Sunday 18 March 2007

Bioactive Silk Proteins as Geotextile Substrates



Bioactive Silk Proteins as Geotextile Substrates
Masuhiro Tsukada1, Shafiul Islam2 and Yoshio Ishiguro3


 
1)    National Institute of Sericultural & Agrobiological Sciences, Tsukuba, Ibaraki 305-8634 Japan
2)    TexTek Solutions, Ontario, Canada.   textek.weebly.com    textek@gmail.com
3)   Center for Food Quality, Labeling & Consumer Services, Nakadori, Yokohama 231-0003 Japan
 

Dedicated to Prof. Dr. Sueo Kawabata, CText FTI (1931-2001)

 

Abstract

There is a wave of interest in using natural textile substrates in diverse bioengineering applications1-9 such as soil erosion and sedimentation control designs especially in environmentally sensitive areas. This research article evaluates the tensile properties and morphological features of silk fibers as a function of degree of biodegradation, burring time in the soil.

Introduction
Natural biopolymers including silk proteins seem critical geotextile materials as microorganisms decompose them gradually.  Silk fibers provide superior performance as a bioactive surgical suture even under the most demanding medical conditions.  Silk fibers are conducive to living cells growth that attached on the surface of silk fibers.

We studied the in vitro biodegradation of silk fibers and films with proteolytic enzymes and examined the tensile properties of silk fibers with increasing incubation time1.  We used silk protein fibers considering their potential geotextile applications, examined their tensile properties and morphological features as biodegradable geotextile substrates.

Experimental

Materials

Silk fibers2 with different chemical compositions are obtained from domestic silkworm, Bombyx mori and wild silkworm, Antheraea pernyi. Degummed silk fibers obtained by reeling the cocoons fibers were buried in the horticultural gardening soil (Kompal, Bark Compost Association, Tokyo) up to 3 months.  The temperature was maintained at around 24-30 °C throughout the experiment under moist condition by sprinkling water every 2-5 days to enhance biodegradation process.

Measurements

The tensile properties of silk fibers were evaluated by Tensilon UTM-II (Orientec, Tokyo) under standard conditions with 500 gf load-cell, 100 mm gauge length and 40 mm/min strain rate.   The surface morphology was examined with a JOEL JAX-333S scanning electron microscope (SEM), after gold coating at 15 keV acceleration voltage.

Results and discussions
Tensile properties
Table 1 compares the tensile properties of silk fibers, which were buried in soil for predetermined periods.  The tensile strength, elongation and moduli of Bombyx mori and Antheraea pernyi silk fiber buried in the ground decreases with increasing burring times.  It is obvious that the tensile strength of Antheraea pernyi Tussah silk fibers deteriorates more rapidly than Bombyx mori silk fiber, when they are buried in the soil.  

Table 1: Biodegradation of silk fibers under the soil

Bombyx mori silk
Tussah silk
Tensile Parameters
Embedding Period (months)

0
1
2
0
1
2
Strength (gf)
3.5
1.8
1
3.6
1
0.3
Elongation (%)
15.5
7
5.2
40.1
29
21
Modulus (kg/mm2)
850
760
380
730
322
205




Textiles & Clothing Bangladesh :: Jan-Feb-Mar 2007
Morphology

10 Îŧm
 
















20 Îŧm
 

Fig. 1 Biodegradation of Bombyx mori silk fibre


Fig. 2 Biodegradation: Antheraea Pernyi silk fibre




Figure 1 and 2 shows the Scanning Electron Microscopy SEM images: biodegradation features of Bombyx mori and Antheraea Pernyi silk fibers, respectively, which were buried under the soil for 2 months.  Silk fibers prior to decomposition tests were apparently smooth.  It is apparent that the microorganisms eroded the Antheraea pernyi fiber surface and created numerous voids, while less voids are distinct on the Bombyx mori silk fiber probably due to their ordered dense microstructures.
Conclusion
The microorganisms in the soil do not practically decompose artificial polymers, such as polystyrene, polyethylene, polypropylene and polyester.  This creates enormous environmental concerns.  The biodegradation of protein polymers offers significant advantages from additional recycling and decomposition. Silk’s excellent inherent tensile properties and subsequent biodegradability makes them unique geotextile materials.

The potential grafting, coating and engineering scopes to tailor specialized functional features to bioactive natural protein polymers have created a wave of interest in demanding applications1-9.  

At the outset silk protein fibers exhibit excellent tensile properties, their inherent properties decrease as a function of burring periods due to their time dependent degradation by various   microorganisms in the burring soil.  The decay in tensile properties of tussah silk fibers was higher than that of Bombyx mori silk, which matched the finding - tussah silk fiber contained highly porous microstructure, such as visual voids4 with large size and leaf-pleated sheet structure within the silk fiber.  This leads to rapid degradation of tussah silk fiber following decomposition by various microorganisms contrary to Bombyx mori silk fibers with highly consolidated microstructure, yielded a slow rate of biodegradation than that of tussah silk fibers.

Silk fibers are fairly expensive compared to other natural fibers, cotton and cellulose and as well as commonly used artificial man made fibers. We can however cut costs by using silk fibrous by-products. Silk fibers exhibit excellent elastic modulus and high absorbency5. Since living cells grow cohesively on the surface of silk substrates - these biophysical properties are critical for certain geotextile applications.

