Pub Date : 2026-04-01Epub Date: 2026-01-31DOI: 10.1016/j.nxmate.2026.101672
Monark Bhatt , Miraj Patel , Sonal Thakore
The development of sustainable and efficient adsorbents for wastewater treatment is of great importance in addressing environmental pollution caused by synthetic dyes. In this study, a porous organic polymer (BMQ) was synthesized via crosslinking of β-cyclodextrin (β-CD) with the natural polyphenol, quercetin. The BMQ polymer was characterized by solid state NMR, PXRD, FT-IR, BET, SEM and TGA, which confirmed the formation of a porous, multifunctional framework with abundant active sites. Batch adsorption experiments revealed that BMQ exhibits remarkable selectivity toward cationic dyes, achieving > 95 % adsorption of crystal violet (CV) and rhodamine B (RhB), while depicting < 5 % adsorption for Alizarin Red S (ARS) and < 23.6 % for Fast Sulphon Black F (FSB) under optimized conditions. Adsorption equilibrium data were best described by the Langmuir isotherm, yielding maximum adsorption capacities (Qmax) of 234.08 mg/g and 255.02 mg/g at 323 K for CV and RhB, respectively. Kinetic studies indicated that the pseudo-second-order (PSO) model provided the best fit. Thermodynamic analyses confirmed that the adsorption process is endothermic and spontaneous. Furthermore, BMQ demonstrated excellent recyclability, retaining high adsorption efficiency (>81.5 %) over five successive cycles. These findings highlight the potential of BMQ as a robust, high-capacity, and reusable adsorbent for the efficient removal of toxic cationic dyes from contaminated water, contributing to sustainable water purification strategies.
开发可持续高效的废水处理吸附剂对解决合成染料对环境的污染具有重要意义。本研究通过β-环糊精（β-CD）与天然多酚槲皮素交联，合成了多孔有机聚合物（BMQ）。采用固体NMR、PXRD、FT-IR、BET、SEM和TGA等手段对BMQ聚合物进行了表征，证实了BMQ聚合物形成了具有丰富活性位点的多孔多功能骨架。批量吸附实验表明，BMQ对阳离子染料具有显著的选择性，对结晶紫（CV）和罗丹明B （RhB）的吸附率为>； 95 %，对Alizarin Red S （ARS）的吸附率为<； 5 %，对Fast sulon Black F （FSB）的吸附率为<； 23.6 %。Langmuir等温线可以很好地描述吸附平衡数据，在323 K下，CV和RhB的最大吸附量（Qmax）分别为234.08 mg/g和255.02 mg/g。动力学研究表明，伪二阶（PSO）模型拟合效果最好。热力学分析证实吸附过程是吸热自发的。此外，BMQ表现出优异的可回收性，在连续五次循环中保持较高的吸附效率（>81.5 %）。这些发现强调了BMQ作为一种强大的、高容量的、可重复使用的吸附剂的潜力，可以有效地去除污染水中的有毒阳离子染料，为可持续的水净化策略做出贡献。
{"title":"Sustainable β-cyclodextrin functionalized porous adsorbent for the selective elimination of cationic dyes from wastewater","authors":"Monark Bhatt , Miraj Patel , Sonal Thakore","doi":"10.1016/j.nxmate.2026.101672","DOIUrl":"10.1016/j.nxmate.2026.101672","url":null,"abstract":"<div><div>The development of sustainable and efficient adsorbents for wastewater treatment is of great importance in addressing environmental pollution caused by synthetic dyes. In this study, a porous organic polymer (BMQ) was synthesized via crosslinking of β-cyclodextrin (β-CD) with the natural polyphenol, quercetin. The BMQ polymer was characterized by solid state NMR, PXRD, FT-IR, BET, SEM and TGA, which confirmed the formation of a porous, multifunctional framework with abundant active sites. Batch adsorption experiments revealed that BMQ exhibits remarkable selectivity toward cationic dyes, achieving > 95 % adsorption of crystal violet (CV) and rhodamine B (RhB), while depicting < 5 % adsorption for Alizarin Red S (ARS) and < 23.6 % for Fast Sulphon Black F (FSB) under optimized conditions. Adsorption equilibrium data were best described by the Langmuir isotherm, yielding maximum adsorption capacities (Q<sub>max</sub>) of 234.08 mg/g and 255.02 mg/g at 323 K for CV and RhB, respectively. Kinetic studies indicated that the pseudo-second-order (PSO) model provided the best fit. Thermodynamic analyses confirmed that the adsorption process is endothermic and spontaneous. Furthermore, BMQ demonstrated excellent recyclability, retaining high adsorption efficiency (>81.5 %) over five successive cycles. These findings highlight the potential of BMQ as a robust, high-capacity, and reusable adsorbent for the efficient removal of toxic cationic dyes from contaminated water, contributing to sustainable water purification strategies.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101672"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079124","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}
Pub Date : 2026-04-01Epub Date: 2026-01-12DOI: 10.1016/j.nxmate.2026.101591
Adhila F. Sanches , Cauã L.R. dos Santos , Gricirene S. Correia , Leonis Luz Lourenço , Severino Alves Júnior , Leonardo T.B. Mendonça
