Article
Environmental Sciences
G. Ramalingam, C. Maria Magdalane, B. Arjun Kumar, R. Yuvakkumar, G. Ravi, A. Irudaya Jothi, Naresh Kumar Rotte, G. Murugadoss, Antony Ananth
Summary: Cadmium selenide (CdSe) semiconductor nanorods were prepared using hydrazine hydrate and ammonia as reducing agents in a hydrothermal process, resulting in reduced stacking faults and high photocatalytic efficiency. The CdSe nanorods exhibited a crystalline size of 20-30 nm and a bandgap of 2.17 eV, with the presence of oxygen vacancy defects indicated in the photoluminescence spectrum.
ENVIRONMENTAL RESEARCH
(2022)
Article
Materials Science, Ceramics
T. Govindaraj, C. Mahendran, R. Marnadu, Mohd Shkir, V. S. Manikandan
Summary: Novel Gadolinium doped WO3 nanorods (Gd@WO3 NRs) were synthesized through a facile hydrothermal method and showed significant enhancement in photocatalytic activity, especially with 5 wt% Gd doping which improved the separation of photogenerated electron-hole pairs. Recycling test confirmed the stability of the photocatalyst after three cycles, making Gd@WO3 NRs a superior catalyst for reducing organic pollutants.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Beibei Shan, Linhu Li, Yawen Zhao, Haitao Wang, Ming Li
Summary: A novel class of Au@Au-Ag dot-in-cubic nanoframes (DCFs) with spectrally tunable plasmonic properties beyond 1400 nm while maintaining a small size has been reported for in vivo photodiagnostics. The synthesis of Au@Au-Ag DCFs is based on facet-selective etching of Ag atoms and co-deposition of Au and Ag atoms, allowing for controllable tailoring of the structure geometry by adjusting silver nitrate and chloroauric acid concentrations. Superior performances of Au@Au-Ag DCFs in in vitro and in vivo NIR-II photoacoustic imaging have been demonstrated, along with remarkable NIR-II surface-enhanced Raman spectroscopy (SERS) activity.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Saleh Aghajani, Angelo Accardo, Marcel Tichem
Summary: This paper demonstrates the ability to tune the optical behavior of gold nanoparticles through a low-temperature thermal treatment, with potential applications in optical sensor technologies like surface-enhanced Raman scattering and metal-enhanced fluorescence spectroscopy. The study highlights the importance of selective deposition of 3D gold nanostructures for optimizing optical response and enhancing Raman signals for specific bio-analytes.
Article
Nanoscience & Nanotechnology
Jong-Guk Ahn, Gyeonghun Yeo, Yeji Han, Younghee Park, Jong Wook Hong, Hyunseob Lim
Summary: Using an atomically thin hexagonal boron nitride (h-BN) shielding layer between Au nanoparticles and Au substrates can prevent electrical shorts, improving the sensitivity of Raman detection.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Inorganic & Nuclear
Tejovathi Gudipati, M. Burhanuz Zaman, Pragya Singh, Rajaram Poolla
Summary: In this study, CuO nanostructures were biogenically synthesized using Tamarindus indica L fruit extract. The nanostructures showed potential applications in photocatalytic dye degradation.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Chemistry, Analytical
Ling Li, Longcheng Zhang, Lichen Gou, Siqi Wei, Xiandeng Hou, Li Wu
Summary: Metal-semiconductor composites are widely used as SERS substrates, but their limited stability and poor active sites hinder their commercial application. In this study, a novel self-supporting flexible SERS substrate, Au@CoP/CC, was developed. The substrate exhibited excellent corrosion resistance and a low limit of detection using rhodamine 6G as a model dye. Finite-difference time-domain simulation results showed that the substrate can provide regions with intense local electric field enhancement. Moreover, the Au@CoP/CC substrate can degrade target organic dyes under visible light irradiation, enabling self-cleaning and reproduction of SERS-active substrates.
ANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Vishal Dhiman, Suresh Kumar, Manmeet Kaur, Ranjana Sharma, Tarun Chandel, Deepesh Bhardwaj, Dixit Prasher
Summary: This study demonstrates the significant degradation efficiency of solvothermally synthesized Cu2FeSnS4 nanostructures against rhodamine B dye. The formation of single-phase tetragonal stannite structure of CFTS nanoparticles was confirmed by XRD analysis. The excellent RhB degradation efficiency of 92.1% under visible light within 05 min was achieved under synergetic effect of stirring and synthesized CFTS material.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Hajir Hilal, Mohammadnavid Haddadnezhad, Myeong Jin Oh, Insub Jung, Sungho Park
Summary: Elongated pseudohollow nanoframes composed of four rectangular plates enclosing the sides and two open-frame ends with four ridges pointing at the tips for near-field focusing are reported. The nanoframes are hollow inside, allowing the gaseous analyte to penetrate through the entire architecture and enabling efficient detection of gaseous analytes when combined with Raman spectroscopy. The significant enhancement in SERS is attributed to the presence of a flat solid terrace for a large surface area, sharp edges and vertices for strong electromagnetic near-field collection, and open frames for effective analyte transport and capture.
Article
Chemistry, Multidisciplinary
Andrea Brognara, Beatrice R. Bricchi, Ludovic William, Ovidiu Brinza, Maria Konstantakopoulou, Andrea Li Bassi, Matteo Ghidelli, Nathalie Lidgi-Guigui
Summary: The photo-induced enhanced Raman spectroscopy (PIERS) effect occurs when plasmonic nanoparticles on a semiconductor are illuminated by UV light before Raman measurement. The PIERS effect typically lasts for about an hour, with the proposed mechanism being the creation of oxygen vacancies in the semiconductor to facilitate charge transfer. However, this hypothesis has not been experimentally confirmed. In this study, gold nanoparticles co-deposited with porous TiO2 as a PIERS substrate exhibit the highest measured intensity and significantly longer duration (at least 8 days). Cathodoluminescence measurements reveal two distinct mechanisms for co-deposited and drop-casted gold nanoparticles, with the oxygen vacancies hypothesis leaning towards confirmation for the latter, while the narrowing of the depletion zone explains the prolonged PIERS effect.
Article
Chemistry, Applied
Anh-Tuan Vu, Thi Anh Tuyet Pham, Xuan Truong Do, Van Anh Tran, Van Duong Le, Duc Duc Truong, The Huu Nguyen, Minh Viet Nguyen
Summary: The photocatalytic performance and reaction mechanism of gold nanoparticles/ZnO composites were studied, demonstrating that Au/ZnO composites exhibit higher degradation efficiency and reaction rate, influenced by oxidizing agents and reaction parameters.
ADSORPTION SCIENCE & TECHNOLOGY
(2021)
Article
Multidisciplinary Sciences
C. Awada, C. Dab, M. G. Grimaldi, A. Alshoaibi, F. Ruffino
Summary: This study highlights the high optical enhancement observed in Ag/Au alloys and porous gold nanostructures using SERS. The formation of Ag/Au alloy particles and subsequent dealloying process leading to the formation of Au nanoporous particles were observed. The highly enhancement factor in porous gold nanostructures is attributed to the presence of dense strong hot spots and large specific area, showing promising potential for SERS applications.
SCIENTIFIC REPORTS
(2021)
Article
Materials Science, Composites
Wenhao Qian, Tao Song, Mao Ye, Xiaoyu Huang, Yongjun Li, Bingjie Hao
Summary: This study successfully prepared nanocomposites of nGO and gold nanoparticles, and confirmed their sensitive and efficient SERS detection performance towards p-phenylenediamine, flavin adenine dinucleotide, and crystal violet molecules. These nanocomposites exhibit good dispersity, especially suitable for SERS sensing applications in environmental and clinical samples.
