Nanoscale Advances最新文献

Microwave-assisted synthesis of self-assembled C-doped-ZnO/g-C₃N₄ heterojunction catalysts for effective photodegradation of ofloxacin antibiotic.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-31 DOI: 10.1039/d5na00060b

Thi Viet Ha Luu, Ngoc Nhiem Dao, Van Vinh Nguyen, Quang Bac Nguyen, Thi Ha Chi Nguyen, Ngoc Chuc Pham, Ngoc Hoanh Dao, Trung Kien Nguyen

{"title":"Microwave-assisted synthesis of self-assembled C-doped-ZnO/g-C3N4 heterojunction catalysts for effective photodegradation of ofloxacin antibiotic.","authors":"Thi Viet Ha Luu, Ngoc Nhiem Dao, Van Vinh Nguyen, Quang Bac Nguyen, Thi Ha Chi Nguyen, Ngoc Chuc Pham, Ngoc Hoanh Dao, Trung Kien Nguyen","doi":"10.1039/d5na00060b","DOIUrl":"10.1039/d5na00060b","url":null,"abstract":"In this study, carbon-doped zinc oxide (CZ45) prepared using the microwave-assisted solvothermal method was electrostatically assembled with graphitic carbon nitride (GCN) to obtain CZ45/GCN (CZCN) heterojunction photocatalysts. The obtained composites showed average sizes in the range of 19.12-20.51 nm with the disintegration of petal-like stacked GCN sheets. A significant decrease in the bandgap (E g) from 3.12 eV in CZ45 to 2.67-2.81 eV in the CZCN composites and the photoluminescence (PL) spectra indicated an enhanced charge carrier separation suitable for the catalytic application under visible light irradiation. The CZCN11 composite (E g = 2.81 eV) with a CZ45 : GCN weight ratio of 1 : 1 demonstrated outstanding photocatalytic performance in the degradation of ofloxacin (OFL) antibiotics compared to the other prepared CZCN composites as well as GCN and CZ45. The optimal parameters for OFL photodegradation by CZCN11 were determined; the CZCN11 dosage, OFL initial concentration, and pH range were found to be 1.01 g L-1, 20 ppm, and 7.0-8.0, respectively. Under these conditions, about 96% of the initial amount of OFL was decomposed at an apparent rate of 0.0173 min-1 in 180 min. A reusability test indicated the excellent durability and recyclability of CZCN11 in OFL photodegradation since the degradation efficiency was reduced only by about 1% after five successive runs without any alteration in the original structure of the composite. Furthermore, the active-charge-trapping experiments displayed the crucial role of superoxide (˙O2 -) radicals in OFL photodegradation by the CZCN composites.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11956032/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143764468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Renal clearable sucrose carbon dots for doxorubicin delivery to treat renal carcinoma.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-28 DOI: 10.1039/d4na01082e

Farhana Azmi, Xiaoxue Xu, Hien Duong, Ping Ye, Titi Chen, Hongxi Li, Jianwei Chen, Sara Madadi Ardekani, Alireza Dehghani, Guoping Zheng, David Harris, Hongxu Lu, Yiping Wang, Qi Cao

{"title":"Renal clearable sucrose carbon dots for doxorubicin delivery to treat renal carcinoma.","authors":"Farhana Azmi, Xiaoxue Xu, Hien Duong, Ping Ye, Titi Chen, Hongxi Li, Jianwei Chen, Sara Madadi Ardekani, Alireza Dehghani, Guoping Zheng, David Harris, Hongxu Lu, Yiping Wang, Qi Cao","doi":"10.1039/d4na01082e","DOIUrl":"10.1039/d4na01082e","url":null,"abstract":"Renal Cell Carcinoma (RCC) poses challenges for conventional treatment methods, but recent advancements indicate the potential of nanoparticles (NPs) in enhancing chemotherapy efficacy. This study focuses on developing non-toxic NPs from sucrose and l-serine via hydrothermal synthesis to produce Sucrose Carbon Dots (Suc CDs), designed for renal clearance to deliver hydrophilic drugs for the treatment of RCC. Suc CDs with a size of 4 nm exhibit high fluorescence with a fluorescence quantum yield of 58% and high drug loading capacity without toxicity to normal cell lines (renal tubular cells). Under in vitro conditions, Suc CDs alone are non-toxic, while Suc CDs with DOX display improved anticancer effects on Renca cells (cancer cell line). Under in vivo conditions, Suc CDs loaded with DOX outperform DOX alone with reduced toxicity to normal cells. Biodistribution study of Suc CDs revealed prolonged tumour site accumulation. This research demonstrates that renal clearable Suc CDs loaded with DOX exhibit superior anti-cancer activity, and are free of side effects, suggesting promising therapeutic potential for human RCC.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11951162/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineered etching and laser treatment of porous silicon for enhanced sensitivity and speed of Pt/n-PSi/Pt UV photodetectors.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-27 DOI: 10.1039/d5na00137d