This research describes the development of a luminescent gas sensor using sulfur quantum dots (SQD’s) and an LED, demonstrating the potential of s-dots for rapid and sensitive detection of gases like ethyl mercaptan. The study showcases a low-cost and efficient system for gas detection, utilizing the properties of SQD’s deposited on the LED surface and capture of luminescence variation by a cheap photoresistor. Transmission electron microscopy (TEM), X ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV–vis and photoluminescence characterization technique were used. TEM results showed a nearly spherical-shape and an average size distribution of 2.9 ± 0.02 nm. Characteristic signals of vibrational modes S-S and SO bonds were identified through FTIR. XRD revealed the semi crystalline nature sample’s, with sharp peaks indicating the presence of precursor sulfur and its oxidized compounds alongside a broad band centered at 20°. The tests with the gas sensor for ethyl mercaptan proved highly effective for detecting between 0.5 and 7.0 ppm range, with a response and recovery time of 91 and 31 s, respectively.
{"title":"Development of a luminescent gas sensor based on sulfur quantum dots (SQDs) for ethyl mercaptan detection","authors":"Adhila F. Sanches , Cauã L.R. dos Santos , Gricirene S. Correia , Leonis Luz Lourenço , Severino Alves Júnior , Leonardo T.B. Mendonça","doi":"10.1016/j.nxmate.2026.101591","DOIUrl":"10.1016/j.nxmate.2026.101591","url":null,"abstract":"<div><div>This research describes the development of a luminescent gas sensor using sulfur quantum dots (SQD’s) and an LED, demonstrating the potential of s-dots for rapid and sensitive detection of gases like ethyl mercaptan. The study showcases a low-cost and efficient system for gas detection, utilizing the properties of SQD’s deposited on the LED surface and capture of luminescence variation by a cheap photoresistor. Transmission electron microscopy (TEM), X ray diffraction (XRD), Fourier Transform Infrared (FTIR), UV–vis and photoluminescence characterization technique were used. TEM results showed a nearly spherical-shape and an average size distribution of 2.9 ± 0.02 nm. Characteristic signals of vibrational modes S-S and S<img>O bonds were identified through FTIR. XRD revealed the semi crystalline nature sample’s, with sharp peaks indicating the presence of precursor sulfur and its oxidized compounds alongside a broad band centered at 20°. The tests with the gas sensor for ethyl mercaptan proved highly effective for detecting between 0.5 and 7.0 ppm range, with a response and recovery time of 91 and 31 s, respectively.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101591"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145980666","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}
Pub Date : 2026-04-01Epub Date: 2026-01-20DOI: 10.1016/j.nxmate.2026.101628
Octolia Togibasa , Khaeriah Dahlan , Benny Abraham Bungasalu , Krista Maya Ansanay , Himawan , Lalu Panji Imam Agamawan
Hydroxyapatite (HAp) is gaining significant attention because of the structural similarity to bone mineral and versatile applications in both biomedical and environmental fields. Therefore, this study aimed to synthesize coralline HAp from dead coral collected along the Depapre coast, Papua, through calcination of coral powder and precipitation, followed by surface modification using potassium hydroxide (KOH) at two concentrations (0.5 M and 2.5 M). The structural and physicochemical properties of the materials were characterized by XRD, FTIR, SEM-EDS, and BET analyses. The results showed that CaCO3 was successfully transformed into crystalline HAp with characteristic phosphate and hydroxyl groups, while SEM-EDS had porous morphologies and Ca/P ratios consistent with HAp. BET analysis showed that Depapre-derived coralline HAp had an exceptionally high surface area (>500 m²/g), significantly greater than typical values reported for synthetic HAp. Mild KOH activation (0.5 M) further enhanced porosity and adsorption-relevant surface properties, while concentrated treatment (2.5 M) led to partial re-carbonation and decreased surface area. These results showed that coral-derived HAp from Depapre provided a sustainable and highly porous material with promising potential for heavy metal adsorption and other environmental applications.
