01893nas a2200193   4500008004100000022001400041245011200055210006900167260011000236300001400346490000700360520110200367100002001469700002001489700001801509700002001527700002201547856013001569       2011                        eng d  a0959-942800aSynthesis and characterization of poly-L-lysine grafted SBA-15 using NCA polymerization and click chemistry0 aSynthesis and characterization of polyLlysine grafted SBA15 usin  aTHOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLANDbROYAL SOC CHEMISTRYcAPR  a6690-66970 v213 a<p>Poly-L-lysine (PLL) grafted ordered mesoporous material was prepared by a combination of NCA polymerization and click chemistry. Large pore SBA-15 with a mesopore diameter of similar to 12 nm was synthesized using a previously reported method. The surface of this SBA-15 material was modified with azidopropyl groups. This ``clickable'' SBA-15 was then reacted with an alkyne terminated poly-L-lysine synthesized by the ring-opening polymerization of 3-cbz-L-lysine NCA with N-TMS propargylamine as the initiator. This procedure allows grafting of a uniform polymer film with a high polymer loading. No appreciable pore blocking was observed upon grafting of PLL. No change in the periodic structure of the SBA-15 was observed throughout the grafting process. The SBA-15 PLL conjugate was characterized using (13)C and (29)Si NMR, XRD, FT-IR, N(2) adsorption-desorption and thermogravimetry. The results indicate that polypeptides can be easily grafted onto various ordered mesoporous materials by this ``grafting to'' methodology with accessible pores and high loadings of the polypeptide.</p>1 aKar, Mrityunjoy1 aMalvi, Bharmana1 aDas, Anindita1 aPanneri, Suyana1 aGupta, Sayam, Sen  uhttps://library.ncl.res.in/content/synthesis-and-characterization-poly-l-lysine-grafted-sba-15-using-nca-polymerization-and-002792nas a2200337   4500008004100000022001400041245011000055210006900165260007100234300001200305490000600317520166100323653001301984653002501997653001502022653001502037653002102052100001702073700002002090700002002110700002002130700002202150700002102172700002102193700002202214700001902236700002702255700001702282700002502299856013002324       2014                        eng d  a2168-048500aUptake of Azo dyes into silk glands for production of colored silk cocoons using a green feeding approach0 aUptake of Azo dyes into silk glands for production of colored si  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcFEB  a312-3170 v23 a<p>Dyeing of textile fabrics is considered to be one of the most polluting industries today, and there is a need to develop green processes that can reduce this pollution. A promising technology that can potentially cleanup the dyeing of silk fibers that are widely used for textile applications would involve the generation of intrinsically colored silk cocoons. This can be achieved by feeding of Bombyx mori silkworm larvae with a modified feed of mulberry leaves containing a sprayed dye solution. This process significantly reduces the need for treating toxic dye effluents that are generated in traditional dyeing processes. In this report, we have evaluated a set of seven different azo dyes that are used in the textile industry for dyeing to produce intrinsically dyed silk. The dyes used in the study had similar chemical structures with systematically varying partition coefficients. The results suggest that while some dyes produced intrinsically colored silk other did not. Careful evaluation of the physical properties of these related azo dyes suggest that the balance of hydrophobic and hydrophilic character is necessary for diffusion of the dye from the alimentary canal of the silkworm larva into the hemolymph and later into the silk glands. The partition coefficient of the dye also determines the preferential association of the dye with either sericin or fibroin protein in the silkworm gland and finally into the cocoon. These insights are extremely important in development of novel dye molecules that can be successfully fed to Bombyx mori silkworm larvae for producing intrinsically colored silk of various colors and shades.</p>10aAzo dyes10aBiochemical pathways10aColor silk10aDye uptake10a`' Green `' silk1 aNisal, Anuya1 aTrivedy, Kanika1 aMohammad, Hasan1 aPanneri, Suyana1 aGupta, Sayam, Sen1 aLele, Ashish, K.1 aManchala, Ramesh1 aKumar, Nirmal, S.1 aGadgil, Mugdha1 aKhandelwal, Harish, B.1 aMore, Snehal1 aLaxman, Ryali, Seeta  uhttps://library.ncl.res.in/content/uptake-azo-dyes-silk-glands-production-colored-silk-cocoons-using-green-feeding-approach-0