References
1. T Arai, G Freddi, R Innocenti, M Tsukada, Biodegradation of Bombyx mori Silk Fibroin Fibers and Films, J. of Appl. Poly. Sci., 91, 2383-2390, 2004
2. M Tsukada et al., Structural Changes of Silk Fibers Induced by Heat-Treatment, J.of Appl. Poly. Sci., 46, 1945-1953, 1992
3. S Islam, Synthetic Silk Synthesis, Technitex Symposium, BTTG, Leeds, UK 6-7 Nov, 2002
4. T Narumi, M. Kobayashi, A Method of Morphometry for Voids in Saturniidae Cocoon Filaments Using Image Processing Techniques, J. Seri. Sci. of Japan, 64, 203-208, 1995
5. S Islam, et al., Methods and apparatus for spinning spider silk protein, USP 7,057,023 Jun 6, 2006
6. M Tsukada, S Islam et al., Antibiotic Silk Substrates for Healthcare, Text. J. 121(5) 47-49, 2004
7. C Karatzas, S Islam et al., High-toughness Spider Silk Fibers Spun from Soluble rc-Silk Produced in Mammalian Cells, Biopolymers, Vol. 8: Polyamides and Complex Proteinaceous Materials II: Chapter 5, ISBN 3-527-30223-9, Wiley-VCH: Weinheim Germany. Apr 97-117, 2003
8. M Tsukada, S Islam et al., Microwave Irradiation Technique to Enhance Protein Fiber Properties, Autex Res. J. 5(1) 40-48, 2005
9. M Tsukada, S Islam et al., Enhancing Sorption Properties of Natural Fibrous Protein Substrates.  Part I: Absorption of malodorous gases, Text. J., 121(6) 48-50, 2004

TTS :: NIAS R&D Initiative
:: 20060906 ::
::::

Thursday 15 March 2007

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা

by Shafiul Islam on Saturday, October 15, 2011 at 11:02am ·

āĻ‰ā§ŽāĻ¸āĻ°্āĻ—ঃ  āĻ¸ৃāĻ¸্āĻŸিāĻ° āĻ¸েāĻŦāĻ•, āĻ°েāĻĄিāĻ“ āĻ†āĻŦিāĻ¸্āĻ•াāĻ°āĻ• āĻ¸্āĻ¯াāĻ° āĻœāĻ—āĻĻীāĻļ āĻšāĻ¨্āĻĻ্āĻ° āĻŦāĻ¸ু - āĻ¯াāĻ° āĻ¸্āĻĒāĻ°্āĻļে āĻĒৃāĻĨিāĻŦী āĻ§āĻ¨্āĻ¯!

āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা। āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻĒ্āĻ°āĻĨāĻŽ āĻŽāĻšিāĻ˛া āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻĒ্āĻ°āĻ¯ুāĻ•্āĻ¤িāĻŦিāĻĻ। āĻŦāĻ°্āĻ¤āĻŽাāĻ¨ে āĻŦাংāĻ˛াāĻĻেāĻļ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻŽিāĻ˛āĻ¸্‌ āĻ•āĻ°্āĻĒোāĻ°েāĻļāĻ¨েāĻ° āĻ‰āĻĒ āĻŽāĻšাāĻŦ্āĻ¯āĻŦāĻ¸্āĻĨাāĻĒāĻ•।
ā§§ā§¯ā§Žā§§-ā§Žā§¨ āĻļিāĻ•্āĻˇাāĻŦāĻ°্āĻˇে āĻ†āĻŽāĻ°া āĻĸাāĻ•া āĻŦিāĻļ্āĻŦāĻŦিāĻĻ্āĻ¯াāĻ˛ā§ŸেāĻ° āĻ…āĻ§ীāĻ¨ে āĻŦাংāĻ˛াāĻĻেāĻļ āĻ•āĻ˛েāĻœ āĻ…āĻĢ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ‡āĻž্āĻœিāĻ¨িā§ŸাāĻ°িং āĻāĻ¨্āĻĄ āĻŸেāĻ•āĻ¨োāĻ˛āĻœি āĻšāĻ¤ে āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻĒ্āĻ°āĻ¯ুāĻ•্āĻ¤িāĻ¤ে ā§Ē āĻŦāĻ›āĻ° āĻŽেā§ŸাāĻĻী āĻĄিāĻ—্āĻ°ী āĻ•োāĻ°্āĻ¸ে āĻļিāĻ•্āĻˇাāĻœীāĻŦāĻ¨ āĻļুāĻ°ু āĻ•āĻ°ি। āĻ…āĻ¸ুāĻ¸্āĻĨ āĻ°াāĻœāĻ¨ীāĻ¤িāĻ° āĻĒāĻ°িāĻŖāĻ¤ি,āĻ¸েāĻļāĻ¨ āĻœāĻŸেāĻ° āĻœāĻŸিāĻ˛āĻ¤াā§Ÿ āĻ†āĻŽাāĻĻেāĻ° āĻĻীāĻ°্āĻ˜ āĻ›াāĻ¤্āĻ°āĻœীāĻŦāĻ¨। āĻ¸āĻšāĻĒাāĻ ী āĻšিāĻ¸েāĻŦে āĻ†āĻŽāĻ°া āĻ…āĻ¨েāĻ•āĻŸা āĻĒāĻĨ āĻšেāĻŸেāĻ›ি āĻāĻ•āĻ¸াāĻĨে। āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ•āĻ˛েāĻœে āĻāĻ•āĻŸি āĻ¸ুāĻ¸্āĻĨ āĻĒāĻ°িāĻŦেāĻļ āĻ—ā§œাāĻ° āĻ¸্āĻŦāĻĒ্āĻ¨ে āĻ†āĻŽāĻ°া āĻ›িāĻ˛াāĻŽ āĻ¸āĻšāĻ¯োāĻĻ্āĻ§া।
āĻ¸āĻ¤্āĻ¯েāĻ° āĻ°ূāĻĒ āĻāĻ•āĻŸাāĻ‡। āĻ¸āĻ¤্āĻ¯ āĻ…āĻ¨িāĻ¨্āĻĻ্āĻ¯ āĻ¸ুāĻ¨্āĻĻāĻ°। āĻ†āĻ° āĻ¸্āĻŦāĻĒ্āĻ¨েāĻ° āĻļāĻ•্āĻ¤ি āĻ…āĻ¸ীāĻŽ। āĻ†āĻ° āĻ¤াāĻ‡ āĻ†āĻŽāĻ°া āĻ†āĻœāĻ“ āĻāĻ—িā§Ÿে āĻšāĻ˛েāĻ›ি-āĻĒ্āĻ°āĻ¤্āĻ¯ā§Ÿ āĻ“ āĻĒ্āĻ°āĻ¤িāĻļ্āĻ°ুāĻ¤ি āĻ¨িā§Ÿে, āĻ¸ুāĻ¨্āĻĻāĻ° āĻ†āĻ—াāĻŽীāĻ° āĻĒ্āĻ°āĻ¤্āĻ¯াāĻļাā§Ÿ।
āĻāĻŦাāĻ° āĻĻেāĻļে āĻĢিāĻ°ে TexTek Solutions āĻ“ āĻŦিāĻœ্āĻžাāĻ¨ী.com-āĻāĻ° āĻĒāĻ•্āĻˇ āĻĨেāĻ•ে āĻŽুāĻ–োāĻŽুāĻ–ি āĻšāĻ‡ āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨েāĻ°। āĻļুāĻ¨ুāĻ¨ āĻ¤াāĻšāĻ˛ে āĻ†āĻŽাāĻĻেāĻ° āĻ†āĻ˛াāĻĒāĻšাāĻ°িāĻ¤াāĻ° āĻ…ংāĻļāĻŦিāĻļেāĻˇঃ

