Startups in the buyer-supplier relationship, limitations to be an attractive customer:definitions and theoretical framework

This paper will analyze the startup as a buying firm in the buyer-supplier relationship. When trying to become an interesting customer to large suppliers, startups may have limitations to establish a business relationship. As startups are new and small, they could be perceived as not attractive, or do not have enough attractiveness to start the relationship. Therefore, a literature-based framework for explaining startup attractiveness will be proposed

Startups in the buyer-supplier relationship, limitations to be an attractive customer:definitions and theoretical framework

When startups want to buy from large suppliers, they may find it challenging to establish a business relationship. As startups are new, small, have limited resources and scarce track record, they could be perceived as not attractive to start the relationship with large suppliers. Startups could benefit from understanding the challenges and opportunities from a customer attractiveness perspective. Therefore, we offer a systematic literature review and develop a framework for what makes a startup an attractive buyer from large suppliers

The Methylene Blue Self-aggregation in Water/Organic Solvent Mixtures: Relationship Between Solvatochromic Properties and Singlet Oxygen Production

In this work is presented a spectrophotometric investigation focused on the solvatochromic effects upon Methylene Blue (MB). Measurements were carried out in four different water/organic solvent mixtures: low polarity protic solvent (ethanol), polar non-protic solvent (acetonitrile), highly polar protic solvent (glycerol), and non-polar solvent (dioxane). The results showed that the photophysical behavior of MB is highly affected by self-aggregates formation at 80% of water/organic solvent blends. Besides polarity, the protic character and the coordinating properties of the solvent molecules are the key parameters for its photophysical behavior, since the sulfur atom of the cationic structure can act as a coordination center due to its Lewis acid character. In fact, water and acetonitrile coordinating properties have proved to be important to determine MB interactions intensity and its spectroscopic properties as singlet oxygen emission. It was observed that an increase of the amount of the organic solvent resulted in an enhancement of the singlet oxygen emission intensity. The presence of the water increases the dielectric constant of the medium and favors the self-aggregation process. Besides, the water molecules can act as a quencher and it decreases the quantum yield of the fluorescence of MB.FAPESPCNPqFarma Service BioExtract LtdaUniv Fed Sao Joao del Rei, Dept Zootecnia DEZOO, Campus Dom Bosco, BR-36301160 Sao Joao Del Rei, MG, BrazilUniv Vale Paraiba, Ave Shishima Hifumi 2911, BR-12244000 Sao Paulo, BrazilUniv Fed Sao Paulo, Dept Quim, Rua Prof Arthur Riedel 275, BR-09972270 Sao Paulo, BrazilUniv Sao Paulo, Dept Bioquim, Inst Quim, Ave Prof Lineu Prestes 748, BR-05508900 Sao Paulo, SP, BrazilUniv Tecnol Fed Parana, Campus Apucarana,Rua Marcilio Dias 635, BR-86812460 Apucarana, Parana, BrazilUniv Fed Santa Catarina, BR-88040900 Florianopolis, SC, BrazilUniv Estadual Maringa, Dept Quim, Av Colombo 5790,Zona 07, BR-87020900 Maringa, Parana, BrazilUniv Fed Rio de Janeiro, Campus Macae,Rua Aloisio da Silva Gomes 50, BR-27930560 Rio De Janeiro, BrazilUniv Estadual Campinas, Inst Quim, BR-13083970 Sao Paulo, BrazilUniv Fed Rio Grande, Escola Quim & Alimentos, Campus Carreiros Pavilhao Quim, BR-96201900 Rio Grande, RS, BrazilUniv Fed ABC, Ctr Engn Modelagem & Ciencias Sociais Aplicadas, Ave Estados 5001, BR-09210580 Sao Paulo, BrazilUniv Fed ABC, Ctr Ciencias Nat & Humanas, Ave Estados 5001, BR-09210580 Sao Paulo, BrazilUniv Fed Sao Paulo, Dept Quim, Rua Prof Arthur Riedel 275, BR-09972270 Sao Paulo, BrazilFAPESP: JP 04/02193-1FAPESP: 02/00272-6FAPESP: 06/56701-3FAPESP: 2005/51597-8CNPq: 474019/2012-8]CNPqFarma Service BioExtract LtdaWeb of Scienc