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Journal articles on the topic 'Anti-Solvent Method'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

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1

Jin, Gang, Hai V. Ngo, Jing-Hao Cui, Jie Wang, Chulhun Park, and Beom-Jin Lee. "Role of Surfactant Micellization for Enhanced Dissolution of Poorly Water-Soluble Cilostazol Using Poloxamer 407-Based Solid Dispersion via the Anti-Solvent Method." Pharmaceutics 13, no. 5 (May 5, 2021): 662. http://dx.doi.org/10.3390/pharmaceutics13050662.

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This study aimed to investigate the role of micellization of sodium lauryl sulfate (SLS) in poloxamer 407 (POX)-based solid dispersions (POX-based SDs) using the anti-solvent method in enhancing the dissolution rate of practically water-insoluble cilostazol (CLT). Herein, SLS was incorporated into CLT-loaded SDs, at a weight ratio of 50:50:10 of CLT, POX, and SLS by three different methods: anti-solvent, fusion (60 °C), and solvent (ethanol) evaporation. The SDs containing micellar SLS in the anti-solvent method were superior in the transformation of the crystalline form of the drug into a partial amorphous state. It was notable that there was an existence of a hydrophobic interaction between the surfactant and the hydrophobic regions of polymer chain via non-covalent bonding and the adsorption of micellar SLS to the POX-based SDs matrix. Moreover, SLS micellization via the anti-solvent method was effectively interleaved in SDs and adhered by the dissolved CLT, which precluded drug particles from aggregation and recrystallization, resulting in improved SD wettability (lower contact angle) and reduced particle size and dissolution rate. In contrast, SDs without micellar SLS prepared by the solvent method exerted drug recrystallization and an increase of particle size, resulting in decreased dissolution. Incorporation of surfactant below or above critical micellar concentration (CMC) in SDs using the anti-solvent method should be considered in advance. Dissolution results showed that the pre-added incorporation of micellar SLS into POX-based SDs using the anti-solvent method could provide a way of a solubilization mechanism to enhance the dissolution rate of poorly water-soluble drugs.

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2

An, Ji-Hun, Alice Nguvoko Kiyonga, Eun Hee Lee, and Kiwon Jung. "Simple and Efficient Spherical Crystallization of Clopidogrel Bisulfate Form-I via Anti-Solvent Crystallization Method." Crystals 9, no. 1 (January 17, 2019): 53. http://dx.doi.org/10.3390/cryst9010053.

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Clopidogrel bisulfate (CLP) form-I crystals are irregular, rectangular-shaped crystals. Because of their poor compressibility, flowability and their strong surface tension, manufacturers apply spherical crystallization methods to produce CLP form-I spherical agglomerates with a uniform particle size distribution. Consequently, manufacturers primarily synthesize CLP form-I crystal salts utilizing very complex methods, which produces form-I spherical agglomerates by means of spherical crystallization. In this study, spherical crystals of CLP Form-I were directly prepared from CLP Form-II, the most stable polymorph at room temperature, by using ethanol as solvent and a mixture of isopropyl alcohol (IPA)/n-Hexane (Hex) as an anti-solvent. To provide systematic inputs for the development of spherical agglomerates of optimal morphology, size, particle size distribution (PSD), and polymorphic form, processing parameters such as anti-solvent type, a mixture of IPA/Hex, pure Hex, or pure acetone; stirring speeds of 500, 600, 700, or 800 rpm; and temperatures ranging from 25 to 40 °C were explored. The effects of these parameters on spherical crystallization and polymorphic form were studied in terms of supersaturation, a driving force for polymorphic transformation, and the crystallization solution. Notably, our method does not require a large volume of anti-solvent which is the main complication of conventional anti-solvent crystallization methods.

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3

Reza Pouretedal, Hamid, Sajjad Damiri, and Javad Moslemi. "Re‐Crystallization of HNS‐IV by Optimization of Solvent/Anti‐Solvent Method through Taguchi Analysis Design." Propellants, Explosives, Pyrotechnics 45, no. 7 (April 3, 2020): 1111–20. http://dx.doi.org/10.1002/prep.201900370.

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4

Wang, Jiayuan, Lingyu Zhu, and Richard Lakerveld. "A Hybrid Framework for Simultaneous Process and Solvent Optimization of Continuous Anti-Solvent Crystallization with Distillation for Solvent Recycling." Processes 8, no. 1 (January 2, 2020): 63. http://dx.doi.org/10.3390/pr8010063.

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Anti-solvent crystallization is frequently applied in pharmaceutical processes for the separation and purification of intermediate compounds and active ingredients. The selection of optimal solvent types is important to improve the economic performance and sustainability of the process, but is challenged by the discrete nature and large number of possible solvent combinations and the inherent relations between solvent selection and optimal process design. A computational framework is presented for the simultaneous solvent selection and optimization for a continuous process involving crystallization and distillation for recycling of the anti-solvent. The method is based on the perturbed-chain statistical associated fluid theory (PC-SAFT) equation of state to predict relevant thermodynamic properties of mixtures within the process. Alternative process configurations were represented by a superstructure. Due to the high nonlinearity of the thermodynamic models and rigorous models for distillation, the resulting mixed-integer nonlinear programming (MINLP) problem is difficult to solve by state-of-the-art solvers. Therefore, a continuous mapping method was adopted to relax the integer variables related to solvent selection, which makes the scale of the problem formulation independent of the number of solvents under consideration. Furthermore, a genetic algorithm was used to optimize the integer variables related to the superstructure. The hybrid stochastic and deterministic optimization framework converts the original MINLP problem into a nonlinear programming (NLP) problem, which is computationally more tractable. The successful application of the proposed method was demonstrated by a case study on the continuous anti-solvent crystallization of paracetamol.

