Pub Date : 2025-12-21DOI: 10.1016/j.matchemphys.2025.131964
Jie Pan, Ao Liu, Zeyuan Sun, Qi Liu, Jun Li, Xueshan Xiao
The oxidation performance of NiCoCrMoW medium-entropy alloys at 800 °C in ambient air has been investigated. The oxidation rate of the NiCoCrMoW alloys increased dramatically as the Co content, however, increasing Al/Ti co-doping content remarkably decreased oxidation rate of alloys. It can be seen from the macroscopic morphology that the oxide layer is severely peeled off with the increase of Co content and the prolongation of oxidation time. The addition of Al/Ti co-doping also has a significant promoting effect on the integrity of the oxide films. The increase in Al/Ti co-doping effectively slows down oxide film growth rate and reduces the thickness of the internal oxidation zone at the same oxidation time. With Co content increasing, the CoO oxide film on the alloy surface will further oxidize with oxygen to form porous Co3O4, which cannot provide significant protection for matrix. After Al/Ti co-doping, the generated Al2O3 oxide layer can reduce the diffusion of Ni and Co elements to the surface and the Cr2O3 oxide layer on the surface also prevent further oxidation of CoO to Co3O4.
{"title":"Oxidation behavior of NiCoCrMoW medium-entropy alloys with different cobalt content and Al/Ti co-doping at 800 °C in ambient air","authors":"Jie Pan, Ao Liu, Zeyuan Sun, Qi Liu, Jun Li, Xueshan Xiao","doi":"10.1016/j.matchemphys.2025.131964","DOIUrl":"10.1016/j.matchemphys.2025.131964","url":null,"abstract":"<div><div>The oxidation performance of NiCoCrMoW medium-entropy alloys at 800 °C in ambient air has been investigated. The oxidation rate of the NiCoCrMoW alloys increased dramatically as the Co content, however, increasing Al/Ti co-doping content remarkably decreased oxidation rate of alloys. It can be seen from the macroscopic morphology that the oxide layer is severely peeled off with the increase of Co content and the prolongation of oxidation time. The addition of Al/Ti co-doping also has a significant promoting effect on the integrity of the oxide films. The increase in Al/Ti co-doping effectively slows down oxide film growth rate and reduces the thickness of the internal oxidation zone at the same oxidation time. With Co content increasing, the CoO oxide film on the alloy surface will further oxidize with oxygen to form porous Co<sub>3</sub>O<sub>4</sub>, which cannot provide significant protection for matrix. After Al/Ti co-doping, the generated Al<sub>2</sub>O<sub>3</sub> oxide layer can reduce the diffusion of Ni and Co elements to the surface and the Cr<sub>2</sub>O<sub>3</sub> oxide layer on the surface also prevent further oxidation of CoO to Co<sub>3</sub>O<sub>4</sub>.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131964"},"PeriodicalIF":4.7,"publicationDate":"2025-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-21DOI: 10.1016/j.matchemphys.2025.131966
Xinyue Xu , Jing Lv , Lei Chen , Minyu Xu , Yunze Xue , Hong Li , Yuan Ma , Ding Weng , Zhoujin Lv , Peixin Tang , Qi Wen , Jiadao Wang
The enhancement of hardness and electrical conductivity simultaneously presents a contradictory relationship for copper alloys. In this study, an ideal Cu–4Cr–2Nb (at%) alloy was prepared using the hot isostatic pressing (HIP) method. The synthesized alloy has an electrical conductivity of 80.52 % IACS at room temperature. Through the synergistic effects of dispersion strengthening and fine-grain strengthening, the sample achieved a hardness of 153 HV. The slow cooling process enabled sufficient precipitation of phases while simultaneously serving as a natural annealing treatment. This high temperature and pressure treatment allows the sample to have a higher grain boundary density and precipitate fraction while maintaining a lower defect level. These research findings provide new insights for developing Cu–Cr–Nb alloys with excellent mechanical properties and electrical conductivity.