Asad A Thahe, Ali Dahi, Motahher A Qaeed, Omar F Farhat, Hazri Bakhtiar, Nageh K Allam

{"title":"Engineered etching and laser treatment of porous silicon for enhanced sensitivity and speed of Pt/n-PSi/Pt UV photodetectors.","authors":"Asad A Thahe, Ali Dahi, Motahher A Qaeed, Omar F Farhat, Hazri Bakhtiar, Nageh K Allam","doi":"10.1039/d5na00137d","DOIUrl":"10.1039/d5na00137d","url":null,"abstract":"Silicon-based photodetectors offer notable advantages in cost, performance, and reliability. However, while nanoscale silicon (porous silicon, PSi) effectively emits visible light, it remains inefficient as an indirect-bandgap semiconductor. To improve its optoelectronic properties, coupling silicon with a wide-bandgap semiconductor is a promising strategy. In this study, nanoporous silicon (n-PSi) films were fabricated from an n-type Si (111) wafer using optimized photoelectrochemical etching (PECE). These films were then irradiated with Q-switched Nd:YAG laser pulses (3, 5, 10, and 20 pulses) at a fixed wavelength of 1068 nm, with pulse durations ranging from 3 to 20 ns and a constant repetition rate of 10 Hz. The structural, morphological, and optical properties of both as-prepared and laser-annealed n-PSi samples were characterized using various analytical techniques. Among the laser-treated samples, n-PSi subjected to three laser pulses exhibited the highest crystallinity and largest crystallite size (∼87.02 nm). This optimized sample was selected for fabricating a Pt/n-PSi/Pt metal-semiconductor-metal (MSM) ultraviolet (UV) photodetector. The photoluminescence spectra of the fabricated devices revealed strong near-band-edge (NBE) emission, with a violet band centered around 523 nm, corresponding to a bandgap energy of 2.36 eV. The I-V characteristics of the MSM UV photodetectors were analyzed under dark conditions and 380 nm UV illumination. The device demonstrated high photosensitivity (951.28), excellent responsivity (2.01 A W-1), and fast response (0.44 s) and recovery (0.48 s) times, outperforming conventional photodetectors. This approach provides a viable pathway for tuning nanomaterials with tailored properties for high-performance nanodevices. The fabricated MSM UV photodetectors show great potential for next-generation optoelectronic applications.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11960784/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pulsed laser synthesis of free-standing Pt single atoms in an ice block for enhancing photocatalytic hydrogen evolution of g-C₃N₄.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-26 DOI: 10.1039/d5na00043b

Yongming Fu, Qianyu Lu, Jianhong Wang, Na Sun, Jinjun Gao, Peng Chen, Jizhou Wu, Jie Ma

{"title":"Pulsed laser synthesis of free-standing Pt single atoms in an ice block for enhancing photocatalytic hydrogen evolution of g-C3N4.","authors":"Yongming Fu, Qianyu Lu, Jianhong Wang, Na Sun, Jinjun Gao, Peng Chen, Jizhou Wu, Jie Ma","doi":"10.1039/d5na00043b","DOIUrl":"10.1039/d5na00043b","url":null,"abstract":"This study reports an innovative synthesis method of a Pt/g-C3N4 single atom catalyst for enhancing photocatalytic hydrogen evolution. The method involves the synthesis of free-standing Pt single atoms within an H2PtCl6 ice block using a pulsed laser reduction process, followed by transferring them onto few-layer g-C3N4 through electrostatic adsorption at low temperature. This approach eliminates the need for high-energy lasers and porous support materials during laser solid-phase synthesis. The photocatalytic activities of Pt/g-C3N4 synthesized under various laser conditions are evaluated to optimize the synthesis parameters. The optimal Pt/g-C3N4 catalyst demonstrates a significantly higher photocatalytic hydrogen evolution capability (320 μmol h-1), 129 times that of pure g-C3N4 (2.2 μmol h-1). This work expands the laser-solid phase synthesis method, offering a promising route for the production of single atom catalysts with simple operation, clear synthetic pathways, low cost, and environmental friendliness.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11959413/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A dual-functional nanogold tablet as a plasmonic and nanozyme sensor for point-of-care applications.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-20 DOI: 10.1039/d5na00082c

