@article{lv_li_lu_wang_sun_liu_mu_ma_wang_2022, title={Effects of organic acids on color intensification, thermodynamics, and copigmentation interactions with anthocyanins}, volume={396}, ISSN={["1873-7072"]}, DOI={10.1016/j.foodchem.2022.133691}, abstractNote={Anthocyanins are attractive alternatives to synthetic colorants, but their low stability impedes practical applications. Intermolecular copigmentation can enhance both color intensity and stability. Herein, the copigmentation interactions of Kyoho grape skin anthocyanins (KSA) or cyanidin-3-O-glucoside (Cy-G) with organic acids were investigated. Color enhancement was evaluated at different acid molar ratios and treatment temperatures. The optimal copigmentation effects were observed for KSA/tannic acid (1:150) and Cy-G/tannic acid (1:100). Based on enthalpy variation, KSA/ferulic acid and Cy-G/ferulic acid exhibited the highest stability. The distinct color differences observed in the presence of different acids were attributed to structural effects. The influence of ferulic acid on various anthocyanins was also evaluated using theoretical approaches. Owing to steric hindrance, the acyl groups in KSA affected the spatial conformation, hydrogen bonding, and van der Waals interactions of the complexes. Further, hydroxyl groups decreased complex stability. These findings contribute to furthering the understanding of copigmentation effects.}, journal={FOOD CHEMISTRY}, author={Lv, Xiaorui and Li, Liling and Lu, Xiaomin and Wang, Wenxiu and Sun, Jianfeng and Liu, Yaqiong and Mu, Jianlou and Ma, Qianyun and Wang, Jie}, year={2022}, month={Dec} } @article{zhang_tian_wang_liu_lu_guo_jin_xiao_song_2022, title={Impact of degree of substitution of quaternary cellulose on the adsorption on charged surfaces and associated thermodynamics}, ISSN={["1572-882X"]}, DOI={10.1007/s10570-022-04975-y}, journal={CELLULOSE}, author={Zhang, Xinyu and Tian, Jing and Wang, Peipei and Liu, Tian and Lu, Xiaomin and Guo, Jiaqi and Jin, Yongcan and Xiao, Huining and Song, Junlong}, year={2022}, month={Dec} } @article{lv_lu_wang_feng_2021, title={Nanocellulose-Based Functional Materials: From Chiral Photonics to Soft Actuator and Energy Storage}, ISSN={["1616-3028"]}, DOI={10.1002/adfm.202104991}, abstractNote={AbstractNanocellulose is currently in the limelight of extensive research from fundamental science to technological applications owing to its renewable and carbon‐neutral nature, superior biocompatibility, tailorable surface chemistry, and unprecedented optical and mechanical properties. Herein, an up‐to‐date account of the recent advancements in nanocellulose‐derived functional materials and their emerging applications in areas of chiral photonics, soft actuators, energy storage, and biomedical science is provided. The fundamental design and synthesis strategies for nanocellulose‐based functional materials are discussed. Their unique properties, underlying mechanisms, and potential applications are highlighted. Finally, this review provides a brief conclusion and elucidates both the challenges and opportunities of the intriguing nanocellulose‐based technologies rooted in materials and chemistry science. This review is expected to provide new insights for nanocellulose‐based chiral photonics, soft robotics, advanced energy, and novel biomedical technologies, and promote the rapid development of these highly interdisciplinary fields, including nanotechnology, nanoscience, biology, physics, synthetic chemistry, materials science, and device engineering.