{"title":"Effect of hot isostatic pressure on the mechanical and electrical properties of Cu–Cr–Nb alloy","authors":"Xinyue Xu , Jing Lv , Lei Chen , Minyu Xu , Yunze Xue , Hong Li , Yuan Ma , Ding Weng , Zhoujin Lv , Peixin Tang , Qi Wen , Jiadao Wang","doi":"10.1016/j.matchemphys.2025.131966","DOIUrl":"10.1016/j.matchemphys.2025.131966","url":null,"abstract":"<div><div>The enhancement of hardness and electrical conductivity simultaneously presents a contradictory relationship for copper alloys. In this study, an ideal Cu–4Cr–2Nb (at%) alloy was prepared using the hot isostatic pressing (HIP) method. The synthesized alloy has an electrical conductivity of 80.52 % IACS at room temperature. Through the synergistic effects of dispersion strengthening and fine-grain strengthening, the sample achieved a hardness of 153 HV. The slow cooling process enabled sufficient precipitation of phases while simultaneously serving as a natural annealing treatment. This high temperature and pressure treatment allows the sample to have a higher grain boundary density and precipitate fraction while maintaining a lower defect level. These research findings provide new insights for developing Cu–Cr–Nb alloys with excellent mechanical properties and electrical conductivity.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131966"},"PeriodicalIF":4.7,"publicationDate":"2025-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842512","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study presents a paper-based colorimetric biosensor (P1@AuNP/CNFS) for rapid and selective detection of prostate-specific antigen (PSA) in both clinical and forensic samples. The platform integrates renewable materials, molecular recognition and plasmonic nanotechnology, where cellulose nanofiber strips (CNFS) derived from waste biomass provide a biodegradable substrate and gold nanoparticles (AuNPs) conjugated with a synthetic PSA-specific peptide (P1) serve as the colorimetric probe. Upon PSA binding, the peptide–AuNPs conjugates (P1@AuNPs) aggregate on the CNFS, yielding a visible red-to-blue colour shift via plasmonic coupling within 30 s. The assay achieves a detection limit of ≈7 ng/mL and was validated in human serum and semen samples. This platform is primarily developed for elevated PSA screening and forensic semen identification, where rapid, instrument-free and low-cost detection is required. This low-cost, disposable system satisfies WHO-ASSURED criteria and offers advantages over conventional PSA detection assays. By integrating P1@AuNPs sensing with sustainable biopolymer substrates i.e., CNFS, the device supports dual applications of prostate cancer screening and forensic semen identification. The cross-disciplinary approach, integrating renewable substrate materials, peptide-based biorecognition and plasmonic nanotechnology, highlights its translational potential, enabling reliable PSA testing in resource-limited field settings.
{"title":"A colorimetric sensor for prostate-specific antigen in human blood and semen","authors":"Panchali Barman , Santosh Kumar , Shubhi Joshi , Manpreet Kaur , Mayank Maan , Shweta Sharma , Anupama Kaushik , Avneet Saini","doi":"10.1016/j.matchemphys.2025.131958","DOIUrl":"10.1016/j.matchemphys.2025.131958","url":null,"abstract":"<div><div>This study presents a paper-based colorimetric biosensor (P1@AuNP/CNFS) for rapid and selective detection of prostate-specific antigen (PSA) in both clinical and forensic samples. The platform integrates renewable materials, molecular recognition and plasmonic nanotechnology, where cellulose nanofiber strips (CNFS) derived from waste biomass provide a biodegradable substrate and gold nanoparticles (AuNPs) conjugated with a synthetic PSA-specific peptide (P1) serve as the colorimetric probe. Upon PSA binding, the peptide–AuNPs conjugates (P1@AuNPs) aggregate on the CNFS, yielding a visible red-to-blue colour shift via plasmonic coupling within 30 s. The assay achieves a detection limit of ≈7 ng/mL and was validated in human serum and semen samples. This platform is primarily developed for elevated PSA screening and forensic semen identification, where rapid, instrument-free and low-cost detection is required. This low-cost, disposable system satisfies WHO-ASSURED criteria and offers advantages over conventional PSA detection assays. By integrating P1@AuNPs sensing with sustainable biopolymer substrates i.e., CNFS, the device supports dual applications of prostate cancer screening and forensic semen identification. The cross-disciplinary approach, integrating renewable substrate materials, peptide-based biorecognition and plasmonic nanotechnology, highlights its translational potential, enabling reliable PSA testing in resource-limited field settings.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131958"},"PeriodicalIF":4.7,"publicationDate":"2025-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-20DOI: 10.1016/j.matchemphys.2025.131972
Zhaoqiang Lu , Dandan Yin , Shuguang Liu , Liqiang Yin , Xiaoxiao Wang , Lin Li
Given that polyethylene glycol (PEG) and nanocrystalline cellulose (NCC) can separately enhance the re-swelling and mechanical properties of polyvinyl alcohol (PVA) hydrogel, this study explores the synergistic effects of these on the properties of PVA hydrogel. We first prepared PVA, PEG/PVA, PVA-NCC, and PEG/PVA-NCC hydrogels using a physical freeze-thaw method. The formation mechanism, thermal stability, and electrical conductivity of the hydrogels were investigated. Results indicated that PEG/PVA-NCC hydrogel forms a three-dimensional network structure with NCC as the primary skeleton and PVA as the secondary skeleton. PEG primarily serves as a pore-forming agent, increasing the complexity of the hydrogel structure. The three-dimensional network structure of PVA-NCC and PEG/PVA-NCC hydrogels results in significantly lower volume resistivities (37 Ohms and 22 Ohms, respectively), compared to 616 Ohms (PVA) and 559 Ohms (PEG/PVA). Moreover, PEG and NCC enhance the thermal stability of PVA hydrogel, with the thermal stability of PEG/PVA-NCC hydrogel reaching 277 % of that of the PVA hydrogel. The re-swelling mass percentages of PVA, PEG/PVA, PVA-NCC, and PEG/PVA-NCC hydrogels prepared after three freeze-thaw cycles were 225.68 %, 284.48 %, 239.06 %, and 277.78 %. Their compressive strengths were 0.49 MPa, 0.39 MPa, 0.95 MPa, and 0.67 MPa. In summary, PEG and NCC enhance the re-swelling and mechanical properties of PVA hydrogel from different perspectives. The incorporation of PEG and NCC improves thermal stability, electrical conductivity, re-swelling, and mechanical properties. These improvements demonstrate their significant potential for applications in industrial manufacturing and building materials.