āĻļāĻĢিāĻ‰āĻ˛ āĻ‡āĻ¸āĻ˛াāĻŽ : āĻļুāĻ­েāĻš্āĻ›া āĻ“ āĻ…āĻ­িāĻ¨āĻ¨্āĻĻāĻ¨। āĻĒāĻĻোāĻ¨্āĻ¨āĻ¤ি āĻ“ āĻ¨āĻ¤ুāĻ¨ āĻĻাā§ŸিāĻ¤্āĻŦ āĻ•েāĻŽāĻ¨ āĻ˛াāĻ—āĻ›ে?
āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ : āĻ…āĻŦāĻļ্āĻ¯āĻ‡ āĻ†āĻ¨āĻ¨্āĻĻেāĻ°, āĻ¯ে āĻ•োāĻ¨ āĻĒ্āĻ°াāĻĒ্āĻ¤ীāĻ‡ āĻ†āĻ¨āĻ¨্āĻĻāĻĻাā§ŸāĻ•। āĻ•েāĻŦāĻ˛ āĻŽাāĻ¤্āĻ° āĻĻূāĻ°্āĻ¨াāĻŽ āĻ›াā§œা। āĻ¤াāĻ‡ āĻ¨āĻ¤ুāĻ¨ āĻĒāĻĻāĻŦী āĻ“ āĻĻাā§ŸিāĻ¤্āĻŦ āĻ¸āĻŦāĻ•িāĻ›ুāĻ‡ āĻ–ুāĻŦ āĻ­াāĻ˛ো āĻ˛াāĻ—āĻ›ে।

āĻļ. āĻ‡. : āĻŦāĻ—ুā§œাāĻ° āĻŽেā§Ÿে āĻ¤ুāĻŽি। āĻ¤োāĻŽাāĻ° āĻļৈāĻļāĻŦ āĻ•েāĻŽāĻ¨ āĻ•েāĻŸেāĻ›ে?
āĻ†.āĻ°. : āĻŦāĻ—ুā§œাāĻ° āĻŽেā§Ÿে āĻšāĻ˛েāĻ“ āĻļৈāĻļāĻŦ, āĻ•ৈāĻļāĻ°,āĻ¯ৌāĻŦāĻ¨ āĻāĻŽāĻ¨āĻ•ি āĻŦāĻ°্āĻ¤āĻŽাāĻ¨ āĻŦāĻ¸āĻŦাāĻ¸ āĻĸাāĻ•াāĻ¤ে। āĻ¤াāĻ‡ āĻ†āĻ° āĻĻāĻļ-āĻĒাঁāĻšāĻŸা āĻŽেā§ŸেāĻ° āĻŽāĻ¤ āĻ†āĻŽাāĻ° āĻļৈāĻļāĻŦ āĻ›িāĻ˛ āĻ†āĻ¨āĻ¨্āĻĻāĻĻাā§ŸāĻ• āĻ“ āĻ¸্āĻŽৃāĻ¤ি āĻ°োāĻŽাāĻž্āĻšāĻ•āĻ°।