}, journal={ADVANCED FUNCTIONAL MATERIALS}, author={Lv, Pengfei and Lu, Xiaomin and Wang, Ling and Feng, Wei}, year={2021}, month={Aug} } @article{zang_zhou_dong_wang_mao_lu_xue_ma_2021, title={One-Pot Synthesis of Nano CuO-ZnO Modified Hydrochar Derived from Chitosan and Starch for the H2S Conversion}, volume={11}, ISSN={["2073-4344"]}, DOI={10.3390/catal11070767}, abstractNote={A novel kind of hydrochar adsorbent, modified by CuO-ZnO and derived from chitosan or starch, was synthesized for H2S adsorption. The prepared adsorbent was characterized by BET, XRD, EDX, SEM, and XPS. The results showed that the modified hydrochar contained many amino groups as functional groups, and the nanometer metal oxide particles had good dispersion on the surface of the hydrochar. The maximum sulfur capacity reached 28.06 mg/g-adsorbent under the optimized conditions. The amine group significantly reduced the activation energy between H2S and CuO-ZnO conducive to the rapid diffusion of H2S among the lattices. Simultaneously, cationic polyacrylamide as a steric stabilizer could change the formation process of CuO and ZnO nanoparticles, which made the particle size smaller, enabling them to react with H2S sufficiently easily. This modified hydrochar derived from both chitosan and starch could be a promising adsorbent for H2S removal.}, number={7}, journal={CATALYSTS}, author={Zang, Lihua and Zhou, Chengxuan and Dong, Liming and Wang, Leilei and Mao, Jiaming and Lu, Xiaomin and Xue, Rong and Ma, Yunqian}, year={2021}, month={Jul} } @article{ma_lu_wang_hubbe_liu_mu_wang_sun_rojas_2021, title={Recent developments in colorimetric and optical indicators stimulated by volatile base nitrogen to monitor seafood freshness}, volume={28}, ISSN={["2214-2894"]}, DOI={10.1016/j.fpsl.2021.100634}, abstractNote={Seafood spoilage could cause food waste and also serious foodborne disease because of the specific organisms and their metabolites. Therefore, it is important to monitor their freshness in the supply chain. In most cases, their spoilage has been determined by the content of volatile base nitrogen, adenosine triphosphate or the total viable count. However, these destructive detection methods are tedious and time consuming. Hence, it is highly desirable to develop easily operated and non-destructive sensing technologies for real-time detection. A lot of freshness indicators have emerged up to now. Colorimetric indicators are particularly beneficial to accompany use-by dates in food packaging as real-time indicators because they produce visible color changes to the naked eye, which can be easily understood by consumers and non-specialists. Numerous studies have considered the colorimetric indicators to monitor seafood freshness in recent years. This paper mainly focused on colorimetric indicators stimulated by volatile base nitrogen. The most traditional materials used in these indicators are also discussed. The challenges and opportunities in the systems are introduced in this context as well based on the published literature.}, journal={FOOD PACKAGING AND SHELF LIFE}, author={Ma, Qianyun and Lu, Xiaomin and Wang, Wenxiu and Hubbe, Martin A. and Liu, Yaqiong and Mu, Jianlou and Wang, Jie and Sun, Jianfeng and Rojas, Orlando J.}, year={2021}, month={Jun} } @article{liu_zhang_lu_wang_zhang_tian_wang_song_jin_xiao_2021, title={Binding affinity of family 4 carbohydrate binding module on cellulose films of nanocrystals and nanofibrils}, volume={251}, ISSN={["1879-1344"]}, DOI={10.1016/j.carbpol.2020.116725}, abstractNote={The binding affinity and thermodynamics of family 4 carbohydrate-binding module (CBM4), belonging to type B CBM, on model surfaces of cellulose nanocrystals (CNC) and nanofibrils (CNF) were investigated by quartz crystal microbalance with dissipation monitoring (QCM-D) technology in real-time at different temperatures. The thermodynamic parameters associated with the interaction, such as Gibbs free energy, enthalpy change, entropy change and heat capacity were obtained using the van't Hoff analysis via a nonlinear parameter estimation. The results demonstrated CBM4 binds preferentially to both CNF and CNC, whereas the driving forces behind them were very different. The former was related to the hydrogen bonds formed in the CBM4 clefts, resulting in a favorable enthalpy but compensated by unfavorable entropy change; on the contrary, the latter was mainly driven by favorable entropy but compensated by unfavorable enthalpic change due to water rearrangement.