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Online since: January 2016
Authors: Erwan Rauwel, Siim Küünal, Sander Kutti, Protima Rauwel, David Wragg, Irina Hussainova
New methodology for the antifungal testing of surfactant-free silver metal nanoparticles for applications in green housing
Siim Küünal1,a, Sander Kutti1, Protima Rauwel2, David Wragg3, Irina Hussainova4,5 and Erwan Rauwel1,b*
1 Tartu College, Tallinn University of Technology, Puiestee 78, 51008 Tartu, Estonia
2 Institute. of Physics, University of Tartu, Ravila 14c, 51010 Tartu, Estonia
3 Univ. of Oslo, Dpt. of Chemistry and SMN, N-0315 Oslo, Norway
4 ITMO University, Kronverksky 49, St.
Silver nanomaterials have a wide range of applications due to their optical [1], catalytic [2], electrical [3] and antimicrobial properties [4] that are highly dependent on their shape, size and structure [5].
XRD pattern on fig. 2a shows that Ag MNPs are highly crystalline with the face-centered cubic structure (JCPDS File No 87-0720).
Wang, Ag/AgBr/TiO2 Visible Light Photocatalyst for Destruction of Azodyes and Bacteria, The Journal of Physical Chemistry B, 110 (2006) 4066-4072
Silver nanomaterials have a wide range of applications due to their optical [1], catalytic [2], electrical [3] and antimicrobial properties [4] that are highly dependent on their shape, size and structure [5].
XRD pattern on fig. 2a shows that Ag MNPs are highly crystalline with the face-centered cubic structure (JCPDS File No 87-0720).
Wang, Ag/AgBr/TiO2 Visible Light Photocatalyst for Destruction of Azodyes and Bacteria, The Journal of Physical Chemistry B, 110 (2006) 4066-4072
Online since: May 2012
Authors: Jun Li, Jia Wei Hu, Yu Chen, Chang Wen Wang, Guo Yang Liu, Yan Li
The structure of magnetic flocs is differ from general flocs (Fig.3).
Because the active groups with long-train structure of PAM can produce the adsorption bridging action, the flocs diameter increase gradually will be beneficial to subsidence rapidly.
Enviroment Chemistry. 16 (1997) 497-504
Environment Chemistry, J. 26 (2007) 175-179.
Because the active groups with long-train structure of PAM can produce the adsorption bridging action, the flocs diameter increase gradually will be beneficial to subsidence rapidly.
Enviroment Chemistry. 16 (1997) 497-504
Environment Chemistry, J. 26 (2007) 175-179.
Online since: April 2024
Authors: Beena Saraswathyamma, Chippy Harish, Sherin Susan Cherian, S.K. Lekshmi, Surya Gopidas, Aswathy S. Murali, Gayathri S. Nair
Poly(O-Phenylene Diamine) Reformed Pencil Graphite as the Disposable Electrochemical Sensor for Voltammetric Analysis of Tryptamine
Aswathy S Murali1a, Chippy Harish2b, Sherin Susan Cherian1c,
Gayathri S Nair1d, Lekshmi S K1e, Surya Gopidas1f,
Beena Saraswathyamma1*
1Department of Chemistry, Amrita Vishwa Vidyapeetham, Amritapuri Campus, Clappana P O, Kollam, 690525, India
2Department of Chemistry, Sree Narayana College, Chegannur, Alappuzha, 689508, India
aampsr4chm22003@am.students.amrita.edu, bchippyharish1998@gmail.com, csherinsusanc@am.students.amrita.edu, dgayathrisnair@am.students.amrita.edu, elekshmisk@am.students.amrita.edu, fsuryagopidas@am.students.amrita.edu
Corresponding author email:beenas@am.amrita.edu*
Keywords: O-Phenylene diamine, electropolymerization, pencil graphite, tryptamine
Abstract.
Since the high level intake of tryptamine can result toxic effects in individuals, scientific community has shown considerable interest in evaluating the presence of this compound in various food products like fermented and conserved or seasoned food stuffs even though its detection is not that simple owing to its structure and relatively low content in complex food items.
The flake alike textured structure belongs to the bare PGE illustrated in Fig 2 (a) where as in 2(b) depicts that flake like nature has reduced and are appeared closer and overlaying to each other.
Since the high level intake of tryptamine can result toxic effects in individuals, scientific community has shown considerable interest in evaluating the presence of this compound in various food products like fermented and conserved or seasoned food stuffs even though its detection is not that simple owing to its structure and relatively low content in complex food items.
The flake alike textured structure belongs to the bare PGE illustrated in Fig 2 (a) where as in 2(b) depicts that flake like nature has reduced and are appeared closer and overlaying to each other.
