":"Triple-bond Raman probes: Expanding molecular imaging in the cell-silent region","authors":"Rui Wang , Qi Wang , Lei Zhou","doi":"10.1016/j.nxnano.2023.100022","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100022","url":null,"abstract":"<div>Molecular imaging has advanced dramatically over the past few decades, providing valuable insights into cellular processes and disease progression. Raman scattering-based imaging techniques have emerged as promising approaches, surpassing the limitations of fluorescence imaging by providing unique molecular fingerprints. However, Raman imaging faces challenges due to interference from cellular background signals. Researchers have developed novel Raman tags with triple-bond moieties to overcome this obstacle, featuring strong and distinct spectral signatures in the cell-silent region. By incorporating these triple-bond Raman tags into molecular imaging probes, signal intensity and specificity are greatly enhanced, enabling the simultaneous detection of multiple biomolecules. This concise review presents a comprehensive overview of recent developments in triple-bond Raman probes for molecular imaging. It covers design principles and strategies, including conjugation effects, isotope editing, end-capping variation, electronic pre-resonance stimulated Raman scattering, and azo-enhanced Raman probes. Next, we discuss the applications of triple-bond Raman probes in various fields, such as biomolecule imaging, organelle imaging, tissue imaging, and drug tracing. Finally, we highlight current challenges and future opportunities in triple-bond Raman probes for molecular imaging.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000220/pdfft?md5=6867d3ec4e8026716cb9778ab5b04ed0&pid=1-s2.0-S2949829523000220-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91987849","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Current updated review on preparation of polymeric nanoparticles for drug delivery and biomedical applications 用于药物传递和生物医学应用的聚合物纳米颗粒制备的最新综述

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100013

Harish Bhardwaj, Rajendra Kumar Jangde

{"title":"Current updated review on preparation of polymeric nanoparticles for drug delivery and biomedical applications","authors":"Harish Bhardwaj, Rajendra Kumar Jangde","doi":"10.1016/j.nxnano.2023.100013","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100013","url":null,"abstract":"<div>Polymers show a vast possibility of chemical modification of novel properties and nanomedicine generation in biomedical fields. Polymeric nanoparticle (PNPs) is commonly used as a drug carrier, they have good biodegradability, biocompatibility, and high drug-loading capacity. PNPs are the broadly used nanocarrier including polymeric micelles, liposomes, dendrimers, polymeric sponges, and colloidal carriers. These NPs also show low toxicity, increased therapeutic effectiveness, improved drug penetration, controlled drug release and enhanced physical and chemical stability. PNPs are widely used as a drug delivery system subsequently they are able to load natural and synthetic agents including, protein, peptides, growth factors, DNAs, mRNA, and drugs. PNPs can be applied via several routes of administration as nasal, oral, intravenous, topical and ocular. PNPs can potentially target specific cells/tissues, NPs are a promising way to increase local drug concentration, decrease toxicity and side effects, and prevent nonspecific interaction. The present review focuses on biodegradable polymers, classifications, PNPs types, method and preparation of PNPs, and biomedical applications in targeted drug delivery and their limitations. This review presents targeted drug delivery for respiratory, cancers, liver cirrhosis, ocular, diabetic wounds, and Alzheimer’s disease.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S294982952300013X/pdfft?md5=3ff8d28d29d0fc8a312812d6fe20b9ee&pid=1-s2.0-S294982952300013X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92047051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nanotechnology in solid state batteries, what’s next? 固态电池中的纳米技术，下一步是什么？

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100011

Yu-Han Zhang , Lin-Rong Wu , Jun Ma , Guanglei Cui

引用次数: 0

Enhancing cancer therapy: The potential of mercaptopurine-based nanomaterials for targeted drug delivery 增强癌症治疗:巯基嘌呤纳米材料用于靶向药物递送的潜力

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100018

Mehrab Pourmadadi , Arsalan Rahmani Ghohrodi , Zeinab Savari , Ehsan Talebi , Iman Ahamdi , Abbas Rahdar , Sadanand Pandey