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5

Shashidhar, G. M., G. V. Pravin, and B. Manohar. "Nano-engineering of liposomes using a supercritical CO2 mediated gas anti-solvent method." RSC Advances 6, no. 62 (2016): 57739–50. http://dx.doi.org/10.1039/c6ra09530e.

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6

Kakran, Mitali, Nanda Gopal Sahoo, Lin Li, and Zaher Judeh. "Fabrication of quercetin nanoparticles by anti-solvent precipitation method for enhanced dissolution." Powder Technology 223 (June 2012): 59–64. http://dx.doi.org/10.1016/j.powtec.2011.08.021.

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7

Hao, Jiabin, Huiying Hao, Feiyu Cheng, Jianfeng Li, Haiyu Zhang, Jingjing Dong, Jie Xing, Hao Liu, and Jian Wu. "Improved performance of mesostructured perovskite solar cells via an anti-solvent method." Journal of Crystal Growth 491 (June 2018): 66–72. http://dx.doi.org/10.1016/j.jcrysgro.2018.03.030.

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8

Yang, Wang, Zhang, Chang, and Zhang. "A Facile Way to Improve the Performance of Perovskite Solar Cells by Toluene and Diethyl Ether Mixed Anti-Solvent Engineering." Coatings 9, no. 11 (November 18, 2019): 766. http://dx.doi.org/10.3390/coatings9110766.

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Solvent engineering is one of the most widely applied preparation methods for the high- quality perovskite films. In this method, the choice of anti-solvent plays a very important role to improve the perovskite crystal quality. Here, we report a facile way to regulate the crystal quality of perovskite film by adjusting the ratio of toluene and diethyl ether in the mixed anti-solvent. Through the combination of characterization and measurements including scanning electron microscopy, the atomic force microscopy, X-ray diffraction, and the steady-state photoluminescence spectra, it reveals that the quality of perovskite films is obviously improved when the volume ratio of toluene to diethyl ether in the mixed anti-solvent is 1:1. The optimal device obtains power conversion efficiency of 16.96% with a short-circuit current density of 20.60 mA/cm2, an open-circuit voltage of 1.03 V, and a fill factor of 79.96%. At the same time, the device shows negligible current–voltage hysteresis and steady power output. Moreover, the stability of PSCs is significantly enhanced due to the perovskite film quality improvement by adopting 50% toluene mixed anti-solvent.

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9

Utami, Larasati Arum, and Dwi Hilda Putri. "The Effect of Ethanol Solvent Concentration on Antimicrobial Activities The Extract of Andalas Endophytic Bacteria (Morus Macroura Miq.) Fermentation Product." Eksakta : Berkala Ilmiah Bidang MIPA 21, no. 1 (April 30, 2020): 1–6. http://dx.doi.org/10.24036/eksakta/vol21-iss1/210.

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Anti-Biotic resistance is a health problem globally. It is able to overcome with a new anti-microbial compound that can be produced from Andalas endophytic bacteria. This compound can be obtained through the fermentation process. In order to separate this active-compound, it is needed to use the extraction method. In this method, the solvent is functioned as the extractor. One of the solvent which is commonly used is ethanol. This research is aimed to know the effect of ethanol concentration toward antibacterial activity from extracted bacterial fermentation products of Andalas endophytic bacteria isolate JDT 1B. The fermented products are extracted by using the maceration method. The concentrations are 100%, 80%, 70%. A test of anti-microbial activity is used disk diffusion method. The extracted concentrations tested for each solvent are 50%, 25%, 12,5%, and 6.25%. Anti-bacterial activity is analyzed by using factorial design. The factorial result showed there is no significant contrast between ethanol concentration mentioned toward anti-bacterial activity from extracted bacterial fermentation products of Andalas endophytic bacteria Isolate JDT 1B. The concentration of extracted fermentation product using 70% ethanol has the same inhibition zone as control is 6,25%.

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10

ZHAO, Hong, Jiexin WANG, Haixia ZHANG, Zhigang SHEN, Jimmy Yun, and Jianfeng CHEN. "Facile Preparation of Danazol Nanoparticles by High-Gravity Anti-solvent Precipitation (HGAP) Method." Chinese Journal of Chemical Engineering 17, no. 2 (April 2009): 318–23. http://dx.doi.org/10.1016/s1004-9541(08)60210-4.

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11

Bandara, R. M. I., K. D. G. I. Jayawardena, S. O. Adeyemo, S. J. Hinder, J. A. Smith, H. M. Thirimanne, N. C. Wong, et al. "Tin(iv) dopant removal through anti-solvent engineering enabling tin based perovskite solar cells with high charge carrier mobilities." Journal of Materials Chemistry C 7, no. 27 (2019): 8389–97. http://dx.doi.org/10.1039/c9tc02003a.