Online since: April 2015
Authors: Hong Ying Gong, Min Zhu Jiang, Si Fan Wang, Dan Dan Qiu, Bin Wang, Hui Xiao Li
There are mainly in three ways to realize the lightweight of automobile: the first is the optimization of automotive frame and structure; the second is the use of lightweight materials; the third is the use of advanced manufacturing technology.
Different from the ordinary automotive steels, the high strength tailor-welded steel plate has the following advantages: (1) high strength, strong bearing capacity, stable supporting to whole automobile, security, and the increasing stability of products; (2) different types of steel plate welding together can meet the bearing requirements of different sections of automotive parts and optimize automotive structure; (3) the tailor-welded steel plate can effectively reduce the weight in the precondition of ensuing bearing and realize the lightweight of parts; (4) simplify the subsequent processes such as sealing, installation, adjustment, etc. save the cost and improve the efficiency of products [4,5].
The chemistry components of two sheets are shown in Table 1, and the main mechanical parameters of the two sheets are shown in Table 2.
Table 1 Chemistry components of B340/590 and B400/780 Material brands C[%] Si[%] Mn[%] P[%] S[%] Al[%] ≦ ≦ ≦ ≦ ≦ ≦ B340/590 0.18 0.8 2.2 0.035 0.030 0.02 B400/780 0.20 0.8 2.5 0.035 0.030 0.02 Table 2 Main material mechanical parameters of B340/590 and B400/780 Material brands B340/590 340~500 ≥590 202.1 0.28 0.15 ≥18 B400/780 400~590 ≥780 211.5 0.3 0.18 ≥15 Fig. 1 Laser welding system (YLS-5000) The welding process parameter settings and preparation of laser tailor-welded steel plates.
Different from the ordinary automotive steels, the high strength tailor-welded steel plate has the following advantages: (1) high strength, strong bearing capacity, stable supporting to whole automobile, security, and the increasing stability of products; (2) different types of steel plate welding together can meet the bearing requirements of different sections of automotive parts and optimize automotive structure; (3) the tailor-welded steel plate can effectively reduce the weight in the precondition of ensuing bearing and realize the lightweight of parts; (4) simplify the subsequent processes such as sealing, installation, adjustment, etc. save the cost and improve the efficiency of products [4,5].
The chemistry components of two sheets are shown in Table 1, and the main mechanical parameters of the two sheets are shown in Table 2.
Table 1 Chemistry components of B340/590 and B400/780 Material brands C[%] Si[%] Mn[%] P[%] S[%] Al[%] ≦ ≦ ≦ ≦ ≦ ≦ B340/590 0.18 0.8 2.2 0.035 0.030 0.02 B400/780 0.20 0.8 2.5 0.035 0.030 0.02 Table 2 Main material mechanical parameters of B340/590 and B400/780 Material brands B340/590 340~500 ≥590 202.1 0.28 0.15 ≥18 B400/780 400~590 ≥780 211.5 0.3 0.18 ≥15 Fig. 1 Laser welding system (YLS-5000) The welding process parameter settings and preparation of laser tailor-welded steel plates.
Online since: September 2017
Authors: Ksenya Sergeevna Lukуanenko, V.V. Temchenko, V.N. Kustov
Investigating the structure of the energy distribution of the photon radiation passing through the tissue-equivalent medium into which the nanoparticles of heavy elements were introduced, to determine whether there are or not the indications of emergence within the medium of electron-positron pairs and modification of the energy distribution of radiation;
2.
The solutions and nanoparticles were obtained at the Pacific Institute of Bioorganic Chemistry and the Institute of Chemistry of the Far Eastern Branch of the Russian Academy of Sciences.
Research Results As the reference sample in relation to which the studied changes in the gamma-radiation spectrum structure were analyzed, the 0.9% NaCl solution [14] without foreign objects was used.
The solutions and nanoparticles were obtained at the Pacific Institute of Bioorganic Chemistry and the Institute of Chemistry of the Far Eastern Branch of the Russian Academy of Sciences.
Research Results As the reference sample in relation to which the studied changes in the gamma-radiation spectrum structure were analyzed, the 0.9% NaCl solution [14] without foreign objects was used.
Online since: February 2018
Authors: Hui Wang, Zhao Ping Lu, Yuan Wu, P.H. Cao, X.J. Liu
Amorphous alloys, also known as metallic glasses, not only possess excellent mechanical properties, such as high strength and hardness, also have excellent corrosion resistance resulting from the special internal amorphous structures [15,16].
Radiation Physics and Chemistry, 127 (2016) 188-193
Radiation Physics and Chemistry, 117 (2015) 12-22
Composite Structures, 94(4) (2012) 1443-1449.