{"title":"Exploring the synergistic effect of polyethylene glycol and nanocrystalline cellulose on the properties of polyvinyl alcohol hydrogel","authors":"Zhaoqiang Lu , Dandan Yin , Shuguang Liu , Liqiang Yin , Xiaoxiao Wang , Lin Li","doi":"10.1016/j.matchemphys.2025.131972","DOIUrl":"10.1016/j.matchemphys.2025.131972","url":null,"abstract":"<div><div>Given that polyethylene glycol (PEG) and nanocrystalline cellulose (NCC) can separately enhance the re-swelling and mechanical properties of polyvinyl alcohol (PVA) hydrogel, this study explores the synergistic effects of these on the properties of PVA hydrogel. We first prepared PVA, PEG/PVA, PVA-NCC, and PEG/PVA-NCC hydrogels using a physical freeze-thaw method. The formation mechanism, thermal stability, and electrical conductivity of the hydrogels were investigated. Results indicated that PEG/PVA-NCC hydrogel forms a three-dimensional network structure with NCC as the primary skeleton and PVA as the secondary skeleton. PEG primarily serves as a pore-forming agent, increasing the complexity of the hydrogel structure. The three-dimensional network structure of PVA-NCC and PEG/PVA-NCC hydrogels results in significantly lower volume resistivities (37 Ohms and 22 Ohms, respectively), compared to 616 Ohms (PVA) and 559 Ohms (PEG/PVA). Moreover, PEG and NCC enhance the thermal stability of PVA hydrogel, with the thermal stability of PEG/PVA-NCC hydrogel reaching 277 % of that of the PVA hydrogel. The re-swelling mass percentages of PVA, PEG/PVA, PVA-NCC, and PEG/PVA-NCC hydrogels prepared after three freeze-thaw cycles were 225.68 %, 284.48 %, 239.06 %, and 277.78 %. Their compressive strengths were 0.49 MPa, 0.39 MPa, 0.95 MPa, and 0.67 MPa. In summary, PEG and NCC enhance the re-swelling and mechanical properties of PVA hydrogel from different perspectives. The incorporation of PEG and NCC improves thermal stability, electrical conductivity, re-swelling, and mechanical properties. These improvements demonstrate their significant potential for applications in industrial manufacturing and building materials.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131972"},"PeriodicalIF":4.7,"publicationDate":"2025-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131955
Muhammad Saqaf Jagirani , Muhammad Mehboob , Ume Hafsa , Aamna Balouch , Pirah Panah , Esra Alveroglu , Komal Shah , Salman Khan , Aftab Hussain Khuhawar
This study reports a phytofabrication technique to synthesize bimetallic Silver/Nickel nanoparticles using Bombax Ceiba Plant extract (BC@Ag/Ni BMNPs). Designed a nanocatalyst evaluated for dual catalytic application (i) degradation of 4-nitrophenol and (ii) antimicrobial activity against Gram-positive and Gram-negative microorganisms. To examine the functionality, texture, morphology, contents of elements, magnitude, and electrostatic properties of prepared BC@Ag/Ni BMNPs using different analytical techniques, including FTIR, XRD, FESEM, EDX, and Zeta potential. Various parameters have been used to degrade 4-nitrophenol, such as reducing agent concentration and volume, reaction time, dose of BC@Ag/Ni BMNPs, and 4-nitrophenol concentration. After optimization, the BC@Ag/Ni BMNPs achieved 99 % efficiency in 60 s using 120 μg of material. The results demonstrate that this catalytic reaction followed the Langmuir-Hinshelwood kinetic mechanism. The antimicrobial activity against S. aureus, E. coli, and A. niger was evaluated and found promising results. The phytofebricate BC@Ag/Ni BMNPs nanocatalyst exhibits excellent catalytic and antimicrobial activity, making it suitable for protecting the aquatic environment from pollution caused by organic toxins and microbial activity.