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12

Adams, Geoffrey Ryan, Vincent Obiozo Eze, Lucas Braga Carani, Aaron Pino, Claire Jolowsky, and Okenwa I. Okoli. "Synergistic effect of the anti-solvent bath method and improved annealing conditions for high-quality triple cation perovskite thin films." RSC Advances 10, no. 31 (2020): 18139–46. http://dx.doi.org/10.1039/d0ra02719g.

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13

Kulkarni, Samir A., and Allan S. Myerson. "Reversible control of solubility using functionalized nanoparticles." Chemical Communications 53, no. 8 (2017): 1429–32. http://dx.doi.org/10.1039/c6cc09390f.

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The paper provides a novel method for the reversible control of solubility by use of functionalized nanoparticles. The nanoparticles are functionalized with functional groups that can act as a co-solvent or anti-solvent and thus can induce either dissolution or crystallization.

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14

Joo, Sung Hwan, Il Tae Kim, and Hyung Wook Choi. "Characteristics of Perovskite Solar Cells with Methylammonium Iodide-Added Anti-Solvent." Journal of Nanoscience and Nanotechnology 21, no. 8 (August 1, 2021): 4367–71. http://dx.doi.org/10.1166/jnn.2021.19408.

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The perovskite film—manufactured via a one-step method—was superficially improved through an anti-solvent process to increase solar cell efficiency. Although perovskite synthesis proceeds rapidly, a significant amount of lead iodide residue remains. Well-placed lead iodide in perovskite grains prevents electron–hole recombination; however, when irregularly placed, it interferes with the movement of electron and holes. In this study, we focused on improving the crystallinity of the perovskite layer, as well as reducing lead iodide residues by adding a methylammonium halide material to the anti-solvent. Methylammonium iodide in chlorobenzene used as an anti-solvent reduces lead iodide residues and improves the crystallinity of formamidinium lead iodide perovskite. The improved crystallinity of the perovskite layer increased the absorbance and, with reduced lead iodide residues, increased the efficiency of the perovskite solar cell by 1.914%.

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15

Imperiale, Julieta C., Gabriela Bevilacqua, Paulo de Tarso Vieira e. Rosa, and Alejandro Sosnik. "Production of pure indinavir free base nanoparticles by a supercritical anti-solvent (SAS) method." Drug Development and Industrial Pharmacy 40, no. 12 (September 19, 2013): 1607–15. http://dx.doi.org/10.3109/03639045.2013.838581.

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16

Zabihi, Fatemeh, Na Xin, Sining Li, Jingfu Jia, Tao Cheng, and Yaping Zhao. "Polymeric coating of fluidizing nano-curcumin via anti-solvent supercritical method for sustained release." Journal of Supercritical Fluids 89 (May 2014): 99–105. http://dx.doi.org/10.1016/j.supflu.2014.02.021.

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17

Sun, Xiaofu, Zhimin Xue, and Tiancheng Mu. "Precipitation of chitosan from ionic liquid solution by the compressed CO2 anti-solvent method." Green Chem. 16, no. 4 (2014): 2102–6. http://dx.doi.org/10.1039/c3gc42166j.

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18

Ajayan, Anju, Vineeth Madhavan, Sumitha Chandran, and Poovathinthodiyil Raveendran. "A simple anti-solvent method for the controlled deposition of metal and alloy nanoparticles." New Journal of Chemistry 42, no. 14 (2018): 11979–83. http://dx.doi.org/10.1039/c8nj01285g.

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19

Chavoshpour-Natanzi, Zahra, and Mehdi Sahihi. "Encapsulation of quercetin-loaded β-lactoglobulin for drug delivery using modified anti-solvent method." Food Hydrocolloids 96 (November 2019): 493–502. http://dx.doi.org/10.1016/j.foodhyd.2019.05.051.

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20

Sun, Liangjie, Yang Song, Binghui Li, Guoqiang Guan, and Yanbin Jiang. "A modified method for modelling, optimization and control of an anti-solvent crystallization process." Chemical Engineering Science 211 (January 2020): 115253. http://dx.doi.org/10.1016/j.ces.2019.115253.

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21

Liu, Zhen, Olivia L. Lanier, and Anuj Chauhan. "Poly (Vinyl Alcohol) Assisted Synthesis and Anti-Solvent Precipitation of Gold Nanoparticles." Nanomaterials 10, no. 12 (November 27, 2020): 2359. http://dx.doi.org/10.3390/nano10122359.

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Gold nanoparticles (GNPs) are commonly synthesized using the Turkevich method, but there are limitations on the maximum concentration of gold nanoparticles that can be achieved using this method (often < 1 mM (=0.34 mg/mL) gold precursor loading). Here, we report an inverse Turkevich method which significantly increases the concentration of gold nanoparticles (up to 5-fold) in the aqueous phase by introducing poly (vinyl alcohol) (PVA) to the synthesis system for stabilization. The aim of this study is to understand the effect of PVA and other synthesis parameters, such as trisodium citrate and tetrachloroauric acid concentration, with the goal of maximizing concentration while maintaining gold nanoparticle morphology, stability, and narrow size distribution. The size distribution of GNPs is investigated for a range of parameters by dynamic light scattering and electron microscopy, and ultraviolet-visible (UV–vis) spectroscopy is also utilized to explore the localized surface plasmon resonance (LSPR). Further, the interaction between GNPs and PVA is investigated by Fourier-transform infrared spectroscopy. In addition to increasing the gold loading by varying synthesis parameters, we also develop a novel anti-solvent precipitation method for the PVA-coated GNPs, which enables continuous condensation and purification of GNPs by forming a gold/PVA nanocomposite.