{"title":"Enhanced surface properties of coralline hydroxyapatite from natural resources of Depapre Coast, Papua","authors":"Octolia Togibasa , Khaeriah Dahlan , Benny Abraham Bungasalu , Krista Maya Ansanay , Himawan , Lalu Panji Imam Agamawan","doi":"10.1016/j.nxmate.2026.101628","DOIUrl":"10.1016/j.nxmate.2026.101628","url":null,"abstract":"<div><div>Hydroxyapatite (HAp) is gaining significant attention because of the structural similarity to bone mineral and versatile applications in both biomedical and environmental fields. Therefore, this study aimed to synthesize coralline HAp from dead coral collected along the Depapre coast, Papua, through calcination of coral powder and precipitation, followed by surface modification using potassium hydroxide (KOH) at two concentrations (0.5 M and 2.5 M). The structural and physicochemical properties of the materials were characterized by XRD, FTIR, SEM-EDS, and BET analyses. The results showed that CaCO<sub>3</sub> was successfully transformed into crystalline HAp with characteristic phosphate and hydroxyl groups, while SEM-EDS had porous morphologies and Ca/P ratios consistent with HAp. BET analysis showed that Depapre-derived coralline HAp had an exceptionally high surface area (>500 m²/g), significantly greater than typical values reported for synthetic HAp. Mild KOH activation (0.5 M) further enhanced porosity and adsorption-relevant surface properties, while concentrated treatment (2.5 M) led to partial re-carbonation and decreased surface area. These results showed that coral-derived HAp from Depapre provided a sustainable and highly porous material with promising potential for heavy metal adsorption and other environmental applications.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101628"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026208","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}
Pub Date : 2026-04-01Epub Date: 2026-01-19DOI: 10.1016/j.nxmate.2026.101600
Neha Gautam , Gopal Das
The extensive presence of pharmaceutical contaminants provides a significant environmental challenge due to their toxicity and endurance in the aquatic environment. In this study, we developed a novel activated biochar (ABC) using a strong base (KOH) and a weak base (K2CO3) through an impregnation method to enhance the yield, surface functionality and adsorption efficiency of the raw biochar (DBC). The synthesized ABC demonstrated outstanding antioxidant properties and significantly developed porosity. Furthermore, this ABC exhibits enhanced removal of antibiotics (ampicillin, AMP; amoxicillin, AMX; and rifampicin, RFP) from wastewater in comparison to raw DBC. Notably, the ABC achieved equilibrium in just 5 min, indicating an extremely rapid adsorption process. The functional groups of ABC and AMP, AMX, and RFP exhibited substantial surface interaction as validated by FTIR. Additionally, ABC exhibited exceptional adsorption efficiency and demonstrated sustainable reusability over seven cycles. Therefore, this study highlights the potential for converting waste into wealth, offering dual benefits for waste management and pollutant remediation. It also helps achieve waste valorization and circular economy goals.