COMPOSITES COMMUNICATIONS
(2021)
Article
Chemistry, Multidisciplinary
Jessi E. S. van der Hoeven, Harith Gurunarayanan, Maarten Bransen, D. A. Matthijs de Winter, Petra E. de Jongh, Alfons van Blaaderen
Summary: The study introduces a new type of functional assembly called supraparticles, which are formed by the solvent-driven assembly of silica-coated gold nanorods into spherical ensembles. The plasmonic coupling and mass transport are controlled by adjusting the thickness and porosity of the silica shells. These novel materials have the potential to play an important role in sensing applications.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Assanee Somdee, Surangkana Wannapop
Summary: This study investigated the enhancement of ZnO material's photocatalytic properties through the introduction of ZnWO4 and gold nanoparticles onto ZnO nanorods. The Au/ZnWO4/ZnO sample exhibited the best photocatalytic performance.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2022)
Article
Food Science & Technology
Cheng Wang, Yingying Sun, Yanyu Zhou, Yiwen Cui, Weirong Yao, Hang Yu, Yahui Guo, Yunfei Xie
Summary: A novel method for the determination of peroxide value (PV) of nuts based on PLSR and RF-PLSR model was established, showing that Raman spectroscopy combined with chemometrics could be used to establish a rapid and precise method for the determination of oil oxidation index.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Applied
M. Graca Dias, Elsa Vasco, Francisco Ravasco, Lufsa Oliveira
Summary: This study estimated the vitamin D intake of "adults" and "elderly" populations in Portugal using the TDS methodology. The results showed that the majority of people had inadequate vitamin D intake, well below the Dietary Reference Values.
Article
Chemistry, Applied
Yanan Wang, Jiachen Shi, Yong-Jiang Xu, Chin-Ping Tan, Yuanfa Liu
Summary: This study investigates the variations in lipid digestion profiles among individuals of different ages using in vitro digestion models. The findings suggest that adults have a more comprehensive lipid digestion compared to infants, and infants tend to release shorter chain length and more saturated free fatty acids during digestion. Additionally, the particle sizes in the stomach of the elderly were consistently larger. This study enhances our understanding of how lipids with different degrees of unsaturation undergo digestion in diverse age groups.
Article
Chemistry, Applied
Hyunjong Yu, Huisu Kim, Pahn-Shick Chang
Summary: Chitosan-pectin emulsion-filled hydrogel (EFH) was developed to enhance the bioaccessibility of lipophilic bioactive compounds through intestinal delivery. The EFH, prepared without crosslinking agents, demonstrated improved mechanical strength and compactness with higher pectin concentration. It retained the emulsion at pH 2.0 and released it at pH 7.4, resulting in enhanced release of free fatty acids and improved bioaccessibility of curcumin.
Article
Chemistry, Applied
Tongze Zhang, Siqi Hong, Jia-Rong Zhang, Pin-He Liu, Siyi Li, Zixian Wen, Jianwei Xiao, Guirong Zhang, Olivier Habimana, Nagendra P. Shah, Zhongquan Sui, Harold Corke
Summary: Lactic acid fermentation significantly affects the morphology and physicochemical properties of proso millet starch, including the formation of surface indentations and small pores, decrease in gelatinization temperatures, and changes in hardness and adhesiveness.
Article
Chemistry, Applied
Liqin Kong, Feng Hong, Peng Luan, Yiping Chen, Yaoze Feng, Ming Zhu
Summary: This study presents a novel impedance biosensor using composite nanomaterials and T1R1 as a signal probe, which can competitively and ultra-sensitively detect umami intensity. The biosensor exhibits exceptional analytical performance and is suitable for food flavor evaluation.
Article
Chemistry, Applied
Kunying Lv, Yixin Yang, Qilong Li, Ran Chen, Liang Deng, Yiwei Zhang, Ning Jiang
Summary: Horse's milk, with its high nutritional value and low allergenic proteins, could be a substitute for cow's milk in infant consumption. A proteomic method was used to identify and compare milk fat globule membrane (MFGM) and whey proteins from different horse breeds. The study found differences in protein composition and functionality, which could support the development of formulas more suitable for human infants.
Article
Chemistry, Applied
Enrique Jacobo Diaz-Montana, Helene Brignot, Ramon Aparicio-Ruiz, Thierry Thomas- Danguin, Maria Teresa Morales
Summary: Sensory perception of virgin olive oil is influenced by phenols and volatiles, which are affected by the composition of the oil and biological factors. This study investigated the effect of saliva and phenols on the release of volatiles, and found that the presence of phenols decreased the release of saturated volatiles.