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22

Montolalu, Vimothy Daniel, Evita H. Legowo, and Hery Sutanto,. "Optimization of Pre-treatment Method in Shikimic Acid Extraction from Palm Oil Mill Effluent (POME)." ICONIET PROCEEDING 2, no. 2 (February 13, 2019): 128–33. http://dx.doi.org/10.33555/iconiet.v2i2.23.

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The global pandemic spread of influenza like bird flu and swine flu are forcing abigger production of anti-influenza drug called Oseltamivir phosphate. The drug is made by synthesizing a compound named shikimic acid. Although the demand of the drug increases, the source of shikimic acid material is limited. Meanwhile, palm oil mill effluent (POME), a waste generated from palm oil industry is provenly rich in phytonutrients. This research aims to improve the shikimic extraction process from palm oil mill effluent by pre-treating the POME. Three pre-treatments were done on the POME which are solvent-extraction method, sedimentation method, and combination of solvent-extraction and sedimentation method. Sedimentation used the centrifugal principle and solvent-extraction used n-hexane as the solvent. Extraction of shikimic acid from pre-treated POME was done using ethyl acetate as the solvent. Detection of shikimic acid was done using TLC method and FT-IR instrument, while HPLC was used to measure the amount of shikimic acid extracted. Yield of shikimic acid obtained after solvent-extraction pre-treatment (0.0795%) was better than the sedimentation pre-treatment (0.015%). Also, the solvent-extraction pre-treatment was more efficient (87.51%) than sedimentation pre-treatment (68.15%) in removing oil and grease. However, the best result was produced from the combination of both pre-treatments.

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23

Hudaya, Isna, Taufiqurrahman Nasihun, and Titiek Sumarawati. "Effect of White Turmeric Extract (Curcuma zedoaria) Using Zam-zam Solvent Compare with Ethanol Solvent Against Breast Cancer Cell T47D." Sains Medika 6, no. 2 (January 4, 2016): 52. http://dx.doi.org/10.26532/sainsmed.v6i2.601.

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Introduction: Curcuma zedoaria is one of the herbal plants potentially protects and cures many diseases, particularly as anti-cancer and anti-tumor. Anti-cancer active compounds of it are flavonoid, phenolic, and saponin. Objectives: This study aimed to explore the cytotoxicity of Curcuma zedoria extract (CZE). Methods: Experimental Quasi with post test non equivalent control group design on T47D cell line at Biology laboratory, Faculty of Medicine, Sultan Agung Islamic University, Semarang. The research was consisted of 2 groups, namely: intervention group with CZE zam-zam solvent and intervention group with CZE ethanol solvent given 10 different dosages each for 1.000 μg/mL; 500 μg/mL; 250 μg/mL; 125 μg/mL; 62.5 μg/mL; 31.25 μg/mL; 15.62 μg/mL; 7.81 μg/mL; 3.90 μg/mL; 1.95 μg/mL. Cytotoxicity test of IC50 using direct counting method and analyzed by probit analysis. Results: IC50 value of CZE in zam-zam and ethanol solvent were 28.24 μg/ml and 13.71 µg/ml respectively at the same 24 hours incubation period. Chi-square test revealed p value was 0.000 (α = 0.05), meaning that there was significant relationship. Conclusion: CZE activity using ethanol is highly active while CZE using zam-zam water is moderate and both of them have the toxicity on breast cancer cell. As the result, apoptosis process may occur.

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24

Aliaño-González, María José, José Antonio Jarillo, Ceferino Carrera, Marta Ferreiro-González, José Ángel Álvarez, Miguel Palma, Jesús Ayuso, Gerardo F. Barbero, and Estrella Espada-Bellido. "Optimization of a Novel Method Based on Ultrasound-Assisted Extraction for the Quantification of Anthocyanins and Total Phenolic Compounds in Blueberry Samples (Vaccinium corymbosum L.)." Foods 9, no. 12 (November 28, 2020): 1763. http://dx.doi.org/10.3390/foods9121763.

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In recent years, consumers’ preference for fruits such as blueberry has increased noticeably. This fact is probably related to their bioactive components such as anthocyanins, phenolic compounds, vitamins, minerals, and tannins that have been found in blueberries by the latest research studies. Both total anthocyanins (TA) and total phenolic compounds (TPC) are known for their multiple beneficial effects on our health, due to their anti-inflammatory, anti-oxidant, and anti-cancer properties. This is the reason why the development of new methodologies for the quality control analysis of raw materials or derived products from blueberry has a great relevance. Two ultrasound-assisted extraction methods (UAE) have been optimized for the quantification of TA and TPC in blueberry samples. The six variables to be optimized were: solvent composition, temperature, amplitude, cycle, extraction solvent pH, and sample/solvent ratio using response surface methodology. The optimized methods have proven to be suitable for the extraction of the TPC and TA with good precision (repeatability and intermediate precision) (coefficient of variation (CV) < 5%) and potentially for application in commercial samples. This fact, together with the multiple advantages of UAE, makes these methods a good alternative to be used in quality control analysis by both industries and laboratories.