āĻļ. āĻ‡. :     āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻĒ্āĻ°āĻ¯ুāĻ•্āĻ¤িāĻ° āĻĒেāĻļা āĻ•েāĻ¨ āĻŦেāĻ›ে āĻ¨িāĻ˛ে?
āĻ†.āĻ°. :     āĻ›োāĻŸāĻŦেāĻ˛া āĻĨেāĻ•ে āĻ†ঁāĻ•াāĻ†ঁāĻ•িāĻ¤ে āĻŦেāĻļ āĻšাāĻ¤ āĻ›িāĻ˛। āĻ¤াāĻ‡ āĻ­েāĻŦেāĻ›িāĻ˛াāĻŽ āĻ†āĻ°্āĻ•িāĻŸেāĻ•āĻšাāĻ°-āĻ āĻĒā§œāĻŦ।āĻ•িāĻ¨্āĻ¤ু āĻ¸েāĻ–াāĻ¨ে āĻšাāĻ¨্āĻ¸ āĻĒেāĻ˛াāĻŽ āĻ¨া। āĻ†āĻ° āĻĄাāĻ•্āĻ¤াāĻ°িāĻ¤ে āĻšাāĻ¨্āĻ¸ āĻĒেāĻ˛াāĻŽ āĻ¤াāĻ“ āĻĸাāĻ•াāĻ° āĻŦাāĻ‡āĻ°ে। āĻŦাāĻŦা āĻŽাāĻ•ে āĻ›েā§œে āĻ•োāĻĨাāĻ“ āĻ¯াāĻŦ āĻ¨া। āĻ¤াāĻ‡ āĻ…āĻŦāĻļেāĻˇে āĻŦাāĻŦাāĻ° āĻ‡āĻš্āĻ›াā§Ÿ āĻāĻ‡ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ‡āĻž্āĻœিāĻ¨িā§ŸাāĻ°িং-āĻ āĻ­āĻ°্āĻ¤ি āĻšāĻ˛াāĻŽ। āĻĒ্āĻ°āĻĨāĻŽ āĻ“ āĻāĻ•āĻŽাāĻ¤্āĻ° āĻŽāĻšিāĻ˛া āĻšিāĻ¸েāĻŦে  āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ‡āĻž্āĻœিāĻ¨িā§ŸাāĻ°িং-āĻ āĻ­াāĻ˛োāĻ­াāĻŦেāĻ‡ āĻĒā§œাāĻļোāĻ¨া āĻ•āĻ°āĻ˛াāĻŽ āĻāĻŦং āĻāĻ‡ āĻ˛াāĻ‡āĻ¨ে āĻ­াāĻ˛োāĻ­াāĻŦে āĻšাāĻ•ুāĻ°ী āĻ•āĻ°ে āĻāĻ¤āĻĻূāĻ° āĻĒāĻĨāĻ¯াāĻ¤্āĻ°া। āĻ¸āĻŦāĻ•িāĻ›ু āĻŽিāĻ˛িā§Ÿে āĻŽāĻ¨ে āĻšā§Ÿ āĻŦাāĻŦা āĻ†āĻŽাāĻ•ে āĻ¸āĻ িāĻ• āĻĒāĻĨেāĻ‡ āĻĒāĻ°িāĻšাāĻ˛িāĻ¤ āĻ•āĻ°েāĻ›িāĻ˛েāĻ¨।

āĻļ. āĻ‡. :        āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻĒ্āĻ°াā§Ÿ ā§Žā§Ļ%  āĻ°āĻĒ্āĻ¤াāĻ¨ী āĻ†ā§Ÿ āĻ†āĻ¸ে āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ āĻĨেāĻ•ে। āĻāĻ•্āĻˇেāĻ¤্āĻ°ে āĻ†āĻŽāĻ°া āĻ•ি āĻ•ি āĻš্āĻ¯াāĻ˛েāĻž্āĻœেāĻ° āĻŽুāĻ–োāĻŽুāĻ–ি?
āĻ†. āĻ°. :      āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻ¸āĻ°্āĻŦāĻŦৃāĻšā§Ž āĻ°āĻĒ্āĻ¤াāĻ¨ী āĻ†ā§Ÿ āĻ†āĻ¸েāĻ‡ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ āĻšāĻ¤ে। āĻ†āĻ° āĻāĻ‡ āĻļিāĻ˛্āĻĒ āĻ¯েāĻŽāĻ¨ āĻĻেāĻļেāĻ° āĻŦাāĻ‡āĻ°ে āĻ¤েāĻŽāĻ¨ি āĻĻেāĻļেāĻ° āĻ­িāĻ¤āĻ°ে āĻŦিāĻ­িāĻ¨্āĻ¨ āĻ¸āĻŽāĻ¸্āĻ¯াāĻ° āĻŽুāĻ–োāĻŽুāĻ–ি। āĻ‰āĻĻাāĻšāĻ°āĻŖāĻ¸্āĻŦāĻ°ূāĻĒ āĻŦāĻ˛া āĻ¯াā§Ÿ āĻ¯ে, āĻ†āĻŽাāĻĻেāĻ° āĻĒ্āĻ°āĻ¤িāĻŦেāĻļী āĻĻেāĻļāĻ—ুāĻ˛োāĻ° āĻ¸াāĻĨে āĻ¯েāĻŽāĻ¨ āĻĒ্āĻ°āĻ¤িāĻ¯োāĻ—িāĻ¤াāĻ° āĻ—ুāĻŖāĻ—āĻ¤ āĻŽাāĻ¨, āĻŦিāĻ­িāĻ¨্āĻ¨ āĻĄিāĻœাāĻ‡āĻ¨, āĻŦিāĻ­িāĻ¨্āĻ¨ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻŽ্āĻ¯াāĻŸেāĻ°িā§ŸাāĻ˛ āĻŦ্āĻ¯াāĻŦāĻšাāĻ° āĻ¸āĻ°্āĻŦোāĻĒāĻ°ি āĻ•োāĻŸাāĻ­িāĻ¤্āĻ¤িāĻ• āĻŦ্āĻ¯াāĻŦāĻ¸া āĻ¯া āĻŦāĻ°্āĻ¤āĻŽাāĻ¨ে āĻŦāĻ¨্āĻ§ āĻšāĻ˛েāĻ“ āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻ…āĻŦāĻ¸্āĻĨাāĻ¨ āĻ†āĻ—েāĻ° āĻ¤ুāĻ˛āĻ¨াā§Ÿ āĻ­াāĻ˛ো āĻ†āĻ›ে। āĻ†āĻ° āĻĻেāĻļেāĻ° āĻ…āĻ­্āĻ¯āĻ¨্āĻ¤āĻ°ে āĻ¯েāĻŽāĻ¨- āĻŦ্āĻ¯াāĻ•āĻ“ā§ŸাāĻ°্āĻĄ āĻ˛িংāĻ•েāĻœ, āĻ¯া āĻ•িāĻ¨া āĻ†āĻŽাāĻĻেāĻ° āĻĻেāĻļে āĻ˜াāĻŸāĻ¤ি āĻ°ā§ŸেāĻ›ে। āĻ¨āĻ¤ুāĻŦা āĻ†āĻŽāĻ°া āĻāĻ•্āĻˇেāĻ¤্āĻ°ে āĻ†ā§Ÿ āĻ•āĻ°āĻ¤ে āĻĒাāĻ°āĻ¤াāĻŽ।