{"title":"Porous biochar activated with KOH and K2CO3: Efficient antibiotic adsorption and antioxidant activity","authors":"Neha Gautam , Gopal Das","doi":"10.1016/j.nxmate.2026.101600","DOIUrl":"10.1016/j.nxmate.2026.101600","url":null,"abstract":"<div><div>The extensive presence of pharmaceutical contaminants provides a significant environmental challenge due to their toxicity and endurance in the aquatic environment. In this study, we developed a novel activated biochar (ABC) using a strong base (KOH) and a weak base (K<sub>2</sub>CO<sub>3</sub>) through an impregnation method to enhance the yield, surface functionality and adsorption efficiency of the raw biochar (DBC). The synthesized ABC demonstrated outstanding antioxidant properties and significantly developed porosity. Furthermore, this ABC exhibits enhanced removal of antibiotics (ampicillin, AMP; amoxicillin, AMX; and rifampicin, RFP) from wastewater in comparison to raw DBC. Notably, the ABC achieved equilibrium in just 5 min, indicating an extremely rapid adsorption process. The functional groups of ABC and AMP, AMX, and RFP exhibited substantial surface interaction as validated by FTIR. Additionally, ABC exhibited exceptional adsorption efficiency and demonstrated sustainable reusability over seven cycles. Therefore, this study highlights the potential for converting waste into wealth, offering dual benefits for waste management and pollutant remediation. It also helps achieve waste valorization and circular economy goals.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101600"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146026319","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}
Pub Date : 2026-04-01Epub Date: 2026-02-03DOI: 10.1016/j.nxmate.2026.101685
M. Tamboura , E.A. Gosteva , M.V. Chichkov , B. Tamboura , D.S. Khlebnikova
In this study, we evaluated poly(n-butyl methacrylate) (PnBMA) as a promising alternative to traditionally used poly(methyl methacrylate) (PMMA) for graphene transfer. We synthesized PnBMA on laboratory condition and characterized it using Raman spectroscopy and ¹H NMR, confirming its molecular structure. Transfer of graphene was performed using PnBMA and the results were compared with PMMA transfer. Raman analyses and ID/IG mappings revealed that graphene transferred with PnBMA exhibits superior uniformity and fewer defects induced by the transfer process. This improvement is attributed to PnBMA's structure. These results open promising prospects for the use of PnBMA in graphene transfer applications, potentially improving the quality and uniformity of transferred graphene layers while reducing production costs. This study significantly contributes to the development of more efficient and potentially less expensive methods for graphene transfer, essential for the fabrication of advanced electronic devices based on graphene.
{"title":"Evaluation of poly(n-butyl methacrylate) as an alternative support for graphene transfer: Characterizations and performances","authors":"M. Tamboura , E.A. Gosteva , M.V. Chichkov , B. Tamboura , D.S. Khlebnikova","doi":"10.1016/j.nxmate.2026.101685","DOIUrl":"10.1016/j.nxmate.2026.101685","url":null,"abstract":"<div><div>In this study, we evaluated poly(n-butyl methacrylate) (PnBMA) as a promising alternative to traditionally used poly(methyl methacrylate) (PMMA) for graphene transfer. We synthesized PnBMA on laboratory condition and characterized it using Raman spectroscopy and ¹H NMR, confirming its molecular structure. Transfer of graphene was performed using PnBMA and the results were compared with PMMA transfer. Raman analyses and I<sub>D</sub>/I<sub>G</sub> mappings revealed that graphene transferred with PnBMA exhibits superior uniformity and fewer defects induced by the transfer process. This improvement is attributed to PnBMA's structure. These results open promising prospects for the use of PnBMA in graphene transfer applications, potentially improving the quality and uniformity of transferred graphene layers while reducing production costs. This study significantly contributes to the development of more efficient and potentially less expensive methods for graphene transfer, essential for the fabrication of advanced electronic devices based on graphene.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101685"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173677","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}
The untreated tannery hair-burning liming sludge (THBLS) harms the ecosystem. The treatment and management of THBLS provide considerable complications. This study examined the removal of dye from real post-tanning wastewater of a tannery utilising biochar generated from THBLS. Biochar was characterized by proximate analysis, EDS, SEM, surface area measurement, XRD, FTIR, and pHpzc. The dye adsorption capability of biochar obtained from real post-tanning wastewater was examined under varying temperature, contact time, biochar quantity per batch, and relative solution pH. The biochar removed 87.487 % of the dye at a pH of 7.792, using 0.350 g of biochar in 40 mL of post-tanning wastewater for 25 min at 40ºC. The reductions of BOD5, COD, and salinity were 92.193 %, 87.429 %, and 53.198 %, respectively. The Freundlich isotherm model and pseudo-second-order kinetic model exhibited a strong fit to the experimental data, indicating dye adsorption was controlled in chemisorption. Thermodynamic analyses indicated that dye adsorption onto biochar was a feasible, exothermic, and spontaneous process. The adsorption properties of biochar were observed in the hydrogen bonds, electrostatic, π-π, and n-π interactions with dyes. The produced biochar can be reutilized following an alkaline wash with minimal functional degradation. Thus, the application of THBLS biochar can efficiently remove acid dyes from tannery post-tanning dyeing wastewater, thereby reducing environmental pollution.