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25

Mokkapati, V. R. S. S., Derya Yuksel Koseoglu-Imer, Nurmiray Yilmaz-Deveci, Ivan Mijakovic, and Ismail Koyuncu. "Membrane properties and anti-bacterial/anti-biofouling activity of polysulfone–graphene oxide composite membranes phase inversed in graphene oxide non-solvent." RSC Advances 7, no. 8 (2017): 4378–86. http://dx.doi.org/10.1039/c6ra25015g.

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26

Chun, Nan-Hee, Min-Jeong Lee, Geon-Hyung Song, Kwan-Young Chang, Chang-Sam Kim, and Guang J. Choi. "Combined anti-solvent and cooling method of manufacturing indomethacin–saccharin (IMC–SAC) co-crystal powders." Journal of Crystal Growth 408 (December 2014): 112–18. http://dx.doi.org/10.1016/j.jcrysgro.2014.07.057.

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27

Nishimaru, Momoko, Shoji Kudo, and Hiroshi Takiyama. "Cocrystal production method reducing deposition risk of undesired single component crystals in anti-solvent cocrystallization." Journal of Industrial and Engineering Chemistry 36 (April 2016): 40–43. http://dx.doi.org/10.1016/j.jiec.2016.01.027.

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28

Chen, Chun, and Xiong Fu. "Spheroidization on Fructus Mori polysaccharides to enhance bioavailability and bioactivity by anti-solvent precipitation method." Food Chemistry 300 (December 2019): 125245. http://dx.doi.org/10.1016/j.foodchem.2019.125245.

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29

Guo, Yaxiong, Junjie Ma, Hongwei Lei, Fang Yao, Borui Li, Liangbin Xiong, and Guojia Fang. "Enhanced performance of perovskite solar cells via anti-solvent nonfullerene Lewis base IT-4F induced trap-passivation." Journal of Materials Chemistry A 6, no. 14 (2018): 5919–25. http://dx.doi.org/10.1039/c8ta00583d.

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30

Xu, Ligang, Chi Zhang, Xiangyun Feng, Wenxuan Lv, ZuQiang Huang, Wenzhen Lv, Chao Zheng, Guichuan Xing, Wei Huang, and Runfeng Chen. "Vapor incubation of FASnI3 films for efficient and stable lead-free inverted perovskite solar cells." Journal of Materials Chemistry A 9, no. 31 (2021): 16943–51. http://dx.doi.org/10.1039/d1ta04722a.

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31

Sonar, Pankaj Kumar, Ranjit Singh, Shagufta Khan, and Shailendra K. Saraf. "Isolation, Characterization and Activity of the Flowers ofRhododendron arboreum(Ericaceae)." E-Journal of Chemistry 9, no. 2 (2012): 631–36. http://dx.doi.org/10.1155/2012/872147.

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The flowers ofRhododendron arboreumhave been reported to possess certain polyphenolic compounds. Thus, this study was aimed at the anti-microbial and phytochemical screening of the flowers. Important bioactive agents like steroids, saponins and flavonoids were detected in the flowers. Quercetin (a flavonoid) was isolated from the diethyl ether fraction of alcoholic extract by solvent-solvent extraction method. Isolated quercetin was identified and characterized by chemical tests, M.P., TLC, paper chromatography (with authentic marker) and spectroscopic methods like UV-Visible, FT-IR,1HNMR,13CNMR and Mass spectroscopy. The anti-microbial activity of the alcoholic and aqueous extract and isolated quercetin were investigated against five bacterial and two fungal strains by agar well-diffusion method. The activity was found to be concentration dependent. Ethanolic extract was found to be more active in comparison to the aqueous extract. Hence, isolation was done with ethanolic extract. The lowest effective concentration of quercetin was found to be 12.5 mg/ml againstS. aureusandP. aeruginosa. Both extracts and isolated quercetin were found ineffective against fungal strains. Quercetin may be one of the components responsible for the observed anti-microbial activity of the plant.

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32

Liang, Lei, Zhizai Li, Faguang Zhou, Qian Wang, Hong Zhang, Zhuo Xu, Liming Ding, Shengzhong (Frank) Liu, and Zhiwen Jin. "The humidity-insensitive fabrication of efficient CsPbI3 solar cells in ambient air." Journal of Materials Chemistry A 7, no. 47 (2019): 26776–84. http://dx.doi.org/10.1039/c9ta10597b.

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33

Ye, Jiajiu, Xuhui Zhang, Liangzheng Zhu, Haiying Zheng, Guozhen Liu, Hongxia Wang, Tasawar Hayat, Xu Pan, and Songyuan Dai. "Enhanced morphology and stability of high-performance perovskite solar cells with ultra-smooth surface and high fill factor via crystal growth engineering." Sustainable Energy & Fuels 1, no. 4 (2017): 907–14. http://dx.doi.org/10.1039/c7se00036g.