}, journal={CARBOHYDRATE POLYMERS}, author={Liu, Tian and Zhang, Yu and Lu, Xiaomin and Wang, Peipei and Zhang, Xinyu and Tian, Jing and Wang, Qingcheng and Song, Junlong and Jin, Yongcan and Xiao, Huining}, year={2021}, month={Jan} } @article{lu_sundberg_strand_hubbe_2020, title={Effects of metal ions and wood pitch on retention and physical properties of TMP}, volume={35}, ISSN={["2000-0669"]}, DOI={10.1515/npprj-2020-0036}, abstractNote={Abstract The influence of metal ions, Ca 2 + {\mathrm{Ca}^{2+}} and Mg 2 + {\mathrm{Mg}^{2+}} , on wood pitch retention at pH 8 was studied by investigating the pitch content of TMP-papers using both short- and long-column gas chromatography (GC). The effects of two different drying methods, air-drying and freeze-drying, on pitch retention were also compared in this work. The pitch emulsion was prepared with fatty acids, resin acids, and triglycerides at a certain ratio to simulate the pitch composition in closed water system in paper mill. At increasing pH, some of the resin and fatty acids will dissolve into the water phase as metal soaps. In this work, the retention of colloidal pitch in TMP-papers by metal ions at pH 8 was determined. The amount of 5 mM metal ions was found to retain more pitch. The tensile index decreased by the addition of metal ions, and the decrease became more pronounced as the increase of the metal ions concentration. Besides, the hydrophobicity of handsheets was found being changed only a little, which might because the morphology and pitch retained on the surface both affected the hydrophobicity.}, number={4}, journal={NORDIC PULP & PAPER RESEARCH JOURNAL}, author={Lu, Xiaomin and Sundberg, Anna and Strand, Anders and Hubbe, Martin A.}, year={2020}, month={Dec}, pages={649–659} } @article{wang_hu_lu_wang_zhang_tian_guo_song_jin_xiao_2021, title={Impact of degree of substitution of cationic xylan on strength of cellulose fiber networks along with medium conductivity}, volume={159}, ISSN={["1872-633X"]}, DOI={10.1016/j.indcrop.2020.113058}, abstractNote={Hemicelluloses have been considered as an efficient component to improve the bonding or strength of fiber networks. The degree of substitution (DS) of cationic hemicelluloses and the ionic strength of applied medium are therefore two most important and crucial factors influencing its performance in wet-end of papermaking. Therein, the impact of DS of cationic xylan (CX) derived from corncob on the strength of fiber networks was systematically explored in aqueous media with various ionic strengths. Initially, a series of CXs with DS ranging from 0.051 to 0.113 were synthesized via a microwave-assisted method. The resulting CXs were applied as wet-end additives in the media with conductivity of 500, 2500, and 5000 μs/cm, representing the low, moderate, and high level of electrolytes in closed white water circulation, respectively. Comparing to the control, all CXs improved the tensile and tear strength of paper significantly, while not in burst strength. The medium conductivity had an adverse impact on the performance of CXs, and the optimum DS of CXs was down shifted to about 0.05 ∼ 0.06. To mimic the adsorption of CXs on fiber surface, the adsorption behavior of CXs on negatively charged gold sensor was monitored by SPR in an attempt to reveal the mechanism. It was found that CXs with low DS had a larger adsorption capacity, thicker and softer adlayer, which are beneficial to fiber bonding and paper strength. This study is meaningful to the applications of xylan into value-added products and to the valorization of agricultural and forestry wastes.