{"title":"Enhancing cancer therapy: The potential of mercaptopurine-based nanomaterials for targeted drug delivery","authors":"Mehrab Pourmadadi , Arsalan Rahmani Ghohrodi , Zeinab Savari , Ehsan Talebi , Iman Ahamdi , Abbas Rahdar , Sadanand Pandey","doi":"10.1016/j.nxnano.2023.100018","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100018","url":null,"abstract":"<div>6-Mercaptopurine is a medication employed to treat autoimmune illnesses and cancer. However, due to its poor solubility, quick metabolism, and possible side effects, it is not very effective. With advantages like better bioavailability, increased drug stability, and targeted deliveries, nanomaterials have emerged as a promising platform for drug delivery. This article addresses the possibility of treating cancer with nanomaterials based on mercaptopurine. Scientists have investigated a variety of cancer treatments, including the use of mercaptopurine, since the disease is one of the leading causes of death in the globe. The medication has been tested as an adjuvant treatment for colorectal cancer and has been shown to cause remission in patients with acute lymphoblastic leukemia. Due to their capacity to boost drug uptake by cancer cells, protect it from degradation, and lessen toxicity to healthy tissues, nanomaterials like liposomes, dendrimers, and solid lipid nanoparticles have emerged as a potential platform for drug delivery. The use of mercaptopurine-based nanomaterials, including their use with liposomes, dendrimers, and gold nanoparticles, is discussed in several studies reviewed in the piece. This review provides researchers with the latest progress on 6-mercaptopurine loaded nanocarriers and the novel approach of utilizing nanomaterials for targeted delivery of Mercaptopurine in cancer therapy which show great potential as an advanced tool for cancer therapy compared to classic mercaptopurine drug.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000189/pdfft?md5=9bfd8998a1e8f850090a1ceed5b6c98a&pid=1-s2.0-S2949829523000189-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91964102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thin film coating of hydrothermally grown ternary nanocomposites for photocatalytic degradation of environmental pollutants 水热生长三元纳米复合材料光催化降解环境污染物的薄膜涂层

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100016

Suganya Josephine G.A.

{"title":"Thin film coating of hydrothermally grown ternary nanocomposites for photocatalytic degradation of environmental pollutants","authors":"Suganya Josephine G.A.","doi":"10.1016/j.nxnano.2023.100016","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100016","url":null,"abstract":"<div>Environment and pollution have become almost inseparable due to the contamination of each and every sector as a consequence of industrialization. Wastewater treatment using radicals are the best source of oxidizing agents. Since, semiconductor nanomaterials are excellent photocatalysts which produce radicals upon light irradiation. The photocatalyst prepared as nanopowders were investigated by coating them as thin films on glass slide by a spin coating technique as they are better candidates for photocatalytic degradation of persistent organic pollutants (POP). Hydrothermally grown ternary nanocomposite containing ZnO/CeO2/rGO was named as binary metal oxide/rGO (BMON) was found to be in a particle size of less than 100 nm. The XRD and FT-IR analysis proved the crystallinity and M-O stretching in the prepared nanocomposite. The glass slides coated with the BMON (BMON-GS) were studied for their photocatalytic efficiency on the degradation of Orange G dye under solar light irradiation. The prepared was also studied for its reusability and was found to maintain its activity even up to 5 cycles. Hence, it would be a better candidate and highly economical alternative for treatment of industrial wastewater</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000165/pdfft?md5=55982a2e0b8c0a627f6a70e13d0943a0&pid=1-s2.0-S2949829523000165-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92047052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

When surface science meets energy storage technology, what's next? 当表面科学遇上储能技术，下一步是什么?

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100010

Chao Wang, Zhangquan Peng

引用次数: 0

Defect-engineered carbon-confined silver for enhanced CO2 electrocatalytic reduction to CO in acidic media 缺陷工程碳约束银在酸性介质中增强CO2电催化还原为CO

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100014

Biao Zhang , Jinhan Zou , Zhouhui Chen, Wei Yan, Weidong Liu, Chengyuan Dong, Di Cai, Qinghong Zhang, Ye Wang, Shunji Xie