Zubi Sadiq, Seyed Hamid Safiabadi Tali, Maryam Mansouri, Sana Jahanshahi-Anbuhi

{"title":"A dual-functional nanogold tablet as a plasmonic and nanozyme sensor for point-of-care applications.","authors":"Zubi Sadiq, Seyed Hamid Safiabadi Tali, Maryam Mansouri, Sana Jahanshahi-Anbuhi","doi":"10.1039/d5na00082c","DOIUrl":"10.1039/d5na00082c","url":null,"abstract":"Point-of-care (POC) devices provide on-site disease diagnosis, particularly in resource-limited settings. Despite considerable progress in POC testing, the availability of commercial devices remains limited, primarily due to challenges in detection sensitivity and portability. Furthermore, advancements in existing POC devices are essential to better meet the needs of end-users. Herein, we present a colorimetric dual-functional tablet sensor using dextran-gold nanoparticles (dAuNPs) to detect and quantify uric acid and glucose levels in urine. Our tablet sensor combines the plasmonic and nanozyme properties of dAuNPs, resulting in highly sensitive detection of both biomarkers. Interestingly, we fabricated the nanogold tablet directly from the dAuNP solution without the addition of any external stabilizer or tablet-forming reagent, thus naming it a direct tablet. An enzyme-free approach was employed for uric acid detection, providing a wide detection range of 0.00187-7.8 mM and a low detection limit of 0.0037 mM, attributed to the hydrogen bonding between dextran and uric acid. On the other hand, the unique nanozyme properties of dAuNPs exhibited exclusive POx-mimetic activity for glucose detection (K m = 0.106 mM and V max = 369.72 mM min-1), with a lower detection limit of 0.625 mM. Our dual-functional tablet offers exceptional substrate selectivity for the colorimetric-chromogenic assay of both uric acid and glucose. This dual-functionality not only provides a highly sensitive, selective, and cost-effective detection strategy for resource-limited settings but also introduces a new avenue for designing customizable plasmonic-nanozyme nanogold tablet sensors as a powerful tool for rapid diagnosis.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11960780/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of cylindrical micelles assembled from amphiphilic β-peptides as antigen delivery nanostructures.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-20 DOI: 10.1039/d5na00166h

Clément Martin, Mélanie Côté-Cyr, Phuong Trang Nguyen, Denis Archambault, Steve Bourgault

{"title":"Evaluation of cylindrical micelles assembled from amphiphilic β-peptides as antigen delivery nanostructures.","authors":"Clément Martin, Mélanie Côté-Cyr, Phuong Trang Nguyen, Denis Archambault, Steve Bourgault","doi":"10.1039/d5na00166h","DOIUrl":"10.1039/d5na00166h","url":null,"abstract":"Supramolecular nanostructures assembled from synthetic peptides constitute promising scaffolds for the delivery of antigens for vaccine development. Amphiphilic peptides and self-assembling cross-β-peptides have been shown to promote cellular uptake of antigenic epitopes by antigen-presenting cells, to stimulate the innate immune system and to induce a robust antigen-specific humoral immune response. In this study, we evaluated the use of cylindrical micelles assembled from the amphiphilic β-peptide C16V3A3K3 as a vaccine nanoplatform, combining the properties of cross-β-sheet fibrils and micelles. The ectodomain of the matrix 2 protein (M2e) of the influenza A virus was conjugated with a tetra-Gly linker at the C-terminus of C16V3A3K3. The chimeric peptide assembled into biocompatible unbranched filaments that exposed the antigen on the surface, and these filaments were readily internalized by dendritic cells and activated the toll-like receptor 2/6. These cylindrical micelles induced a robust M2e-specific humoral immune response upon intramuscular immunization in mice without the need for co-administration with adjuvants. Although this strong humoral response did not translate into protection against a lethal infection with the H1N1 influenza virus, these cylindrical micelles assembled from amphiphilic β-peptides expand the repertoire of self-adjuvanted nanostructures to enhance antibody production against peptide epitopes.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11960782/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143772744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: Analyzing the charge contributions of metal-organic framework derived nanosized cobalt nitride/carbon composites in asymmetrical supercapacitors.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-20 DOI: 10.1039/d5na90017d