āĻļ. āĻ‡. :        āĻāĻ¸āĻŦ āĻ¸āĻŽāĻ¸্āĻ¯াāĻ•ে āĻ•িāĻ­াāĻŦে āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াā§Ÿ āĻ°ূāĻĒ āĻĻিāĻ¤ে āĻĒাāĻ°ি?
āĻ†. āĻ°. :      āĻ†āĻŽাāĻ° āĻŽāĻ¤ে āĻŦ্āĻ¯াāĻ•āĻ“ā§ŸাāĻ°্āĻĄ āĻ˛িংāĻ•েāĻœ-āĻāĻ° āĻŽāĻ¤ āĻ¸āĻŽāĻ¸্āĻ¯াāĻ° āĻŽোāĻ•াāĻŦেāĻ˛া āĻ•āĻ°āĻ¤ে āĻšāĻ˛ে āĻ¸āĻ°āĻ•াāĻ°ী āĻ“ āĻŦেāĻ¸āĻ°āĻ•াāĻ°ী āĻ­াāĻŦে āĻ‰āĻĻ্āĻĻ্āĻ¯েāĻ— āĻ—্āĻ°āĻšāĻŖ āĻ•āĻ°āĻ¤ে āĻšāĻŦে। āĻāĻ¤ে āĻ¯েāĻŽāĻ¨ āĻĻāĻ°āĻ•াāĻ° āĻ¨āĻ¤ুāĻ¨ āĻ¨āĻ¤ুāĻ¨ āĻ¸্āĻĒিāĻ¨িং āĻŽিāĻ˛āĻ¸্‌ āĻ¤ৈāĻ°ি āĻ•āĻ°া āĻāĻŦং āĻĒāĻ°āĻŦāĻ°্āĻ¤ী āĻšেāĻ‡āĻ¨ āĻ…āĻĢ āĻĒ্āĻ°āĻ¸েāĻ¸ āĻ…āĻ¨ুāĻ¯াā§Ÿী āĻŽিāĻ˛/āĻĢ্āĻ¯াāĻ•্āĻŸāĻ°ী āĻ¤ৈāĻ°ি āĻ•āĻ°ে āĻĢিāĻ¨িāĻ•্āĻ¸ āĻĒ্āĻ°োāĻĄাāĻ•্āĻŸ āĻ—াāĻ°্āĻŽেāĻ¨্āĻŸ āĻĒāĻ°্āĻ¯āĻ¨্āĻ¤ āĻĢ্āĻ¯াāĻ•্āĻŸāĻ°ী āĻ—āĻ°ে āĻ¤োāĻ˛া। āĻāĻ° āĻœāĻ¨্āĻ¯ āĻĒ্āĻ°ā§ŸোāĻœāĻ¨ āĻĒ্āĻ°āĻĨāĻŽāĻ¤ āĻĒāĻ°িāĻ•āĻ˛্āĻĒāĻ¨া। āĻĒ্āĻ°āĻ¤ি āĻŦāĻ›āĻ° āĻ—ā§œে āĻ•āĻ¤ āĻ—āĻœ āĻ•াāĻĒā§œ(āĻŦুāĻ¨āĻ¨), āĻ•āĻ¤ āĻ—āĻœ āĻ¨ীāĻŸ āĻ•াāĻĒā§œ āĻ˛াāĻ—āĻŦে, āĻāĻ° āĻœāĻ¨্āĻ¯ āĻ•āĻ¤ āĻ—āĻœ āĻ¸ুāĻ¤াāĻ° āĻĒ্āĻ°ā§ŸোāĻœāĻ¨ āĻ¸ে āĻ…āĻ¨ুāĻ¯াā§Ÿী āĻŦ্āĻ¯াāĻ•āĻ“ā§ŸাāĻ°্āĻĄ āĻ˛িংāĻ•েāĻœ-āĻāĻ° āĻŽিāĻ˛/āĻĢ্āĻ¯াāĻ•্āĻŸāĻ°ী āĻ—ā§œে āĻ¤ুāĻ˛āĻ¤ে āĻšāĻŦে। āĻ¨āĻ¤ুāĻŦা āĻ°-āĻŽ্āĻ¯াāĻŸেāĻ°িā§ŸাāĻ˛েāĻ° āĻ˜াāĻŸāĻ¤ি āĻĨেāĻ•ে āĻ¯াāĻŦে āĻ¯া āĻŦিāĻĻেāĻļ āĻšāĻ¤ে āĻ†āĻ¨āĻ¤ে āĻšāĻŦে। āĻāĻ›াā§œা āĻ†āĻŽাāĻĻেāĻ° āĻāĻ‡ āĻļিāĻ˛্āĻĒāĻ•ে āĻ°াāĻœāĻ¨ীāĻ¤িāĻ° āĻ†āĻ“āĻ¤াāĻŽুāĻ•্āĻ¤ āĻ°াāĻ–āĻ¤ে āĻšāĻŦে।
                   āĻ†āĻŽি āĻŽāĻ¨ে āĻ•āĻ°ি āĻ¯āĻĻি āĻ•োāĻ¨ āĻ•্āĻˇেāĻ¤্āĻ°ে āĻ—্āĻ°ুāĻĒ āĻŦা āĻœোāĻ¨ āĻ“ā§ŸাāĻ‡āĻœ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ¸েāĻ•্āĻŸāĻ° āĻ—ā§œে āĻ¤োāĻ˛া āĻ¯াā§Ÿ āĻ¯েāĻŽāĻ¨ āĻ¨ীāĻŸিং, āĻ‰āĻ‡āĻ­িং, āĻĄাāĻ‡ং āĻ‡āĻ¤্āĻ¯াāĻĻি āĻĢ্āĻ¯াāĻ•্āĻŸāĻ°ীāĻ—ুāĻ˛ো āĻ¨িāĻ°্āĻĻিāĻˇ্āĻŸ āĻāĻ˛াāĻ•াāĻ­িāĻ¤্āĻ¤িāĻ• āĻšেāĻ‡āĻ¨-āĻ“ā§ŸাāĻ‡āĻœ āĻ—ā§œে āĻ¤োāĻ˛া āĻšā§Ÿ āĻ¤āĻŦে āĻ…āĻ¨েāĻ• āĻ•্āĻˇেāĻ¤্āĻ°ে āĻĒ্āĻ°োāĻĄাāĻ•āĻļāĻ¨ āĻ•āĻ¸্āĻŸ āĻ†āĻ°ো āĻ¨িāĻŽ্āĻ¨ে āĻ†āĻ¨া āĻ¸āĻŽ্āĻ­āĻŦ āĻšāĻŦে। āĻāĻ›াā§œাāĻ“ āĻŦিāĻ­িāĻ¨্āĻ¨ āĻ—āĻŦেāĻˇāĻŖাāĻ° āĻŽাāĻ§্āĻ¯āĻŽে āĻ†āĻ°ো āĻŦিāĻ­িāĻ¨্āĻ¨ āĻĒāĻĻāĻ•্āĻˇেāĻĒ āĻ—্āĻ°āĻšāĻŖ āĻ•āĻ°ে āĻāĻ‡ āĻļিāĻ˛্āĻĒেāĻ° āĻ†āĻ°ো āĻ‰āĻ¨্āĻ¨āĻ¤ি āĻ•āĻ°া āĻ¸āĻŽ্āĻ­āĻŦ।