{"title":"Dual-functional Phytofabricated Ag/Ni bimetallic nanocatalyst: Highly active nanomaterial for microwave-assisted degradation of 4-nitrophenol and antimicrobial activity","authors":"Muhammad Saqaf Jagirani , Muhammad Mehboob , Ume Hafsa , Aamna Balouch , Pirah Panah , Esra Alveroglu , Komal Shah , Salman Khan , Aftab Hussain Khuhawar","doi":"10.1016/j.matchemphys.2025.131955","DOIUrl":"10.1016/j.matchemphys.2025.131955","url":null,"abstract":"<div><div>This study reports a phytofabrication technique to synthesize bimetallic Silver/Nickel nanoparticles using <em>Bombax Ceiba</em> Plant extract (BC@Ag/Ni BMNPs). Designed a nanocatalyst evaluated for dual catalytic application (i) degradation of 4-nitrophenol and (ii) antimicrobial activity against Gram-positive and Gram-negative microorganisms. To examine the functionality, texture, morphology, contents of elements, magnitude, and electrostatic properties of prepared BC@Ag/Ni BMNPs using different analytical techniques, including FTIR, XRD, FESEM, EDX, and Zeta potential. Various parameters have been used to degrade 4-nitrophenol, such as reducing agent concentration and volume, reaction time, dose of BC@Ag/Ni BMNPs, and 4-nitrophenol concentration. After optimization, the BC@Ag/Ni BMNPs achieved 99 % efficiency in 60 s using 120 μg of material. The results demonstrate that this catalytic reaction followed the Langmuir-Hinshelwood kinetic mechanism. The antimicrobial activity against <em>S. aureus, E. coli,</em> and <em>A. niger was evaluated and found</em> promising results. The phytofebricate BC@Ag/Ni BMNPs nanocatalyst exhibits excellent catalytic and antimicrobial activity, making it suitable for protecting the aquatic environment from pollution caused by organic toxins and microbial activity.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131955"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131968
Daoben Zheng , Chen Yu , Xinbin Chen , Ning Lin
Three nicotine salts (NSs) were synthesized through the reaction of nicotine (Nic) with various organic acids. The volatility of Nic and NS was evaluated by mass loss tests, providing a preliminary assessment of their longevity as the volatile corrosion inhibitor (VCI). The anti-corrosion effect of Nic and NS for mild steel corrosion in simulated atmospheric corrosion solution has been investigated using potentiodynamic polarization and electrochemical impedance spectroscopy. All tested VCIs exhibit effective corrosion inhibition, displaying characteristics of mixed-type inhibitors. Confined space quantitative evaluation tests revealed that both Nic and NS achieved corrosion inhibition efficiency exceeding 80 % under atmospheric corrosion conditions. Additionally, the VCI paper prepared with nicotine decanoate can provide more lasting and efficient protection compared with other VCI papers in volatile screening and vapor inhibiting ability tests. Scanning electron microscopy and contact angle analyses suggested that the better performance may be attributed to the influence of alkane chains, which change the hydrophobicity of the mild steel surface more significantly. Adsorption of the Nic on mild steel surfaces in SACS followed the Langmuir adsorption isotherm, and quantum chemical calculations have demonstrated that Nic and NS can spontaneously adsorb to the surface of the mild steel as effective VCI.
{"title":"Electrochemical analysis and molecular simulation of plant-based nicotine derivatives as volatile corrosion inhibitor for mild steel protection","authors":"Daoben Zheng , Chen Yu , Xinbin Chen , Ning Lin","doi":"10.1016/j.matchemphys.2025.131968","DOIUrl":"10.1016/j.matchemphys.2025.131968","url":null,"abstract":"<div><div>Three nicotine salts (NSs) were synthesized through the reaction of nicotine (Nic) with various organic acids. The volatility of Nic and NS was evaluated by mass loss tests, providing a preliminary assessment of their longevity as the volatile corrosion inhibitor (VCI). The anti-corrosion effect of Nic and NS for mild steel corrosion in simulated atmospheric corrosion solution has been investigated using potentiodynamic polarization and electrochemical impedance