{"title":"Biochar from tannery liming sludge for dyeing wastewater treatment: Process optimization, performance evaluation, kinetics, and isotherm studies","authors":"Sadia Mim , Md. Abul Hashem , Md. Mukimujjaman Miem , Md. Aminur Rahman","doi":"10.1016/j.nxmate.2026.101674","DOIUrl":"10.1016/j.nxmate.2026.101674","url":null,"abstract":"<div><div>The untreated tannery hair-burning liming sludge (THBLS) harms the ecosystem. The treatment and management of THBLS provide considerable complications. This study examined the removal of dye from real post-tanning wastewater of a tannery utilising biochar generated from THBLS. Biochar was characterized by proximate analysis, EDS, SEM, surface area measurement, XRD, FTIR, and pHpzc. The dye adsorption capability of biochar obtained from real post-tanning wastewater was examined under varying temperature, contact time, biochar quantity per batch, and relative solution pH. The biochar removed 87.487 % of the dye at a pH of 7.792, using 0.350 g of biochar in 40 mL of post-tanning wastewater for 25 min at 40ºC. The reductions of BOD<sub>5</sub>, COD, and salinity were 92.193 %, 87.429 %, and 53.198 %, respectively. The Freundlich isotherm model and pseudo-second-order kinetic model exhibited a strong fit to the experimental data, indicating dye adsorption was controlled in chemisorption. Thermodynamic analyses indicated that dye adsorption onto biochar was a feasible, exothermic, and spontaneous process. The adsorption properties of biochar were observed in the hydrogen bonds, electrostatic, π-π, and n-π interactions with dyes. The produced biochar can be reutilized following an alkaline wash with minimal functional degradation. Thus, the application of THBLS biochar can efficiently remove acid dyes from tannery post-tanning dyeing wastewater, thereby reducing environmental pollution.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101674"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173678","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}
Pub Date : 2026-04-01Epub Date: 2026-02-10DOI: 10.1016/j.nxmate.2026.101707
Jorge L. Sánchez-Orozco , Rocio Aguirre-Loredo , Lorena García-Uriostegui , H. Iván Meléndez-Ortiz
During the last decades, nanocarriers-based therapy has gained great interest in the field of drug delivery because of some advantages including great surface area, enhanced cellular uptake, and prolonged and targeted release. Metallic (e.g. gold), metal oxides, (such as Fe3O4, CuO, ZnO), non-metal oxides (e.g. SiO2), and carbon-based nanoparticles (such as graphene oxide) have been found among the most common nanomaterials used as drug nanocarriers. Functionalizing these nanomaterials with polysaccharides can result in hybrid nanocarriers with enhanced bioavailability, improved pharmacokinetic profiles, and greater selectivity for the target site. Polysaccharides such as chitosan, cellulose, alginate, hyaluronic acid, carrageenans, cyclodextrins, and natural gums are particularly well-suited for this purpose due to their biocompatibility, biodegradability, stimuli-responsiveness, and gelling properties. This comprehensive review provides an overview of the advancements in the development of nanocarriers based on polysaccharides and diverse inorganic nanoparticles for the preparation of drug delivery systems. Also, it examines the properties, benefits, and limitations of various polysaccharides and nanoparticles, explores the potential of their hybrid nanocarriers, and highlights current challenges and future opportunities in the biomedical field.
