Slow evaporation method was used to grow the pure and K
+
ion doped L-Lysine monohydrochloride (L-LMHCL) crystals which has optical and antibiotic applications. The space group, structure and slight shifting of peaks are confirmed using single crystal XRD and the powder XRD. The FTIR analysis also shows that the K
+
doped L-LMHCL has a slight shifting in the spectrum which indicates the functional group of L-LMHCL and the interaction between the K
+
ions. The existence of K
+
ion in the doped crystal is assured by the presence of potassium in the EDAX spectrum. The wide optical band gap was found for pure and K
+
doped crystal using UV spectra and these are utilized in optoelectronic and nonlinear applications. The Kurtz Perry technique specified the NLO property of grown crystals. The dielectric property crystals was studied by varying the temperature. As a result, the highest dielectric constant is observed in doped crystal. An antibacterial activity against certain bacteria like E-coli, pseudomonas aeruginosa and staphylococcus aureus are provided by mm range for the grown crystals.
Highly translucent nonlinear single crystals of L-Threoninum Sodium Bromide (LTSB) has been grown because of their rising need for everyday life and the XRD studies (PXRD and SXRD) solemnly affirmed the crystallinity and non-centrosymmetric space group of LTSB materials. The bonding nature and diverse functional groups in LTSB were demonstrated by FTIR analysis when they absorb infrared radiation. The optical behavior of LTSB crystals was explored through UV–Vis spectroscopy, which shows optical parameters depend on photon energy with band gap E
g
= 5.7 eV which was suitable for optoelectronic devices. The electrical properties of LTSB crystals were measured by using dielectric measurement. The solid state parameters of LTSB crystal were calculated. An antibacterial activity developed by LTSB crystals against different pathogenic bacteria were examined using the Agar disk diffusion process. The antibacterial inhibitory activity of LTSB crystal revealed that it can be used to treat a variety of bacterial infections.
By the most widely used slow evaporation technique at room temperature, L-Threoninum Cobalt (II) Sulfate Heptahydrate (LTCS) materials were grown for various applications. The structure of orthorhombic LTCS was identified by X-Ray Diffraction studies (Powder X-Ray Diffraction and Single crystal X-Ray Diffraction), this analysis has also reported the crystallinity, cell parameters (a = 5.35, b = 7.93, c = 13.71), and space group (non-centrosymmetric) of the grown material. Functional groups were affirmed by FTIR analysis. Optical analysis straightforwardly confirms LTCS crystals has greater optical transparency, and Eg = 5.6 eV demonstrates the appropriateness of prepared crystals to optical applications. The mechanical properties were validated with the aid of Vickers' microhardness measurement and that also suggests LTCS belongs to the class of hard material. In this respect, the SHG efficiency of the LTCS crystal grown is 1.25 times greater than that of the KDP crystal because Co+ ions boost the SHG efficiency of LTCS and it was tested by Kurtz and Perry's technique. Electrical results documented the good conducting properties of LTCS crystal. The LTCS substance used to treat fungal and bacterial infections and this bacterial and fungal destroying property was validated by an antimicrobial assay.
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