āĻļ. āĻ‡. :        āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ¸েāĻ•্āĻŸāĻ°ে āĻ‰āĻ¨্āĻ¨āĻ¤িāĻ° āĻœāĻ¨্āĻ¯ āĻ•োāĻ¨ āĻĒāĻ°াāĻŽāĻ°্āĻļ... ...
āĻ†. āĻ°. :      āĻ…āĻŦāĻļ্āĻ¯āĻ‡ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛ āĻ¸েāĻ•্āĻŸāĻ° āĻāĻ•āĻŸি āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻļিāĻ˛্āĻĒ। āĻ†āĻ° āĻ†āĻŽāĻ°া āĻ…āĻŦāĻļ্āĻ¯āĻ‡ āĻ†āĻļাāĻŦাāĻĻী āĻāĻ‡ āĻ¸েāĻ•্āĻŸāĻ° āĻ¨িā§Ÿে āĻ¯া āĻ•িāĻ¨া āĻ†āĻ—াāĻŽী ā§§ā§Ļ āĻŦāĻ›āĻ° āĻĒāĻ°ে āĻ†āĻ°ো āĻŦৃāĻšāĻ¤্āĻ¤āĻ° āĻ†āĻ•াāĻ°ে āĻŦাংāĻ˛াāĻĻেāĻļেāĻ° āĻ…āĻ°্āĻĨāĻ¨ীāĻ¤িāĻ¤ে āĻ…āĻŦāĻĻাāĻ¨ āĻ°াāĻ–āĻŦে-āĻ¤া āĻ¯েāĻŽāĻ¨ āĻ—ুāĻŖāĻ—āĻ¤ āĻĻিāĻ• āĻĻিā§Ÿে āĻšোāĻ• āĻ†āĻ° āĻ¸ংāĻ–্āĻ¯াāĻ—āĻ¤ āĻĻিāĻ• āĻĻিā§Ÿে āĻšোāĻ•।āĻāĻ‡ āĻļিāĻ˛্āĻĒ āĻļুāĻ§ু āĻ°āĻĒ্āĻ¤াāĻ¨ীāĻ° āĻ•্āĻˇেāĻ¤্āĻ°েāĻ‡ āĻ¨ā§Ÿ āĻ¨ā§Ÿ, āĻĻেāĻļেāĻ° āĻ…āĻ­্āĻ¯āĻ¨্āĻ¤āĻ°েāĻ“ āĻāĻ° āĻšাāĻšিāĻĻা āĻŦিāĻ°াāĻŸ āĻ¯া āĻāĻ–āĻ¨ো āĻ†āĻŽāĻ°া āĻĒূāĻ°āĻŖ āĻ•āĻ°āĻ¤ে āĻĒাāĻ°িāĻ¨ি। āĻ†āĻļা āĻ•āĻ°ি āĻ†āĻ—াāĻŽী āĻĻāĻļ āĻŦāĻ›āĻ°ে āĻ¤া āĻ†āĻŽাāĻĻেāĻ° āĻĻেāĻļেāĻ° āĻ…āĻ­্āĻ¯āĻ¨্āĻ¤āĻ°ীāĻŖ āĻšাāĻšিāĻĻা āĻĒূāĻ°āĻŖ āĻ•āĻ°āĻ¤ে āĻĒাāĻ°āĻŦে āĻāĻŦং āĻāĻ° āĻ¸াāĻĨে āĻŦিāĻĻেāĻļেāĻ° āĻšাāĻšিāĻĻা āĻ…āĻ¨ুāĻ¯াā§Ÿী āĻ°āĻĒ্āĻ¤াāĻ¨ী āĻ•āĻ°āĻ¤ে āĻĒাāĻ°āĻŦে। āĻ­āĻŦিāĻˇ্āĻ¯āĻ¤ে āĻ¨āĻ¤ুāĻ¨ āĻ¨āĻ¤ুāĻ¨ āĻŸেāĻ•্āĻ¸āĻŸাāĻ‡āĻ˛েāĻ° āĻŦিāĻ­িāĻ¨্āĻ¨ āĻ§āĻ°āĻ¨েāĻ° āĻŽিāĻ˛/āĻĢ্āĻ¯াāĻ•্āĻŸāĻ°ী āĻ—ā§œে āĻ‰āĻ āĻŦে āĻāĻ‡ āĻĒ্āĻ°āĻ¤্āĻ¯াāĻļাāĻ‡ āĻ•āĻ°āĻ›ি।