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34

Shashidhar, G. M., and B. Manohar. "Nanocharacterization of liposomes for the encapsulation of water soluble compounds from Cordyceps sinensis CS1197 by a supercritical gas anti-solvent technique." RSC Advances 8, no. 60 (2018): 34634–49. http://dx.doi.org/10.1039/c8ra07601d.

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Nano-liposomes were designed for the sustained release of water soluble compounds from C. sinensis CS1197 using a supercritical gas anti-solvent (SC-GAS) method at various pressures, temperatures and Tween 80 concentrations.

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35

Chen, Ransheng, Yulin Feng, Chunyang Zhang, Minhuan Wang, Liu Jing, Congcong Ma, Jiming Bian, and Yantao Shi. "Carbon-based HTL-free modular perovskite solar cells with improved contact at perovskite/carbon interfaces." Journal of Materials Chemistry C 8, no. 27 (2020): 9262–70. http://dx.doi.org/10.1039/d0tc02226h.

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C-based HTL-free PSCs were fabricated where the perovskite layers were deposited using a modified anti-solvent dripping method. Due to the improved interface quality, the relative high performance PSCs were achieved.

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36

Syaikhul Aziz, Elfahmi, Andreanus Andaja Soemardji, and Sukrasno. "Anti-hypercholesterolemic agent from Indonesian rice bran." International Journal of Research in Pharmaceutical Sciences 10, no. 4 (October 16, 2019): 2733–38. http://dx.doi.org/10.26452/ijrps.v10i4.1538.

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This research was conducted to determine the total oryzanol content of various extracts and bioassay-guided isolation of active anti-hypercholesterolemic agent from Indonesian rice bran. Hot solvent extraction was done by reflux method using single and binary solvents, namely hexane, chloroform, ethyl acetate, dichloromethane, isopropanol, acetone, hexane-ethyl acetate (1:1, v/v), hexane-isopropanol (1:1, v/v), and chloroform-ethyl acetate (1:1, v/v). TLC densitometric was used to quantitatively analyze the total oryzanol content in various extracts. The hexane extract was selected for fractionation and evaluated for their anti-hypercholesterolemic activity. The structure of an isolated compound was determined on the basis of NMR and Mass spectroscopy. The total oryzanol content was obtained using various solvents ranging from 27.92 to 43.59 mg/100g rice bran, in which hexane extract showed the highest amount (43.59 ± 3.36 mg/100g rice bran). β-sitosterol has been isolated from rice bran hexane extract, which shows a significant decrease in serum total cholesterol level. In summary, hexane is the best solvent to extract oryzanol compound using reflux method, and β-sitosterol was suspected to be responsible for anti-hypercholesterolemic activity in addition to existing compound such as oryzanol that contained in the rice bran.

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37

McLennan, Alec G., Alexey Y. Ganin, Yasuhiro Takabayashi, Ross H. Colman, Ruth H. Zadik, Matthew J. Rosseinsky, and Kosmas Prassides. "Synthesis of face-centred cubic Cs3C60 in THF." Faraday Discuss. 173 (2014): 95–103. http://dx.doi.org/10.1039/c4fd00085d.

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A solution chemistry synthetic route yields Cs₃C₆₀ with a face-centred cubic structure. The described method uses well-established Schlenk techniques and THF as a solvent. The controlled addition of an organo-metallic salt reducing agent prevents the formation of C₆₀⁴⁻ salts. The final product can be precipitated from the solution using hexane as an anti-solvent.

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38

Babu, Merin, Uma K.H, Sherin Joseph, Amoolya Sree, Sabin Scariya, Shibina K.A, and Jahanara Hameed. "In-Vitro Evaluation of Anti-Urolithiatic and Larvicidal Activity of Alternanthera sessilis." Biomedical and Pharmacology Journal 14, no. 02 (June 30, 2021): 671–80. http://dx.doi.org/10.13005/bpj/2169.

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Objective: Evaluation of Anti-urolithiatic and Larvicidal activity of Alternanthera sessilis. Method: The whole plant of Alternanthera sessilis were extracted using ethanol as solvent. Then it was evaluated for its phytochemicals and later on in vitro anti-urolithiatic study was conducted on the plant using the methods titrimetry, simultaneous flow static model, turbidimetry and gravimetric. The plant showing larvicidal effect was determined by larvicidal assay method. Result: The ethanolic extract of the plant showed the presence of various phytochemicals like phenols, flavonoids, tannins, sterols, saponins. The anti urolithiatic activity conformed that the plant can effectively mineralise calcium oxalate in a dose dependent manner when compared to control and standard. The plant also possesses larvicidal activity and the percentage mortality exhibited a dose dependent manner. Conclusion: The ethanolic extract of the plant possessed anti- urolithiatic as well as larvicidal activity.

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Wang, Ying, Li-Hui Zhu, Ai-Zheng Chen, Qiao Xu, Yu-Juan Hong, and Shi-Bin Wang. "One-Step Method to Prepare PLLA Porous Microspheres in a High-Voltage Electrostatic Anti-Solvent Process." Materials 9, no. 5 (May 13, 2016): 368. http://dx.doi.org/10.3390/ma9050368.