}, journal={INDUSTRIAL CROPS AND PRODUCTS}, author={Wang, Xiaoyan and Hu, Fanghui and Lu, Xiaomin and Wang, Qingcheng and Zhang, Xinyu and Tian, Jing and Guo, Jiaqi and Song, Junlong and Jin, Yongcan and Xiao, Huining}, year={2021}, month={Jan} } @article{lin_xing_jin_lu_huang_yong_2020, title={Insight into understanding the performance of deep eutectic solvent pretreatment on improving enzymatic digestibility of bamboo residues}, volume={306}, ISSN={["1873-2976"]}, DOI={10.1016/j.biortech.2020.123163}, abstractNote={Deep eutectic solvent (DES) is a promising pretreatment for improving enzymatic digestibility of lignocellulosic material by altering the physicochemical properties. However, few work has been done to quantitatively analysis the physicochemical properties changes of lignocellulosic material with enzymatic digestibility. In this work, DES pretreatment with different molar ratios of choline chloride/lactic acid was carried out on bamboo residues and respective enzymatic digestibility was investigated and linearly fitted with corresponding physicochemical features changes of the pretreated bamboo residues. Results showed that enzymatic digestibility of DES-pretreated bamboo residues was enhanced with the increasing molar ratio of choline chloride/lactic acid, which was due to DES pretreatment's ability to remove lignin and xylan, reduce the degree of polymerization of cellulose, enhance the crystallite size of cellulose, and improve cellulose accessibility. Several compelling linear correlations (R 2  = 0.6-0.9) were observable between enzymatic digestibility and these changes of physicochemical properties, demonstrating how DES pretreatment improve the enzymatic digestibility.}, journal={BIORESOURCE TECHNOLOGY}, author={Lin, Wenqian and Xing, Sheng and Jin, Yongcan and Lu, Xiaomin and Huang, Caoxing and Yong, Qiang}, year={2020}, month={Jun} } @article{feng_wang_lv_qu_lu_wei_wang_2020, title={Multifunctional Wearable Strain Sensor Made with an Elastic Interwoven Fabric for Patients with Motor Dysfunction}, volume={5}, ISSN={["2365-709X"]}, DOI={10.1002/admt.202000560}, abstractNote={AbstractAs the recovery of patients with motor dysfunction can be a time‐consuming process, flexible wearable electronics with a large workable strain range and high sensitivity for detecting various human motions may be useful for real‐time monitoring and evaluation of treatment progress. In this study, cotton/spandex core‐spun yarns are chosen as weft yarns and interwoven with acrylic plied yarn to prepare an elastic fabric, which is sequentially coated with carboxylic multi‐walled carbon nanotubes and silver nanoparticle‐based conductive layers to finally obtain a high‐performance strain sensor (resistance = 60 Ω). The strain sensor displays high sensitivity (gauge factor = 1799) and a large detectable strain range (tolerable strain up to 100%). After 1000 stretching–releasing tests, the sensor still shows favorable electromechanical stability. It is confirmed that large‐scale human joint motions and subtle signals can be detected and identified based on relative resistance variations. In addition, the sensor shows a satisfactory photothermal effect (temperature rises from 18.6 to 35.8 °C within 2 min under IR light illumination) and good antibacterial efficiency (99.74% against Escherichia coli and 97.67% against Staphylococcus aureus). This strain sensor has great potential for future application as an auxiliary tool for evaluating motor recovery in patients with motor dysfunction.}, number={11}, journal={ADVANCED MATERIALS TECHNOLOGIES}, author={Feng, Jingdong and Wang, Xinyi and Lv, Zihao and Qu, Jiangang and Lu, Xiaomin and Wei, Qufu and Wang, Qingqing}, year={2020}, month={Nov} } @article{shen_wang_yu_li_lu_kong_2021, title={On-site separation and identification of polycyclic aromatic hydrocarbons from edible oil by TLC-SERS on diatomite photonic biosilica plate}, volume={160}, ISSN={["1095-9149"]}, DOI={10.1016/j.microc.2020.105672}, abstractNote={The accumulated polycyclic aromatic hydrocarbons (PAHs) in edible oil can bring serious health concerns because of their carcinogenic features. PAHs could accumulate in edible oil from contaminated environment or food stuff. In this study, the combination uses of on-site thin layer chromatography and surface enhanced Raman scattering (SERS) spectroscopy has been successfully displayed to