spectroscopy. All tested VCIs exhibit effective corrosion inhibition, displaying characteristics of mixed-type inhibitors. Confined space quantitative evaluation tests revealed that both Nic and NS achieved corrosion inhibition efficiency exceeding 80 % under atmospheric corrosion conditions. Additionally, the VCI paper prepared with nicotine decanoate can provide more lasting and efficient protection compared with other VCI papers in volatile screening and vapor inhibiting ability tests. Scanning electron microscopy and contact angle analyses suggested that the better performance may be attributed to the influence of alkane chains, which change the hydrophobicity of the mild steel surface more significantly. Adsorption of the Nic on mild steel surfaces in SACS followed the Langmuir adsorption isotherm, and quantum chemical calculations have demonstrated that Nic and NS can spontaneously adsorb to the surface of the mild steel as effective VCI.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131968"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842557","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131963
Kamlesh V. Chandekar , Akash Kapse , Shamal Chinke , Mohd Shkir , Kartikey J. Chavan , Shashank S. Kamble , Arjun R. Potinde
Silver (Ag) coated CoFe2O4 (CF), NiFe2O4 (NF), and ZnFe2O4 (ZF) quantum dots (QD) were synthesized by the co-precipitation route. Phase analysis, structural, and spectroscopic properties of Ag: CoFe2O4 (Ag:CF), Ag: NiFe2O4, (Ag:NF), and Ag: ZnFe2O4 (Ag: ZF) MNPs were examined by X-ray diffraction (XRD) and Raman spectroscopy. The spherical shape morphology with the particle size of 9.25 ± 0.15, 5.13 ± 0.03, and 5.46 ± 0.08 nm for Ag:CF, Ag:NF, and Ag: ZF MNPs, respectively were determined by high-resolution transmission electron microscopy (HRTEM). The respective oxidation states of Co, Ni, Zn, Fe, O, and Ag metals in the prepared MNPs were determined by X-ray photoelectron spectroscopy (XPS). The saturation magnetization of 58.65, 46.01, and 47.31 (emu/g), remanent magnetization of 9.91, 1.46, 0.972 (emu/g), and coercive field of 518, 36, and 18 Oe for Ag-coated CF, NF and ZF NPs was determined by M − H hysteresis at ± 7 T. M-T spectra examined the blocking temperature less than 300K at 100 Oe for Ag: CF, Ag: NF, and Ag: ZF MNPs, respectively. The prepared quantum dots for Ag: MFe2O4 (M = Co, Ni, Zn) NCs exhibiting superparamagnetic (SP) property can be employed for the treatment of different diseases. The anticancer activity of Ag: MFe2O4 (M = Co,Ni,Zn) NPs in various concentrations (5, 10, 20, 40, 80, and 160 μg/mL) were employed against MDA-MD 231, and MCF-7 cell lines respectively. At low dose (5 μg/mL), the Ag:CF, Ag:NF, Ag: ZF NPs exhibited cell viability 69.49 %, 59.16 %, and 63.23 %, respectively compared to 10, 20, 40, 80, and 160 μg/mL for MDA-MD 231 cell line. At dose of (20 μg/mL), the Ag:CF, and Ag: ZF NPs exhibited cell viability 86.53 %, and 69.35 %, respectively compared to 5, 10, 40, 80, and 160 μg/mL for MCF-7 cell line. Ag: NF NPs exhibited cell viability 72.04 % at dose of 10 (μg/mL) compared to other concentrations for MCF-7 cell line. MTT assay of prepared NPs exhibits Ag: MF NCs more cytotoxic compared to positive control, suggesting potential applications as a drug carrier.
The anticancer activity of Ag: CF, Ag:NF, and Ag: ZF NCs samples created in 10, 20, 40 and 80 μg/mL contents against the MCF-7 cell line were analyzed using SRB assay. Ag: ZF, Ag:NF, and Ag:NF NPs samples at the 20 μg/mL provide more cytotoxic effect against MCF-7 cells and indicate as a significant drug carrier in the treatment of Breast cancer.