Aziza Rahaman Sylvia with the distinguished textile engineers at the ITET Convention in Dhaka 20060302


āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা 

Kritoggota: Mahfuz many thanks for typing this article.
Picture: Aziza Rahaman Sylvia with the distinguished textile engineers at the ITET Convention in Dhaka 20060302
Courtesy of www.biggani.org: http://biggani.com/content/view/376/158/
Published at biggani.org on 15 March 2007
Picture: Aziza Rahaman Sylvia with the distinguished textile engineers at the ITET Convention in Dhaka 20060302
http://biggani.org/?p=118

Last Updated: 20200905

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āĻŽāĻ¨্āĻ¤āĻŦ্āĻ¯:
Thanks for the comments on textile
āĻ˛িāĻ–েāĻ›েāĻ¨ Baezid, December 07, 2008
Hello Madam,

Thanks for your hope on the textile world esp. Bangladesh. yes, we need to keep the textile sector away from the bloody bangladeshi political people!!!
Thanks,

Baezid /Dhaka

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ:
āĻ˛িāĻ–েāĻ›েāĻ¨ salmaAkter, December 10, 2008


āĻ¸āĻ¤্āĻ¯েāĻ° āĻ°ূāĻĒ āĻāĻ•āĻŸাāĻ‡। āĻ¸āĻ¤্āĻ¯ āĻ…āĻ¨িāĻ¨্āĻĻ্āĻ¯ āĻ¸ুāĻ¨্āĻĻāĻ°। āĻ†āĻ° āĻ¸্āĻŦāĻĒ্āĻ¨েāĻ° āĻļāĻ•্āĻ¤ি āĻ…āĻ¸ীāĻŽ। āĻ†āĻ° āĻ¤াāĻ‡ āĻ†āĻŽāĻ°া āĻ†āĻœāĻ“ āĻāĻ—িā§Ÿে āĻšāĻ˛েāĻ›ি-āĻĒ্āĻ°āĻ¤্āĻ¯ā§Ÿ āĻ“ āĻĒ্āĻ°āĻ¤িāĻļ্āĻ°ুāĻ¤ি āĻ¨িā§Ÿে, āĻ¸ুāĻ¨্āĻĻāĻ° āĻ†āĻ—াāĻŽীāĻ° āĻĒ্āĻ°āĻ¤্āĻ¯াāĻļাā§Ÿ।
Thank you very much.

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ:
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, December 11, 2008

Baezid,
Thanks for your complements! Yes, we can empower our people and politics!!
"amader deshe hobe sei chhele kobe, kothai na borro hoye kaje borro hobe!"
Bolunto ei uktiti kar?
Shuvarthee,
Shafiul.

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ:
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, December 11, 2008

Salma,
Thanks for your complements! āĻ¸্āĻŦāĻĒ্āĻ¨েāĻ° āĻļāĻ•্āĻ¤ি āĻ…āĻ¸ীāĻŽ।
"amader deshe hobe sei meye kobe, kothai na borro hoye kaje borro hobe!"
Bolunto ei uktiti kar?
Shuvarthee,
Shafiul.

...
āĻ˛িāĻ–েāĻ›েāĻ¨ salma Akter, February 17, 2009

Original ta chilo Kusum kumari debir r eta apnar!
Thanks a lot .

...
āĻ˛িāĻ–েāĻ›েāĻ¨ āĻĄিāĻœিāĻŸাāĻ˛ āĻ•āĻ˛āĻŽ, December 18, 2009


āĻ­াāĻŦāĻ¤ে āĻ–ুāĻŦ āĻ­াāĻ˛ো āĻ˛াāĻ—āĻ›ে āĻ¯ে āĻ†āĻŽিāĻ“ āĻāĻ•āĻ‡ āĻĒ্āĻ°āĻ¤িāĻˇ্āĻ াāĻ¨েāĻ° āĻ›াāĻ¤্āĻ°............āĻ†āĻĒ্āĻ¨াāĻĻেāĻ° āĻ¨েāĻ¤ৃāĻ¤্āĻŦে āĻāĻ‡ āĻ¸েāĻ•্āĻŸāĻ°āĻ•ে āĻāĻ—িāĻ‡ā§Ÿে āĻ¨েāĻŦাāĻ° āĻ†āĻļা āĻ°াāĻ–ি।।

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, December 21, 2009
Thanks for your thoughts! We can train our brain to further our talents!

...
āĻ˛িāĻ–েāĻ›েāĻ¨ M.M.Hossen Khokon, May 10, 2010
Thanks Mr. Shafiul Islam for his writings.

Aziza madam is a crown woman in this sector who has taken such type of decision to be a textile engineer in that time. Now lots of women are educated in this field.

Anyway please write about

Textile and garment sectors contribute more than 80% of our export but there is no research institute. It's a shame for us. Lots of foreigners are working in this sector. But we the Bangladeshi are not capable for this? What do you think?

Thanks,

Khokon

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, May 10, 2010
Khokon, Thanks for your thoughts. We all can make a difference!

What about BTMC?
āĻ˛িāĻ–েāĻ›েāĻ¨ Md Mirjahan Khan, November 29, 2010
first of all I think I should be sorry, If I make any mistake in my comment. My confusion is all about the industries related to BTMC. Because the private textile industries are making profit with little investment and expanding dramatically, but the industries under BTMC have not seen profit for many years and are almost closed. Why this situation come and can it be overcome?

...
āĻ˛িāĻ–েāĻ›েāĻ¨ Md Didarul Islam Rupon, February 01, 2011
I am Student of textile engineer.I got inspiration by Aziza silvia because i am bograr chol.