{"title":"Defect-engineered carbon-confined silver for enhanced CO2 electrocatalytic reduction to CO in acidic media","authors":"Biao Zhang , Jinhan Zou , Zhouhui Chen, Wei Yan, Weidong Liu, Chengyuan Dong, Di Cai, Qinghong Zhang, Ye Wang, Shunji Xie","doi":"10.1016/j.nxnano.2023.100014","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100014","url":null,"abstract":"<div>Electrocatalytic CO2 reduction (CO2RR) to carbon monoxide (CO) holds great promise for carbon capture and utilization. Despite the proposal of electrocatalytic CO2RR in acidic media for high-efficiency CO2 conversion, the challenges of low CO selectivity caused by the highly competitive hydrogen evolution reaction and catalyst corrosion have not been adequately addressed. Here, we present a strategy that restricts proton migration and stabilizes key intermediates over a defective carbon layers confined Ag catalyst (Ag@C-d) to enhance the catalytic selectivity and stability for CO2RR in acidic media. Density functional theory simulations first discovered that electron polarization from Ag to vacancy-defective carbon creates the desired electric field at the interface between Ag and defective carbon layers, enabling efficient acidic CO2RR to CO. We synthesized Ag@C-d catalyst and that exhibits exceptional CO Faraday efficiency (FE, >98 %) and activity across a wide range of current densities (50–500 mA cm−2) in an acidic flow cell. At a current density of 500 mA cm−2, the single-pass conversion efficiency of CO2RR to CO can reached 71.5 %, surpassing that of alkaline systems. An excellent operational stability, operating continuously for over 100 h at industrial-scale current density, was also achieved. In a membrane electrode assembly electrolyzer incorporating the Ag@C-d catalyst at the cathode, a 91.6 % CO FE at 200 mA cm−2 can be achieved, accompanied by an energy conversion efficiency of nearly 40 %. These findings highlight the promising performance and potential applications of the developed catalyst for acidic CO2RR.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49704425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Towards the next generation nanorobots 迈向下一代纳米机器人

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100019

Guoxiang Chen , Fenyang Zhu , Alexandra S.J. Gan , Brij Mohan , Krishna K. Dey , Kailiang Xu , Gaoshan Huang , Jizhai Cui , Alexander A. Solovev , Yongfeng Mei

引用次数: 0

Detection of prostate specific antigen using a magnetic sulfonated reduced graphene oxide/gold nanoparticle aptasensor 使用磁性磺化还原氧化石墨烯/金纳米粒子适体传感器检测前列腺特异性抗原

Next Nanotechnology Pub Date : 2023-06-01 DOI: 10.1016/j.nxnano.2023.100017

Iman Ahmadi , Mehrab Pourmadadi , Fatemeh Yazdian , Hamid Rashedi , Abbas Rahdar , Sadanand Pandey

{"title":"Detection of prostate specific antigen using a magnetic sulfonated reduced graphene oxide/gold nanoparticle aptasensor","authors":"Iman Ahmadi , Mehrab Pourmadadi , Fatemeh Yazdian , Hamid Rashedi , Abbas Rahdar , Sadanand Pandey","doi":"10.1016/j.nxnano.2023.100017","DOIUrl":"https://doi.org/10.1016/j.nxnano.2023.100017","url":null,"abstract":"<div>Prostate-specific antigen (PSA), is a protein produced by cancerous cells in the prostate gland, and its presence may indicate the likelihood of prostate cancer. For the purpose of detecting PSA, an innovative aptasensor utilizing magnetic sulfonated reduced graphene oxide/gold nanoparticles was developed. This unique nanocomposite has been used for the first time for biosensing of prostate cancer which resulted in significant enhancement of the biosensor’s performance. Unlike previous works, our biosensor incorporates two detection modes: a label-free detection mode in ferrocyanide solution and a labeled mode using methylene blue. Different tests such as FTIR, XRD and TEM were applied to recognize the characterization of the nanoparticles and to make sure of the linkage of particles. To examine the aptasensor at various stages, a range of electroanalytical techniques, such as cyclic voltammetry (CV), square-wave voltammetry (SWV), and electrochemical impedance spectroscopy (EIS), were employed. The aptasensor exhibited significant selectivity for PSA, as demonstrated by its ability to distinguish PSA from other components like glucose, carcinoembryonic antigen (CEA), etc. Ultimately, the detection limit (LOD) reached 1.371 ng/mL in the ferrocyanide environment with an R2 value of 0.9777. Furthermore, the labeled electrode in phosphate buffer achieved the remarkable detection limit of 1.566 pg/mL with an R2 value of 0.9676 and linear range of 2.5–12.5 pg/mL, demonstrating the impressive sensitivity and accuracy of the method.</div>","PeriodicalId":100959,"journal":{"name":"Next Nanotechnology","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2949829523000177/pdfft?md5=a257750b413cfca54a44a796d240bc20&pid=1-s2.0-S2949829523000177-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91964101","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0