identify PAHs from edible oil samples. Diatomite which is a kind of porous biosilica was used to construct stationary phase on TLC plate, the photonic crystal feature of diatomite is beneficial for SERS enhancement. The highly-porous stationary phase composed of porous diatomite with void shell structure could promote mobile phase interaction with the stationary phase, which leading to improved mass transfer, uniformity and analyte resolution compare with the conventional silica gel plate. The edible oil (1 µL) was directly applied to the diatomite plate without pretreatment, and subjected to TLC separation. The polarity of target analytes was calculated for eluent optimization, on which four compounds of PAHs(benzo[a]pyrene, pyrene, anthracene and indeno[1,2,3-cd] pyrene) were successfully separated by using hexane/chloroform (15/1, v/v) as eluent, including compounds with similar polarity(benzo[a]pyrene 0.0477, indeno[1,2,3-cd] pyrene 0.6545, pyrene and anthracene are 0). 2 µL of Au colloid at 2.4 × 10−7 M were transferred onto the diatomite plate for the SERS measurement. The limit of detection was found to be nearly at 1 ppm. The obtained results can easily identify the four compounds of PAHs in edible oil by their own characteristic Raman peaks. This proposed method provides a simple, instant and effective strategy for on-site identification PAHs from food samples.}, journal={MICROCHEMICAL JOURNAL}, author={Shen, Zhengdong and Wang, Haiying and Yu, Qian and Li, Qiang and Lu, Xiaomin and Kong, Xianming}, year={2021}, month={Jan} } @article{sun_sun_xin_sun_lu_2020, title={Plasma-catalyzed Liquefaction of Wood-based Biomass}, volume={15}, ISSN={["1930-2126"]}, DOI={10.15376/biores.15.3.6095-6109}, abstractNote={Biomass resources in nature produce a large amount of waste resources (agricultural residues, wood waste, etc.) during agricultural and forestry production processes. Therefore, the effective utilization of these solid biomass waste resources has attracted widespread interest. In this paper, a pulsed discharge plasma technology was used to perform catalytic liquefaction experiments on solid biomass sawdust at room temperature and atmospheric pressure, and the reaction parameters such as the solid:liquid ratio, liquefaction solvent ratio, and catalyst ratio were optimized. The results showed that the plasma technology achieved a higher liquefaction yield; the optimized reaction parameters were: a solid:liquid ratio of 1:23.4, a liquefaction solvent polyethylene glycol (PEG) / glycerol (GL) ratio of 25:15 (V:V), and an acid volume fraction of 0.188%. In addition, the characteristics of the products of the liquefaction reaction were analyzed and discussed. The liquid products were mainly composed of small molecules. The experiment established that the liquefaction of solid sawdust by high-voltage pulsed discharge plasma can be an effective technical method.}, number={3}, journal={BIORESOURCES}, author={Sun, Xiaohang and Sun, Zijun and Xin, Yanbin and Sun, Bing and Lu, Xiaomin}, year={2020}, month={Aug}, pages={6095–6109} } @article{zhou_lv_lu_hou_zhao_huang_xia_wei_2019, title={Fibrous Network of C@MoS2 Nanocapsule-Decorated Cotton Linters Interconnected by Bacterial Cellulose for Lithium- and Sodium-Ion Batteries}, volume={12}, ISSN={["1864-564X"]}, DOI={10.1002/cssc.201902445}, abstractNote={AbstractTo protect the structure of MoS2 from collapse, a strong skeleton is expected to help maintain the integrity. In this study, cotton linters burdened with hollow C@MoS2 nanocapsules are added into nutrient medium for the growth of a bacterial cellulose membrane. Benefitting from good conductivity and structural integrity, the resultant fibrous membrane anode gives reversible capacities of 559 and 155 mAh g−1 for Li‐ion batteries and Na‐ion batteries after 100 cycles, respectively. The structural transformation and component evolution in lithiation–delithiation and sodiation–desodiation was elucidated by in situ Raman spectroscopy. After sodiation, the Na2S did not transform back into MoS2 but was more likely converted into elemental sulfur during the conversion reaction. Layered semiconducting transition metal chalcogenides, such as molybdenum disulfide (MoS2), feature open 2 D ion‐transport channels amenable to receive various guest ions with high theoretical capacities.