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40

Mubeen, Sidra, Abdul Rauf, and Ashfaq Mahmood Qureshi. "Synthesis of new quinoline scaffolds via a solvent-free fusion method and their anti-microbial properties." Tropical Journal of Pharmaceutical Research 17, no. 9 (October 3, 2018): 1853. http://dx.doi.org/10.4314/tjpr.v17i9.25.

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Lesoin, L., C. Crampon, O. Boutin, and E. Badens. "Preparation of liposomes using the supercritical anti-solvent (SAS) process and comparison with a conventional method." Journal of Supercritical Fluids 57, no. 2 (June 2011): 162–74. http://dx.doi.org/10.1016/j.supflu.2011.01.006.

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42

Gupta, Ramashanker, Tulja Bhavani Korukonda, Shailendra Kumar Gupta, Bhanu Pratap Dhamaniya, Priyanka Chhillar, Ram Datt, Pargam Vashishtha, et al. "Room temperature synthesis of perovskite (MAPbI3) single crystal by anti-solvent assisted inverse temperature crystallization method." Journal of Crystal Growth 537 (May 2020): 125598. http://dx.doi.org/10.1016/j.jcrysgro.2020.125598.

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43

Zaini, Ahmad Syahmi, Noor Aiysah Aris, Nicky Rahmana Putra, Syafiza Abd Hashib, Mohd Johari Kamaruddin, Zuhaili Idham, and Mohd Azizi Che Yunus. "Comparison of charantin extract from Momordica Charantia using modified supercritical carbon dioxide and soxhlet extraction method." Malaysian Journal of Fundamental and Applied Sciences 14, no. 4 (December 16, 2018): 462–66. http://dx.doi.org/10.11113/mjfas.v14n4.1092.

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Charantin extract from Momordica Charantia fruits for anti-diabetic compound was proposed via Supercritical Fluid Extraction using carbon dioxide (SC-CO2) as solvent. This method is a promising alternative technique to a conventional Soxhlet and shaking water bath extraction method. Experiments were conducted to analyze the charantin i) with and without modifier (ethanol), ii) Soxhlet extraction with four types of solvent (distilled water, ethanol, dichloromethane, and petroleum ether) and iii) shaking water bath with distilled water as a solvent. A purification step was conducted post extraction to remove intrusive components such as chlorophylls and sugar from analyte in order to quantify charantin extract using high performance liquid chromatography (HPLC). The results show that, in 2.5 hours SC-CO2 with ethanol as modifier gives highest charantin yield with 0.7817 mg charantin per gram sample. In contrast, shaking water bath gives the highest charantin yield for conventional method with 0.712 mg charantin per gram sample during 6 hours of extraction. The result shows that by using SC-CO2 modified with ethanol can be a promising “green” extraction than conventional method.

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Zhou, Yu, Han Zhong, Jianhua Han, Meiqian Tai, Xuewen Yin, Minghua Zhang, Ziyi Wu, and Hong Lin. "Synergistic effect of charge separation and defect passivation using zinc porphyrin dye incorporation for efficient and stable perovskite solar cells." Journal of Materials Chemistry A 7, no. 46 (2019): 26334–41. http://dx.doi.org/10.1039/c9ta09369a.

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A zinc porphyrin dye (YD2-o-C8) was incorporated into perovskite films via a simple anti-solvent dripping method. The synergistic effect of charge separation and defect passivation enables perovskite solar cells with enhanced efficiency and stability.

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Chen, Qiaoshan, Chunlei Zhu, Da Huo, Jiajia Xue, Haoyan Cheng, Baohong Guan, and Younan Xia. "Continuous processing of phase-change materials into uniform nanoparticles for near-infrared-triggered drug release." Nanoscale 10, no. 47 (2018): 22312–18. http://dx.doi.org/10.1039/c8nr07027j.

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A facile method based on anti-solvent-induced precipitation in a fluidic device was developed to continuously process phase-change materials into uniform nanoparticles, together with the encapsulation of an anticancer drug and a near-infrared dye.

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46

Xu, Chuangchuang, Yang Lu, Kaini Xu, and Jiaxi Xu. "BF3·OEt2-Catalyzed Synthesis of anti-β-(N-Arylamino)-α-hydroxynitriles by Regio- and Diastereospecific Ring Opening of 3-Aryloxirane-2-carbonitriles with Anilines." Synthesis 52, no. 04 (November 5, 2019): 602–8. http://dx.doi.org/10.1055/s-0039-1690243.

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A safe and convenient synthetic method to anti-β-(N-arylamino)-α-hydroxynitriles from 3-aryloxirane-2-carbonitriles and anilines was developed under the catalysis of BF3·OEt2 in ethanol. In this method, BF3·OEt2 first reacts with ethanol to produce the true catalyst of super acid H[B(OEt)F3], followed by an acid-catalyzed regio- and diastereospecific ring opening of oxirane-2-carbonitriles with anilines, generating anti-β-(N-arylamino)-α-hydroxynitriles. The method features the advantages of non-metal catalysis, short reaction times, and easy operation, and uses an environmentally friendly solvent.