āĻ¸ুāĻ¤া āĻ†āĻŽāĻĻাāĻ¨িāĻ° āĻŦ্āĻ¯āĻĒাāĻ°ে্‌...
āĻ˛িāĻ–েāĻ›েāĻ¨ āĻŽোঃ āĻļাāĻŽীāĻŽ āĻ°েāĻœা , August 24, 2011
My name is shamim , I am a student of Pabna Textile Engineering College , university of Rajshahi. Now i am in B.Sc. in Textile Engineering final year student., i have a some comments____________āĻ‡āĻĻািāĻ¨ং āĻ†āĻŽāĻ°া āĻĻেāĻ–āĻ¤ে āĻĒাāĻš্āĻ›ি āĻ¯ে āĻ¸ুāĻ¤াāĻ° āĻĻাāĻŽ āĻ†āĻ—েāĻ° āĻ¤ুāĻ˛āĻ¨াāĻ‡ āĻ…āĻ¨েāĻ• āĻŦেā§œে āĻ—েāĻ›ে । world market a āĻ¤ুāĻ˛াāĻ° āĻĻাāĻŽ āĻŦাā§œাāĻ° āĻ•াāĻ°āĻ¨ে, āĻāĻ›াā§œাāĻ“ āĻ†āĻ° āĻ…āĻ¨েāĻ• āĻ•াāĻ°āĻ¨ে। āĻ¤াāĻ‡ ৈāĻ¤িāĻ° āĻĒোāĻļাāĻ• āĻāĻŦং āĻĻেāĻļāĻ“ āĻŦāĻ¸্āĻ¤েāĻ° āĻĻাāĻŽ āĻ“ āĻŦāĻšুāĻ˛ āĻ…ংāĻļে āĻŦেā§œে āĻ—েāĻ›ে । āĻ†āĻŽāĻ°া āĻļুāĻ˛āĻ¤ে āĻĒাāĻš্āĻ›ি āĻ¯ে āĻ¸ুāĻ¤াāĻ° ā§Šā§Ļ count āĻāĻ° āĻ¨িāĻšে āĻ…āĻ¨েāĻ• āĻ¸ুāĻ¤া āĻŦেāĻļি āĻĻাāĻŽে ,āĻĒাāĻļেāĻ° āĻĻেāĻļ India āĻĨেāĻ•ে āĻ†āĻŽāĻĻাāĻ¨ি āĻ•āĻ°া āĻšāĻš্āĻ›ে । āĻ†āĻŽāĻ°া āĻœাāĻ¨ি India āĻ¤ে āĻ‰āĻ¨্āĻ¨āĻ¤ āĻŽ্āĻ¯াāĻļিāĻ¨ āĻĻাāĻ°া Secondary āĻ¤ুāĻ˛া āĻ•ে recycling āĻ•āĻ°ে āĻ•āĻŽ āĻ•āĻ‰āĻ¨্āĻ¤ āĻāĻ° āĻ¸ুāĻ¤া āĻ•āĻŽ cost āĻ ৈāĻ¤িāĻ° āĻ•āĻ°āĻ›ে । āĻāĻŦং world market āĻ āĻ¤াāĻĻেāĻ° āĻ¸ুāĻ¤াāĻ° āĻĒ্āĻ°āĻ¸াāĻ° āĻ˜āĻŸāĻ›ে ।āĻ†āĻŽāĻ°া āĻ•ি āĻĒাāĻ°ি āĻ¨া āĻ†āĻŽাāĻĻেāĻ° āĻĻেāĻļে āĻ‰āĻ¨্āĻ¨āĻ¤ āĻŽাāĻ¨েāĻ° āĻŽ্āĻ¯াāĻļিāĻ¨ āĻ†āĻŽāĻĻেāĻ¨ি āĻ•āĻ°া āĻ¨āĻ¤ুāĻ¨ āĻ¨āĻ¤ুāĻ¨ spinning mill established āĻ•āĻ°ে Secondary āĻ¤ুāĻ˛া āĻ•ে recycling āĻ•āĻ°ে āĻ•āĻŽ āĻ•āĻ‰āĻ¨্āĻ¤ āĻāĻ° āĻ¸ুāĻ¤া ৈāĻ¤িāĻ° āĻ•āĻ°āĻ¤ে ? āĻāĻ¤ে āĻĻেāĻļে āĻ¸ুāĻ¤াāĻ° āĻ¸āĻ°āĻŦāĻ°াāĻš āĻŦাāĻ°āĻŦে। āĻŦেāĻļি āĻĻাāĻŽে āĻ¸ুāĻ¤া āĻ†āĻŽāĻĻাāĻ¨ি āĻ“ āĻ•āĻ°āĻ¤ে āĻšāĻŦে āĻ¨া।

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, February 20, 2012
Greetings Md Mirjahan Khan,

Thank you for your thoughts and concerns. Unfortunately we cannot comment on BTMC's activity and productivity. But we feel we all can do our part - empower ourselves, dare to dream and exceed expectations.

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, February 20, 2012

Greetings Md Didarul Islam Rupon,
Thanks for your wonderful thoughts....

āĻ¸āĻŽ্āĻ­াāĻŦāĻ¨াāĻŽā§Ÿ āĻŦāĻ¸্āĻ¤্āĻ° āĻ“ āĻĒোāĻļাāĻ• āĻļিāĻ˛্āĻĒ: āĻ†āĻœিāĻœা āĻ°āĻšāĻŽাāĻ¨ āĻ¸িāĻ˛āĻ­িā§Ÿা
āĻ˛িāĻ–েāĻ›েāĻ¨ Shafiul Islam, February 20, 2012

Greetings āĻŽোঃ āĻļাāĻŽীāĻŽ āĻ°েāĻœা,
We appreciate your thoughts. If you really believe in the project, nobody can stop you to go ahead and make a difference. Good luck to your journey. Thanks again.
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