[2] One serious challenge curtailing the applicability of such materials is their volume changes during discharge–charge processes.[3, 4] However, particular morphologies of MoS2 are proposed to improve the specific capacity.[5,6,7] Many works have focused on core–shell and hollow MoS2 micro‐ and nanostructures, and the results validate the advantages of shortening the lithium‐ion diffusion distance and enhancing specific capacity.[8,9] Unfortunately, the issue of inferior capacity stability is not resolved, because the structure is not effectively protected and is prone to collapse.}, number={23}, journal={CHEMSUSCHEM}, author={Zhou, Huimin and Lv, Pengfei and Lu, Xiaomin and Hou, Xuebin and Zhao, Min and Huang, Jieyu and Xia, Xin and Wei, Qufu}, year={2019}, month={Dec}, pages={5075–5080} } @article{ye_li_lu_zhang_rojas_2016, title={Antioxidant and Thermal Stabilization of Polypropylene by Addition of Butylated Lignin at Low Loadings}, volume={4}, ISSN={["2168-0485"]}, DOI={10.1021/acssuschemeng.6b01241}, abstractNote={The effect of phenolic hydroxyl group content and molecular mass of a technical lignin on the thermo-oxidation resistance and compatibility with polypropylene (PP) was studied by a combination of approaches, including 31P NMR, gel permeation chromatography (GPC), thermogravimetry (TG), dynamic scanning calorimetry (DSC), accelerated aging tests, scanning electron microscopy (SEM), and dynamic mechanical analysis (DMA). The compatibility of lignin with PP upon melt compounding in a screw system was improved after modification of lignin with n-butyric anhydride. The thermal oxidation stability of films of PP blends, as measured in an oxygen atmosphere, was increased by low addition levels of the butylated lignins while maintaining, and in some cases improving, their thermo-mechanical performance. Notably, the oxidation induction time (OIT) and induction aging time of PP blended with butylated lignins (<5% loadings) reached maximum values of 16 min and 576 h, respectively, indicating an effect equivalent to ...}, number={10}, journal={ACS SUSTAINABLE CHEMISTRY & ENGINEERING}, author={Ye, Dezhan and Li, Shuai and Lu, Xiaomin and Zhang, Xi and Rojas, Orlando J.}, year={2016}, month={Oct}, pages={5248–5257} } @article{ferrer_hoeger_lu_rojas_2016, title={Reinforcement of polypropylene with lignocellulose nanofibrils and compatibilization with biobased polymers}, volume={133}, ISSN={["1097-4628"]}, DOI={10.1002/app.43854}, abstractNote={ABSTRACTFreeze‐dried and milled lignocellulose nanofibrils (LCNF) were used to reinforce polypropylene (PP) nanocomposites. The LCNF, containing up to 9% lignin, was obtained from residual Empty Palm Fruit Bunch (EPFB) fibers. Soy protein isolate (SPI) and hydroxypropyl cellulose (HPC) were tested as coupling agents as well as maleic anhydride grafted polypropylene (MAPP), which was used as a reference. A good level of dispersion of LCNF in the PP matrix while mechanical testing and thermal analyses indicated an improvement of the thermo‐mechanical behavior of the nanocomposites was revealed upon loading of the lignin‐containing nanofibrils. The tensile modulus of PP was increased by 15% upon the addition of 1% LCNF with SPI as a compatibilizer. Likewise, the thermal stability of the composites was most markedly enhanced. Overall, LCNF and SPI, two important bioresources, are introduced here for the development of novel and cost‐effective PP‐based composites. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43854.}, number={34}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, author={Ferrer, Ana and Hoeger, Ingrid C. and Lu, Xiaomin and Rojas, Orlando J.}, year={2016}, month={Sep} }