{"title":"Impact of Ag coated CoFe2O4, NiFe2O4, and ZnFe2O4 quantum dots synthesized by co-precipitation route for anticancer activity against MDA-MB 231 and MCF-7 breast cancer cell lines","authors":"Kamlesh V. Chandekar , Akash Kapse , Shamal Chinke , Mohd Shkir , Kartikey J. Chavan , Shashank S. Kamble , Arjun R. Potinde","doi":"10.1016/j.matchemphys.2025.131963","DOIUrl":"10.1016/j.matchemphys.2025.131963","url":null,"abstract":"<div><div>Silver (Ag) coated CoFe<sub>2</sub>O<sub>4</sub> (CF), NiFe<sub>2</sub>O<sub>4</sub> (NF), and ZnFe<sub>2</sub>O<sub>4</sub> (ZF) quantum dots (QD) were synthesized by the co-precipitation route. Phase analysis, structural, and spectroscopic properties of Ag: CoFe<sub>2</sub>O<sub>4</sub> (Ag:CF), Ag: NiFe<sub>2</sub>O<sub>4</sub>, (Ag:NF), and Ag: ZnFe<sub>2</sub>O<sub>4</sub> (Ag: ZF) MNPs were examined by X-ray diffraction (XRD) and Raman spectroscopy. The spherical shape morphology with the particle size of 9.25 ± 0.15, 5.13 ± 0.03, and 5.46 ± 0.08 nm for Ag:CF, Ag:NF, and Ag: ZF MNPs, respectively were determined by high-resolution transmission electron microscopy (HRTEM). The respective oxidation states of Co, Ni, Zn, Fe, O, and Ag metals in the prepared MNPs were determined by X-ray photoelectron spectroscopy (XPS). The saturation magnetization <span><math><mrow><mi>M</mi><mi>s</mi></mrow></math></span> of 58.65, 46.01, and 47.31 (emu/g), remanent magnetization <span><math><mrow><mi>M</mi><mi>r</mi></mrow></math></span> of 9.91, 1.46, 0.972 (emu/g), and coercive field <span><math><mrow><mi>H</mi><mi>c</mi></mrow></math></span> of 518, 36, and 18 Oe for Ag-coated CF, NF and ZF NPs was determined by M − H hysteresis at ± 7 T. M-T spectra examined the blocking temperature less than 300K at 100 Oe for Ag: CF, Ag: NF, and Ag: ZF MNPs, respectively. The prepared quantum dots for Ag: MFe<sub>2</sub>O<sub>4</sub> (M = Co, Ni, Zn) NCs exhibiting superparamagnetic (SP) property can be employed for the treatment of different diseases. The anticancer activity of Ag: MFe<sub>2</sub>O<sub>4</sub> (M = Co,Ni,Zn) NPs in various concentrations (5, 10, 20, 40, 80, and 160 μg/mL) were employed against MDA-MD 231, and MCF-7 cell lines respectively. At low dose (5 μg/mL), the Ag:CF, Ag:NF, Ag: ZF NPs exhibited cell viability 69.49 %, 59.16 %, and 63.23 %, respectively compared to 10, 20, 40, 80, and 160 μg/mL for MDA-MD 231 cell line. At dose of (20 μg/mL), the Ag:CF, and Ag: ZF NPs exhibited cell viability 86.53 %, and 69.35 %, respectively compared to 5, 10, 40, 80, and 160 μg/mL for MCF-7 cell line. Ag: NF NPs exhibited cell viability 72.04 % at dose of 10 (<em>μ</em>g/mL) compared to other concentrations for MCF-7 cell line. MTT assay of prepared NPs exhibits Ag: MF NCs more cytotoxic compared to positive control, suggesting potential applications as a drug carrier.</div><div>The anticancer activity of Ag: CF, Ag:NF, and Ag: ZF NCs samples created in 10, 20, 40 and 80 μg/mL contents against the MCF-7 cell line were analyzed using SRB assay. Ag: ZF, Ag:NF, and Ag:NF NPs samples at the 20 μg/mL provide more cytotoxic effect against MCF-7 cells and indicate as a significant drug carrier in the treatment of Breast cancer.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131963"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145799679","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131961
Suchitra Puthran , A.N. Prabhu , Ting-Hsuan Lai , Y.K. Kuo
This study investigates the structural and thermoelectric properties of intrinsic p-type Bi2Te3 and (Bi1-xGex)2T2·7Se0.3 single crystals, which were synthesized using a modified vertical Bridgman technique. X-ray diffraction analysis confirmed the formation of single-phase Bi2Te3 and validated the optimized substitution of Ge and Se. The doped samples exhibited reduced thermal conductivity compared to the undoped counterpart, primarily due to enhanced phonon scattering mechanisms. Electrical transport measurements revealed that the enhancement in the thermoelectric figure of merit (ZT) is driven by reduced thermal conductivity, resulting from increased phonon scattering at grain boundaries and defects. In the sample with x = 0.04, a 2.3-fold reduction in thermal conductivity was observed, which led to approximately a 3-fold enhancement in the power factor (5394 μW/m·K2) and a 3.9-fold increase in ZT value (0.67) compared to the pristine sample at 350 K. Consequently, a fourfold enhancement in the ZT value of ∼0.7 at 350 K was achieved for (Bi0.94Ge0.06)2Te2·7Se0.3, due to a 5.6-fold reduction in electrical resistivity compared to Bi2Te3. These findings highlight the potential of Ge/Se co-doping and melt-growth synthesis in developing advanced thermoelectric materials.