{"title":"Drug delivery systems based on polysaccharides and inorganic nanoparticles: A comprehensive review on their therapeutic applications and recent advances","authors":"Jorge L. Sánchez-Orozco , Rocio Aguirre-Loredo , Lorena García-Uriostegui , H. Iván Meléndez-Ortiz","doi":"10.1016/j.nxmate.2026.101707","DOIUrl":"10.1016/j.nxmate.2026.101707","url":null,"abstract":"<div><div>During the last decades, nanocarriers-based therapy has gained great interest in the field of drug delivery because of some advantages including great surface area, enhanced cellular uptake, and prolonged and targeted release. Metallic (e.g. gold), metal oxides, (such as Fe<sub>3</sub>O<sub>4</sub>, CuO, ZnO), non-metal oxides (e.g. SiO<sub>2</sub>), and carbon-based nanoparticles (such as graphene oxide) have been found among the most common nanomaterials used as drug nanocarriers. Functionalizing these nanomaterials with polysaccharides can result in hybrid nanocarriers with enhanced bioavailability, improved pharmacokinetic profiles, and greater selectivity for the target site. Polysaccharides such as chitosan, cellulose, alginate, hyaluronic acid, carrageenans, cyclodextrins, and natural gums are particularly well-suited for this purpose due to their biocompatibility, biodegradability, stimuli-responsiveness, and gelling properties. This comprehensive review provides an overview of the advancements in the development of nanocarriers based on polysaccharides and diverse inorganic nanoparticles for the preparation of drug delivery systems. Also, it examines the properties, benefits, and limitations of various polysaccharides and nanoparticles, explores the potential of their hybrid nanocarriers, and highlights current challenges and future opportunities in the biomedical field.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101707"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173616","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}
Pub Date : 2026-04-01Epub Date: 2026-02-11DOI: 10.1016/j.nxmate.2026.101721
Sneha Sonari , Hirendra Das , Pranjal Saikia
Hydrogen (H2) energy is gaining attention as a key component in the global push to achieve net-zero carbon emissions by 2050, offering a sustainable alternative to fossil fuels, which are primary contributors to global warming. H2 does not naturally exist in its elemental form and must be synthesized cost-effectively from hydrogen-rich compounds. Among available methods, photocatalytic and electrocatalytic water splitting are viewed as particularly promising for sustainable H2 production. Historically, noble metals such as platinum (Pt), palladium (Pd), ruthenium (Ru), iridium (Ir), and rhodium (Rh) have demonstrated superior catalytic activity for the hydrogen evolution reaction (HER). However, their scarcity and high cost have necessitated the search for noble metal-free alternatives. Transition metal nitrides (TMNs) have emerged as promising substitutes, offering excellent catalytic performance, durability, and cost-effectiveness, making them suitable for both HER and oxygen evolution reaction (OER). Properties like active metal centres, nitrogen functionalities, and porous features such as surface area, pore-volume, and tunable pore size of TMNs could play an important role in electrochemical and photocatalytic hydrogen production. Additionally, TMNs exhibit desirable properties for applications beyond catalysis, including energy storage, optoelectronics, and wear-resistant coatings. This review presents recent advancements in the synthesis and structural design of TMNs, with a particular focus on their roles in electrocatalytic and photocatalytic H2 production. By examining various synthesis techniques and performance characteristics, this review aims to provide researchers with valuable insights into the design and application of TMN-based catalysts, supporting the broader goal of sustainable hydrogen energy production.