Radiation Physics and Chemistry, 127 (2016) 188-193
Radiation Physics and Chemistry, 117 (2015) 12-22
Composite Structures, 94(4) (2012) 1443-1449.
Online since: October 2014
Authors: Wu Yi, Wei Chao Tian
Currently, drilled exploration wells mainly concentrate in Fulongquan, Shuangtuozi, Dalaoyefu and Gujiadian Structure in the eastern slope.
[4] Zhang Jinglian,Shi Lanting,Wei Pingsheng,Deep crustal structure and hydrocarbon accumulation in Ordos Basin[J].Xinjiang petroleum geology, 2009,30(2):272-278
Science in China Series B-Chemistry, 1993,23:632-636
Science in China Series B-Chemistry, 1992,(2):185-193
[4] Zhang Jinglian,Shi Lanting,Wei Pingsheng,Deep crustal structure and hydrocarbon accumulation in Ordos Basin[J].Xinjiang petroleum geology, 2009,30(2):272-278
Science in China Series B-Chemistry, 1993,23:632-636
Science in China Series B-Chemistry, 1992,(2):185-193
Online since: June 2025
Authors: Soraya Kerdpiboon, Nur Maiyah, Yatima Auenchitr, Suriyan Supapvanich, Arpassorn Sirijariyawat, Pajaree Ingkasupart, Natthaporn Chotigavin
The freeze-dried process could remove water by sublimation, resulting in the creation of highly porous structures in the freeze-dried products [16] and the products were less damaged.
In addition, SCG could be rehydrated due to the structure of fiber and polysaccharides could absorb water.
Martinez-Saez et al., "Use of spent coffee grounds as food ingredient in bakery products," Food Chemistry 216 (2017) 114-122.
García-Valle, "Ice cream cone fortified with spent coffee ground: Chemical composition, quality and sensory characteristics, and in vitro starch digestibility," Food Chemistry 459 (2024) 140288.
In addition, SCG could be rehydrated due to the structure of fiber and polysaccharides could absorb water.
Martinez-Saez et al., "Use of spent coffee grounds as food ingredient in bakery products," Food Chemistry 216 (2017) 114-122.
García-Valle, "Ice cream cone fortified with spent coffee ground: Chemical composition, quality and sensory characteristics, and in vitro starch digestibility," Food Chemistry 459 (2024) 140288.
Online since: April 2013
Authors: Xu Jun Mi, Bai Qing Xiong, Guo Liang Xie, Xiang Peng Xiao, Qiang Song Wang
It is generally believed that the strengthening of the alloy is mainly attributed to the precipitation of orthorhombic structured δ-Ni2Si during aging process, with lattice parameters of a=0.703 nm, b=0.499 nm, and c=0.372 nm (unconstrained precipitates).
In Cu-Ni-Si alloy, it is difficult to believe that the deformation of peak-aged material involves the Ni2Si precipitates shearing with the matrix, given the complexity of the crystal Structure and the orientation relationship of the precipitates with the matrix.
Jin: Materials Chemistry and Physics, 79 (2003), p. 81–86
Jin: Materials Chemistry and Physics.
In Cu-Ni-Si alloy, it is difficult to believe that the deformation of peak-aged material involves the Ni2Si precipitates shearing with the matrix, given the complexity of the crystal Structure and the orientation relationship of the precipitates with the matrix.
Jin: Materials Chemistry and Physics, 79 (2003), p. 81–86
Jin: Materials Chemistry and Physics.
Online since: August 2009
Authors: Ping Wang, Yi Shi, Yuan Yuan Jia, Jing Tong Zheng, Zong Liang Wang, Yan Yan Chen, Yu Lai Zhou
State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied
Chemistry, Chinese Academy of Sciences, Changchun 130022, China
awangping99@hotmail.com, bshiyi@jlu.edu.cn, cjiayuanyuan5@yahoo.com.cn, dwszjt1@163.com,
ewzl630@yahoo.cn, f didi_yy@163.com, gzhouyl@jlu.edu.cn
Keywords: bacterial cellulose, adipose-derived stem cells, tissue engineering,
scaffold
ABSTRACT
OBJECTIVE: As a kind of nanometer natural material, bacterial cellulose (BC) has been
widely used in the field of food processing, paper making, pharmaceutical science, etc.
In this experiment, ADSCs has successfully been isolated, and inoculated into BC membrane which has three-dimension structure.
After a certain period of culturing to observe attachment nature between cells and material, the results show that BC membrane has good three-dimension structure and hydrophilicity.
In this experiment, ADSCs has successfully been isolated, and inoculated into BC membrane which has three-dimension structure.
After a certain period of culturing to observe attachment nature between cells and material, the results show that BC membrane has good three-dimension structure and hydrophilicity.