{"title":"Boosting thermoelectric performance in Bi2Te3 crystals by Ge/Se co-doping and melt-growth synthesis","authors":"Suchitra Puthran , A.N. Prabhu , Ting-Hsuan Lai , Y.K. Kuo","doi":"10.1016/j.matchemphys.2025.131961","DOIUrl":"10.1016/j.matchemphys.2025.131961","url":null,"abstract":"<div><div>This study investigates the structural and thermoelectric properties of intrinsic p-type Bi<sub>2</sub>Te<sub>3</sub> and (Bi<sub>1-<em>x</em></sub>Ge<sub><em>x</em></sub>)<sub>2</sub>T<sub>2·7</sub>Se<sub>0.3</sub> single crystals, which were synthesized using a modified vertical Bridgman technique. X-ray diffraction analysis confirmed the formation of single-phase Bi<sub>2</sub>Te<sub>3</sub> and validated the optimized substitution of Ge and Se. The doped samples exhibited reduced thermal conductivity compared to the undoped counterpart, primarily due to enhanced phonon scattering mechanisms. Electrical transport measurements revealed that the enhancement in the thermoelectric figure of merit (<em>ZT</em>) is driven by reduced thermal conductivity, resulting from increased phonon scattering at grain boundaries and defects. In the sample with <em>x</em> = 0.04, a 2.3-fold reduction in thermal conductivity was observed, which led to approximately a 3-fold enhancement in the power factor (5394 μW/m·K<sup>2</sup>) and a 3.9-fold increase in <em>ZT</em> value (0.67) compared to the pristine sample at 350 K. Consequently, a fourfold enhancement in the <em>ZT</em> value of ∼0.7 at 350 K was achieved for (Bi<sub>0.94</sub>Ge<sub>0.06</sub>)<sub>2</sub>Te<sub>2·7</sub>Se<sub>0.3</sub>, due to a 5.6-fold reduction in electrical resistivity compared to Bi<sub>2</sub>Te<sub>3</sub>. These findings highlight the potential of Ge/Se co-doping and melt-growth synthesis in developing advanced thermoelectric materials.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131961"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131965
Hang Yin , Xinyu Cai , Li Li , Yinfeng Hua , Lili Yan , Runkai Wang , Pinhua Rao
Superhydrophilic-superoleophobic membranes are of great value for oil-water separation. Most studies have concentrated on the superhydrophilic-underwater superoleophobic properties of membranes. Air superhydrophilic-superoleophobic membranes feature excellent resistance to oil contamination and do not require pre-wetting with water prior to their application in oil-water separation, thus holding more promising prospects in this field. This study utilized two fluorine-containing materials, fluorosurfactant (Capstone FS-50, DuPont) and perfluorooctanoic acid sodium salt (PFOA-Na), along with TiO2 nanoparticles, to fabricate air superhydrophilic-superoleophobic SiC (HiOo-SiC) membranes successfully. The resulting HiOo-SiC membrane displayed a lower water contact angle (4.1°) and a higher oil contact angle (170.8°) compared to the original SiC membrane, indicating exceptional air superhydrophilic-superoleophobic properties. Additionally, the HiOo-SiC membranes exhibited significantly lower adhesion to oil droplets than SiC membranes modified by either Capstone FS-50 or PFOA-Na alone, which is advantageous for mitigating membrane fouling and thereby improving oil-water separation performance. This attribute may be attributed to the higher surface free energy and roughness of the HiOo-SiC membrane. Furthermore, the HiOo-SiC membrane had smaller pore sizes ranging from 40 to 60 nm due to the incorporation of TiO2 nanoparticles, which were 9–13.5 times smaller than those of the original SiC membrane. The small pore size, high air superhydrophilic-superoleophobic properties, and low oil adhesion of the HiOo-SiC membrane led to a notable enhancement in the oil-water separation efficiency of emulsions, increasing from 94.15 % to 99.61 % for edible oil-in-water emulsions and from 26.4 % to 89.2 % for hexadecane-in-water emulsions, demonstrating remarkable capabilities in separating oil-in-water emulsions.
{"title":"The preparation and application of air superhydrophilic-superoleophobic SiC membrane with low adhesion to oil","authors":"Hang Yin , Xinyu Cai , Li Li , Yinfeng Hua , Lili Yan , Runkai Wang , Pinhua Rao","doi":"10.1016/j.matchemphys.2025.131965","DOIUrl":"10.1016/j.matchemphys.2025.131965","url":null,"abstract":"<div><div>Superhydrophilic-superoleophobic membranes are of great value for oil-water separation. Most studies have concentrated on the superhydrophilic-underwater superoleophobic properties of membranes. Air superhydrophilic-superoleophobic membranes feature excellent resistance to oil contamination and do not require pre-wetting with water prior to their application in oil-water separation, thus holding more promising prospects in this field. This study utilized two fluorine-containing materials, fluorosurfactant (Capstone FS-50, DuPont) and perfluorooctanoic acid sodium salt (PFOA-Na), along with TiO<sub>2</sub> nanoparticles, to fabricate air superhydrophilic-superoleophobic SiC (HiOo-SiC) membranes successfully. The resulting HiOo-SiC membrane displayed a lower water contact angle (4.1°) and a higher oil contact angle (170.8°) compared to the original SiC membrane, indicating exceptional air superhydrophilic-superoleophobic properties. Additionally, the HiOo-SiC membranes exhibited significantly lower adhesion to oil droplets than SiC membranes modified by either Capstone FS-50 or PFOA-Na alone, which