Article
Chemistry, Applied
Wei Zhou, Rui Zhang, Zhen Cai, Fangfang Wu, Yong Hu, Chao Huang, Kun Hu, Yun Chen
Summary: Environmentally friendly and outstanding pH-responsive cationic starch nanoparticles (CSNP) were prepared from pH-sensitive starch. CSNP exhibited nanosize and regular sphere, highly free-flowing molecular chains, and demonstrated excellent pH responsiveness through multiple emulsion/demulsification transitions.
Article
Chemistry, Applied
Andrea Koo, Vinayak Ghate, Weibiao Zhou
Summary: This study suggests that direct seeding may negatively affect the nutritional quality of crops, causing a decrease in ascorbic acid, vitamin K, and total glucosinolate content.
Article
Chemistry, Applied
Tonghao Du, Yazhou Xu, Xiaoyan Xu, Shijin Xiong, Linli Zhang, Biao Dong, Jinqing Huang, Tao Huang, Muyan Xiao, Tao Xiong, Mingyong Xie
Summary: This study successfully improved the ACE inhibitory activity of black sesame seeds by fermenting them with Lactobacillus Plantarum NCU116 and hydrolyzing them using acid protease. The RF-PSO model was used to predict the ACE inhibitory activity during the hydrolysis process. Eight peptides with ACE inhibitory activity were identified from fermented black sesame seed hydrolysates after separation and screening.
Article
Chemistry, Applied
Yao Liu, Songyi Lin, Kexin Liu, Shan Wang, Qiaozhen Liu, Na Sun
Summary: This study analyzed the structural changes of shrimp proteins during digestion, predicted the immunodominant epitopes, and validated their allergenicity. The results showed that shrimp proteins were degraded into peptides during digestion, but still carried IgE epitopes that trigger allergic reactions.
Article
Chemistry, Applied
Tiantian Fu, Hongwei Cao, Yu Zhang, Xiao Guan
Summary: This study investigates the impact of milling on the active components in rice, with a focus on the stability and bioaccessibility of phenols, VB1, and alpha-GABA during cooking and digestion. The findings show that milling exacerbates the instability of gamma-GABA during cooking and VB1 during digestion, and it affects the bioaccessibility of these active compounds.
Article
Chemistry, Applied
Zhihao Yang, Yanru Hou, Min Zhang, Puxin Hou, Chang Liu, Lu Dou, Xiaoyu Chen, Lihua Zhao, Lin Su, Ye Jin
Summary: This study investigated the molecular mechanism of feeding regimes on lamb flavor by using TMT labeling combined with MS. The results showed that pasture-fed groups had higher levels of amino acids and volatile flavor substances compared to concentrate-fed groups. Additionally, several differentially abundant proteins associated with lamb flavor were identified.
Article
Chemistry, Applied
Zixuan Xie, De Zhang, Junyu Zhu, Qianqian Luo, Jun Liu, Jingtao Zhou, Xiaoyong Wang, Yuqiong Chen, Zhi Yu, Dejiang Ni
Summary: This study investigated the acidification of aroma-enhanced black tea during storage. Analysis of non-volatile substances and organic acids using UPLC-Q-TOF/MS and HPLC revealed a decrease in soluble sugars and amino acids, while an increase in organic acids such as oxalic acid, malic acid, and quinic acid. In vitro experiments further demonstrated that the acidification is a result of the decomposition of sugars and amino acids by heating, as well as the oxidation of aromatic aldehydes. Additionally, the study showed that the taste composition of tea infusion is altered, with reduced amino acids, catechins, soluble sugars, and flavonoids. This research provides a theoretical basis for improving the quality of black tea.
Article
Chemistry, Applied
Lin Wang, Falai Ma, Zihan Li, Yan Zhang
Summary: This study developed time-temperature integrators based on amyloglucosidase@Cu3(PO4)2 nanoflowers for monitoring the freshness of chilled pork. The results showed that the integrators were highly reliable and accurate in predicting the quality of chilled pork.