Vishal Shrivastav, Mansi, Prashant Dubey, Umesh K Tiwari, Akash Deep, Wojciech Nogala, Shashank Sundriyal

引用次数: 0

MXene synthesis in a semi-continuous 3D-printed PVDF flow reactor.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-19 DOI: 10.1039/d4na00991f

Molly J Clark, Alice E Oakley, Nikolay Zhelev, Marina Carravetta, Thomas Byrne, Adrian M Nightingale, Nuno Bimbo

引用次数: 0

Single-cell parallel plate mechanics by side-view optical microscopy-assisted atomic force microscopy.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-19 DOI: 10.1039/d5na00012b

Mingyang Yang, Yanqi Yang, Lianqing Liu, Mi Li

{"title":"Single-cell parallel plate mechanics by side-view optical microscopy-assisted atomic force microscopy.","authors":"Mingyang Yang, Yanqi Yang, Lianqing Liu, Mi Li","doi":"10.1039/d5na00012b","DOIUrl":"10.1039/d5na00012b","url":null,"abstract":"The mechanical forces of individual cells are crucial for physiological and pathological processes, and particularly atomic force microscopy (AFM)-based force spectroscopy has become an important and widely used tool for single-cell mechanical measurements. Here, we present a single-cell parallel plate mechanical measurement method based on side-view optical microscopy-assisted AFM by using a wedged probe, which enables visualization of the uniaxial AFM force spectroscopy process of the cell in real time from the vertical cross-sectional view. With this method, AFM whole-cell compression assays with uniaxial loading forces were performed to quantify the Young's modulus of the entire cell, and the effects of experimental parameters (ramp rate of the AFM probe) and drugs (actin inhibitors) on the measured cell Young's modulus were examined. Additionally, by attaching a living cell to the parallel plate of the wedged probe, AFM-based uniaxial single-cell force spectroscopy (SCFS) assays were performed to measure the adhesion forces of individual cells. The study illustrates a promising approach for single-cell mechanical analysis, which will benefit the application of AFM-based force spectroscopy in the field of mechanobiology to reveal additional insights into the regulatory role of mechanical cues in life activities.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11931428/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143710738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave characterization of plasmonic antennas through electron energy loss spectroscopy.

IF 4.6 3区材料科学

Nanoscale Advances Pub Date : 2025-03-19 DOI: 10.1039/d4na00960f

Igor Getmanov, Qingxiao Wang, Heng Wang, Atif Shamim, Dalaver H Anjum

{"title":"Microwave characterization of plasmonic antennas through electron energy loss spectroscopy.","authors":"Igor Getmanov, Qingxiao Wang, Heng Wang, Atif Shamim, Dalaver H Anjum","doi":"10.1039/d4na00960f","DOIUrl":"10.1039/d4na00960f","url":null,"abstract":"The absence of suitable equipment has long hindered traditional microwave characterization of nano-antennas and their effective design at frequencies beyond several terahertz, limiting the exploration of the myriad applications of plasmonic antennas by the microwave engineering community and necessitating a paradigm shift in characterization methods. This work addresses this challenge by introducing a novel approach employing electron energy loss spectroscopy (EELS) to characterize input impedance and scattering parameters of plasmonic antennas from mid-infrared to optical frequencies. Central to this method is a newly developed theoretical framework that links electron energy loss probability with microwave scattering parameters, crucial for antenna design. We validated this approach through a study of a single plasmonic dipole, finding a good correspondence between the measured EEL spectra and our theoretical model, supported by our developed simulation model. Drawing upon this correlation, we proposed an algorithm for the reverse procedure of extracting S-parameters and input impedance from experimental EEL probability. Spatial profiles of input impedance and S-parameters for a single plasmonic dipole were experimentally characterized across the broad frequency spectrum ranging from 25 to 150 THz and compared with simulation results, revealing a robust correlation, particularly at resonant frequencies. Our non-contact method could serve as an alternative approach to microwave parameters characterization, functioning similarly to a vector network analyzer (VNA) but extending its capabilities to much higher frequencies, where VNAs are not available.","PeriodicalId":18806,"journal":{"name":"Nanoscale Advances","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11949246/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0