is advantageous for mitigating membrane fouling and thereby improving oil-water separation performance. This attribute may be attributed to the higher surface free energy and roughness of the HiOo-SiC membrane. Furthermore, the HiOo-SiC membrane had smaller pore sizes ranging from 40 to 60 nm due to the incorporation of TiO<sub>2</sub> nanoparticles, which were 9–13.5 times smaller than those of the original SiC membrane. The small pore size, high air superhydrophilic-superoleophobic properties, and low oil adhesion of the HiOo-SiC membrane led to a notable enhancement in the oil-water separation efficiency of emulsions, increasing from 94.15 % to 99.61 % for edible oil-in-water emulsions and from 26.4 % to 89.2 % for hexadecane-in-water emulsions, demonstrating remarkable capabilities in separating oil-in-water emulsions.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"351 ","pages":"Article 131965"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145842615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-12-19DOI: 10.1016/j.matchemphys.2025.131969
Mengjun Liu , Shouren Wang , Yang Li , Mingyang Du , Zhuang Zhang , Zhiqun Zhou
Aluminum alloys have garnered significant attention and favor across multiple application fields owing to their excellent superhydrophobic properties. This paper focuses on the development of novel aluminum alloys, utilizing laser cladding technology to prepare the Al–15Si–5Cu–5Mg–2Mn–xCNTs alloy. Microstructure analysis results indicate that a large number of intermetallic compounds precipitate in the cladding layers. In the microscopic regions of alloys with added carbon nanotubes (CNTs), the grains are significantly refined, which is mainly attributed to the nucleation and pinning effects exerted by CNTs. Wear tests demonstrate that the introduction of intermetallic compound frameworks reduces the wear rate and friction coefficient of the Al–15Si–5Cu–5Mg–2Mn alloy while significantly enhancing its wear resistance. Adding an appropriate amount of CNTs synergistically lowers the wear rate and alters the wear mechanism, with optimal performance observed at a CNT content of 0.4 wt%. CNTs facilitate effective stress transfer within the coating, enabling uniform distribution of external loads, reducing local stress concentration, and minimizing wear. The fabrication of superhydrophobic surfaces primarily involves selective etching to expose precipitate phases with diverse geometric configurations on alloy substrates, thereby constructing micro/nanocomposite structures. Subsequently, after modification with fluorosilane materials, a robust surface with long-lasting stability and excellent corrosion resistance is achieved, with superhydrophobic functionality derived from the precipitated phases (PPAS) of Al–Si alloys. This study provides novel insights and methodologies for the surface modification and performance enhancement of aluminum alloys.
{"title":"Study on the effect of CNTs content on the formation and properties of superhydrophobic surfaces in Al–15Si–5Cu–5Mg–2Mn–xCNTs alloys","authors":"Mengjun Liu , Shouren Wang , Yang Li , Mingyang Du , Zhuang Zhang , Zhiqun Zhou","doi":"10.1016/j.matchemphys.2025.131969","DOIUrl":"10.1016/j.matchemphys.2025.131969","url":null,"abstract":"<div><div>Aluminum alloys have garnered significant attention and favor across multiple application fields owing to their excellent superhydrophobic properties. This paper focuses on the development of novel aluminum alloys, utilizing laser cladding technology to prepare the Al–15Si–5Cu–5Mg–2Mn–xCNTs alloy. Microstructure analysis results indicate that a large number of intermetallic compounds precipitate in the cladding layers. In the microscopic regions of alloys with added carbon nanotubes (CNTs), the grains are significantly refined, which is mainly attributed to the nucleation and pinning effects exerted by CNTs. Wear tests demonstrate that the introduction of intermetallic compound frameworks reduces the wear rate and friction coefficient of the Al–15Si–5Cu–5Mg–2Mn alloy while significantly enhancing its wear resistance. Adding an appropriate amount of CNTs synergistically lowers the wear rate and alters the wear mechanism, with optimal performance observed at a CNT content of 0.4 wt%. CNTs facilitate effective stress transfer within the coating, enabling uniform distribution of external loads, reducing local stress concentration, and minimizing wear. The fabrication of superhydrophobic surfaces primarily involves selective etching to expose precipitate phases with diverse geometric configurations on alloy substrates, thereby constructing micro/nanocomposite structures. Subsequently, after modification with fluorosilane materials, a robust surface with long-lasting stability and excellent corrosion resistance is achieved, with superhydrophobic functionality derived from the precipitated phases (PPAS) of Al–Si alloys. This study provides novel insights and methodologies for the surface modification and performance enhancement of aluminum alloys.</div></div>","PeriodicalId":18227,"journal":{"name":"Materials Chemistry and Physics","volume":"350 ","pages":"Article 131969"},"PeriodicalIF":4.7,"publicationDate":"2025-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145839979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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