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Wang, Yunuan, Yang Tang, Jingzan Jiang, Quan Zhang, Jun Sun, Yufeng Hu, Qiuhong Cui, Feng Teng, Zhidong Lou, and Yanbing Hou. "Mixed-dimensional self-assembly organic–inorganic perovskite microcrystals for stable and efficient photodetectors." Journal of Materials Chemistry C 8, no. 16 (2020): 5399–408. http://dx.doi.org/10.1039/d0tc00686f.

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Mixed-dimensional (PEA)₂(MA)₄Pb₅Br₁₆ perovskite microcrystals are synthesized by an anti-solvent vapor-assisted method. The photodetector based on the individual perovskite microcrystal exhibits improved performances and humidity resistance.

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Yasutomi, Rina, Riki Anzawa, Masamitsu Urakawa, and Toyonobu Usuki. "Effective Extraction of Limonene and Hibaene from Hinoki (Chamaecyparis obtusa) Using Ionic Liquid and Deep Eutectic Solvent." Molecules 26, no. 14 (July 14, 2021): 4271. http://dx.doi.org/10.3390/molecules26144271.

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The essential oils of hinoki (Chamaecyparis obtusa) leaves have anti-bacterial, anti-fungal, and relaxation properties that are likely associated with the major components such as sabinene, α-terpinyl acetate, limonene, elemol, myrcene, and hibaene. The present study describes the use of a cellulose-dissolving ionic liquid (IL) [C2mim][(MeO)(H)PO2] and low-toxicity solvents called betaine-based deep eutectic solvents (DESs) for the efficient extraction of hinoki essential oils. As a control method, organic solvent extraction was performed using either hexane, ethyl acetate (EtOAc), or acetone at 30 °C for 1 h. Both the experimental and control methods were conducted under the same conditions, which relied on partial dissolution of the leaves using the IL and DESs before partitioning the hinoki oils into the organic solvent for analysis. Quantitative analysis was performed using gas chromatography–mass spectrometry (GC-MS) in selected ion monitoring (SIM) mode. The results indicated that extraction using the [C2mim][(MeO)(H)PO2]/acetone bilayer system improved the yields of limonene and hibaene, 1.5- and 1.9-fold, respectively, when compared with the control method. In addition, extraction using betaine/l-lactic acid (molar ratio 1:1) gave the greatest yields for both limonene and hibaene, 1.3-fold and 1.5-fold greater, respectively, than when using an organic solvent. These results demonstrate the effective extraction of essential oils from plant leaves under conditions milder than those needed for the conventional method. The less toxic and environmentally begin DESs for the extraction are also applicable to the food and cosmetic industries.

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Anuradha, C. T., and P. Raji. "Synthesis, Characterization and Anti-Microbial Activity of Oxalate-Assisted CO3O4 Nanoparticles Derived from Homogeneous Co-Precipitation Method." International Journal of Nanoscience 18, no. 05 (July 24, 2019): 1950002. http://dx.doi.org/10.1142/s0219581x19500029.

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Nano-sized cobalt oxide particles exhibit unique and fascinating physical, chemical and anti-microbial activity owing to their large surface to volume ratio. The study of metal oxide nanoparticles interaction with pathogenic microorganisms is great importance for various biomedical applications. The main purpose of this work is to study the anti-bacterial and anti-fungal behavior of cobalt oxide (CO3O4) nanoparticles against gram-positive and gram-negative bacterial strains and different fungi. The structure and morphology of CO3O4 nanoparticles were characterized by using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX) and UV-Visible Spectroscopy, respectively. The CO3O4 nanoparticles showed a significant anti-bacterial activity against two gram-positive bacteria, Staphylococcusaureus (G[Formula: see text]), Streptococcus mutans (G[Formula: see text]), and two gram-negative bacteria, Klebsilla pneumonia (G[Formula: see text]), E. coli (G[Formula: see text]), and it shows a good anti-fungal activity against the two different fungal i.e., Aspergillus flavus (F) and Aspergillus niger (F), at different solvents. It was noted that synthesized CO3O4 nanoparticles exhibited the solvent-dependent anti-bacterial activity against all tested bacterial strains. CO3O4 NPs could be employed effectively for anti-microbial applications.

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Mizuno, Hitomi, Hibiki Yoshikawa, and Toyonobu Usuki. "Extraction of Nobiletin and Tangeretin From Peels of Shekwasha and Ponkan Using [C2mim][(MeO)(H)PO2] and Centrifugation." Natural Product Communications 14, no. 5 (May 2019): 1934578X1984581. http://dx.doi.org/10.1177/1934578x19845816.

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The polymethoxyflavonoids nobiletin and tangeretin are isolated from peels of shekwasha ( Citrus depressa Hayata) and ponkan ( Citrus reticulata Blanco). These natural products possess biological activities, including anticancer and anti-inflammation properties. This report describes an efficient method for the extraction and isolation of nobiletin and tangeretin from citrus peels using 1-ethyl-3-methylimidazolium methylphosphonate ([C2mim][(MeO)(H)PO2]) and centrifugation/decantation. The results showed that the extraction yield of nobiletin and tangeretin using [C2mim][(MeO)(H)PO2]/organic solvent (1:1 w/w) was 1.4 to 1.6 times higher than that using organic solvent. This extraction method is expected to be applicable for obtaining other organic compounds from natural sources.

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