{"title":"Transition metal nitrides for sustainable hydrogen production: Recent advances, catalytic mechanisms, and future prospects","authors":"Sneha Sonari , Hirendra Das , Pranjal Saikia","doi":"10.1016/j.nxmate.2026.101721","DOIUrl":"10.1016/j.nxmate.2026.101721","url":null,"abstract":"<div><div>Hydrogen (H<sub>2</sub>) energy is gaining attention as a key component in the global push to achieve net-zero carbon emissions by 2050, offering a sustainable alternative to fossil fuels, which are primary contributors to global warming. H<sub>2</sub> does not naturally exist in its elemental form and must be synthesized cost-effectively from hydrogen-rich compounds. Among available methods, photocatalytic and electrocatalytic water splitting are viewed as particularly promising for sustainable H<sub>2</sub> production. Historically, noble metals such as platinum (Pt), palladium (Pd), ruthenium (Ru), iridium (Ir), and rhodium (Rh) have demonstrated superior catalytic activity for the hydrogen evolution reaction (HER). However, their scarcity and high cost have necessitated the search for noble metal-free alternatives. Transition metal nitrides (TMNs) have emerged as promising substitutes, offering excellent catalytic performance, durability, and cost-effectiveness, making them suitable for both HER and oxygen evolution reaction (OER). Properties like active metal centres, nitrogen functionalities, and porous features such as surface area, pore-volume, and tunable pore size of TMNs could play an important role in electrochemical and photocatalytic hydrogen production. Additionally, TMNs exhibit desirable properties for applications beyond catalysis, including energy storage, optoelectronics, and wear-resistant coatings. This review presents recent advancements in the synthesis and structural design of TMNs, with a particular focus on their roles in electrocatalytic and photocatalytic H<sub>2</sub> production. By examining various synthesis techniques and performance characteristics, this review aims to provide researchers with valuable insights into the design and application of TMN-based catalysts, supporting the broader goal of sustainable hydrogen energy production.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101721"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173620","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}
Rapid and selective determination of lincomycin in complex food matrices is essential for residue monitoring. We present a glassy carbon electrode modified with a molecularly imprinted poly(3,4-ethylenedioxythiophene) (MIP-PEDOT) film, electropolymerized at 10 °C. Fabrication (template/monomer ratio, total monomer level, scan rate, cycle number) and DPV conditions were optimized. The sensor affords a linear response from 0.00195 to 0.50 mM and a limit of detection (LOD) of 0.013 µM. Selectivity tests versus amoxicillin and azithromycin show high selectivity for lincomycin molecule. FTIR confirms the presence of both PEDOT and lincomycin features; SEM documents surface evolution across fabrication steps. Spike–recovery in milk and meat demonstrates practical applicability, with recoveries ∼95–97 % (milk) and ∼92–94 % (meat) and RSD ≤ 9.5 % (n = 10). The MIP-PEDOT/GCE platform combines high selectivity and simple, reagent-lean preparation, supporting its use for rapid screening of lincomycin residues.
{"title":"Voltammetric determination of lincomycin using a molecularly imprinted sensor based on low-temperature electropolymerized poly(3,4-ethylenedioxythiophene)","authors":"Y.A. Perfilova, M.I. Nazyrov, Y.R. Abdullin, N.S. Umutbaev, L.R. Zagitova, R.A. Zilberg","doi":"10.1016/j.nxmate.2026.101671","DOIUrl":"10.1016/j.nxmate.2026.101671","url":null,"abstract":"<div><div>Rapid and selective determination of lincomycin in complex food matrices is essential for residue monitoring. We present a glassy carbon electrode modified with a molecularly imprinted poly(3,4-ethylenedioxythiophene) (MIP-PEDOT) film, electropolymerized at 10 °C. Fabrication (template/monomer ratio, total monomer level, scan rate, cycle number) and DPV conditions were optimized. The sensor affords a linear response from 0.00195 to 0.50 mM and a limit of detection (LOD) of 0.013 µM. Selectivity tests versus amoxicillin and azithromycin show high selectivity for lincomycin molecule. FTIR confirms the presence of both PEDOT and lincomycin features; SEM documents surface evolution across fabrication steps. Spike–recovery in milk and meat demonstrates practical applicability, with recoveries ∼95–97 % (milk) and ∼92–94 % (meat) and RSD ≤ 9.5 % (n = 10). The MIP-PEDOT/GCE platform combines high selectivity and simple, reagent-lean preparation, supporting its use for rapid screening of lincomycin residues.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101671"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079123","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}
