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Introduction Quantum dots (QDs) have been explored in biological fields recently because of their unique size-tunable photoluminescence, especially as a new type of labeling and sensing material for biological research.1-4 And compared with traditional organic fluorophores, QDs also show lots of remarkable spectral features such as high photostability, narrow and symmetric emission profile with a broad excitation range, high quantum yields, large molar extinction coefficients, and etc.2, 3 However, QDs have the following problems in practical applications, i.e., stabilities in harsh environments, ultra-sensitivity of the fluorescence to the surface states and quantum dots’ photo-oxidation.5, 6 So coating QDs with inert materials could be one of the possible approaches for solving these problems.
Gin, et al: submitted to Journal of Science (1998) [3] W.C.W.
Nie: submitted to Journal of Science (1998) [4] L.G.
Gao: submitted to Journal of Adv Mater (2005) [6] Y.
Ying: submitted to Journal of Adv Mater (2005) [12] M.

Subsequent batch testing confirmed the material's efficacy in removing naphthalene and phenanthrene.
Materials and Methods Materials Coal (C39H35O10NS) was obtained from the Okaba Coal Depot in Kogi State.
Xin et al., “Adsorption Performance of Modified Graphite from Synthetic Dyes Solutions,” Materials, vol. 17, no. 17, p. 4349, Sep. 2024, doi: 10.3390/ma17174349
Gupta, “Removal of Phenanthrene from Water Using Activated Carbon Developed from Orange Rind,” International Journal of Scientific Research in Environmental Sciences, vol. 3, no. 7, pp. 248–255, Jul. 2015, doi: 10.12983/ijsres-2015-p0248-0255
Hashemi, “Adsorption of polycyclic aromatic hydrocarbons from wastewater by using silica-based organic–inorganic nanohybrid material,” Journal of Water Reuse and Desalination, vol. 5, no. 1, pp. 50–63, Mar. 2015, doi: 10.2166/wrd.2014.013

The present technological development makes us to find and fabricate new materials to replace existing materials.
Also, the need for environmental friendly, easily biodegradable material plays prime role in determining the raw materials.
[2] Shinji Ochi, Mechanical properties of Kenaffibres and Kenaf/PLA composites, Mechanics of Materials, 40, (2008), 446–452
Sanuddin, The effect of processing parameters on the mechanical properties of Kenaffibre plastic composite, Materials and Design, 32, (2011), 1039–1043
Advanced Materials Research. 718-720 (2013) 63-68.

Materials and Methods Graphene is prepared from Rice husk by using simple microwave furnace method.
[5] Charoenchai M, Tungbunsuk S, Keawwattana W, Influence of Graphene Nanoplatelets on silica-filled natural rubber composites: Dispersion mixing and effect on thermal stability, rheological and mechanical properties, Materials Science Forum. 943 (2018) 100–104
Nanoparticle, An overview of preparation and characterization, Journal of Applied Pharmaceutical Science. 1 (2011) 228–234
[28] Rao CNR, Biswas K, Subrahmanyam KS, Govindaraj A, Graphene- the new nanocarbon, Journal of Materials Chemistry. 19 (2009) 2457–2469
[33] Das A, Chakraborty B, Sood AK, Raman spectroscopy of graphene on different substrates and influence of defects, Bulletin of Materials Science. 31 (2008) 579–84

Effect of Maltodextrin in Production of Spray Dried Kaffir Lime Nor Madihah Bt Ibrahim1,a*, Norazah Bt Abd Rahman2,b and Syafiza Bt Abd Hashib1,c 1Faculty of Chemical Engineering UniversitiTeknologi MARA, 40450 Shah Alam, Selangor,Malaysia 2CoRe of Frontier Materials & Industry Applications, UniversitiTeknologi MARA, 40450 Shah Alam, Selangor,Malaysia amadihah_ibrahim@yahoo.com, bnoraz695@salam.uitm.edu.my, csyafiza0358@salam.uitm.edu.my Keywords: Spray drying, maltodextrin, kaffir lime, stickiness Abstract.
powder using spray drying technology, Journal of Food Science and Technology. (2012) 287-293 [7] Maria Jose Fabra, Eliosbel Marquez; Dedora Castro, Amparo, Effect of maltodextrins in the water-content-water-activity-glass transition relationships of noni (Morindacitrifolia L.) pulp powder, Journal of Food Engineering. (2011) 47-51 [8] Tuyen C.Kha, Minh H.
Roach, Effect of spray drying conditions on the physiochemical and antioxidant properties of the Gac (Momordicacochinchinensis) fruit aril powder, Journal of Food Engineering. (2010) 385-392 [9] Athanasia M.
Adamopoulos, A new technique for spray drying orange juice concentrate, Journal of Innovative Food Science and Emerging Technologies. (2010) 342-351 [10] Siew Young Quek, Ngan King Chok, Peter Swedlund, The physicochemical properties of spray dried watermelon powders, Journal of Science Direct. (2007) 386-392 [11] Busso Casati Carolina, Schebor Carolina, Maria C.
Zamora, Chirife Jorge, Glass transition temperatures and some physical and sensory changes in stored spray-dried encapsulated flavors, Journal of Swiss Society of Food Science and Technology. (2006) 1792-1797

Experimental Materials.
Acknowledgements The authors thank the Jiangsu Key Laboratory for Environment Functional Materials (SJHG1306) and the environmental science and technology projects of Suzhou (2015-13) for financial support.
Study on application of hydrotalcite-like materials’ catalytic perform ances in basic reactions [J].
Materials Sciences and Applications , 2011 , 2 , 684-691
Ordnance Material Science and engineering , 2015 , 38(3):136-139.

Journal of Materials Processing Technology. 189(2007)73-84
Journal of Materials Processing Technology, 189(2007)85–96
Journal of Engineering Manufacture. 227(2013)75-83
Journal of Shanghai Jiaotong University. 41(2007)614-618
Journal of Zhejiang University(Engineering Science). 44(2010)982-987

The die failure begins from the surface, so, for the purpose of saving energy and source and exerting full potential properties of materials, surface modification treatment on H13 steel die is necessarily been carried out as the key method to increase the service life of die.
The materials synthesis and synthetic materials sediment can be simultaneous, the ceramic phase is synthesized by in-situ synthesis with a fine grain size and the bonding with metal substrate is good[12-16].
Experimental procedure The raw materials for preparing coating include: powders of 30-50 µm Mo、40-60 µm Cr、30-50 µm Ni and 50-70 µm Fe,as well as 30-50 µm FeB.
Acknowledgment This work is supported by Hubei Provincial Natural Scientific Foundation(2007ABA047) and WuHan Science and Technology Bureau(200910311095).
:submitted to Journal of Journal ofMaterials Processing Technology,153-154（2004）,p.1089-1096 [4] A.Persson, S.Hogmark and J.BergstrÖm:submitted to Journal of International Journal of Fatigue,Vol.26（2004）,p.1095-1107 [5] Gong Yi Kui:submitted to Journal of Surface Technology,Vol.36(6)(2007),p.77-80 [6] Yu Hua Chen,Xiao Chun Wu and Hong Bin Wang:submitted to Journal of Heat Treatment of Metals,Vol.33(6)(2008),p.47-49 [7] Yu Feng Li and Wen Bin Shi:submitted to Journal of Die&Mould Industry,Vol.33(3)(2007), p.65-67 [8] K.Takagi, M.Komai and S.Matsuo:Powder Metallurgy Proceeding of World Congress, PM94,Paris,European Powder Metallurgy Association, 1994.1,p.227-234 [9] K.Takagi, S.Ohira, T.Ide etal: submitted to Journal of Modern Developments in Powder Metallurgy, Vol.16(1985),p.153-166 [10] Xiao Ping Zhou and Lin Hua:submitted to Journal of Journal of Steel and Related Materials,Vol.3(6)(2005),p. 450-452 [11] Xiao Ping Zhou and Xin Bin Hu:submitted to Journal of

Introduction Spunlaced nonwoven fabric is the preferred one-time materials in medical service domain and has been taken great attention all over the world.
BP neural network model In the actual production of spunlaced nonwoven fabric, generally by experience or tests to finally determine the quantitative ratio of raw materials and the surface density .Empirical method was too subjective and the test method required a lot of time, human and material resources[3].
References [1] Yongmei Ma,Yuan Sun:Nonwovens Vol.19(2001),P.20,in Chinese [2] Fubing Peng,Xiaoning Jiao, Xiaofang Ye: Journal of Anhui University of Technology and Science Vol.20(2005),P.61,in Chinese
[8] Xionghua Wu, Ya Liu: Journal of Textile Research Vol.32(2011),P.51,in Chinese
[11] Haitao Cao, Weijie Zhang:China Science and Technology Information Vol.6(2009),P.279,in Chinese.

Materials and Methods Leachate Characteristics.
Critical reviews in environmental science and technology, 32(4) (2002) p. 297-336
Research Journal of Chemical Sciences ISSN, 2231 (2011) p. 606
Journal of hazardous materials, 140(1) (2007) p. 316-324
Journal of hazardous materials, 189(1) (2011) p. 404-413