Energy shortages have become a global issue in the twenty-first century, as energy consumption continues to rise at an alarming rate and the fossil fuel supply is depleted. Thus, producing sustainable renewable energy to replace fossil fuels is essential to resolve energy shortages. Solar energy is the most promising, easily accessible, reusable, fresh and sustainable alternative to fossil fuels. Organic-inorganic halide perovskite solar cells (PSCs) are a rising star in third-generation photovoltaic technology, with excellent power conversion efficiencies (PCEs). However, the most extensively researched perovskites contain poisonous lead, a cumulative toxicant to human bodies that may limit their broad use. Despite multiple alternative metal ions to replace Pb, tin is used with an efficiency of over 30 %. This study uses density functional theory (DFT) to examine the strain's effect and spin-orbit coupling (SOC) on structures and properties of FASnI2Br perovskites. FASnI2Br perovskites show semiconducting behavior having a direct bandgap of 1.11 eV and 0.75 eV, excluding and including SOC, respectively. According to electronic studies, the B-site p-orbital influences the CBB (conduction band bottom), whereas the X-site p-orbitals impact the VBT (valence band top). Generally, tensile strains increase bandgaps, whereas compressive strains reduce them. The SOC reduces the bandgap and effective mass of the charge carrier. At zero frequency, the real dielectric constant value is 4.62, and the highest value is 7.19 under strain-free conditions. The highest loss values also vary depending on the strain. The maximum loss value for unstrained cubic FASnI2Br structure is 1.36 at a photon energy of 16.87 eV. For the no-strained structures, the absorption coefficient is 0.055 × 104, which also increased with bandgap, i,e., with increasing strains. The FASnI2Br perovskites, with their remarkable optical and electronic properties, hold good promise for lead-free optoelectronic uses, including light-emitting diodes, solar power plants, laser beams, and optical sensors.
{"title":"Mutual effect of strains and spin-orbit coupling on structural, electronic, transport and optical characteristics of FASnI2Br perovskites","authors":"Nusrat Jahan , Farah B.H. Pritu , Nourin Arobi , Humayun Kabir , Md Rasidul Islam , M.Mahbubur Rahman","doi":"10.1016/j.nxmate.2026.101641","DOIUrl":"10.1016/j.nxmate.2026.101641","url":null,"abstract":"<div><div>Energy shortages have become a global issue in the twenty-first century, as energy consumption continues to rise at an alarming rate and the fossil fuel supply is depleted. Thus, producing sustainable renewable energy to replace fossil fuels is essential to resolve energy shortages. Solar energy is the most promising, easily accessible, reusable, fresh and sustainable alternative to fossil fuels. Organic-inorganic halide perovskite solar cells (PSCs) are a rising star in third-generation photovoltaic technology, with excellent power conversion efficiencies (PCEs). However, the most extensively researched perovskites contain poisonous lead, a cumulative toxicant to human bodies that may limit their broad use. Despite multiple alternative metal ions to replace Pb, tin is used with an efficiency of over 30 %. This study uses density functional theory (DFT) to examine the strain's effect and spin-orbit coupling (SOC) on structures and properties of FASnI<sub>2</sub>Br perovskites. FASnI<sub>2</sub>Br perovskites show semiconducting behavior having a direct bandgap of 1.11 eV and 0.75 eV, excluding and including SOC, respectively. According to electronic studies, the B-site p-orbital influences the CBB (conduction band bottom), whereas the X-site p-orbitals impact the VBT (valence band top). Generally, tensile strains increase bandgaps, whereas compressive strains reduce them. The SOC reduces the bandgap and effective mass of the charge carrier. At zero frequency, the real dielectric constant value is 4.62, and the highest value is 7.19 under strain-free conditions. The highest loss values also vary depending on the strain. The maximum loss value for unstrained cubic FASnI<sub>2</sub>Br structure is 1.36 at a photon energy of 16.87 eV. For the no-strained structures, the absorption coefficient is 0.055 × 10<sup>4</sup>, which also increased with bandgap, <em>i,e.,</em> with increasing strains. The FASnI<sub>2</sub>Br perovskites, with their remarkable optical and electronic properties, hold good promise for lead-free optoelectronic uses, including light-emitting diodes, solar power plants, laser beams, and optical sensors.</div></div>","PeriodicalId":100958,"journal":{"name":"Next Materials","volume":"11 ","pages":"Article 101641"},"PeriodicalIF":0.0,"publicationDate":"2026-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146079234","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}
扫码关注我们
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号